Powered by Deep Web Technologies
Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Jefferson Lab Science Series - Finding Subatomic Particles at...  

NLE Websites -- All DOE Office Websites (Extended Search)

Jurassic Park) Cloning: The Science Behind Jurassic Park Finding Subatomic Particles at CEBAF Dr. Keith Baker - Hampton University and CEBAF November 16, 1993 How physicists detect...

2

Classical Models of Subatomic Particles  

E-Print Network (OSTI)

We look at the program of modelling a subatomic particle---one having mass, charge, and angular momentum---as an interior solution joined to a classical general-relativistic Kerr-Newman exterior spacetime. We find that the assumption of stationarity upon which the validity of the Kerr-Newman exterior solution depends is in fact violated quantum mechanically for all known subatomic particles. We conclude that the appropriate stationary spacetime matched to any known subatomic particle is flat space.

R. B. Mann; M. S. Morris

1993-07-21T23:59:59.000Z

3

Physics Division: Subatomic Physics Group  

NLE Websites -- All DOE Office Websites (Extended Search)

Subatomic Physics Subatomic Physics Physics home » Subatomic Physics Site Home About Us Groups Applied Modern Physics, P-21 Neutron Science and Technology, P-23 Plasma Physics, P-24 Subatomic Physics, P-25 CONTACTS Group Leader Jon Kapustinsky (Acting) Deputy Group Leader Andy Saunders Office Administration Irene Martinez Miquela Sanchez Group Office (505) 667-6941 Physics Links Jobs in Physics Human Resources Working at Los Alamos Los Alamos resources Who we are, what we do We conduct basic research in nuclear and particle physics, applying this expertise to solve problems of national importance. By pushing the limits of our understanding of the smallest building blocks of matter through diverse experiments probing aspects of subatomic reactions, we aim to provide a more thorough understanding of the basic

4

Subatomic Particle Electromagnetic Wave Solutions in a Cylindrical ...  

Science Conference Proceedings (OSTI)

New Saccharification Process of Cellulosic Biomass by Microwave Irradiation Novel Lamination Method for Large Armor Panels Raman Spectroscopy for...

5

Jefferson Lab Science Series - Neutrinos: Much Ado About (Almost...  

NLE Websites -- All DOE Office Websites (Extended Search)

The Big Sting) Science Series Video Archive Next Video (Finding Subatomic Particles at CEBAF) Finding Subatomic Particles at CEBAF Neutrinos: Much Ado About (Almost) Nothing Dr....

6

Jefferson Lab Science Series - Cloning: The Science Behind Jurassic...  

NLE Websites -- All DOE Office Websites (Extended Search)

Subatomic Particles at CEBAF Previous Video (Finding Subatomic Particles at CEBAF) Science Series Video Archive Next Video (Pollution Sleuthing Using an Accelerator) Pollution...

7

Burton Richter, Storage Rings, and the J/psi Particle  

Office of Scientific and Technical Information (OSTI)

machine to discover a subatomic particle in 1974 which they called psi particle. A team led by Samuel Ting and using the facilities at Brookhaven National Laboratory made the...

8

Finding  

Office of Legacy Management (LM)

Junction UMTRA Project Site (Climax Uranium Millsite) September 1999 U.S. Department of Energy Grand Junction Office Grand Junction, Colorado Finding of No Significant Impact...

9

Finding  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding Finding of No Significant Impact Ground Water Compliance at the Grand Junction UMTRA Project Site (Climax Uranium Millsite) September 1999 U.S. Department of Energy Grand Junction Office Grand Junction, Colorado Finding of No Significant Impact Environmental Assessment The U.S. Department of Energy (DOE) proposes a strategy to achieve ground water compliance at the Grand Junction, Colorado, LJMTRA project site, formerly known as the Climax Uranium Millsite. The proposed compliance strategy is no remediation and the application of supplemental standards. This proposed action and a no-action alternative are described in the Environmental Assessment of Ground Water Compliance at the Grand Junction UMTRA Project Site (Climax Uranium Millsite) (see attached DOE/EAB 1312). The Environmental Assessment analyzes the relevant environmental issues at the Grand Junction site,

10

The Particle Adventure | What holds it together? | Quantum mechanics  

NLE Websites -- All DOE Office Websites (Extended Search)

Quantum mechanics Quantum mechanics One of the surprises of modern science is that atoms and sub-atomic particles do not behave like anything we see in the everyday world. They are...

11

WEDGE-AND-STRIP ANODES FOR CENTROID-FINDING POSITION-SENSITIVE PHOTOM AND PARTICLE DETECTORS  

SciTech Connect

We discuss new anode geometries, employing position-dependent charge partitioning, which can be used with microchannel plates, planar proportional counters, and mesh dynode electron multipliers to obtain a two-dimensional position signal from each detected photon or particle. Only three or four anode electrodes and signal paths are required, yet images comprised of a number of detected events have little geometric distortion and the resolution is not limited by thermal noise inherent in resistive sheet anodes. We present an analysis of the geometrical image nonlinearity in the relationship between event centroid location and the charge partition ratios. Fabrication and testing of two wedge-and-strip anode systems are discussed. Images obtained with EUV radiation and microchannel plates that verify the predicted performance of this readout system are shown. We emphasize that the spatial resolution of the wedge-and-strip anode is in no way limited by the coarseness of the anode conductor pattern. The resolution is of the order of 0.4% of the image field size, and could be further improved by adopting low noise signal circuitry. Tradeoffs encountered in the design of practical x-ray, EUV, and charge particle image systems are discussed.

Martin, C.; Jelinsky, P.; Lampto, M.; Malina, R.F.; Anger, H.O.

1981-02-01T23:59:59.000Z

12

Superconducting transmission line particle detector  

DOE Patents (OSTI)

A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non- superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propagating in a superconducting transmission line are used to resolve N/sup 2/ ambiguity of charged particle events. 6 figs.

Gray, K.E.

1988-07-28T23:59:59.000Z

13

Superconducting transmission line particle detector  

DOE Patents (OSTI)

A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non-superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propogating in a superconducting transmission line are used to resolve N.sup.2 ambiguity of charged particle events.

Gray, Kenneth E. (Naperville, IL)

1989-01-01T23:59:59.000Z

14

The Particle Adventure | How do we detect what's happening? | The  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerators and particle detectors > How do we detect what's happening? > Accelerators and particle detectors > How do we detect what's happening? > The physicists tool: The accelerator The physicists tool: The accelerator Physicists can't use light to explore atomic and sub-atomic structures because light's wavelength is too long. However, since ALL particles have wave properties, physicists can use particles as their probes. In order to see the smallest particles, physicists need a particle with the shortest possible wavelength. However, most of the particles around us in the natural world have fairly long wavelengths. How do physicists decrease a particle's wavelength so that it can be used as a probe? A particle's momentum and its wavelength are inversely related High-energy physicists apply this principle when they use particle accelerators to increase the momentum of a probing particle, thus decreasing its wavelength.

15

The Particle Adventure | How do we know any of this? | Testing a theory  

NLE Websites -- All DOE Office Websites (Extended Search)

know any of this? > Testing know any of this? > Testing a theory Testing a theory We have discussed various aspects of the Standard Model and have delved deep into the world of tiny, invisible subatomic particles with strange names. All of this scientific theory may start to look like magic, but it's important to realize that physicists do not just sit around and make up this stuff. They test their hypotheses, and create new theories from the results of their experiments. To test theories, physicists put together experiments and use what they already know to find out what they do not know. These experiments may be simple, or they may be huge and complicated. The Standard Model rises out of thousands of years of scientific inquiry, but most of the experiments that have given rise to our current conception of particle physics have occurred relatively recently. The story of how physicists experiment to test and create theories in modern particle physics is one which starts less than a hundred years ago..

16

RESONATOR PARTICLE SEPARATOR  

DOE Patents (OSTI)

A wave guide resonator structure is described for use in separating particles of equal momentum but differing in mass and having energies exceeding one billion electron volts. The particles are those of sub-atomic size and are generally produced as a result of the bombardment of a target by a beam such as protons produced in a high-energy accelerator. In this wave guide construction, the particles undergo preferential deflection as a result of the presence of an electric field. The boundary conditions established in the resonator are such as to eliminate an interfering magnetic component, and to otherwise phase the electric field to obtain a traveling wave such as one which moves at the same speed as the unwanted particle. The latter undergoes continuous deflection over the whole length of the device and is, therefore, eliminated while the wanted particle is deflected in opposite directions over the length of the resonator and is thus able to enter an exit aperture. (AEC)

Blewett, J.P.

1962-01-01T23:59:59.000Z

17

RESONATOR PARTICLE SEPARATOR  

DOE Patents (OSTI)

A wave-guide resonator structure is designed for use in separating particles of equal momentum but differing in mass, having energies exceeding one billion eiectron volts. The particles referred to are those of sub-atomic size and are generally produced as a result of the bombardment of a target by a beam such as protons produced in a high energy accelerator. In the resonator a travelling electric wave is produced which travels at the same rate of speed as the unwanted particle which is thus deflected continuously over the length of the resonator. The wanted particle is slightly out of phase with the travelling wave so that over the whole length of the resonator it has a net deflection of substantially zero. The travelling wave is established in a wave guide of rectangular cross section in which stubs are provided to store magnetic wave energy leaving the electric wave energy in the main structure to obtain the desired travelling wave and deflection. The stubs are of such shape and spacing to establish a critical mathemitical relationship. (AEC)

Blewett, J.P.; Kiesling, J.D.

1963-06-11T23:59:59.000Z

18

Martinus Veltman, the Electroweak Theory, and Elementary Particle Physics  

Office of Scientific and Technical Information (OSTI)

Martinus Veltman, the Electroweak Theory, and Elementary Particle Physics Resources with Additional Information Martinus Veltman Courtesy University of Michigan Martinus J.G. Veltman, the John D. MacArthur Professor Emeritus of Physics at the University of Michigan, was awarded the 1999 Nobel Prize in physics "for elucidating the quantum structure of electroweak interactions in physics". 'Veltman shares [the] Nobel Prize in physics with his former graduate student, Gerardus 't Hooft, who is now a professor of physics at the University of Utrecht. They received the prize for work done in the 1960s and 1970s that made it possible for physicists to mathematically predict properties of the sub-atomic particles that make up all matter in the universe and the forces that hold these particles together.

19

Addiction Findings  

NLE Websites -- All DOE Office Websites (Extended Search)

77 September 1, 1999 Brookhaven Lab and SUNY Stony Brook Researchers Find Chemical Clues to Drug Abuse Vulnerability UPTON, NY - Why do some people who experiment with drugs become...

20

10 Questions for a Particle Physicist: Dave Schmitz | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Particle Physicist: Dave Schmitz Particle Physicist: Dave Schmitz 10 Questions for a Particle Physicist: Dave Schmitz April 7, 2011 - 5:46pm Addthis Dave Schmitz | Photo Courtesy of Fermilab Dave Schmitz | Photo Courtesy of Fermilab Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs "Neutrinos have developed a reputation for themselves by repeatedly surprising the science community. The first surprising thing was their simple existence." Dave Schmitz Particle physicist Dave Schmitz works on the MINERvA experiment at Fermi National Accelerator Lab -- he took some time to tell us why neutrinos (electrically neutral, subatomic particles) are important to the universe and why the time 1:32am has special meaning for his experiment. And, check out Dr. Schmitz's talk yesterday -- "In One Ear and Out the Other: A

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

The Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

Boson - 2 Finding the Mass of the Higgs Boson - Part 2 Adding up the masses of the particles from the Higgs decay doesn't work, because these particles have enormous kinetic energy...

22

Find Journals  

NLE Websites -- All DOE Office Websites (Extended Search)

Journals Journals Find Journals The public can search our journal collection via the Library Catalog. Questions? 667-5809 Email e-Journals Search electronic journals by title: Go Starts with Contains Exact For Advanced Search, Subject search, and more, use the Find e-Journals search tool. Looking for articles? Try our Articles/Databases page. Print Journals Search for print journals in the Library Catalog: Journal in Catalog Click on the JOURNAL link under "Location/Call number" to see what years/volumes the Library owns. Journals are shelved alphabetically on the lower level (downstairs map). Want an article scanned? Use our Request Form. PDF Troubleshooting See Adobe Reader's Support page General steps If possible, download PDF file and open in your PDF viewer software

23

The Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

Boson Finding the Mass of the Higgs Boson How do you find the mass of the Higgs Boson when it decays into other particles before we detect it? If you were going to build a bicycle,...

24

Finding Jung  

E-Print Network (OSTI)

Frank N. McMillan Jr., a country boy steeped in the traditional culture of rural Texas, was summoned to a life-long quest for meaning by a dream lion he met in the night. On his journey, he followed the lead of the founder of analytical psychology, Carl Jung, and eventually established the worlds first professorship to advance the study of that field. McMillan, born and raised on a ranch near Calvert, was an Aggie through and through, with degrees in geology and petroleum engineering. As an adult working near Bay City, Texas, he was lunching in a country caf when by chance he met abstract expressionist painter Forrest Bess, who was ecstatically waving a letter he had received from Jung himself. The artists enthusiastic description of Jung as a master psychologist, soul doctor, and healer led McMillan to the Jung Center in Houston, where he began reading Jungs Collected Works. McMillan frequently said, Jung saved my life. Finding Jung: Frank N. McMillan Jr., a Life in Quest of the Lion captures McMillans journey through the words of his own journals and through reflections by his son, Frank III. David Rosen, the holder of the first endowed McMillan professorship at Texas A&M University, adds insights to the book, and the late Sir Laurens van der Post, whom the elder McMillan met at the Houston Jung Center in 1979, authored a foreword to the book before his death. This is a story that sheds light on the inner workings of the self as well as the Jungian understanding of the Self. In often lyrical language, it gives the human background to a major undertaking in the dissemination of Jungian scholarship and provides a personal account of a life lived in near-mythic dimensions. FRANK N. MCMILLAN III, an author, educator, and speaker, has been active in worldwide Jungian circles for the past twenty-five years. A former board member of the C. G. Jung Educational Center of Houston and a member of the International Association of Jungian Studies, he lives in Corpus Christi.

McMillan, Frank N.

2012-03-29T23:59:59.000Z

25

Find LANL Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Communication Alerts Bibliographic Management Copyright Open Access How to Find LANL Publications Find LANL Publications1354608000000Find LANL PublicationsSome of these...

26

Particle separation  

DOE Patents (OSTI)

Embodiments of a method for selecting particles, such as based on their morphology, is disclosed. In a particular example, the particles are charged and acquire different amounts of charge, or have different charge distributions, based on their morphology. The particles are then sorted based on their flow properties. In a specific example, the particles are sorted using a differential mobility analyzer, which sorts particles, at least in part, based on their electrical mobility. Given a population of particles with similar electrical mobilities, the disclosed process can be used to sort particles based on the net charge carried by the particle, and thus, given the relationship between charge and morphology, separate the particles based on their morphology.

Moosmuller, Hans (Reno, NV); Chakrabarty, Rajan K. (Reno, NV); Arnott, W. Patrick (Reno, NV)

2011-04-26T23:59:59.000Z

27

Find Articles/Databases  

NLE Websites -- All DOE Office Websites (Extended Search)

ETDEWEB Energy FDsys Government Publications GeoRef Geology IEEE Xplore Computer Science Electrical Engineering INIS Collection Nuclear INSPIRE Particle Physics...

28

DOE Science Showcase - Particle Physics | OSTI, US Dept of Energy...  

Office of Scientific and Technical Information (OSTI)

Collider exit federal site A Subatomic Venture exit federal site CERN What is a Higgs Boson? Fermilab video exit federal site Brookhaven Lab and the Search for the Higgs, BNL...

29

Particle Lifetimes  

NLE Websites -- All DOE Office Websites (Extended Search)

Reviewing Particle Lifetimes Reviewing Particle Lifetimes The lifetimes of elementary particles are statistical in nature. In a given sample, one particle might decay immediately, another in 1 nanosecond, yet another after 10 milliseconds, and still another in 50 years. What we call the lifetime is the time it takes for a sample to decay so 1/e (~30%) of the sample is left; after 2 lifetimes, 1/e2 of the sample is left, and so on. Take, for example, a sample of cosmic ray muons produced in the upper atmosphere. These muons, when observed at (relative) rest in the laboratory, have a mean lifetime T. Now, since particle decay is statistical in nature, the number of undecayed particles after a given time is a negative exponential function: N(t) = No e-t/T where N(t) is the number of muons at time t, No is the initial number of

30

PARTICLE ACCELERATOR  

DOE Patents (OSTI)

A fixed-field alternating gradient accelerator for simultaneous acceleration of two particle beams in opposite directions is described. (T.R.H.)

Ohkawa, T.

1959-06-01T23:59:59.000Z

31

Particle Data Group - Errata 2012  

NLE Websites -- All DOE Office Websites (Extended Search)

2 Review of Particle Physics 2 Review of Particle Physics J. Beringer et al. (Particle Data Group), Phys. Rev. D86, 010001 (2012). During the time between editions of the Review of Particle Physics and the Particle Physics Booklet, we often find a number of errata. We correct most errata on our WWW pages. If you should find errata that are not known to us, please send mail to pdg @ lbl.gov. Pages 79, 1255 of the full Review (page 144 of the DataBooklet, pages 3, 3, 10 of the Web versions below): p, n, N-resonces; Baryons Summary Table (page 3) Baryons Summary Table (page 3) p Particle Listing (page 10) (November 28, 2012): The value of the partial mean life limit for n n → νe νe should read: > 1.4 (1030 years) at 90% CL. Page 320 of the full Review (page 4 of the Web versions below):

32

Find Conference Proceedings  

NLE Websites -- All DOE Office Websites (Extended Search)

Here is one strategy: Click on "Advanced Search" tab Choose "Words in all fields" field Enter keywords from the conference title and location Plutonium and Albuquerque will find...

33

Particle Data Group - Errata 2007  

NLE Websites -- All DOE Office Websites (Extended Search)

7 Review of Particle Physics 7 Review of Particle Physics During the time between editions of the Review of Particle Physics and the Particle Physics Booklet, we often find a number of errata. We correct most errata on our WWW pages. If you should find errata that are not known to us, please send mail to pdg @ lbl.gov. Page 1 and multiple others of the Web version below: Gauge and Higgs Boson Particle Listings Z boson (July 16, 2007): - In sub-header text to many measurement blocks any reference to "The Z boson" note should also include reference to LEP-SLC 06 (published in Phys. Rept. 427; 257 (2006)), e.g.: 'see the note "The Z boson" and ref. LEP-SLC 06' in the "Z MASS" sub-header text (page 1). - List of Z REFERENCES, page 48, should contain LEP-SLC 06 PRPL 427 257 ALEPH, DELPHI, L3, OPAL, SLD

34

Online Particle Physics Information - Particles & Properties...  

NLE Websites -- All DOE Office Websites (Extended Search)

Particles & Properties Data Review of Particle Physics (RPP) A biennial comprehensive review summarizing much of the known data about the field of particle physics produced by the...

35

The Particle Adventure | Particle decays and annihiliations ...  

NLE Websites -- All DOE Office Websites (Extended Search)

virtual particles. Virtual particles do not violate the conservation of energy. The kinetic energy plus mass of the initial decaying particle and the final decay products is...

36

The Particle Adventure | Accelerators and Particle Detectors  

NLE Websites -- All DOE Office Websites (Extended Search)

Waves and particles The world's meterstick Mass and energy Energy-mass conversion Accelerators How to obtain particles to accelerate Accelerating particles Accelerating...

37

Review of Particle Physics  

E-Print Network (OSTI)

11. Particle Physics Education Sites . . . . . . . . .ONLINE PARTICLE PHYSICS INFORMATION 1.11. Particle Physics Education Sites . . . . . . . . . . 12.

Nakamura, Kenzo

2010-01-01T23:59:59.000Z

38

Find and Compare Cars  

NLE Websites -- All DOE Office Websites (Extended Search)

You are here: Find a Car - Home You are here: Find a Car - Home Find and Compare Cars Browse by Model Go Need help choosing a car? woman shopping for car Search by MPG, price, make, body style, and much more with our Power Search Search by Class 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Small Cars Family Sedans Upscale Sedans Luxury Sedans Large Sedans Hatchbacks Coupes Convertibles Sports/Sporty Cars Station Wagons Pickup Trucks Sport Utility Vehicles Minivans Vans Combined MPG >= 45 40 35 30 25 20 15 10 Go Browse New Cars sedan Small Cars sedan Sedans coupe Coupes hatchback Hatchbacks sporty car Sporty Cars luxury car Luxury Cars station wagon Wagons minivan Minivans truck Trucks SUV SUVs hybrid Hybrid Vehicles diesel Diesel Vehicles flex-fuel vehicle

39

Elementary Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

Elementary Particles Elementary Particles Elementary Particles Detectors Accelerators Visit World Labs For Children - for younger people Electric Forces & Fields For Children The Electric Force For Children Electric Force Fields For Children Charges and Fields For Children Vibrating Charges and Electromagnetic Waves Electrons For Older People The Discovery of the Electron Traveling Waves For Older People Waves and Wave-Like Motion For Children Catch the Wave For Children Vibrating Charges and Electromagnetic Waves For Children Electromagnetic Waves Standing Waves For Older People Physics 128 Lecture Standing Waves For Older People Resonance in Strings and Springs For Older People Standing Wave - 1st Harmonic For Older People Standing Wave - 2nd Harmonic Atom For Older People Bohr Atom

40

Carbon particles  

DOE Patents (OSTI)

A method and apparatus whereby small carbon particles are made by pyrolysis of a mixture of acetylene carried in argon. The mixture is injected through a nozzle into a heated tube. A small amount of air is added to the mixture. In order to prevent carbon build-up at the nozzle, the nozzle tip is externally cooled. The tube is also elongated sufficiently to assure efficient pyrolysis at the desired flow rates. A key feature of the method is that the acetylene and argon, for example, are premixed in a dilute ratio, and such mixture is injected while cool to minimize the agglomeration of the particles, which produces carbon particles with desired optical properties for use as a solar radiant heat absorber.

Hunt, Arlon J. (Oakland, CA)

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Trillion Particles,  

NLE Websites -- All DOE Office Websites (Extended Search)

Trillion Trillion Particles, 120,000 cores, and 350 TBs: Lessons Learned from a Hero I/O Run on Hopper Surendra Byna ∗ , Andrew Uselton ∗ , Prabhat ∗ , David Knaak † , and Yun (Helen) He ∗ ∗ Lawrence Berkeley National Laboratory, USA. Email: {sbyna, acuselton, prabhat, yhe}@lbl.gov † Cray Inc., USA. Email: knaak@cray.com Abstract-Modern petascale applications can present a variety of configuration, runtime, and data management challenges when run at scale. In this paper, we describe our experiences in running VPIC, a large-scale plasma physics simulation, on the NERSC production Cray XE6 system Hopper. The simulation ran on 120,000 cores using ∼80% of computing resources, 90% of the available memory on each node and 50% of the Lustre scratch file system. Over two trillion particles were simulated for 23,000 timesteps, and 10 one-trillion particle dumps, each ranging between

42

Particle Dynamics In A Turbulent Particle-Gas Suspension At High Stokes Number.  

E-Print Network (OSTI)

??Particle laden turbulent flows find applications in many industrial processes such as energy conversion, air pollution control etc. In these types of flows, there are (more)

Goswami, Partha Sarathi

2009-01-01T23:59:59.000Z

43

PARTICLE ACCELERATOR  

DOE Patents (OSTI)

ABS>A combination of two accelerators, a cyclotron and a ring-shaped accelerator which has a portion disposed tangentially to the cyclotron, is described. Means are provided to transfer particles from the cyclotron to the ring accelerator including a magnetic deflector within the cyclotron, a magnetic shield between the ring accelerator and the cyclotron, and a magnetic inflector within the ring accelerator.

Teng, L.C.

1960-01-19T23:59:59.000Z

44

Physics Out Loud - Photomultiplier Tube  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle Resonance Previous Video (Particle Resonance) Physics Out Loud Main Index Next Video (Proton) Proton Photomultiplier Tube One way we "see" the sub-atomic particles in our...

45

Particle Lifetimes  

NLE Websites -- All DOE Office Websites (Extended Search)

Finding the Energy-Momentum Relationship       In classical physics, we can say that if we hold potential energy to be zero, then the total energy of an object...

46

Particle swarm optimization with opposite particles  

Science Conference Proceedings (OSTI)

The particle swarm optimization algorithm is a kind of intelligent optimization algorithm. This algorithm is prone to be fettered by the local optimization solution when the particle's velocity is small. This paper presents a novel particle swarm ...

Rujing Wang; Xiaoming Zhang

2005-11-01T23:59:59.000Z

47

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Charge A quantum number carried by a particle. Determines whether the particle can participate in an interaction process. A particle with electric charge has electrical...

48

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Stable Does not decay. A particle is stable if there exist no processes in which a particle disappears and in its place different particles appear...

49

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Event What occurs when two particles collide or a single particle decays. Particle theories predict the probabilities of various possible events occurring when many similar...

50

Dynamics of colloidal particles in ice  

E-Print Network (OSTI)

We use X-ray Photon Correlation Spectroscopy (XPCS) to probe the dynamics of colloidal particles in polycrystalline ice. During freezing, the dendritic ice morphology and rejection of particles from the ice created regions of high-particle-density, where some of the colloids were forced into contact and formed disordered aggregates. We find that the particles in these high density regions underwent ballistic motion coupled with both stretched and compressed exponential decays of the intensity autocorrelation function, and that the particles' characteristic velocity increased with temperature. We explain this behavior in terms of ice grain boundary migration.

Melissa Spannuth; S. G. J. Mochrie; S. S. L. Peppin; J. S. Wettlaufer

2010-12-31T23:59:59.000Z

51

And then there were particles  

E-Print Network (OSTI)

"The appearance of particles dates back to a period physicists find embarrassing, one when the amount of energy active in the Universe was so enormous that they simply cannot descrit it. It is, however, possible to imagine the birth of the elementary building blocks that make up matter and energy."(1 page)

Landua, Rolf

2007-01-01T23:59:59.000Z

52

Georges Charpak, Particle Detectors, and Multiwire Chambers  

NLE Websites -- All DOE Office Websites (Extended Search)

Georges Charpak, Particle Detectors, and Multiwire Chambers Georges Charpak, Particle Detectors, and Multiwire Chambers Resources with Additional Information · Patents Georges Charpak Courtesy of CERN Nobel laureate Georges Charpak [was] a pioneer in the art and science of particle detection ... . [He] developed a host of particle detectors used throughout experimental particle physics. In 1968, he invented and developed the first multiwire proportional chamber, for which he won the [Physics] Nobel Prize in 1992 ... . The multiwire chamber differed from earlier detectors in the speed with which it could record particle tracks from a collision-millions per second, rather than one or two per second for bubble chambers. The speed of the multiwire chamber and its successor technologies, along with their extraordinary precision, led to a revolution in particle physics ... . The technology that Charpak pioneered also finds applications in medicine and industry.

53

894 _?20[04] miles_? 895 Stanislaus 896 astronomer 896 the ...  

Science Conference Proceedings (OSTI)

... 1196 constant flow of particles 1196 gamma rays?\\s*, X-rays, and high-energy 1196 bursts?.*energized.*atomic 1196 particles 1196 subatomic ...

2002-04-29T23:59:59.000Z

54

Technology@TMS: Online Article - Materials Technology @ TMS  

Science Conference Proceedings (OSTI)

CMS is an electronic detector that is searching for never-before-detected subatomic particles, especially a particle known as Higgs boson, which is a missing...

55

Project Summary  

NLE Websites -- All DOE Office Websites (Extended Search)

history page A Summary of Particle Physics THE SUBATOMIC WORLD Particles Prior to Accelerators By the mid 1930s, the understanding of the fundamental structure of matter seemed...

56

Fermilab Today  

NLE Websites -- All DOE Office Websites (Extended Search)

collisions. The W boson is one of two subatomic particles that mediate the weak force. The other particle is the Z boson. Double W production is an important...

57

The Particle Adventure | Particle decays and annihiliations ...  

NLE Websites -- All DOE Office Websites (Extended Search)

alphabet: (alpha), (beta), and (gamma). Alpha particles are helium nuclei (2 p, 2 n): Beta particles are speedy electrons: Gamma radiation is a high-energy photon: These three...

58

The Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

Is this particle really the Higgs... Is this particle really the Higgs Boson? Does it swim and quack like a duck? While decays of this kind had been observed for the new particle...

59

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Boson A particle that has integer intrinsic angular momentum (spin) measured in units of h-bar (spin 0, 1, 2, ...). All particles are either fermions or bosons. The particles...

60

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Rest Mass The rest mass (m) of a particle is the mass defined by the energy of the isolated (free) particle at rest, divided by the speed of light squared. When particle physicists...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Decay A process in which a particle disappears and in its place different particles appear. The sum of the masses of the produced particles is always less than the mass of the...

62

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear & Particle Physics Directorate Nuclear and Particle Physics (NPP) at BNL comprises the Collider-Accelerator Department (including the NASA Space Radiation Laboratory,...

63

Particle Physics Booklet 2008  

E-Print Network (OSTI)

212 25. Accelerator physics of colliders ? 26. High-energythe full Review. PARTICLE PHYSICS BOOKLET TABLE OF CONTENTSrev. ) Summary Tables of Particle Physics Gauge and Higgs

et al., C. Amsler

2008-01-01T23:59:59.000Z

64

Small Particles, Big Impact  

NLE Websites -- All DOE Office Websites (Extended Search)

Small Particles, Big Impact Small Particles, Big Impact Small-scale effects of Aerosols Add up Over Time August 24, 2011 | Tags: Climate Research, Earth Sciences, Environmental...

65

Glossary Term - Beta Particle  

NLE Websites -- All DOE Office Websites (Extended Search)

Decay Previous Term (Beta Decay) Glossary Main Index Next Term (Bohr Radius) Bohr Radius Beta Particle Beta particles are either electrons or positrons ejected from the nucleus....

66

Glossary Term - Alpha Particle  

NLE Websites -- All DOE Office Websites (Extended Search)

Decay Previous Term (Alpha Decay) Glossary Main Index Next Term (Atomic Number) Atomic Number Alpha Particle alphaparticle.gif Produced during alpha decay, an alpha particle is a...

67

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Virtual Particle A particle that exists only for an extremely brief instant in an intermediary process. Then the Heisenberg Uncertainty Principle allows an apparent violation of...

68

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Annihilation A process in which a particle meets its corresponding antiparticle and both disappear. The energy appears in some other form, perhaps as a different particle and its...

69

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Chamber The outer layers of a particle detector capable of registering tracks of charged particles. Except for the chargeless neutrinos, only muons reach this layer from the...

70

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Hadron A particle made of strongly-interacting constituents (quarks andor gluons). These include the meson and baryons. Such particles participate in residual strong interactions...

71

The Future of Hadrons: The Nexus of Subatomic Physics  

SciTech Connect

The author offers brief observations on matters discussed at the XIV International Conference on Hadron Spectroscopy and explore prospects for hadron physics. Quantum chromodynamics (QCD) has been validated as a new law of nature. It is internally consistent up to very high energies, and so could be a complete theory of the strong interactions. Whether QCD is the final answer for the strong interactions is a subject for continuing experimental tests, which are being extended in experimentation at the Large Hadron Collider. Beyond the comparison of perturbative calculations with experiment, it remains critically important to test the confinement hypothesis by searching for free quarks, or for signatures of unconfined color. Sensitive negative searches for quarks continue to be interesting, and the definitive observation of free quarks would be revolutionary. Breakdowns of factorization would compromise the utility of perturbative QCD. Other discoveries that would require small or large revisions to QCD include the observation of new kinds of colored matter beyond quarks and gluons, the discovery that quarks are composite, or evidence that SU(3){sub c} gauge symmetry is the vestige of a larger, spontaneously broken, color symmetry. While probing our underlying theory for weakness or new openings, we have plenty to do to apply QCD to myriad experimental settings, to learn its implications for matter under unusual conditions, and to become more adept at calculating its consequences. New experimental tools provide the means for progress on a very broad front.

Quigg, Chris; /Fermilab

2011-09-01T23:59:59.000Z

72

Physics Out Loud - Particle Resonance  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle Accelerator Previous Video (Particle Accelerator) Physics Out Loud Main Index Next Video (Photomultiplier Tube) Photomultiplier Tube Particle Resonance How is a particle...

