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Note: This page contains sample records for the topic "detection un parameter" from the National Library of EnergyBeta (NLEBeta).
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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

ESTIMATING DETECTION PROBABILITY PARAMETERS FOR PLETHODON SALAMANDERS USING THE ROBUST  

E-Print Network [OSTI]

ESTIMATING DETECTION PROBABILITY PARAMETERS FOR PLETHODON SALAMANDERS USING THE ROBUST CAPTURE 7617, Raleigh, NC 27695-7617, USA KENNETH H. POLLOCK, Department of Statistics, Biomathematics monitoring programs. Two sources of variation, spatial variation and variation in detection probability, make

Simons, Theodore R.

2

Testing Distributed Parameter Hypotheses for the Detection of Climate Change  

Science Journals Connector (OSTI)

A general statistical methodology, based on testing alternative distributed parameter hypotheses, is proposed as a method for deciding whether or not anthropogenic influences are causing climate change. This methodology provides a framework for ...

Haroon S. Kheshgi; Benjamin S. White

2001-08-01T23:59:59.000Z

3

Spatial-temporal event detection in climate parameter imagery.  

SciTech Connect (OSTI)

Previously developed techniques that comprise statistical parametric mapping, with applications focused on human brain imaging, are examined and tested here for new applications in anomaly detection within remotely-sensed imagery. Two approaches to analysis are developed: online, regression-based anomaly detection and conditional differences. These approaches are applied to two example spatial-temporal data sets: data simulated with a Gaussian field deformation approach and weekly NDVI images derived from global satellite coverage. Results indicate that anomalies can be identified in spatial temporal data with the regression-based approach. Additionally, la Nina and el Nino climatic conditions are used as different stimuli applied to the earth and this comparison shows that el Nino conditions lead to significant decreases in NDVI in both the Amazon Basin and in Southern India.

McKenna, Sean Andrew; Gutierrez, Karen A.

2011-10-01T23:59:59.000Z

4

Un  

E-Print Network [OSTI]

Un::..tad 3tat.::s Del)art .ent of t:t( .L,l,·_'jO!' Fis hand ·,.ildlife St.r iC3 Chi cagn, Ill. ~ Ja.wr-en ee _r. Koll:.oc . AqU.?.ti Biolof~is t Divis i on of Fis 1-].ery rliolog: .- The prj of the fis her:r · One of t~a mo[. t use: 1 tecru ' - quos emp l ,, ~~ d in the collection of scientific dat

5

Bayesian wavelet approaches for parameter estimation and change point detection in long memory processes  

E-Print Network [OSTI]

The main goal of this research is to estimate the model parameters and to detect multiple change points in the long memory parameter of Gaussian ARFIMA(p, d, q) processes. Our approach is Bayesian and inference is done on wavelet domain. Long memory...

Ko, Kyungduk

2005-11-01T23:59:59.000Z

6

The estimated ocean detector: Detection of signals with different parameter distributions  

Science Journals Connector (OSTI)

Earlier we presented a maximum likelihood receiver for acoustic signals that have propagated through a random or uncertain ocean the estimated oceandetector (EOD) [Ballard et al. Oceans 2006 Boston MA]. In general the EOD incorporates statistical knowledge of signal uncertainty in the form of signal parameters probability density functions(pdfs). Note that Monte Carlo simulation and possibly other techniques can utilize deterministic and statistical knowledge of the environmental to predict signal parameter pdfs. The EOD utilizes the a priori signal parameter pdfs to estimate signal parameters from the data (or observations) then correlates the estimate with the data; hence the name estimator?correlator is also used. Previously we showed that for Gaussian signals embedded in Gaussian noise the EOD reduces to the weighted sum of an energy detector and a correlation detector. This talk presents an EOD formulated to distinguish between signals whose parameters possess different a priori distributions. Performance is seen to depend upon the difference between parameter distributions for the two different signals. [Work supported by ONR Undersea Signal Processing Code 321US.

2007-01-01T23:59:59.000Z

7

A multichannel sensor for parameters of layered media with one detective element  

Science Journals Connector (OSTI)

We propose detective element structures for a multichannel sensor based on a distributed long line with kinks distributed along its length. We find generalized relations between the eigenvalues of a resonator with an arbitrary number of kinks and the ...

B. V. Lunkin

2012-10-01T23:59:59.000Z

8

Optimizing Inspection Parameters for Long Stand-Off Detection of SNM  

SciTech Connect (OSTI)

Detection of special nuclear material (SNM) at extended ranges (>100 m) through the utilization of high energy (>20 MeV) bremsstrahlung photons requires optimizing the structure and interrelation of irradiation (beam-on) and detection (counting) periods. Conventional inspection schemes at lower energies and smaller distances primarily operate by pulsing an accelerator at frequencies of 0.1-1 kHz while collecting emitted radiation from the target under inspection for the few milliseconds in between pulses. Simulation and experimental results for long stand-off scenarios with source photons >20 MeV, however, indicate that two primary phenomena--(1) induced photoneutrons in proximity to the accelerator and (2) beam induced activation of air and soil--preclude the use of conventional inspection schemes. By considering the time structure and magnitude of the beam-induced photon and neutron backgrounds, signals of interest from the target, and natural backgrounds, inspection schemes have been developed to maximize signal to noise ratios (SNR). Analysis of the data indicates that the highest SNR values are found with short (2-5 s) irradiations followed by a 1-2 s period of collecting emitted neutron and photon signatures.

Johnson, Erik; Blackburn, Brandon; Hynes, Michael [Raytheon Integrated Defense Systems, 50 Apple Hill Drive, Tewksbury, MA 01876 (United States); Hausladen, Paul [Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831 (United States)

2011-12-13T23:59:59.000Z

9

Detection et reconnaissance de cibles en ligne pour des UAV autonomes avec un mod`ele de type POMDP  

E-Print Network [OSTI]

D´etection et reconnaissance de cibles en ligne pour des UAV autonomes avec un mod`ele de type d´etection et reconnaissance de cibles men´ee par un v´ehicule a´erien inhabit´e (UAV) autonome. La embarqu´ee sur notre UAV. Nous pr´esentons aussi notre cadre optimize-while-executing, qui administre un

Paris-Sud XI, Université de

10

Detecting Dependence in the Sensitive Parameter Space of a Model Using Statistical Inference and Large Forecast Ensembles  

Science Journals Connector (OSTI)

This study looks for evidence of correlation among model physical parameters in the sensitive parameter space defined by those randomly sampled physical parameter vectors that induce the most notable response in some forecast metric. These ...

J. G. McLay; M. Liu

2014-10-01T23:59:59.000Z

11

Detecting Generalized Synchronization of Chaotic Dynamical Systems: A Kernel-based Method and Choice of Its Parameter  

E-Print Network [OSTI]

An approach based on the kernel methods for capturing the nonlinear interdependence between two signals is introduced. It is demonstrated that the proposed approach is useful for characterizing generalized synchronization with a successful simple example. An attempt to choose an optimal kernel parameter based on cross validation is also discussed.

Hiromichi Suetani; Yukito Iba; Kazuyuki Aihara

2005-07-21T23:59:59.000Z

12

Cmo preparar un pster para un congreso  

Science Journals Connector (OSTI)

Resumen La presentacin en formato de pster de los trabajos cientficos y las revisiones educativas en congresos nacionales e internacionales constituye uno de los medios ms eficaces de comunicacin cientfica. Los psteres son de especial importancia en una especialidad eminentemente visual como la radiologa, siendo adems una parte fundamental de la formacin continuada en nuestra especialidad. Sin embargo, el pster no debe ser ms que un paso intermedio en el camino hacia publicar nuestro trabajo en una revista cientfica. La tasa de publicacin de los trabajos enviados a cursos y congresos es muy baja en nuestro pas. Por lo tanto, debemos continuar progresando en la formacin en publicacin cientfica, con esfuerzos como el de este suplemento. En este artculo se revisan algunos aspectos prcticos en la elaboracin de un pster para un congreso. Scientific and educational poster presentations in national and international meetings are one of the most effective means of scientific communication. Poster presentations are of particular importance in a mainly visual speciality like radiology, and also play a significant role in continuing medical education in our specialty. However, poster should be no more than an intermediate step on the way to publish our work in a scientific journal. The publication rates of posters prented in courses and conferences is very low in our country. Therefore, we must continue to progress in training in scientific publication, with efforts such as this supplement. This article review how to create an effective poster presentation.

L. Cerezal Pesquera

2013-01-01T23:59:59.000Z

13

UN | OpenEI  

Open Energy Info (EERE)

UN UN Dataset Summary Description The Energy Statistics Database contains comprehensive energy statistics on the production, trade, conversion and final consumption of primary and secondary; conventional and non-conventional; and new and renewable sources of energy. The Energy Statistics dataset, covering the period from 1990 on, is available at UNdata. This dataset relates to the conversion in other energy-producing plants, and is available for both Germany and Sweden (2001 - 2007). Source United Nations (UN) Date Released December 09th, 2009 (5 years ago) Date Updated Unknown Keywords conversion dataset energy UN Data application/xml icon conversion in other energy-producing plants XML (xml, 6 KiB) text/csv icon conversion in other energy-producing plants CSV (csv, 1.5 KiB)

14

Un-Casimir effect  

E-Print Network [OSTI]

In this paper we present the un-Casimir effect, namely the study of the Casimir energy related to the presence of an un-particle component in addition to the electromagnetic field contribution. We derive this result by considering modifications of the Feynman propagator in the unparticle sector. The contribution of unparticles turns out to be the integral of Casimir energies for particles at fixed mass with a weight depending on the scaling dimension. The distinctive feature of the un-Casimir effect is a fractalization of metallic plates. This fact emerges through a new dependence of the Casimir energy on the distance between plates, that scales with a continuous power controlled by the scaling dimension. More importantly the un-Casimir effect offers a reliable testbed for unparticle physics. We find bounds on the unparticle scale that are independent on the effective coupling constant describing the interaction between the scale invariant sector and ordinary matter. Therefore the un-Casimir effect, contrary to what found in previous unparticle physics situations (\\textit{e.g.} g-2 and a variety LEP/LHC data analyses), actually removes the ambiguity associated to the value of such a coupling. We also discuss some of the possible implications for unparticle physics when non-perfect conducting plates are considered.

Antonia M. Frassino; Piero Nicolini; Orlando Panella

2013-11-27T23:59:59.000Z

15

Poroelasticity: parameters reviewed  

Science Journals Connector (OSTI)

......pressure parameter), storage parameters, the Darcy...the variability of the storage coefficient as function...effects associated with the long-term compaction of sedimentary...underground nuclear waste storage, exploitation of geothermal......

H.-J. Kmpel

1991-06-01T23:59:59.000Z

16

Detection Science  

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

Chemistry for Measurement and Detection Science Chemistry for Measurement and Detection Science Project Description Chemistry used in measurement and detection science plays a...

17

Cosmological parameters are dressed  

E-Print Network [OSTI]

In the context of the averaging problem in relativistic cosmology, we provide a key to the interpretation of cosmological parameters by taking into account the actual inhomogeneous geometry of the Universe. We discuss the relation between `bare' cosmological parameters determining the cosmological model, and the parameters interpreted by observers with a ``Friedmannian bias'', which are `dressed' by the smoothed-out geometrical inhomogeneities of the surveyed spatial region.

Thomas Buchert; Mauro Carfora

2002-10-15T23:59:59.000Z

18

Effects of un-transposed UHV transmission line on fault analysis of power systems  

Science Journals Connector (OSTI)

The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method...

Anning Wang ???; Qing Chen ? ?; Zhanping Zhou ???

2008-06-01T23:59:59.000Z

19

Photon Source Parameters  

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

Photon Source Parameters Photon Source Parameters Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

20

Parameter Estimation Through Ignorance  

E-Print Network [OSTI]

Dynamical modelling lies at the heart of our understanding of physical systems. Its role in science is deeper than mere operational forecasting, in that it allows us to evaluate the adequacy of the mathematical structure of our models. Despite the importance of model parameters, there is no general method of parameter estimation outside linear systems. A new relatively simple method of parameter estimation for nonlinear systems is presented, based on variations in the accuracy of probability forecasts. It is illustrated on the Logistic Map, the Henon Map and the 12-D Lorenz96 flow, and its ability to outperform linear least squares in these systems is explored at various noise levels and sampling rates. As expected, it is more effective when the forecast error distributions are non-Gaussian. The new method selects parameter values by minimizing a proper, local skill score for continuous probability forecasts as a function of the parameter values. This new approach is easier to implement in practice than alternative nonlinear methods based on the geometry of attractors or the ability of the model to shadow the observations. New direct measures of inadequacy in the model, the "Implied Ignorance" and the information deficit are introduced.

Hailiang Du; Leonard A. Smith

2012-06-06T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Un teatro campesino en Venezuela  

E-Print Network [OSTI]

102 LATIN AMERICAN THEATRE REVIEW Un teatro campesino en Venezuela GUILLERMO KORN Producto espontneo de la participacin colectiva naci el grupo de teatro del Asentamiento Campesino Sabaneta, en el Estado Aragua de Venezuela. Las obras de su..., despert inters. En la Universidad Central de Venezuela quieren saber ms de ustedes. Para eso he venido. . . ? Podran eventualmente hacer una representacin en la Escuela de Comuni cacin Social? Almeida: {Claro que s! Si nos dan un medio para...

Korn, Guillermo

1976-10-01T23:59:59.000Z

22

One UN Training Service Platform for Climate Change (UN CC:LEARN) | Open  

Open Energy Info (EERE)

One UN Training Service Platform for Climate Change (UN CC:LEARN) One UN Training Service Platform for Climate Change (UN CC:LEARN) Jump to: navigation, search Tool Summary Name: One UN Training Service Platform for Climate Change (UN CC:LEARN) Agency/Company /Organization: United Nations Sector: Climate Topics: Low emission development planning, -LEDS Resource Type: Case studies/examples, Lessons learned/best practices, Training materials Website: www.uncclearn.org/ One UN Training Service Platform for Climate Change (UN CC:LEARN) Screenshot References: UN CC:LEARN[1] Logo: One UN Training Service Platform for Climate Change (UN CC:LEARN) "The One UN Training Service Platform for Climate Change (UN CC:Learn) is a partnership of 26 UN agencies which supports Member States, UN agencies and other development partners in designing and implementing results-oriented

23

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

24

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

25

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

26

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

27

BNL | ATF Beamline Parameters  

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

Beamline Parameters Beamline Parameters Electron beam energy: 25 to 76 MeV Temporal structure: Macropulse length: 3 microseconds Macropulse repetition rate from under 1 PPS to 3 PPS. Micropulse repetition period 12.25 ns or 24.5 ns. Micropulse length variable from about 1 ps FWHM to 10 ps FWHM. Electron beam charge: continuously variable. Single micropulse charge from zero to a few nanoculombs. Bunch train charge up to about 10 nanoculombs. Emittance: depends on various conditions, e.g. peak current, gun field, microbunch length etc. At 1 nC we have measured the emittance at 2.6 mm mrad (rms normalized) at a bunch length of 10 ps FWHM. The local emittance (Slice Emittance) is smaller, measured 1.4 mm mrad for a slice out of the 1 nC bunch. Stability: (approx.) 1 ps in short term phase, 1% of beam diameter

28

Dissection coronarienne post-traumatique associe un syndrome de Dandy-Walker: A propos dun cas  

Science Journals Connector (OSTI)

Rsum Nous rapportons le cas dun homme de 49 ans, victime dun accident de la voie publique avec incarcration et polytraumatisme, pour lequel lquipe mdicale a t confronte au pige classique de la prise en charge des traumatismes thoracique svre : savoir, relguer au second plan latteinte thoracique en la prsence dautres points dappel. Dans notre cas, ce fut une atteinte neurologique : un syndrome de Dandy-Walker, vritable pige iconographique car pouvant tre confondu avec une lsion crbrale hmorragique. Par cette observation, nous raffirmons la ncessit dune prise en charge systmatique de tout traumatisme thoracique svre en effectuant un lectrocardiogramme, un dosage de la troponine T et une chocardiographie transsophagienne. Summary We report the case of a 49-year-old automobile accident victim. The patient presented multiple injuries including blunt chest trauma. Myocardial necrosis was only detected after extrication from the damaged vehicle. Cardiological care was also delayed due to the presence in the same patient of an asymptomatic Dandy-Walker syndrome (possible confusion with cerebral hemorrhage). This cas troponine T and transthoracic enchocardiography.

A. Bensad; D. Amiri-Bensad; M. Noizet; C. Lhacene; A. Delvaux

2005-01-01T23:59:59.000Z

29

Electrochromic Glazings: Animation Parameters  

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

Glazings Glazings Animation Simulation Parameters The Electrochromic Glazing Office Animation is created using an image compositing method whereby separate images of the office generated with only one source of illumination are added together in variable percentages to come up with the final image. This method assumes that the sources of illumination do not change position through the animation sequence. Although the sun does move approximately 5 degrees during the span of this 20 minute animation sequence, because this movement is not the focus of the simulation and does not significantly change the intensity of the solar exposure, it is ignored. This method takes advantage of the principal of the scalability of light to avoid the significant time involved in calculating separate Radiance renderings for each combination of sky condition (direct sun versus no direct sun) and electrochromic glazing transmission.

30

Nucleic Acid Standards - Refinement Parameters  

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

Refinement Parameters Refinement Parameters The DNA/RNA topology and parameter files for X-PLOR are shown below. These were tested with DNA structures and with protein-DNA complexes. X-PLOR topology file X-PLOR parameter files: X-PLOR parameter file For the refinement of high resolution structures (< 1.7 Angstroms) the parameter file with distinct bond distances and bond angles for both C2'-endo and C3'-endo conformations should be considered: X-PLOR parameter file for high resolution structures "New Parameters for the Refinement of Nucleic Acid Containing Structures." Gary Parkinson, Jaroslav Vojtechovsky, Lester Clowney, Axel Brunger*, and Helen M. Berman. (1996) Acta Cryst. D 52, 57-64 Rutgers University, Department of Chemistry, Piscataway, NJ 08855-0939; *The Howard Hughes Medical Institute and Departments of Molecular and

31

Planet Parameters in Microlensing Events  

E-Print Network [OSTI]

A planetary microlensing event occurs when a planet perturbs one of the two images created in a point-mass microlensing event, causing a deviation from the standard Paczy\\'nski curve. Determination of the two physical parameters that can be extracted from a planetary microlensing event, the planet/star mass ratio q, and the planet/star separation in units of the stellar Einstein ring, $y_p$, is hampered by several types of degeneracies. There are two distinct and qualitatively different classes of planetary events: major and minor image perturbations. For major image perturbations, there is a potentially crippling continuous degeneracy in q which is of order $\\delta_d^{-1}$, where $\\delta_d$ is the maximum fractional deviation of the planetary perturbation. Since the threshold of detection is expected to be $\\delta_d \\sim 5%$, this degeneracy in q can be a factor of $\\sim 20$. For minor image perturbations, the continuous degeneracy in q is considerably less severe, and is typically less than a factor 4. We show that these degeneracies can be resolved by observations from dedicated telescopes on several continents together with optical/infrared photometry from one of these sites. There also exists a class of discrete degeneracies. These are typically easy to resolve given good temporal coverage of the planetary event. Unambiguous interpretation of planetary microlensing events requires the resolution of both types of degeneracy. We describe the degeneracies in detail and specify the situations in which they are problematic. We also describe how individual planet masses and physical projected separations can be measured.

B. Scott Gaudi; Andrew Gould

1996-10-16T23:59:59.000Z

32

Detection threshold  

Science Journals Connector (OSTI)

Detection threshold or recognition differential is defined as the signal?to?noise ratio at the beamformer output required for detection. An introduction to this topic is provided in Uricks Principles of Underwater Sound. The subject is frequently a source of confusion due to the multiple possible definitions of signal?to?noise ratio the effects of nonlinearities in the signal processing and the overall complexity of the sonar operators job of signal recognition in real?world clutter. In this paper a review of the basic theory of mathematical relationships are provided followed by a discussion of practical limitations in applying simple formulas to performance predictions. The relationships of detection threshold to the signal?processing approach and background?noise statistics are discussed. Active sonars in both noise and reverberation as well as passive sonars involving energy detection spectral analysis and cross correlators are discussed.

Henry Cox

1999-01-01T23:59:59.000Z

33

Subsurface Geotechnical Parameters Report  

SciTech Connect (OSTI)

The Yucca Mountain Project is entering a the license application (LA) stage in its mission to develop the nation's first underground nuclear waste repository. After a number of years of gathering data related to site characterization, including activities ranging from laboratory and site investigations, to numerical modeling of processes associated with conditions to be encountered in the future repository, the Project is realigning its activities towards the License Application preparation. At the current stage, the major efforts are directed at translating the results of scientific investigations into sets of data needed to support the design, and to fulfill the licensing requirements and the repository design activities. This document addresses the program need to address specific technical questions so that an assessment can be made about the suitability and adequacy of data to license and construct a repository at the Yucca Mountain Site. In July 2002, the U.S. Nuclear Regulatory Commission (NRC) published an Integrated Issue Resolution Status Report (NRC 2002). Included in this report were the Repository Design and Thermal-Mechanical Effects (RDTME) Key Technical Issues (KTI). Geotechnical agreements were formulated to resolve a number of KTI subissues, in particular, RDTME KTIs 3.04, 3.05, 3.07, and 3.19 relate to the physical, thermal and mechanical properties of the host rock (NRC 2002, pp. 2.1.1-28, 2.1.7-10 to 2.1.7-21, A-17, A-18, and A-20). The purpose of the Subsurface Geotechnical Parameters Report is to present an accounting of current geotechnical information that will help resolve KTI subissues and some other project needs. The report analyzes and summarizes available qualified geotechnical data. It evaluates the sufficiency and quality of existing data to support engineering design and performance assessment. In addition, the corroborative data obtained from tests performed by a number of research organizations is presented to reinforce conclusions derived from the pool of data gathered within a full QA-controlled domain. An evaluation of the completeness of the current data is provided with respect to the requirements for geotechnical data to support design and performance assessment.

D. Rigby; M. Mrugala; G. Shideler; T. Davidsavor; J. Leem; D. Buesch; Y. Sun; D. Potyondy; M. Christianson

2003-12-17T23:59:59.000Z

34

UnPlug Stuff | Open Energy Information  

Open Energy Info (EERE)

UnPlug Stuff UnPlug Stuff Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UnPlug Stuff Agency/Company /Organization: High Energy Audits Sector: Energy Focus Area: Energy Efficiency Resource Type: Software/modeling tools User Interface: Website Website: www.unplugstuff.com/index.html Country: United States Web Application Link: www.unplugstuff.com/index.html Cost: Free OpenEI Keyword(s): Green Button Apps, Challenge Generated Northern America References: UnPlug Stuff[1] Apps for Energy[2] Logo: UnPlug Stuff The UnPlug Stuff app tells you how much energy your home is wasting when idling. Overview UnPlug Stuff uses a month's worth of uploaded hourly electricity data to determine your home's Idle Load. After getting your Idle Load check out the hints on how to reduce it. Then come back in a couple of weeks to see if

35

WIPP Compliance Certification Application calculations parameters. Part 1: Parameter development  

SciTech Connect (OSTI)

The Waste Isolation Pilot Plant (WIPP) in southeast New Mexico has been studied as a transuranic waste repository for the past 23 years. During this time, an extensive site characterization, design, construction, and experimental program was completed, which provided in-depth understanding of the dominant processes that are most likely to influence the containment of radionuclides for 10,000 years. Nearly 1,500 parameters were developed using information gathered from this program; the parameters were input to numerical models for WIPP Compliance Certification Application (CCA) Performance Assessment (PA) calculations. The CCA probabilistic codes frequently require input values that define a statistical distribution for each parameter. Developing parameter distributions begins with the assignment of an appropriate distribution type, which is dependent on the type, magnitude, and volume of data or information available. The development of the parameter distribution values may require interpretation or statistical analysis of raw data, combining raw data with literature values, scaling of lab or field data to fit code grid mesh sizes, or other transformation. Parameter development and documentation of the development process were very complicated, especially for those parameters based on empirical data; they required the integration of information from Sandia National Laboratories (SNL) code sponsors, parameter task leaders (PTLs), performance assessment analysts (PAAs), and experimental principal investigators (PIs). This paper, Part 1 of two parts, contains a discussion of the parameter development process, roles and responsibilities, and lessons learned. Part 2 will discuss parameter documentation, traceability and retrievability, and lessons learned from related audits and reviews.

Howarth, S.M.

1997-11-14T23:59:59.000Z

36

Fingerprint detection  

DOE Patents [OSTI]

A method for detection and visualization of latent fingerprints is provided and includes contacting a substrate containing a latent print thereon with a colloidal metal composition for time sufficient to allow reaction of said colloidal metal composition with said latent print, and preserving or recording the observable print. Further, the method for detection and visualization of latent fingerprints can include contacting the metal composition-latent print reaction product with a secondary metal-containing solution for time sufficient to allow precipitation of said secondary metal thereby enhancing the visibility of the latent print, and preserving or recording the observable print.

Saunders, George C. (Rt. 1, Box 428B, Espanola, NM 87532)

1992-01-01T23:59:59.000Z

37

UN-REDD Programme | Open Energy Information  

Open Energy Info (EERE)

UN-REDD Programme UN-REDD Programme Jump to: navigation, search Name UN-REDD Programme Agency/Company /Organization United Nations Development Programme, Food and Agriculture Organization of the United Nations, United Nations Environment Programme Sector Land Focus Area Forestry Topics Background analysis Website http://www.un-redd.org/ References UN-REDD Programme website[1] Contents 1 Background 1.1 Global Goals 2 REDD+ 3 Carbon, biodiversity & ecosystem services: exploring co-benefits 4 References Background The UN-REDD Programme is the United Nations Collaborative initiative on Reducing Emissions from Deforestation and forest Degradation (REDD) in developing countries. The Programme was launched in September 2008 to assist developing countries prepare and implement national REDD+

38

Detection device  

DOE Patents [OSTI]

The present invention is directed to a detection device comprising: (1) an entrance chamber, (2) a central chamber, and (3) an exit chamber. The central chamber includes an ionizing gas, anode, and means for connecting the anode with an external power supply and pulse counter.

Smith, Jay E. (Pittsburgh, PA)

1984-01-01T23:59:59.000Z

39

Efficient navigation of parameter landscapes  

Science Journals Connector (OSTI)

The covariance matrix of the gradient of the cost function contains a great deal of information about a parameter space. The eigenvectors of the covariance matrix form an optimal basis (in the sense of data compression) for the gradient. Since search algorithms base their decisions on the gradient (often in an indirect fashion) the eigenvectors in some sense form an optimal set of generators for navigating parameter landscapes. For problems involving a long valley there is usually an eigenvector oriented parallel to the valley. Search algorithms based on the optimal generators may find the deepest point in the valley several times faster than algorithms based on other generators. The covariance matrix also contains information about the key underlying parameters. The most important parameters correspond to the eigenvectors associated with the largest eigenvalues. This information can be exploited to reparametrize with a smaller number of parameters. The covariance matrix is the integral of the outer product of the gradient over the parameter space. Obtaining a good estimate of this integral with the Monte Carlo method usually requires relatively little effort even for high?dimensional parameter spaces. Examples are presented for geoacoustic inverse problems involving acoustic sources and receivers located in the ocean.

Michael D. Collins

1994-01-01T23:59:59.000Z

40

Complementarity between collider, direct detection, and indirect detection experiments  

E-Print Network [OSTI]

We examine the capabilities of planned direct detection, indirect detection, and collider experiments in exploring the 19-parameter p(henomenological)MSSM, focusing on the complementarity between the different search techniques. In particular, we consider dark matter searches at the 7, 8 (and eventually 14) TeV LHC, \\Fermi, CTA, IceCube/DeepCore, and LZ. We see that the search sensitivities depend strongly on the WIMP mass and annihilation mechanism, with the result that different search techniques explore orthogonal territory. We also show that advances in each technique are necessary to fully explore the space of Supersymmetric WIMPs.

Matthew Cahill-Rowley

2014-11-12T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Parameter monitoring compensation system and method  

DOE Patents [OSTI]

A compensation system is described for a computer-controlled machining apparatus having a controller and including a cutting tool and a workpiece holder which are movable relative to one another along a preprogrammed path during a machining operation. It utilizes sensors for gathering information at a preselected stage of a machining operation relating to an actual condition. The controller compares the actual condition to a condition which the program presumes to exist at the preselected stage and alters the program in accordance with detected variations between the actual condition and the assumed condition. Such conditions may be related to process parameters, such as a position, dimension or shape of the cutting tool or workpiece or an environmental temperature associated with the machining operation, and such sensors may be a contact or a non-contact type of sensor or a temperature transducer. 7 figs.

Barkman, W.E.; Babelay, E.F.; DeMint, P.D.; Hebble, T.L.; Igou, R.E.; Williams, R.R.; Klages, E.J.; Rasnick, W.H.

1995-02-07T23:59:59.000Z

42

Glosse a margine di un catalogo  

E-Print Network [OSTI]

in cui, verosimilmente a Parigi, trascrive unimpressionanteGuido de Grana, attivo fra Parigi e la valle della Loira (altro inglese del Duecento a Parigi, ma ben prima di Bacone

Stagni, Ernesto

2007-01-01T23:59:59.000Z

43

Fixed Parameter Algorithms Daniel Marx  

E-Print Network [OSTI]

, for example k-CLIQUE and k-INDEPENDENT SET, no FPT algorithm is known. Can we show that these problems if and only if it has a vertex cover of size n - k. Transforming an INDEPENDENT SET instance (G, k, but INDEPENDENT SET is not known to be FPT. Fixed Parameter Algorithms ­ p.5/41 #12;Parameterized reduction

Fondements et Applications, Université Paris 7

44

Fixed Parameter Algorithms Dniel Marx  

E-Print Network [OSTI]

complexity Problem: VERTEX COVER INDEPENDENT SET Input: Graph G, integer k Graph G, integer k Question-complete NP-complete Fixed Parameter Algorithms ­ p.3/40 #12;Parameterized complexity Problem: VERTEX COVER INDEPENDENT SET Input: Graph G, integer k Graph G, integer k Question: Is it possible to cover the edges

Narasayya, Vivek

45

A second order autoregressive based technique for pipeline leak detection  

Science Journals Connector (OSTI)

Efficient leak detection techniques need to be characterized both by rapidity and robustness. This paper studies a simple detection method based on the second order autoregressive (AR) parameters of the pipeline signals- a trade-off between the two required ... Keywords: AR models, ROC curves, leak detection, pipeline monitoring

Marllene Daneti

2008-07-01T23:59:59.000Z

46

Fuel washout detection system  

DOE Patents [OSTI]

A system for detecting grossly failed reactor fuel by detection of particulate matter as accumulated on a filter.

Colburn, Richard P. (Pasco, WA)

1985-01-01T23:59:59.000Z

47

Investigation of lane occupancy as a freeway control parameter for use during incident conditions  

E-Print Network [OSTI]

parameters were used in the automatic control of' a freeway safety warning device. Two concepts, usir g measured lane occupancy foz the detection of' freeway incidents, were developed, . The f'irst concept was ter. . . cd critical occupancy... freeway safety warning device, using critical occupancy parameters, was developed and simulated in real-time. Evaluation of the simulated operation of the device revealed. that relia'cle detection of shock waves generated by freeway incidents...

Friebele, John Duncan

1972-01-01T23:59:59.000Z

48

Utilisation d'un matriau changement de phase dans un mur Trombe sans thermocirculation (*)  

E-Print Network [OSTI]

. Abstract. 2014 Unvented masonry or water Trombe walls have been widely applied to passive solar space633 Utilisation d'un matériau à changement de phase dans un mur Trombe sans thermocirculation (*) L I S mars 1982) Résumé. 2014 Les murs Trombe sans thermocirculation (murs classiques de béton ou murs

Paris-Sud XI, Université de

49

Modeling and Analysis of UN TRISO Fuel for LWR Application Using the PARFUME Code  

SciTech Connect (OSTI)

The Idaho National Laboraroty (INL) PARFUME (particle fuel model) code was used to assess the overall fuel performance of uranium nitride (UN) tristructural isotropic (TRISO) ceramic fuel under irradiation conditions typical of a Light Water Reactor (LWR). The dimensional changes of the fuel particle layers and kernel were calculated, including the formation of an internal gap. The survivability of the UN TRISO particle was estimated depending on the strain behavior of the constituent materials at high fast fluence and burn up. For nominal cases, internal gas pressure and representative thermal profiles across the kernel and layers were determined along with stress levels in the inner and outer pyrolytic carbon (IPyC/OPyC) and silicon carbide (SiC) layers. These parameters were then used to evaluate fuel particle failure probabilities. Results of the study show that the survivability of UN TRISO fuel under LWR irradiation conditions might only be guaranteed if the kernel and PyC swelling rates are limited at high fast fluence and burn up. These material properties have large uncertainties at the irradiation levels expected to be reached by UN TRISO fuel in LWRs. Therefore, a large experimental effort would be needed to establish material properties, including kernel and PyC swelling rates, under these conditions before definitive conclusions can be drawn on the behavior of UN TRISO fuel in LWRs.

Blaise Collin

2014-08-01T23:59:59.000Z

50

Method for estimation of gravitational-wave transient model parameters in frequency-time maps  

E-Print Network [OSTI]

A common technique for detection of gravitational-wave signals is searching for excess power in frequency-time maps of gravitational-wave detector data. In the event of a detection, model selection and parameter estimation will be performed in order to explore the properties of the source. In this paper, we develop a Bayesian statistical method for extracting model-dependent parameters from observed gravitational-wave signals in frequency-time maps. We demonstrate the method by recovering the parameters of model gravitational-wave signals added to simulated advanced LIGO noise. We also characterize the performance of the method and discuss prospects for future work.

Michael Coughlin; Nelson Christensen; Jonathan Gair; Shivaraj Kandhasamy; Eric Thrane

2014-04-17T23:59:59.000Z

51

Projet Professionnel Encadr Raliser un poster  

E-Print Network [OSTI]

Projet Professionnel Encadré Réaliser un poster Serge Dumont Projet Professionnel Encadré 2013-2014 1 / 5 #12;I ­ Déroulement des exposés 1 1 "poster" par groupe (voir plus) (chaque poster doit pas trop ! !), soit chaque étudiant parle d'une partie du poster. Serge Dumont Projet Professionnel

Dumont, Serge

52

Measuring neutrino oscillation parameters using $\  

SciTech Connect (OSTI)

MINOS is a long-baseline neutrino oscillation experiment. It consists of two large steel-scintillator tracking calorimeters. The near detector is situated at Fermilab, close to the production point of the NuMI muon-neutrino beam. The far detector is 735 km away, 716m underground in the Soudan mine, Northern Minnesota. The primary purpose of the MINOS experiment is to make precise measurements of the 'atmospheric' neutrino oscillation parameters ({Delta}m{sub atm}{sup 2} and sin{sup 2} 2{theta}{sub atm}). The oscillation signal consists of an energy-dependent deficit of {nu}{sub {mu}} interactions in the far detector. The near detector is used to characterize the properties of the beam before oscillations develop. The two-detector design allows many potential sources of systematic error in the far detector to be mitigated by the near detector observations. This thesis describes the details of the {nu}{sub {mu}}-disappearance analysis, and presents a new technique to estimate the hadronic energy of neutrino interactions. This estimator achieves a significant improvement in the energy resolution of the neutrino spectrum, and in the sensitivity of the neutrino oscillation fit. The systematic uncertainty on the hadronic energy scale was re-evaluated and found to be comparable to that of the energy estimator previously in use. The best-fit oscillation parameters of the {nu}{sub {mu}}-disappearance analysis, incorporating this new estimator were: {Delta}m{sup 2} = 2.32{sub -0.08}{sup +0.12} x 10{sup -3} eV{sup 2}, sin {sup 2} 2{theta} > 0.90 (90% C.L.). A similar analysis, using data from a period of running where the NuMI beam was operated in a configuration producing a predominantly {bar {nu}}{sub {mu}} beam, yielded somewhat different best-fit parameters {Delta}{bar m}{sup 2} = (3.36{sub -0.40}{sup +0.46}(stat.) {+-} 0.06(syst.)) x 10{sup -3}eV{sup 2}, sin{sup 2} 2{bar {theta}} = 0.86{sub -0.12}{sup _0.11}(stat.) {+-} 0.01(syst.). The tension between these results is intriguing, and additional antineutrino data is currently being taken in order to further investigate this apparent discrepancy.

Backhouse, Christopher James; /Oxford U.

2011-02-01T23:59:59.000Z

53

Basic Parameter Estimation of Binary Neutron Star Systems by the Advanced LIGO/Virgo Network  

E-Print Network [OSTI]

Within the next five years, it is expected that the Advanced LIGO/Virgo network will have reached a sensitivity sufficient to enable the routine detection of gravitational waves. Beyond the initial detection, the scientific promise of these instruments relies on the effectiveness of our physical parameter estimation capabilities. The majority of this effort has been towards the detection and characterization of gravitational waves from compact binary coalescence, e.g. the coalescence of binary neutron stars. While several previous studies have investigated the accuracy of parameter estimation with advanced detectors, the majority have relied on approximation techniques such as the Fisher Matrix. Here we report the statistical uncertainties that will be achievable for optimal detection candidates (SNR = 20) using the full parameter estimation machinery developed by the LIGO/Virgo Collaboration via Markov-Chain Monte Carlo methods. We find the recovery of the individual masses to be fractionally within 9% (15%)...

Rodriguez, Carl L; Raymond, Vivien; Farr, Will M; Littenberg, Tyson; Fazi, Diego; Kalogera, Vicky

2013-01-01T23:59:59.000Z

54

secondary ion detection | EMSL  

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

ion detection secondary ion detection Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a...

55

UN-REDD Workshop: Monitoring, Assessment and Verification | Open Energy  

Open Energy Info (EERE)

UN-REDD Workshop: Monitoring, Assessment and Verification UN-REDD Workshop: Monitoring, Assessment and Verification Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UN-REDD Workshop: Monitoring, Assessment and Verification Agency/Company /Organization: United Nations Environment Programme, Food and Agriculture Organization of the United Nations, United Nations Development Programme Sector: Land Focus Area: Forestry Topics: GHG inventory, Policies/deployment programs, Resource assessment Resource Type: Workshop Website: www.un-redd.org/UNREDDProgramme/InternationalSupport/MeasurementReport UN-REDD Workshop: Monitoring, Assessment and Verification Screenshot References: UN-REDD Workshop: Monitoring, Assessment and Verification[1] Background "The specific objectives of the workshop were to develop a roadmap with

56

Automatic Detection of Optic Disc from Retinal Fundus Images Using Dynamic Programming  

Science Journals Connector (OSTI)

Automatic detection of optic disc (OD) in fundus images is used to determine potential clinical parameters for diagnosis of retinopathic diseases. Due to the presence of vascular-tree blood vessels, the detection...

Qaisar Abbas; Irene Fondn; Soledad Jimnez

2012-01-01T23:59:59.000Z

57

Remote Fault Detection of Building HVAC System Using a Global Optimization Program  

E-Print Network [OSTI]

the simulation program in conjunction with synthetic measured data to identify faults in the building operation. This fault detection approach has successfully identified all of the faulty parameters with noise levels of 1%, 3% and 6%. It successfully detected...

Lee, S. U.; Claridge, D. E.

2004-01-01T23:59:59.000Z

58

System and method for motor parameter estimation  

DOE Patents [OSTI]

A system and method for determining unknown values of certain motor parameters includes a motor input device connectable to an electric motor having associated therewith values for known motor parameters and an unknown value of at least one motor parameter. The motor input device includes a processing unit that receives a first input from the electric motor comprising values for the known motor parameters for the electric motor and receive a second input comprising motor data on a plurality of reference motors, including values for motor parameters corresponding to the known motor parameters of the electric motor and values for motor parameters corresponding to the at least one unknown motor parameter value of the electric motor. The processor determines the unknown value of the at least one motor parameter from the first input and the second input and determines a motor management strategy for the electric motor based thereon.

Luhrs, Bin; Yan, Ting

2014-03-18T23:59:59.000Z

59

Subsea Kick Detection on Floating Vessels: A Parametric Study  

E-Print Network [OSTI]

Well control in drilling operations is priority to personnel safety. Detection of kicks, or the unscheduled entry of formation fluids into the wellbore, is vital to well control. It has been determined that return flow rate is the parameter most...

Collette, Eric Peter

2013-07-22T23:59:59.000Z

60

Un portrait kaleidoscopique du jeune Camille Jordan  

E-Print Network [OSTI]

Un portrait kal´eidoscopique du jeune Camille Jordan Fr´ed´eric Brechenmacher Universit´e d'Artois, Laboratoire de math´ematiques de Lens (EA 2462) rue Jean Souvraz S.P. 18, F- 62300 Lens France Camille Jordan math´ematiques entre 1870 et 1914 12 3 Le premier th´eor`eme de Jordan : l'origine du groupe lin

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "detection un parameter" 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

Parrainage Erasmus Besancon Parrainer un tudiant international  

E-Print Network [OSTI]

'aventure en remplissant un questionnaire de parrainage disponible en cliquant sur ce lien : http/05/2012https://mail.google.com/mail/u/2/?ui=2&ik=6c60429aee&view=pt&search=sent&th=... #12;L'équipe d international 20/05/2012https://mail.google.com/mail/u/2/?ui=2&ik=6c60429aee&view=pt&search=sent&th=... #12;

Jeanjean, Louis

62

UN-Energy Statistics Database | Open Energy Information  

Open Energy Info (EERE)

UN-Energy Statistics Database UN-Energy Statistics Database Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UN-Energy Statistics Database Agency/Company /Organization: United Nations Sector: Energy Focus Area: Renewable Energy, Non-renewable Energy, Biomass, Geothermal, Hydrogen, Solar, - Concentrating Solar Power, - Solar PV, Wind Resource Type: Dataset Website: data.un.org/Explorer.aspx?d=EDATA Cost: Free Language: English UN-Energy Statistics Database Screenshot References: UN Data[1] "The United Nations Statistics Division (UNSD) of the Department of Economic and Social Affairs (DESA) launched a new internet based data service for the global user community. It brings UN statistical databases within easy reach of users through a single entry point (http://data.un.org/). Users can now search and download a variety of

63

United Nations Energy Knowledge Network (UN-Energy) | Open Energy  

Open Energy Info (EERE)

Network (UN-Energy) Network (UN-Energy) Jump to: navigation, search Logo: United Nations Energy Knowledge Network (UN-Energy) Name United Nations Energy Knowledge Network (UN-Energy) Address 405 E 42nd St New York, NY 10017-3599 Place New York, New York Website http://www.un-energy.org/ References http://www.un-energy.org/ No information has been entered for this organization. Add Organization "UN-Energy was initiated as a mechanism to promote coherence within the United Nations family of organizations in the energy field and to develop increased collective engagement between the United Nations and other key external stakeholders." References Retrieved from "http://en.openei.org/w/index.php?title=United_Nations_Energy_Knowledge_Network_(UN-Energy)&oldid=392377"

64

hello, poindexter! THE (UN)REMARKABLE DR. CHARLES LIU  

E-Print Network [OSTI]

hello, poindexter! THE (UN)REMARKABLE DR. CHARLES LIU October 8, 2008 at 12:35 pm · Filed under talk about whatever he thought hello, poindexter! » THE (UN)REMARKABLE DR. CHARLE... http

Liu, Charles

65

UN-Energy-Measuring Energy Access | Open Energy Information  

Open Energy Info (EERE)

UN-Energy-Measuring Energy Access UN-Energy-Measuring Energy Access Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UN-Energy-Measuring Energy Access Agency/Company /Organization: United Nations Energy Knowledge Network (UN-Energy) Sector: Energy Focus Area: Renewable Energy, Non-renewable Energy Topics: Co-benefits assessment, - Energy Access Resource Type: Dataset, Maps Website: www.un-energy.org/measuring-energy-access Cost: Free Language: English UN-Energy-Measuring Energy Access Screenshot References: UN-Energy-Measuring Energy Access[1] "A reliable and comprehensive information base is necessary to inform target-setting and to monitor outcomes. Openly available and visually attractive information presentation can support the design of innovative policies and measures, and underpin detailed analysis. UN-Energy, the

66

UNS Electric, Inc | Open Energy Information  

Open Energy Info (EERE)

UNS Electric, Inc UNS Electric, Inc Jump to: navigation, search Name UNS Electric, Inc Place Arizona Utility Id 19728 Utility Location Yes Ownership I NERC Location WECC NERC WECC Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Distribution Yes Activity Wholesale Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] Energy Information Administration Form 826[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png C.A.R.E.S - M 1200 kWh - 2000 kWh Residential C.A.R.E.S - M 601kWh - 1200 Residential C.A.R.E.S - M Over 2001 kWh Residential C.A.R.E.S 1000kWh and up Residential

67

Proposed ILC Parameters T.O. Raubenheimer  

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

-05-98 -05-98 Proposed ILC Parameters T.O. Raubenheimer and K. Yokoya Introduction In this note, we describe the proposed working parameter set for the KEK-SLAC ILC linear collider and discuss the reasons leading to the values listed; more ex- tensive discussion of the optimization process will be found in subsequent notes. The parameter set is listed in Table 1 and is compared with the JLC 3-97 parameters and the NLC ZDR parameters in Table 2. The new parameter set has an operating plane which ranges from low IP emittances and high luminosity (cases A) to large IP emittances and smaller luminosity (cases C). Over this range, the bunch charge, bunch length, and IP beta functions are varied, however, the parameters have been chosen so that the tolerances on the accelerating structures are roughly constant. The collider must be designed to operate over the entire parameter range. In all cases,

68

Parameters Identification for Motorcycle Simulator's Platform Characterization  

E-Print Network [OSTI]

Parameters Identification for Motorcycle Simulator's Platform Characterization L. Nehaoua H modeling and parameters identification of a motorcycle simulator's platform. This model begins with some (cars and motorcycles) is possible by taking in care some characteristics of land vehicles. Indeed

Paris-Sud XI, Université de

69

Free Parameters and Frameworks in Minimal Supersymmetry  

E-Print Network [OSTI]

405 Appendix A Free Parameters and Frameworks in Minimal Supersymmetry It is useful to discuss what the various schemes that exist for reducing the set of free parameters to a manageable number. The information, and so is fixed by experiment. The free parameters consist mainly of the coe#cients of the ``soft

California at Berkeley, University of

70

Free Parameters and Frameworks in Minimal Supersymmetry  

E-Print Network [OSTI]

405 Appendix A Free Parameters and Frameworks in Minimal Supersymmetry It is useful to discuss what the various schemes that exist for reducing the set of free parameters to a manageable number. The information, and so is fixed by experiment. The free parameters consist mainly of the coefficients of the "soft

California at Berkeley, University of

71

Advancing Explosives Detection Capabilities: Vapor Detection  

ScienceCinema (OSTI)

A new, PNNL-developed method provides direct, real-time detection of trace amounts of explosives such as RDX, PETN and C-4. The method selectively ionizes a sample before passing the sample through a mass spectrometer to detect explosive vapors. The method could be used at airports to improve aviation security.

Atkinson, David

2014-07-24T23:59:59.000Z

72

Un modelo matem'atico para la operaci'on 'optima de corto plazo de un sistema el'ectrico  

E-Print Network [OSTI]

'on 'optima de la pro­ ducci'on de energ'ia el'ectrica, en un per'iodo de varios d'ias. Dado un sistema el se orienta a los sistemas chileno y uruguayo. 1 Introducci'on Para satisfacer la demanda de energ'ia un sistema el'ectrico formado por un conjunto I de unidades generadoras de energ'ia, ubicadas en

73

Detection & Diagnostic Systems - Nuclear Engineering Division (Argonne)  

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

Departments > Detection & Diagnostic Departments > Detection & Diagnostic Systems DEPARTMENTS Engineering Analysis Nuclear Systems Analysis Research & Test Reactor Nonproliferation and National Security Detection & Diagnostic Systems Engineering Development & Applications Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Celebrating the 70th Anniversary of Chicago Pile 1 (CP-1) Argonne OutLoud on Nuclear Energy Argonne Energy Showcase 2012 Detection & Diagnostic Systems Bookmark and Share The Detection & Diagnostic Systems Department conducts research and development related to instruments and non-destructive evaluation (NDE) techniques for characterization of materials and determination of system parameters related to different energy systems (including fossil,

74

Parameterised structured light imaging for depth edge detection  

E-Print Network [OSTI]

, [amin, amax], from the projector/camera', `width of horizontal stripes, w', and `minimum detectable depth difference, rmin'. As can be seen in Fig. 1a, amax and rmin are given as the input parameters of [amin, amax] are guaranteed to be detected. However, awkwardly enough, amin is found at a later step

California at Santa Barbara, University of

75

Leak detection on an ethylene pipeline  

SciTech Connect (OSTI)

A model-based leak detection system has been in operation on the Solvay et Cie ethylene pipeline from Antwerp to Jemeppe on Sambre since 1989. The leak detection system, which is the commercial product PLDS of Modisette Associations, Inc., was originally installed by the supplier. Since 1991, all system maintenance and configuration changes have been done by Solvay et Cie personnel. Many leak tests have been performed, and adjustments have been made in the configuration and the automatic tuning parameters. The leak detection system is currently able to detect leaks of 2 tonnes/hour in 11 minutes with accurate location. Larger leaks are detected in about 2 minutes. Leaks between 0.5 and 1 tonne per hour are detected after several hours. (The nominal mass flow in the pipeline is 15 tonnes/hour, with large fluctuations.) Leaks smaller than 0.5 tonnes per hour are not detected, with the alarm thresholds set at levels to avoid false alarms. The major inaccuracies of the leak detection system appear to be associated with the ethylene temperatures.

Hamande, A.; Condacse, V.; Modisette, J.

1995-12-31T23:59:59.000Z

76

Revolution in Detection Affairs  

SciTech Connect (OSTI)

The detection of nuclear or radioactive materials for homeland or national security purposes is inherently difficult. This is one reason detection efforts must be seen as just one part of an overall nuclear defense strategy which includes, inter alia, material security, detection, interdiction, consequence management and recovery. Nevertheless, one could argue that there has been a revolution in detection affairs in the past several decades as the innovative application of new technology has changed the character and conduct of detection operations. This revolution will likely be most effectively reinforced in the coming decades with the networking of detectors and innovative application of anomaly detection algorithms.

Stern W.

2013-11-02T23:59:59.000Z

77

UN-Glossary for Transportation Statistics | Open Energy Information  

Open Energy Info (EERE)

UN-Glossary for Transportation Statistics UN-Glossary for Transportation Statistics Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UN-Glossary for Transportation Statistics Agency/Company /Organization: United Nations Focus Area: Transportation Resource Type: Dataset, Publications Website: www.internationaltransportforum.org/Pub/pdf/GloStat3e.pdf Cost: Free UN-Glossary for Transportation Statistics Screenshot References: UN-Glossary for Transportation Statistics[1] Logo: UN-Glossary for Transportation Statistics "The Glossary for Transport Statistics was published for the first time in 1994 with the purpose of assisting member countries during the collection of data on transport made by the UNECE, ECMT and Eurostat through the Common Questionnaire." References ↑ "UN-Glossary for Transportation Statistics"

78

Single-Molecule Detection  

Science Journals Connector (OSTI)

Detection of single molecules represents the ultimate level of sensitivity and ... background, fluorescence is one obvious choice for single-molecule detection (SMD). However, SMD using ... first report on SMD us...

2006-01-01T23:59:59.000Z

79

Un atlas smantique pour le cerveau Un des buts principaux de ce projet est le dveloppement d'un outil qui permettra  

E-Print Network [OSTI]

Un atlas sémantique pour le cerveau Un des buts principaux de ce projet est le développement d construire des représentations sémantiques à partir de large corpus de textes (les Atlas sémantiques (AS

Institut des Sciences Cognitives, CNRS

80

Sensitivity analysis of Stirling engine design parameters  

SciTech Connect (OSTI)

In the preliminary Stirling engine design process, the values of some design parameters (temperature ratio, swept volume ratio, phase angle and dead volume ratio) have to be assumed; as a matter of fact it can be difficult to determine the best values of these parameters for a particular engine design. In this paper, a mathematical model is developed to analyze the sensitivity of engine's performance variations corresponding to variations of these parameters.