73

Particle Data Group - Errata 2008  

NLE Websites -- All DOE Office Websites (Extended Search)

8 Review of Particle Physics 8 Review of Particle Physics C. Amlser et al., Physics Letters B667, 1 (2008) During the time between editions of the Review of Particle Physics and the Particle Physics Booklet, we often find a number of errata. We correct most errata on our WWW pages. If you should find errata that are not known to us, please send mail to pdg @ lbl.gov. Pages 228, 1316 of the full Review (page 3 of the Web version below): Big-Bang Nucleosynthesis (December 18, 2008): The bottom horizontal axis label of Figure 20.1 should read: Baryon-to-photon ratio η x 1010 (and not η x 10-10); Pages 259, 1319 of the full Review (page 17 of the Web version below): Cosmic Rays (December 19, 2008): The vertical axis label of Figure 24.10 should read: E3dN/dE [m-2sr-1eV2] (and not eV-2)

74

Errata for the 2006 Review of Particle Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

6 Review of Particle Physics 6 Review of Particle Physics (Last changed ) During the time between editions of the Review of Particle Physics and the Particle Physics Booklet, we often find a number of errata. We correct most errata on our WWW pages. If you should find errata that are not known to us, please send mail to pdg@lbl.gov. We present the following errata along with the corrected PostScript and PDF files: Page 2 of the DataBooklet: Table of contents (November 10, 2006): The following Summary Tables of Particle Physics entries should read: Quarks .................................................. 24 Mesons ................................................. 26 Baryons* ............................................. 131 Searches .............................................. 159 Tests of conservation laws* ................. 164

75

The Particle Adventure | Particle decays and annihiliations ...  

NLE Websites -- All DOE Office Websites (Extended Search)

like everyday objects and have momentum, but they also have wave properties. Quantum mechanics, the mathematical basis for our theories about particles, explains the behavior of...

76

The Particle Adventure | Particle decays and annihiliations ...  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle decays and annihiliations - Electron positron annhiliation When an electron and positron (antielectron) collide at high energy, they can annihilate to produce charm...

77

Particle Physics Education Sites  

NLE Websites -- All DOE Office Websites (Extended Search)

쭺-¶ 쭺-¶ Particle Physics Education Sites ¡]¥H¤U¬°¥~¤åºô¯¸¡^ quick reference Education and Information - National Laboratory Education Programs - Women and Minorities in Physics - Other Physics Sites - Physics Alliance - Accelerators at National Laboratories icon Particle Physics Education and Information sites: top Introduction: The Particle Adventure - an interactive tour of particle physics for everyone: the basics of theory and experiment. Virtual Visitor Center of the Stanford Linear Accelerator Center. Guided Tour of Fermilab, - overviews of several aspects of Particle Physics. Also check out Particle Physics concepts. Probing Particles - a comprehensive and straight-forward introduction to particle physics. Big Bang Science - approaches particle physics starting from the theoretical origin of the universe.

78

Laser particle sorter  

DOE Patents (OSTI)

Method and apparatus are provided for sorting particles, such as biological particles. A first laser is used to define an optical path having an intensity gradient which is effective to propel the particles along the path but which is sufficiently weak that the particles are not trapped in an axial direction. A probe laser beam is provided for interrogating the particles to identify predetermined phenotypical characteristics of the particles. A second laser beam is provided to intersect the driving first laser beam, wherein the second laser beam is activated by an output signal indicative of a predetermined characteristic. The second laser beam is switchable between a first intensity and a second intensity, where the first intensity is effective to displace selected particles from the driving laser beam and the second intensity is effective to propel selected particles along the deflection laser beam. The selected particles may then be propelled by the deflection beam to a location effective for further analysis. 2 figs.

Martin, J.C.; Buican, T.N.

1987-11-30T23:59:59.000Z

79

Will scientists ever find smaller...  

NLE Websites -- All DOE Office Websites (Extended Search)

Will scientists ever find smaller elements or is hydrogen the smallest possible? The number of protons in an atom's nucleus determines which element it is. To make an element...

80

Scattering Functions of Yolk-Shell Particles  

SciTech Connect

The single-particle small-angle scattering properties of the yolk-shell particle, a new type of core-shell particle with a mobile core within the hosting shell, are systematically investigated. The Debye spatial autocorrelation function, pair distance distribution function and intraparticle structure factor (form factor) are calculated and compared to the corresponding scattering functions of reference systems of hard sphere and concentric core-shell particles with identical sizes. Based on our theoretical calculations, we find that the broken centrosymmetry, originating from the mobility of the trapped yolk, results in an imaginary scattering amplitude. As a result, it contributes an additional destructive interference term which smears certain features present in the scattering functions of the reference systems. Based on our theoretical models, we present the prospect of jointly using small angle neutron and x-ray scattering techniques to quantitatively determine the structural characteristics of yolk-shell particles.

Li, Xin [ORNL] [ORNL; Liu, Kao-Hsiang [National Taiwan University] [National Taiwan University; Wu, Bin [ORNL] [ORNL; Sanchez-Diaz, Luis E [ORNL] [ORNL; Smith, Gregory Scott [ORNL] [ORNL; Chen, Wei-Ren [ORNL] [ORNL

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

SMALL PARTICLE HEAT EXCHANGERS  

E-Print Network (OSTI)

ON ~m Small Particle Heat Exchangers Arion J. Hunt June 1978d. LBL 7841 Small Particle Heat Exchangers by Arlon J. Huntgenerally to non-solar heat exchangers. These may be of the

Hunt, A.J.

2011-01-01T23:59:59.000Z

82

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Fermion Any particle that has odd-half-integer (12, 32, ...) intrinsic angular momentum (spin), measured in units of h-bar. All particles are either fermions or bosons. Fermions...

83

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Interaction A process in which a particle decays or it responds to a force due to the presence of another particle (as in a collision). The four fundamental interactions are...

84

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Pauli Exclusion Principle The principle that no two particles in the same quantum state may exist in the same place at the same time. Particles that obey this principle are called...

85

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle A particle with no internal substructure. In the Standard Model the quarks, leptons, photons, gluons, W+ and W- bosons, and the Z bosons are fundamental. All other objects...

86

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Antiparticle For most particle types (and every fermion type) there is another particle type that has exactly the same mass but the opposite value of all other charges (quantum...

87

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Synchrotron A type of circular accelerator in which the particles travel in synchronized bunches at fixed radius...

88

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Fermilab Fermi National Accelerator Laboratory in Batavia, Illinois (near Chicago). Named for particle physics pioneer Enrico Fermi...

89

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

CERN CERN (European Laboratory for Particle Physics) is the major European international accelerator laboratory located near Geneva, Switzerland...

90

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracking The reconstruction of a "track" left in a detector by the passage of a particle through the...

91

Solar Particle Acceleration at Reconnecting 3D Null Points  

E-Print Network (OSTI)

Context: The strong electric fields associated with magnetic reconnection in solar flares are a plausible mechanism to accelerate populations of high energy, non-thermal particles. One such reconnection scenario occurs at a 3D magnetic null point, where global plasma flows give rise to strong currents in the spine axis or fan plane. Aims: To understand the mechanism of charged particle energy gain in both the external drift region and the diffusion region associated with 3D magnetic reconnection. In doing so we evaluate the efficiency of resistive spine and fan models for particle acceleration, and find possible observables for each. Method: We use a full orbit test particle approach to study proton trajectories within electromagnetic fields that are exact solutions to the steady and incompressible magnetohydrodynamic equations. We study single particle trajectories and find energy spectra from many particle simulations. The scaling properties of the accelerated particles with respect to field and plasma para...

Stanier, Adam J; Dalla, Silvia

2012-01-01T23:59:59.000Z

92

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerators and particle detectors - How do we experiment with tiny particles? - How to obtain particles to accelerate Electrons: Heating a metal causes electrons to be ejected. A...

93

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerators and particle detectors - How do we experiment with tiny particles? - Detector shapes Physicists are curious about the events that occur during and after a particle's...

94

The Particle Adventure | Particle decays and annihiliations ...  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle decays and annihiliations - Half life A lump of uranium left to itself will gradually decay, one nucleus at a time. The rate of decay is measured by how long it would take...

95

The Particle Adventure | Particle decays and annihiliations ...  

NLE Websites -- All DOE Office Websites (Extended Search)

mass in a radioactive decay go? Recall that we said that when uranium decays into thorium and an alpha particle, 0.0046 u of mass appears to have been lost. As Einstein said,...

96

Finding minimum representative pattern sets  

Science Conference Proceedings (OSTI)

Frequent pattern mining often produces an enormous number of frequent patterns, which imposes a great challenge on understanding and further analysis of the generated patterns. This calls for finding a small number of representative patterns to best ... Keywords: frequent pattern summarization, representative patterns

Guimei Liu; Haojun Zhang; Limsoon Wong

2012-08-01T23:59:59.000Z

97

Inquiring Minds  

NLE Websites -- All DOE Office Websites (Extended Search)

Quark Physicists at the Department of Energy's Fermi National Accelerator Laboratory announced on March 2, 1995 the discovery of a subatomic particle called the top quark, the last...

98

New QuarkNet Teachers Bibliography  

NLE Websites -- All DOE Office Websites (Extended Search)

Dell Publishing Company, Inc., December 1993. Schwarz, Cindy and Sheldon Glashow, A Tour of the Subatomic Zoo: A Guide to Particle Physics (paperback), AIP Press, January 1998....

99

Physics Out Loud - Particle Accelerator  

NLE Websites -- All DOE Office Websites (Extended Search)

Nucleus Previous Video (Nucleus) Physics Out Loud Main Index Next Video (Particle Resonance) Particle Resonance Particle Accelerator Andrew Hutton, Director of Accelerators at...

100

Adhesive particle shielding  

DOE Patents (OSTI)

An efficient device for capturing fast moving particles has an adhesive particle shield that includes (i) a mounting panel and (ii) a film that is attached to the mounting panel wherein the outer surface of the film has an adhesive coating disposed thereon to capture particles contacting the outer surface. The shield can be employed to maintain a substantially particle free environment such as in photolithographic systems having critical surfaces, such as wafers, masks, and optics and in the tools used to make these components, that are sensitive to particle contamination. The shield can be portable to be positioned in hard-to-reach areas of a photolithography machine. The adhesive particle shield can incorporate cooling means to attract particles via the thermophoresis effect.

Klebanoff, Leonard Elliott (Dublin, CA); Rader, Daniel John (Albuquerque, NM); Walton, Christopher (Berkeley, CA); Folta, James (Livermore, CA)

2009-01-06T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Particle Physics Outreach to Secondary Education  

Science Conference Proceedings (OSTI)

This review summarizes exemplary secondary education and outreach programs of the particle physics community. We examine programs from the following areas: research experiences, high-energy physics data for students, informal learning for students, instructional resources, and professional development. We report findings about these programs' impact on students and teachers and provide suggestions for practices that create effective programs from those findings. We also include some methods for assessing programs.

Bardeen, Marjorie G.; /Fermilab; Johansson, K.Erik; /Stockholm U.; Young, M.Jean

2011-11-21T23:59:59.000Z

102

EA-1655: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Finding of No Significant Impact 5: Finding of No Significant Impact EA-1655: Finding of No Significant Impact The Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition, Installation and Use for Research and Development The Proposed Action would create and operate an experimental facility for further advancing the development of laser-driven, plasma-based, particle beam accelerators. An existing, approximately 7,000-square-foot, accelerator laboratory area inside Building 71 at Lawrence Berkeley National Laboratory (LBNL) would be modified to accommodate the new facility. DOE has determined that the proposed action is not a major federal action that would significantly affect the quality of the human environment within the meaning of the National Environmental Policy Act of 1969. Finding of No Significant Impact for the Berkeley Lab Laser Accelerator

103

EA-1655: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

655: Finding of No Significant Impact 655: Finding of No Significant Impact EA-1655: Finding of No Significant Impact The Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition, Installation and Use for Research and Development The Proposed Action would create and operate an experimental facility for further advancing the development of laser-driven, plasma-based, particle beam accelerators. An existing, approximately 7,000-square-foot, accelerator laboratory area inside Building 71 at Lawrence Berkeley National Laboratory (LBNL) would be modified to accommodate the new facility. DOE has determined that the proposed action is not a major federal action that would significantly affect the quality of the human environment within the meaning of the National Environmental Policy Act of 1969. Finding of No Significant Impact for the Berkeley Lab Laser Accelerator

104

Stop-flow lithography for complex particle synthesis and application in directed assembly  

E-Print Network (OSTI)

The synthesis of complex microparticles is an important objective. These particles can find use in a number of applications ranging from tissue engineering to ceramics and assembly. Tuned assembly of anisotropic particles ...

Panda, Priyadarshi

2012-01-01T23:59:59.000Z

105

Radiative Heat Transfer between Neighboring Particles  

E-Print Network (OSTI)

The near-field interaction between two neighboring particles is known to produce enhanced radiative heat transfer. We advance in the understanding of this phenomenon by including the full electromagnetic particle response, heat exchange with the environment, and important radiative corrections both in the distance dependence of the fields and in the particle absorption coefficients. We find that crossed terms of electric and magnetic interactions dominate the transfer rate between gold and SiC particles, whereas radiative corrections reduce it by several orders of magnitude even at small separations. Radiation away from the dimer can be strongly suppressed or enhanced at low and high temperatures, respectively. These effects must be taken into account for an accurate description of radiative heat transfer in nanostructured environments.

Alejandro Manjavacas; F. Javier Garcia de Abajo

2012-01-26T23:59:59.000Z

106

Surrogate protein particle standards  

Science Conference Proceedings (OSTI)

... The large particles may be useful as a standard for the counting of ... drugs require visual inspection, at present there are no standards available for ...

2013-09-10T23:59:59.000Z

107

Particle Physics Education Sites  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle Physics Education Sites quick reference Education and Information - National Laboratory Education Programs - Women and Minorities in Physics - Other Physics Sites -...

108

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

at RHIC or the AGS should be submitted to the Associate Laboratory Director for Nuclear and Particle Physics, presently Steve Vigdor, Bldg. 510F, Brookhaven National...

109

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

Brookhaven National Laboratory Nuclear and Particle Physics Program Advisory Committee Meeting 12-14 September 2006 Tuesday, 12 September Room 2-160, Bldg. 510 (Physics) 0900...

110

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

Brookhaven National Laboratory Nuclear and Particle Physics Program Advisory Committee Meeting June 15-16, 2009 Agenda Reference Documents Letter to Barbara Jacak and Nu Xu (129...

111

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

Brookhaven National Laboratory Nuclear and Particle Physics Program Advisory Committee Meeting 7-8 June 2012 Agenda Related Documents: PHENIX Beam Use Proposal, STAR Beam Use...

112

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Electron The least massive electrically-charged particle, hence absolutely stable. It is the most common lepton, with electric charge -1...

113

The Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

The discovery of the Higgs boson is an enormous clue about the mechanism for giving mass to fundamental particles, as conceived by Higgs, Brout, Englert, Guralnik, Hagen, and...

114

Particle Data Group - Products  

NLE Websites -- All DOE Office Websites (Extended Search)

Group HOME: pdgLive Summary Tables Reviews, Tables, Plots Particle Listings Europe, Africa, Middle East, India, Pakistan, Russia and all other countries For copies of: ...

115

FPGA particle graphics hardware.  

E-Print Network (OSTI)

??Particle graphics simulations are well suited for modeling phenomena such as water, cloth, explosions, fire, smoke, and clouds. They are normally realized in software, as (more)

Beeckler, John Sachs.

2006-01-01T23:59:59.000Z

116

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Charge Conservation The observation that electric charge is conserved in any process of transformation of one group of particles into another...

117

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Standard Model Physicists have developed a theory of fundamental particles and interactions called the Standard Model. This site describes various aspects of this model...

118

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Weak Interaction The interaction responsible for all processes in which flavor changes, hence for the instability of heavy quarks and leptons, and particles that contain them. Weak...

119

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Antimatter Material made from antifermions. We define the fermions that are common in our universe as matter and their antiparticles as antimatter. In the particle theory there is...

120

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Z Boson A carrier particle of the weak interactions. It is involved in all weak processes that do not change flavor...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

W+, W- Boson A carrier particle of the weak interactions. It is involved in all electric-charge-changing weak processes...

122

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerator A machine used to accelerate particles to high speeds, and thus high energy compared to their rest-mass energy...

123

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Conservation When a quantity is always the same before and after a particle reaction, it is said to be conserved. Such quantities include electric charge, energy, and momentum...

124

Particle Event Pictures  

NLE Websites -- All DOE Office Websites (Extended Search)

- Identifying Particles - D0 Detector - CDF Detector - Links Project Contact: Thomas Jordan - jordant@fnal.gov Web Maintainer: qnet-webmaster@fnal.gov Last Update: April 13, 2001...

125

Neurological Findings of Lyme Disease  

E-Print Network (OSTI)

Neurologic involvement of Lyme disease typically consists of meningitis, cranial neuropathy, and radiculoneuritis, alone or in combination, lasting for months. From 1976 to 1983, we studied 38 patients with Lyme meningitis. Headache and mild neck stiffness, which fluctuated in intensity, and lymphocytic pleocytosis were the common findings. Half of the patients also had facial palsies, which were unilateral in 12 and bilateral in seven. In addition, 12 patients had motor and/or sensory radiculoneuropathies; asymmetric weakness of extremities was the most common finding. Although incomplete presentations of neurologic involvement of Lyme disease may be confused with other entities, the typical constellation of neurologic symptoms represents a unique clinical picture. Three major types of lesions comprise the neurological manifestations of Lyme disease: meningitis, cranial neuropathy, and radiculoneuritis [1]. These three may occur alone or in combination (Fig. 1). In this report, we describe thirty-eight patients who had meningitis sometimes accompanied by cranial neuropathy and/or peripheral radiculoneuropathy, as reported in depth elsewhere [2]. We believe that this constellation of symptoms is unique among neurological diseases.

Andrew R. Pachner; Allen C. Steere

1983-01-01T23:59:59.000Z

126

Finding of No Significant Impacts  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE/EA 1916 DOE/EA 1916 Finding of No Significant Impacts Page 2 of 6 system; and (6) appurtenant facilities for navigation safety and operation. The project is estimated to have an annual generation of 1.25 gigawatt-hours (GWh) after the completion of Phase 2. Because the project would be connected to the existing electrical grid, on September 1, 2011, ORPC Maine applied to the Federal Energy Regulatory Commission (FERC) for an 8-year pilot project license to construct, operate, and maintain the proposed Cobscook Bay project (FERC Project No. 12711), This application required FERC to conduct a review of the potential environmental impacts of the project in accordance with the National Environmental Policy Act (NEPA). Since DOE was considering providing financial assistance for the project, DOE

127

Some Particle Properties  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle Properties Particle Properties An Article Written Originally for Midlevel Teachers Back A particle, increasing its speed because of some force acting on it, gains energy of motion. An electron (negatively charged) gains one electron volt (eV) of energy in accelerating through a vacuum from the negative end to the positive end of a one-volt battery. The one eV of energy is given up to other particles as the electron crashes into the positive end. A proton (positively charged) traveling from positive to negative pole through the vacuum would also gain one eV of energy and give it up in its collision with particles in the negative end. This proton collision is similar to the proton beam collision with a target at Fermilab, but at Fermilab the proton energy is much greater.

128

Imaging alpha particle detector  

DOE Patents (OSTI)

A method and apparatus for detecting and imaging alpha particles sources is described. A conducting coated high voltage electrode (1) and a tungsten wire grid (2) constitute a diode configuration discharge generator for electrons dislodged from atoms or molecules located in between these electrodes when struck by alpha particles from a source (3) to be quantitatively or qualitatively analyzed. A thin polyester film window (4) allows the alpha particles to pass into the gas enclosure and the combination of the glass electrode, grid and window is light transparent such that the details of the source which is imaged with high resolution and sensitivity by the sparks produced can be observed visually as well. The source can be viewed directly, electronically counted or integrated over time using photographic methods. A significant increase in sensitivity over other alpha particle detectors is observed, and the device has very low sensitivity to gamma or beta emissions which might otherwise appear as noise on the alpha particle signal.

Anderson, David F. (Los Alamos, NM)

1985-01-01T23:59:59.000Z

129

HIGH ENERGY PARTICLE ACCELERATOR  

DOE Patents (OSTI)

An improved apparatus is presented for focusing charged particles in an accelerator. In essence, the invention includes means for establishing a magnetic field in discrete sectors along the path of moving charged particles, the magnetic field varying in each sector in accordance with the relation. B = B/ sub 0/ STAln (r-r/sub 0/)/r/sub 0/!, where B/sub 0/ is the value of the magnetic field at the equilibrium orbit of radius r/sub 0/ of the path of the particles, B equals the magnetic field at the radius r of the chamber and n equals the magnetic field gradient index, the polarity of n being abruptly reversed a plurality of times as the particles travel along their arcuate path. With this arrangement, the particles are alternately converged towards the axis of their equillbrium orbit and diverged therefrom in successive sectors with a resultant focusing effect.

Courant, E.D.; Livingston, M.S.; Snyder, H.S.

1959-04-14T23:59:59.000Z

130

Wave-Particle Duality in Classical Mechanics  

E-Print Network (OSTI)

Until recently, wave-particle duality has been thought of as quantum principle without a counterpart in classical physics. This belief was challenged after (i) finding that average dynamics of a classical particle in strong inhomogeneous oscillating field resembles that of a quantum object and (ii) experimental discovery of "walkers" - macroscopic droplets that bounce on a vertically vibrating bath of the same fluid and can self-propell via interaction with the surface waves they generate. This paper exposes a new family of objects that can display both particle and wave features all together while strictly obeying laws of the Newtonian mechanics. In contrast to the previously known duality examples in classical physics, oscillating field or constant inflow of energy are not required for their existence. These objects behave deterministically provided that all their degrees of freedom are known to an observer. If, however, some degrees of freedom are unknown, observer can describe such objects only {\\it probabilistically} and they manifest {\\it weird} features similar to that of quantum particles. We show new classical counterparts of such quantum phenomena as particle interference, tunneling, above-barrier reflection, trapping on top of a barrier, and spontaneous emission of radiation. In the light of these findings, we hypothesize that quantum mechanics may \\emph{emerge} as approximation from a more profound theory on a deeper level.

Alexander Y. Davydov

2012-01-21T23:59:59.000Z

131

Review of Particle Physics  

SciTech Connect

This biennial Review summarizes much of particle physics. Using data from previous editions, plus 2158 new measurements from 551 papers, we list, evaluate, and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons. We also summarize searches for hypothetical particles such as Higgs bosons, heavy neutrinos, and supersymmetric particles. All the particle properties and search limits are listed in Summary Tables. We also give numerous tables, figures, formulae, and reviews of topics such as the Standard Model, particle detectors, probability, and statistics. Among the 108 reviews are many that are new or heavily revised including those on neutrino mass, mixing, and oscillations, QCD, top quark, CKM quark-mixing matrix, V{sub ud} and V{sub us}, V{sub cb} and V{sub ub}, fragmentation functions, particle detectors for accelerator and non-accelerator physics, magnetic monopoles, cosmological parameters, and big bang cosmology. A booklet is available containing the Summary Tables and abbreviated versions of some of the other sections of this full Review. All tables, listings, and reviews (and errata) are also available on the Particle Data Group website: http://pdg.lbl.gov.

Particle Data Group; Nakamura, Kenzo; al., et

2010-06-30T23:59:59.000Z

132

Regional Transmission Projects: Finding Solutions  

Science Conference Proceedings (OSTI)

The Keystone Center convened and facilitated a year-long Dialogue on "Regional Transmission Projects: Finding Solutions" to develop recommendations that will help address the difficult and contentious issues related to expansions of regional electric transmission systems that are needed for reliable and economic transmission of power within and across regions. This effort brought together a cross-section of affected stakeholders and thought leaders to address the problem with the collective wisdom of their experience and interests. Transmission owners sat at the table with consumer advocates and environmental organizations. Representatives from regional transmission organizations exchanged ideas with state and federal regulators. Generation developers explored common interests with public power suppliers. Together, the Dialogue participants developed consensus solutions about how to begin unraveling some of the more intractable issues surrounding identification of need, allocation of costs, and reaching consensus on siting issues that can frustrate the development of regional transmission infrastructure. The recommendations fall into three broad categories: 1. Recommendations on appropriate institutional arrangements and processes for achieving regional consensus on the need for new or expanded transmission infrastructure 2. Recommendations on the process for siting of transmission lines 3. Recommendations on the tools needed to support regional planning, cost allocation, and siting efforts. List of Dialogue participants: List of Dialogue Participants: American Electric Power American Transmission Company American Wind Energy Association California ISO Calpine Corporation Cinergy Edison Electric Institute Environmental Defense Federal Energy Regulatory Commission Great River Energy International Transmission Company ISO-New England Iowa Public Utility Board Kanner & Associates Midwest ISO National Association of Regulatory Utility Commissioners National Association of State Utility Consumer Advocates National Grid Northeast Utilities PA Office of Consumer Advocates Pacific Gas & Electric Corporation Pennsylvania Public Utility Commission PJM Interconnection The Electricity Consumers Resource Council U.S. Department of Energy US Department of the Interior Van Ness Feldman Western Interstate Energy Board Wind on the Wires Wisconsin Public Service Commission Xcel Energy

The Keystone Center

2005-06-15T23:59:59.000Z

133

Open Problems in $?$ Particle Condensation  

E-Print Network (OSTI)

$\\alpha$ particle condensation is a novel state in nuclear systems. We briefly review the present status on the study of $\\alpha$ particle condensation and address the open problems in this research field: $\\alpha$ particle condensation in heavier systems other than the Hoyle state, linear chain and $\\alpha$ particle rings, Hoyle-analogue states with extra neutrons, $\\alpha$ particle condensation related to astrophysics, etc.

Y. Funaki; M. Girod; H. Horiuchi; G. Roepke; P. Schuck; A. Tohsaki; T. Yamada

2010-03-05T23:59:59.000Z

134

Find a SmartWay Vehicle  

NLE Websites -- All DOE Office Websites (Extended Search)

You are here: Find a Car - Home > Find a SmartWay Vehicle Find a SmartWay Vehicle Looking for an environmentally friendly vehicle? SmartWay Logo Cars and trucks awarded EPA's...

135

Nonlinear Dynamics of Active Brownian Particles  

E-Print Network (OSTI)

Abstract. We consider finite systems of interacting Brownian particles including active friction in the framework of nonlinear dynamics and statistical/stochastic theory. First we study the statistical properties for 1?d systems of masses connected by Toda springs which are imbedded into a heat bath. Including negative friction we find N + 1 attractors of motion including an attractor describing dissipative solitons. Noise leads to transition between the deterministic attractors. In the case of two-dynamical motion of interacting particles angular momenta are generated and left/right rotations of pairs and swarms are found. 1

Werner Ebeling

2002-01-01T23:59:59.000Z

136

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerators and particle detectors - How do we experiment with tiny particles? - Fixed target experiments In a fixed-target experiment, a charged particle such as an electron or a...

137

Rotating Plasma Finding is Key for ITER  

NLE Websites -- All DOE Office Websites (Extended Search)

Plasma Finding is Key for ITER Rotating Plasma Finding is Key for ITER PlasmaTurbulenceCSChang.png Tokamak turbulence showing inward-propagating streamers from normalized...

138

Energy Education and Workforce Development: Find Training  

NLE Websites -- All DOE Office Websites (Extended Search)

Training to someone by E-mail Share Energy Education and Workforce Development: Find Training on Facebook Tweet about Energy Education and Workforce Development: Find Training on...

139

Moving Industry Forward: Finding the Environmental Opportunity...  

NLE Websites -- All DOE Office Websites (Extended Search)

Moving Industry Forward: Finding the Environmental Opportunity in Biochar Moving Industry Forward: Finding the Environmental Opportunity in Biochar Print Thursday, 12 September...

140

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

experiment with tiny particles? - A linear or circular accelerator? All accelerators are either linear or circular, the difference being whether the particle is shot like a bullet...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerators and particle detectors - How do we experiment with tiny particles? - Major accelerators We invite you to explore the basic plans of the world's major accelerators so...

142

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerators Accelerators solve two problems for physicists. First, since all particles behave like waves, physicists use accelerators to increase a particle's momentum, thus...

143

The Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

Shortcomings Shortcomings of the first data Shortcomings of the first data The data were convincing but not perfect, and there were significant shortcomings. For one thing, by July 4, 2012, there weren't enough statistics to measure whether the rate at which this particle (the Higgs boson) decays to various collections of less massive particles (the "branching ratios") are those predicted by the Standard Model. A "branching ratio" is simply the probability that a particle will decay via a given decay channel. These ratios are predicted by the Standard Model, and measured by observing the same particle decay over and over again. The next plot shows the best measurements we can make of the branching ratios with the data available in 2013. Since these are the ratios to the

144

Particle Physics Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

What Is A Particle Physics Experiment? The word "experiment" often makes people envision a scientist in white lab coat and goggles walking into the lab, pouring some test tubes...

145

Particles and Prairies: Credits  

NLE Websites -- All DOE Office Websites (Extended Search)

Particles and Prairies Video Sponsors: Funding for this program was provided in part by the U.S. Department of Energy Office of Energy Research, Illinois State Board of Education's...

146

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear & Particle Physics Program Advisory Committee Meeting 21-22 June 2010 Agenda Submitted Proposals STAR Beam Use Proposal PHENIX Beam Use Proposal LoI: Feasibility Test of...

147

Nuclear & Particle Physics Directorate  

NLE Websites -- All DOE Office Websites (Extended Search)

Draft Agenda Brookhaven Nuclear and Particle Physics Program Advisory Committee Meeting 6-8 June 2011 Reference Documents PAC Recommendations, 21-22 June 2010 Charge to PAC for...

148

The Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

How Do Fundamental Particles Get Mass? > How Does the Higgs Boson... How Does the Higgs Boson get its Mass? On the other hand, if a rumor crosses the room,... ...it creates the...

149

The Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

The Higgs Boson and Beyond > Is this Higgs Boson the Higgs Boson... Is this Higgs Boson the Higgs Boson of the Standard Model? We do know that the particle we discovered is a Higgs...

150

Heterogeneous particle swarm optimizers  

Science Conference Proceedings (OSTI)

Particle swarm optimization (PSO) is a swarm intelligence technique originally inspired by models of flocking and of social influence that assumed homogeneous individuals. During its evolution to become a practical optimization tool, some heterogeneous ...

Marco A. Montes De Oca; Jorge Pea; Thomas Sttzle; Carlo Pinciroli; Marco Dorigo

2009-05-01T23:59:59.000Z

151

Particle entrapping filamentry structures  

DOE Patents (OSTI)

Minute particulates are removed from a fluid flow by directing the fluid towards a particle entrapping element having a hair-like covering a flexible filaments. The filaments have fixed root ends and movable free ends that extend away from the roots and are shiftable in response to flow pressure and particle impacts. Particles lodge within the mass of filaments while the fluid component of the flow passes through particle entrapping element if the substrate is porous or is deflected away if the substrate is impervious. The structure does not necessarily cause a sizable pressure drop in the flow and can entrap large quantities of particulates. The invention has a variety of specific applications such as, for example, removal of smoke from the exhaust gases of vehicle engines or stationary fuel consuming installations. 11 figs.

Steele, W.A.; Leider, H.R.; Mohr, P.B.

1988-09-29T23:59:59.000Z

152

Particle Data Group - Downloads  

NLE Websites -- All DOE Office Websites (Extended Search)

2 web edition of RPP for different platforms 2012 book edition of RPP Particle Physics Booklet (rpp-2012-booklet.pdf file, 7 MBytes); Review of Partilce Physics 1526 pages, Phys....

153

Particle Data Group - Downloads  

NLE Websites -- All DOE Office Websites (Extended Search)

1 web edition of RPP for different platforms 2010 book edition of RPP Particle Physics Booklet (rpp-2010-booklet.pdf file, 6 MBytes); rpp-2010-JPhys-G-37-075021.pdf file (40...

154

Particle Data Group  

NLE Websites -- All DOE Office Websites (Extended Search)

2 book, booklet will be available in August. Web edition of the Review of Particle Physics is now available. Funded By: US DOE US NSF CERN MEXT (Japan) INFN (Italy) MEC (Spain)...

155

Particle Data Group - Downloads  

NLE Websites -- All DOE Office Websites (Extended Search)

6 MBytes); rpp-2010-JPhys-G-37-075021.pdf file (40 MBytes) of the published RPP 2010 book; Figures from the reviews in RPP The PDG Monte Carlo particle numbering scheme The PDG...

156

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Collider A collider is an accelerator in which two beams traveling in opposite directions are steered together to provide high-energy collisions between the particles in one beam...

157

The Particle Adventure | Glossary  

NLE Websites -- All DOE Office Websites (Extended Search)

Fixed-target Experiment An experiment in which the beam of particles from an accelerator is directed at a stationary (or nearly stationary) target. The target may be a solid, a...

158

GPU COMPUTING FOR PARTICLE TRACKING  

E-Print Network (OSTI)

a simple GPU based particle tracking code, TracyGPU, isP U COMPUTING FOR PARTICLE TRACKING Hiroshi Nishimura, K a iCOMPUTING FOR PARTICLE TRACKING * Hiroshi Nishimura ', Kai

Nishimura, Hiroshi

2011-01-01T23:59:59.000Z

159

System for forming janus particles  

DOE Patents (OSTI)

The invention is a method of forming Janus particles, that includes forming an emulsion that contains initial particles, a first liquid, and a second liquid; solidifying the first liquid to form a solid that contains at least a portion of the initial particles on a surface of the solid; and treating the exposed particle sides with a first surface modifying agent, to form the Janus particles. Each of the initial particles on the surface has an exposed particle side and a blocked particle side.

Hong, Liang (Midland, MI); Jiang, Shan (Champaign, IL); Granick, Steve (Champaign, IL)

2011-01-25T23:59:59.000Z

160

Physics Out Loud - Elementary Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrons Previous Video (Electrons) Physics Out Loud Main Index Next Video (Gluons) Gluons Elementary Particles Learn about elementary particles from Jo Dudek, a jointly appointed...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Online Particle Physics Information - Scope  

NLE Websites -- All DOE Office Websites (Extended Search)

SLAC Online Particle Physics Information PDG Scope of this Guide While a substantial amount of particle physics information is Internet accessible, most listings do not provide...

162

Scaffold Gradients: Finding the Right Environment for ...  

Science Conference Proceedings (OSTI)

Scaffold Gradients: Finding the Right Environment for Developing Cells. For Immediate Release: May 25, 2010. ...

2013-05-14T23:59:59.000Z

163

Nonclassical assembly pathways of anisotropic particles  

E-Print Network (OSTI)

Advances in synthetic methods have spawned an array of nanoparticles and bio-inspired molecules of diverse shapes and interaction geometries. Recent experiments indicate that such anisotropic particles exhibit a variety of 'nonclassical' self-assembly pathways, forming ordered assemblies via intermediates that do not share the architecture of the bulk material. Here we apply mean field theory to a prototypical model of interacting anisotropic particles, and find a clear thermodynamic impetus for nonclassical ordering in certain regimes of parameter space. In other parameter regimes, by contrast, assembly pathways are selected by dynamics. This approach suggests a means of predicting when anisotropic particles might assemble in a manner more complicated than that assumed by classical nucleation theory.

Stephen Whitelam

2009-12-10T23:59:59.000Z

164

ENERGETIC PARTICLE DIFFUSION IN STRUCTURED TURBULENCE  

Science Conference Proceedings (OSTI)

In the full-orbit particle simulations of energetic particle transport in plasmas, the plasma turbulence is typically described as a homogeneous superposition of linear Fourier modes. The turbulence evolution is, however, typically a nonlinear process, and, particularly in the heliospheric context, the solar wind plasma is inhomogeneous due to the transient structures, as observed by remote and in situ measurements. In this work, we study the effects of the inhomogeneities on energetic particle transport by using spatially distributed, superposed turbulence envelopes. We find that the cross-field transport is significantly reduced, when compared to the results obtained with homogeneous turbulence. The reduction can reach an order of magnitude when the enveloping breaks the wave phase coherence along the mean magnetic field direction.

Laitinen, T.; Dalla, S.; Kelly, J. [Jeremiah Horrocks Institute, University of Central Lancashire, PR1 2HE Preston (United Kingdom)

2012-04-20T23:59:59.000Z

165

Properties of Hubbard models with degenerate localized single particle eigenstates  

E-Print Network (OSTI)

We consider the repulsive Hubbard model on a class of lattices or graphs for which there is a large degeneracy of the single particle ground states and where the projector onto the space of single particle ground states is highly reducible. This means that one can find a basis in the space of the single particle ground states such that the support of each single particle ground state belongs to some small cluster and these clusters do not overlap. We show how such lattices can be constructed in arbitrary dimensions. We construct all multi-particle ground states of these models for electron numbers not larger than the number of localized single particle eigenstates. We derive some of the ground state properties, esp. the residual entropy, i.e. the finite entropy density at zero temperature.

Andreas Mielke

2012-02-14T23:59:59.000Z

166

Fine Particles in Soils  

NLE Websites -- All DOE Office Websites (Extended Search)

Fine Particles in Soils Fine Particles in Soils Nature Bulletin No. 582 November 28, 1959 Forest Preserve District of Cook County Daniel Ryan, President Roberts Mann, Conservation Editor David H. Thompson, Senior Naturalist FINE PARTICLES IN SOILS If a farmer, while plowing, is visited in the field by another farmer, invariably the visitor will pick up a handful of turned over earth and knead it with his fingers while they talk. The "feel" of it tells him a lot about the texture and structure of that soil. He knows that both are important factors in the growth of plants and determine the crops that may be obtained from the land. Soil is a combination of three different things About half of it is solid matter; the other half consists of air and water The solid portion is composed of organic and inorganic materials.

167

Carbon-particle generator  

DOE Patents (OSTI)

A method and apparatus whereby small carbon particles are made by pyrolysis of a mixture of acetylene carried in argon. The mixture is injected through a nozzle into a heated tube. A small amount of air is added to the mixture. In order to prevent carbon build-up at the nozzle, the nozzle tip is externally cooled. The tube is also elongated sufficiently to assure efficient pyrolysis at the desired flow rates. A key feature of the method is that the acetylene and argon, for example, are premixed in a dilute ratio, and such mixture is injected while cool to minimize the agglomeration of the particles, which produces carbon particles with desired optical properties for use as a solar radiant heat absorber.

Hunt, A.J.

1982-09-29T23:59:59.000Z

168

Charged particle accelerator grating  

DOE Patents (OSTI)

A readily disposable and replaceable accelerator grating for a relativistic particle accelerator is described. The grating is formed for a plurality of liquid droplets that are directed in precisely positioned jet streams to periodically dispose rows of droplets along the borders of a predetermined particle beam path. A plurality of lasers are used to direct laser beams onto the droplets, at predetermined angles, thereby to excite the droplets to support electromagnetic accelerating resonances on their surfaces. Those resonances operate to accelerate and focus particles moving along the beam path. As the droplets are distorted or destroyed by the incoming radiation, they are replaced at a predetermined frequency by other droplets supplied through the jet streams.

Palmer, R.B.

1985-09-09T23:59:59.000Z

169

Precision wood particle feedstocks  

DOE Patents (OSTI)

Wood particles having fibers aligned in a grain, wherein: the wood particles are characterized by a length dimension (L) aligned substantially parallel to the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L; the L.times.H dimensions define two side surfaces characterized by substantially intact longitudinally arrayed fibers; the W.times.H dimensions define two cross-grain end surfaces characterized individually as aligned either normal to the grain or oblique to the grain; the L.times.W dimensions define two substantially parallel top and bottom surfaces; and, a majority of the W.times.H surfaces in the mixture of wood particles have end checking.

Dooley, James H; Lanning, David N

2013-07-30T23:59:59.000Z

170

A Stable Massive Charged Particle  

E-Print Network (OSTI)

We consider the possibility of the existence of a stable massive charged particle by a minimal extension of the standard model particle content. Absolute stability in the case of singly charged particle is not possible if the usual doublet Higgs exists, unless a discrete symmetry is imposed.But a doubly charged particle is absolutely stable.

G. Rajasekaran

2011-05-26T23:59:59.000Z

171

Apparatus for measuring particle properties  

DOE Patents (OSTI)

An apparatus for determining particle properties from detected light scattered by the particles. The apparatus uses a light beam with novel intensity characteristics to discriminate between particles that pass through the beam and those that pass through an edge of the beam. The apparatus can also discriminate between light scattered by one particle and light scattered by multiple particles. The particle's size can be determined from the intensity of the light scattered. The particle's velocity can be determined from the elapsed time between various intensities of the light scattered.

Rader, Daniel J. (Albuquerque, NM); Castaneda, Jaime N. (Albuquerque, NM); Grasser, Thomas W. (Albuquerque, NM); Brockmann, John E. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

172

The Particle Adventure | How do we experiment with tiny particles? |  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerating particles Accelerating particles Accelerating particles It is fairly easy to obtain particles. Physicists get electrons by heating metals; they get protons by robbing hydrogen of its electron; etc. Accelerators speed up charged particles by creating large electric fields which attract or repel the particles. This field is then moved down the accelerator, "pushing" the particles along. In a linear accelerator the field is due to traveling electromagnetic (E-M) waves. When an E-M wave hits a bunch of particles, those in the back get the biggest boost, while those in the front get less of a boost. In this fashion, the particles "ride" the front of the E-M wave like a bunch of surfers. The next page shows this process in an easier to understand animation

173

Inclusive neutral particle production  

SciTech Connect

Results of recent inclusive neutral particle production experiments are compared to existing experimental results. These experiments range from 15 to 2000 GeV/c in laboratory beam momentum and use $pi$$sup -$, $pi$$sup +$, p and anti p beams. (auth)

Kahn, S.

1975-01-01T23:59:59.000Z

174

Matter: the fundamental particles  

E-Print Network (OSTI)

"The largest particle physics centre in the world is located in Europe. It straddles the Franco-Swiss border, near Geneva. At CERN - the European Organisation for Nuclear Research , which is focused on the science of nuclear matter rather than on the exploitation of atomic energy - there are over 6 500 scientists." (1 page)

Landua, Rolf

2007-01-01T23:59:59.000Z

175

Role of particle conservation in self-propelled particle systems  

E-Print Network (OSTI)

Actively propelled particles undergoing dissipative collisions are known to develop a state of spatially distributed coherently moving clusters. For densities larger than a characteristic value clusters grow in time and form a stationary well-ordered state of coherent macroscopic motion. In this work we address two questions: (i) What is the role of the particles' aspect ratio in the context of cluster formation, and does the particle shape affect the system's behavior on hydrodynamic scales? (ii) To what extent does particle conservation influence pattern formation? To answer these questions we suggest a simple kinetic model permitting to depict some of the interaction properties between freely moving particles and particles integrated in clusters. To this end, we introduce two particle species: single and cluster particles. Specifically, we account for coalescence of clusters from single particles, assembly of single particles on existing clusters, collisions between clusters, and cluster disassembly. Coarse-graining our kinetic model, (i) we demonstrate that particle shape (i.e. aspect ratio) shifts the scale of the transition density, but does not impact the instabilities at the ordering threshold. (ii) We show that the validity of particle conservation determines the existence of a longitudinal instability, which tends to amplify density heterogeneities locally, and in turn triggers a wave pattern with wave vectors parallel to the axis of macroscopic order. If the system is in contact with a particle reservoir this instability vanishes due to a compensation of density heterogeneities.

Christoph A. Weber; Florian Throff; Erwin Frey

2013-01-31T23:59:59.000Z

176

Errata for the 1996 Review of Particle Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

6 Review of Particle Physics 6 Review of Particle Physics (Last changed September 25, 1997) : During the time between editions of the Review of Particle Physics and the Particle Physics Booklet, we often find a number of errata. We correct most errata on our WWW pages. If you should find errata that are not known to us, please send mail to pdg@lbl.gov. Unfortunately, the printer of the booklet did not maintain the standards of previous editions. In some cases, pages may be impossible to read due to improper cutting. Please contact us if your booklet has any of these pages and we will be happy to replace it. Another of the printing errors is the inaccuracy of the centimeter scale on p. 236. We apologize for the inconvenience of these problems. We present the following errata (most corrected on the WWW):

177

Particle measurement systems and methods  

SciTech Connect

A system according to one embodiment includes a light source for generating light fringes; a sampling mechanism for directing a particle through the light fringes; and at least one light detector for detecting light scattered by the particle as the particle passes through the light fringes. A method according to one embodiment includes generating light fringes using a light source; directing a particle through the light fringes; and detecting light scattered by the particle as the particle passes through the light fringes using at least one light detector.

Steele, Paul T. (Livermore, CA)

2011-10-04T23:59:59.000Z

178

Particle trajectories and acceleration during 3D fan reconnection  

E-Print Network (OSTI)

Context. The primary energy release in solar flares is almost certainly due to magnetic reconnection, making this a strong candidate as a mechanism for particle acceleration. While particle acceleration in 2D geometries has been widely studied, investigations in 3D are a recent development. Two main classes of reconnection regimes at a 3D magnetic null point have been identified: fan and spine reconnection Aims. Here we investigate particle trajectories and acceleration during reconnection at a 3D null point, using a test particle numerical code, and compare the efficiency of the fan and spine regimes in generating an energetic particle population. Methods. We calculated the time evolution of the energy spectra. We discuss the geometry of particle escape from the two configurations and characterise the trapped and escaped populations. Results. We find that fan reconnection is less efficent than spine reconnection in providing seed particles to the region of strong electric field where acceleration is possible. The establishment of a steady-state spectrum requires approximately double the time in fan reconnection. The steady-state energy spectrum at intermediate energies (protons 1 keV to 0.1 MeV) is comparable in the fan and spine regimes. While in spine reconnection particle escape takes place in two symmetric jets along the spine, in fan reconnection no jets are produced and particles escape in the fan plane, in a ribbon-like structure.

S. Dalla; P. K. Browning

2008-11-07T23:59:59.000Z

179

Particle Data Group - Authors  

NLE Websites -- All DOE Office Websites (Extended Search)

6 Edition and 2007 Web Update 6 Edition and 2007 Web Update (Click on Author Name to get Email address, phone numbers, etc.) RPP authors New authors of 2007 Web Update M. Antonelli, 102 H. Baer, 64 G. Bernardi, 103 M. Carena, 51 M.-C. Chen, 11 B. Dobrescu, 51 J.-F. Grivaz, 104 T. Gutsche, 105 J. Huston, 45 T. Junk, 51 C.-J. Lin, 1 H. Mahlke, 106 P. Mohr, 107 P. Nevski, 75 S. Rolli, 108 A. Romaniouk, 109 B. Seligman, 110 M. Shaevitz, 111 B. Taylor, 107 M. Titov, 56,112 G. Weiglein, 78 A. Wheeler, 69 Authors of the 2006 Review of Particle Physics W.-M. Yao et al. (Particle Data Group), J. Phys. G 33, 1 (2006) (bibtex format) Also see: PS format or PDF format. AUTHORS OF LISTINGS AND REVIEWS: (Click on Author Name to get Email address, phone numbers, etc.) RPP authors (RPP 2006)

180

Small Particles in Cirrus  

NLE Websites -- All DOE Office Websites (Extended Search)

Particles in Cirrus Particles in Cirrus Because the reflective properties of ice crystals in cirrus clouds can greatly influence the amount of solar energy that reaches the Earth, scientists use information about the shape and size of ice crystals as input to climate models. These data are obtained by satellite instruments, ground-based sensors, and research aircraft equipped with probes. However, notable discrepancies among these measurements have led to considerable uncertainty in how to represent these properties in climate models. From December 2009 through April 2010, the Atmospheric Radiation Measurement (ARM) Climate Research Facility will sponsor the use of an instrumented aircraft to obtain the most comprehensive set of measurements of ice crystals in cirrus clouds yet obtained. In conjunction with

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Particle detector spatial resolution  

DOE Patents (OSTI)

Method and apparatus for producing separated columns of scintillation layer material, for use in detection of X-rays and high energy charged particles with improved spatial resolution is disclosed. A pattern of ridges or projections is formed on one surface of a substrate layer or in a thin polyimide layer, and the scintillation layer is grown at controlled temperature and growth rate on the ridge-containing material. The scintillation material preferentially forms cylinders or columns, separated by gaps conforming to the pattern of ridges, and these columns direct most of the light produced in the scintillation layer along individual columns for subsequent detection in a photodiode layer. The gaps may be filled with a light-absorbing material to further enhance the spatial resolution of the particle detector. 12 figs.

Perez-Mendez, V.

1992-12-15T23:59:59.000Z

182

Particle Data Group  

NLE Websites -- All DOE Office Websites (Extended Search)

About PDG About PDG About the PDG PDG authors Order PDG products PDG citation Encoder tools Job at LBNL Contact Us Downloads Resources Errata Archives Atomic Nuclear Properties Online HEP Info Non-PDG Databases Durham-RAL databases Current experiments Guide to Data Partial-wave analyses Contact Us News The "Reviews, Tables, Plots" section has been updated. The next book edition is due in early summer 2014, and the booklet in late summer 2014. Funded By: US DOE US NSF CERN MEXT (Japan) INFN (Italy) MEC (Spain) IHEP & RFBR (Russia) Mirrors: USA (LBNL) Brazil CERN Indonesia Italy Japan (KEK) Russia (Novosibirsk) Russia (Protvino) UK (Durham) The Review of Particle Physics J. Beringer et al. (Particle Data Group), Phys. Rev. D86, 010001 (2012) and 2013 partial update for the 2014 edition.

183

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerating particles: Animation The above is an animation of the following concept: This is a test search string for google...

184

``Hot particle`` intercomparison dosimetry  

SciTech Connect

Dosimetry measurements of four ``hot particles`` were made at different density thickness values using five different methods. The hot particles had maximum dimensions of 650 {mu}m and maximum beta energies of 0.97, 046, 0.36 and 0.32 MeV. Absorbers were used to obtain the dose at different depths for each dosimeter. Measurements were made using exoelectron dosimeters, an extrapolation chamber, NE extremity tape dosimeters, Eberline RO-2 and RO-2A survey meters, and two sets of GafChromic dye film with each set read out at a different institution. From these results the dose was calculated averaged over 1 cm{sup 2} of tissue at 18, 70, 125, and 400 {mu}m depth. Comparisons of tissue-dose averaged over 1 cm{sup 2} for 18, 70 and 125 {mu}m depth based on interpolated measured values, were within 30% for the GafChromic dye film, extrapolation chamber, NE Extremity Tape dosimeters, and Eberline RO-2 and 2A survey meters except for the hot particle with 0.46 MeV maximum beta energy. The results for this source showed differences of up to 60%. The extrapolation chamber and NE Extremity Tape dosimeters under-responded for measurements at 400 {mu}m by about a factor of 2 compared with the Gaf Chromic dye films for two hot particles with maximum beta energy of 0.32 and 0.36 MeV which each emitted two 100% 1 MeV photons per disintegration. Tissue doses determined using exoelectron dosimeters were a factor of 2 to 5 less than those determined using other dosimeters, possibly due to failures of the equipment.

Kaurin, D.G.L.; Baum, J.W. [Brookhaven National Lab., Upton, NY (United States); Charles, M.W.; Darley, D.P.J. [Birmingham Univ. (United Kingdom); Durham, J.S. [Pacific Northwest Lab., Richland, WA (United States); Scannell, M.J. [Yankee Atomic Electric Co., Bolton, MA (United States); Soares, C.G. [National Inst. of Standards and Technology, Gaithersburg, MD (United States)

1996-06-01T23:59:59.000Z

185

Radiation in Particle Simulations  

SciTech Connect

Hot dense radiative (HDR) plasmas common to Inertial Confinement Fusion (ICF) and stellar interiors have high temperature (a few hundred eV to tens of keV), high density (tens to hundreds of g/cc) and high pressure (hundreds of megabars to thousands of gigabars). Typically, such plasmas undergo collisional, radiative, atomic and possibly thermonuclear processes. In order to describe HDR plasmas, computational physicists in ICF and astrophysics use atomic-scale microphysical models implemented in various simulation codes. Experimental validation of the models used to describe HDR plasmas are difficult to perform. Direct Numerical Simulation (DNS) of the many-body interactions of plasmas is a promising approach to model validation but, previous work either relies on the collisionless approximation or ignores radiation. We present four methods that attempt a new numerical simulation technique to address a currently unsolved problem: the extension of molecular dynamics to collisional plasmas including emission and absorption of radiation. The first method applies the Lienard-Weichert solution of Maxwell's equations for a classical particle whose motion is assumed to be known. The second method expands the electromagnetic field in normal modes (planewaves in a box with periodic boundary-conditions) and solves the equation for wave amplitudes coupled to the particle motion. The third method is a hybrid molecular dynamics/Monte Carlo (MD/MC) method which calculates radiation emitted or absorbed by electron-ion pairs during close collisions. The fourth method is a generalization of the third method to include small clusters of particles emitting radiation during close encounters: one electron simultaneously hitting two ions, two electrons simultaneously hitting one ion, etc. This approach is inspired by the virial expansion method of equilibrium statistical mechanics. Using a combination of these methods we believe it is possible to do atomic-scale particle simulations of fusion ignition plasmas including the important effects of radiation emission and absorption.

More, R; Graziani, F; Glosli, J; Surh, M

2010-11-19T23:59:59.000Z

186

Particle production at HERA  

E-Print Network (OSTI)

H1 has measured a number of different known particles and compared their production to QCD models and to other reactions such as N-N collisions. ZEUS has also measured the production of K0SK0S pairs with a view to searching for glueballs. Several resonances are seen which are glueball candidates. The results on the masses and widths are compared to other experiments.

Changyi Zhou

2009-05-30T23:59:59.000Z

187

Particles, superparticles, and twistors  

Science Conference Proceedings (OSTI)

The covariant Green-Schwarz action for a superstring has never been quantized covariantly. The physics behind this is discussed. We then consider the corresponding point-particle action in four dimensions, and write down a master action from which it can be obtained as a gauge choice: the ''space-time gauge.'' There is also a ''twistor gauge,'' in which covariant quantization is straightforward (as noted previously by Shirafuji).

Bengtsson, A.K.H.; Bengtsson, I.; Cederwall, M.; Linden, N.

1987-09-15T23:59:59.000Z

188

Dynamic radioactive particle source  

SciTech Connect

A method and apparatus for providing a timed, synchronized dynamic alpha or beta particle source for testing the response of continuous air monitors (CAMs) for airborne alpha or beta emitters is provided. The method includes providing a radioactive source; placing the radioactive source inside the detection volume of a CAM; and introducing an alpha or beta-emitting isotope while the CAM is in a normal functioning mode.

Moore, Murray E.; Gauss, Adam Benjamin; Justus, Alan Lawrence

2012-06-26T23:59:59.000Z

189

Collisional Particle Disks  

E-Print Network (OSTI)

We present a new, simple, fast algorithm to numerically evolve disks of inelastically colliding particles surrounding a central star. Our algorithm adds negligible computational cost to the fastest existing collisionless N-body codes, and can be used to simulate, for the first time, the interaction of planets with disks over many viscous times. Though the algorithm is implemented in two dimensions-i.e., the motions of bodies need only be tracked in a plane-it captures the behavior of fully three-dimensional disks in which collisions maintain inclinations that are comparable to random eccentricities. We subject the algorithm to a battery of tests for the case of an isolated, narrow, circular ring. Numerical simulations agree with analytic theory with regards to how particles' random velocities equilibrate; how the ring viscously spreads; and how energy dissipation, angular momentum transport, and material transport are connected. We derive and measure the critical value of the coefficient of restitution above which viscous stirring dominates inelastic damping and the particles' velocity dispersion runs away.

Yoram Lithwick; Eugene Chiang

2006-07-11T23:59:59.000Z

190

Find financing | ENERGY STAR Buildings & Plants  

NLE Websites -- All DOE Office Websites (Extended Search)

Find financing Find financing Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section Learn the benefits Get started Use Portfolio Manager Save energy Find financing Calculate returns on energy efficiency investments Rebates, incentives, and financing services Public sector financing options Earn recognition Communicate your success Find financing Postponing the installation of energy-saving equipment can be an expensive

191

Finding NIST Computer Security Pubs/800s  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Where do I find NIST Computer Security publications/800s? These are available at http://csrc.nist.gov/.

2012-01-24T23:59:59.000Z

192

Finding Inspiration in Spider Silk Fibers  

Science Conference Proceedings (OSTI)

Finding Inspiration in Argiope Trifasciata Spider Silk Fibers. Manuel Elices, Jos Prez-Rigueiro, Gustavo R. Plaza, and Gustavo V. Guinea...

193

Nano Particles Supercritical Fluid Process  

Scientists at Idaho National Laboratory have invented a new method of producing quantum particles of varying dimensions by employing supercritical ...

194

Apparatus for separating particles utilizing engineered acoustic contrast capture particles  

DOE Patents (OSTI)

An apparatus for separating particles from a medium includes a capillary defining a flow path therein that is in fluid communication with a medium source. The medium source includes engineered acoustic contrast capture particle having a predetermined acoustic contrast. The apparatus includes a vibration generator that is operable to produce at least one acoustic field within the flow path. The acoustic field produces a force potential minima for positive acoustic contrast particles and a force potential minima for negative acoustic contrast particles in the flow path and drives the engineered acoustic contrast capture particles to either the force potential minima for positive acoustic contrast particles or the force potential minima for negative acoustic contrast particles.

Kaduchak, Gregory (Los Alamos, NM); Ward, Michael D. (Los Alamos, NM)

2011-12-27T23:59:59.000Z

195

Particle production from Q-balls  

E-Print Network (OSTI)

Non topological solitons, Q-balls can arise in many particle theories with U(1) global symmetries. As was shown by Cohen et al. \\cite{Qballscohen}, if the corresponding scalar field couples to massless fermions, large Q-balls are unstable and evaporate, producing a fermion flux proportional to the Q-ball's surface. In this paper we analyse Q-ball instabilities as a function of Q-ball size ans fermion mass. In particular, we construct an exact quantum-mechanical description of the evaporating Q-ball. This new construction provides an alternative method to compute Q-Ball's evaporation rates. We shall also find the new expression for the upper bound on evaporation as a function of the produced fermion mass and study the effects of Q ball's size on particle production.

Stephen Clark

2005-10-06T23:59:59.000Z

196

Classification of Volatile Engine Particles  

Science Conference Proceedings (OSTI)

Volatile particles cannot be detected at the engine exhaust by an aerosol detector. They are formed when the exhaust is mixed with ambient air downstream. Lack of a precise definition of volatile engine particles has been an impediment to engine manufacturers and regulatory agencies involved in the development of an effective control strategy. It is beyond doubt that volatile particles from combustion sources contribute to the atmospheric particulate burden, and the effect of that contribution is a critical issue in the ongoing research in the areas of air quality and climate change. A new instrument, called volatile particle separator (VPS), has been developed. It utilizes a proprietary microporous metallic membrane to separate particles from vapors. VPS data were used in the development of a two-parameter function to quantitatively classify, for the first time, the volatilization behavior of engine particles. The value of parameter A describes the volatilization potential of an aerosol. A nonvolatile particle has a larger A-value than a volatile one. The value of parameter k, an effective evaporation energy barrier, is found to be much smaller for small engine particles than that for large engine particles. The VPS instrument provides a means beyond just being a volatile particle remover; it enables a numerical definition to characterize volatile engine particles.

Cheng, Mengdawn [ORNL

2013-01-01T23:59:59.000Z

197

The Universe Adventure - Fundamental Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

Fundamental Particles Fundamental Particles Chart of Fundamental Particles All matter in the universe is comprised of fundamental particles. So what exactly makes up this matter? All matter is made of fundamental particles that came into being at the birth of the Universe. Quarks experience the strong force which is carried by massless particles called gluons. They bond together in specific combinations to form protons, neutrons, and other hadrons. Leptons do not experience the strong force but may interact via the electromagnetic force, the weak force, or both. Anti-quarks and anti-leptons are exactly the same as their quark and lepton counterparts, but have an opposite charge. All massive particles are influenced by the force of gravity. Quark-Gluon Plasma: 10-12 Seconds After the Big Bang

198

SunShot Initiative: A Small-Particle Solar Receiver for High-Temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

A Small-Particle Solar Receiver A Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles to someone by E-mail Share SunShot Initiative: A Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles on Facebook Tweet about SunShot Initiative: A Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles on Twitter Bookmark SunShot Initiative: A Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles on Google Bookmark SunShot Initiative: A Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles on Delicious Rank SunShot Initiative: A Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles on Digg Find More places to share SunShot Initiative: A Small-Particle Solar Receiver for High-Temperature Brayton Power Cycles on AddThis.com...

199

SunShot Initiative: High-Temperature Falling-Particle Receiver  

NLE Websites -- All DOE Office Websites (Extended Search)

High-Temperature Falling-Particle High-Temperature Falling-Particle Receiver to someone by E-mail Share SunShot Initiative: High-Temperature Falling-Particle Receiver on Facebook Tweet about SunShot Initiative: High-Temperature Falling-Particle Receiver on Twitter Bookmark SunShot Initiative: High-Temperature Falling-Particle Receiver on Google Bookmark SunShot Initiative: High-Temperature Falling-Particle Receiver on Delicious Rank SunShot Initiative: High-Temperature Falling-Particle Receiver on Digg Find More places to share SunShot Initiative: High-Temperature Falling-Particle Receiver on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative

200

Floodplain Statement of Findings | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Floodplain Statement of Findings Floodplain Statement of Findings Floodplain Statement of Findings Loan Guarantee to AES Energy Storage, LLC Project Dyno Electric Grid Stability Advanced Battery Systems Project Dyno would provide ancillary services within the New York power market. The Project is composed of advanced lithium ion battery cells and power control technologies to store power to help maintain the stability of the electric power grid. The Project would be composed of ten fifty-three foot metal containers each housing bidirectional inverters and DC subsystems capable of 2MW of capacity. Floodplain Statement of Findings Department of Energy Loan Guarantee to AES Energy Storage, LLC Project Dyno Electric Grid Stability Advanced Battery Systems in Johnson City, NY More Documents & Publications

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Finding related papers in literature digital libraries  

Science Conference Proceedings (OSTI)

This paper is about searching literature digital libraries to find "related" publications of a given publication. Existing approaches do not take into account publication topics in the relatedness computation, allowing topic diffusion across query output ...

Nattakarn Ratprasartporn; Gultekin Ozsoyoglu

2007-09-01T23:59:59.000Z

202

An effective algorithm of motif finding problem  

Science Conference Proceedings (OSTI)

Identification of the short DNA sequence motif, which serves as binding targets for transcription factors, is a fundamental problem in both computer science and molecular biology. Especially, finding the subtle motifs with variable gaps is more challenging. ...

Yong Chen; Guojun Li

2008-05-01T23:59:59.000Z

203

Finding representative workloads for computer system design  

Science Conference Proceedings (OSTI)

This work explores how improved workload characterization can be used for a better selection of representative workloads within the computer system and processor design process. We find that metrics easily available in modern computer systems provide ...

Jan Lodewijk Bonebakker

2007-03-01T23:59:59.000Z

204

Finding of No Significant Impact (FONSI)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 March 2002 FINDING OF NO SIGNIFICANT IMPACT TRANSURANIC WASTE RETRIEVAL FROM THE 218-W-4B AND 218-W-4C LOW-LEVEL BURIAL GROUNDS HANFORD SITE, RICHLAND, WASHINGTON U.S. DEPARTMENT OF ENERGY March 2002 U.S. Department of Energy Finding of No Significant Impact 2 March 2002 This page intentionally left blank. U.S. Department of Energy Finding of No Significant Impact 3 March 2002 AGENCY: U.S. Department of Energy ACTION: Finding of No Significant Impact SUMMARY: The U.S. Department of Energy (DOE) has prepared an Environmental Assessment (EA), DOE/EA-1405, for retrieval of transuranic waste from the 218-W-4B and 218-W-4C low-level burial grounds located in the 200 West Area of the Hanford Site, Richland, Washington. Based on the

205

Visualizing Particle-in-Cell Simulation of Laser Wakefield Particle...  

NLE Websites -- All DOE Office Websites (Extended Search)

and assist in the planning of the next generation of particle accelerators and ultrafast applications in chemistry and biology. This image shows a horizontal slice through...

206

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

to detect an event, individual particles can be singled out from the multitudes for analysis. Following each event, computers collect and interpret the vast quantity of data...

207

Particle beam injection system  

SciTech Connect

This invention provides a poloidal divertor for stacking counterstreaming ion beams to provide high intensity colliding beams. To this end, method and apparatus are provided that inject high energy, high velocity, ordered, atomic deuterium and tritium beams into a lower energy, toroidal, thermal equilibrium, neutral, target plasma column that is magnetically confined along an endless magnetic axis in a strong restoring force magnetic field having helical field lines to produce counterstreaming deuteron and triton beams that are received bent, stacked and transported along the endless axis, while a poloidal divertor removes thermal ions and electrons all along the axis to increase the density of the counterstreaming ion beams and the reaction products resulting therefrom. By balancing the stacking and removal, colliding, strong focused particle beams, reaction products and reactions are produced that convert one form of energy into another form of energy.