Naso, V.; Dong, W.; Lucentini, M.; Capata, R.

1998-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Adjustable Robust Parameter Design with Unknown Distributions  

E-Print Network [OSTI]

Mar 27, 2013 ... Adjustable Robust Parameter Design with Unknown Distributions. ihsan Yanikoglu(i.yanikoglu ***at*** uvt.nl) Dick den Hertog(d.denhertog...

ihsan Yanikoglu

2013-03-27T23:59:59.000Z

82

Thermal Hydraulic Simulations, Error Estimation and Parameter  

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

Error Estimation and Parameter Sensitivity Studies in Drekar::CFD Thomas M. Smith, John N. Shadid, Roger P. Pawlowski, Eric C. Cyr and Timothy M. Wildey Sandia National...

83

Adjoint Lattice Boltzmann Equation for Parameter Identification  

E-Print Network [OSTI]

Adjoint Lattice Boltzmann Equation for Parameter Identification M.M. Tekitek a,b , M. Bouzidi c , F@asci.fr, francois.dubois@math.u-psud.fr, pierre.lal@free.fr 26 January 2005 Abstract. The Lattice Boltzmann to the Lattice Boltzmann Equation to get expressions for the derivatives of the cost function vs. parameters

Boyer, Edmond

84

PARAMETER ESTIMATION IN PETROLEUM AND GROUNDWATER MODELING  

E-Print Network [OSTI]

on grand challenge problems. In today's petroleum industry, reservoir simulators are routinely usedPARAMETER ESTIMATION IN PETROLEUM AND GROUNDWATER MODELING R.E. Ewing, M.S. Pilant, J.G. Wade in the model, the numerical discretization used, and the solution algorithms employed. Parameter identification

Ewing, Richard E.

85

Arythmie cardiaque rvlant un lipome intracardiaque  

Science Journals Connector (OSTI)

Rsum Les lipomes intracardiaques sont des tumeurs bnignes extrmement rares. Les lipomes intressant le septum interauriculaire sont distingus en lipome vrai et en hypertrophie lipomateuse du septum interauriculaire. Ces deux entits bien dfinies sont parfois de diffrenciation difficile. Nous rapportons lobservation dun patient de 58 ans, prsentant une hypertrophie lipomateuse du septum interauriculaire rvle par des troubles du rythme et complique secondairement dune insuffisance coronarienne. La tomodensitomtrie thoracique et limagerie par rsonance magntique ont permis dvoquer une tumeur de tonalit graisseuse du septum interauriculaire, confirme en peropratoire et par ltude histologique. Cardiac tissue is a very rare localization for benign lipoma. Interseptal lipoma and lipomatous hypertrophy of the interatrial septum are two distinguished entities. We report the case of a 58-year-old patient who developed lipomatous hypertrophy of the interatrial septum which was revealed by arrhythmia. Diagnosis was suspected at magnetic resonance imaging and was confirmed intraoperatively and histologically.

I. Ben Ghorbel; A. Braham; M. Lamloum; S. Haouet; K. Chelaifa; M.H. Houman; M. Miled

2004-01-01T23:59:59.000Z

86

Le Venezuela en un clin d'oeil !  

E-Print Network [OSTI]

Le Venezuela en un clin d'oeil ! Vie scolaire CALENDRIER UNIVERSITAIRE Peut varier d votre session à l'Université de Montréal. SYST?ME D'ENSEIGNEMENT Québec Venezuela Baccalauréat. Le Venezuela étant un pays limitrophe à la Colombie, le thème de la sécurité est un sujet important à

Charette, André

87

President Obama Chairs Historic UN Security Council Meeting | National  

National Nuclear Security Administration (NNSA)

Chairs Historic UN Security Council Meeting | National Chairs Historic UN Security Council Meeting | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > President Obama Chairs Historic UN Security Council Meeting President Obama Chairs Historic UN Security Council Meeting September 24, 2009

88

Un Seminar On The Utilization Of Geothermal Energy For Electric...  

Open Energy Info (EERE)

Un Seminar On The Utilization Of Geothermal Energy For Electric Power Production And Space Heating, Florence 1984, Section 2- Geothermal Resources Jump to: navigation, search...

89

Modlisation thermomcanique d'un pidroit de four coke.  

E-Print Network [OSTI]

??Inscrite dans le cadre du projet europen Coke Oven Operating Limits, cette thse porte sur la modlisation thermomcanique d'un pidroit de cokerie. Le pidroit est (more)

Landreau, Matthieu

2009-01-01T23:59:59.000Z

90

Thorie d'un faisceau gaussien dans un laser gaz G. Stephan et H. Taleb  

E-Print Network [OSTI]

Gaussian eigen-mode of a homogeneous cavity. This theory predicts that two parameters characterizing and for several values of the geometrical parameters of the cavity. J. Physique 42 (1981) 1623-1639 D?CEMBRE 1981 faisceau lumi- neux. Cette théorie est semi-analytique et semi- numérique ; elle est appliquable aux lasers

Paris-Sud XI, Université de

91

SUR UN THEOR`EME DE DAY, UN THEOR`EME DE MAZURORLICZ, ET UNE GENERALISATION DE QUELQUES  

E-Print Network [OSTI]

SUR UN TH´EOR`EME DE DAY, UN TH´EOR`EME DE MAZUR­ORLICZ, ET UNE G´EN´ERALISATION DE QUELQUES TH´EOR (`a gauche) sont analogues. Un th´eor`eme fondamental de Day est que tout semi-groupe ab´elien discret est moyennable. Une des m´ethodes pour ´etablir le th´eor`eme de Day consiste `a ap- pliquer

Chojnacki, Wojtek

92

MFV Reductions of MSSM Parameter Space  

E-Print Network [OSTI]

The 100+ free parameters of the minimal supersymmetric standard model (MSSM) make it computationally difficult to compare systematically with data, motivating the study of specific parameter reductions such as the cMSSM and pMSSM. Here we instead study the reductions of parameter space implied by using minimal flavour violation (MFV) to organise the R-parity conserving MSSM, with a view towards systematically building in constraints on flavour-violating physics. Within this framework the space of parameters is reduced by expanding soft supersymmetry-breaking terms in powers of the Cabibbo angle, leading to a 24-, 30- or 42-parameter framework (which we call MSSM-24, MSSM-30, and MSSM-42 respectively), depending on the order kept in the expansion. We provide a Bayesian global fit to data of the MSSM-30 parameter set to show that this is manageable with current tools. We compare the MFV reductions to the 19-parameter pMSSM choice and show that the pMSSM is not contained as a subset. The MSSM-30 analysis favours a relatively lighter TeV-scale pseudoscalar Higgs boson and $\\tan \\beta \\sim 10$ with multi-TeV sparticles.

S. S. AbdusSalam; C. P. Burgess; F. Quevedo

2015-02-09T23:59:59.000Z

93

Think Detection. Think Prevention.  

E-Print Network [OSTI]

Think Detection. Think Prevention. Think Activity. Office Ergonomics: #12;The Case of Mr. Z Mr. Z..........................................................................................7 Think Prevention. Ergonomics .............................................................11 What is office ergonomics?................................................................11 Making Your

Calgary, University of

94

EMSL - secondary ion detection  

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

secondary-ion-detection en Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. http:www.emsl.pnl.govemslwebpublicationsmagnesium-behavior-and-struc...

95

Fractura y mecanismos de deformacin de un polipropileno reforzado con cenizas y modificado con un copolmero de bloque.  

E-Print Network [OSTI]

??En esta memoria se presenta los resultados del estudio de la fractura y los mecanismos de deformacin de materiales compuestos basados en polipropileno (PP), un (more)

Garca Pardo, Santiago

2011-01-01T23:59:59.000Z

96

Variations in Schumann resonances and their relation to atmospheric electric parameters at Nagycenk station  

E-Print Network [OSTI]

Variations in Schumann resonances and their relation to atmospheric electric parameters at Nagycenk electric potential gradient (PG) and Schumann resonances at Nagycenk station (Hungary) from 1993 to 1996. Annual and semiannual variations detected previously in the relative amplitudes of Schumann resonances

Paris-Sud XI, Université de

97

Convolution Particle Filter for Parameter Estimation in General State-Space Models  

E-Print Network [OSTI]

study. Index Terms Bayes procedures, Hidden Markov models, Marine vehicle detection and tracking, Monte Campillo and Vivien Rossi Abstract The state-space modeling of partially observed dynamical systems to the parameter components or to the deterministic component of the dynamical system. However, this approach

Rossi, Vivien

98

Displacement-Parameter Weighted Coordinate Comparison: I. Detection of Significant Structural Differences Between Oxidation States  

Science Journals Connector (OSTI)

The overlap predicted from B values of paired atoms in two structures to be compared is used to develop a probabilty of difference which is shown to correlate with features in difference maps and to reveal significant differences.

Peters-Libeu, C.

1997-01-01T23:59:59.000Z

99

NREL: PVWatts - How to Change Parameters  

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

Change Parameters Change Parameters The PVWattsTM calculator allows users to substitute its default input parameters with custom values. Learn how to change the PVWatts parameters for: DC rating DC-to-AC derate factor Array type Tilt angle Azimuth angle Electricity cost DC Rating The size of a photovoltaic (PV) system is its nameplate DC power rating. This is determined by adding the PV module power listed on the nameplates of the PV modules in watts and then dividing the sum by 1,000 to convert it to kilowatts (kW). PV module power ratings are for standard test conditions (STC) of 1,000 W/m2 solar irradiance and 25°C PV module temperature. The default PV system size is 4 kW. This corresponds to a PV array area of approximately 35 m2 (377 ft2). Caution: For correct results, the DC rating input must be the nameplate DC

100

Quantifying the parameters of successful agricultural producers  

E-Print Network [OSTI]

The primary purpose of the study was to quantify the parameters of successful agricultural producers. Through the use of the Financial and Risk Management (FARM) Assistance database, this study evaluated economic measures for row-crop producers...

Kaase, Gregory Herman

2006-08-16T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Uncertainty evaluation of delayed neutron decay parameters  

E-Print Network [OSTI]

parameters fit their individual measurement data well in spite of these differences. This dissertation focuses on evaluation of the errors and methods of delayed neutron relative yields and decay constants for thermal fission of U-235. Various numerical...

Wang, Jinkai

2009-05-15T23:59:59.000Z

102

Nonlinear Ensemble Parameter Perturbation for Climate Models  

Science Journals Connector (OSTI)

Model parameters can introduce significant uncertainties in climate simulations. Sensitivity analysis provides a way to quantify such uncertainties. Existing sensitivity analysis methods, however, cannot estimate the maximum sensitivity of the ...

Xudong Yin; Juanjuan Liu; Bin Wang

103

Orthogonality of Macdonald polynomials with unitary parameters  

E-Print Network [OSTI]

For any admissible pair of irreducible reduced crystallographic root systems, we present discrete orthogonality relations for a finite-dimensional system of Macdonald polynomials with parameters on the unit circle subject to a truncation relation.

J. F. van Diejen; E. Emsiz

2013-08-12T23:59:59.000Z

104

Measurement on physical parameters of raindrop energy  

Science Journals Connector (OSTI)

As a result, how to determine the rainfall energy (e) and intensity (I) of one unit period is the key to measure and calculate the energy. Between these two parameters, I is ... rainfall precipitation and rainfal...

Minghang Guo; Jinshi Jian; Zhun Zhao; Juying Jiao

2013-12-01T23:59:59.000Z

105

Vertical Axis Wind Turbine Foundation parameter study  

SciTech Connect (OSTI)

The dynamic failure criterion governing the dimensions of prototype Vertical Axis Wind Turbine Foundations is treated as a variable parameter. The resulting change in foundation dimensions and costs is examined.

Lodde, P.F.

1980-07-01T23:59:59.000Z

106

Nonlinear parameter estimation in parallel computing environments  

E-Print Network [OSTI]

This thesis examines issues related to the paralielization of PESTI a parameter estimation code which was originally developed by Dr. A. T. Watson. PEST is based on the trust region implementation of Levenberg-Marquardt nonlinear least square...

Li, Jie

2012-06-07T23:59:59.000Z

107

Russia, China veto UN resolution on Syria 4 February 2012  

E-Print Network [OSTI]

Russia, China veto UN resolution on Syria 4 February 2012 UNITED NATIONS (AP) ­ The U.N. Security Council failed again Saturday to take decisive action to stop the escalating violence in Syria as Russia. It was the second time in four months that Russia and China used their veto power to block a Security Council

108

ISO 9001 : LES ENJEUX DU RECOURS A UN REFERENTIEL  

E-Print Network [OSTI]

ISO 9001 : LES ENJEUX DU RECOURS A UN REFERENTIEL QUALITE SUPPLEMENTAIRE POUR LA PROFESSION de déterminer les enjeux principaux de l'obtention de la norme ISO 9001 pour un cabinet d of obtaining the standard ISO 9001 for a certified public accountant firm. Initially, we will reconsider

Boyer, Edmond

109

7 Free Will Is Un-natural John A. Bargh  

E-Print Network [OSTI]

7 Free Will Is Un-natural John A. Bargh The history of social psychology, and especially its/16/2007 11:22:39 AM #12;free will is un-natural 129 the work.... We must build up the same resistance of the work." The present analysis of the scientific status of the free will concept is there- fore

Bargh, John A.

110

Planetary Nebulae Detection  

E-Print Network [OSTI]

layers develop deep convective zone, surface expands, mass loss due to stellar wind · Star moves from tip1 Planetary Nebulae · Detection · Distribution in the Galaxy · Central Stars · Evolution · Bipolar to dust) · Difficult to detect in radio (fainter than H II regions) · Projected number based on surveys

Crenshaw, Michael

111

Array for detecting microbes  

DOE Patents [OSTI]

The present embodiments relate to an array system for detecting and identifying biomolecules and organisms. More specifically, the present embodiments relate to an array system comprising a microarray configured to simultaneously detect a plurality of organisms in a sample at a high confidence level.

Andersen, Gary L.; DeSantis, Todd D.

2014-07-08T23:59:59.000Z

112

Circle based community detection  

Science Journals Connector (OSTI)

The connection patterns among individuals or objects in complex (social) networks possess rich information that can be useful for conducting effecient network analysis. In particular we consider the task of community detection in social networks. Nowadays ... Keywords: community detection, social networks

Hemank Lamba; Ramasuri Narayanam

2013-10-01T23:59:59.000Z

113

Scnarios d'interaction rotor/stator pour un compresseur haute pression d'un moteur d'hlicoptre  

E-Print Network [OSTI]

Scénarios d'interaction rotor/stator pour un compresseur haute pression d'un moteur d'hélicoptère A plus de prévoir les zones d'interaction. Rotor-stator interaction scenarios for the centrifugal in the centrifugal com- pressor of helicopter engines when structural contacts occur between the blade

Boyer, Edmond

114

tre calcule au voisinage d'un point critique de la densit de phonons en supposant un double gap.  

E-Print Network [OSTI]

dans un supraconducteur au- dessus de Tc dans le cas de la limite sale. Les solutions sont utilisées auL + eV. Donc pour établir et résoudre les équations de Dyson pour les propagateurs renor- malisés à un

Paris-Sud XI, Université de

115

Cosmological parameter estimation: impact of CMB aberration  

SciTech Connect (OSTI)

The peculiar motion of an observer with respect to the CMB rest frame induces an apparent deflection of the observed CMB photons, i.e. aberration, and a shift in their frequency, i.e. Doppler effect. Both effects distort the temperature multipoles a{sub lm}'s via a mixing matrix at any l. The common lore when performing a CMB based cosmological parameter estimation is to consider that Doppler affects only the l = 1 multipole, and neglect any other corrections. In this paper we reconsider the validity of this assumption, showing that it is actually not robust when sky cuts are included to model CMB foreground contaminations. Assuming a simple fiducial cosmological model with five parameters, we simulated CMB temperature maps of the sky in a WMAP-like and in a Planck-like experiment and added aberration and Doppler effects to the maps. We then analyzed with a MCMC in a Bayesian framework the maps with and without aberration and Doppler effects in order to assess the ability of reconstructing the parameters of the fiducial model. We find that, depending on the specific realization of the simulated data, the parameters can be biased up to one standard deviation for WMAP and almost two standard deviations for Planck. Therefore we conclude that in general it is not a solid assumption to neglect aberration in a CMB based cosmological parameter estimation.

Catena, Riccardo [Institut fr Theoretische Physik, Friedrich-Hund-Platz 1, 37077 Gttingen (Germany); Notari, Alessio, E-mail: riccardo.catena@theorie.physik.uni-goettingen.de, E-mail: notari@ffn.ub.es [Departament de Fsica Fondamental i Institut de Cincies del Cosmos, Universitat de Barcelona, Mart i Franqus 1, 08028 Barcelona (Spain)

2013-04-01T23:59:59.000Z

116

Explosive Detection Program  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To standardize and accelerate implementation of the Department of Energy (DOE) explosive detection program. DOE N 251.40, dated 5/3/01, extends this directive until 12/31/01.

2000-10-26T23:59:59.000Z

117

Idaho Explosive Detection System  

ScienceCinema (OSTI)

Learn how INL researchers are making the world safer by developing an explosives detection system that can inspect cargo. For more information about INL security research, visit http://www.facebook.com/idahonationallaboratory

Klinger, Jeff

2013-05-28T23:59:59.000Z

118

Idaho Explosive Detection System  

SciTech Connect (OSTI)

Learn how INL researchers are making the world safer by developing an explosives detection system that can inspect cargo. For more information about INL security research, visit http://www.facebook.com/idahonationallaboratory

Klinger, Jeff

2011-01-01T23:59:59.000Z

119

Detection of counterfeit currency  

DOE Patents [OSTI]

A method of detecting counterfeit currency by contacting the currency to be tested with near infrared beams in the spectrum below 1250 namometers, measuring reflectance of the near infrared beams and comparing the reflectance values with those from genuine currency.

Burns, Donald A. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

120

Energy Detectives (3 Activities)  

K-12 Energy Lesson Plans and Activities Web site (EERE)

Students explore the classroom as they look and feel for signs of energy. They record the ways they use energy throughout a typical day in an energy detective journal.

Note: This page contains sample records for the topic "detection un parameter" 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

IFT2015 Miklos Csuros 31 janvier 2011 Un arbre est une structure recursive qui joue un r^ole central dans la conception et analyse d'algorithmes  

E-Print Network [OSTI]

(n - 1) noeuds internes. Th´eor`eme 6.2. La hauteur h d'un arbre binaire `a n noeuds externes est. est un noeud externe, ou 2. est compos´e d'un noeud interne appell´e la racine r, et un ensemble d´e T est une structure d´efinie sur un ensemble de noeuds qui 1. est un noeud externe, ou 2. est compos´e d'un

Csürös, Miklós

122

Enhanced photoacoustic detection using photonic crystal substrate  

SciTech Connect (OSTI)

This paper demonstrates the enhanced photoacoustic sensing of surface-bound light absorbing molecules and metal nanoparticles using a one-dimensional photonic crystal (PC) substrate. The PC structure functions as an optical resonator at the wavelength where the analyte absorption is strong. The optical resonance of the PC sensor provides an intensified evanescent field with respect to the excitation light source and results in enhanced optical absorption by surface-immobilized samples. For the analysis of a light absorbing dye deposited on the PC surface, the intensity of photoacoustic signal was enhanced by more than 10-fold in comparison to an un-patterned acrylic substrate. The technique was also applied to detect gold nanorods and exhibited more than 40 times stronger photoacoustic signals. The demonstrated approach represents a potential path towards single molecule absorption spectroscopy with greater performance and inexpensive instrumentation.

Zhao, Yunfei; Liu, Kaiyang [Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011 (United States); McClelland, John [Ames Laboratory-USDOE, Ames, Iowa 50011 (United States); Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011 (United States); Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, Iowa 50011 (United States); Lu, Meng, E-mail: menglu@iastate.edu [Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011 (United States); Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011 (United States)

2014-04-21T23:59:59.000Z

123

Impresiones de un investigador 'gringo' en Buenos Aires  

E-Print Network [OSTI]

, Eduardo Pavlovsky y Kive Staiff,9 los tres se refirieron al hecho de que en la segunda mitad de la dcada de los '50 se haba creado un ambiente y un pblico~por minoritario que fuera-propicio y enterado, respectivamente, para quienes el teatro de..., representada en los estrenos de El Sr. Magnus y hijos (1970) y de Historia tendenciosa... (1971) de Ricardo Monti. Veamos esto por partes. En primer lugar, a partir de los aos 1970- 1971, comienza a desplegarse un fenmeno que podramos llamar de...

Roster, Peter

1991-04-01T23:59:59.000Z

124

Multi-parameter on-line coal bulk analysis  

SciTech Connect (OSTI)

This was a four-year grant that was given a no cost extension for one more year. The purpose of the grant was to develop a pulsed neutron-based technique that could measure on-line all the major and minor elements in coal. Such measurements would allow the continuous monitoring of bulk parameters such as coal heating value (BTU/lb), volatile matter, moisture etc., deemed important to the coal industry. Such parameters, along with the continuous measurement of elements such as sulfur and sodium, are of major economic and environmental concern, and their measurement would assist in a more efficient use of the coal-fired boilers, as well as limiting emissions controlled by the 1990 Clean Air Act Amendments. It was hoped that this study would lead to the development of a technique able to create a marketable product, an On-Line Elemental Coal Analyzer. The study was separated in the following major parts: (1) Devise an efficient system for the detection of gamma rays; (2) Prior to experimentation, perform modeling and simulations for items such as detector shielding, coal sample configuration, and neutron tube collimation; (3) Develop a computer code for data reduction and analysis; (4) Measure the elemental composition of various coal samples; and (5) Design a prototype, on-line elemental coal analyzer, based on the PFTNA principle.

NONE

1999-02-01T23:59:59.000Z

125

Chemical kinetics parameters of nuclear graphite gasification  

Science Journals Connector (OSTI)

This paper provides chemical kinetics parameters for the gasification of nuclear graphite grades of IG-110, IG-430, NBG-18 and NBG-25 and presents empirical correlations for their surface areas of free active sites as a function of mass. The kinetics parameters for the four elementary chemical reactions of gasification of these grades of nuclear graphite include the values and Gaussian distributions of the specific activation energies and the values of the pre-exponential rate coefficients for the adsorption of oxygen and desorption of CO and CO2 gases. The values of these parameters and the surface area of free active sites for IG-110 and NB-25, with fine and medium petroleum coke filler particles, are nearly the same, but slightly different from those of NBG-18 and IG-430, with medium and fine coal tar pitch coke filler particles. Recommended parameters are applicable to future safety analysis of high and very high temperature gas cooled reactors in the unlikely event of a massive air ingress accident.

Mohamed S. El-Genk; Jean-Michel P. Tournier

2013-01-01T23:59:59.000Z

126

Planck 2015 results. XIII. Cosmological parameters  

E-Print Network [OSTI]

We present results based on full-mission Planck observations of temperature and polarization anisotropies of the CMB. These data are consistent with the six-parameter inflationary LCDM cosmology. From the Planck temperature and lensing data, for this cosmology we find a Hubble constant, H0= (67.8 +/- 0.9) km/s/Mpc, a matter density parameter Omega_m = 0.308 +/- 0.012 and a scalar spectral index with n_s = 0.968 +/- 0.006. (We quote 68% errors on measured parameters and 95% limits on other parameters.) Combined with Planck temperature and lensing data, Planck LFI polarization measurements lead to a reionization optical depth of tau = 0.066 +/- 0.016. Combining Planck with other astrophysical data we find N_ eff = 3.15 +/- 0.23 for the effective number of relativistic degrees of freedom and the sum of neutrino masses is constrained to Spatial curvature is found to be |Omega_K| < 0.005. For LCDM we find a limit on the tensor-to-scalar ratio of r <0.11 consistent with the B-mode constraints fr...

,

2015-01-01T23:59:59.000Z

127

Lumped-parameter models Lars Bo Ibsen  

E-Print Network [OSTI]

of Civil Engineering Division of Water and Soil Lumped-parameter models by Lars Bo Ibsen Morten Liingaard explanations and results than typically allowed in scientific journals. Technical Memoranda are produced of this kind. Contract Reports are produced to report scientific work carried out under contract. Publications

128

Models and parameters for environmental radiological assessments  

SciTech Connect (OSTI)

This book presents a unified compilation of models and parameters appropriate for assessing the impact of radioactive discharges to the environment. Models examined include those developed for the prediction of atmospheric and hydrologic transport and deposition, for terrestrial and aquatic food-chain bioaccumulation, and for internal and external dosimetry. Chapters have been entered separately into the data base. (ACR)

Miller, C W [ed.] [ed.

1984-01-01T23:59:59.000Z

129

SEGMENTATION INDEPENDENT ESTIMATES OF TURBULENCE PARAMETERS  

E-Print Network [OSTI]

SEGMENTATION INDEPENDENT ESTIMATES OF TURBULENCE PARAMETERS G. C. Papanicolaoua, K. Solnab and D, University of Utah, Salt Lake City, UT 84112 cPhillips Laboratory, Kirtland AFB, NM 87117 ABSTRACT We present of the detail coe cients at scale j. The spectrum can therefore be interpreted as representing the energy

Papanicolaou, George C.

130

Basic Parameter Estimation of Binary Neutron Star Systems by the Advanced LIGO/Virgo Network  

Science Journals Connector (OSTI)

Within the next five years, it is expected that the Advanced LIGO/Virgo network will have reached a sensitivity sufficient to enable the routine detection of gravitational waves. Beyond the initial detection, the scientific promise of these instruments relies on the effectiveness of our physical parameter estimation capabilities. A major part of this effort has been toward the detection and characterization of gravitational waves from compact binary coalescence, e.g., the coalescence of binary neutron stars. While several previous studies have investigated the accuracy of parameter estimation with advanced detectors, the majority have relied on approximation techniques such as the Fisher Matrix which are insensitive to the non-Gaussian nature of the gravitational wave posterior distribution function. Here we report average statistical uncertainties that will be achievable for strong detection candidates (S/N = 20) over a comprehensive sample of source parameters. We use the Markov Chain Monte Carlo based parameter estimation software developed by the LIGO/Virgo Collaboration with the goal of updating the previously quoted Fisher Matrix bounds. We find the recovery of the individual masses to be fractionally within 9% (15%) at the 68% (95%) credible intervals for equal-mass systems, and within 1.9% (3.7%) for unequal-mass systems. We also find that the Advanced LIGO/Virgo network will constrain the locations of binary neutron star mergers to a median uncertainty of 5.1 deg2 (13.5 deg2) on the sky. This region is improved to 2.3 deg2 (6 deg2) with the addition of the proposed LIGO India detector to the network. We also report the average uncertainties on the luminosity distances and orbital inclinations of strong detections that can be achieved by different network configurations.

Carl L. Rodriguez; Benjamin Farr; Vivien Raymond; Will M. Farr; Tyson B. Littenberg; Diego Fazi; Vicky Kalogera

2014-01-01T23:59:59.000Z

131

UN Sustainable Energy for All | Open Energy Information  

Open Energy Info (EERE)

UN Sustainable Energy for All UN Sustainable Energy for All Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UN Sustainable Energy for All Initiative Agency/Company /Organization: United Nations Sector: Energy Focus Area: Renewable Energy, Energy Efficiency Phase: Bring the Right People Together, Create a Vision, Evaluate Effectiveness and Revise as Needed Topics: - Energy Access Resource Type: Lessons learned/best practices User Interface: Website Website: www.sustainableenergyforall.org/ Cost: Free Language: English UN Year of Sustainable Energy for All Energy is central to nearly every major challenge, and opportunity the world faces today. Be it jobs, security, climate change, food production or increasing incomes , access to sustainable energy for all is essential for

132

Mesa Cooperativa es un concilio estudiantil que cubre  

E-Print Network [OSTI]

Aprenda sobre diferentes orígenes y bailes que la Salsa incorpora Redes Sociales Salsa es un baile fondos y eventos sociales. · Gane oportunidades de redes sociales, amigos, y mantenga su forma física

de Lijser, Peter

133

President Barack Obama at UN Climate Change Summit  

ScienceCinema (OSTI)

In his first address to the United Nations as Commander-in- Chief, President Obama addresses the pressing issue of climate change. The one-day UN summit brought together delegations from 90 nations. September 22, 2009 (Public Domain)

Obama, Barack

2013-05-29T23:59:59.000Z

134

Un Modelo Cinematico para la Interpretacion Tridimensional de Proyecciones Poliedricas.  

E-Print Network [OSTI]

Federico Thomas Institut de Robotica i Informatica Industrial Gran Capita 2-4 08034 Barcelona e-mail: llros realizacion espacial del dibujo. En este trabajo abordamos un problema clasico de Robotica e Inteligencia Arti

Ros, Lluís

135

VISON : Vers un Intranet Scuris Ouvert au Nomadisme Eric Gautrin  

E-Print Network [OSTI]

VISON : Vers un Intranet Sécurisé Ouvert au Nomadisme Eric Gautrin Comité de Concertation des fondamentales et appliquées dans les domaines des sciences et technologies de l'information et de la

Paris-Sud XI, Université de

136

WA_04_039_HONEYWELL_INTERNATIONAL_Waiver_of_Patent_Rights_Un...  

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

9HONEYWELLINTERNATIONALWaiverofPatentRightsUn.pdf WA04039HONEYWELLINTERNATIONALWaiverofPatentRightsUn.pdf WA04039HONEYWELLINTERNATIONALWaiverofPatentRights...

137

Analisi, disegno e fabbricazione di un bersaglio aereo tattico, rimorchiato da UAV.  

E-Print Network [OSTI]

??Disegno di un bersaglio aereo tattico rimorchiato in volo da un uav, pensato per esercitazioni con fuoco reale di contraerea. Analisi degli ingombri, analisi aerodinamica, (more)

LAUDISIO, MARCO

2011-01-01T23:59:59.000Z

138

Adaptive filters for detection of gravitational waves from coalescing binaries  

SciTech Connect (OSTI)

In this work we propose use of infinite impulse response adaptive line enhancer (IIR ALE) filters for detection of gravitational waves from coalescing binaries. We extend our previous work and define an adaptive matched filter structure. Filter performance is analyzed in terms of the tracking capability and determination of filter parameters. Furthermore, following the Neyman-Pearson strategy, receiver operating characteristics are derived, with closedform expressions for detection threshold, false alarm, and detection probability. Extensive tests demonstrate the effectiveness of adaptive filters both in terms of small computational cost and robustness.

Eleuteri, Antonio; Milano, Leopoldo; De Rosa, Rosario; Garufi, Fabio; Acernese, Fausto; Barone, Fabrizio; Giordano, Lara; Pardi, Silvio [Dip. di Scienze Fisiche, Universita di Napoli 'Federico II', via Cintia, I-80126 Naples (Italy) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy); Dip. di Scienze Farmaceutiche, Universita di Salerno, via Ponte Don Melillo, 84084 Fisciano (Saudi Arabia) (IT) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy); Dip. di Matematica ed Applicazioni, Universita di Napoli 'Federico II', via Cintia, I-80126 Naples (Italy) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy)

2006-06-15T23:59:59.000Z

139

Temperature differential detection device  

DOE Patents [OSTI]

A temperature differential detection device for detecting the temperature differential between predetermined portions of a container wall is disclosed as comprising a Wheatstone bridge circuit for detecting resistance imbalance with a first circuit branch having a first elongated wire element mounted in thermal contact with a predetermined portion of the container wall, a second circuit branch having a second elongated wire element mounted in thermal contact with a second predetermined portion of a container wall with the wire elements having a predetermined temperature-resistant coefficient, an indicator interconnected between the first and second branches remote from the container wall for detecting and indicating resistance imbalance between the first and second wire elements, and connector leads for electrically connecting the wire elements to the remote indicator in order to maintain the respective resistance value relationship between the first and second wire elements. The indicator is calibrated to indicate the detected resistance imbalance in terms of a temperature differential between the first and second wall portions.

Girling, Peter M. (Allentown, PA)

1986-01-01T23:59:59.000Z

140

Detecting bioterrorism: Is chemistry enough?  

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

Detecting bioterrorism: Is chemistry enough? Detecting bioterrorism: Is chemistry enough? In an online webinar, Kristin Omberg will offer discussion on the possibilities and...

Note: This page contains sample records for the topic "detection un parameter" 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

Solar system fault detection  

DOE Patents [OSTI]

A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

Farrington, Robert B. (Wheatridge, CO); Pruett, Jr., James C. (Lakewood, CO)

1986-01-01T23:59:59.000Z

142

Composition for detecting uranyl  

DOE Patents [OSTI]

The present invention relates to an indicator composition for use in spectrophotometric detection of a substance in a solution, and a method for making the composition. Useful indicators are sensitive to the particular substance being measured, but are unaffected by the fluid and other chemical species that may be present in the fluid. Optical indicators are used to measure the uranium concentration of process solutions in facilities for extracting uranium from ores, production of nuclear fuels, and reprocessing of irradiated fuels. The composition comprises an organohalide covalently bonded to an indicator for the substance, in such a manner that the product is itself an indicator that provides increased spectral resolution for detecting the substance. The indicator is preferably arsenazo III and the organohalide is preferably cyanuric chloride. These form a composition that is ideally suited for detecting uranyl.

Baylor, L.C.; Stephens, S.M.

1994-01-01T23:59:59.000Z

143

Solar system fault detection  

DOE Patents [OSTI]

A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

Farrington, R.B.; Pruett, J.C. Jr.

1984-05-14T23:59:59.000Z

144

Calcul du SCR Planchet -Guibert -Juillard -1 -UN CADRE DE REFERENCE POUR UN MODELE INTERNE PARTIEL EN ASSURANCE  

E-Print Network [OSTI]

Calcul du SCR Planchet - Guibert - Juillard - 1 - UN CADRE DE REFERENCE POUR UN MODELE INTERNE référence (best estimate, marge pour risque et SCR) dans le cadre d'une approche mêlant calculs analytiques auteur, publié dans "Bulletin Français d'Actuariat 10, 20 (2010) pp. 5-34" #12;Calcul du SCR Planchet

Paris-Sud XI, Université de

145

THORIE MATHMATIQUE D'UN RFRIGRATEUR A EFFET PELTIER ET D'UN GNRATEUR THERMO-LECTRIQUE  

E-Print Network [OSTI]

97 TH?ORIE MATH?MATIQUE D'UN R?FRIG?RATEUR A EFFET PELTIER ET D'UN G?N?RATEUR THERMO-?LECTRIQUE par échangée directement avec le milieu que de celle mise en jeu par les effets Peltier, Fourier, Thomson et plusieurs autres, utiles pour le calcul des réfrigérateurs à effet Peltier et des générateurs

Paris-Sud XI, Université de

146

Relating to ion detection  

DOE Patents [OSTI]

The apparatus and method provide a technique for improving detection of alpha and/or beta emitting sources on items or in locations using indirect means. The emission forms generate ions in a medium surrounding the item or location and the medium is then moved to a detecting location where the ions are discharged to give a measure of the emission levels. To increase the level of ions generated and render the system particularly applicable for narrow pipes and other forms of conduits, the medium pressure is increased above atmospheric pressure. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM)

2001-01-01T23:59:59.000Z

147

Detection of neutrinos  

DOE Patents [OSTI]

A flux detection apparatus can include a radioactive sample having a decay rate capable of changing in response to interaction with a first particle or a field, and a detector associated with the radioactive sample. The detector is responsive to a second particle or radiation formed by decay of the radioactive sample. The rate of decay of the radioactive sample can be correlated to flux of the first particle or the field. Detection of the first particle or the field can provide an early warning for an impending solar event.

Fischbach, Ephraim; Jenkins, Jere

2014-02-04T23:59:59.000Z

148

Detection of solar events  

DOE Patents [OSTI]

A flux detection apparatus can include a radioactive sample having a decay rate capable of changing in response to interaction with a first particle or a field, and a detector associated with the radioactive sample. The detector is responsive to a second particle or radiation formed by decay of the radioactive sample. The rate of decay of the radioactive sample can be correlated to flux of the first particle or the field. Detection of the first particle or the field can provide an early warning for an impending solar event.

Fischbach, Ephraim; Jenkins, Jere

2013-08-27T23:59:59.000Z

149

Directional detection of dark matter streams  

Science Journals Connector (OSTI)

Directional detection of weakly interacting massive particles, in which the energies and directions of the recoiling nuclei are measured, currently presents the only prospect for probing the local velocity distribution of Galactic dark matter. We investigate the extent to which future directional detectors would be capable of probing dark matter substructure in the form of streams. We analyze the signal expected from a Sagittarius-like stream and also explore the full parameter space of stream speed, direction, dispersion and density. Using a combination of nonparametric directional statistics, a profile likelihood ratio test and Bayesian parameter inference we find that within acceptable exposure times [O(10)??kg?yr for cross sections just below the current exclusion limits] future directional detectors will be sensitive to a wide range of stream velocities and densities. We also examine and discuss the importance of the energy window of the detector.

Ciaran A.?J. OHare and Anne M. Green

2014-12-08T23:59:59.000Z

150

HFIR Technical Parameters | ORNL Neutron Sciences  

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

Reactor Technical Parameters Reactor Technical Parameters Overview HFIR Pool Layout HFIR pool layout. HFIR is a beryllium-reflected, light-water-cooled and -moderated, flux-trap type reactor that uses highly enriched uranium-235 as the fuel. The image on the right is a cutaway of the reactor which shows the pressure vessel, its location in the reactor pool, and some of the experiment facilities. The preliminary conceptual design of the reactor was based on the "flux trap" principle, in which the reactor core consists of four annular regions of fuel surrounding an unfueled moderating region or "island" (see cross section view). Such a configuration permits fast neutrons leaking from the fuel to be moderated in the island and thus produces a region of very high thermal-neutron flux at the center of the island. This reservoir of

151

Calibrated Hydrothermal Parameters, Barrow, Alaska, 2013  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

A model-observation-experiment process (ModEx) is used to generate three 1D models of characteristic micro-topographical land-formations, which are capable of simulating present active thaw layer (ALT) from current climate conditions. Each column was used in a coupled calibration to identify moss, peat and mineral soil hydrothermal properties to be used in up-scaled simulations. Observational soil temperature data from a tundra site located near Barrow, AK (Area C) is used to calibrate thermal properties of moss, peat, and sandy loam soil to be used in the multiphysics Advanced Terrestrial Simulator (ATS) models. Simulation results are a list of calibrated hydrothermal parameters for moss, peat, and mineral soil hydrothermal parameters.

Adam Atchley; Scott Painter; Dylan Harp; Ethan Coon; Cathy Wilson; Anna Liljedahl; Vladimir Romanovsky

152

Detecting solar chameleons through radiation pressure  

E-Print Network [OSTI]

Light scalar fields can drive the accelerated expansion of the universe. Hence, they are obvious dark energy candidates. To make such models compatible with tests of General Relativity in the solar system and "fifth force" searches on Earth, one needs to screen them. One possibility is the so-called "chameleon" mechanism, which renders an effective mass depending on the local matter density. If chameleon particles exist, they can be produced in the sun and detected on earth exploiting the equivalent of a radiation pressure. Since their effective mass scales with the local matter density, chameleons can be reflected by a dense medium if their effective mass becomes greater than their total energy. Thus, under appropriate conditions, a flux of solar chameleons may be sensed by detecting the total instantaneous momentum transferred to a suitable opto-mechanical force/pressure sensor. We calculate the solar chameleon spectrum and the reach in the chameleon parameter space of an experiment using the preliminary re...

Baum, S; Hoffmann, D H H; Karuza, M; Semertzidis, Y K; Upadhye, A; Zioutas, K

2014-01-01T23:59:59.000Z

153

Sedimentary parameters of upper Barataria Bay, Louisiana  

E-Print Network [OSTI]

upon oonditions of sedimentation is exerted by currents set in motion 'by oceanic tides. Tidal activity causes sediment to be introduced into the upper bay and controls its distribution. A modifying influence i. s exerted by the influx of fresh... Classification and Distribution of Sediment Types Anomalous Areas CONDITIONS OF SEDIMENTATION Bathymetry Signifioance of Parameter Distribution Patterns Marginal areas Central bay Marginal embayments . ~ Environments of Deposition . CONCLUSIONS...

Siegert, Rudolf B

2012-06-07T23:59:59.000Z

154

Two pairing parameters in superconducting grains  

Science Journals Connector (OSTI)

Unlike bulk superconductivity, where one energy scale, the energy gap, characterizes pairing correlations, we show that in small superconducting grains there exist two different such quantities. The first characterizes collective properties of the grain, such as the condensation energy, and the second single-particle properties. To describe these two energy scales, we define two corresponding pairing parameters, and show that although both reduce to the bulk gap for large grains, this occurs at different size scales.

M. Schechter; J. von Delft; Y. Imry; Y. Levinson

2003-02-27T23:59:59.000Z

155

Explosives Detection, Testing, Ballistics and Armor Development...  

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

Explosives Detection, Testing, Ballistics, and Armor Development Programs Locations: National Security Test Range, Trace Explosives Detection Facility, Bulk Explosives Detection...

156

Online parameter estimation applied to mixed conduction/radiation  

E-Print Network [OSTI]

) is the most widely used parameter estimation algorithm for nonlinear models. The unscented Kalman filter (UKF) is a new and more accurate technique for parameter estimation. These parameter estimation techniques have been evaluated with respect to data from...

Shah, Tejas Jagdish

2005-08-29T23:59:59.000Z

157

Edmund G. Brown Jr. LIFE HISTORY PARAMETERS OF  

E-Print Network [OSTI]

History Parameters of Common Marine Fish Subject to Entrainment. California Energy Commission, PIER · Renewable Energy Technologies · Transportation Life History Parameters of Common Southern California MEdmund G. Brown Jr. Governor LIFE HISTORY PARAMETERS OF COMMON SOUTHERN CALIFORNIA MARINE FISHES

158

Nitrogen dioxide detection  

DOE Patents [OSTI]

Method and apparatus for detecting the presence of gaseous nitrogen dioxide and determining the amount of gas which is present. Though polystyrene is normally an insulator, it becomes electrically conductive in the presence of nitrogen dioxide. Conductance or resistance of a polystyrene sensing element is related to the concentration of nitrogen dioxide at the sensing element.

Sinha, Dipen N. (Los Alamos, NM); Agnew, Stephen F. (Los Alamos, NM); Christensen, William H. (Buena Park, CA)

1993-01-01T23:59:59.000Z

159

Detecting Eve in communication with continuous-variable Einstein-Podolsky-Rosen correlations  

SciTech Connect (OSTI)

We study the validity of the entanglement parameter introduced in a recent publication by Guangqiang et al. [Phys. Rev. A 73, 012314 (2006)] for detecting Eve, the eavesdropper. We have found that Eve can be detected using this parameter only if Alice establishes a quantum correlation between the Einstein-Podolsky-Rosen (EPR) pair. This quantum correlation is related to the possibility of an apparent violation of the Heisenberg inequality for the quadrature components of the EPR pair.

Messikh, A. [Department of ICT, UIA, Jalan Gombak, 53100 Kuala Lumpur (Malaysia)

2007-03-15T23:59:59.000Z

160

Critical Performance and Durability Parameters of an Integrated...  

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

and Durability Parameters of an Integrated Aftertreatment System used to Meet Tier II Emission Standards Critical Performance and Durability Parameters of an Integrated...

Note: This page contains sample records for the topic "detection un parameter" 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

Single-parameter pumping in graphene  

Science Journals Connector (OSTI)

We propose a quantum pump mechanism based on the particular properties of graphene, namely chirality and bipolarity. The underlying physics is the excitation of evanescent modes entering a potential barrier from one lead, while those from the other lead do not reach the driving region. This induces a large nonequilibrium current with electrons stemming from a broad range of energies, in contrast to the narrow resonances that govern the corresponding effect in semiconductor heterostructures. Moreover, the pump mechanism in graphene turns out to be robust, with a simple parameter dependence, which is beneficial for applications. Numerical results from a Floquet scattering formalism are complemented with analytical solutions for small to moderate driving.

Pablo San-Jose; Elsa Prada; Sigmund Kohler; Henning Schomerus

2011-10-11T23:59:59.000Z

162

A variable parameter thermionic energy converter  

E-Print Network [OSTI]

A VARIABLE PARAMETER THERMIONIC ENERGY CONVERTER A Thesis By Bobby Joe Bragg Submitted to the Graduate School of the Texas A 8c M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August, 1967 Major... LIST OF FIGURES FIGURE 1. SIMPLE SCHEMATIC OF A THERMIONIC CONVERTER PAGE 2. POWER VS SPACING WITH A MINIMUM POWER POINT 3. POWER VS SPACING WITH NO MINIMUM POWER POINT 4. CONVERTER MOTIVE DIAGRAM~ O'E = 5. CONVERTER MOTIVE DIAGRAM~ 6. CONVERTER...

Bragg, Bobby Joe

1967-01-01T23:59:59.000Z

163

Solar neutrino detection  

SciTech Connect (OSTI)

More than 40 years ago, neutrinos where conceived as a way to test the validity of the solar models which tell us that stars are powered by nuclear fusion reactions. The first measurement of the neutrino flux, in 1968 in the Homestake mine in South Dakota, detected only one third of the expected value, originating what has been known as the Solar Neutrino Problem. Different experiments were built in order to understand the origin of this discrepancy. Now we know that neutrinos undergo oscillation phenomenon changing their nature traveling from the core of the Sun to our detectors. In the work the 40 year long saga of the neutrino detection is presented; from the first proposals to test the solar models to last real time measurements of the low energy part of the neutrino spectrum.

Miramonti, Lino [Physics department of Milano University and INFN (Italy)

2009-04-30T23:59:59.000Z

164

Idaho Explosives Detection System  

SciTech Connect (OSTI)

The Idaho Explosives Detection System was developed at the Idaho National Laboratory (INL) to respond to threats imposed by delivery trucks potentially carrying explosives into military bases. A full-scale prototype system has been built and is currently undergoing testing. The system consists of two racks, one on each side of a subject vehicle. Each rack includes a neutron generator and an array of NaI detectors. The two neutron generators are pulsed and synchronized. A laptop computer controls the entire system. The control software is easily operable by minimally trained staff. The system was developed to detect explosives in a medium size truck within a 5-min measurement time. System performance was successfully demonstrated with explosives at the INL in June 2004 and at Andrews Air Force Base in July 2004.

Edward L. Reber; Larry G. Blackwood; Andrew J. Edwards; J. Keith Jewell; Kenneth W. Rohde; Edward H. Seabury; Jeffery B. Klinger

2005-12-01T23:59:59.000Z

165

Solar neutrino detection  

E-Print Network [OSTI]

More than 40 years ago, neutrinos where conceived as a way to test the validity of the solar models which tell us that stars are powered by nuclear fusion reactions. The first measurement of the neutrino flux, in 1968 in the Homestake mine in South Dakota, detected only one third of the expected value, originating what has been known as the Solar Neutrino Problem. Different experiments were built in order to understand the origin of this discrepancy. Now we know that neutrinos undergo oscillation phenomenon changing their nature traveling from the core of the Sun to our detectors. In the work the 40 year long saga of the neutrino detection is presented; from the first proposals to test the solar models to last real time measurements of the low energy part of the neutrino spectrum.

Lino Miramonti

2009-01-22T23:59:59.000Z

166

Cell Phone Detection Techniques  

SciTech Connect (OSTI)

A team composed of Rick Pratt, Dave Puczyki, Kyle Bunch, Ryan Slaugh, Morris Good, and Doug McMakin teamed together to attempt to exploit cellular telephone features and detect if a person was carrying a cellular telephone into a Limited Area. The cell phones electromagnetic properties were measured, analyzed, and tested in over 10 different ways to determine if an exploitable signature exists. The method that appears to have the most potential for success without adding an external tag is to measure the RF spectrum, not in the cell phone band, but between 240 and 400MHz. Figures 1- 7 show the detected signal levels from cell phones from three different manufacturers.

Pratt, Richard M.; Bunch, Kyle J.; Puzycki, David J.; Slaugh, Ryan W.; Good, Morris S.; McMakin, Douglas L.

2007-10-01T23:59:59.000Z

167

Protein detection system  

DOE Patents [OSTI]

The present embodiment describes a miniature, microfluidic, absorption-based sensor to detect proteins at sensitivities comparable to LIF but without the need for tagging. This instrument utilizes fiber-based evanescent-field cavity-ringdown spectroscopy, in combination with faceted prism microchannels. The combination of these techniques will increase the effective absorption path length by a factor of 10.sup.3 to 10.sup.4 (to .about.1-m), thereby providing unprecedented sensitivity using direct absorption. The coupling of high-sensitivity absorption with high-performance microfluidic separation will enable real-time sensing of biological agents in aqueous samples (including aerosol collector fluids) and will provide a general method with spectral fingerprint capability for detecting specific bio-agents.

Fruetel, Julie A. (Livermore, CA); Fiechtner, Gregory J. (Bethesda, MD); Kliner, Dahv A. V. (San Ramon, CA); McIlroy, Andrew (Livermore, CA)

2009-05-05T23:59:59.000Z

168

Robust parameter estimation for compact binaries with ground-based gravitational-wave observations using LALInference  

E-Print Network [OSTI]

The Advanced LIGO and Advanced Virgo gravitational wave (GW) detectors will begin operation in the coming years, with compact binary coalescence events a likely source for the first detections. The gravitational waveforms emitted directly encode information about the sources, including the masses and spins of the compact objects. Recovering the physical parameters of the sources from the GW observations is a key analysis task. This work describes the LALInference software library for Bayesian parameter estimation of compact binary coalescence (CBC) signals, which builds on several previous methods to provide a well-tested toolkit which has already been used for several studies. We are able to show using three independent sampling algorithms that our implementation consistently converges on the same results, giving confidence in the parameter estimates thus obtained. We demonstrate this with a detailed comparison on three compact binary systems: a binary neutron star, a neutron star-black hole binary and a bin...

Veitch, John; Farr, Benjamin; Farr, Will M; Graff, Philip; Vitale, Salvatore; Aylott, Ben; Blackburn, Kent; Christensen, Nelson; Coughlin, Michael; Del Pozzo, Walter; Feroz, Farhan; Gair, Jonathan; Haster, Carl-Johan; Kalogera, Vicky; Littenberg, Tyson; Mandel, Ilya; O'Shaughnessy, Richard; Pitkin, Matthew; Rodriguez, Carl; Rver, Christian; Sidery, Trevor; Smith, Rory; Van Der Sluys, Marc; Vecchio, Alberto; Vousden, Will; Wade, Leslie

2014-01-01T23:59:59.000Z

169

Testing scalar-tensor theories and PPN parameters in Earth orbit  

E-Print Network [OSTI]

We compute the PPN parameters $\\gamma$ and $\\beta$ for general scalar-tensor theories in the Einstein frame, which we compare to the existing PPN formulation in the Jordan frame for alternative theories of gravity. This computation is important for scalar-tensor theories that are expressed in the Einstein frame, such as chameleon and symmetron theories, which can incorporate hiding mechanisms that predict environment-dependent PPN parameters. We introduce a general formalism for scalar-tensor theories and constrain it using the limit on $\\gamma$ given by the Cassini experiment. In particular we discuss massive Brans-Dicke scalar fields for extended sources. Next, using a recently proposed Earth satellite experiment, in which atomic clocks are used for spacecraft tracking, we compute the observable perturbations in the redshift induced by PPN parameters deviating from their general relativistic values. Our estimates suggest that $|\\gamma - 1| \\sim |\\beta -1| \\sim 10^{-6}$ may be detectable by a satellite that ...

Schrer, Andreas; Bondarescu, Ruxandra; Jetzer, Philippe; Lundgren, Andrew

2014-01-01T23:59:59.000Z

170

Aspects of leak detection  

SciTech Connect (OSTI)

A requirement of a Leak before Break safety case is that the leakage from the through wall crack be detected prior to any growth leading to unacceptable failure. This paper sets out to review some recent developments in this field. It does not set out to be a comprehensive guide to all of the methods available. The discussion concentrates on acoustic emission and how the techniques can be qualified and deployed on operational plant.