Jassby, Daniel L. (Princeton, NJ); Kulsrud, Russell M. (Princeton, NJ)

1977-01-01T23:59:59.000Z

208

Particle Data Group - Authors  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle Data Group Associates and Advisors Particle Data Group Associates and Advisors Aguilar-Benitez, Amsler, Antonelli, Arguin, Armstrong, Artuso, Asner, Babu, Baer, Band, Barberio, Barnett, Battaglia, Bauer, Beringer, Bernardi, Bertl, Besson, Bichsel, Biebel, Bloch, Blucher, Blusk, Bunakov, Burchat, Cahn, Carena, Carone, Casas Serradilla, Casper, Cattai, Ceccucci, Chakraborty, Chen, Chivukula, Copic, Cousins, Cowan, Crawford, Dahl, Dalitz, D'Ambrosio, DeGouvea, DeGrand, Damour, Desler, Dissertori, Dobbs, Dobrescu, Donahue, Doser, Drees, Edwards,A, Edwards, Eidelman, Elvira, Erler, Ezhela, Fasso', Feng, Fetscher, Fields, Filimonov, Foster, Freedman, Froidevaux, Fukugita, Gaisser, Garren, Geer, Gerber, Gerbier, Gherghetta, Gibbons, Gilman, Giudice, Goldhaber, Goodman, Grab, Gritsan, Grivaz, Groom, Grünewald, Gurtu, Gutsche, Haber, Hagiwara, Hagmann, Hanhart, Harper , Hayes, Heltsley, Hernàndez-Rey, Hewett, Hikasa, Hinchliffe, Holder, Höcker, Hogan, Höhler, Holtkamp, Honscheid , Huston , Igo-Kemenes, Jackson, James, Jawahery, Johnson, Junk, Karlen, Kayser, Kirkby, Klein, Kleinknecht, Klempt, Knowles, Kolb, Kolda, Kowalewski, Kreitz, Kreps, Krusche, Kuyanov, Kwon, Lahav, Landua, Langacker , Lepage, Liddle, Ligeti, Lin, Liss, Littenberg, Liu, LoSecco, Lugovsky,K, Lugovsky,S, Lugovsky,V, Lynch, Lys, Mahlke, Mangano, Mankov, Manley, Mannel, Manohar, March-Russell, Marciano, Martin, Masoni, Matthews, Milstead, Miquel, Mönig, Mohr, Morrison, Murayama, Nakada, Nakamura, Narain, Nason, Navas, Nevski, Nicholson, Nir, Olive, Oyanagi, Pape, Patrignani, Peacock, Piepke, Porter, Prell, Punzi, Quadt, Quinn, Raby, Raffelt, Ratcliff, Razuvaev, Renk, Richardson, Roesler, Rolandi, Rolli, Romaniouk , Roos, Rosenberg, Rosner, Sachrajda, Sakai, Salam, Sanda, Sarkar, Sauli, Schaffner, Schindler, Schmitt, Schneider, Scott, Seligman, Shaevitz, Shrock, Silari, Skands, Smith, Sjöstrand, Smoot, Sokolosky, Spanier, Spieler, Spooner, Srednicki, Stahl, Stanev, Stone, Stone,S, Streitmatter, Sumiyoshi, Suzuki, Syphers, Tanabashi, Taylor, Terning, Titov, Tkachenko, Törnqvist, Tovey, Trilling, Trippe, Turner, Valencia, van Bibber, Vincter, Venanzoni, Vogel, Voss, Ward, Watari, Webber, Weiglein, Wells, Whalley, Wheeler, Wohl, Wolfenstein, Womersley, Woody, Workman, Yamamoto, Yao, Youssef, Zenin, Zhang, Zhu, Zyla

209

Photon and Charged Particle Data Center  

Science Conference Proceedings (OSTI)

Photon and Charged Particle Data Center. Summary: The Photon and Charged Particle Data Center has long been an ...

2013-02-26T23:59:59.000Z

210

ARM - Measurement - Cloud ice particle  

NLE Websites -- All DOE Office Websites (Extended Search)

ice particle ice particle ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud ice particle Particles made of ice found in clouds. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments MET : Surface Meteorological Instrumentation Field Campaign Instruments REPLICATOR : Balloon-borne Ice Crystal Replicator CPI : Cloud Particle Imager CVI-AIR : Counterflow Virtual Impactor LEARJET : Lear Jet PARTIMG : Particle imager UAV-PROTEUS-MICRO : Proteus Cloud Microphysics Instruments

211

Alternative Discrete Energy Solutions to the Free Particle Dirac Equation  

E-Print Network (OSTI)

The usual method of solving the free particle Dirac equation results in the so called continuum energy solutions. Here, we take a different approach and find a set of solutions with quantized energies which are proportional to the total angular momentum.

Thomas Edward Brennan

2011-10-27T23:59:59.000Z

212

Alternative Discrete Energy Solutions to the Free Particle Dirac Equation  

E-Print Network (OSTI)

The usual method of solving the free particle Dirac equation results in the so called continuum energy solutions. Here, we take a different approach and find a set of solutions with quantized energies which are proportional to the total angular momentum.

Brennan, Thomas Edward

2011-01-01T23:59:59.000Z

213

Finding scientific articles 1. Find a specific article using google scholar or  

E-Print Network (OSTI)

#12;Finding scientific articles 1. Find a specific article using google scholar or web of science articles 1. Find a specific article using google scholar or web of science by searching for author name using google scholar or web of science by searching for author name + title, year or journal name 2

Schweik, Charles M.

214

Thermophoresis of Brownian particles driven by coloured noise  

E-Print Network (OSTI)

The Brownian motion of microscopic particles is driven by the collisions with the molecules of the surrounding fluid. The noise associated with these collisions is not white, but coloured due, e.g., to the presence of hydrodynamic memory. The noise characteristic time scale is typically of the same order as the time over which the particle's kinetic energy is lost due to friction (inertial time scale). We demonstrate theoretically that, in the presence of a temperature gradient, the interplay between these two characteristic time scales can have measurable consequences on the particle long-time behaviour. Using homogenization theory, we analyse the infinitesimal generator of the stochastic differential equation describing the system in the limit where the two characteristic times are taken to zero; from this generator, we derive the thermophoretic transport coefficient, which, we find, can vary in both magnitude and sign, as observed in experiments. Furthermore, studying the long-term stationary particle dist...

Hottovy, Scott; Wehr, Jan

2012-01-01T23:59:59.000Z

215

Particle Dynamics And Emergent Gravity  

E-Print Network (OSTI)

The emergent gravity proposal is examined within the framework of noncommutative QED/gravity correspondence from particle dynamics point of view.

Amir H. Fatollahi

2008-05-08T23:59:59.000Z

216

Welcome to the Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

Sprachen: Espaol (USA) Espaol (Spain) Franaise Greek Italiano Polski Portugus Slovenska Deutsch Supported by US DOE and NSF Die Particle Data Group des Lawrence Berkeley...

217

Welcome to the Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

y: Espaol (USA) Espaol (Spain) Franaise Greek Italiano Polski Portugus Slovenska Supported by US DOE and NSF The Particle Data Group of Lawrence Berkeley National...

218

Recent particle searches at PEP  

Science Conference Proceedings (OSTI)

The subject of this talk will be the recent searches for new particles that have been conducted at PEP. In such a context

R. L. Messner

1984-01-01T23:59:59.000Z

219

Nuclear & Particle Physics, Astrophysics, Cosmology  

NLE Websites -- All DOE Office Websites (Extended Search)

reality environment. Nuclear and particle physics, applied physics Animation of new reactor concept for deep space exploration 4:32 Animation of new reactor concept for deep...

220

Find a Beamline | Advanced Photon Source  

NLE Websites -- All DOE Office Websites (Extended Search)

Find a Beamline Find a Beamline The Advanced Photon Source consists of 34 sectors; each sector contains one or more beamlines. There are several resources available to help you find information about APS sectors and beamlines. Maps: Interactive Map Clicking on the link above or the picture below will take you to a page where you can see which APS beamlines are operational and relevant to your scientific interests. sectors map thumb Beamlines Map Clicking on the link above or the picture below will take you to a detailed bird's eye view of every beamline at the APS. beamline map thumb Directories: Beamlines Directory The complete listing of all APS beamlines' contacts, specifications, and status. Techniques Directory An explanation of the various research techniques in use at the APS, and a

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

TE Connectivity Finds Answers in Tomography  

NLE Websites -- All DOE Office Websites (Extended Search)

TE Connectivity Finds Answers in TE Connectivity Finds Answers in Tomography TE Connectivity Finds Answers in Tomography Print Thursday, 22 August 2013 10:50 TE Connectivity is a world leader in connectivity-the $13 billion global company designs and manufactures more than 500,000 different electronic connectivity products for the automotive, energy, industrial, broadband communications, consumer device, healthcare, aerospace, and defense industries. TE Connectivity has a long-standing commitment to innovation and engineering excellence. Their products help address challenges arising from companies' need for energy efficiency, always-on communications, and ever-increasing productivity. Recently, a team led by TE's senior manager of materials development, Dr. Jerzy Gazda (at left), has been investigating how ALS tomography capabilities can help the company develop more efficient connectors.

222

Particle deposition in ventilation ducts  

SciTech Connect

Exposure to airborne particles is detrimental to human health and indoor exposures dominate total exposures for most people. The accidental or intentional release of aerosolized chemical and biological agents within or near a building can lead to exposures of building occupants to hazardous agents and costly building remediation. Particle deposition in heating, ventilation and air-conditioning (HVAC) systems may significantly influence exposures to particles indoors, diminish HVAC performance and lead to secondary pollutant release within buildings. This dissertation advances the understanding of particle behavior in HVAC systems and the fates of indoor particles by means of experiments and modeling. Laboratory experiments were conducted to quantify particle deposition rates in horizontal ventilation ducts using real HVAC materials. Particle deposition experiments were conducted in steel and internally insulated ducts at air speeds typically found in ventilation ducts, 2-9 m/s. Behaviors of monodisperse particles with diameters in the size range 1-16 {micro}m were investigated. Deposition rates were measured in straight ducts with a fully developed turbulent flow profile, straight ducts with a developing turbulent flow profile, in duct bends and at S-connector pieces located at duct junctions. In straight ducts with fully developed turbulence, experiments showed deposition rates to be highest at duct floors, intermediate at duct walls, and lowest at duct ceilings. Deposition rates to a given surface increased with an increase in particle size or air speed. Deposition was much higher in internally insulated ducts than in uninsulated steel ducts. In most cases, deposition in straight ducts with developing turbulence, in duct bends and at S-connectors at duct junctions was higher than in straight ducts with fully developed turbulence. Measured deposition rates were generally higher than predicted by published models. A model incorporating empirical equations based on the experimental measurements was applied to evaluate particle losses in supply and return duct runs. Model results suggest that duct losses are negligible for particle sizes less than 1 {micro}m and complete for particle sizes greater than 50 {micro}m. Deposition to insulated ducts, horizontal duct floors and bends are predicted to control losses in duct systems. When combined with models for HVAC filtration and deposition to indoor surfaces to predict the ultimate fates of particles within buildings, these results suggest that ventilation ducts play only a small role in determining indoor particle concentrations, especially when HVAC filtration is present. However, the measured and modeled particle deposition rates are expected to be important for ventilation system contamination.

Sippola, Mark R.

2002-09-01T23:59:59.000Z

223

Single Particle Difraction at FLASH  

SciTech Connect

Single-pulse coherent diffraction patterns have been collected from randomly injected single particles with a soft X-ray free-electron laser (FEL). The intense focused FEL pulse gives a high-resolution low-noise coherent diffraction pattern of the object before that object turns into a plasma and explodes. A diffraction pattern of a single particle will only be recorded when the particle arrival into the FEL interaction region coincides with FEL pulse arrival and detector integration. The properties of the experimental apparatus coinciding with these three events set the data acquisition rate. For our single particle FLASH diffraction imaging experiments: (1) an aerodynamic lens stack prepared a particle beam that consisted of particles moving at 150-200 m/s positioned randomly in space and time, (2) the 10 fs long FEL pulses were delivered at a fixed rate, and (3) the detector was set to integrate and readout once every two seconds. The effect of these experimental parameters on the rate of data acquisition using randomly injected particles will be discussed. Overall, the ultrashort FEL pulses do not set the limit of the data acquisition, more important is the effective interaction time of the particle crossing the FEL focus, the pulse sequence structure and the detector readout rate. Example diffraction patterns of randomly injected ellipsoidal iron oxide nanoparticles in different orientations are presented. This is the first single particle diffraction data set of identical particles in different orientations collected on a shot-to-shot basis. This data set will be used to test algorithms for recovering 3D structure from single particle diffraction.

Bogan, M.; Boutet, S.; Starodub, Dmitri; Decorwin-Martin, Philippe; /SLAC; Chapman, H.; Bajt, S.; Schulz, J.; /DESY; Hajdu, Janos; Seibert, M.M.; Iwan, Bianca; Timneanu, Nicusor; /Uppsala U.; Marchesini, Stefano; /LBL, Berkeley; Barty, Anton; Benner, W.Henry; Frank, Matthias; Hau-Riege, Stefan P.; Woods, Bruce; /LLNL, Livermore; Rohner, Urs; /Tofwerk AG, Thun

2010-06-11T23:59:59.000Z

224

Finding and understanding bugs in C compilers  

Science Conference Proceedings (OSTI)

Compilers should be correct. To improve the quality of C compilers, we created Csmith, a randomized test-case generation tool, and spent three years using it to find compiler bugs. During this period we reported more than 325 previously unknown bugs ... Keywords: automated testing, compiler defect, compiler testing, random program generation, random testing

Xuejun Yang; Yang Chen; Eric Eide; John Regehr

2011-06-01T23:59:59.000Z

225

Compressing tags to find interesting media groups  

Science Conference Proceedings (OSTI)

On photo sharing websites like Flickr and Zooomr, users are offered the possibility to assign tags to their uploaded pictures. Using these tags to find interesting groups of semantically related pictures in the result set of a given query is a problem ... Keywords: compression, tags

Matthijs van Leeuwen; Francesco Bonchi; Brkur Sigurbjrnsson; Arno Siebes

2009-11-01T23:59:59.000Z

226

Atlas Finding Aid Contents/Index  

E-Print Network (OSTI)

Atlas Finding Aid Contents/Index A (1) City & State Atlas A (2) Astronomy Atlas A (3) U.S. Atlas A (8) Geologic Atlases A (9) Environment / Forest & Desert A (10) Historic Atlases A (11) World Atlases A (12) Canada and Russia A (13) Europe and the Middle East A (1) City & State Atlas 1. A (1) ALASKA

Ward, Karen

227

Finding all justifications of OWL DL entailments  

Science Conference Proceedings (OSTI)

Finding the justifications of an entailment (that is, all the minimal set of axioms sufficient to produce an entailment) has emerged as a key inference service for the Web Ontology Language (OWL). Justifications are essential for debugging unsatisfiable ... Keywords: OWL ontology explanation, debugging, justifications

Aditya Kalyanpur; Bijan Parsia; Matthew Horridge; Evren Sirin

2007-11-01T23:59:59.000Z

228

Finding Interesting Correlations with Conditional Heavy Hitters  

E-Print Network (OSTI)

Finding Interesting Correlations with Conditional Heavy Hitters Katsiaryna Mirylenka, Themis Srivastava AT&T Labs, Florham Park, NJ, USA {graham, divesh}@research.att.com Abstract-- The notion of heavy of Conditional Heavy Hitters to identify such items, with applications in network monitoring, and Markov chain

Palpanas, Themis

229

Search for a dark matter particle in high energy cosmic rays  

E-Print Network (OSTI)

Existing data hints that high energy cosmic ray experiments may offer the most promissing shot at finding a dark matter particle. A search in the PeV mass range is suggested, where the discovery of such a particle might help explain the GZK cutoff violation data.

Yukio Tomozawa

2008-04-09T23:59:59.000Z

230

Particle simulations of space weather  

Science Conference Proceedings (OSTI)

We review the application of particle simulation techniques to the full kinetic study of space weather events. We focus especially on the methods designed to overcome the difficulties created by the tremendous range of time and space scales present in ... Keywords: Adaptive, Implicit, Particle-in-cell, Space weather

Giovanni Lapenta

2012-02-01T23:59:59.000Z

231

Cerenkov radiation of spinning particle  

E-Print Network (OSTI)

The Cerenkov radiation of a neutral particle with magnetic moment is considered, as well as the spin-dependent contribution to the Cerenkov radiation of a charged spinning particle. The corresponding radiation intensity is obtained for an arbitrary value of spin and for an arbitrary spin orientation with respect to velocity.

I. B. Khriplovich

2008-08-11T23:59:59.000Z

232

Long range alpha particle detector  

DOE Patents (OSTI)

An alpha particle detector capable of detecting alpha radiation from distant sources. A high voltage is generated near a conductive mesh while a fan draws air containing air molecules ionized by alpha particles across the mesh. The current in the mesh can be detected and used for measurement or alarm. The detector can be used for area, personnel and equipment monitoring.

Wolf, M.A.; McAdtee, J.L. III; Unruh, W.P.; Cucchiadra, A.L.; Huchton, R.L.

1990-03-13T23:59:59.000Z

233

ARM - Measurement - Aerosol particle size  

NLE Websites -- All DOE Office Websites (Extended Search)

particle size particle size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol particle size Linear size (e.g. radius or diameter) of an aerosol particle. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. Field Campaign Instruments AEROSMASSSPEC : Aerosol Mass Spectrometer CPI : Cloud Particle Imager DRI-GND : Desert Research Institute Ground-Based Aerosol Instruments DRUM-AEROSOL : Drum Aerosol Sampler AEROSOL-TOWER-EML : EML Tower based Aerosol Measurements

234

Particle beam fusion  

SciTech Connect

Today, in keeping with Sandia Laboratories` designation by the Department of Energy as the lead laboratory for the pulsed power approach to fusion, its efforts include major research activities and the construction of new facilities at its Albuquerque site. Additionally, in its capacity as lead laboratory, Sandia coordinates DOE-supported pulsed power fusion work at other government operated laboratories, with industrial contractors, and universities. The beginning of Sandia`s involvement in developing fusion power was an outgrowth of its contributions to the nation`s nuclear weapon program. The Laboratories` work in the early 1960`s emphasized the use of pulsed radiation environments to test the resistance of US nuclear weapons to enemy nuclear bursts. A careful study of options for fusion power indicated that Sandia`s expertise in the pulsed power field could provide a powerful match to ignite fusion fuel. Although creating test environments is an achieved goal of Sandia`s overall program, this work and other military tasks protected by appropriate security regulations will continue, making full use of the same pulsed power technology and accelerators as the fusion-for-energy program. Major goals of Sandia`s fusion program including the following: (1) complete a particle accelerator to deliver sufficient beam energy for igniting fusion targets; (2) obtain net energy gain, this goal would provide fusion energy output in excess of energy stored in the accelerator; (3) develop a technology base for the repetitive ignition of pellets in a power reactor. After accomplishing these goals, the technology will be introduced to the nation`s commercial sector.

1980-12-31T23:59:59.000Z

235

BOOMERanG Analysis Finds Flat Universe  

NLE Websites -- All DOE Office Websites (Extended Search)

BOOMERanG Analysis BOOMERanG Analysis Finds Flat Universe BOOMERanG Analysis Finds Flat Universe NERSC's Mcurie System Helps Uncover Evidence of 'Cosmological Constant' Proposed, Rejected by Einstien December 12, 1999 Newly released data from the 1997 North American test flight of BOOMERanG, which mapped anisotropies in the cosmic microwave background radiation (CMB) in a narrow strip of sky, show a pronounced peak in the CMB "power spectrum" at an angular scale of about one degree, strong evidence that the universe is flat. Analyzed at the Department of Energy's National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory, the new data also suggest the existence of a cosmological constant, a form of countergravitational "dark energy" thought to fill the universe.

236

Finding cycles and trees in sublinear time.  

SciTech Connect

We present sublinear-time (randomized) algorithms for finding simple cycles of length at least k {ge} 3 and tree-minors in bounded-degree graphs. The complexity of these algorithms is related to the distance of the graph from being C{sub k}-minor-free (resp., free from having the corresponding tree-minor). In particular, if the graph is far (i.e., {Omega}(1)-far) from being cycle-free, i.e. if one has to delete a constant fraction of edges to make it cycle-free, then the algorithm finds a cycle of polylogarithmic length in time {tilde O}({radical}N), where N denotes the number of vertices. This time complexity is optimal up to polylogarithmic factors. The foregoing results are the outcome of our study of the complexity of one-sided error property testing algorithms in the bounded-degree graphs model. For example, we show that cycle-freeness of N-vertex graphs can be tested with one-sided error within time complexity {tilde O}(poly(1/{epsilon}) {center_dot} {radical}N). This matches the known {Omega}({radical}N) query lower bound, and contrasts with the fact that any minor-free property admits a two-sided error tester of query complexity that only depends on the proximity parameter {epsilon}. For any constant k {ge} 3, we extend this result to testing whether the input graph has a simple cycle of length at least k. On the other hand, for any fixed tree T, we show that T -minor-freeness has a one-sided error tester of query complexity that only depends on the proximity parameter {epsilon}. Our algorithm for finding cycles in bounded-degree graphs extends to general graphs, where distances are measured with respect to the actual number of edges. Such an extension is not possible with respect to finding tree-minors in o({radical}N) complexity.

Czumaj, Artur; Goldreich, Oded; Seshadhri, Comandur; Sohler, Christian; Shapira, Asaf; Ron, Dana

2010-10-01T23:59:59.000Z

237

Particle injector for fluid systems  

DOE Patents (OSTI)

A particle injector device provides injection of particles into a liquid stream. The device includes a funnel portion comprising a conical member having side walls tapering from a top opening (which receives the particles) down to a relatively smaller exit opening. A funnel inlet receives a portion of the liquid stream and the latter is directed onto the side walls of the conical member so as to create a cushion of liquid against which the particles impact. A main section of the device includes an inlet port in communication with the exit opening of the funnel portion. A main liquid inlet receives the main portion of the liquid stream at high pressure and low velocity and a throat region located downstream of the main liquid inlet accelerates liquid received by this inlet from the low velocity to a higher velocity so as to create a low pressure area at the exit opening of the funnel portion. An outlet opening of the main section enables the particles and liquid stream to exit from the injector device. This invention is particularly concerned with particle injection in connection with the calibration of inline optical particle counters.

Ruch, J.F.

1996-12-31T23:59:59.000Z

238

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

each other. The advantage of this arrangement is that both beams have significant kinetic energy, so a collision between them is more likely to produce a higher mass particle...

239

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

at those places where particle beams are made to cross. On the other hand, linear accelerators are much easier to build than circular accelerators because they don't need the...

240

Transverse-structure electrostatic charged particle beam lens  

DOE Patents (OSTI)

Electrostatic particle-beam lenses using a concentric co-planar array of independently biased rings can be advantageous for some applications. Traditional electrostatic lenses often consist of axial series of biased rings, apertures, or tubes. The science of lens design has devoted much attention to finding axial arrangements that compensate for the substantial optical aberrations of the individual elements. Thus, as with multi-element lenses for light, a multi-element charged-particle lens can have optical behavior that is far superior to that of the individual elements. Transverse multiple-concentric-ring lenses achieve high performance, while also having advantages in terms of compactness and optical versatility. 7 figs.

Moran, M.J.

1998-10-13T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Transverse-structure electrostatic charged particle beam lens  

DOE Patents (OSTI)

Electrostatic particle-beam lenses using a concentric co-planar array of independently biased rings can be advantageous for some applications. Traditional electrostatic lenses often consist of axial series of biased rings, apertures, or tubes. The science of lens design has devoted much attention to finding axial arrangements that compensate for the substantial optical aberrations of the individual elements. Thus, as with multi-element lenses for light, a multi-element charged-particle lens can have optical behavior that is far superior to that of the individual elements. Transverse multiple-concentric-ring lenses achieve high performance, while also having advantages in terms of compactness and optical versatility.

Moran, Michael J. (Pleasanton, CA)

1998-01-01T23:59:59.000Z

242

Particle Filtering in Geophysical Systems  

Science Conference Proceedings (OSTI)

The application of particle filters in geophysical systems is reviewed. Some background on Bayesian filtering is provided, and the existing methods are discussed. The emphasis is on the methodology, and not so much on the applications themselves. ...

Peter Jan van Leeuwen

2009-12-01T23:59:59.000Z

243

High Speed Particle Image Velocimetry  

This patent application discloses a novel method to simultaneously track the motion of high numbers of object images under extreme, high concen-tration conditions. Although the software is designed to simultaneously track large numbers of particle ...

244

Particle Physics: a Progress Report  

E-Print Network (OSTI)

We present a concise review of where we stand in particle physics today. First we discuss QCD, then the electroweak sector and finally the motivations and the avenues for new physics beyond the Standard Model.

Guido Altarelli

2006-09-11T23:59:59.000Z

245

Study of heavy flavored particles  

Science Conference Proceedings (OSTI)

This report discusses progress on the following topics: time-of- flight system; charmed baryon production and decays; D decays to baryons; measurement of sigma plus particles magnetic moments; and strong interaction coupling. (LSP)

Not Available

1991-01-01T23:59:59.000Z

246

Health benefits of particle filtration  

NLE Websites -- All DOE Office Websites (Extended Search)

Health benefits of particle filtration Health benefits of particle filtration Title Health benefits of particle filtration Publication Type Journal Article Year of Publication 2013 Authors Fisk, William J. Journal Indoor Air Date Published 02/12/2013 Abstract The evidence of health benefits of particle filtration in homes and commercial buildings is reviewed. Prior reviews of papers published before 2000 are summarized. The results of 16 more recent intervention studies are compiled and analyzed. Also reviewed are four studies that modeled health benefits of using filtration to reduce indoor exposures to particles from outdoors. Prior reviews generally concluded that particle filtration is, at best, a source of small improvements in allergy and asthma health effects; however, many early studies had weak designs. A majority of recent intervention studies employed strong designs and more of these studies report statistically significant improvements in health symptoms or objective health outcomes, particularly for subjects with allergies or asthma. The percentage improvement in health outcomes is typically modest, e.g., 7% to 25%. Delivery of filtered air to the breathing zone of sleeping allergic or asthmatic persons may be more consistently effective in improving health than room air filtration. Notable are two studies that report statistically significant improvements, with filtration, in markers that predict future adverse coronary events. From modeling, the largest potential benefits of indoor particle filtration may be reductions in morbidity and mortality from reducing indoor exposures to particles from outdoor air. Published 2013. This article is a U.S. Government work and is in the public domain in the USA.

247

Particle Production in Matrix Cosmology  

E-Print Network (OSTI)

We consider cosmological particle production in 1+1 dimensional string theory. The process is described most efficiently in terms of anomalies, but we also discuss the explicit mode expansions. In matrix cosmology the usual vacuum ambiguity of quantum fields in time-dependent backgrounds is resolved by the underlying matrix model. This leads to a finite energy density for the "in" state which cancels the effect of anomalous particle production.

Sumit R. Das; Joshua L. Davis; Finn Larsen; Partha Mukhopadhyay

2004-03-28T23:59:59.000Z

248

Long range alpha particle detector  

DOE Patents (OSTI)

An alpha particle detector capable of detecting alpha radiation from distant sources. In one embodiment, a high voltage is generated in a first electrically conductive mesh while a fan draws air containing air molecules ionized by alpha particles through an air passage and across a second electrically conductive mesh. The current in the second electrically conductive mesh can be detected and used for measurement or alarm. The detector can be used for area, personnel and equipment monitoring.

MacArthur, Duncan W. (Los Alamos, NM); Wolf, Michael A. (Los Alamos, NM); McAtee, James L. (Los Alamos, NM); Unruh, Wesley P. (Los Alamos, NM); Cucchiara, Alfred L. (Los Alamos, NM); Huchton, Roger L. (Los Alamos, NM)

1993-01-01T23:59:59.000Z

249

Long range alpha particle detector  

DOE Patents (OSTI)

An alpha particle detector capable of detecting alpha radiation from distant sources. In one embodiment, a high voltage is generated in a first electrically conductive mesh while a fan draws air containing air molecules ionized by alpha particles through an air passage and across a second electrically conductive mesh. The current in the second electrically conductive mesh can be detected and used for measurement or alarm. The detector can be used for area, personnel and equipment monitoring.

MacArthur, D.W.; Wolf, M.A.; McAtee, J.L.; Unruh, W.P.; Cucchiara, A.L.; Huchton, R.L.

1993-02-02T23:59:59.000Z

250

Settling of Particles beneath Water Waves  

Science Conference Proceedings (OSTI)

Considered here is the motion of small particles beneath irrotational water waves. The added mass and inertial forces are shown to be an important role in the mean transport of particles. To leading order, particles are transported with a mean ...

Ian Eames

2008-12-01T23:59:59.000Z

251

Airplane Instrument to Detect Ice Particles  

Science Conference Proceedings (OSTI)

A simple instrument that detects ice particles has been developed for use in airplane studies of thunderstorms. Although sophisticated instruments are available for imaging atmospheric ice particles, the spatial resolution of the particle ...

J. J. Jones; C. Grotbeck; B. Vonnegut

1989-08-01T23:59:59.000Z

252

Dispersion of Heavy Particles by Turbulent Motion  

Science Conference Proceedings (OSTI)

Accurate prediction of heavy particle dispersion in turbulent flows requires a simultaneous consideration of particle's inertia and particle's drift velocity. A mathematically simple and physically comprehensive analysis was developed to solve ...

Lian-Ping Wang; Davd E. Stock

1993-07-01T23:59:59.000Z

253

Particle analysis in an acoustic cytometer  

SciTech Connect

The present invention is a method and apparatus for acoustically manipulating one or more particles. Acoustically manipulated particles may be separated by size. The particles may be flowed in a flow stream and acoustic radiation pressure, which may be radial, may be applied to the flow stream. This application of acoustic radiation pressure may separate the particles. In one embodiment, the particles may be separated by size, and as a further example, the larger particles may be transported to a central axis.

Kaduchak, Gregory; Ward, Michael D

2012-09-18T23:59:59.000Z

254

Inquiring Minds - Questions About Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Forces and Interactions Forces and Interactions Strong, weak, electromagnetic and gravitational, particle-wave dualism Photons in Electromagnetic Interactions How does the exchange of virtual photons as per QED explain the electrostatic attraction of particles of opposite charge? What is gravity? Is gravity a particle or a wave? Is the concept of gravity the same as a subatomic Graviton? Can it be a particle or a wave? Or both? Electro-magnet I need to find out why the current effects the strength of an electro-magnet. Light emitted by particles "What is in the area between sub atomic particles? Does this area when accelerated give off more light or does it get darker? If you were to accelerate a flashlight would the electron flow through the filament slow down? Can we determine how fast something is traveling by the amount of

255

Phase dynamics and particle production in preheating  

Science Conference Proceedings (OSTI)

We study a simple model of a massive inflaton field {phi} coupled to another scalar field {chi} with interaction term g{sup 2}{phi}{sup 2}{chi}{sup 2}. We use the theory developed by Kofman et al. [L. Kofman, A. D. Linde, and A. A. Starobinsky, Phys. Rev. D 56, 3258 (1997).] for the first stage of preheating to give a full description of the dynamics of the {chi} field modes, including the behavior of the phase, in terms of the iteration of a simple family of circle maps. The parameters of this family of maps are a function of time when expansion of the Universe is taken into account. With this more detailed description, we obtain a systematic study of the efficiency of particle production as a function of the inflaton field and coupling parameters, and we find that for g < or approx. 3x10{sup -4} the broad resonance ceases during the first stage of preheating.