Chivers, T.C. [Berkeley Technology Centre, Glos (United Kingdom)

1997-04-01T23:59:59.000Z

171

Detection of structural degradation  

SciTech Connect (OSTI)

A time domain method developed for determining dynamic system characteristics is applied to structural monitoring and/or flaw detection. The potential usefulness for monitoring is evaluated based on several criteria, which include sensitivity to structural changes, location of flaws, and dependence upon excitation signals. The strengths and weaknesses of the methods are discussed. Also, structural monitoring using a signal's singular values is presented and evaluated. 2 refs., 4 figs., 2 tabs.

Endebrock, E.G.

1991-01-01T23:59:59.000Z

172

Method for detecting biomolecules  

DOE Patents [OSTI]

A method for detecting and measuring the concentration of biomolecules in solution, utilizing a conducting electrode in contact with a solution containing target biomolecules, with a film with controllable pore size distribution characteristics applied to at least one surface of the conducting electrode. The film is functionalized with probe molecules that chemically interact with the target biomolecules at the film surface, blocking indicator molecules present in solution from diffusing from the solution to the electrode, thereby changing the electrochemical response of the electrode

Huo, Qisheng (Albuquerque, NM); Liu, Jun (Albuquerque, NM)

2008-08-12T23:59:59.000Z

173

Nucleic acid detection methods  

DOE Patents [OSTI]

The invention relates to methods for rapidly determining the sequence and/or length a target sequence. The target sequence may be a series of known or unknown repeat sequences which are hybridized to an array of probes. The hybridized array is digested with a single-strand nuclease and free 3{prime}-hydroxyl groups extended with a nucleic acid polymerase. Nuclease cleaved heteroduplexes can be easily distinguish from nuclease uncleaved heteroduplexes by differential labeling. Probes and target can be differentially labeled with detectable labels. Matched target can be detected by cleaving resulting loops from the hybridized target and creating free 3-hydroxyl groups. These groups are recognized and extended by polymerases added into the reaction system which also adds or releases one label into solution. Analysis of the resulting products using either solid phase or solution. These methods can be used to detect characteristic nucleic acid sequences, to determine target sequence and to screen for genetic defects and disorders. Assays can be conducted on solid surfaces allowing for multiple reactions to be conducted in parallel and, if desired, automated. 18 figs.

Smith, C.L.; Yaar, R.; Szafranski, P.; Cantor, C.R.

1998-05-19T23:59:59.000Z

174

Photon Source Parameters | Stanford Synchrotron Radiation Lightsource  

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

Photon Source Parameters Photon Source Parameters SSRL Beam Line Map | Beam Lines by Techniques | Beam Lines by Number Beam Energy 3 GeV Injection Energy 3 GeV Current 300-500 mA Fill Pattern 270 bunches distributed in six groups of 45 with 17 bunch gaps in between Circumferenc 234.137 Radio Frequency 476.315 MHz Bunch Spacing 2.1 n Horizontal Emittance 10 nm*rad Vertical Emittance 14 pm*rad Critical Energy 7.6 keV Energy Spread 0.097 Lifetime 12 hours @ 350 mA e- size (x,y) Dipole: 140, 14 µm rms Standard ID: 310, 8 µm rms Chicane ID: 300, 5 µm rms e- divergence (x,y) Dipole: 180, 2.9 µrad rms Standard ID: 33, 1.7 µrad rms Chicane ID: 34, 2.9 µrad rms Bunch Length 20 psec rms (6.0 mm rms) Straight sections for IDs (available ID length) 9 x 2.3 m 4 x 3.7 m 2 x 1.5 m (Chicane)

175

SUR UN TH'EOR`EME DE DAY, UN TH'EOR`EME DE MAZUR-ORLICZ, ET UNE G'EN'ERALISATION DE QUELQUES  

E-Print Network [OSTI]

SUR UN TH'EOR`EME DE DAY, UN TH'EOR`EME DE MAZUR-ORLICZ, ET UNE G'EN'ERALISATION DE QUELQUES TH'EOR`EMES DE SILVERMAN Wojciech Chojnacki moyennable (`a gauche) sont analogues. Un th'eor`eme fondamental de Day est que tout semi-groupe ab

Chojnacki, Wojtek

176

Faster parameter estimation using risk-sensitive lters Sanjeewa Athuraliyay  

E-Print Network [OSTI]

Faster parameter estimation using risk-sensitive lters Sanjeewa Athuraliyay , Jason Fordz and John propose a risk-sensitive approach to parameter estimation for hidden Markov models HMMs. The parameter the improvement in estimation simu- lation studies are presented that compare parameter estimation based on risk-sensitive

Moore, John Barratt

177

Remote detection of fissile material : Cherenkov counters for gamma detection  

E-Print Network [OSTI]

The need for large-size detectors for long-range active interrogation (Al) detection has generated interest in water-based detector technologies. AI is done using external radiation sources to induce fission and to detect, ...

Erickson, Anna S

2011-01-01T23:59:59.000Z

178

Revolution in nuclear detection affairs  

SciTech Connect (OSTI)

The detection of nuclear or radioactive materials for homeland or national security purposes is inherently difficult. This is one reason detection efforts must be seen as just one part of an overall nuclear defense strategy which includes, inter alia, material security, detection, interdiction, consequence management and recovery. Nevertheless, one could argue that there has been a revolution in detection affairs in the past several decades as the innovative application of new technology has changed the character and conduct of detection operations. This revolution will likely be most effectively reinforced in the coming decades with the networking of detectors and innovative application of anomaly detection algorithms.

Stern, Warren M. [Nonproliferation and National Security Department, Brookhaven National Laboratory, Upton, New York (United States)

2014-05-09T23:59:59.000Z

179

Average deployments versus missile and defender parameters  

SciTech Connect (OSTI)

This report evaluates the average number of reentry vehicles (RVs) that could be deployed successfully as a function of missile burn time, RV deployment times, and the number of space-based interceptors (SBIs) in defensive constellations. Leakage estimates of boost-phase kinetic-energy defenses as functions of launch parameters and defensive constellation size agree with integral predictions of near-exact calculations for constellation sizing. The calculations discussed here test more detailed aspects of the interaction. They indicate that SBIs can efficiently remove about 50% of the RVs from a heavy missile attack. The next 30% can removed with two-fold less effectiveness. The next 10% could double constellation sizes. 5 refs., 7 figs.

Canavan, G.H.

1991-03-01T23:59:59.000Z

180

New approaches to estimation of magnetotelluric parameters  

SciTech Connect (OSTI)

Fully efficient robust data processing procedures were developed and tested for single station and remote reference magnetotelluric (Mr) data. Substantial progress was made on development, testing and comparison of optimal procedures for single station data. A principal finding of this phase of the research was that the simplest robust procedures can be more heavily biased by noise in the (input) magnetic fields, than standard least squares estimates. To deal with this difficulty we developed a robust processing scheme which combined the regression M-estimate with coherence presorting. This hybrid approach greatly improves impedance estimates, particularly in the low signal-to-noise conditions often encountered in the dead band'' (0.1--0.0 hz). The methods, and the results of comparisons of various single station estimators are described in detail. Progress was made on developing methods for estimating static distortion parameters, and for testing hypotheses about the underlying dimensionality of the geological section.

Egbert, G.D.

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Collision detection and proximity queries  

Science Journals Connector (OSTI)

This course will primarily cover widely accepted and proved methodologies in collision detection. In addition more advanced or recent topics such as continuous collision detection, ADFs, and using graphics hardware will be introduced. When appropriate ...

Sunil Hadap; Dave Eberle; Pascal Volino; Ming C. Lin; Stephane Redon; Christer Ericson

2004-08-01T23:59:59.000Z

182

UN Security Council: Iran violating ban on nuclear weapons programs  

E-Print Network [OSTI]

UN Security Council: Iran violating ban on nuclear weapons programs 7 September 2011 Denouncement weaponization of its nuclear program. The United States, Germany, France and Britain joined forces in exposing of its nuclear activities.' Rice said the installation of a uranium enrichment facility and heavy

183

Transport atomique dans un r' eseau optique asym' etrique  

E-Print Network [OSTI]

'eines motrices comme des particules browniennes soumises `a un potentiel p'eriodique mais asym'etrique dans une asym'etrique. Moteur Fibre Charge v f ext ATP ADP +P Fig. V.1 ­ Prot'eine motrice se d'epla¸cant `a une

184

Rapport bibliographique : Localisation d'un robot mobile  

E-Print Network [OSTI]

;érentiel. Ce robot est équipé de deux roues motrices et de quatre roues assurant la stabilité. Sur les deux roues motrices est #28;xé un codeur (incrémental ou absolu) permettant de mesurer leurs rotations. Ainsi

Vialle, Stéphane

185

Economic Impact Report BInghamton UnIvERsIty  

E-Print Network [OSTI]

Economic Impact Report 2007 #12;BInghamton UnIvERsIty 8:1 return on investment The term "return will be returned to the state economy and $6 to the local economy -- delivering an economic impact of $8.65 billion as an engine of economic growth that improves the financial health of our region and state. EconomIc Impact

Suzuki, Masatsugu

186

Les Roms comme minorit ethnique ? Un questionnement roumain.  

E-Print Network [OSTI]

1 Les Roms comme « minorité ethnique » ? Un questionnement roumain. Martin Olivera Article publié dans Roms et Gens du Voyage, nouvelles perspectives de recherche, Etudes tsiganes, n°39-40, 3ème acquis : les « Roms et Voyageurs » (Roma and Travellers) forment une minorité européenne, comptant entre

Paris-Sud XI, Université de

187

Oil, Environment, and Influence Proposed in 2007 to the UN  

E-Print Network [OSTI]

Oil, Environment, and Influence Levi Byers 4/14/11 #12; Proposed in 2007 to the UN and agreed upon in August 2010 Ecuador will indefinitely forgo 900 million barrels of oil in the ITT-Block of the Amazon) by not exploiting the oil in the Yasuni reserve, avoiding deforestation, promoting reforestation and reducing

New Hampshire, University of

188

Nucleic acid detection compositions  

DOE Patents [OSTI]

The present invention relates to means for the detection and characterization of nucleic acid sequences, as well as variations in nucleic acid sequences. The present invention also relates to methods for forming a nucleic acid cleavage structure on a target sequence and cleaving the nucleic acid cleavage structure in a site-specific manner. The structure-specific nuclease activity of a variety of enzymes is used to cleave the target-dependent cleavage structure, thereby indicating the presence of specific nucleic acid sequences or specific variations thereof.

Prudent, James R. (Madison, WI); Hall, Jeff G. (Madison, WI); Lyamichev, Victor I. (Madison, WI); Brow, Mary Ann (Madison, WI); Dahlberg, James L. (Madison, WI)

2008-08-05T23:59:59.000Z

189

Opaque cloud detection  

DOE Patents [OSTI]

A method of detecting clouds in a digital image comprising, for an area of the digital image, determining a reflectance value in at least three discrete electromagnetic spectrum bands, computing a first ratio of one reflectance value minus another reflectance value and the same two values added together, computing a second ratio of one reflectance value and another reflectance value, choosing one of the reflectance values, and concluding that an opaque cloud exists in the area if the results of each of the two computing steps and the choosing step fall within three corresponding predetermined ranges.

Roskovensky, John K. (Albuquerque, NM)

2009-01-20T23:59:59.000Z

190

Detecting alien life forms  

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

Detecting alien life forms Detecting alien life forms Name: Brian S Foster Status: N/A Age: N/A Location: N/A Country: N/A Date: N/A Question: What would you do to find out if there is any life form on other planets? Replies: If you mean intelligent life, probably the best way would be to listen for radio messages, since you could do this from very far away. Earth emits as much radio energy as a small star --- very noticeable. If you mean just any kind of life it gets harder and you would have to send a robot or human in a spacecraft to visit. You could then look for the absorption of reflected light by oxygen molecules in the atmosphere. Oxygen is such a reactive molecule that it can only stay in the atmosphere if it is continually replenished by something, such as plants photosynthesizing. We cannot of course know that other life will build itself as does life on Earth, out of carbon-containing molecules which are formed by cracking apart carbon dioxide molecules with light energy (releasing oxygen). So the only sure way would probably be to land on the planet and look around. And even then you might well miss something

191

MULTIMOMENT RADIO TRANSIENT DETECTION  

SciTech Connect (OSTI)

We present a multimoment technique for signal classification and apply it to the detection of fast radio transients in incoherently dedispersed data. Specifically, we define a spectral modulation index in terms of the fractional variation in intensity across a spectrum. A signal whose intensity is distributed evenly across the entire band has a lower modulation index than a spectrum whose intensity is localized in a single channel. We are interested in broadband pulses and use the modulation index to excise narrowband radio frequency interference by applying a modulation index threshold above which candidate events are removed. The technique is tested both with simulations and using data from known sources of radio pulses (RRAT J1928+15 and giant pulses from the Crab pulsar). The method is generalized to coherent dedispersion, image cubes, and astrophysical narrowband signals that are steady in time. We suggest that the modulation index, along with other statistics using higher order moments, should be incorporated into signal detection pipelines to characterize and classify signals.

Spitler, L. G.; Cordes, J. M.; Chatterjee, S. [Astronomy Department and NAIC, Cornell University, Ithaca, NY 14853 (United States); Stone, J., E-mail: lspitler@astro.cornell.edu [Department of Physics and Astronomy, Barnard College, New York, NY 10027 (United States)

2012-04-01T23:59:59.000Z

192

Method to Filter ECGs and Evaluate Clinical Parameter Distortion using Realistic ECG Model Parameter Fitting  

E-Print Network [OSTI]

Method to Filter ECGs and Evaluate Clinical Parameter Distortion using Realistic ECG Model Abstract By fitting a previously published nonlinear model for generating realistic ECG to waveforms, the authors demonstrate that significant points (P, Q, R, S, and T) on the ECG can be determined

McSharry, Patrick E.

193

Subsidiary minimum principles for scattering parameters  

Science Journals Connector (OSTI)

We denote as a "primary minimum principle" one in which a quantity B of physical interest is represented as the minimum value with respect to variations in a trial function ?t of a functional F(?t); F then provides a variational upper bound on B. (The Rayleigh-Ritz principle for the ground-state energy of a system is a familiar example.) If F is quadratic in ?t, the variational property of F enables one to determine the linear parameters relatively easily, but the minimum property is required if the nonlinear parameters are to be determined in a way which allows for systematic improvement of ?t. We show here that for a wide class of problems for which primary minimum principles do not exist, useful and rigorous secondary or "subsidiary minimum principles" are available. That is, we construct a functional F?(?t) whose minimum value is reached for ?t equal to some function ? of dynamical interest. (The Rayleigh-Ritz method provides a subsidiary minimum principle for the approximate determination of the ground-state wave function of a system.) If B=B(?), then a study of F?(?t) provides a powerful tool for the estimation of ? and therefore B, though B(?t) is not normally a variational bound on B(?). Subsidiary minimum principles have recently been obtained for the approximation of the auxiliary functions that appear in the variational principle for the matrix element (?n, W?m), where ?n and ?m are bound-state wave functions and W is an arbitrary operator. Here we extend the method to the estimation of matrix elements of the Green's function g(?) of a bound system with ? below the continuum threshold energy. The response of the system to an external perturbation can be represented by matrix elements of this type. While no new results on the bound-state problem are obtained, our formulation is a convenient starting point for the further extension of the method to continuum problems. The new result obtained here is the derivation of a subsidiary minimum principle for the problem of scattering of a projectile by a target whose bound-state wave function is only imprecisely known. The subsidiary minimum principle allows for systematic improvement of the closed-channel component of the trial scattering wave function that appears in a Kohn-type variational calculation of the scattering amplitude.

Leonard Rosenberg and Larry Spruch

1974-12-01T23:59:59.000Z

194

QGESS: CO2 Impurity Design Parameters  

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

Q Q U U A A L L I I T T Y Y G G U U I I D D E E L L I I N N E E S S F F O O R R E E N N E E R R G G Y Y S S Y Y S S T T E E M M S S T T U U D D I I E E S S C C O O 2 2 I I m m p p u u r r i i t t y y D D e e s s i i g g n n P P a a r r a a m m e e t t e e r r s s DOE/NETL-2010/???? DOE/NETL-341/011212 August 2013 CO 2 Impurity Design Parameters Quality Guidelines for Energy System Studies Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.

195

FUNDAMENTAL PARAMETERS AND CHEMICAL COMPOSITION OF ARCTURUS  

SciTech Connect (OSTI)

We derive a self-consistent set of atmospheric parameters and abundances of 17 elements for the red giant star Arcturus: T{sub eff} = 4286 {+-} 30 K, log g = 1.66 {+-} 0.05, and [Fe/H] = -0.52 {+-} 0.04. The effective temperature was determined using model atmosphere fits to the observed spectral energy distribution from the blue to the mid-infrared (0.44 to 10 {mu}m). The surface gravity was calculated using the trigonometric parallax of the star and stellar evolution models. A differential abundance analysis relative to the solar spectrum allowed us to derive iron abundances from equivalent width measurements of 37 Fe I and 9 Fe II lines, unblended in the spectra of both Arcturus and the Sun; the [Fe/H] value adopted is derived from Fe I lines. We also determine the mass, radius, and age of Arcturus: M = 1.08 {+-} 0.06 M{sub Sun }, R = 25.4 {+-} 0.2 R{sub Sun }, and {tau} = 7.1{sup +1.5}{sub -1.2} Gyr. Finally, abundances of the following elements are measured from an equivalent width analysis of atomic features: C, O, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, and Zn. We find the chemical composition of Arcturus typical of that of a local thick-disk star, consistent with its kinematics.

Ramirez, I. [Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Allende Prieto, C., E-mail: ivan@obs.carnegiescience.edu, E-mail: callende@iac.es [Instituto de Astrofisica de Canarias, 38205 La Laguna, Tenerife (Spain)

2011-12-20T23:59:59.000Z

196

Arc fault detection system  

DOE Patents [OSTI]

An arc fault detection system for use on ungrounded or high-resistance-grounded power distribution systems is provided which can be retrofitted outside electrical switchboard circuits having limited space constraints. The system includes a differential current relay that senses a current differential between current flowing from secondary windings located in a current transformer coupled to a power supply side of a switchboard, and a total current induced in secondary windings coupled to a load side of the switchboard. When such a current differential is experienced, a current travels through a operating coil of the differential current relay, which in turn opens an upstream circuit breaker located between the switchboard and a power supply to remove the supply of power to the switchboard.

Jha, Kamal N. (Bethel Park, PA)

1999-01-01T23:59:59.000Z

197

Numerical investigations of plasma parameters in the COMPASS tokamak  

Science Journals Connector (OSTI)

A numerical investigation of plasma parameters in a diverter configuration of COMPASS tokamak is presented. The plasma parameters in the ... regimes in the boundary layer of the COMPASS tokamak is discussed.

E. Havlickova; R. Zagorski; R. Panek

2008-09-01T23:59:59.000Z

198

The admissible parameter space for exponential smoothing models  

Science Journals Connector (OSTI)

We discuss the admissible parameter space for some state space models, including the models that underly exponential smoothing methods. We find that the usual parameter restrictions (requiring all smoothing param...

Rob J. Hyndman; Muhammad Akram

2008-06-01T23:59:59.000Z

199

A two-parameter lifetime distribution with decreasing failure rate  

Science Journals Connector (OSTI)

In this paper, a new two-parameter lifetime distribution with decreasing failure rate is introduced. Various properties of the proposed distribution are discussed. The estimation of the parameters attained by the EM algorithm and their asymptotic variances ...

Rasool Tahmasbi; Sadegh Rezaei

2008-04-01T23:59:59.000Z

200

SOW and Key Performance Parameters (KPP) Handbook Final Version...  

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

SOW and Key Performance Parameters (KPP) Handbook Final Version 9-30-2014 SOW and Key Performance Parameters (KPP) Handbook Final Version 9-30-2014 This handbook provides suggested...

Note: This page contains sample records for the topic "detection un parameter" 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

General Concepts and Global Parameters (EOD, COD, Ox)  

Science Journals Connector (OSTI)

In this work, the parameters Electrochemical Oxidation Index (EOI) and Electrochemical Oxygen Demand (EOD), involved in the electrochemical treatment of...16]. From these parameters, both the degree of oxidation...

Christos Comninellis; Agnieszka Kapa?ka

2014-09-01T23:59:59.000Z

202

Advanced islanding detection utilized in distribution systems with DFIG  

Science Journals Connector (OSTI)

Abstract The penetration of distributed generation (DG) in electrical power systems is rapidly increasing these days and more attention is drawn to maintain a healthy distribution system. Islanding operation of \\{DGs\\} is one of the biggest challenges to the distribution system stability. Fast and accurate islanding detection can avoid the possibility of damages to the \\{DGs\\} when they are un-intentionally reconnected to the grid and also provide useful information to the protection and automation design of the stand alone operated system. Rate of change of frequency (ROCOF) method is one of the most commonly employed anti-islanding protection techniques, it offers fast detection and easy implementation. However, it is often easily affected by the system disturbance and might not able to detect the islanding situation if the power imbalance between the DG and the load is small. This paper investigates an inter-lock method which can improve the performance of rate of change of frequency (ROCOF) by applying system impedance estimation. It was found that this new method can help in verifying the ROCOF relay islanding detection and avoiding false operations of ROCOF in a grid connected distribution system which has large load variations. The proposed method was verified using the experimental testing results derived from both an experimental testing model which includes an 8kW Double Feed Induction Generator (DFIG) and a 9MW DFIG simulation system.

Ke Jia; Tianshu Bi; Bohan Liu; David Thomas; Andrew Goodman

2014-01-01T23:59:59.000Z

203

The Energy Detective | Open Energy Information  

Open Energy Info (EERE)

Detective Jump to: navigation, search Name: The Energy Detective Place: Charleston, SC Website: http:www.theenergydetective. References: The Energy Detective1 Information About...

204

Mathematical modeling for the performance and emission parameters of dual fuel diesel engine using hydrogen as secondary fuel  

Science Journals Connector (OSTI)

Abstract In this work, mathematical models were developed to correlate the brake thermal efficiency, un-burnt hydrocarbons, carbon monoxides and oxides of nitrogen by varying engine parameters like Load and Gaseous (H2) fuel substitution. The developed models can be used to predict the important performance and emission parameters for diesel-hydrogen operation in various combinations at different loads within the experimental domain. Response surface methodology (RSM) has been applied for developing the models using the techniques of design of experiments and multi linear regression analysis. General factorial design was used to plan the experiments. Second order response surface models were found to be the most suitable in the present work. Analysis of variance (ANOVA) of the experimental results at 95% confidence level revealed that the developed models are significant. Comparison of experimental output with those predicted by the developed models showed close proximity having high correlation coefficients R2 for the various response variables.

A.E. Dhole; R.B. Yarasu; D.B. Lata; S.S. Baraskar

2014-01-01T23:59:59.000Z

205

Learning Optimal Parameters in Decision-Theoretic Rough Sets  

E-Print Network [OSTI]

Learning Optimal Parameters in Decision-Theoretic Rough Sets Joseph P. Herbert JingTao Yao]@cs.uregina.ca Abstract. A game-theoretic approach for learning optimal parameter values for probabilistic rough set. The decision-theoretic rough set model acquires initial values for these parameters through a combination

Yao, JingTao

206

Commande des liaisons HVDC dans un contexte reseau  

E-Print Network [OSTI]

Commande des liaisons HVDC dans un contexte r´eseau Leyla Arioua , Bogdan Marinescu , Eric´esum´e : Maintes solutions ont ´et´e propos´ees afin de contr^oler les liaisons `a courant continu (HVDC Matlab ainsi qu'Eurostag pour des syst`emes de grande dimension. Mots-cl´es: HVDC, stabilit´e transitoire

Paris-Sud XI, Université de

207

Consistencia de un estimador no parametrico, recursivo, de la regresion bajo condiciones generales  

Science Journals Connector (OSTI)

Se define un estimador no paramtrico, recursivo, de la funcin de regresinr(x)=E(Y/X=x), que se calcula a partir de un conjunto den observaciones {(X 1,Y i ...

Juan Manuel; Vilar Fernndez

1991-09-01T23:59:59.000Z

208

Etude de la distillation ractive dans une colonne avec un bac intermdiaire avec des ractions conscutives.  

E-Print Network [OSTI]

??La distillation ractive est lun des procds chimiques intensifis les plus reconnus, qui intgre la sparation et la raction au sein dun mme appareil. Les (more)

Steger Lukacs, Timea

2009-01-01T23:59:59.000Z

209

COMMUNICATION N099 G.R.H. ET VISION STRATEGIQUE : UN ECLAIRAGE CROISE  

E-Print Network [OSTI]

STRATEGIQUE : UN ECLAIRAGE CROISE INTRODUCTION Depuis presque une décennie les publications insistant sur leCOMMUNICATION N°099 « G.R.H. ET VISION STRATEGIQUE : UN ECLAIRAGE CROISE » NICOLAS EDERL? SERGE

Paris-Sud XI, Université de

210

Detecting individual gravity modes in the Sun  

E-Print Network [OSTI]

Many questions are still open regarding the structure and the dynamics of the solar core. By constraining more this region in the solar evolution models, we can reduce the incertitudes on some physical processes and on momentum transport mechanisms. A first big step was made with the detection of the signature of the dipole-gravity modes in the Sun, giving a hint of a faster rotation rate inside the core. A deeper analysis of the GOLF/SoHO data unveils the presence of a pattern of peaks that could be interpreted as dipole gravity modes. In that case, those modes can be characterized, thus bringing better constraints on the rotation of the core as well as some structural parameters such as the density at these very deep layers of the Sun interior.

Garcia, R A; Eff-Darwich, A; Garrido, R; Jimenez, A; Mathis, S; Moya, A; Palle, P L; Regulo, C; Salabert, D; Suarez, J C; Turck-Chieze, S

2009-01-01T23:59:59.000Z

211

Causality detection and turbulence in fusion plasmas  

E-Print Network [OSTI]

This work explores the potential of an information-theoretical causality detection method for unraveling the relation between fluctuating variables in complex nonlinear systems. The method is tested on some simple though nonlinear models, and guidelines for the choice of analysis parameters are established. Then, measurements from magnetically confined fusion plasmas are analyzed. The selected data bear relevance to the all-important spontaneous confinement transitions often observed in fusion plasmas, fundamental for the design of an economically attractive fusion reactor. It is shown how the present method is capable of clarifying the interaction between fluctuating quantities such as the turbulence amplitude, turbulent flux, and Zonal Flow amplitude, and uncovers several interactions that were missed by traditional methods.

van Milligen, B Ph; Ramisch, M; Estrada, T; Hidalgo, C; Alonso, A

2013-01-01T23:59:59.000Z

212

INFLUENCE D'UN CHAMP MAGNTIQUE SUR LE RAYONNEMENT DES CORPS RADIO-ACTIFS;  

E-Print Network [OSTI]

- , nure de baryum, ont conclu de leurs expériences que, dans un plan perpendiculaire au champ, les rayons

Paris-Sud XI, Université de

213

Cable Damage Detection System and Algorithms Using Time Domain Reflectometry  

SciTech Connect (OSTI)

This report describes the hardware system and the set of algorithms we have developed for detecting damage in cables for the Advanced Development and Process Technologies (ADAPT) Program. This program is part of the W80 Life Extension Program (LEP). The system could be generalized for application to other systems in the future. Critical cables can undergo various types of damage (e.g. short circuits, open circuits, punctures, compression) that manifest as changes in the dielectric/impedance properties of the cables. For our specific problem, only one end of the cable is accessible, and no exemplars of actual damage are available. This work addresses the detection of dielectric/impedance anomalies in transient time domain reflectometry (TDR) measurements on the cables. The approach is to interrogate the cable using time domain reflectometry (TDR) techniques, in which a known pulse is inserted into the cable, and reflections from the cable are measured. The key operating principle is that any important cable damage will manifest itself as an electrical impedance discontinuity that can be measured in the TDR response signal. Machine learning classification algorithms are effectively eliminated from consideration, because only a small number of cables is available for testing; so a sufficient sample size is not attainable. Nonetheless, a key requirement is to achieve very high probability of detection and very low probability of false alarm. The approach is to compare TDR signals from possibly damaged cables to signals or an empirical model derived from reference cables that are known to be undamaged. This requires that the TDR signals are reasonably repeatable from test to test on the same cable, and from cable to cable. Empirical studies show that the repeatability issue is the 'long pole in the tent' for damage detection, because it is has been difficult to achieve reasonable repeatability. This one factor dominated the project. The two-step model-based approach is summarized as follows: Step 1, Cable Modeling: Given input-output TDR signals s(n) and x{sub U}(n) for a cable known to be free of damage, system identification algorithms are used to compute a dynamic prediction-error cable model that has output {cflx x}{sub U}(n). The model is declared valid when the innovations e{sub U}(n) = x{sub U}(n) {cflx x}{sub U}(n) satisfy a statistical zero-mean whiteness test. This validated model output is then used as a known reference to which other cables can be compared. Step 2, Cable Testing: The TDR output signal x{sub D}(n) from a cable under test is compared with the model output {cflx x}{sub U}(n) by computing the innovations e{sub D}(n) = x{sub D}(n) {cflx x}{sub U}(n). The innovations are tested using a short-term whiteness test statistic, which employs a statistical confidence interval. If the cable passes the test, this implies that the model is valid and the cable is declared undamaged. If the cable fails the test, this indicates a model mismatch, which means that the cable's dielectric properties have changed; and this implies that the cable is damaged. The test threshold is adjusted to maximize probability of detection and minimize probability of false alarm according to an empirically determined receiver operating characteristic (ROC) curve. An associated confidence interval on the probability of correct classification is also provided. The effectiveness of the algorithm is demonstrated using measured TDR signals for undamaged and damaged cables. Experimental and algorithmic methods for coping with repeatability issues are presented. The model-based damage detection algorithms have been shown to perform well for some representative examples of real TDR signals acquired using the two-dimensional (2D) mockup fixture. If the damage causes a short circuit, then damage detection performance is generally good to excellent. Examples include the cases demonstrated in this report for cuts and pinholes. If the damage does not cause a short circuit, then damage detection performance is generally poor to fair. Examples include

Clark, G A; Robbins, C L; Wade, K A; Souza, P R

2009-03-24T23:59:59.000Z

214

A stable isotope dual-labelling approach to detect multiple insemination in un-irradiated and irradiated Anopheles arabiensis mosquitoes  

Science Journals Connector (OSTI)

The effect of irradiation on the incidence of multiple insemination in a laboratory strain of Anopheles arabiensis is described. Multiple insemination was studied by labelling semen with different stable isotopes. Image: Spermatozoa inside the testes of An. arabiensis.

Michelle EH Helinski; Rebecca C Hood; Bart GJ Knols

2008-04-10T23:59:59.000Z

215

Incipient fire detection system  

DOE Patents [OSTI]

A method and apparatus for an incipient fire detection system that receives gaseous samples and measures the light absorption spectrum of the mixture of gases evolving from heated combustibles includes a detector for receiving gaseous samples and subjecting the samples to spectroscopy and determining wavelengths of absorption of the gaseous samples. The wavelengths of absorption of the gaseous samples are compared to predetermined absorption wavelengths. A warning signal is generated whenever the wavelengths of absorption of the gaseous samples correspond to the predetermined absorption wavelengths. The method includes receiving gaseous samples, subjecting the samples to light spectroscopy, determining wavelengths of absorption of the gaseous samples, comparing the wavelengths of absorption of the gaseous samples to predetermined absorption wavelengths and generating a warning signal whenever the wavelengths of absorption of the gaseous samples correspond to the predetermined absorption wavelengths. In an alternate embodiment, the apparatus includes a series of channels fluidically connected to a plurality of remote locations. A pump is connected to the channels for drawing gaseous samples into the channels. A detector is connected to the channels for receiving the drawn gaseous samples and subjecting the samples to spectroscopy. The wavelengths of absorption are determined and compared to predetermined absorption wavelengths is provided. A warning signal is generated whenever the wavelengths correspond.

Brooks, Jr., William K. (Newport News, VA)

1999-01-01T23:59:59.000Z

216

Identification of kinematic parameters using several models with experimental verification  

E-Print Network [OSTI]

IVIachine 3. 1. 2 Reference Fixture 3. 1. 3 End-Effector 3. 1. 4 Interface Software 3. 2 Data. Collection Procedure 37 40 40 42 43 TABLE OF CONTENTS (Continued) CHAPTFR IV EXPERIMENTAL RESULTS FAG F. 4. 1 Computer Simulation 4. 2 Index... For The 30 Parameter lvtodel. . . . 36 4. 1 The Computer Simula, tion Result (Orientation Parameter) 4. 2 I'he Computer Simulation Result (Translation Parameter) 4. 3 The Set Of Calibrated Parameters For Model 1 4. 4 The Set Of Calibrated Parameters...

Rho, Jae Jeung

2012-06-07T23:59:59.000Z

217

IFT2015 Miklos Csuros 13 janvier 2012 Definition 2.1. Un type est un ensemble (possiblement infini) de valeurs et d'operations sur celles-ci.  

E-Print Network [OSTI]

) avec cl´es uniques. L'interface (minimale) contient l'op´eration essentielle search(k) qui retourne l ensemble d'´el´ements conserv´es chacun dans un noeud (fr) qui contient aussi un ou deux liens sur le noeud avec champs (key, info, next). SEARCH(x) // recherche d'un ´el´ement avec cl´e x sur une lis

Csürös, Miklós

218

IFT2015 Miklos Csuros 7 octobre 2012 Definition 2.1. Un type est un ensemble (possiblement infini) de valeurs et d'operations sur celles-ci.  

E-Print Network [OSTI]

) avec cl´es uniques. L'interface (minimale) contient l'op´eration essentielle search(k) qui retourne l ensemble d'´el´ements conserv´es chacun dans un noeud (fr) qui contient aussi un ou deux liens sur le noeud avec champs (key, info, next). SEARCH(x) // recherche d'un ´el´ement avec cl´e x sur une list

Csürös, Miklós

219

Fraud detection using data mining .  

E-Print Network [OSTI]

??Fraud is a major problem in South Africa and the world and organisations lose millions each year to fraud not being detected. Organisations can deal (more)

Pienaar, Abel Jacobus

2014-01-01T23:59:59.000Z

220

Heat Kernel Based Community Detection  

E-Print Network [OSTI]

Heat Kernel Based. Community Detection. Kyle Kloster. Purdue University. Joint with. David F. Gleich,. (Purdue), supported by. NSF CAREER. 1149756-CCF...

2014-09-16T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Parameter extraction from I-V characteristics of PV devices  

SciTech Connect (OSTI)

Device parameters such as series and shunt resistances, saturation current and diode ideality factor influence the behaviour of the current-voltage (I-V) characteristics of solar cells and photovoltaic modules. It is necessary to determine these parameters since performance parameters are derived from the I-V curve and information provided by the device parameters are useful in analyzing performance losses. This contribution presents device parameters of CuIn(Se,S){sub 2}- and Cu(In,Ga)(Se,S){sub 2}-based solar cells, as well as, CuInSe{sub 2}, mono- and multicrystalline silicon modules determined using a parameter extraction routine that employs Particle Swarm Optimization. The device parameters of the CuIn(Se,S){sub 2}- and Cu(In,Ga)(Se,S){sub 2}-based solar cells show that the contribution of recombination mechanisms exhibited by high saturation current when coupled with the effects of parasitic resistances result in lower maximum power and conversion efficiency. Device parameters of photovoltaic modules extracted from I-V characteristics obtained at higher temperature show increased saturation current. The extracted values also reflect the adverse effect of temperature on parasitic resistances. The parameters extracted from I-V curves offer an understanding of the different mechanisms involved in the operation of the devices. The parameter extraction routine utilized in this study is a useful tool in determining the device parameters which reveal the mechanisms affecting device performance. (author)

Macabebe, Erees Queen B. [Department of Electronics, Computer and Communications Engineering, Ateneo de Manila University, Loyola Heights, Quezon City 1108 (Philippines); Department of Physics and Centre for Energy Research, Nelson Mandela Metropolitan University, PO Box 77000, Port Elizabeth 6031 (South Africa); Sheppard, Charles J. [Department of Physics, University of Johannesburg, PO Box 524, Auckland Park 2006 (South Africa); Dyk, E. Ernest van [Department of Physics and Centre for Energy Research, Nelson Mandela Metropolitan University, PO Box 77000, Port Elizabeth 6031 (South Africa)

2011-01-15T23:59:59.000Z

222

Reconstructing Dark Energy : A Comparison of Cosmological Parameters  

E-Print Network [OSTI]

A large number of cosmological parameters have been suggested for obtaining information on the nature of dark energy. In this work, we study the efficacy of these different parameters in discriminating theoretical models of dark energy, using both currently available supernova (SNe) data, and simulations of future observations. We find that the current data does not put strong constraints on the nature of dark energy, irrespective of the cosmological parameter used. For future data, we find that the although deceleration parameter can accurately reconstruct some dark energy models, it is unable to discriminate between different models of dark energy, therefore limiting its usefulness. Physical parameters such as the equation of state of dark energy, or the dark energy density do a good job of both reconstruction and discrimination if the matter density is known to high accuracy. However, uncertainty in matter density reduces the efficacy of these parameters. A recently proposed parameter, Om(z), constructed f...

Pan, Alexander V

2010-01-01T23:59:59.000Z

223

Post-processing of seismic parameter data based on valid seismic event determination  

DOE Patents [OSTI]

An automated seismic processing system and method are disclosed, including an array of CMOS microprocessors for unattended battery-powered processing of a multi-station network. According to a characterizing feature of the invention, each channel of the network is independently operable to automatically detect, measure times and amplitudes, and compute and fit Fast Fourier transforms (FFT's) for both P- and S- waves on analog seismic data after it has been sampled at a given rate. The measured parameter data from each channel are then reviewed for event validity by a central controlling microprocessor and if determined by preset criteria to constitute a valid event, the parameter data are passed to an analysis computer for calculation of hypocenter location, running b-values, source parameters, event count, P- wave polarities, moment-tensor inversion, and Vp/Vs ratios. The in-field real-time analysis of data maximizes the efficiency of microearthquake surveys allowing flexibility in experimental procedures, with a minimum of traditional labor-intensive postprocessing. A unique consequence of the system is that none of the original data (i.e., the sensor analog output signals) are necessarily saved after computation, but rather, the numerical parameters generated by the automatic analysis are the sole output of the automated seismic processor.

McEvilly, Thomas V. (733 Alvarado Rd., Berkeley, CA 94705)

1985-01-01T23:59:59.000Z

224

A New Methodology for Early Anomaly Detection of BWR Instabilities  

SciTech Connect (OSTI)

The objective of the performed research is to develop an early anomaly detection methodology so as to enhance safety, availability, and operational flexibility of Boiling Water Reactor (BWR) nuclear power plants. The technical approach relies on suppression of potential power oscillations in BWRs by detecting small anomalies at an early stage and taking appropriate prognostic actions based on an anticipated operation schedule. The research utilizes a model of coupled (two-phase) thermal-hydraulic and neutron flux dynamics, which is used as a generator of time series data for anomaly detection at an early stage. The model captures critical nonlinear features of coupled thermal-hydraulic and nuclear reactor dynamics and (slow time-scale) evolution of the anomalies as non-stationary parameters. The time series data derived from this nonlinear non-stationary model serves as the source of information for generating the symbolic dynamics for characterization of model parameter changes that quantitatively represent small anomalies. The major focus of the presented research activity was on developing and qualifying algorithms of pattern recognition for power instability based on anomaly detection from time series data, which later can be used to formulate real-time decision and control algorithms for suppression of power oscillations for a variety of anticipated operating conditions. The research being performed in the framework of this project is essential to make significant improvement in the capability of thermal instability analyses for enhancing safety, availability, and operational flexibility of currently operating and next generation BWRs.

Ivanov, K. N.

2005-11-27T23:59:59.000Z

225

Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable  

DOE Patents [OSTI]

Methods and systems for engine control optimization are provided. A first and a second operating condition of a vehicle engine are detected. An initial value is identified for a first and a second engine control parameter corresponding to a combination of the detected operating conditions according to a first and a second engine map look-up table. The initial values for the engine control parameters are adjusted based on a detected engine performance variable to cause the engine performance variable to approach a target value. A first and a second sensitivity of the engine performance variable are determined in response to changes in the engine control parameters. The first engine map look-up table is adjusted when the first sensitivity is greater than a threshold, and the second engine map look-up table is adjusted when the second sensitivity is greater than a threshold.

Jiang, Li; Lee, Donghoon; Yilmaz, Hakan; Stefanopoulou, Anna

2014-10-28T23:59:59.000Z

226

Direct Detection of Sub-GeV Dark Matter  

SciTech Connect (OSTI)

Direct detection strategies are proposed for dark matter particles with MeV to GeV mass. In this largely unexplored mass range, dark matter scattering with electrons can cause single-electron ionization signals, which are detectable with current technology. Ultraviolet photons, individual ions, and heat are interesting alternative signals. Focusing on ionization, we calculate the expected dark matter scattering rates and estimate the sensitivity of possible experiments. Backgrounds that may be relevant are discussed. Theoretically interesting models can be probed with existing technologies, and may even be within reach using ongoing direct detection experiments. Significant improvements in sensitivity should be possible with dedicated experiments, opening up a window to new regions in dark matter parameter space.

Essig, Rouven; Mardon, Jeremy; Volansky, Tomer

2012-03-20T23:59:59.000Z

227

Supernova Neutrinos Detection On Earth  

E-Print Network [OSTI]

In this paper, we first discuss the detection of supernova neutrino on Earth. Then we propose a possible method to acquire information about $\\theta_{13}$ smaller than $1.5^\\circ$ by detecting the ratio of the event numbers of different flavor supernova neutrinos. Such an sensitivity cannot yet be achieved by the Daya Bay reactor neutrino experiment.

Xin-Heng Guo; Ming-Yang Huang; Bing-Lin Young

2009-05-12T23:59:59.000Z

228

"Dancing Icons" Detection Itamar Friedman  

E-Print Network [OSTI]

"Dancing Icons" Detection Itamar Friedman Technion Haifa, Israel ItamarF@tx.technion.ac.il Lihi these particular applications could be by taking a photo of their corresponding icons as displayed on our friend's screen. We then need to develop methods for au- tomatic detection and recognition of the icons

Zelnik-Manor, Lihi - Zelnik-Manor, Lihi

229

Axion dark matter detection with cold molecules  

Science Journals Connector (OSTI)

Current techniques cannot detect axion dark matter over much of its parameter space, particularly in the theoretically well-motivated region where the axion decay constant fa lies near the grand unified theory (GUT) and Planck scales. We suggest a novel experimental method to search for QCD axion dark matter in this region. The axion field oscillates at a frequency equal to its mass when it is a component of dark matter. These oscillations induce time varying CP-odd nuclear moments, such as electric dipole and Schiff moments. The coupling between internal atomic fields and these nuclear moments gives rise to time varying shifts to atomic energy levels. These effects can be enhanced by using elements with large Schiff moments such as the light Actinides, and states with large spontaneous parity violation, such as molecules in a background electric field. The energy level shift in such a molecule can be ?10-24??eV or larger. While challenging, this energy shift may be observable in a molecular clock configuration with technology presently under development. The detectability of this energy shift is enhanced by the fact that it is a time varying shift whose oscillation frequency is set by fundamental physics, and is therefore independent of the details of the experiment. This signal is most easily observed in the sub-MHz range, allowing detection when fa is ?1016??GeV, and possibly as low as 1015??GeV. A discovery in such an experiment would not only reveal the nature of dark matter and confirm the axion as the solution to the strong CP problem, it would also provide a glimpse of physics at the highest energy scales, far beyond what can be directly probed in the laboratory.

Peter W. Graham and Surjeet Rajendran

2011-09-15T23:59:59.000Z

230

Rapid deployment intrusion detection system  

SciTech Connect (OSTI)

A rapidly deployable security system is one that provides intrusion detection, assessment, communications, and annunciation capabilities; is easy to install and configure; can be rapidly deployed, and is reusable. A rapidly deployable intrusion detection system (RADIDS) has many potential applications within the DOE Complex: back-up protection for failed zones in a perimeter intrusion detection and assessment system, intrusion detection and assessment capabilities in temporary locations, protection of assets during Complex reconfiguration, and protection in hazardous locations, protection of assets during Complex reconfiguration, and protection in hazardous locations. Many DOE user-need documents have indicated an interest in a rapidly deployable intrusion detection system. The purpose of the RADIDS project is to design, develop, and implement such a system. 2 figs.

Graham, R.H.

1997-08-01T23:59:59.000Z

231

Identifying Suitable Degradation Parameters for Individual-Based Prognostics  

SciTech Connect (OSTI)

The ultimate goal of most prognostic systems is accurate prediction of the remaining useful life of individual systems or components based on their use and performance. Traditionally, individual-based prognostic methods use a measure of degradation to make lifetime estimates. Degradation measures may include sensed measurements, such as temperature or vibration level, or inferred measurements, such as model residuals or physics-based model predictions. Often, it is beneficial to combine several measures of degradation into a single parameter. Parameter features such as trendability, monotonicity, and prognosability can be used to compare candidate prognostic parameters to determine which is most useful for individual-based prognosis. By quantifying these features for a given parameter, the metrics can be used with any traditional optimization technique to identify an appropriate parameter. This parameter may be used with a parametric extrapolation model to make prognostic estimates for an individual unit. The proposed methods are illustrated with an application to simulated turbofan engine data.

Coble, Jamie B.; Hines, Wes

2012-09-30T23:59:59.000Z

232

IFT2015 Miklos Csuros 5 septembre 2013 Definition 2.1. Un type est un ensemble (possiblement infini) de valeurs et d'operations sur celles-ci.  

E-Print Network [OSTI]

'op´eration essentielle search(k) qui retourne l'info associ´ee avec la cl´e k, et l'op´eration d'ajouter un nouveau paire) qui contient aussi un ou deux liens sur le noeud suivant et/ou pr´ec´edent dans la liste. Chaque ´el

Csürös, Miklós

233

Algorithmic Parameter Space Reduction of a Systems Biology Model: A Case Study  

E-Print Network [OSTI]

DSM) Sensitivity Matrix (DSM) Most parameter reduction approachesa discretized sensitivity matrix (DSM). The term parameter

Sin, Celine

2012-01-01T23:59:59.000Z

234

PARAMETER OPTIMIZATIONS FOR VACUUM LASER ACCELERATION AT ATF...  

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

PARAMETER OPTIMIZATIONS FOR VACUUM LASER ACCELERATION AT ATFBNL * V. Yakimenko , M. Babzien, I. Ben-Zvi, K. Kusche, I. Pogorelsky, X. Wang Brookhaven National Laboratory ,...

235

Validation of CO2 line parameters used in temperature retrievals  

Science Journals Connector (OSTI)

A simultaneous retrieval procedure is utilized to investigate CO2 spectroscopic line parameters in order to reduce systematic errors in temperature retrievals. Provided are initial...

Shephard, Mark W; Clough, Shepard A; Delamere, Jennifer; Tobin, David C; Turner, David D; Revercomb, Hank E; Knuteson, Robert; Beer, Reinhard

236

The Landau-Migdal parameters from the Brueckner theory  

Science Journals Connector (OSTI)

The zero-order Landau-Migdal parameters are discussed in the framework of the Brueckner-Hartree-Fock approximation with realistic two- and...

D. Gambacurta; U. Lombardo; W. Zuo

2011-10-01T23:59:59.000Z

237

Parameter Identification with Adaptive Sparse Grid-based ...  

E-Print Network [OSTI]

Identifying parameter values in mathematical models of cellular processes is crucial to ascertain if ... participating chemical species, the uncertainty and complexity of the interconnected signaling ..... Software Simulation software (

Greg Buzzard

2009-08-12T23:59:59.000Z

238

Modeling and online parameter identification methods for Electrohydraulic Valvetrain Systems  

E-Print Network [OSTI]

bulk modulus which is dependent on pressure and temperature [29], which vary during operation we create an on-line parameter identification

Gray, James

2009-01-01T23:59:59.000Z

239

Evaluation of testing and reservoir parameters in geothermal...  

Open Energy Info (EERE)

testing and reservoir parameters in geothermal wells at Raft River and Boise, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings:...

240

Plasma parameters in electrospark deposition of silver coatings  

Science Journals Connector (OSTI)

Spectroscopic measurements and mathematical simulations are conducted to study the composition and parameters of spark discharge in depositing coatings with silver electrodes using an litron-22 generator. The...

V. D. Kurochkin; L. P. Kravchenko; L. O. Kryachko

2008-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Remote monitoring and diagnosis for control of EDM parameters .  

E-Print Network [OSTI]

??This thesis presents the concept of remote (Internet) data acquisition and processing for control of EDM parameters. It incorporates aspects of data analysis while performing (more)

Cilliers, Charl

2008-01-01T23:59:59.000Z

242

Constraining gravitational and cosmological parameters with astrophysical data  

E-Print Network [OSTI]

We use astrophysical data to shed light on fundamental physics by constraining parametrized theoretical cosmological and gravitational models. Gravitational parameters are those constants that parametrize possible departures ...

Mao, Yi, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

243

Accelerated maximum likelihood parameter estimation for stochastic biochemical systems  

E-Print Network [OSTI]

as: Daigle et al. : Accelerated maximum likelihood parame-Gillespie DT: Approximate accelerated stochastic simulationARTICLE Open Access Accelerated maximum likelihood parameter

Daigle, Bernie J; Roh, Min K; Petzold, Linda R; Niemi, Jarad

2012-01-01T23:59:59.000Z

244

Extraction of Equilibrium Energy and Kinetic Parameters from...  

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

Investigator for the Extraction of Equilibrium Energy and Kinetic Parameters from Single Molecule Force Spectroscopy Data. LLNL BES Programs Highlight Extraction of...

245

Verification Method for SSI Problems with Extended Parameter Ranges  

Broader source: Energy.gov [DOE]

Verification Method for SSI Problems with Extended Parameter Ranges 2014 U.S. DOE Natural Phenomena Hazards Meeting Carl J. Costantino and Associates www.cjcassoc.com

246

The effect of wellbore dynamics on data acquisition for pressure detection and the misuse of drilling parameters for surnormal pressure detection in the Gulf of Mexico  

E-Print Network [OSTI]

leases, offshore drilling in the Gu1f of Mexico has escalated to the point of being the most active area in the continental United States. This massive exploration and development program by the oil and gas industry has proven to be a marginal... adventure at best due to price controls on oil and gas in inteistate trade and the rapidly increasing cost of offshore drilling. In the last decade, the cost of drilling a 10, 000 foot exploratory we' ll has almost quadrupled. Because of the escalating...