Charters, T. [Departamento de Mecanica/Seccao de Matematica, Instituto Superior de Engenharia de Lisboa, Rua Conselheiro Emidio Navarro, 1, P-1949-014 Lisbon (Portugal) and Centro de Fisica Teorica e Computacional da Universidade de Lisboa, Avenida Professor Gama Pinto 2, P-1649-003 Lisbon (Portugal); Nunes, A.; Mimoso, J.P. [Departamento de Fisica, Faculdade de Ciencias da Universidade de Lisboa and Centro de Fisica Teorica e Computacional da Universidade de Lisboa, Avenida Professor Gama Pinto 2, P-1649-003 Lisbon (Portugal)

2005-04-15T23:59:59.000Z

256

Particle Data Group - Authors  

NLE Websites -- All DOE Office Websites (Extended Search)

8 Edition 8 Edition C. Amsler et al. (Particle Data Group), Physics Letters B667, 1 (2008) Also see: PDF format. AUTHORS: (Click on Author Name to get Email address, phone numbers, etc.) RPP authors C. Amsler, 1 M. Doser, 2 M. Antonelli, 3 D. Asner, 4 K.S. Babu, 5 H. Baer, 6 H.R. Band, 7 R.M. Barnett, 8 J. Beringer, 8 E. Bergren, G. Bernardi, 9 W. Bertl, 10 H. Bichsel, 11 O. Biebel, 12 P. Bloch, 2 E. Blucher, 13 S. Blusk, 14 R.N. Cahn, 8 M. Carena, 15,13,16 C. Caso, 17,* A. Ceccucci, 2 D. Chakraborty, 18 M.-C. Chen, 19 R.S. Chivukula, 20 G. Cowan, 21 O. Dahl, 8 G. D'Ambrosio, 22 T. Damour, 23 A. de Gouvea, 24 T. DeGrand, 25 B. Dobrescu, 15 M. Drees, 26 A. Edwards, 27 S. Eidelman, 28 V.D. Elvira, 15 J. Erler, 29 V.V. Ezhela, 30 J.L. Feng, 19 W. Fetscher, 31 B.D. Fields, 32 B. Foster, 33 T.K. Gaisser, 34 L. Garren, 15 H.-J. Gerber, 31 G. Gerbier, 35 T. Gherghetta, 36 G.F. Giudice, 2 M. Goodman, 37 C. Grab, 31 A.V. Gritsan, 38 J.-F. Grivaz, 39 D.E. Groom, 8 M. Grünewald, 40 A. Gurtu, 41,2 T. Gutsche, 42 H.E. Haber, 43 K. Hagiwara, 44 C. Hagmann, 45 K.G. Hayes, 46 J.J. Hernández-Rey, 47,¶ K. Hikasa, 48 I. Hinchliffe, 8 A. Höcker, 2 J. Huston, 20 P. Igo-Kemenes, 49 J.D. Jackson, 8 K.F. Johnson, 6 T. Junk, 15 D. Karlen, 50 B. Kayser, 15 D. Kirkby, 19 S.R. Klein, 51 I.G. Knowles, 52 C. Kolda, 53 R.V. Kowalewski, 50 P. Kreitz, 54 B. Krusche, 55 Yu.V. Kuyanov, 30 Y. Kwon, 56 O. Lahav, 57 P. Langacker, 58 A. Liddle, 59 Z. Ligeti, 8 C.-J. Lin, 8 T.M. Liss, 60 L. Littenberg, 61 J.C. Liu, 54 K.S. Lugovsky, 30 S.B. Lugovsky, 30 H. Mahlke, 62 M.L. Mangano, 2 T. Mannel, 63 A.V. Manohar, 64 W.J. Marciano, 61 A.D. Martin, 65 A. Masoni, 66 D. Milstead, 67 R. Miquel, 68 K. Mönig, 69 H. Murayama, 70,71,8 K. Nakamura, 44 M. Narain, 72 P. Nason, 73 S. Navas, 74,¶ P. Nevski, 61 Y. Nir, 75 K.A. Olive, 76 L. Pape, 31 C. Patrignani, 17 J.A. Peacock, 52 A. Piepke, 77 G. Punzi, 78 A. Quadt, 79, S. Raby, 80 G. Raffelt, 81 B.N. Ratcliff, 54 B. Renk, 82 P. Richardson, 65 S. Roesler, 2 S. Rolli, 83 A. Romaniouk, 84 L.J. Rosenberg, 11 J.L. Rosner, 13 C.T. Sachrajda, 85 Y. Sakai, 44 S. Sarkar, 86 F. Sauli, 2 O. Schneider, 87 D. Scott, 88 B. Seligman, 89 M. Shaevitz, 90 T. Sjöstrand, 91 J.G. Smith, 25 G.F. Smoot, 8 S. Spanier, 54 H. Spieler, 8 A. Stahl, 92 T. Stanev, 34 S.L. Stone, 14 T. Sumiyoshi, 93 M. Tanabashi, 94 J. Terning, 95 M. Titov, 96 N.P. Tkachenko, 30 N.A. Törnqvist, 97 D. Tovey, 98 G.H. Trilling, 8 T.G. Trippe, 8 G. Valencia, 99 K. van Bibber, 45 M.G. Vincter, 4 P. Vogel, 100 D.R. Ward, 101 T. Watari, 102 B.R. Webber, 101 G. Weiglein, 65 J.D. Wells, 103 M. Whalley, 65 A. Wheeler, 54 C.G. Wohl, 8 L. Wolfenstein, 104 J. Womersley, 105 C.L. Woody, 61 R.L. Workman, 106 A. Yamamoto, 44 W. -M. Yao, 8 O.V. Zenin, 30 J. Zhang, 107 R.-Y. Zhu 108 P.A. Zyla 8

257

Segregation of granular particles in suspension flow  

E-Print Network (OSTI)

An experiment was conducted to investigate the development of longitudinal stripes of granular particles due to instabilities in particle suspension flow. Research was conducted to characterize environmental phenomena ...

Tsay, Jessica, 1983-

2004-01-01T23:59:59.000Z

258

The Particle Adventure | What is fundamental? | Fundamental  

NLE Websites -- All DOE Office Websites (Extended Search)

Discovery of the Higgs Boson > The Higgs Boson decays into... The Higgs Boson decays into other particles Higgs bosons decay into other particles almost instantly after they are...

259

Advanced flow lithography and barcoded particles  

E-Print Network (OSTI)

Anisotropic multifunctional particles have drawn much attention, leading to wide ranges of applications from biomedical areas to electronics. Despite their enormous potentials, particles with geometrically and chemically ...

Bong, Ki Wan

2012-01-01T23:59:59.000Z

260

Slow Waveguide Structures for Particle Accelerators  

A waveguide design that can save time and money in the construction and tuning ofa particle accelerator was developed by ORNL researchers. Particle ...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Carbonaceous Aerosol Study Using Advanced Particle Instrumentation  

E-Print Network (OSTI)

Advanced Particle Instrumentation A Dissertation submittedUsing Advanced Particle Instrumentation by Li Qi Doctor ofinto the online instrumentation. In brief, an isokinetic

Qi, Li

2010-01-01T23:59:59.000Z

262

Energy Loss of a Heavy Particle near 3D Charged Rotating Hairy Black Hole  

E-Print Network (OSTI)

In this paper we consider charged rotating black hole in 3 dimensions with an scalar charge and discuss about energy loss of heavy particle moving near the black hole horizon. We also study quasi-normal modes and find dispersion relations. We find that the effect of scalar charge and electric charge is increasing energy loss.

Jalil Naji

2014-01-17T23:59:59.000Z

263

Controlled particle transport in a plasma chamber with striped electrode  

SciTech Connect

The controlled transport of micrometer size dust particles in a parallel-plate radio frequency discharge has been investigated. The lower stainless steel electrode consisted of 100 independently controllable electrical metal stripes. The voltage signals on these stripes were modulated, causing traveling plasma sheath distortions. Because the particles trapped in local potential wells moved according to the direction of the distortion, the transport velocity could be actively controlled by adjusting frequencies and phase shifts of the applied periodic voltage signals. To investigate the detailed principle of this transport, molecular dynamic simulations was performed to reproduce the observations with the plasma background conditions calculated by separated particle-in-cell simulations for the experimental parameters. The findings will help develop novel technologies for investigating large-scale complex plasma systems and techniques for achieving clean environments in plasma processing reactors.

Jiang Ke; Li Yangfang; Shimizu, T.; Konopka, U.; Thomas, H. M.; Morfill, G. E. [Max-Planck-Institute for Extraterrestrial Physics, 85748 Garching (Germany)

2009-12-15T23:59:59.000Z

264

Quantum Energy Teleportation between Spin Particles in Thermal Equilibrium  

E-Print Network (OSTI)

Quantum energy teleportation is the transfer of energy between two physically separated, but quantum correlated, sites, accomplished without an external energy carrier, using a three-step LOCC (local operations and classical communication) protocol. We apply this LOCC teleportation protocol to a Heisenberg spin particle pair initially in a quantum thermal state, making temperature an explicit parameter. The thermal states of the spin pair are quantum correlated (entangled or otherwise) at all temperatures. We find that energy teleportation is possible at any temperature, even at temperatures above the threshold where the particles' entanglement vanishes. This shows for thermal spin states that entanglement is not fundamentally necessary for energy teleportation; quantum correlation other than entanglement can suffice. This is a new instance in which quantum dissonance (quantum correlation without entanglement) is seen to act as a quantum resource. We compare energy teleportation to particle B with direct loca...

Frey, Michael

2013-01-01T23:59:59.000Z

265

LLNL scientists find precipitation, global warming link  

NLE Websites -- All DOE Office Websites (Extended Search)

4 4 For immediate release: 11/11/2013 | NR-13-11-04 Lawrence Livermore scientists have found that observed changes in global precipitation are directly affected by human activities. LLNL scientists find precipitation, global warming link Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov LIVERMORE, Calif. -- The rain in Spain may lie mainly on the plain, but the location and intensity of that rain is changing not only in Spain but around the globe. A new study by Lawrence Livermore National Laboratory scientists shows that observed changes in global (ocean and land) precipitation are directly affected by human activities and cannot be explained by natural variability alone. The research appears in the Nov. 11 online edition of the Proceedings of the National Academy of Sciences.

266

CLASS DEVIATION FINDINGS AND DETERMINATION Trade Agreements  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Trade Agreements Trade Agreements FAR 25.402(b) Findings 1. On December 29,2009, the United States Trade Representative (USTR) established new procurement thresholds for the various Trade Agreements identified at FAR 25.402(b). The revised thresholds were effective on January 1,2010. 2. Civilian Agency Acquisition Letter 2010-01, issued on January 19,201 0, recommends that civilian agencies authorize issuance of a class deviation to use the new procurement thresholds for the Trade Agreements until such time as FAR 25.402(b) is formally amended. Determination It is hereby determined that a class deviation from FAR 25.402(b) is appropriate to allow the use of the revised procurement thresholds for the various Trade Agreements that were issued by the USTR on December 29,2009.

267

Drillers find niche as market recovers  

Science Conference Proceedings (OSTI)

The drilling industry depression culminating in June of last year has seen equipment prices fall through the floor. But indications of a mild, steady recovery continue to surface; prices are beginning to rise. On result is foreign contractors are pushing to purchase refurbished rigs while prices are still low, as shown in this article. An example of this trend is Houston-Based Oil Drilling Products Inc.'s (ODP) recent considerable increase in activity. The company operates as a complete turnkey rig broker involving: findings rigs to meet buyer specifications; shipping the rigs to the ODP yard in Houston; completing any refurbishing or modifications previously agreed upon; and shipping the rig out to the buyer.

Wells, B.

1987-07-01T23:59:59.000Z

268

Finding the Higgs boson: A status report  

SciTech Connect

The search for the Higgs boson of the minimal Standard Model has been a major focus of experimental high energy physics for some years now. Here, the authors review the current experimental limits and discuss the prospects for finding the Higgs boson at future accelerators, such as LEPII and the LHC. They consider only the Standard Model Higgs boson. Since a null result which definitively excluded a Higgs boson below some mass scale would be extremely important, they emphasize the case where the Higgs boson is much heavier than the relevant collider energy (or where there is no Higgs boson at all). Many of the results given here are a summary of those obtained by the DPF Committee on Long Term Planning.

Dawson, S. [Brookhaven National Lab., Upton, NY (United States). Physics Dept.

1995-08-16T23:59:59.000Z

269

Dissipative particle dynamics with attractive and repulsive particle-particle interactions  

Science Conference Proceedings (OSTI)

In molecular dynamics simulations, a combination of short-range repulsive and long-range attractive interactions allows the behavior of gases, liquids, solids, and multiphase systems to be simulated. We demonstrate that dissipative particle dynamics (DPD) simulations with similar pairwise particle-particle interactions can also be used to simulate the dynamics of multiphase fluids. In these simulations, the positive, short-range, repulsive part of the interaction potentials were represented by polynomial spline functions such as those used as smoothing functions in smoothed particle hydrodynamics, and the negative long-range part of the interaction has the same form but a different range and amplitude. If a single spline function corresponding to a purely repulsive interaction is used, the DPD fluid is a gas, and we show that the Poiseuille flow of this gas can be described accurately by the Navier-Stokes equation at low Reynolds numbers. In a two-component system in which the purely repulsive interactions between different components are substantially larger than the purely repulsive intracomponent interactions, separation into two gas phases occurs, in agreement with results obtained using DPD simulations with standard repulsive particle-particle interactions. Finally, we show that a combination of short-range repulsive interactions and long-range attractive interactions can be used to simulate the behavior of liquid drops surrounded by a gas. Similar models can be used to simulate a wide range of processes such as multiphase fluid flow through fractures and porous media with complex geometries and wetting behaviors.

Paul Meakin; Moubin Liu; Hai Huang

2006-01-01T23:59:59.000Z

270

Key findings of the national weatherization evaluation  

SciTech Connect

In 1990, the U.S. Department of Energy sponsored a comprehensive evaluation of its Weatherization Assistance Program, the nation`s largest residential energy conservation program. The primary goal of the evaluation was to establish whether the Program meets the objectives of its enabling legislation and fulfills its mission statement, to reduce the heating and cooling costs for low-income families-particularly the elderly, persons with disabilities, and children by improving the energy-efficiency of their homes and ensuring their health and safety. Oak Ridge National Laboratory managed a five-part study which produced a series of documents evaluating the Program. The objective of this document is to summarize the findings of the five-part National Weatherization Evaluation. The five studies were as follows: (1) Network Study-this study characterized the weatherization network`s leveraging, capabilities, procedures, staff, technologies, and innovations; (2) Resources and Population Study-this study profiled low-income weatherization resources, the weatherized population, and the population remaining to be served; (3) Multifamily Study-this study described the nature and extent of weatherization activities in larger multifamily buildings; (4) Single-family Study-this study estimated the national savings and cost- effectiveness of weatherizing single-family and small multifamily dwellings that use natural gas or electricity for space heating; (5) Fuel-Oil Study-this study estimated the savings and cost-effectiveness of weatherizing single-family homes, located in nine northeastern states, that use fuel oil for space heating. This paper provides a brief overview of each study`s purposes, research methods and most important findings.

Brown, M.A.; Berry, L.G.

1994-10-01T23:59:59.000Z

271

The Particle Adventure | Particle decays and annihiliations | Neutron beta  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle decays and annihiliations > Neutron beta Particle decays and annihiliations > Neutron beta decays Neutron beta decays A neutron (udd) decays to a proton (uud), an electron, and an antineutrino. This is called neutron beta decay. (The term beta ray was used for electrons in nuclear decays because they didn't know they were electrons!) Frame 1: The neutron (charge = 0) made of up, down, down quarks. Frame 2: One of the down quarks is transformed into an up quark. Since the down quark has a charge of -1/3 and and the up quark has a charge of 2/3, it follows that this process is mediated by a virtual W- particle, which carries away a (-1) charge (thus charge is conserved!) Frame 3: The new up quark rebounds away from the emitted W-. The neutron now has become a proton. Frame 4: An electron and antineutrino emerge from the virtual W- boson.

272

Engineered plant biomass feedstock particles  

DOE Patents (OSTI)

A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. At least 80% of the particles pass through a 1/4 inch screen having a 6.3 mm nominal sieve opening but are retained by a No. 10 screen having a 2 mm nominal sieve opening. The feedstock particles are manufactured from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.

Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

2011-10-18T23:59:59.000Z

273

Destruction of a metastable string by particle collisions  

Science Conference Proceedings (OSTI)

We calculate the probability of destruction of a metastable string by collisions of the Goldstone bosons, corresponding to the transverse waves on the string. We find a general formula that allows to determine the probability of the string breakup by a collision of arbitrary number of the bosons. We find that the destruction of a metastable string takes place only in collisions of even number of the bosons, and we explicitly calculate the energy dependence of such process in a two-particle collision for an arbitrary relation between the energy and the largest infrared scale in the problem, the length of the critical gap in the string.

Monin, A. K. [University of Minnesota, School of Physics and Astronomy (United States); Voloshin, M. B., E-mail: voloshin@umn.ed [University of Minnesota, William I. Fine Theoretical Physics Institute (United States)

2010-04-15T23:59:59.000Z

274

Fermilab Today  

NLE Websites -- All DOE Office Websites (Extended Search)

hints - but only hints - of a long-sought subatomic particle known as the Higgs boson, whose existence is a key to explaining why there is mass in the universe. By next...

275

Luis W. Alvarez - Patents  

Office of Scientific and Technical Information (OSTI)

points of the film. (AEC) US 3,659,105 SUBATOMIC PARTICLE DETECTOR WITH LIQUID ELECTRON MULTIPLICATION MEDIUM - Alvarez, L. W.; Derenzo, S. E.; Muller, R. A.; Smits, R. G.;...

276

Arthur Rosenfeld  

NLE Websites -- All DOE Office Websites (Extended Search)

in 1969 for the discovery of a dozen subatomic particles. In 1974, in response to the OPEC oil embargo, Rosenfeld switched to the new field of efficient use of energy, and...

277

Fermi 3/29/02  

NLE Websites -- All DOE Office Websites (Extended Search)

The sighting of Weakly Interacting Massive Particles could solve the double mystery of dark matter on the cosmic scale and of supersymmetry on the subatomic scale. The CDMS II...

278

Particle Data Group - PDG Identifiers  

NLE Websites -- All DOE Office Websites (Extended Search)

PDG Identifiers PDG Identifiers PDG Identifiers are references to items of PDG data such as particles, particle properties, decay modes and review articles. Once defined, a PDG Identifier is guaranteed to not change and can thus be used in other systems as a permanent reference to PDG data. Note that although the meaning of a given PDG Identifier will not change, there is no guarantee that the corresponding data will be included into future editions of the Review of Particle Physics. Each PDG Identifier consists of a single string without embedded spaces. PDG Identifiers are not case-sensitive. More details on PDG Identifiers can be found in this proposal. Future versions of pdgLive will directly support PDG Identifiers both for viewing and for downloading the data associated with a given PDG Identifier.

279

Optimal Occulter Design for Finding Extrasolar Planets  

E-Print Network (OSTI)

One proposed method for finding terrestrial planets around nearby stars is to use two spacecraft--a telescope and a specially shaped occulter that is specifically designed to prevent all but a tiny fraction of the starlight from diffracting into the telescope. As the cost and observing cadence for such a mission will be driven largely by the separation between the two spacecraft, it is critically important to design an occulter that can meet the observing goals while flying as close to the telescope as possible. In this paper, we explore this tradeoff between separation and occulter diameter. More specifically, we present a method for designing the shape of the outer edge of an occulter that is as small as possible and gives a shadow that is deep enough and large enough for a 4m telescope to survey the habitable zones of many stars for Earth-like planets. In particular, we show that in order for a 4m telescope to detect in broadband visible light a planet 0.06 arcseconds from a star shining $10^{10}$ times br...

Vanderbei, R J; Cady, E

2007-01-01T23:59:59.000Z

280

Optimal Occulter Design for Finding Extrasolar Planets  

E-Print Network (OSTI)

One proposed method for finding terrestrial planets around nearby stars is to use two spacecraft--a telescope and a specially shaped occulter that is specifically designed to prevent all but a tiny fraction of the starlight from diffracting into the telescope. As the cost and observing cadence for such a mission will be driven largely by the separation between the two spacecraft, it is critically important to design an occulter that can meet the observing goals while flying as close to the telescope as possible. In this paper, we explore this tradeoff between separation and occulter diameter. More specifically, we present a method for designing the shape of the outer edge of an occulter that is as small as possible and gives a shadow that is deep enough and large enough for a 4m telescope to survey the habitable zones of many stars for Earth-like planets. In particular, we show that in order for a 4m telescope to detect in broadband visible light a planet 0.06 arcseconds from a star shining $10^{10}$ times brighter than the planet requires a specially-shaped occulter 50m in diameter positioned about $72,000$ km in front of the telescope.

R. J. Vanderbei; N. J. Kasdin; E. Cady

2007-04-26T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Cellular Immune Findings in Lyme Disease  

E-Print Network (OSTI)

From 1981 through 1983, we did the first testing of cellular immunity in Lyme disease. Active established Lyme disease was often associated with lymphopenia, less spontaneous suppressor cell activity than normal, and a heightened response of lymphocytes to phytohemagglutinin and Lyme spirochetal antigens. Thus, a major feature of the immune response during active disease seems to be a lessening of suppression, but it is not yet known whether this response plays a role in the pathophysiology of the disease. Lyme disease, a tick-borne spirochetosis [1], is associated with characteristic immune findings. Elevated serum IgM levels in patients with active erythema chronicum migrans (ECM) predict subsequent nervous system, heart, or joint involvement, and serial determinations of IgM are generally the best laboratory indicator of disease activity [2]. In addition, patients with nervous system or joint abnormalities have an increased frequency of the B-cell alloantigen, DR2 [3]. During the last three summers, from 1981 through 1983, we performed the first tests of cellular immunity in Lyme disease. We report here that active Lyme disease is often associated with lymphopenia, less spontaneous suppressor cell activity than normal,

Leonard H. Sigal; Craig M. Moffat; Allen C. Steere; John; M. Dwyer, Ph.D.

1984-01-01T23:59:59.000Z

282

Thermophoresis of Brownian particles driven by coloured noise  

E-Print Network (OSTI)

The Brownian motion of microscopic particles is driven by the collisions with the molecules of the surrounding fluid. The noise associated with these collisions is not white, but coloured due, e.g., to the presence of hydrodynamic memory. The noise characteristic time scale is typically of the same order as the time over which the particle's kinetic energy is lost due to friction (inertial time scale). We demonstrate theoretically that, in the presence of a temperature gradient, the interplay between these two characteristic time scales can have measurable consequences on the particle long-time behaviour. Using homogenization theory, we analyse the infinitesimal generator of the stochastic differential equation describing the system in the limit where the two characteristic times are taken to zero; from this generator, we derive the thermophoretic transport coefficient, which, we find, can vary in both magnitude and sign, as observed in experiments. Furthermore, studying the long-term stationary particle distribution, we show that particles can accumulate towards the colder (positive thermophoresis) or the warmer (negative thermophoresis) regions depending on the dependence of their physical parameters and, in particular, their mobility on the temperature.

Scott Hottovy; Giovanni Volpe; Jan Wehr

2012-05-05T23:59:59.000Z

283

Influence of Particle Size Distribution on Random Close Packing  

E-Print Network (OSTI)

The densest amorphous packing of rigid particles is known as random close packing. It has long been appreciated that higher densities are achieved by using collections of particles with a variety of sizes. The variety of sizes is often quantified by the polydispersity of the particle size distribution: the standard deviation of the radius divided by the mean radius. Several prior studies quantified the increase of the packing density as a function of polydispersity. Of course, a particle size distribution is also characterized by its skewness, kurtosis, and higher moments, but the influence of these parameters has not been carefully quantified before. In this work, we numerically generate many packings with different particle radii distributions, varying polydispersity and skewness independently of one another. We find two significant results. First, the skewness can have a significant effect on the packing density and in some cases can have a larger effect than polydispersity. Second, the packing fraction is relatively insensitive to the value of the kurtosis. We present a simple empirical formula for the value of the random close packing density as a function of polydispersity and skewness.

Kenneth W. Desmond; Eric R. Weeks

2013-03-19T23:59:59.000Z

284

AEROSOL PARTICLE COLLECTOR DESIGN STUDY  

Science Conference Proceedings (OSTI)

A computational evaluation of a particle collector design was performed to evaluate the behavior of aerosol particles in a fast flowing gas stream. The objective of the work was to improve the collection efficiency of the device while maintaining a minimum specified air throughput, nominal collector size, and minimal power requirements. The impact of a range of parameters was considered subject to constraints on gas flow rate, overall collector dimensions, and power limitations. Potential improvements were identified, some of which have already been implemented. Other more complex changes were identified and are described here for further consideration. In addition, fruitful areas for further study are proposed.

Lee, S; Richard Dimenna, R

2007-09-27T23:59:59.000Z

285

Inclusive particle production at LHCb  

E-Print Network (OSTI)

Due to its unique pseudorapidity coverage and the possibility of extending measurements to low transverse momenta, LHCb provides important input to the understanding of particle production and energy flow in a kinematical range where QCD models have large uncertainties. Measurements of charged & strange particle production and energy flow are performed in the approximate pseudorapidity range 2<$\\eta $<5, which corresponds to the acceptance of the LHCb spectrometer. The results are compared to predictions given by several Monte Carlo event generators, which model the underlying event activity in different ways

Volyanskyy, D

2013-01-01T23:59:59.000Z

286

Charged particle mobility refrigerant analyzer  

DOE Patents (OSTI)

A method for analyzing a gaseous electronegative species comprises the steps of providing an analysis chamber; providing an electric field of known potential within the analysis chamber; admitting into the analysis chamber a gaseous sample containing the gaseous electronegative species; providing a pulse of free electrons within the electric field so that the pulse of free electrons interacts with the gaseous electronegative species so that a swarm of electrically charged particles is produced within the electric field; and, measuring the mobility of the electrically charged particles within the electric field.

Allman, Steve L. (Knoxville, TN); Chen, Chung-Hsuan (Knoxville, TN); Chen, Fang C. (Knoxville, TN)

1993-01-01T23:59:59.000Z

287

Gantry for medical particle therapy facility  

DOE Patents (OSTI)

A particle therapy gantry for delivering a particle beam to a patient includes a beam tube having a curvature defining a particle beam path and a plurality of superconducting, variable field magnets sequentially arranged along the beam tube for guiding the particle beam along the particle path. In a method for delivering a particle beam to a patient through a gantry, a particle beam is guided by a plurality of variable field magnets sequentially arranged along a beam tube of the gantry and the beam is alternately focused and defocused with alternately arranged focusing and defocusing variable field magnets.

Trbojevic, Dejan

2013-04-23T23:59:59.000Z

288

Gantry for medical particle therapy facility  

DOE Patents (OSTI)

A particle therapy gantry for delivering a particle beam to a patient includes a beam tube having a curvature defining a particle beam path and a plurality of fixed field magnets sequentially arranged along the beam tube for guiding the particle beam along the particle path. In a method for delivering a particle beam to a patient through a gantry, a particle beam is guided by a plurality of fixed field magnets sequentially arranged along a beam tube of the gantry and the beam is alternately focused and defocused with alternately arranged focusing and defocusing fixed field magnets.

Trbojevic, Dejan (Wading River, NY)

2012-05-08T23:59:59.000Z

289

EA-1247: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

47: Finding of No Significant Impact EA-1247: Finding of No Significant Impact Electrical Power System Upgrades at Los Alamos National Laboratory The US DOE finds that there would...

290

EERE Roofus' Solar and Efficient Home: Find-a-Word  

NLE Websites -- All DOE Office Websites (Extended Search)

Windows Activities Pizza Box Solar Oven Sundial Word Game Coloring Page Printable Version Find-a-Word Can you help Roofus find the words that he uses in his solar house? Find the...

291

The Pandora Particle Flow Algorithm  

E-Print Network (OSTI)

A high-energy e+e- collider, such as the ILC or CLIC, is arguably the best option to complement and extend the LHC physics programme. A lepton collider will allow for exploration of Standard Model Physics, such as precise measurements of the Higgs, top and gauge sectors, in addition to enabling a multitude of New Physics searches. However, physics analyses at such a collider will place unprecedented demands on calorimetry, with a required jet energy resolution of \\sigma(E)/E energy resolution by fully reconstructing the paths of individual particles through the detector. The energies of charged particles can then be extracted from precise inner detector tracker measurements, whilst photon energies will be measured in the ECAL, and only neutral hadron energies (10% of jet energies) will be measured in the HCAL, largely avoiding the typically poor HCAL resolution. This document introduces the Pandora particle flow algorithms, which offer the current state of the art in particle flow calorimetry for the ILC and CLIC. The performance of the algorithms is investigated by examining the reconstructed jet energy resolution and the ability to separate the hadronic decays of W and Z bosons.

J. S. Marshall; M. A. Thomson

2013-08-21T23:59:59.000Z

292

Image separation using particle filters  

Science Conference Proceedings (OSTI)

In this work, we will analyze the problem of source separation in the case of superpositions of different source images, which need to be extracted from a set of noisy observations. This problem occurs, for example, in the field of astrophysics, where ... Keywords: Bayesian source separation, Image separation, Non-stationary noise, Particle filtering, Sequential Monte Carlo

Mauro Costagli; Ercan Engin Kuruo?lu

2007-09-01T23:59:59.000Z

293

Dark energy and particle mixing  

E-Print Network (OSTI)

We show that the vacuum condensate due to particle mixing is responsible of a dynamically evolving dark energy. In particular, we show that values of the adiabatic index close to -1 for vacuum condensates of neutrinos and quarks imply, at the present epoch, contributions to the vacuum energy compatible with the estimated upper bound on the dark energy.

A. Capolupo; S. Capozziello; G. Vitiello

2008-08-30T23:59:59.000Z

294

Summary & Outlook: Particles and Cosmology  

E-Print Network (OSTI)

We review new results on strong and electroweak interactions, flavour physics, cosmic rays and cosmology, which were presented at this conference, focussing on physics beyond the Standard Models. Special emphasis is given to the Higgs sector of the Standard Model of Particle Physics and recent results on high-energy cosmic rays and their implications for dark matter.

Wilfried Buchmuller

2010-03-04T23:59:59.000Z

295

Engineered plant biomass feedstock particles  

DOE Patents (OSTI)

A novel class of flowable biomass feedstock particles with unusually large surface areas that can be manufactured in remarkably uniform sizes using low-energy comminution techniques. The feedstock particles are roughly parallelepiped in shape and characterized by a length dimension (L) aligned substantially with the grain direction and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. The particles exhibit a disrupted grain structure with prominent end and surface checks that greatly enhances their skeletal surface area as compared to their envelope surface area. The L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers. The W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers. The L.times.W dimensions define a pair of substantially parallel top surfaces characterized by some surface checking between longitudinally arrayed fibers. The feedstock particles are manufactured from a variety of plant biomass materials including wood, crop residues, plantation grasses, hemp, bagasse, and bamboo.

Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

2011-10-11T23:59:59.000Z

296

EIS-0456: Record of Decision and Floodplain Statement of Findings...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

456: Record of Decision and Floodplain Statement of Findings EIS-0456: Record of Decision and Floodplain Statement of Findings Cushman Hydroelectric Project, Mason County,...

297

Two Independent Assessments Find the Department of Energy's Yucca...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Independent Assessments Find the Department of Energy's Yucca Mountain Project is on Track Two Independent Assessments Find the Department of Energy's Yucca Mountain Project is on...

298

EA-1832: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1832: Finding of No Significant Impact Rainer Biogas LLC Community Anaerobic Manure Digester, Enumclaw, King County, Washington The U.S....

299

EA-1588: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1588: Finding of No Significant Impact Sacramento Municipal Utility District 230-kV Folsom Dam Transmission Line Relocation SMUD's proposed...

300

EA-1400: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

00: Finding of No Significant Impact EA-1400: Finding of No Significant Impact Wind Turbine Project at Fairmont Reservoir, Lancaster, California The Department of Energy, through...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

EA-1238: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Proposed Construction and Operation of the Nonproliferation and International Security Center The US Department of Energy finds that there...

302

EA-1404: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1404: Finding of No Significant Impact Actinide Chemistry and Repository Science Laboratory Based on the analysis in the EA and after...

303

EA-1190: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

90: Finding of No Significant Impact EA-1190: Finding of No Significant Impact Wastewater Treatment Capability Upgrade Based on the information contained in the Environmental...

304

EA-1698: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1698: Finding of No Significant Impact Baldwin Wind Energy Center Project Baldwin Wind, LLC has requested to interconnect their proposed new...

305

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

April 21, 2011 EA-1753: Finding of No Significant Impact Beacon Power Corporation Flywheel Frequency Regulation Plant, Chicago Heights, Illinois April 18, 2011 EA-1795: Finding...

306

EA-1116: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1116: Finding of No Significant Impact EA-1116: Finding of No Significant Impact Kalina Geothermal Demonstration Project, Steamboat Springs, Nevada Based on the information...

307

EA-1539: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9: Finding of No Significant Impact EA-1539: Finding of No Significant Impact North Area Right-of-Way Maintenance, California Western Area Power Administration proposes to revise...

308

EA-1868: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1868: Finding of No Significant Impact EA-1868: Finding of No Significant Impact Manhattan Project Sites (Hanford, Washington; Los Alamos, New Mexico, Oak Ridge,...

309

EA-1819: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1819: Finding of No Significant Impact Kilowatts for Kenston Wind Energy Project, Chagrin Falls, Geauga County, Ohio The Department of Energy's...

310

EA-1747: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7: Finding of No Significant Impact EA-1747: Finding of No Significant Impact Rocky Flats Surface Water Configuration, Jefferson County, Colorado Surface Water Configuration...

311

EA-1763: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1763: Finding of No Significant Impact EA-1763: Finding of No Significant Impact Geothermal Expansion to Boise State University, City of Boise, Ada County, Idaho The Department...

312

EA-1904: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

No Significant Impact EA-1904: Finding of No Significant Impact Linac Coherent Light Source II at Stanford Linear Accelerator Laboratory, San Mateo, CA Based on the findings in...

313

EA-1083: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3: Finding of No Significant Impact EA-1083: Finding of No Significant Impact New SiltClay Source Development and Use at the Idaho National Engineering and Environmental...

314

EA-1575: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1575: Finding of No Significant Impact EA-1575: Finding of No Significant Impact Oak Ridge Science and Technology Project at the Oak Ridge National Laboratory, Oak Ridge,...

315

EA-1620: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1620: Finding of No Significant Impact Burbank Hydrogen Fueling Station Project, CA The Department of Energy, in coordination with the City of...

316

EA-1774: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

: Finding of No Significant Impact EA-1774: Finding of No Significant Impact Energy Conservation Standards for Residential Water Heaters, Direct Heating Equipment, and Pool Heaters...

317

EA-0931: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-0931: Finding of No Significant Impact Center for Molecular Electronics University of Missouri, St. Louis Based on the analysis in the...

318

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Upgrade Project March 28, 1994 EA-0893: Finding of No Significant Impact Gazes Cardiac Research Institute Medical University of South Carolina March 18, 1994 EA-0845: Finding of...

319

EA-0893: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-0893: Finding of No Significant Impact Gazes Cardiac Research Institute Medical University of South Carolina Based on the analysis in the EA,...

320

An effective stochastic excitation strategy for finding elusive...  

NLE Websites -- All DOE Office Websites (Extended Search)

An effective stochastic excitation strategy for finding elusive NMR signals from solids Title An effective stochastic excitation strategy for finding elusive NMR signals from...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Aerial survey finds no increase in radioactivity for Los Alamos...  

NLE Websites -- All DOE Office Websites (Extended Search)

Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Aerial survey finds no increase in radioactivity ... Aerial survey finds no increase in...

322

EA-1767: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1767: Finding of No Significant Impact Virginia State Energy Program's Cephas C&D Wastes Biomass Project, Richmond, Virginia Based on the...

323

EA-0319: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

19: Finding of No Significant Impact EA-0319: Finding of No Significant Impact Fuel Production Facility, Building 225-H Savannah River Plant The Department of Energy has prepared...

324

Money for Research, Not for Energy Bills: Finding Energy and...  

NLE Websites -- All DOE Office Websites (Extended Search)

Not for Energy Bills: Finding Energy and Cost Savings in High Performance Computer Facility Designs Title Money for Research, Not for Energy Bills: Finding Energy and Cost...

325

EIS-0369: Floodplain Statement of Finding | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

69: Floodplain Statement of Finding EIS-0369: Floodplain Statement of Finding Rail Alignment for the Construction and Operation of a Railroad in Nevada to a Geologic Repository at...

326

EA-1696: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

696: Finding of No Significant Impact EA-1696: Finding of No Significant Impact Pantex Renewable Energy Project, Amarillo, Texas The NNSA has prepared an Environmental Assessment...

327

EA-1720: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1720: Finding of No Significant Impact Pyrotek, Inc., Electric Drive Vehicle Battery and Component Manufacturing Initiative, Sanborn, New York...

328

EA-1718: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1718: Finding of No Significant Impact EnerG2, Inc., Electric Drive Vehicle Battery and Component Manufacturing Initiative Project, Albany,...

329

EA-0819: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

19: Finding of No Significant Impact EA-0819: Finding of No Significant Impact Energy Conservation Standards for Eight Types of Consumer Products: Room Air Conditioners, Water...

330

EIS-0372: Record of Decision and Floodplain Statement of Findings...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of Findings EIS-0372: Record of Decision and Floodplain Statement of Findings Bangor Hydro-Electric Company Northeast Reliability Interconnect DOE announces its decision to...

331

Particle and Fibre Toxicology BioMed Central Review  

E-Print Network (OSTI)

Health effects of residential wood smoke particles: the importance of combustion conditions and physicochemical particle properties

Anette Kocbach Blling; Karl Espen Yttri; Lars Barregard; Gerd Sallsten; Per E Schwarze; Christoffer Boman

2009-01-01T23:59:59.000Z

332

Application of immune algorithm-based particle swarm optimization for optimized load distribution among cascade hydropower stations  

Science Conference Proceedings (OSTI)

The immune algorithm-based particle swarm optimization (IA-PSO), which is proposed by involving the immune information processing mechanism into the original particle swarm optimal algorithm, improves the ability to find the globally excellent result ... Keywords: Cascade hydropower stations, Immune algorithm, Load distribution, PSO

Anqiang Li; Liping Wang; Jiqing Li; Changming Ji

2009-06-01T23:59:59.000Z

333

Circular, confined distribution for charged particle beams  

DOE Patents (OSTI)

A charged particle beam line is formed with magnetic optics that manipulate the charged particle beam to form the beam having a generally rectangular configuration to a circular beam cross-section having a uniform particle distribution at a predetermined location. First magnetic optics form a charged particle beam to a generally uniform particle distribution over a square planar area at a known first location. Second magnetic optics receive the charged particle beam with the generally square configuration and affect the charged particle beam to output the charged particle beam with a phase-space distribution effective to fold corner portions of the beam toward the core region of the beam. The beam forms a circular configuration having a generally uniform spatial particle distribution over a target area at a predetermined second location. 26 figs.

Garnett, R.W.; Dobelbower, M.C.

1995-11-21T23:59:59.000Z

334

Circular, confined distribution for charged particle beams  

DOE Patents (OSTI)

A charged particle beam line is formed with magnetic optics that manipulate the charged particle beam to form the beam having a generally rectangular configuration to a circular beam cross-section having a uniform particle distribution at a predetermined location. First magnetic optics form a charged particle beam to a generally uniform particle distribution over a square planar area at a known first location. Second magnetic optics receive the charged particle beam with the generally square configuration and affect the charged particle beam to output the charged particle beam with a phase-space distribution effective to fold corner portions of the beam toward the core region of the beam. The beam forms a circular configuration having a generally uniform spatial particle distribution over a target area at a predetermined second location.

Garnett, Robert W. (Los Alamos, NM); Dobelbower, M. Christian (Toledo, OH)

1995-01-01T23:59:59.000Z

335

EA-1591: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1591: Finding of No Significant Impact Palisades - Goshen Transmission Line Reconstruction Project The Bonneville Power Administration (BPA) announces its environmental findings on the Palisades-Goshen Transmission Line Reconstruction Project. The project involves rebuilding the existing Palisades-Goshen 115-kilovolt (kV) transmission line, which extends from Palisades Dam in eastern Idaho approximately 52 miles west to the Goshen Substation south of Idaho Falls, Idaho. Palisades-Goshen Transmission Line Reconstruction Project Finding of No Significant Impact (FONSI) and Floodplain Statement of Findings More Documents & Publications EA-1591: Final Environmental Assessment, Finding of No Significant Impact, and Mitigation Action Plan

336

Awards for the Particle Adventure  

NLE Websites -- All DOE Office Websites (Extended Search)

US Department of Energy Web Council Sites such as yours that are featured appeal to a wide audience and represent the "best" of DOE on the web in terms of being informative, relevant, and user-friendly. (October 2000) Discovery Channel This site takes your students into the future. Check out this totally awesome interactive site for students of chemistry and physics. This adventure tells us of what the world is made (quarks, leptons and force carriers) and how the world is held together (gravitational force, strong force, weak force and electromagnetic force), and tests for knowledge with frequent quizzes. A great site to introduce your students to the multimedia nature of the internet. Snap Editors Choice Learn the fundamentals of particle physics on this interactive tour of the atom. The Particle Adventure has been awarded a Snap Editors' Choice designation in recognition of its excellence in design, content and editorial presentation. (October 1998)

337

Boron doping a semiconductor particle  

DOE Patents (OSTI)

A method (10,30) of boron doping a semiconductor particle using boric acid to obtain a p-type doped particle. Either silicon spheres or silicon powder is mixed with a diluted solution of boric acid having a predetermined concentration. The spheres are dried (16), with the boron film then being driven (18) into the sphere. A melt procedure mixes the driven boron uniformly throughout the sphere. In the case of silicon powder, the powder is metered out (38) into piles and melted/fused (40) with an optical furnace. Both processes obtain a p-type doped silicon sphere with desired resistivity. Boric acid is not a restricted chemical, is inexpensive, and does not pose any special shipping, handling, or disposal requirements.

Stevens, Gary Don (18912 Ravenglen Ct., Dallas, TX 75287); Reynolds, Jeffrey Scott (703 Horizon, Murphy, TX 75094); Brown, Louanne Kay (2530 Poplar Tr., Garland, TX 75042)

1998-06-09T23:59:59.000Z

338

Particle Bed Reactor scaling relationships  

DOE Green Energy (OSTI)

Scaling relationships for Particle Bed Reactors (PBRs) are discussed. The particular applications are short duration systems, i.e., for propulsion or burst power. Particle Bed Reactors can use a wide selection of different moderators and reflectors and be designed for such a wide range of power and bed power densities. Additional design considerations include the effect of varying the number of fuel elements, outlet Mach number in hot gas channel, etc. All of these variables and options result in a wide range of reactor weights and performance. Extremely light weight reactors (approximately 1 kg/MW) are possible with the appropriate choice of moderator/reflector and power density. Such systems are very attractive for propulsion systems where parasitic weight has to be minimized.

Slovik, G.; Araj, K.; Horn, F.L.; Ludewig, H.; Benenati, R.

1987-01-01T23:59:59.000Z

339

Neutral particle beam intensity controller  

DOE Patents (OSTI)

The neutral beam intensity controller is based on selected magnetic defocusing of the ion beam prior to neutralization. The defocused portion of the beam is dumped onto a beam dump disposed perpendicular to the beam axis. Selective defocusing is accomplished by means of a magnetic field generator disposed about the neutralizer so that the field is transverse to the beam axis. The magnetic field intensity is varied to provide the selected partial beam defocusing of the ions prior to neutralization. The desired focused neutral beam portion passes along the beam path through a defining aperture in the beam dump, thereby controlling the desired fraction of neutral particles transmitted to a utilization device without altering the kinetic energy level of the desired neutral particle fraction. By proper selection of the magnetic field intensity, virtually zero through 100% intensity control of the neutral beam is achieved.

Dagenhart, W.K.

1984-05-29T23:59:59.000Z

340

ARM - Measurement - Particle size distribution  

NLE Websites -- All DOE Office Websites (Extended Search)

size distribution size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Particle size distribution The number of particles present in any given volume of air within a specified size range. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AOS : Aerosol Observing System CSPHOT : Cimel Sunphotometer TDMA : Tandem Differential Mobility Analyzer UHSAS : Ultra-High Sensitivity Aerosol Spectrometer Field Campaign Instruments

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Are Black Holes Elementary Particles?  

E-Print Network (OSTI)

Quantum black holes are the smallest and heaviest conceivable elementary particles. They have a microscopic size but a macroscopic mass. Several fundamental types have been constructed with some remarkable properties. Quantum black holes in the neighborhood of the Galaxy could resolve the paradox of ultra-high energy cosmic rays detected in Earths atmosphere. They may also play a role as dark matter in cosmology. 1 1

Yuan K. Ha

2009-01-01T23:59:59.000Z

342

Engineered plant biomass feedstock particles  

DOE Patents (OSTI)

A new class of plant biomass feedstock particles characterized by consistent piece size and shape uniformity, high skeletal surface area, and good flow properties. The particles of plant biomass material having fibers aligned in a grain are characterized by a length dimension (L) aligned substantially parallel to the grain and defining a substantially uniform distance along the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L. In particular, the L.times.H dimensions define a pair of substantially parallel side surfaces characterized by substantially intact longitudinally arrayed fibers, the W.times.H dimensions define a pair of substantially parallel end surfaces characterized by crosscut fibers and end checking between fibers, and the L.times.W dimensions define a pair of substantially parallel top and bottom surfaces. The L.times.W surfaces of particles with L/H dimension ratios of 4:1 or less are further elaborated by surface checking between longitudinally arrayed fibers. The length dimension L is preferably aligned within 30.degree. parallel to the grain, and more preferably within 10.degree. parallel to the grain. The plant biomass material is preferably selected from among wood, agricultural crop residues, plantation grasses, hemp, bagasse, and bamboo.

Dooley, James H. (Federal Way, WA); Lanning, David N. (Federal Way, WA); Broderick, Thomas F. (Lake Forest Park, WA)

2012-04-17T23:59:59.000Z

343

Significant role of deformation in probing postsaddle nuclear dissipation with light particle emission  

Science Conference Proceedings (OSTI)

Using a one-dimensional Langevin model, we study the effects of deformation on the multiplicities of postsaddle neutrons, protons, alpha particles, and giant dipole resonance (GDR) gamma rays of a heavy fissioning system {sup 240}Cf as probes of postsaddle nuclear dissipation (beta). It is shown that postsaddle dissipation effects on these light particles have a significant deformation dependence. Furthermore, we find that the role of deformation depends on the type of the particle. It reduces the sensitive influence of beta on protons, alpha particles, and GDR gamma rays substantially, whereas it enhances the sensitivity of neutrons to beta. The results suggest that to accurately extract the postsaddle friction strength by comparing measured prescission particle multiplicities of heavy nuclei with calculations based on statistical models or stochastic equations like Langevin equations, it is important to take into account the deformation effects. The influence of model dimensionality is discussed.

Ye, W. [Department of Physics, Southeast University, Nanjing 210096, Jiangsu Province (China)

2010-05-15T23:59:59.000Z

344

Particle-in-Cell Simulations of Relativistic Shear Flow Boundary Layer  

E-Print Network (OSTI)

Using 2.5-dimensional Particle-in-Cell simulations, we studied the kinetic physics of relativistic shear flows. We find efficient magnetic field generation and nonthermal particle acceleration at the shear boundary. Ordered flux tubes/sheets with alternating polarities and peak fields reaching equipartition values are generated and sustained by the free-energy of the shear flow. Nonthermal high-energy particles are accelerated by diffusive acceleration. A quasi-power-law tail truncated at low energies is achieved at strong shears. These results have important implications for the dissipation and radiation of relativistic jets.

Liang, Edison; Boettcher, Markus

2011-01-01T23:59:59.000Z

345

MAGNETIC FIELD GENERATION AND PARTICLE ENERGIZATION AT RELATIVISTIC SHEAR BOUNDARIES IN COLLISIONLESS ELECTRON-POSITRON PLASMAS  

SciTech Connect

Using particle-in-cell simulations, we study the kinetic physics of relativistic shear flow in collisionless electron-positron (e+e-) plasmas. We find efficient magnetic field generation and particle energization at the shear boundary, driven by streaming instabilities across the shear interface and sustained by the shear flow. Nonthermal, anisotropic high-energy particles are accelerated across field lines to produce a power-law tail turning over just below the shear Lorentz factor. These results have important implications for the dissipation and radiation of jets in blazars and gamma-ray bursts.

Liang, Edison; Smith, Ian [Rice University, MS 108, 6100 Main Street, Houston, TX 77005 (United States); Boettcher, Markus, E-mail: liang@rice.edu, E-mail: iansmith@rice.edu, E-mail: boettchm@ohio.edu [Physics and Astronomy Department, Ohio University, Athens, OH 45701 (United States)

2013-04-01T23:59:59.000Z

346

Negative azimuthal force of a nanofiber-guided light on a particle  

E-Print Network (OSTI)

We calculate the force of a quasicircularly polarized guided light field of a nanofiber on a dielectric spherical particle. We show that the orbital parts of the axial and azimuthal components of the Poynting vector are always positive while the spin parts can be either positive or negative. We find that, for appropriate values of the size parameter of the particle, the azimuthal component of the force is directed oppositely to the circulation direction of the energy flow around the nanofiber. The occurrence of such a negative azimuthal force indicates that the particle undergoes a negative torque.

Kien, Fam Le

2013-01-01T23:59:59.000Z

347

Particle Data Group - Hadronic Cross-sections  

NLE Websites -- All DOE Office Websites (Extended Search)

Data files and plots of cross-sections and related quantities in the 2012 Review of Particle Physics Please use this CITATION: J. Beringer et al. (Particle Data Group), Phys. Rev....

348

Inertial coupling for point particle fluctuating hydrodynamics  

Science Conference Proceedings (OSTI)

A method for particle hydrodynamics based on an hybrid Eulerian-Lagrangian approach is presented. Particle dynamics are solved in continuum space while the fluid equations are solved in an Eulerian mesh, and described by finite volume fluctuating hydrodynamics. ...

F. Balboa Usabiaga; I. Pagonabarraga; R. Delgado-Buscalioni

2013-02-01T23:59:59.000Z

349

Authors, Review of Particle Physics -- 1996  

NLE Websites -- All DOE Office Websites (Extended Search)

PARTICLE PHYSICS Particle Data Group Citation: R.M. Barnett et al., Physical Review D54 1, (1996) (Also available in alphabetical order and by responsiblity. ) R. Michael Barnett,...

350

Maximizing absorption and scattering by dipole particles  

E-Print Network (OSTI)

This is a review and tutorial paper which discusses the fundamental limitations on the maximal power which can be received, absorbed, and scattered by an electrically small electrically polarizable particle and infinite periodical arrays of such particles.

Tretyakov, Sergei

2013-01-01T23:59:59.000Z

351

Searches for charmed particles using bubble chambers  

SciTech Connect

Searches for charm particle production using bubble chambers are summarized. These searches depend on the detection of neutral strange particles. Upper limits are given for the different charmed mass regions and methods of search. (auth)

Harris, R.

1975-10-01T23:59:59.000Z

352

Inertial Particle Dynamics in a Hurricane  

E-Print Network (OSTI)

The motion of inertial (i.e., finite-size) particles is analyzed in a three-dimensional unsteady simulation of Hurricane Isabel. As established recently, the long-term dynamics of inertial particles in a fluid is governed ...

Sapsis, Themistoklis

353

Chemistry of airborne particles from metallurgical processing  

E-Print Network (OSTI)

Airborne particles fall into one of three size ranges. The nucleation range consists of nanoparticles created from vapor atom collisions. The decisive parameter for particle size and composition is the supercooling of the ...

Jenkins, Neil Travis, 1973-

2003-01-01T23:59:59.000Z

354

Ordered transport and identification of particles  

DOE Patents (OSTI)

A method and apparatus are provided for application of electrical field gradients to induce particle velocities to enable particle sequence and identification information to be obtained. Particle sequence is maintained by providing electroosmotic flow for an electrolytic solution in a particle transport tube. The transport tube and electrolytic solution are selected to provide an electroosmotic radius of >100 so that a plug flow profile is obtained for the electrolytic solution in the transport tube. Thus, particles are maintained in the same order in which they are introduced in the transport tube. When the particles also have known electrophoretic velocities, the field gradients introduce an electrophoretic velocity component onto the electroosmotic velocity. The time that the particles pass selected locations along the transport tube may then be detected and the electrophoretic velocity component calculated for particle identification. One particular application is the ordered transport and identification of labeled nucleotides sequentially cleaved from a strand of DNA.

Shera, E.B.

1993-05-11T23:59:59.000Z

355

Ordered transport and identification of particles  

DOE Patents (OSTI)

A method and apparatus are provided for application of electrical field gradients to induce particle velocities to enable particle sequence and identification information to be obtained. Particle sequence is maintained by providing electroosmotic flow for an electrolytic solution in a particle transport tube. The transport tube and electrolytic solution are selected to provide an electroosmotic radius of >100 so that a plug flow profile is obtained for the electrolytic solution in the transport tube. Thus, particles are maintained in the same order in which they are introduced in the transport tube. When the particles also have known electrophoretic velocities, the field gradients introduce an electrophoretic velocity component onto the electroosmotic velocity. The time that the particles pass selected locations along the transport tube may then be detected and the electrophoretic velocity component calculated for particle identification. One particular application is the ordered transport and identification of labeled nucleotides sequentially cleaved from a strand of DNA.

Shera, E. Brooks (Los Alamos, NM)

1993-01-01T23:59:59.000Z

356

Laser Wakefield Particle Accelerators Project at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle Acceleration Laser Wakefield Particle Acceleration Vorpal.jpg Key Challenges: Design of multiple-staged, 10-GeV laser-wakefield plasma accelerated next-generation hardware...

357

Particle Impact and Breakup in Aircraft Measurement  

Science Conference Proceedings (OSTI)

Measurements of cloud particle properties from aircraft by optical and impact techniques are subject to artifacts following particle breakup prior to detection. The impact kinetic energy to surface energy ratio (L) provides a breakup criterion at ...

German Vidaurre; John Hallett

2009-05-01T23:59:59.000Z

358

Inertial measurement via dynamics of trapped particles  

E-Print Network (OSTI)

We describe theoretical and practical aspects of the particle trap as an inertial sensor. The insight motivating this approach is that a trapped particle acts like a mass on a spring, but the restoring forces are provided ...

Post, E. Rehmi, 1966-

2003-01-01T23:59:59.000Z

359

Solar neutrino physics: Sensitivity to light dark matter particles  

E-Print Network (OSTI)

Neutrinos are produced in several neutrino nuclear reactions of the proton-proton chain and carbon-nitrogen-oxygen cycle that take place at different radius of the Sun's core. Hence, measurements of solar neutrino fluxes provide a precise determination of the local temperature. The accumulation of non-annihilating light dark matter particles (with masses between 5 GeV and 16 GeV in the Sun produces a change in the local solar structure, namely, a decrease in the central temperature of a few percent. This variation depends on the properties of the dark matter particles, such as the mass of the particle and its spin-independent scattering cross-section on baryon-nuclei, specifically, the scattering with helium, oxygen, and nitrogen among other heavy elements. This temperature effect can be measured in almost all solar neutrino fluxes. In particular, by comparing the neutrino fluxes generated by stellar models with current observations, namely 8B neutrino fluxes, we find that non-annihilating dark matter particles with a mass smaller than 10 GeV and a spin-independent scattering cross-section with heavy baryon-nuclei larger than 3 x 10^{-37} cm^-2 produce a variation in the 8B neutrino fluxes that would be in conflict with current measurements.

Ilidio Lopes; Joseph Silk

2013-09-29T23:59:59.000Z

360

Inertial Coupling Method for particles in an incompressible fluctuating fluid  

E-Print Network (OSTI)

We develop an inertial coupling method for modeling the dynamics of point-like 'blob' particles immersed in an incompressible fluid, generalizing previous work for compressible fluids. The coupling consistently includes excess (positive or negative) inertia of the particles relative to the displaced fluid, and accounts for thermal fluctuations in the fluid momentum equation. The coupling between the fluid and the blob is based on a no-slip constraint equating the particle velocity with the local average of the fluid velocity, and conserves momentum and energy. We demonstrate that the formulation obeys a fluctuation-dissipation balance, owing to the non-dissipative nature of the no-slip coupling. We develop a spatio-temporal discretization that preserves, as best as possible, these properties of the continuum formulation. In the spatial discretization, the local averaging and spreading operations are accomplished using compact kernels commonly used in immersed boundary methods. We find that the special properties of these kernels make the discrete blob a particle with surprisingly physically-consistent volume, mass, and hydrodynamic properties. We develop a second-order semi-implicit temporal integrator that maintains discrete fluctuation-dissipation balance, and is not limited in stability by viscosity. Furthermore, the temporal scheme requires only constant-coefficient Poisson and Helmholtz linear solvers, enabling a very efficient and simple FFT-based implementation on GPUs. We numerically investigate the performance of the method on several standard test problems...

F. Balboa Usabiaga; R. Delgado-Buscalioni; B. E. Griffith; A. Donev

2012-12-27T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Current experiments in particle physics - particle data group  

Science Conference Proceedings (OSTI)

This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries.

Galic, H. [Stanford Univ., CA (United States). Stanford Linear Accelerator Center; Lehar, F. [Centre d`Etudes Nucleaires de Saclay, Gif-sur-Yvette (France); Kettle, P.R. [Paul Scherrer Institute, Villigen (Switzerland)] [and others

1996-09-01T23:59:59.000Z

362

Bohmian particle trajectories contradict quantum mechanics  

E-Print Network (OSTI)

The Bohmian interpretation of quantum mechanics adds particle trajectories to the wave function and ensures that the probability distribution of the particle positions agrees with quantum mechanics at any time. This is not sufficient to avoid contradictions with quantum mechanics. There are correlations between particle positions at different times which cannot be reproduced with real particle trajectories. A simple rearrangement of an experimental test of the Bell-CHSH inequality demonstrates this.

Michael Zirpel

2009-03-23T23:59:59.000Z

363

Production of scalar particles in expanding spacetime  

E-Print Network (OSTI)

In this paper, we investigate cosmological particle production using quantum field theory (QFT). We will consider how production of scalar particles can occur in an expanding universe. By introducing a time-dependent energy parameter representing the time evolution of the universe, the initial vacuum state will be excited. Consequently, creation of particles is present. Here, our focus is mainly creation of minimally coupled scalar particles in Minkowski spacetime.

S. Ng

2005-05-26T23:59:59.000Z

364

Implementing Molecular Dynamics on Hybrid High Performance Computers - Particle-Particle Particle-Mesh  

Science Conference Proceedings (OSTI)

The use of accelerators such as graphics processing units (GPUs) has become popular in scientific computing applications due to their low cost, impressive floating-point capabilities, high memory bandwidth, and low electrical power requirements. Hybrid high-performance computers, machines with nodes containing more than one type of floating-point processor (e.g. CPU and GPU), are now becoming more prevalent due to these advantages. In this paper, we present a continuation of previous work implementing algorithms for using accelerators into the LAMMPS molecular dynamics software for distributed memory parallel hybrid machines. In our previous work, we focused on acceleration for short-range models with an approach intended to harness the processing power of both the accelerator and (multi-core) CPUs. To augment the existing implementations, we present an efficient implementation of long-range electrostatic force calculation for molecular dynamics. Specifically, we present an implementation of the particle-particle particle-mesh method based on the work by Harvey and De Fabritiis. We present benchmark results on the Keeneland InfiniBand GPU cluster. We provide a performance comparison of the same kernels compiled with both CUDA and OpenCL. We discuss limitations to parallel efficiency and future directions for improving performance on hybrid or heterogeneous computers.

Brown, W Michael [ORNL; Kohlmeyer, Axel [Temple University; Plimpton, Steven J [ORNL; Tharrington, Arnold N [ORNL

2012-01-01T23:59:59.000Z

365

Asynchronous Event-Driven Particle Algorithms  

Science Conference Proceedings (OSTI)

We present, in a unifying way, the main components of three asynchronous event-driven algorithms for simulating physical systems of interacting particles. The first example, hard-particle molecular dynamics, is well known. We also present a recently ... Keywords: Asynchronous, event-driven, kinetic Monte Carlo, molecular dynamics, particle systems

Aleksandar Donev

2009-04-01T23:59:59.000Z

366

Structure Formation by Active Brownian Particles  

E-Print Network (OSTI)

We call Brownian particles with the ability to generate a field Active Brownian Particles if the produced field self-consistently determines the motion of the particles or defines their rates of chemical reactions. We worked out examples where this stochastic approach shows behaviour like well known reaction-diffusion models: periodic pattern, spirals, travelling spots.

Lutz Schimansky-Geier; Michaela Mieth; Helge Ros; Horst Malchow

1995-01-01T23:59:59.000Z

367

Quantitative organic vapor-particle sampler  

DOE Patents (OSTI)

A quantitative organic vapor-particle sampler for sampling semi-volatile organic gases and particulate components. A semi-volatile organic reversible gas sorbent macroreticular resin agglomerates of randomly packed microspheres with the continuous porous structure of particles ranging in size between 0.05-10 .mu.m for use in an integrated diffusion vapor-particle sampler.

Gundel, Lara (Berkeley, CA); Daisey, Joan M. (Walnut Creek, CA); Stevens, Robert K. (Cary, NC)

1998-01-01T23:59:59.000Z

368

Optically active biological particle distinguishing apparatus  

SciTech Connect

The disclosure is directed to organic particle sorting and identification. High frequency pulses of circularly polarized light, alternating between left and right, intersect a fast moving stream of organic particles. Circular intensity differential scattering and linear intensity differential scattering are monitored to uniquely identify a variety of organic particles.

Salzman, Gary C. (Los Alamos, NM); Kupperman, Robert H. (Washington, DC)

1989-01-01T23:59:59.000Z

369

Free Energy Formalism for Particle Adsorption  

E-Print Network (OSTI)

The equilibrium properties of particles adsorption is investigated theoretically. The model relies on a free energy formulation which allows to generalize the Maxwell-Boltzmann description to solutions for which the bulk volume fraction of potentially adsorbed particles is very high. As an application we consider the equilibrium physical adsorption of neutral and charged particles from solution onto two parallel adsorbing surfaces.

Pierre Gosselin; Herve Mohrbach

2005-02-04T23:59:59.000Z

370

Electroless plating apparatus for discrete microsized particles  

SciTech Connect

Method and apparatus are disclosed for producing very uniform coatings of a desired material on discrete microsized particles by electroless techniques. Agglomeration or bridging of the particles during the deposition process is prevented by imparting a sufficiently random motion to the particles that they are not in contact with each other for a time sufficient for such to occur.

Mayer, Anton (Los Alamos, NM)

1978-01-01T23:59:59.000Z

371

Electrolytic plating apparatus for discrete microsized particles  

SciTech Connect

Method and apparatus are disclosed for electrolytically producing very uniform coatings of a desired material on discrete microsized particles. Agglomeration or bridging of the particles during the deposition process is prevented by imparting a sufficiently random motion to the particles that they are not in contact with a powered cathode for a time sufficient for such to occur.

Mayer, Anton (Los Alamos, NM)

1976-11-30T23:59:59.000Z

372

Observing Newtrinos: 1663 Science and Technology Magazine | Los National  

NLE Websites -- All DOE Office Websites (Extended Search)

Observing Newtrinos Observing Newtrinos RECENT NEUTRINO EXPERIMENTS PROVIDE A RARE OPPORTUNITY TO GLIMPSE NEW PARTICLE PHYSICS The field of particle physics spent much of the last century converging on the "standard model" that describes subatomic particles and the forces by which they interact. Ambitious research that began in the early 1900s with hot-air balloon experiments aimed at catching cosmic rays, and followed later in the century with accelerator-based experiments, led to the extraordinary success of the standard model. Nonetheless, the excitement in particle physics often lies not with the vast body of solidly established textbook knowledge, but rather on the fringe, where researchers seek to identify new physics beyond the standard model. Some even hope to find a

373

Quantum key distribution using intra-particle entanglement  

E-Print Network (OSTI)

We propose the use of intra-particle entanglement to enhance the security of a practical implementation of the Bennett-Brassard-1984 (BB84) quantum key distribution scheme. Intra-particle entanglement is an attractive resource since it can be easily generated using only linear optics. Security is studied under a simple model of incoherent attack for protocols involving two or all five mutually unbiased bases. In terms of efficiency of secret key generation and tolerable error rate, the latter is found to be superior to the former. We find that states that allow secrecy distillation are necessarily entangled, though they may be local. Since more powerful attacks by Eve obviously exist, our result implies that security is a strictly stronger condition than entanglement for these protocols.

S. Adhikari; Dipankar Home; A. S. Majumdar; A. K. Pan; Akshata Shenoy H.; R. Srikanth

2011-01-04T23:59:59.000Z

374

EA-1183: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1183: Finding of No Significant Impact Coal-fired Diesel Generator University of Alaska, Fairbanks, Alaska Based on analysis in the EA, DOE has...

375

EA-1189: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1189: Finding of No Significant Impact Non-thermal Treatment of Hanford Site Low-level Mixed Waste Based on the analysis contained in the EA,...

376

EA-1135: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Finding of No Significant Impact EA-1135: Finding of No Significant Impact Offsite Thermal Treatment of Low-level Mixed Waste Based on the analysis contained in the EA, and...

377

EA-1897: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7: Finding of No Significant Impact EA-1897: Finding of No Significant Impact AltaRock's Newberry Volcano EGS Demonstration near Bend, Oregon Based on the information presented in...

378

EA-1897: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1897: Finding of No Significant Impact AltaRock's Newberry Volcano EGS Demonstration near Bend, Oregon Based on the information presented in the...

379

Find software developed by the DOE labs via updated website,...  

Office of Scientific and Technical Information (OSTI)

Find software developed by the DOE labs via updated website, ESTSC You can find scientific and technical software resulting from DOE-funded research at the Energy Science and...

380

EA-1465: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

65: Finding of No Significant Impact EA-1465: Finding of No Significant Impact Wind Energy Center EdgeleyKulm Project, North Dakota Basin Electric Power Cooperative, on behalf of...

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

EA-1863: Finding of No Significant Impact | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

63: Finding of No Significant Impact EA-1863: Finding of No Significant Impact Based on the Final EA, DOE has determined that the project (Proposed Action) would not constitute a...

382

EA-0965: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

65: Finding of No Significant Impact EA-0965: Finding of No Significant Impact Cancer Research Center Indiana University School of Medicine Based on the analysis in the EA, the DOE...

383

EA-0531: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Proposed Natural Gas Protection Program for Naval Oil Shale Reserves Nos. 1 and 3 Based on the findings of the EA, DOE has determined that the...

384

EA-1938: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8: Finding of No Significant Impact EA-1938: Finding of No Significant Impact Grieve Unit CO2 Enhanced Recovery Project, Natrona County, WY Western has reviewed BLM's EA "Grieve...

385

NERSC Users Find That Nanodroplets of Water Can Manipulate Graphene...  

NLE Websites -- All DOE Office Websites (Extended Search)

Users Find That Nanodroplets of Water Can Manipulate Graphene NERSC Users Find That Nanodroplets of Water Can Manipulate Graphene April 30, 2010 Contact: Linda Vu, lvu@lbl.gov, +1...

386

EA-1726: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6: Finding of No Significant Impact EA-1726: Finding of No Significant Impact Kahuku Wind Power, LLC, Construction of the Kahuku Wind Power Facility in Kahuku, O'ahu, Hawaii The...