Damron, Earl Bruce

2012-06-07T23:59:59.000Z

247

Maritime Interdiction Operations Small Craft Detection  

SciTech Connect (OSTI)

The Naval Postgraduate School has been conducting Tactical Network Topology (TNT) Maritime Interdiction Operations (MIO) experiments with Lawrence Livermore National Laboratory (LLNL) since early in 2005. In this work, we are investigating cutting edge technology to evaluate use of networks, advanced sensors and collaborative technology for globally-supported maritime interdiction operations. Some examples of our research include communications in harsh environments, between moving ships at sea; small boat drive-by radiation detection; network-centric collaboration with global partners; situational awareness; prototype sensors & biometric instruments. Since 2006, we have studied the concept of using a small vessel with fixed radiation sensors to do initial searches for illicit radioactive materials. In our work, we continue to evaluate concepts of operation for small boat monitoring. For example, in San Francisco Bay we established a simulated choke point using two RHIBs. Each RHIB had a large sodium iodide radiation sensor on board, mounted on the side nearest to the passing potential target boats. Once detections were made, notification over the network prompted a chase RHIB also equipped with a radiation sensor to further investigate the potential target. We have also used an unmanned surface vessel (USV) carrying a radiation sensor to perform the initial discovery. The USV was controlled remotely and to drive by boats in different configurations. The potential target vessels were arranged in a line, as a choke point and randomly spaced in the water. Search plans were problematic when weather, waves and drift complicated the ability to stay in one place. A further challenge is to both detect and identify the radioactive materials during the drive-by. Our radiation detection system, ARAM, Adaptable Radiation Area Monitor, is able to detect, alarm and quickly identify plausible radionuclides in real time. We have performed a number of experiments to better understand parameters of vessel speed, time, shielding, and distance in this complex three-dimensional space. At the NMIOTC in September 2009, we employed a dual detector portal followed by a chase. In this event, the challenge was to maintain communications after a lapse. When the chase went past the line-of sight reach of the Tactical Operational Center's (TOC) antenna, with interference from a fortress island in Suda Bay, Wave Relay extended the network for continued observation. Sodium iodide radiation detectors were mounted on two Hellenic Navy SEAL fast boats. After making the detection one of the portal boats maintained line-of sight while the other pursued the target vessel. Network access via Wave Relay antennas was maintained until the conclusion of the chase scenario. Progress has been made in the detection of radioactive materials in the maritime environment. The progression of the TNT MIO experiments has demonstrated the potential of the hardware to solve the problems encountered in this physically challenging environment. There continue to be interesting opportunities for research and development. These experiments provide a variety of platforms and motivated participants to perform real-world testing as solutions are made available.

Dougan, A D; Trombino, D; Dunlop, W; Bordetsky, A

2010-01-26T23:59:59.000Z

248

Teoria dei Gruppi --19 Aprile 2006 1. Sia G un gruppo e H un suo sottogruppo ...ssato;  

E-Print Network [OSTI]

che gHg 1 è un sottogruppo di G: Dimostrare che l'intersezione K di tutti i sottogruppi del tipo gHg 1 teoria dei Gruppi - 19 Aprile 2006 1. Se a = ghg 1 e b = gkg 1 , si ottiene ab = gh g 1 g kg 1 = g (hk) g 1 2 gHg 1 : Analogamente, a 1 = gh 1 g 1 2 gHg 1 : Per dimostrare la normalità: se x 2 K: si ha che

Catenacci, Roberto

249

Single-Molecule Detection of Transcription Factor Binding to DNA in Real Time:? Specificity, Equilibrium, and Kinetic Parameters  

Science Journals Connector (OSTI)

Preparation of Synthetic DNA Duplexes. ... DNA targets for the proteins consisted of short synthetic DNA duplexes formed from oligonucleotides purchased from Integrated DNA Technologies. ... Binding of synthetic DNA duplexes was tested by measuring the ability of duplexes labeled with the quencher dabcyl to quench GFP or BFL emission, because the excitation spectrum of dabcyl overlaps with the emission spectrum of these fluorophores. ...

Eric A. Nalefski; Eugene Nebelitsky; Janice A. Lloyd; Steven R. Gullans

2006-10-31T23:59:59.000Z

250

Laser Detection Of Material Thickness  

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

Detection Of Material Thickness Detection Of Material Thickness Laser Detection Of Material Thickness There is provided a method for measuring material thickness. Available for thumbnail of Feynman Center (505) 665-9090 Email Laser Detection Of Material Thickness There is provided a method for measuring material thickness comprising: (a) contacting a surface of a material to be measured with a high intensity short duration laser pulse at a light wavelength which heats the area of contact with the material, thereby creating an acoustical pulse within the material: (b) timing the intervals between deflections in the contacted surface caused by the reverberation of acoustical pulses between the contacted surface and the opposite surface of the material: and (c) determining the thickness of the material by calculating the proportion of

251

Mercury Detection with Gold Nanoparticles  

E-Print Network [OSTI]

R. J. Warmack, Detection of mercury vapor using resonatingA surface acoustic wave mercury vapor sensor, Ieee Trans.N. E. Selin, Integrating mercury science and policy in the

Crosby, Jeffrey

2013-01-01T23:59:59.000Z

252

Detecting Discrepancies and Improving Intelligibility  

E-Print Network [OSTI]

Detecting Discrepancies and Improving Intelligibility: Two Preliminary Evaluations of RIPTIDES evaluations of RIPTIDES, a sys- tem that combines information extraction (IE), extraction-based sum unduly sacrificing content relevance. 1 Introduction We report on two preliminary evaluations of RIPTIDES

Wagstaff, Kiri L.

253

.Nettrix: GDI+ and Collision Detection  

Science Journals Connector (OSTI)

In this chapter we introduce you to the basic concepts of GDI+, the extended library for native graphic ... collision detection algorithms. Although game developers use GDI+ functions to draw images ...

David Weller; Alexandre Santos Lobo

2004-01-01T23:59:59.000Z

254

Antineutrino Detection for Nuclear Monitoring  

E-Print Network [OSTI]

covertly acquire these special nuclear materials from: Assembled weapons Raw uranium ore Enriched uranium antineutrino monitoring infrastructure will help avert the spread of covert nuclear reactors and weaponsAntineutrino Detection for Nuclear Monitoring Draft #12;Graphic courtesy Lawrence Livermore

Mcdonough, William F.

255

DETECTION OF KOI-13.01 USING THE PHOTOMETRIC ORBIT  

SciTech Connect (OSTI)

We use the KOI-13 transiting star-planet system as a test case for the recently developed BEER algorithm, aimed at identifying non-transiting low-mass companions by detecting the photometric variability induced by the companion along its orbit. Such photometric variability is generated by three mechanisms: the beaming effect, tidal ellipsoidal distortion, and reflection/heating. We use data from three Kepler quarters, from the first year of the mission, while ignoring measurements within the transit and occultation, and show that the planet's ephemeris is clearly detected. We fit for the amplitude of each of the three effects and use the beaming effect amplitude to estimate the planet's minimum mass, which results in M{sub p} sin i = 9.2 {+-} 1.1 M{sub J} (assuming the host star parameters derived by Szabo et al.). Our results show that non-transiting star-planet systems similar to KOI-13.01 can be detected in Kepler data, including a measurement of the orbital ephemeris and the planet's minimum mass. Moreover, we derive a realistic estimate of the amplitudes uncertainties, and use it to show that data obtained during the entire lifetime of the Kepler mission of 3.5 years will allow detecting non-transiting close-in low-mass companions orbiting bright stars, down to the few Jupiter mass level. Data from the Kepler Extended Mission, if funded by NASA, will further improve the detection capabilities.

Shporer, Avi [Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Santa Barbara, CA 93117 (United States); Jenkins, Jon M.; Seader, Shawn E.; Smith, Jeffrey C.; Thompson, Susan E.; Twicken, Joseph D. [SETI Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States); Rowe, Jason F.; Sanderfer, Dwight T. [NASA Ames Research Center, Moffett Field, CA 94035 (United States); Still, Martin D. [Bay Area Environmental Research Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States); Welsh, William F., E-mail: ashporer@lcogt.net [Astronomy Department, San Diego State University, San Diego, CA 92182 (United States)

2011-12-15T23:59:59.000Z

256

Passive Neutron Detection at Borders  

SciTech Connect (OSTI)

Radiation portal monitor systems have been deployed to screen for illicit trafficking of radioactive materials at international border crossings. This report reviews some of the neutron detection requirements and capabilities of passive detection systems used for such applications. Simulations show the effects of cargo materials on neutron spectra, different detector geometries, using a large-array of neutron detectors, and the effects of backgrounds including ship effect neutrons.

Kouzes, Richard T.; Siciliano, Edward R.; Ely, James H.; Keller, Paul E.; McConn, Ronald J.

2008-03-01T23:59:59.000Z

257

Estimation of Parameters in Carbon Sequestration Models from Net Ecosystem  

E-Print Network [OSTI]

Estimation of Parameters in Carbon Sequestration Models from Net Ecosystem Exchange Data Luther in the context of a deterministic com- partmental carbon sequestration system. Sensitivity and approximation usefulness in the estimation of parameters within a compartmental carbon sequestration model. Previously we

White, Luther

258

Evaluating Parameter Sweep Workflows in High Performance Computing*  

E-Print Network [OSTI]

Evaluating Parameter Sweep Workflows in High Performance Computing* Fernando Chirigati1,# , Vítor a large amount of tasks that are submitted to High Performance Computing (HPC) environments. Different, Parameter Sweep, High Performance Computing (HPC) 1. INTRODUCTION1 # Many scientific experiments are based

Paris-Sud XI, Université de

259

ATP AND DNA AS MICROBIAL PARAMETERS IN THE ALIMENTARY TRACT  

E-Print Network [OSTI]

ATP AND DNA AS MICROBIAL PARAMETERS IN THE ALIMENTARY TRACT J. WOLSTRUP K. JENSEN A. JUST I. The aim of the present work was to investi- gate the use of ATP and DNA as parameters for microbial activity and biomass in the ali- mentary tract of cows and pigs. ATP was selected because of the promising

Paris-Sud XI, Université de

260

LINEAR LATTICE BOLTZMANN SCHEMES FOR PARAMETERS CHOICES AND ISOTROPY PROPERTIES  

E-Print Network [OSTI]

LINEAR LATTICE BOLTZMANN SCHEMES FOR ACOUSTIC: PARAMETERS CHOICES AND ISOTROPY PROPERTIES ADELINE parameters choi- ces for linear lattice Boltzmann schemes according to the definition of the isotropic order2Q9 scheme. Introduction Lattice Boltzmann schemes [7, 11, 8] are numerically very interesting be

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "detection un parameter" 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

Standard errors of parameter estimates in the ETAS model  

E-Print Network [OSTI]

1 Standard errors of parameter estimates in the ETAS model Abstract Point process models of seismic catalogs and in short- term earthquake forecasting. The standard errors of parameter estimates of conventional standard error estimates based on the Hessian matrix of the log- likelihood function of the ETAS

Schoenberg, Frederic Paik (Rick)

262

Parameter Estimation for Automatic Dose Control in Radioscopy  

E-Print Network [OSTI]

Parameter Estimation for Automatic Dose Control in Radioscopy Daniel Keysers, Sami Celik, Henning of the X-ray dose on this parameter alone leads to incorrect exposure, if direct radiation enters-ray dose needs to be adjusted continuously to the body region examined. In cur- rent systems

Keysers, Daniel

263

Wave momentum flux parameter: a descriptor for nearshore waves  

E-Print Network [OSTI]

Wave momentum flux parameter: a descriptor for nearshore waves Steven A. Hughes* US Army Engineer Available online 7 October 2004 Abstract A new parameter representing the maximum depth-integrated wave momentum flux occurring over a wave length is proposed for characterizing the wave contribution

US Army Corps of Engineers

264

Using Graphical Representations to Support the Calculation of Infusion Parameters  

E-Print Network [OSTI]

Using Graphical Representations to Support the Calculation of Infusion Parameters Sandy J. J. Gould in which participants were asked to solve a num- ber of infusion parameter problems that were represented representations transfer to actual workplace settings. Keywords: Graphical reasoning, infusion pumps, re

Subramanian, Sriram

265

Parameter estimation for knowledge and diagnosis of electrical machines  

E-Print Network [OSTI]

Chapitre 1 Parameter estimation for knowledge and diagnosis of electrical machines Jean in "Control Methods for Electrical Machines, ISTE Ltd and John Wiley & Sons Inc (Ed.) (2009) 207-243" DOI : 10.1002/9780470611760 #12;Chapter 1 Parameter estimation for knowledge and diagnosis of electrical machines 1

Boyer, Edmond

266

Stark parameter measurement of ArII UV spectral lines  

Science Journals Connector (OSTI)

......parameter measurement of Ar-ii UV spectral lines S. Djurovic 1 M. T. Belmonte 2 R. J...of Stark parameters of Ar-ii spectral lines. We report 126 half-width and 111 shift...16-000 to 26-000-K. atomic data|line: profiles|plasmas| 1 INTRODUCTION Stark......

S. Djurovic; M. T. Belmonte; R. J. Pelez; J. A. Aparicio; S. Mar

2013-01-01T23:59:59.000Z

267

ARM - Evaluation Product - Radiatively Important Parameters Best Estimate  

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

ProductsRadiatively Important Parameters Best ProductsRadiatively Important Parameters Best Estimate (RIPBE) Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Radiatively Important Parameters Best Estimate (RIPBE) 2002.03.01 - 2007.06.30 Site(s) SGP General Description The Radiatively Important Parameters Best Estimate (RIPBE) VAP combines multiple input datastreams, each with their own temporal and vertical resolution, to create a complete set of radiatively important parameters on a uniform vertical and temporal grid with quality control and source information for use as input to a radiative transfer model. One of the main drivers for RIPBE was to create input files for the BroadBand Heating Rate Profiles (BBHRP) VAP, but we also envision use of RIPBE files for user-run

268

Parameter estimation for binary neutron-star coalescences with realistic noise during the Advanced LIGO era  

E-Print Network [OSTI]

Advanced ground-based gravitational-wave (GW) detectors begin operation imminently. Their intended goal is not only to make the first direct detection of GWs, but also to make inferences about the source systems. Binary neutron-star mergers are among the most promising sources. We investigate the performance of the parameter-estimation pipeline that will be used during the first observing run of the Advanced Laser Interferometer Gravitational-wave Observatory (aLIGO) in 2015: we concentrate on the ability to reconstruct the source location on the sky, but also consider the ability to measure masses and the distance. Accurate, rapid sky-localization is necessary to alert electromagnetic (EM) observatories so that they can perform follow-up searches for counterpart transient events. We consider parameter-estimation accuracy in the presence of realistic, non-Gaussian noise. We find that the character of the noise makes negligible difference to the parameter-estimation performance. The source luminosity distance can only be poorly constrained, the median $90\\%$ ($50\\%$) credible interval scaled with respect to the true distance is $0.85$ ($0.38$). However, the chirp mass is well measured. Our chirp-mass estimates are subject to systematic error because we used gravitational-waveform templates without component spin to carry out inference on signals with moderate spins, but the total error is typically less than $10^{-3} M_\\odot$. The median $90\\%$ ($50\\%$) credible region for sky localization is $\\sim600~\\mathrm{deg^{2}}$ ($\\sim150~\\mathrm{deg^{2}}$), with $3\\%$ ($30\\%$) of detected events localized within $100~\\mathrm{deg^{2}}$. Early aLIGO, with only two detectors, will have a sky-localization accuracy for binary neutron stars of hundreds of square degrees; this makes EM follow-up challenging, but not impossible.

Christopher P. L. Berry; Ilya Mandel; Hannah Middleton; Leo P. Singer; Alex L. Urban; Alberto Vecchio; Salvatore Vitale; Kipp Cannon; Ben Farr; Will M. Farr; Philip B. Graff; Chad Hanna; Carl-Johan Haster; Satya Mohapatra; Chris Pankow; Larry R. Price; Trevor Sidery; John Veitch

2014-11-25T23:59:59.000Z

269

Parameter estimation for binary neutron-star coalescences with realistic noise during the Advanced LIGO era  

E-Print Network [OSTI]

Advanced ground-based gravitational-wave (GW) detectors begin operation imminently. Their intended goal is not only to make the first direct detection of GWs, but also to make inferences about the source systems. Binary neutron-star mergers are among the most promising sources. We investigate the performance of the parameter-estimation pipeline that will be used during the first observing run of the Advanced Laser Interferometer Gravitational-wave Observatory (aLIGO) in 2015: we concentrate on the ability to reconstruct the source location on the sky, but also consider the ability to measure masses and the distance. Accurate, rapid sky-localization is necessary to alert electromagnetic (EM) observatories so that they can perform follow-up searches for counterpart transient events. We consider parameter-estimation accuracy in the presence of realistic, non-Gaussian noise. We find that the character of the noise makes negligible difference to the parameter-estimation performance. The source luminosity distance ...

Berry, Christopher P L; Middleton, Hannah; Singer, Leo P; Urban, Alex L; Vecchio, Alberto; Vitale, Salvatore; Cannon, Kipp; Farr, Ben; Farr, Will M; Graff, Philip B; Hanna, Chad; Haster, Carl-Johan; Mohapatra, Satya; Pankow, Chris; Price, Larry R; Sidery, Trevor; Veitch, John

2014-01-01T23:59:59.000Z

270

Theory, phenomenology, and prospects for detection of supersymmetric dark matter  

Science Journals Connector (OSTI)

One of the great attractions of minimal superunified supersymmetric models is the prediction of a massive, stable, weakly interacting particle [the lightest supersymmetric partner (LSP)] which can have the right relic abundance to be a cold dark matter candidate. In this paper we investigate the identity, mass, and properties of the LSP after requiring gauge coupling unification, proper electroweak symmetry breaking, and numerous phenomenological constraints. We then discuss the prospects for detecting the LSP. The experiments which we investigate are (1) space annihilations into positrons, antiprotons, and ? rays, (2) large underground arrays to detect upward-going muons arising from LSP capture and annihilation in the sun and earth, (3) elastic collisions on matter in a table top apparatus, and (4) production of LSPs or decays into LSPs at high energy colliders. Our conclusions are that space annihilation experiments and large underground detectors are of limited help in initially detecting the LSP although perhaps they could provide confirmation of a signal seen in other experiments, while table top detectors have considerable discovery potential. Colliders such as the CERN LEP II, an upgraded Fermilab, and the CERN LHC might be the best dark matter detectors of all. This paper improves on most previous analyses in the literature by (a) only considering parameters not already excluded by several physics constraints listed above, (b) presenting results that are independent of (usually untenable) parameter choices, (c) comparing opportunities to study the same cold dark matter, and (d) including minor technical improvements.

E. Diehl; G. L. Kane; Chris Kolda; James D. Wells

1995-10-01T23:59:59.000Z

271

Parameter Scan of an Effective Group Difference Pseudopotential Using Grid Computing 1 Parameter Scan of an Effective Group Difference  

E-Print Network [OSTI]

Parameter Scan of an Effective Group Difference Pseudopotential Using Grid Computing 1 Parameter Scan of an Effective Group Difference Pseudopotential Using Grid Computing Wibke SUDHOLT and Kim K of the actual biology/biochemistry. The ability to invoke modern grid technologies offers the ability to create

Abramson, David

272

MESURE DE LA DISTRIBUTION RADIALE DU COURANT DANS UN PLASMA DU TYPE TOKAMAK,  

E-Print Network [OSTI]

85 MESURE DE LA DISTRIBUTION RADIALE DU COURANT DANS UN PLASMA DU TYPE TOKAMAK, A L'AIDE D plasma du type Tokamak à l'aide d'un faisceau de lithium neutre. On décrit les différentes parties du analyse. Finalement les résultats expérimentaux obtenus sur un Tokamak sont décrits. Les profils sont

Boyer, Edmond

273

Un mod`ele de Programmation Mixte pour la tarification des telecommunications  

E-Print Network [OSTI]

Un mod`ele de Programmation Mixte pour la tarification des t´el´ecommunications Mustapha Bouhtou1´e sur les t´el´ecommunications. Cet article traite d'un nouveau probl`eme de maximi- sation des revenus d'un op´erateur de t´el´ecommunications en optimisant les prix de ses services. Une strat

Paris-Sud XI, Université de

274

UN MODLE COMPUTATIONNEL DE L'AUTOMATISATION MOTRICE Lionel Rigoux et Olivier Sigaud  

E-Print Network [OSTI]

UN MOD?LE COMPUTATIONNEL DE L'AUTOMATISATION MOTRICE Lionel Rigoux et Olivier Sigaud Institut des proposons un modèle computationnel de l'automati- sation motrice qui rend compte à la fois du transfert de cours de l'au- tomatisation de séquences motrices. L'un des concepts qui émerge de cette littérature est

Paris-Sud XI, Université de

275

Progetto e analisi energetica di un complesso di edifici residenziali a Parigi.  

E-Print Network [OSTI]

??La Tesi di Laurea consiste nella progettazione di un complesso residenziale nellarea di Porte des Lilas, ai margini della periferia di Parigi. Il tema (more)

D'Acunto, Pierluigi

2007-01-01T23:59:59.000Z

276

Dveloppement d'un Jeu sous Android Axel Carlier, Vincent Charvillat  

E-Print Network [OSTI]

· un travail sur la gamification : l'ajout de fonctionnalités telles que des défis, des récompenses

Grigoras, .Romulus

277

Studio e progettazione di un sistema di controllo termostatico con cella di Peltier per APD.  

E-Print Network [OSTI]

??Lo scopo di questa tesi lo studio e la progettazione di un controllore di temperatura che sia in grado di mantenere la temperatura di (more)

CIPRIANI, SERENA

2010-01-01T23:59:59.000Z

278

Modellazione e simulazione della dinamica di un micro-UAV ad ala battente.  

E-Print Network [OSTI]

??Il presente lavoro consiste nella scrittura del modello matematico necessario allo studio della dinamica del volo di un micro-UAV ad ala battente. Successivamente questo modello (more)

DEL BORRELLO, ALESSIO

2007-01-01T23:59:59.000Z

279

Lepra infantil: Presentacin de un caso (Childhood leprosy: Report of a case)  

E-Print Network [OSTI]

clnico Paciente escolar de sexo femenino, de 10 aos de2 , 6 ]. En cuanto al sexo existe un ligero predominio del

Ortiz, Beatriz Di Martino; Masi, Mirtha Rodriguez; Knopfelmacher, Oilda; Lezcano, Lourdes Bolla de

2011-01-01T23:59:59.000Z

280

The Cosmic Quartet - Cosmological Parameters of a Smoothed Inhomogeneous Spacetime  

E-Print Network [OSTI]

We discuss the relation between `bare' cosmological parameters as the true spatial average characteristics that determine the cosmological model, and the parameters interpreted by observers with a `Friedmannian bias', i.e., within a homogeneous space geometry. We may say that the latter are `dressed' by the smoothed-out geometrical inhomogeneities of the surveyed spatial region. We identify two effects that quantify the difference between `bare' and `dressed' parameters: `curvature backreaction' and `volume effect'. An estimate of the latter is given in terms of a simple geometrical example.

Thomas Buchert; Mauro Carfora

2003-12-25T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Parameters and variables appearing in repository-siting models  

SciTech Connect (OSTI)

Included in this report is a summary of data characterizing the parameters and variables appearing in repository siting models. These data cover the processes of saturates flow, unsaturated flow, surface water flow, geochemistry, heat transport, solute transport, and geomechanical response. Definitions and ranges of values are provided for equation parameters, source terms, dependent variables, boundary conditions, and initial conditions for the equations that are solved in the repository siting models. The data were compiled to help guide the selection of values of parameters and variables to be used in benchmark problems.

Mercer, J.W.; Thomas, S.D.; Ross, B.

1982-12-01T23:59:59.000Z

282

Detection of the internal corrosion in pipeline  

E-Print Network [OSTI]

Detection of the internal corrosion in pipeline. Hyeonbae Kang. In this talk I will explain our new methods to detect internal corrosions in pipelines.

2006-10-17T23:59:59.000Z

283

Chemistry for Measurement and Detection Science  

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

Chemistry for Measurement and Detection Science Chemistry for Measurement and Detection Science Research into alternative forms of energy, especially energy security, is one of the...

284

Fraud detection in medicare claims: A multivariate outlier detection approach  

SciTech Connect (OSTI)

We apply traditional and customized multivariate outlier detection methods to detect fraud in medicare claims. We use two sets of 11 derived features, and one set of the 22 combined features. The features are defined so that fraudulent medicare providers should tend to have larger features values than non-fraudulent providers. Therefore we have an apriori direction ({open_quotes}large values{close_quotes}) in high dimensional feature space to search for the multivariate outliers. We focus on three issues: (1) outlier masking (Example: the presence of one outlier can make it difficult to detect a second outlier), (2) the impact of having an apriori direction to search for fraud, and (3) how to compare our detection methods. Traditional methods include Mahalanobis distances, (with and without dimension reduction), k-nearest neighbor, and density estimation methods. Some methods attempt to mitigate the outlier masking problem (for example: minimum volume ellipsoid covariance estimator). Customized methods include ranking methods (such as Spearman rank ordering) that exploit the {open_quotes}large is suspicious{close_quotes} notion. No two methods agree completely which providers are most suspicious so we present ways to compare our methods. One comparison method uses a list of known-fraudulent providers. All comparison methods restrict attention to the most suspicious providers.

Burr, T.; Hale, C.; Kantor, M. [and others

1997-04-01T23:59:59.000Z

285

Parameter Study on Prediction Methods for TBM Penetration Rate  

Science Journals Connector (OSTI)

Penetration rate prediction of Tunnel Boring Machine (TBM) ... research, influence of effective parameters on TBM penetration rate is investigated by sensitivity analysis of three...TBM.... Based on these analyse...

Mahdi Zoorabadi; Serkan Saydam

2013-04-01T23:59:59.000Z

286

A Parameter for Forecasting Tornadoes Associated with Landfalling Tropical Cyclones  

Science Journals Connector (OSTI)

The authors develop a statistical guidance product, the tropical cyclone tornado parameter (TCTP), for forecasting the probability of one or more tornadoes during a 6-h period that are associated with landfalling tropical cyclones affecting the ...

Matthew J. Onderlinde; Henry E. Fuelberg

2014-10-01T23:59:59.000Z

287

Effect of quenching on the kaon B parameter  

Science Journals Connector (OSTI)

We compute the kaon B parameter on an ensemble of lattices which include the effects of dynamical quark loops. Comparing with our previous quenched calculations, we find that dynamical fermions have negligible effect.

Gregory Kilcup

1993-09-13T23:59:59.000Z

288

Impacts of Some Building Design Parameters on Heat Pump Applications  

E-Print Network [OSTI]

. In this study; in order to provide energy conservation and climatic comfort in buildings, an approach which aims to control the energy consumption of heat pumps by controlling decisions related to building design parameters have been developed. For this purpose...

Erdim, B.; Manioglu, G.

2011-01-01T23:59:59.000Z

289

A nondiagrammatic calculation of the Rho parameter from heavy fermions  

E-Print Network [OSTI]

A simple nondiagrammatic evaluation of the nondecoupling effect of heavy fermions on the Veltman's Rho parameter is presented in detail. This calculation is based on the path integral approach, the electroweak chiral Lagrangian formalism, and the Schwinger proper time method.