387

EA-1739: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact EA-1739: Finding of No Significant Impact Bandon-Rogue Transmission Line Rebuild Project BPA needs to take action to ensure the integrity and...

388

EIS-0369: Record of Decision and Floodplain Statement of Findings...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of Findings EIS-0369: Record of Decision and Floodplain Statement of Findings Nevada Rail Alignment for the Disposal of Spent Nuclear Fuel and High-Level Radioactive Waste at...

389

Optical double-slit particle measuring system  

DOE Patents (OSTI)

A method for in situ measurement of particle size is described. The size information is obtained by scanning an image of the particle across a double-slit mask and observing the transmitted light. This method is useful when the particle size of primary interest is 3..mu..m and larger. The technique is well suited to applications in which the particles are non-spherical and have unknown refractive index. It is particularly well suited to high temperature environments in which the particle incandescence provides the light source.

Tichenor, D.A.; Wang, J.C.F.; Hencken, K.R.

1982-03-25T23:59:59.000Z

390

EMGeo: Risk Minimizing Software for Finding Offshore Fossil ...  

EMGeo: Risk Minimizing Software for Finding Offshore Fossil Fuels by Fluid Identification. CR-2418, CR-2688,CR-2981

391

Information Update: June 17, 2008 NIST Finds Radiation ...  

Science Conference Proceedings (OSTI)

Information Update: June 17, 2008 NIST Finds Radiation Contamination in Lab Sink. For Immediate Release: June 17, 2008. ...

2010-10-05T23:59:59.000Z

392

Context of '2002: Study Finds that Oil and Gas Industry ...  

U.S. Energy Information Administration (EIA)

Context of '2002: Study Finds that Oil and Gas Industry Responsible for Significant Portion of Louisiana Coastal Wetland Loss'

393

The Particle Adventure | What holds it together? | Weak  

NLE Websites -- All DOE Office Websites (Extended Search)

mass and energy is conserved, some of the original particle's mass is converted into kinetic energy, and the resulting particles always have less mass than the original particle...

394

Argonne CNM News: Medical applications of diamond particles and...  

NLE Websites -- All DOE Office Websites (Extended Search)

Medical applications of diamond particles and surfaces TEM image of nanodiamond particles TEM image of nanodiamond particles Scientists in the Nanofabrication & Devices Group...

395

Composition and Reactions of Atmospheric Aerosol Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

Composition and Reactions of Composition and Reactions of Atmospheric Aerosol Particles Composition and Reactions of Atmospheric Aerosol Particles Print Wednesday, 29 June 2005 00:00 Microscopic aerosol particles in the atmosphere contain carbonaceous components from mineral dust and combustion emissions released from around the world. How long these tiny particles remain in the atmosphere can have a huge impact on the global climate. Measurements based on high-resolution scanning transmission x-ray images obtained at the ALS have revealed chemical reactions on and in atmospheric aerosol particles that caused particle growth while changing organic composition by 13 to 24% per day, an oxidation rate significantly slower than is currently used in atmospheric models. Since oxidation has a strong effect on particle lifetime in the atmosphere, these results will help climate scientists refine the computer models used to predict climate change.

396

Coated Particle Fuel Development Lab (CPFDL) | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Coated Particle Fuel Development Lab Coated Particle Fuel Development Lab May 30, 2013 Computer controlled fluidized bed CVD particle coating system The Coated Particle Fuel Development Laboratory is a modern, integrated facility for laboratory scale fabrication and characterization of uranium-bearing coated particle fuel (CPF). Within this facility, tri-isotropic (TRISO) coatings are deposited on various fuel kernels by chemical vapor deposition (CVD), particles are pressed into fuel compacts for irradiation, and state-of-the-art materials property characterization is performed, all under an NQA-1 compliant Quality Assurance program. Current work includes fabrication and characterization of coated particle fuels to support the Next Generation Nuclear Plant, Advanced Small Modular Reactors, Nuclear Thermal Propulsion, and Advanced Light Water Reactor

397

Composition and Reactions of Atmospheric Aerosol Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

Composition and Reactions of Atmospheric Aerosol Particles Print Composition and Reactions of Atmospheric Aerosol Particles Print Microscopic aerosol particles in the atmosphere contain carbonaceous components from mineral dust and combustion emissions released from around the world. How long these tiny particles remain in the atmosphere can have a huge impact on the global climate. Measurements based on high-resolution scanning transmission x-ray images obtained at the ALS have revealed chemical reactions on and in atmospheric aerosol particles that caused particle growth while changing organic composition by 13 to 24% per day, an oxidation rate significantly slower than is currently used in atmospheric models. Since oxidation has a strong effect on particle lifetime in the atmosphere, these results will help climate scientists refine the computer models used to predict climate change.

398

Flow of particle suspensions through porous media  

DOE Green Energy (OSTI)

A new attempt is made to study the mechanisms of particle invasions into porous media. The following subjects are described: A critical survey of the literature indicating that the mechanism of particle invasions is not known in sufficient detail. The pros and cons of existing particle measuring devices are briefly described. Results from a new laboratory study on particle characterizations are given. The results of the laboratory studies on the flow of particle suspensions through porous media (up to 200 md) are discussed. The effects of flow rate and particle concentrations on the amount of damage (i.e., permeability impairment) and depth of penetration (from core inlet towards outlet) are particularly emphasized. Filter methods (e.g., using millipore filter) cannot be used to determine particle invasions into porous medium. Any predictions of the injection problems based on millipore (or any other filter) measurements are useless and should be discarded.

Vetter, O.J.; Kandarpa, V.; Harouaka, A.

1982-06-22T23:59:59.000Z

399

Composition and Reactions of Atmospheric Aerosol Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

Composition and Reactions of Atmospheric Aerosol Particles Print Composition and Reactions of Atmospheric Aerosol Particles Print Microscopic aerosol particles in the atmosphere contain carbonaceous components from mineral dust and combustion emissions released from around the world. How long these tiny particles remain in the atmosphere can have a huge impact on the global climate. Measurements based on high-resolution scanning transmission x-ray images obtained at the ALS have revealed chemical reactions on and in atmospheric aerosol particles that caused particle growth while changing organic composition by 13 to 24% per day, an oxidation rate significantly slower than is currently used in atmospheric models. Since oxidation has a strong effect on particle lifetime in the atmosphere, these results will help climate scientists refine the computer models used to predict climate change.

400

Neutral particle beam intensity controller  

DOE Patents (OSTI)

A neutral beam intensity controller is provided for a neutral beam generator in which a neutral beam is established by accelerating ions from an ion source into a gas neutralizer. An amplitude modulated, rotating magnetic field is applied to the accelerated ion beam in the gas neutralizer to defocus the resultant neutral beam in a controlled manner to achieve intensity control of the neutral beam along the beam axis at constant beam energy. The rotating magnetic field alters the orbits of ions in the gas neutralizer before they are neutralized, thereby controlling the fraction of neutral particles transmitted out of the neutralizer along the central beam axis to a fusion device or the like. The altered path or defocused neutral particles are sprayed onto an actively cooled beam dump disposed perpendicular to the neutral beam axis and having a central open for passage of the focused beam at the central axis of the beamline. Virtually zero therough 100% intensity control is achieved by varying the magnetic field strength without altering the ion source beam intensity or its species yield.

Dagenhart, William K. (Oak Ridge, TN)

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

The Particle Adventure | Particle decays and annihiliations | Confusion  

NLE Websites -- All DOE Office Websites (Extended Search)

Confusion about Confusion about decays Confusion about decays Many heavy elements decay into simpler things. But a close observation of these decays reveals several confusing problems. Consider uranium-238 decay. A lump of uranium-238 will decay at a constant rate such that in 4,460,000,000 years -- give or take a few days -- half the uranium will be gone. But there is no way to tell when a specific uranium atom will decay; it could decay five minutes from now, or in ten billion years. Why will an atom decay only according to some probability? Uranium-238 has a mass of 238.0508 atomic mass units (u). It can decay into thorium (234.0436 u) and an alpha particle (4.0026 u). But uranium's mass minus the mass of its decay products is 0.0046 u. Why is there missing mass?

402

EA-1704: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1704: Finding of No Significant Impact Construction and Operation of a Proposed Cellulosic Biorefinery, BlueFire Fulton Renewable Energy, LLC, Fulton, Mississippi The Department of Energy completed an Environmental Assessment and Notice of Wetland Involvement that analyzed the potential environmental impacts associated with the design, construction, and operation of the BlueFire Fulton Renewable Energy, LLC Cellulosic Biorefinery near the city of Fulton, Mississippi. Mitigated Finding of No Significant Impact BlueFire Fulton Renewable Energy, LLC Cellulosic Biorefinery Project More Documents & Publications EA-1704: Mitigation Action Plan EA-1704: Final Environmental Assessment EA-1789: Finding of No Significant Impact

403

EA-1506: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1506: Finding of No Significant Impact Changing World Technologies' Thermal Conversion Process Commercial Demonstration Plant, Weld County, Colorado This Environmental Assessment examines the potential environmental impacts of the Department of Energy's decision to support the Changing World Technologies' Thermal Conversion Process project in unincorporated Weld County, Colorado, including construction and operation of the plant, as well as a No Action Alternative. Finding of No Significant Impact for Changing World Technologies' Thermal Conversion Process Commercial Demonstration Plant, Weld County, Colorado, DOE/EA-1506 (November 2004) More Documents & Publications EA-1506: Final Environmental Assessment EA-1597: Finding of No Significant Impact

404

EA-1700: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

700: Finding of No Significant Impact 700: Finding of No Significant Impact EA-1700: Finding of No Significant Impact Computational Research and Theory Facility Project, Alameda County, California The action proposed by the Department of Energy is to relocate and consolidate Advanced Scientific Computing Research funded Lawrence Berkeley National Laboratory (LBNL) programs with other LBNL/University of California Berkeley programs that focus on computational and computer science research in a new facility on the LBNL site. Finding of No Significant Impact for the Proposed Computational Research and Theory Facility Project at Lawrence Berkeley National Laboratory Berkeley, California More Documents & Publications EA-1700: Final Environmental Assessment EA-1541: Finding of No Significant Impact

405

EA-1712: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2: Finding of No Significant Impact 2: Finding of No Significant Impact EA-1712: Finding of No Significant Impact Exide Technologies Electric Drive Vehicle Battery and Component Manufacturing Initiative Application, Bristol, Tennessee, and Columbus, Georgia Based on the analyses in the environmental assessment, DOE determined that its Proposed Action, awarding a federal grant to Exide Technologies to facilitate expansion of operations at two existing Exide facilities, would result in no significant adverse impacts. Finding of No Significant Impact for Exide Technoligies Electric Drive Vehicles Battery and Component Manufacturing Initiative Application, Bristol, TN and Columbus, GA More Documents & Publications EA-1712: Final Environmental Assessment EA-1722: Finding of No Significant Impact

406

Energy States of Colored Particle in a Chromomagnetic Field  

E-Print Network (OSTI)

The unitary transformation, which diagonalizes squared Dirac equation in a constant chromomagnetic field is found. Applying this transformation, we find the eigenfunctions of diagonalized Hamiltonian, that describe the states with definite value of energy and call them energy states. It is pointed out that, the energy states are determined by the color interaction term of the particle with the background chromofield and this term is responsible for the splitting of the energy spectrum. We construct supercharge operators for the diagonal Hamiltonian, that ensure the superpartner property of the energy states.

Sh. Mamedov

2006-08-20T23:59:59.000Z

407

Ratchet transport for a chain of interacting charged particles  

E-Print Network (OSTI)

We study analytically and numerically the overdamped, deterministic dynamics of a chain of {\\it charged}, interacting particles driven by a longitudinal alternating electric field and additionally interacting with a smooth ratchet potential. We derive the equations of motion, analyze the general properties of their solutions and find the drift criterion for chain motion. For ratchet potentials of the form of a double-sine and a phase-modulated sine it is demonstrated that both, a so-called integer and fractional transport of the chain can occur. Explicit results for the directed chain transport for these two classes of ratchet potentials are presented.

S. I. Denisov; E. S. Denisova; P. Hnggi

2006-03-15T23:59:59.000Z

408

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Services » NEPA Documents » Findings of No Significant Impact Services » NEPA Documents » Findings of No Significant Impact (FONSI) Findings of No Significant Impact (FONSI) Findings of No Significant Impact are public documents issued by a Federal agency briefly presenting the reasons why an action for which the agency has prepared an environmental assessment will not have a significant effect on the human environment and, therefore, will not require preparation of an environmental impact statement. If you have any trouble finding a specific document, please contact AskNEPA@hq.doe.gov for assistance. DOCUMENTS AVAILABLE FOR DOWNLOAD October 9, 2002 EA-1434: Finding of No Significant Impact Sunrise II Water Supply Line, Kern County, California October 2, 2002 EA-1449: Finding of No Significant Impact Commercial Demonstration of the Manufactured Aggregate Processing

409

EA-0476: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-0476: Finding of No Significant Impact EA-0476: Finding of No Significant Impact EA-0476: Finding of No Significant Impact Installation and Operation of the Plant-wide Fire Protection Systems and Related Domestic Water Supply Systems The Department of Energy prepared EA-0476 for the Installation and Operation of the Plantwide Fire Protection Systems and Related Domestic Drinking Water Systems at the Savannah River Site in Aiken, South Carolina. DOE determined it is not a major threat to the environment and is issuing a Finding of No Significant Impact. Finding of No Significant Impact for the Installation and Operation of the Plantwide Fire Protection Systems and Related Domestic Drinking Water Systems More Documents & Publications EA-0873: Finding of No Significant Impact EA-0826: Revised Finding of No Significant Impact

410

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

July 29, 2010 July 29, 2010 EA-1698: Finding of No Significant Impact Baldwin Wind Energy Center Project July 23, 2010 EA-1740: Finding of No Significant Impact Thermal Energy Corporation Combined Heat and Power Project Houston, Texas July 23, 2010 EA-1801: Finding of No Significant Impact Granite Reliable Power Wind Project, Coos County, New Hampshire July 13, 2010 EA-1743: Finding of No Significant Impact Air Products and Chemicals, Inc. Waste Energy Project at the AK Steel Corporation Middletown Works, Middletown, Ohio June 21, 2010 EA-1733: Finding of No Significant Impact Calpine Enhanced Geothermal Systems Project, Sonoma County, California June 15, 2010 EA-1539: Finding of No Significant Impact North Area Right-of-Way Maintenance, California June 15, 2010 EA-1685: Finding of No Significant Impact

411

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

July 22, 1999 July 22, 1999 EA-1238: Finding of No Significant Impact Proposed Construction and Operation of the Nonproliferation and International Security Center June 4, 1999 EA-1290: Finding of No Significant Impact Disposition of Russian Federation Titled Natural Uranium May 27, 1999 EA-1190: Finding of No Significant Impact Wastewater Treatment Capability Upgrade May 6, 1999 EA-1135: Finding of No Significant Impact Offsite Thermal Treatment of Low-level Mixed Waste March 22, 1999 EA-1292: Finding of No Significant Impact On-site Treatment of Low Level Mixed Waste February 22, 1999 EA-1116: Finding of No Significant Impact Kalina Geothermal Demonstration Project, Steamboat Springs, Nevada February 11, 1999 EA-1276: Finding of No Significant Impact Widening Trench 36 of the 218-E-12B Low-level Burial Ground, Hanford Site,

412

Method for producing ceramic particles and agglomerates  

DOE Patents (OSTI)

A method for generating spherical and irregularly shaped dense particles of ceramic oxides having a controlled particle size and particle size distribution. An aerosol containing precursor particles of oxide ceramics is directed into a plasma. As the particles flow through the hot zone of the plasma, they melt, collide, and join to form larger particles. If these larger particles remain in the hot zone, they continue melting and acquire a spherical shape that is retained after they exit the hot zone, cool down, and solidify. If they exit the hot zone before melting completely, their irregular shape persists and agglomerates are produced. The size and size distribution of the dense product particles can be controlled by adjusting several parameters, the most important in the case of powder precursors appears to be the density of powder in the aerosol stream that enters the plasma hot zone. This suggests that particle collision rate is responsible for determining ultimate size of the resulting sphere or agglomerate. Other parameters, particularly the gas flow rates and the microwave power, are also adjusted to control the particle size distribution.

Phillips, Jonathan (Santa Fe, NM); Gleiman, Seth S. (Santa Fe, NM); Chen, Chun-Ku (Albuquerque, NM)

2001-01-01T23:59:59.000Z

413

Vapor scavenging by atmospheric aerosol particles  

Science Conference Proceedings (OSTI)

Particle growth due to vapor scavenging was studied using both experimental and computational techniques. Vapor scavenging by particles is an important physical process in the atmosphere because it can result in changes to particle properties (e.g., size, shape, composition, and activity) and, thus, influence atmospheric phenomena in which particles play a role, such as cloud formation and long range transport. The influence of organic vapor on the evolution of a particle mass size distribution was investigated using a modified version of MAEROS (a multicomponent aerosol dynamics code). The modeling study attempted to identify the sources of organic aerosol observed by Novakov and Penner (1993) in a field study in Puerto Rico. Experimentally, vapor scavenging and particle growth were investigated using two techniques. The influence of the presence of organic vapor on the particle`s hydroscopicity was investigated using an electrodynamic balance. The charge on a particle was investigated theoretically and experimentally. A prototype apparatus--the refractive index thermal diffusion chamber (RITDC)--was developed to study multiple particles in the same environment at the same time.

Andrews, E.

1996-05-01T23:59:59.000Z

414

Beauty is more attractive: Particle Production and Moduli trapping with Higher Dimensional Interaction  

E-Print Network (OSTI)

We study quantum effects on moduli dynamics arising from the particle production near the enhanced symmetry point (ESP). We paid special attention to the non-conventional interactions, which are suppressed by the cutoff scale of the effective action but the power of the field is larger. This kind of interaction is sometimes called the "higher dimensional" interaction. Considering the higher dimensional interaction, we find that the particle production is significant in a large area, which is even larger than the area that is expected from the conventional interaction. It is possible to find this possibility from the trivial adiabatic condition; however the quantitative estimation of the particle production and the trapping of the field in motion are far from trivial. In this paper we study the particle production and the trapping in detail, using both the analytical and the numerical calculations, to find a clear and intuitive result that supports trapping in a vast variety of theories. Our study shows that the trapping is possible by the non-conventional interaction that has been disregarded in previous works. Some phenomenological models of the particle physics will be mentioned to complement the discussion.

Seishi Enomoto; Satoshi Iida; Nobuhiro Maekawa; Tomohiro Matsuda

2013-10-17T23:59:59.000Z

415

Particle Physics at Discovery's Horizon  

NLE Websites -- All DOE Office Websites (Extended Search)

uslhc.us uslhc.us Particle Physics at Discovery's Horizon September 2012 Discoveries from the Compact Muon Solenoid experiment at the Large Hadron Collider at CERN in Geneva, Switzerland, promise to rev- olutionize our understanding of the universe. With more than 1000 participants from 49 institutions across the country, US CMS is the largest national group in the 3,600-member international CMS collaboration. Supported by the US Department of Energy's Office of Science and the National Science Foundation, the US CMS collaboration consists of more than 430 physicists, nearly 200 graduate students and more than 300 engineers, tech- nicians and computer scientists. The US CMS collaboration plays a vital role in the operation of the CMS detector and analysis of data from LHC collisions. US groups

416

Phosphorus doping a semiconductor particle  

DOE Patents (OSTI)

A method of phosphorus doping a semiconductor particle using ammonium phosphate is disclosed. A p-doped silicon sphere is mixed with a diluted solution of ammonium phosphate having a predetermined concentration. These spheres are dried with the phosphorus then being diffused into the sphere to create either a shallow or deep p-n junction. A good PSG glass layer is formed on the surface of the sphere during the diffusion process. A subsequent segregation anneal process is utilized to strip metal impurities from near the p-n junction into the glass layer. A subsequent HF strip procedure is then utilized to removed the PSG layer. Ammonium phosphate is not a restricted chemical, is inexpensive, and does not pose any special shipping, handling, or disposal requirement. 1 fig.

Stevens, G.D.; Reynolds, J.S.

1999-07-20T23:59:59.000Z

417

Non-accelerator particle physics  

SciTech Connect

The goals of this research are the experimental testing of fundamental theories of physics such as grand unification and the exploration of cosmic phenomena through the techniques of particle physics. We are working on the MACRO experiment, which employs a large area underground detector to search for grand unification magnetic monopoles and dark matter candidates and to study cosmic ray muons as well as low and high energy neutrinos: the {nu}IMB project, which seeks to refurbish and upgrade the IMB water Cerenkov detector to perform an improved proton decay search together with a long baseline reactor neutrino oscillation experiment using a kiloton liquid scintillator (the Perry experiment); and development of technology for improved liquid scintillators and for very low background materials in support of the MACRO and Perry experiments and for new solar neutrino experiments. 21 refs., 19 figs., 6 tabs.

Steinberg, R.I.; Lane, C.E.

1991-09-01T23:59:59.000Z

418

GPU COMPUTING FOR PARTICLE TRACKING  

Science Conference Proceedings (OSTI)

This is a feasibility study of using a modern Graphics Processing Unit (GPU) to parallelize the accelerator particle tracking code. To demonstrate the massive parallelization features provided by GPU computing, a simplified TracyGPU program is developed for dynamic aperture calculation. Performances, issues, and challenges from introducing GPU are also discussed. General purpose Computation on Graphics Processing Units (GPGPU) bring massive parallel computing capabilities to numerical calculation. However, the unique architecture of GPU requires a comprehensive understanding of the hardware and programming model to be able to well optimize existing applications. In the field of accelerator physics, the dynamic aperture calculation of a storage ring, which is often the most time consuming part of the accelerator modeling and simulation, can benefit from GPU due to its embarrassingly parallel feature, which fits well with the GPU programming model. In this paper, we use the Tesla C2050 GPU which consists of 14 multi-processois (MP) with 32 cores on each MP, therefore a total of 448 cores, to host thousands ot threads dynamically. Thread is a logical execution unit of the program on GPU. In the GPU programming model, threads are grouped into a collection of blocks Within each block, multiple threads share the same code, and up to 48 KB of shared memory. Multiple thread blocks form a grid, which is executed as a GPU kernel. A simplified code that is a subset of Tracy++ [2] is developed to demonstrate the possibility of using GPU to speed up the dynamic aperture calculation by having each thread track a particle.

Nishimura, Hiroshi; Song, Kai; Muriki, Krishna; Sun, Changchun; James, Susan; Qin, Yong

2011-03-25T23:59:59.000Z

419

Elementary particle physics---Experimental  

SciTech Connect

We are continuing a research program in high energy experimental particle physics and particle astrophysics. Studies of high energy hadronic interactions were performed using several techniques, in addition, a high energy leptoproduction experiment was continued at the Fermi National Accelerator Laboratory. We are participants in a joint US/Japan program to study nuclear interactions at energies two orders of magnitude greater than those of existing accelerators. The data are being collected with ballon-borne emulsion chambers. The properties of nuclear interactions at these high energies will reveal whether new production mechanisms come into play due to the high nuclear densities and temperatures obtained. We carried out closely related studies of hadronic interactions in emulsions exposed to high energy accelerator beams. We are members of a large international collaboration which has exposed emulsion chamber detectors to beams of {sup 32}S and {sup 16}O with energy 60 and 200 GeV/n at CERN and 15 GeV/n at Brookhaven National Laboratory. The primary objectives of this program are to determine the existence and properties of the hypothesized quark-gluon phase of matter, and its possible relation to a variety of anomalous observations. Studies of leptoproduction processes at high energies involve two separate experiments, one using the Tevatron 500 GeV muon beam and the other exploring the >TeV regime. We are participants in Fermilab experiment E665 employing a comprehensive counter/streamer chamber detector system. During the past year we joined the DUMAND Collaboration, and have been assigned responsibility for development and construction of critical components for the deep undersea neutrino detector facility, to be deployed in 1991. In addition, we are making significant contributions to the design of the triggering system to be used.

Lord, J.J.; Burnett, T.H.; Wilkes, R.J.

1990-09-20T23:59:59.000Z

420

The Particle Adventure | How do we experiment with tiny particles? | What  

NLE Websites -- All DOE Office Websites (Extended Search)

What makes particles go in a circle? What makes particles go in a circle? What makes particles go in a circle? To keep any object going in a circle, there needs to be a constant force on that object towards the center of the circle. In a circular accelerator, an electric field makes the charged particle accelerate, while large magnets provide the necessary inward force to bend the particle's path in a circle. (In the image to the left, the particle's velocity is represented by the white arrow, while the inward force supplied by the magnet is the yellow arrow.) The presence of a magnetic field does not add or subtract energy from the particles. The magnetic field only bends the particles' paths along the arc of the accelerator. Magnets are also used to direct charged particle beams toward targets and to "focus" the beams, just as optical lenses focus light.

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

New Vapor-Particle Separator Improves Understanding of ...  

Very high particle transmission efficiency faithfully portrait the dynamics of the engine emission ... Investigation of particle thermogram on-line

422

New Vapor-Particle Separator Improves Understanding of ...  

Very high particle transmission efficiency faithfully portrait the dynamics of the engine emission ... Investigation of particle thermogram on-lin ...

423

High Speed Particle Image Velocimetry Overview  

NLE Websites -- All DOE Office Websites (Extended Search)

Speed Particle Image Velocimetry Speed Particle Image Velocimetry Overview The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing U.S. Non- provisional Patent Application 12/765,317 entitled "Method of Particle Trajectory Recognition in Particle Flows of High Particle Concentration Using a Candidate Trajectory Tree Process with Variable Search Areas." This patent application discloses a novel method to simultaneously track the motion of high numbers of object images under extreme, high concen- tration conditions. Although the software is designed to simultaneously track large numbers of particle images in flow fields, it can track any type of object whose locations are available at consecutive time increments (e.g.,

424

Fine Particle Emissions from Combustion Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Fine Particle Emissions from Combustion Systems Fine Particle Emissions from Combustion Systems Speaker(s): Allen Robinson Date: November 11, 2005 - 12:00pm Location: 90-3122 Combustion systems such as motor vehicles and power plants are major sources of fine particulate matter. This talk describes some of the changes in fine particle emissions that occur as exhaust from combustion systems mix with background air. This mixing cools and dilutes the exhaust which influences gas-particle partitioning of semi-volatile species, the aerosol size distribution, and the fine particle mass. Dilution sampling is used to characterize fine particle emissions from combustion systems because it simulates the rapid cooling and dilution that occur as exhaust mixes with the atmosphere. Results from dilution sampler

425

Nanometer Particles: Modern Methods of Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Nanometer Particles: Modern Methods of Research Nanometer Particles: Modern Methods of Research Speaker(s): Rashid Mavliev Date: August 10, 1999 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Richard Sextro "Nanometer particles" (with diameter below 50 - 100 nm) have attracted attention during recent years because of their increasing role in industries such as powder technology and semiconductors. They also play a critical role in atmospheric processes. At this size range the properties of particles are different from those of bulk materials and single molecules. This promises new technological innovations and potential scientific discoveries. At the same time it makes the detection and characterization of such particles imperative. Optical methods, which allow for simultaneous measurement of size and concentration of particles

426

Mapping Particle Charges in Battery Electrodes  

NLE Websites -- All DOE Office Websites (Extended Search)

Mapping Particle Charges in Battery Electrodes Print Mapping Particle Charges in Battery Electrodes Print The deceivingly simple appearance of batteries masks their chemical complexity. A typical lithium-ion battery in a cell phone consists of trillions of particles. When a lithium-ion battery is charged or discharged lithium ions move from one electrode to another, filling and unfilling individual, variably-sized battery particles. The rates of these processes determine how much power a battery can deliver. Despite the technological innovations and widespread use of batteries, the mechanism behind charging and discharging particles remains largely a mystery, partly because it is difficult to visualize the motion of lithium ions for a significant number of battery particles at nanoscale resolution.

427

Mapping Particle Charges in Battery Electrodes  

NLE Websites -- All DOE Office Websites (Extended Search)

Mapping Particle Charges in Battery Electrodes Print Mapping Particle Charges in Battery Electrodes Print The deceivingly simple appearance of batteries masks their chemical complexity. A typical lithium-ion battery in a cell phone consists of trillions of particles. When a lithium-ion battery is charged or discharged lithium ions move from one electrode to another, filling and unfilling individual, variably-sized battery particles. The rates of these processes determine how much power a battery can deliver. Despite the technological innovations and widespread use of batteries, the mechanism behind charging and discharging particles remains largely a mystery, partly because it is difficult to visualize the motion of lithium ions for a significant number of battery particles at nanoscale resolution.

428

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

February 25, 2011 February 25, 2011 EA-1700: Finding of No Significant Impact Computational Research and Theory Facility Project, Alameda County, California February 23, 2011 EA-1815: Finding of No Significant Impact Cuyahoga County Agricultural Society Wind Energy Project, Berea, Cuyahoga County, Ohio February 23, 2011 EA-1819: Finding of No Significant Impact Kilowatts for Kenston Wind Energy Project, Chagrin Falls, Geauga County, Ohio February 23, 2011 EA-1816: Finding of No Significant Impact Town of Hempstead Wind to Hydrogen Project, Hempstead, New York February 22, 2011 EA-1796: Finding of No Significant Impact Mesquite Solar Energy Project near Gillespie, Arizona February 18, 2011 EA-1834: Finding of No Significant Impact Proposed Advanced Technologies Vehicles Manufacturing Project, Dearborn,

429

EA-1894: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1894: Finding of No Significant Impact Albeni Falls Flexible Winter Lake Operations, Bonner, Idaho As a result of the analysis in this EA, I have the following findings. I find that: 1) the FWPO is not a substantial change from the SOR EIS proposed action relevant to environmental concerns; and, 2) there are no significant new circumstances or information relevant to environmental concerns and bearing on the SOR EIS proposed action or its impacts (40 C.F.R. §1502.9(c)). I have determined for my respective agency that preparation of a new or supplemental Environmental Impact Statement is not warranted to implement FWPO. As a result of the analysis in this EA, I also find that the actions proposed andn evaluated in this EA do not result in

430

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

July 22, 2003 July 22, 2003 EA-1406: Finding of No Significant Impact Ground Water Compliance at the New Rifle, Colorado, UMTRA Project Site July 11, 2003 EA-1475: Finding of No Significant Impact Chariton Valley Biomass Project, Colorado July 1, 2003 EA-1440: Finding of No Signficant Impact National Renewable Energy Laboratory's South Table Mountain Complex June 27, 2003 EA-1455: Finding of No Significant Impact Enhanced Operations of the Advanced Photon Source at Argonne National Laboratory-East, Argonne, Illinois June 1, 2003 EA-1175: Finding of No Significant Impact (Addendum) Addendum for the Proposed Title Transfer of East Tennessee Technology Park Land and Facilities April 24, 2003 EA-1372: Finding of No Significant Impact Idaho National Enginerring and Environmental Laboratory Wildland Fire

431

EA-1732: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1732: Finding of No Significant Impact EA-1732: Finding of No Significant Impact EA-1732: Finding of No Significant Impact Department of Energy Loan to Next Autoworks Louisiana, LLC (Formerly V-Vehicle Company) for an Advanced Technology Gasoline Vehicle Manufacturing Project in Monroe, Louisiana Department of Energy proposes award a federal grant to Johnson Controls, Inc., and ENTEK International, LLC to establish an advanced lithium ion battery manufacturing facility. Finding of No Significant Impact for Johnson Controls, Inc., and Entek International, LLC Electric Drive Vehicle Battery and Component Manufacturing Initiative Application, Holland, Michigan; Lebanon, Oregon, and Milwaukee, Wisconsin. More Documents & Publications EA-1732: Floodplain Statement of Findings EA-1732: Finding of No Significant Impact

432

EA-1332: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

332: Finding of No Significant Impact 332: Finding of No Significant Impact EA-1332: Finding of No Significant Impact Leasing Land for the Siting, Construction and Operation of a Commercial AM Radio Antenna at Los Alamos National Laboratory DOE finds that there would be no significant impact with proceeding with its proposal to lease land for the siting, construction and operation of a commercial AM radio antenna at the Los Alamos National Laboratory. This finding is based on the EA that analyzes the consequences of the relevant issue of environmental concern. The DOE makes this Finding of No Significant Impact pursuant to the NEPA act of 1969, the Council on Environmental Quality Regulations for implementing the NEPA, and the DOE NEPA Implementing Procedures. Therefore, no Environmental Impact

433

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

February 7, 2005 February 7, 2005 EA-1485: Finding of No Significant Impact Nisqually Transmission Line Relocation Project January 24, 2005 EA-1503: Finding of No Significant Impact Vermont Electric Power Company Proposed Northern Loop Project December 10, 2004 EA-1488: Finding of No Significant Impact U-233 Disposition, Medical Isotope Production, and Building 3019 Complex Shutdown at the Oak Ridge National Laboratory, Oak Ridge, Tennessee December 9, 2004 EA-1498: Finding of No Significant Impact Advanced Coal Utilization Byproduct Beneficiation Processing Plant Ghent Power Station, Carroll County, Kentucky December 3, 2004 EA-1493: Finding of No Significant Impact Greenidge Multi-Pollutant Control Project, AES Greenidge Station, Dresden, New York November 23, 2004 EA-1506: Finding of No Significant Impact

434

EA-1814: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1814: Finding of No Significant Impact City of Montpelier Combined Heat and Power, and District Energy System, Montpelier, Vermont The U.S. Department of Energy is proposing to authorized the expenditure of Federal funding by the City of Montpelier for the design, permitting, and construction of a combined heat and power (CHP) and district energy system (Montpelier CHP District Energy Project). Finding of No Significant Impact and Floodplain Statement of Findings for City of Montpelier Combined Heat and Power and District Energy System, Montpelier, Vermont, DOE/EA-1814 (July 2011) More Documents & Publications EA-1814: Final Environmental Assessment EA-1814: Draft Environmental Assessment EA-1814: DOE Notice of Availability of the Finding of No Significant Impact

435

EA-0923: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

923: Finding of No Significant Impact 923: Finding of No Significant Impact EA-0923: Finding of No Significant Impact Winnett School District Boiler Replacement Project Based on the analysis in the Environmental Assessment, the Department has determined that the installation of a new coal-fired system at the Winnett School District Complex does not constitute a major federal action significantly affecting the quality of the human environment within the meaning of the NEPA. Therefore, the preparation of an Environmental Impact Statement is not required and the Department is issuing this Finding of No Significant Impact. EA-0923-FONSI-1993.pdf More Documents & Publications EA-0923: Final Environmental Assessment EA-1183: Finding of No Significant Impact EA-0962: Finding of No Significant Impact

436

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

October 5, 2010 October 5, 2010 EA-1827: Finding of No Significant Impact Suniva Inc's Artisun Project in Thomas Township, Saginaw, Michigan October 1, 2010 EA-1784: Finding of No Significant Impact Fotowatio Nevada Solar, LLC's APEX Solar Power Project in Clark County, Nevada September 30, 2010 EA-1790: Finding of No Significant Impact Construction and Operation of a Heterogeneous Feed Biorefinery, Enerkem Corporation, Pontotoc, Mississippi September 30, 2010 EA-1832: Finding of No Significant Impact Rainer Biogas LLC Community Anaerobic Manure Digester, Enumclaw, King County, Washington September 30, 2010 EA-1762: Finding of No Significant Impact Wellford Landfill Methane and Greenhouse Gas to Energy Project, Spartanburg County, South Carolina September 23, 2010 EA-1761: Finding of No Significant Impact and Floodplain Statement of

437

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Services » NEPA Documents » Findings of No Significant Impact Services » NEPA Documents » Findings of No Significant Impact (FONSI) Findings of No Significant Impact (FONSI) Findings of No Significant Impact are public documents issued by a Federal agency briefly presenting the reasons why an action for which the agency has prepared an environmental assessment will not have a significant effect on the human environment and, therefore, will not require preparation of an environmental impact statement. If you have any trouble finding a specific document, please contact AskNEPA@hq.doe.gov for assistance. DOCUMENTS AVAILABLE FOR DOWNLOAD November 13, 2013 EA-1965: Finding of No Significant Impact Florida Atlantic University Southeast National Marine Renewable Energy Center's Offshore Marine Hydrokinetic Technology Testing Project, Florida

438

EA-1647: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7: Finding of No Significant Impact 7: Finding of No Significant Impact EA-1647: Finding of No Significant Impact Construction and Operation of a Proposed Cellulosic Ethanol Plant, Range Fuels Soperton Plant, LLC (formerly Range Fuels Inc.), Treutlen County, Georgia The Environmental Assessment (EA) analyzes the potential impacts associated with the construction and operation of a proposed cellulosic ethanol plant in Treutlen County, Georgia. The Department of Energy has issued this Finding of No Significant Impact. Finding of No Significant Impact for the Proposed Cellulosic Ethanol Plant, Range Fuels Soperton Plant, LLC (formerly Range Fuels Inc.) Treutlen County, Georgia, DOE/EA 1647 (January 2009) More Documents & Publications EA-1597: Finding of No Significant Impact EA 1647: Supplemental Environmental Assessment

439

EA-0400: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

400: Finding of No Significant Impact 400: Finding of No Significant Impact EA-0400: Finding of No Significant Impact Consolidated Incineration Facility at the Savannah River Site, Aiken, SC The U.S. Department of Energy (DOE) has prepared an environmental assessment (EA) (DOE/EA-0400) for the proposed construction and operation of the Consolidated Incineration Facility (CIF) at the Savannah River Site (SRS), Aiken, South Carolina. Based on the analysis presented in the EA, DOE issued a proposed finding of no significant impact (FONSI) on June 24, 1992. Finding of No Significant Impact, Consolidated Incineration Facility at the Savannah River Site, Aiken, SC More Documents & Publications EIS-0217: Record of Decision EA-0179: Finding of No Significant Impact EA-1308: Final Environmental Assessment

440

EA-1853: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1853: Finding of No Significant Impact Perrin Ranch Wind Energy Interconnection Project, Coconino County, Arizona Based on findings and analysis in the EA, Western has determined that with the resource protection measures, the Perrin Ranch Wind Energy Interconnection Project (Proposed Action) would not result in any significant environmental impacts. Therefore, preparation of environmental impact statement (EIS) will not be required. The basis for this determination is described in this FONSI. Finding of No Significant Impact and Floodplain Statement of Findings for Perrin Ranch Wind Energy Interconnection Project, DOE/EA-1853 (July 2011) More Documents & Publications EA-1853: Final Environmental Assessment EIS-0427: Notice of Intent to Prepare an Environmental Impact Statement and

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

EA-1714: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4: Finding of No Significant Impact 4: Finding of No Significant Impact EA-1714: Finding of No Significant Impact Toda America, Incorporated, Electric Drive Vehicle Battery and Component Manufacturing Initiative Project, Battle Creek, Michigan Based on the analyses in the Environmental Assessment, DOE determined that it;s proposed action, awarding a Federal grant to Toda America, Incorporated for the construction of a new manufacturing plant, would result in no significant adverse impacts. Finding of No Significant Impact for Electric Drive Vehicle Battery and Component Manufacturing Initiative Project Toda America, Incorporated Battle Creek, Michigan More Documents & Publications EA 1714: Final Environmental Assessment EA-1711: Finding of No Significant Impact EA-1709: Finding of No Significant Impact

442

EA-1784: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1784: Finding of No Significant Impact EA-1784: Finding of No Significant Impact EA-1784: Finding of No Significant Impact Fotowatio Nevada Solar, LLC's APEX Solar Power Project in Clark County, Nevada The Department of Energy is adopting an environmental assessment completed by the U.S. Department of the Interior's Bureau of Land Management in August 2010 that analyzed the potential environmental impacts associated with the construction and startup of Fotowatio Nevada Solar, LLC's Apex Solar Power Project located in Clark County, Nevada. Finding of No Significant Impact Department of Energy Loan Guarantee for Fotowatio Nevada Solar, LLC's Apex Solar Power in Clark County, Nevada More Documents & Publications EA-1797: Finding of No Significant Impact EA-1801: Finding of No Significant Impact

443

EA-1784: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4: Finding of No Significant Impact 4: Finding of No Significant Impact EA-1784: Finding of No Significant Impact Fotowatio Nevada Solar, LLC's APEX Solar Power Project in Clark County, Nevada The Department of Energy is adopting an environmental assessment completed by the U.S. Department of the Interior's Bureau of Land Management in August 2010 that analyzed the potential environmental impacts associated with the construction and startup of Fotowatio Nevada Solar, LLC's Apex Solar Power Project located in Clark County, Nevada. Finding of No Significant Impact Department of Energy Loan Guarantee for Fotowatio Nevada Solar, LLC's Apex Solar Power in Clark County, Nevada More Documents & Publications EA-1797: Finding of No Significant Impact EA-1801: Finding of No Significant Impact EA-1848

444

Findings of No Significant Impact (FONSI) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

April 1, 1996 April 1, 1996 EA-1120: Finding of No Significant Impact Solid Residues Treatment, Repackaging and Storage at the Rocky Flats Environmental Technology Site April 1, 1996 EA-1147: Finding of No Significant Impact Low Energy Demonstration Accelerator Tech Area 53 February 9, 1996 EA-1110: Finding of No Significant Impact Use of Herbicide for Vegetation Control at VHF Stations, Microwave Stations, Electrical Substations, and Pole Yards February 1, 1996 EA-1117: Finding of No Significant Impact Management of Spent Nuclear Fuel on the Oak Ridge Reservation, Oak Ridge, Tennessee December 26, 1995 EA-1132: Finding of No Significant Impact Protected Area Reconfiguration Project December 21, 1995 EA-1137: Finding of No Significant Impact Nonnuclear Consolidation Weapons Production Support Project for the Kansas

445

EA-1802: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1802: Finding of No Significant Impact Chicago View Wind Project Chicago Heights, Cook County, Illinois The Department of Energy's Proposed Action is to authorize the expenditure of Federal funding appropriated under the American Recovery and Reinvestment Act of 2009 to design, permit, and construct the Chicago View Wind Project, a 1.5-megawatt wind turbine that would be sited on top of a construction debris landfill in Chicago Heights, southern Cook County, Illinois. Finding of No Significant Impact Chicago View Wind Project, Chicago Heights, Cook County, Illinois, DOE/EA-1802 (February 2011) More Documents & Publications EA-1802: Final Environmental Assessment EA-1807: Finding of No Significant Impact EA-1753: Finding of No Significant Impact

446

EA-1677: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1677: Finding of No Significant Impact EA-1677: Finding of No Significant Impact EA-1677: Finding of No Significant Impact Conveyance and Transfer of the Two Land Tracts Pursuant to Public Law 111-11, Section 13005, Albuquerque, New Mexico DOE/EA-1677: Finding of No Significant Impact for the Final Environmental Assessment Addressing the Conveyance and Transfer of the Two Land Tracts Pursuant to Public Law 111-11, Section 13005 (05/06/10) DOE/EA-1677: Finding of No Significant Impact for the Final Environmental Assessment Addressing the Conveyance and Transfer of the Two Land Tracts Pursuant to Public Law 111-11, Section 13005 (05/06/10) More Documents & Publications EA-1677: Final Environmental Assessment Lessons Learned Quarterly Report, September 2010 EA-1375: Finding of No Significant Impact

447

EA-1732: Floodplain Statement of Findings | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2: Floodplain Statement of Findings 2: Floodplain Statement of Findings EA-1732: Floodplain Statement of Findings Next Autoworks Louisiana, LLC (Formerly V-Vehicle Company) and Advanced Technology Gasoline Vehicle Manufacturing Project in Monroe, Louisiana The U.S. Department of Energy proposed action is to issue a loan to Next Autoworks Louisiana, LLC for the production of an advanced technology gasoline-powered vehicle named the V-Car. Floodplain Statement of Findings Department of Energy Loan to Next Autoworks Louisiana, LLC (Formerly V-Vehicle Company) for and Advanced Technology Gasoline Vehicle Manufacturing Project in Monroe, Louisiana. More Documents & Publications EA-1732: Finding of No Significant Impact EA-1732: Finding of No Significant Impact EA-1732: Final Environmental Assessment

448

EA-1714: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1714: Finding of No Significant Impact EA-1714: Finding of No Significant Impact EA-1714: Finding of No Significant Impact Toda America, Incorporated, Electric Drive Vehicle Battery and Component Manufacturing Initiative Project, Battle Creek, Michigan Based on the analyses in the Environmental Assessment, DOE determined that it;s proposed action, awarding a Federal grant to Toda America, Incorporated for the construction of a new manufacturing plant, would result in no significant adverse impacts. Finding of No Significant Impact for Electric Drive Vehicle Battery and Component Manufacturing Initiative Project Toda America, Incorporated Battle Creek, Michigan More Documents & Publications EA 1714: Final Environmental Assessment EA-1711: Finding of No Significant Impact EA-1678: Finding of No Significant Impact

449

EA-1493: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1493: Finding of No Significant Impact EA-1493: Finding of No Significant Impact EA-1493: Finding of No Significant Impact Greenidge Multi-Pollutant Control Project (December 2004) The U.S. Department of Energy has prepared an environmental assessment (EA) to analyze the potential environmental consequences of providing cost-shared funding support for the design, construction, and demonstration of an integrated multi-pollutant control system at AES's Greenidge Station in Dresden, New York. The results of the analyses provided in the EA are summarized in this Finding of No Significant Impact. Finding of No Significant Impact for the Greenidge Multi-Pollutant Control Project, DOE/EA-1493 (December 2004) More Documents & Publications EA-1476: Finding of No Significant Impact Department of Energy Technical Support Document National Environmental

450

Resistance probe for energetic particle dosimetry  

SciTech Connect

A probe for determining the energy and flux of particles in a plasma comprises a carbon film adapted to be exposed to the plasma, the film havinmg an electrical resistance which is related to the number of particles impacting the film, contacts for passing an electrical current through the film, and contacts for determining the electrical resistance of the film. An improved method for determining the energy or flux of particles in a plasma is also disclosed.

Wampler, William R. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

451

INSTRUMENT FOR DETERMINING CRUSHING STRENGTH OF PARTICLES  

SciTech Connect

An instrument for crushing-strength determinations of uncoated and pyrolytic-carbon-coated fuel particles (50 to 500 mu in diameter) was developed to relate the crushing strength of the particles to their fabricability. The instrument consists of a loading mechanism, load cell, and a power supply-readout unit. The information that can be obtained by statistical methods of the data analysis is illustrated by results on two batches of fuel particles. (auth)

Hallerman, G.; Gray, R.J.

1963-11-29T23:59:59.000Z

452

PREPARATION OF SPHERICAL URANIUM DIOXIDE PARTICLES  

DOE Patents (OSTI)

This patent relates to the preparation of high-density, spherical UO/sub 2/ particles 80 to 150 microns in diameter. Sinterable UO/sub 2/ powder is wetted with 3 to 5 weight per cent water and tumbled for at least 48 hours. The resulting spherical particles are then sintered. The sintered particles are useful in dispersion-type fuel elements for nuclear reactors. (AEC)

Levey, R.P. Jr.; Smith, A.E.

1963-04-30T23:59:59.000Z

453

ULTRA-DEEP WATER ADVISORY COMMITTEE FINDINGS AND  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ULTRA-DEEP WATER ADVISORY COMMITTEE FINDINGS AND RECOMMENDATIONS 2014 ULTRA-DEEPWATER ADVISORY COMMITTEE COMMITTEE FINDINGS AND RECOMMENDATIONS i Table of Contents Research and Development Program Committee ............................................ 1 Sunset Committee .................................................................................................. 5 Advisory Committee Members ........................................................................... 7 ULTRA-DEEPWATER ADVISORY COMMITTEE COMMITTEE FINDINGS AND RECOMMENDATIONS 1 Research and Development Program Committee The R&D Program Subcommittee of the UDAC notes that the 2014 Annual Plan has continued to take into account safety and environment in several aspects of the proposed

454

Utilizing fly ash particles to produce low-cost metal matrix composites  

Science Conference Proceedings (OSTI)

Metal matrix composites (MMCs) are a blend of fine ceramic particles mixed with metals such as aluminium or magnesium. Fly ash is considerably cheaper than ceramics; aluminium-fly ash composites cost less than 60% of conventional aluminium-SiC composites making them attractive to automakers striving for lower weight and cheaper materials for brake rotors or brake drums. Ultalite.com has consulted with US researchers to to find the optimum requirements of the fly ash needed to make MMCs. Particle size 20-40 microns, low calcium oxide content and spherical particles were identified. The desired particles once extracted are stirred into molten aluminum and the resulting composite is into ingots for shipment to a casting facility. Dynamometer testing has shown that aluminium-fly ash composite brake drums have better performance and wear than cast iron drums. 6 figs., 1 tab.

Withers, G. [Ultalite.com, Melbourne, Vic. (Australia)

2008-07-01T23:59:59.000Z

455

Entropic effects in the self-assembly of open lattices from patchy particles  

E-Print Network (OSTI)

Open lattices are characterized by low volume-fraction arrangements of building blocks, low coordination number, and open spaces between building blocks. The self-assembly of these lattices faces the challenge of mechanical instability due to their open structures. We theoretically investigate the stabilizing effects of entropy in the self-assembly of open lattices from patchy particles. A preliminary account of these findings and their comparison to experiment was presented recently [X. Mao, Q. Chen, S. Granick, \\textit{Nat. Mater.}, \\textbf{12}, 217 (2013)]. We found that rotational entropy of patchy particles can provide mechanical stability to open lattices, whereas vibrational entropy of patchy particles can lower the free energy of open lattices and thus enables the selection of open lattices verses close-packed lattices which have the same potential energy. These effects open the door to significant simplifications of possible future designs of patchy-particles for open-lattice self-assembly.

Xiaoming Mao

2013-03-02T23:59:59.000Z

456

Biosensors based on directed assembly of particles  

DOE Patents (OSTI)

A sensor system for detecting an effector or cofactor comprises (a) a nucleic acid enzyme; (b) a substrate for the nucleic acid enzyme, comprising a first polynucleotide; (c) a first set of particles comprising a second polynucleotide at least partially complementary to the substrate, where the polynucleotide is attached to the particles at its 3' terminus; and (d) a second set of particles comprising a third polynucleotide at least partially complementary to the substrate, where the polynucleotide is attached to the particles at its 5' terminus.

Lu, Yi (Champaign, IL); Liu, Juewen (Urbana, IL)

2009-02-03T23:59:59.000Z

457

The Particle Adventure | Unsolved Mysteries | Supersymmetry  

NLE Websites -- All DOE Office Websites (Extended Search)

Supersymmetry Supersymmetry Some physicists attempting to unify gravity with the other fundamental forces have come to a startling prediction: every fundamental matter particle...

458

Particle Data Group - 2008 Reviews, Tables, Plots  

NLE Websites -- All DOE Office Websites (Extended Search)

Downloadable figures are available for these reviews. Complete list of Reviews in the Particle Listings.. Categories: Constants, Units, Atomic and Nuclear Properties Physical...

459

Particle Data Group - 2010 Reviews, Tables, Plots  

NLE Websites -- All DOE Office Websites (Extended Search)

Downloadable figures are available for these reviews. Complete list of Reviews in the Particle Listings.. Categories: Constants, Units, Atomic and Nuclear Properties Physical...

460

Particle Acceleration by Electromagnetic-Dominated Outflows  

E-Print Network (OSTI)

We review recent developments in particle acceleration by Poynting flux using plasma kinetic simulations, and discuss their potential applications to gamma-ray burst phenomenology

Edison Liang; Koichi Noguchi

2006-04-19T23:59:59.000Z

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Particle Acceleration by Electromagnetic-Dominated Outflows  

E-Print Network (OSTI)

We review recent developments in particle acceleration by Poynting flux using plasma kinetic simulations, and discuss their potential applications to gamma-ray burst phenomenology

Liang, E; Liang, Edison; Noguchi, Koichi

2006-01-01T23:59:59.000Z

462

Slow Waveguide Structures for Particle Accelerators  

The beam line is used for basic science investigations as well as for applications ... waveguide structure to support transmission of particles at ...

463

Predicting particle deposition on HVAC heat exchangers  

E-Print Network (OSTI)

gas-side of finned tube heat- exchangers. Journal of Heatsurface interactions in heat exchanger fouling. Journal ofParticle Deposition on Heat Exchangers Epstein, N. , 1988.

Siegel, J A; Nazaroff, William W

2003-01-01T23:59:59.000Z

464

Composition and Reactions of Atmospheric Aerosol Particles  

NLE Websites -- All DOE Office Websites (Extended Search)

change. Tiny Specks with Large Effects Most people equate aerosols with hairspray and household cleaning products, but a large portion of these microscopic particles floating...

465

Mapping Particle Charges in Battery Electrodes  

NLE Websites -- All DOE Office Websites (Extended Search)

Mapping Particle Charges in Battery Electrodes Print The deceivingly simple appearance of batteries masks their chemical complexity. A typical lithium-ion battery in a cell phone...

466

Particle beam generator using a radioactive source  

DOE Patents (OSTI)

The apparatus of the present invention selects from particles emitted by a radioactive source those particles having momentum within a desired range and focuses the selected particles in a beam having at least one narrow cross-dimension, and at the same time attenuates potentially disruptive gamma rays and low energy particles. Two major components of the present invention are an achromatic bending and focusing system, which includes sector magnets and quadrupole, and a quadrupole doublet final focus system. Permanent magnets utilized in the apparatus are constructed of a ceramic (ferrite) material which is inexpensive and easily machined.

Underwood, D.G.

1993-03-30T23:59:59.000Z

467

Slow Wave Structures for Charged Particle Applications  

of light in free space. This slower wave speed is important for acceleration of charged particles. The special shape of the cross-

468

Trapping and Measuring Charged Particles in Liquids  

Using molecular dynamics simulations, the researchers found that particles are trapped in liquid environments when appropriate AC/DC electric fields ...

469

Particle beam generator using a radioactive source  

DOE Patents (OSTI)

The apparatus of the present invention selects from particles emitted by a radioactive source those particles having momentum within a desired range and focuses the selected particles in a beam having at least one narrow cross-dimension, and at the same time attenuates potentially disruptive gamma rays and low energy particles. Two major components of the present invention are an achromatic bending and focusing system, which includes sector magnets and quadrupole, and a quadrupole doublet final focus system. Permanent magnets utilized in the apparatus are constructed of a ceramic (ferrite) material which is inexpensive and easily machined.

Underwood, D.G.

1991-12-31T23:59:59.000Z

470

Particle Data Group - What is PDG?  

NLE Websites -- All DOE Office Websites (Extended Search)

CA. Here he discussed the "Review of Particle Physics," a biennially published book outlining the critical issues in physics that help to shape our understanding of the...

471

Nanolipoprotein Particles for Vaccine and Adjuvant Delivery  

home \\ technologies \\ nlps for vaccines. Technologies: Ready-to-Sign Licenses: Software: Patents: Nanolipoprotein Particles for Vaccine and Adjuvant Delivery. Contact.

472

Carbonaceous Aerosol Study Using Advanced Particle Instrumentation  

E-Print Network (OSTI)

and atmospheric organic aerosol formation. Envir. Sci.of secondary organic aerosol mass fraction, Atmos. Chem.composition of ambient aerosol particles. Environ. Sci.

Qi, Li

2010-01-01T23:59:59.000Z

473

Characterization of Packing Ability of Coke Particles  

Science Conference Proceedings (OSTI)

VBD is conventionally used in anode industry to determine the required amount of pitch and fine coke. VBD may be achieved by dense particles while they do...

474

EA-1498: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

98: Finding of No Significant Impact 98: Finding of No Significant Impact EA-1498: Finding of No Significant Impact Advanced Coal Utilization Byproduct Beneficiation Processing Plant Ghent Power Station, Carroll County, Kentucky The proposed Federal action is to provide funding, through a cooperative agreement with the University of Kentucky Research Foundation (UKRF), Center for Applied Energy Research (CAER), for the design, construction, and operation of an advanced coal ash beneficiation processing plant at Kentucky Utilities (KU) Ghent Power Station in Carroll County, Kentucky. Finding of No Significant Impact for Advanced Coal Utilization Byproduct Beneficiation Processing Plant Ghent Power Station, Carroll County, Kentucky, DOE/EA-1498 (December 2004) More Documents & Publications

475

Find Funding | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Find Funding Find Funding Funding Opportunities Grants & Contracts Support Award Search Find Funding Early Career Research Program Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 Find Funding Print Text Size: A A A RSS Feeds FeedbackShare Page Additional information on funding opportunities, including program contacts and general program announcements can be found on the SC program offices' funding opportunities pages: Advanced Scientific Research Computing (ASCR) funding opportunities information Basic Energy Sciences (BES) funding opportunities information Biological & Environmental Research (BER) funding opportunities information Fusion Energy Sciences (FES) funding opportunities information

476

EA-1628: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

628: Finding of No Significant Impact 628: Finding of No Significant Impact EA-1628: Finding of No Significant Impact Construction and Operation of a Proposed Lignocellulosic Biorefinery, POET Project LIBERTY, LLC, Emmetsburg, Iowa The Department of Energy proposes to provide financial assistance (the Proposed Action) to POET Project LIBERTY, LLC (POET) for the construction and operation of the lignocellulosic ethanol production facility (Project LIBERTY) near the City of Emmetsburg, Iowa. Mitigation Action Plan for the Environmental Assessment, Notice of Wetlands Involvement and Finding of No Significant Impact for Construction and Operation of a Proposed Lignocellulosic Biorefinery, Emmetsburg, Iowa, DOE/EA-1628 (September 2008) More Documents & Publications EA-1628: Mitigation Action Plan

477

EA-1837: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1837: Finding of No Significant Impact EA-1837: Finding of No Significant Impact EA-1837: Finding of No Significant Impact Performance Verification Laboratory, Morgantown, West Virginia Based on the analyses in the environmental assessment, DOE determined that its proposed action - to design, construct, and make operational a DOE Performance Verification Laboratory facility for verifying the energy performance pf appliances and equipment to facilitiate improved enforcement of energy conservation standards and ENERGY STAR programs - would result in no significant adverse impacts. Finding of No Significant Impact and Final Environmental Assessment for National Energy Technology Laboratory Performance Verification Laboratory, Morgantown, West Virginia More Documents & Publications EA-1837: Final Environmental Assessment

478

EA-1837: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1837: Finding of No Significant Impact Performance Verification Laboratory, Morgantown, West Virginia Based on the analyses in the environmental assessment, DOE determined that its proposed action - to design, construct, and make operational a DOE Performance Verification Laboratory facility for verifying the energy performance pf appliances and equipment to facilitiate improved enforcement of energy conservation standards and ENERGY STAR programs - would result in no significant adverse impacts. Finding of No Significant Impact and Final Environmental Assessment for National Energy Technology Laboratory Performance Verification Laboratory, Morgantown, West Virginia More Documents & Publications EA-1837: Final Environmental Assessment

479

EA-1638: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1638: Finding of No Significant Impact Loan Guarantee to Solyndra, Inc. for Construction of a Photovoltaic Manufacturing Facility and Leasing of an Existing Commercial Facility in Fremont, California The Department of Energy has conducted an environmental assessment that analyzed the potential environmental impacts associated with: 1) the proposed construction and operation of a photovoltaic manufacturing facility and accompanying administrative offices in Fremont, California; and 2) the leasing of an existing commercial facility for assembly and packaging of the photovoltaic panels. Finding of No Significant Impact Department of Energy Loan Guarantee to Solyndra, Inc for Construction of a Photovoltaic Manufacturing Facility and

480

EA-1716: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1716: Finding of No Significant Impact Honeywell International, Inc., Electric Drive Vehicle Battery and Component Manufacturing Initiative Project Massac County, Illinois Based on the analyses in the Environmental Assessment (EA), DOE determined that its proposed action-awarding a federal greant to Honeywell International Inc. (Honeywell) for the construction of a manufacturing plant to produce a critical battery material, lithium hexafluorophosphate (LiPF6)- would result in no significant adverse impacts. FInding of No Significant Impact for Electric Drive Vehicle Battery and Component Manufacturing Initiative Project, Honeywell International, Inc, Massac County, Illinois, DOE/EA-1716, September 2010 More Documents & Publications

Note: This page contains sample records for the topic "finding subatomic particles" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

EA-1746: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1746: Finding of No Significant Impact EA-1746: Finding of No Significant Impact EA-1746: Finding of No Significant Impact Blue Mountain Geothermal Development Project, Humboldt and Pershing Counties, Nevada The Department of Energy is adopting an environmental assessment completed by the Department of the Interior's Bureau of Land Management in December 2007 that analyzed the potential environmental impacts associated with the construction and startup of Nevada Geothermal Power, Inc.'s Blue Mountain Geothermal Development Project located in Humboldt and Pershing Counties, Nevada. Finding of No SIgnificant Impact Department of Energy Loan Guarantee for Nevada Geothermal Power's Blue Mountain Geothermal Development Project in Humboldt and Pershing Counties, Nevada More Documents & Publications

482

EA-1727: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Finding of No Significant Impact Finding of No Significant Impact EA-1727: Finding of No Significant Impact Construction and Startup of their Phase 2 Polysilicon Production Facility in Fairless Hills, Pennsylvania The Department of Energy conducted an environmental assessment that analyzed the potential environmental impacts associated with the construction and startup of a Phase 2 commercial polysilicon production unit to be developed by AE Polysilicon Corporation within the Keystone Industrial Port Complex in Fairless Hills, Bucks County, Pennsylvania. Finding of No Significant Impact Department of Energy Loan Guarantee to AE Polysilicon Corporation for Construction and Startup of their Phase 2 Polysilicon Production Facility in Fairless Hills, Pennsylvania More Documents & Publications

483

EA-1664: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4: Finding of No Significant Impact 4: Finding of No Significant Impact EA-1664: Finding of No Significant Impact Energy Conservation Standards: Energy Conservation Standards for Fluorescent and Incandescent Lamps The U.S. Department of Energy has determined that the adoption of energy conservation standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps as described in the final rule titled the "energy Conservation Program: Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector lamps," would not be a major federal action significantly affecting the quality of the human environment. Finding of No Significant Impact for 10 CFR Part 430 Energy Conservation Standards: Energy Conservation Standards for Fluorescent and Incandescent

484

EA-1607: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

No Significant Impact EA-1607: Finding of No Significant Impact Disposition of DOE Excess Depleted Uranium, Natural Uranium, and Low-Enriched Uranium DOE is proposing the...

485

EA-1876: Final Environmental Assessment and Finding of No Significant...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Impact EA-1876: Final Environmental Assessment and Finding of No Significant Impact Pennsylvania State Energy Program's Conergy Navy Yard Solar Project EA-1876-FEA-2011.pdf...

486

EA-1625: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of No Significant Impact EA-1625: Finding of No Significant Impact Southeast Regional Carbon Sequestration Partnership Phase III Early Test The proposed action is for the DOE...

487

Energy Department Report Finds Major Potential to Increase Clean ...  

Energy Department Report Finds ... For more information and an ... of energy efficiency and renewable energy technologies and market-based solutions ...

488

Finding Money for Your Energy Efficiency Projects | ENERGY STAR  

NLE Websites -- All DOE Office Websites (Extended Search)

Finding Money for Your Energy Efficiency Projects Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial...

489

EA-1471: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Y-12 National Security Complex The Department of Energy proposes to transport highly enriched uranium from Russia to a secure storage facility in Oak Ridge, Tennessee. Finding of...

490

Find an ENERGY STAR service and product provider | ENERGY STAR  

NLE Websites -- All DOE Office Websites (Extended Search)

Find an ENERGY STAR service and product provider Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial...

491

EA-1907: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Impact EA-1907: Finding of No Significant Impact Western Plains Energy, LLC Biogas Anaerobic Digester Facility, Oakley, Kansas Based on the analysis in the Final EA and...

492

EA-0820: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of No Significant Impact EA-0820: Finding of No Significant Impact Construction of Mixed Waste Storage RCRA Facilities, Buildings 7668 and 7669 Based on the analysis in the...

493

EA-1530: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Impact Final Rule for Energy Conservation Standards for Residential Furnaces and Boilers The Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) have...

494

EA-1761: Finding of No Significant Impact and Floodplain Statement...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of No Significant Impact and Floodplain Statement of Findings Clemson University Wind Turbine Drivetrain Test Facility North Charleston, South Carolina The Department of Energy is...

495

EA-1762: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of No Significant Impact EA-1762: Finding of No Significant Impact Wellford Landfill Methane and Greenhouse Gas to Energy Project, Spartanburg County, South Carolina The...

496

EA-1683: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Impact EA-1683: Finding of No Significant Impact Abengoa Solar Inc., the Solana Thermal Electric Power Project near Gila Bend, Arizona The Department of Energy has conducted...

497

OE Summary 2006-05: Preliminary Findings on Fatal Explosion...  

NLE Websites -- All DOE Office Websites (Extended Search)

PRELIMINARY FINDINGS ON FATAL EXPLOSION AT TEXAS REFINERY Operating Experience Summary 2005-11 described the March 23, 2005, explosions at the BP America Refinery in Texas City,...

498

EA-1210: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

No Significant Impact EA-1210: Finding of No Significant Impact Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland,...

499

EA-1732: Finding of No Significant Impact | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

grant to Johnson Controls, Inc., and ENTEK International, LLC to establish an advanced lithium ion battery manufacturing facility. Finding of No Significant Impact for Johnson...

500

Findings from the 2004 Fully Automated Demand Response Tests...  

NLE Websites -- All DOE Office Websites (Extended Search)

the 2004 Fully Automated Demand Response Tests in Large Facilities Title Findings from the 2004 Fully Automated Demand Response Tests in Large Facilities Publication Type Report...