Hong-Hao Zhang

2009-11-21T23:59:59.000Z

290

Electric Parameters of the D.C. Carbon Arc  

Science Journals Connector (OSTI)

The basic electric parameters of an arc discharge are the current strength (i) and the voltage drop across the gap (V). Both quantities can be measured without difficulty. In general, a relationship between V and...

P. W. J. M. Boumans

1966-01-01T23:59:59.000Z

291

Density of states and order parameter in dirty anisotropic superconductors  

E-Print Network [OSTI]

We analyze in detail how the scattering by nonmagnetic impurities affects the shape and amplitude of the order parameter (OF) and the density of states in anisotropic superconductors in the framework of BCS theory. Special attention is paid...

Pokrovsky, SV; Pokrovsky, Valery L.

1996-01-01T23:59:59.000Z

292

A Lumped Parameter Model for the Edwards Aquifer  

E-Print Network [OSTI]

A lumped parameter model has been developed to simulate monthly water levels and spring flows in the Edwards Aquifer. It is less complex and easier to use than the existing complex finite difference models for the Edwards Aquifer. The lumped...

Anaya, Roberto; Wanakule, Nisai

293

Active Estimation of Object Dynamics Parameters with Tactile Sensors  

E-Print Network [OSTI]

The estimation of parameters that affect the dynamics of objectssuch as viscosity or internal degrees of freedomis an important step in autonomous and dexterous robotic manipulation of objects. However, accurate and ...

Saal, Hannes; Ting, Jo-Anne; Vijayakumar, Sethu

2010-01-01T23:59:59.000Z

294

Electromagnetic Inverse Problems Involving Distributions of Dielectric Mechanisms and Parameters  

E-Print Network [OSTI]

Electromagnetic Inverse Problems Involving Distributions of Dielectric Mechanisms and Parameters H University, Raleigh, NC 27695-8205 August 17, 2005 Abstract We consider electromagnetic interrogation, uniform, log-normal, and log-Bi-Gaussian distributions. Keywords: Electromagnetic interrogation

295

Principal physicochemical parameters of natural mineral-forming fluids  

Science Journals Connector (OSTI)

The authors database (which includes data from more than 17500 publications on fluid and melt inclusions in minerals) was used to generalize information on the principal physicochemical parameters of natural ...

V. B. Naumov; V. A. Dorofeeva; O. F. Mironova

2009-08-01T23:59:59.000Z

296

Constraining Climate Model Parameters from Observed 20th Century Changes  

E-Print Network [OSTI]

We present revised probability density functions for climate model parameters (effective climate sensitivity, the rate of deep-ocean heat uptake, and the strength of the net aerosol forcing) that are based on climate change ...

Forest, Chris Eliot

297

Universal software packages to model the distributed-parameter systems  

Science Journals Connector (OSTI)

Consideration was given to the universal software packages for modeling objects and distributed-parameter systems obeying the partial differential equations. The packages may serve as important tools for industrial automation because the majority of ... Keywords: 07.05.Tp

E. E. Dudnikov

2009-01-01T23:59:59.000Z

298

Multi-parameter control for centrifugal compressor performance optimization  

E-Print Network [OSTI]

The potential performance benefit of actuating inlet guide vane (IGV) angle, variable diffuser vane (VDV) angle and impeller speed to implement a multi-parameter control on a centrifugal compressor system is assessed. The ...

Mannai, Sbastien (Sbastien Karim)

2014-01-01T23:59:59.000Z

299

Topics on Regularization of Parameters in Multivariate Linear Regression  

E-Print Network [OSTI]

are selected. Estimating the degrees of freedom when penalizing the entries of the matrices presents new computational challenges. A simulation study and real data analysis demonstrate that the MRCEII, which selects the tuning parameter of the precision matrix...

Chen, Lianfu

2012-02-14T23:59:59.000Z

300

Application of parameter analysis principles in design: an experimental study  

E-Print Network [OSTI]

APPLICATION OF PARAMETER ANALYSIS PRINCIPLES IN DESIGN: AN EXPERIMENTAL STUDY A Thesis by VINAI ROJANAVANICH Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1991 Major Subject: Mechanical Engineering APPLICATION OF PARAMETER ANALYSIS PRINCIPLES IN DESIGN: AN EXPERIMENTAL STUDY A Thesis by VINAI ROJANAVANICH Approved as to style and content by: David G. sson (Chair...

Rojanavanich, Vinai

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Kinetic parameter estimation using nonisothermal trickle-bed reactor data  

E-Print Network [OSTI]

KINETIC PARAMETER ESTIMATION USING NONISOTHERMAL TRICKLE-BED REACTOR DATA A Thesis by MICHAEL ALLEN MENSIK Submitted to the Graduate College of Texas ALM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1985 Major Subject: Chemical Engineering KINETIC PARAMETER ESTIMATION USING NONISOTHERMAL TRICKLE-BED REACTOR DATA A Thesis by MICHAEL ALLEN MENSIK Approved as to style and content by: A. ger n (Chairman of Comm ee) R. G. Antho...

Mensik, Michael Allen

2012-06-07T23:59:59.000Z

302

Cosmological-Parameter Determination with Microwave Background Maps  

E-Print Network [OSTI]

The angular power spectrum of the cosmic microwave background (CMB) contains information on virtually all cosmological parameters of interest, including the geometry of the Universe ($\\Omega$), the baryon density, the Hubble constant ($h$), the cosmological constant ($\\Lambda$), the number of light neutrinos, the ionization history, and the amplitudes and spectral indices of the primordial scalar and tensor perturbation spectra. We review the imprint of each parameter on the CMB. Assuming only that the primordial perturbations were adiabatic, we use a covariance-matrix approach to estimate the precision with which these parameters can be determined by a CMB temperature map as a function of the fraction of sky mapped, the level of pixel noise, and the angular resolution. For example, with no prior information about any of the cosmological parameters, a full-sky CMB map with $0.5^\\circ$ angular resolution and a noise level of 15 $\\mu$K per pixel can determine $\\Omega$, $h$, and $\\Lambda$ with standard errors of $\\pm0.1$ or better, and provide determinations of other parameters which are inaccessible with traditional observations. Smaller beam sizes or prior information on some of the other parameters from other observations improves the sensitivity. The dependence on the the underlying cosmological model is discussed.

Gerard Jungman; Marc Kamionkowski; Arthur Kosowsky; David N. Spergel

1996-05-23T23:59:59.000Z

303

PC-SAFT parameters from ab initio calculations  

Science Journals Connector (OSTI)

Abstract We use highly accurate ab initio calculations of binding enthalpies and entropies of gas phase clusters of alcohols to demonstrate how they can be used to obtain association parameters for PC-SAFT. The thermochemical results demonstrate that cooperativity effects and state dependent cluster distributions cause a strongly varying average enthalpy and entropy per bond as function of temperature and density for alcohols. In contrast to this, the two association parameters of PC-SAFT lead to density independent bond enthalpy and entropy and are thus effective parameters. Therefore, we choose to compute the cluster distribution at a universal state point and show that the thus obtained association parameters can be used to reduce the number of adjustable parameters from 5 to 3 with only a marginal loss of accuracy for most of the studied systems, and even an estimation of thermodynamic properties without adjusted parameters is possible. The ab initio calculations suggest that the 2B association scheme is more appropriate for 1-alkanols than the 3B one.

Muhammad Umer; Katja Albers; Gabriele Sadowski; Kai Leonhard

2014-01-01T23:59:59.000Z

304

Optimization of Fault Detection/Diagnosis Model for Thermal Storage System Using AIC  

E-Print Network [OSTI]

of the event. In addition, human learning, recognition, and optimal judgment process of any event can be simulated by optimizing the most effective pa-rameters and their numbers for detection and diagnosis by the use of variable selection method. In previous...

Pan, S.; Zheng, M.; Nakahara, N.

2006-01-01T23:59:59.000Z

305

Misfire detection of a turbocharged diesel engine by using artificial neural networks  

Science Journals Connector (OSTI)

Abstract This study presents a novel misfire detection model of a turbocharged diesel engine by using artificial neural network model. An explicit back propagation neural network has been developed to identify diesel combustion misfire according to the general engine operating parameters. The parameters are selected by using engine fault mode tree analysis. The proposed neural network model has been implemented in MATLAB/Neural Network Toolbox environment. Experimental study then has been performed on a V6 turbocharged diesel engine to get the parameters for both network training and validation purpose. Initial results show that misfire can be captured in most cases, however some mis-detection could happen though the mean square error of the model is satisfied. Furthermore, the in-cycle engine speed variation, a deductive parameter of transient engine speed, is added into the training data, which promotes the final results to full correct detection with no exception. The current study provides a new way to detect the happenings of misfire of turbocharged diesel engine.

Bolan Liu; Changlu Zhao; Fujun Zhang; Tao Cui; Jianyun Su

2013-01-01T23:59:59.000Z

306

Fusion of voice signal information for detection of mild laryngeal pathology  

Science Journals Connector (OSTI)

Detection of mild laryngeal disorders using acoustic parameters of human voice is the main objective in this study. Observations of sustained phonation (audio recordings of vocalized /a/) are labeled by clinical diagnosis and rated by severity (from ... Keywords: Angle modulated differential evolution, Ensemble of classifiers, Feature selection, Pathological voice, Random forest, SVM

Evaldas Vaiciukynas, Antanas Verikas, Adas Gelzinis, Marija Bacauskiene, Zvi Kons, Aharon Satt, Ron Hoory

2014-05-01T23:59:59.000Z

307

Intelligent-based Structural Damage Detection Model  

SciTech Connect (OSTI)

This paper presents the application of a novel Artificial Neural Network (ANN) model for the diagnosis of structural damage. The ANN model, denoted as the GRNNFA, is a hybrid model combining the General Regression Neural Network Model (GRNN) and the Fuzzy ART (FA) model. It not only retains the important features of the GRNN and FA models (i.e. fast and stable network training and incremental growth of network structure) but also facilitates the removal of the noise embedded in the training samples. Structural damage alters the stiffness distribution of the structure and so as to change the natural frequencies and mode shapes of the system. The measured modal parameter changes due to a particular damage are treated as patterns for that damage. The proposed GRNNFA model was trained to learn those patterns in order to detect the possible damage location of the structure. Simulated data is employed to verify and illustrate the procedures of the proposed ANN-based damage diagnosis methodology. The results of this study have demonstrated the feasibility of applying the GRNNFA model to structural damage diagnosis even when the training samples were noise contaminated.

Lee, Eric Wai Ming; Yu, K.F. [Department of Building and Construction, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong (Hong Kong)

2010-05-21T23:59:59.000Z

308

A Decision Theoretic Approach to Evaluate Radiation Detection Algorithms  

SciTech Connect (OSTI)

There are a variety of sensor systems deployed at U.S. border crossings and ports of entry that scan for illicit nuclear material. In this work, we develop a framework for comparing the performance of detection algorithms that interpret the output of these scans and determine when secondary screening is needed. We optimize each algorithm to minimize its risk, or expected loss. We measure an algorithms risk by considering its performance over a sample, the probability distribution of threat sources, and the consequence of detection errors. While it is common to optimize algorithms by fixing one error rate and minimizing another, our framework allows one to simultaneously consider multiple types of detection errors. Our framework is flexible and easily adapted to many different assumptions regarding the probability of a vehicle containing illicit material, and the relative consequences of a false positive and false negative errors. Our methods can therefore inform decision makers of the algorithm family and parameter values which best reduce the threat from illicit nuclear material, given their understanding of the environment at any point in time. To illustrate the applicability of our methods, in this paper, we compare the risk from two families of detection algorithms and discuss the policy implications of our results.

Nobles, Mallory A.; Sego, Landon H.; Cooley, Scott K.; Gosink, Luke J.; Anderson, Richard M.; Hays, Spencer E.; Tardiff, Mark F.

2013-07-01T23:59:59.000Z

309

detection  

National Nuclear Security Administration (NNSA)

State University, as well as several national laboratories, including Los Alamos, Oak Ridge and Pacific Northwest.

NNSA also recently announced a 25 million grant to...

310

Development of Integrated Online Monitoring Systems for Detection of Diversion at Natural Uranium Conversion Facilities  

SciTech Connect (OSTI)

Recent work at Oak Ridge National Laboratory (ORNL) has focused on some source term modeling of uranyl nitrate (UN) as part of a comprehensive validation effort employing gamma-ray detector instrumentation for the detection of diversion from declared conversion activities. Conversion, the process by which natural uranium ore (yellowcake) is purified and converted through a series of chemical processes into uranium hexafluoride gas (UF6), has historically been excluded from the nuclear safeguards requirements of the 235U-based nuclear fuel cycle. The undeclared diversion of this product material could potentially provide feedstock for a clandestine weapons program for state or non-state entities. Given the changing global political environment and the increased availability of dual-use nuclear technology, the International Atomic Energy Agency has evolved its policies to emphasize safeguarding this potential feedstock material in response to dynamic and evolving potential diversion pathways. To meet the demand for instrumentation testing at conversion facilities, ORNL developed the Uranyl Nitrate Calibration Loop Equipment (UNCLE) facility to simulate the full-scale operating conditions of a purified uranium-bearing aqueous stream exiting the solvent extraction process in a natural uranium conversion plant. This work investigates gamma-ray signatures of UN circulating in the UNCLE facility and evaluates detector instrumentation sensitivity to UN for safeguards applications. These detector validation activities include assessing detector responses to the UN gamma-ray signatures for spectrometers based on sodium iodide, lanthanum bromide, and germanium detectors. The results of measurements under static and dynamic operating conditions at concentrations ranging from 10-90g U/L of naturally enriched UN will be presented. A range of gamma-ray lines was examined and self-attenuation factors were calculated, in addition to attenuation for transmission measurement of density, concentration and enrichment. A detailed uncertainty analysis will be presented providing insights into instrumentation limitations to spoofing.

Dewji, Shaheen A [ORNL] [ORNL; Lee, Denise L [ORNL] [ORNL; Croft, Stephen [ORNL] [ORNL; McElroy, Robert Dennis [ORNL] [ORNL; Hertel, Nolan [Georgia Institute of Technology] [Georgia Institute of Technology; Chapman, Jeffrey Allen [ORNL] [ORNL; Cleveland, Steven L [ORNL] [ORNL

2013-01-01T23:59:59.000Z

311

Costeffective Outbreak Detection in Networks  

E-Print Network [OSTI]

on how contaminants spread in the network Problem posed by US Environmental Protection Agency S On which nodes should we place sensors to efficiently detect the all possible contaminations? S #12 Given a graph G(V,E) and a budget B for sensors and data on how contaminations spread over the network

Yang, Qiang

312

Anomalous change detection in imagery  

DOE Patents [OSTI]

A distribution-based anomaly detection platform is described that identifies a non-flat background that is specified in terms of the distribution of the data. A resampling approach is also disclosed employing scrambled resampling of the original data with one class specified by the data and the other by the explicit distribution, and solving using binary classification.

Theiler, James P. (Los Alamos, NM); Perkins, Simon J. (Santa Fe, NM)

2011-05-31T23:59:59.000Z

313

Information sharing for distributed intrusion detection systems  

Science Journals Connector (OSTI)

In this paper, we present an information sharing model for distributed intrusion detection systems. The typical challenges faced by distributed intrusion detection systems is what information to share and how to share information. We address these problems ... Keywords: Anomaly detection, Denial of service attack, Distributed intrusion detection, Information sharing, Reflector attack

Tao Peng; Christopher Leckie; Kotagiri Ramamohanarao

2007-08-01T23:59:59.000Z

314

Noise canceling in-situ detection  

DOE Patents [OSTI]

Technologies applicable to noise canceling in-situ NMR detection and imaging are disclosed. An example noise canceling in-situ NMR detection apparatus may comprise one or more of a static magnetic field generator, an alternating magnetic field generator, an in-situ NMR detection device, an auxiliary noise detection device, and a computer.

Walsh, David O.

2014-08-26T23:59:59.000Z

315

Real-time Detection of Parametric Roll  

E-Print Network [OSTI]

Early Detection of PArametric ROLL on Ships #12;Real-time Detection of Parametric Roll: FullReal-time Detection of Parametric Roll: Full-scale Validation Roberto Galeazzi Assistant Professor-time Detection of Parametric Roll: Full-scale validation CeSOS Highlights & AMOS Visions Conference 2 DTU

Nørvåg, Kjetil

316

ATLAS & Particle Detection The ATLAS Experiment  

E-Print Network [OSTI]

SCIPP ATLAS & Particle Detection The ATLAS Experiment and Particle Detection A.A. Grillo SCIPP - UCSC 1 #12;SCIPP ATLAS & Particle Detection A.A. Grillo What's Happening in this Bucolic Place? 2 Arial View of CERN and the Geneva Countryside #12;SCIPP ATLAS & Particle Detection A

California at Santa Cruz, University of

317

Detection of Neutrons with Scintillation Counters  

DOE R&D Accomplishments [OSTI]

Detection of slow neutrons by: detection of single gamma rays following capture by cadmium or mercury; detection of more than one gamma ray by observing coincidences after capture; detection of heavy charged particles after capture in lithium or baron nuclei; possible use of anthracene for counting fast neutrons investigated briefly.

Hofstadter, R.

1948-11-01T23:59:59.000Z

318

La carte Crous, un porte-monnaie lectronique aux nombreux avantages  

E-Print Network [OSTI]

La carte Crous, un porte-monnaie électronique aux nombreux avantages : · moins de file d une carte bleue ou en espèces, · vous disposez d'un porte-monnaie électronique universel utilisable heures des repas. Votre carte d'étudiant peut également comporter le porte- monnaie Moneo. Prix

319

Comptes Rendus des JNC 16 Toulouse 2009 Dimensionnement d'un fuselage composite ralis  

E-Print Network [OSTI]

Comptes Rendus des JNC 16 Toulouse 2009 Dimensionnement d'un fuselage composite réalisé par infusion de résine Numerical modeling of an aircraft composite fuselage manufactured by Liquid Resin Le projet FUSCOMP (FUSelage COMPosite) est un programme de Recherche & Développement qui a reçu la

Paris-Sud XI, Université de

320

Google, ou comment s'imposer comme un point de passage oblig 1. Introduction  

E-Print Network [OSTI]

, sur le livre de John Battelle « The Search » pour les aspects économiques et stratégiques de la of a large-scale hypertextual web search engine » qui traite du fonctionnement de Google sur le plan d'un projet de recherche pour travailler sur un moteur d'analyse des liens hypertextes qu

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "detection un parameter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

1. Telefnica I+D 1.1. Implementacin y evaluacin de prestaciones de un  

E-Print Network [OSTI]

1. Telefónica I+D 1.1. Implementación y evaluación de prestaciones de un PCE multicapa Tutor: Dr del protocolo PCE en entornos multicapa. El alumno partirá sobre un desarrollo del PCE, por lo que debe realizar únicamente las extensiones necesarias. El alumno deberá evaluar las prestaciones del PCE

Autonoma de Madrid, Universidad

322

Exclusion mutuelle Detection de la terminaison  

E-Print Network [OSTI]

-Agrawala Algorithme `a base d'arbitres ´Election vs exclusion mutuelle Probl`emes similaires Isoler un processus parmi tous : introduire une asym´etrie Probl`emes bien diff´erents ´Election d'un quelconque des processus mais exclusion mutuelle parmi les candidats L'´election est d´efinitive mais l'exclusion mutuelle se

Grigoras, .Romulus

323

A Monte Carlo study of the distribution of parameter estimators in a dual exponential decay model  

E-Print Network [OSTI]

inspired me to overcome several problems in preparing this paper. TABLE OF CONTENTS Chapter I. INTRODUCTION II, PROCEDURE Selecting Representative Parameters Generating Sample Curves Obtaining the Parameter Estimates 3 3 4 III, ANALYSIS... Type I Parameter Estimates 3. Set-3 Type I Parameter Estimates 4. Set-3A Type I Parameter Estimates 5. Summary of Chi-square Goodness of Fit Test 6. Set-1 Type II Parameter Estimates 7. Set-2 Type II Parameter Estimates 8. Set-3 Type II Parameter...

Garcia, Raul

1969-01-01T23:59:59.000Z

324

Environmental Transport Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This analysis report is one of the technical reports documenting the Environmental Radiation Model for Yucca Mountain Nevada (ERMYN), a biosphere model supporting the total system performance assessment (TSPA) for the geologic repository at Yucca Mountain. A graphical representation of the documentation hierarchy for the ERMYN is presented in Figure 1-1. This figure shows relationships among the reports developed for biosphere modeling and biosphere abstraction products for the TSPA, as identified in the ''Technical Work Plan: for Biosphere Modeling and Expert Support'' (TWP) (BSC 2003 [163602]). Some documents in Figure 1-1 may be under development and not available when this report is issued. This figure provides an understanding of how this report contributes to biosphere modeling in support of the license application (LA), but access to the listed documents is not required to understand the contents of this report. This report is one of the reports that develops input parameter values for the biosphere model. The ''Biosphere Model Report'' (BSC 2003 [160699]) describes the conceptual model, the mathematical model, and the input parameters. The purpose of this analysis is to develop biosphere model parameter values related to radionuclide transport and accumulation in the environment. These parameters support calculations of radionuclide concentrations in the environmental media (e.g., soil, crops, animal products, and air) resulting from a given radionuclide concentration at the source of contamination (i.e., either in groundwater or volcanic ash). The analysis was performed in accordance with the TWP (BSC 2003 [163602]). This analysis develops values of parameters associated with many features, events, and processes (FEPs) applicable to the reference biosphere (DTN: M00303SEPFEPS2.000 [162452]), which are addressed in the biosphere model (BSC 2003 [160699]). The treatment of these FEPs is described in BSC (2003 [160699], Section 6.2). Parameter values developed in this report, and the related FEPs, are listed in Table 1-1. The relationship between the parameters and FEPs was based on a comparison of the parameter definition and the FEP descriptions as presented in BSC (2003 [160699], Section 6.2). The parameter values developed in this report support the biosphere model and are reflected in the TSPA through the biosphere dose conversion factors (BDCFs). Biosphere modeling focuses on radionuclides screened for the TSPA-LA (BSC 2002 [160059]). The same list of radionuclides is used in this analysis (Section 6.1.4). The analysis considers two human exposure scenarios (groundwater and volcanic ash) and climate change (Section 6.1.5). This analysis combines and revises two previous reports, ''Transfer Coefficient Analysis'' (CRWMS M&O 2000 [152435]) and ''Environmental Transport Parameter Analysis'' (CRWMS M&O 2001 [152434]), because the new ERMYN biosphere model requires a redefined set of input parameters. The scope of this analysis includes providing a technical basis for the selection of radionuclide- and element-specific biosphere parameters (except for Kd) that are important for calculating BDCFs based on the available radionuclide inventory abstraction data. The environmental transport parameter values were developed specifically for use in the biosphere model and may not be appropriate for other applications.

M. A. Wasiolek

2003-06-27T23:59:59.000Z

325

The Impact of Uncertain Physical Parameters on HVAC Demand Response  

SciTech Connect (OSTI)

HVAC units are currently one of the major resources providing demand response (DR) in residential buildings. Models of HVAC with DR function can improve understanding of its impact on power system operations and facilitate the deployment of DR technologies. This paper investigates the importance of various physical parameters and their distributions to the HVAC response to DR signals, which is a key step to the construction of HVAC models for a population of units with insufficient data. These parameters include the size of floors, insulation efficiency, the amount of solid mass in the house, and efficiency of the HVAC units. These parameters are usually assumed to follow Gaussian or Uniform distributions. We study the effect of uncertainty in the chosen parameter distributions on the aggregate HVAC response to DR signals, during transient phase and in steady state. We use a quasi-Monte Carlo sampling method with linear regression and Prony analysis to evaluate sensitivity of DR output to the uncertainty in the distribution parameters. The significance ranking on the uncertainty sources is given for future guidance in the modeling of HVAC demand response.

Sun, Yannan; Elizondo, Marcelo A.; Lu, Shuai; Fuller, Jason C.

2014-03-01T23:59:59.000Z

326

Status of three-neutrino oscillation parameters, circa 2013  

E-Print Network [OSTI]

The standard three-neutrino (3nu) oscillation framework is being increasingly refined by results coming from different sets of experiments, using neutrinos from solar, atmospheric, accelerator and reactor sources. At present, each of the known oscillation parameters [the two squared mass gaps (delta m^2, Delta m^2) and the three mixing angles (theta_12}, theta_13, theta_23)] is dominantly determined by a single class of experiments. Conversely, the unknown parameters [the mass hierarchy, the theta_23 octant and the CP-violating phase delta] can be currently constrained only through a combined analysis of various (eventually all) classes of experiments. In the light of recent new results coming from reactor and accelerator experiments, and of their interplay with solar and atmospheric data, we update the estimated N-sigma ranges of the known 3nu parameters, and revisit the status of the unknown ones. Concerning the hierarchy, no significant difference emerges between normal and inverted mass ordering. A slight overall preference is found for theta_23 in the first octant and for nonzero CP violation with sin delta < 0; however, for both parameters, such preference exceeds 1 sigma only for normal hierarchy. We also discuss the correlations and stability of the oscillation parameters within different combinations of data sets.

F. Capozzi; G. L. Fogli; E. Lisi; A. Marrone; D. Montanino; A. Palazzo

2014-05-05T23:59:59.000Z

327

LCLS CDR Chapter 5 - FEL Parameters and Performance  

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

5 5 FEL Parameters and Performance TECHNICAL SYNOPSIS The FEL parameter optimization and performance characterizations that are described in Chapter 5 are based on three-dimensional theory and computer models. The investigation led to a selection of the best parameters and to a study of the sensitivity to changes in values of accelerator components and beam characteristics and to unavoidable imperfections in the settings of the beam characteristics, magnetic and mechanical components and electron beam monitoring. The focusing of the electron beam plays an important role in the production of the FEL radiation. The LCLS undulator optics has been optimized in terms of its focusing lattice and strength. The electron optics consists of FODO cells; with cell lengths between 7.3 m and 7.5 m.

328

Hydrochemistry of selected parameters at the Raft River KGRA, Cassia  

Open Energy Info (EERE)

Hydrochemistry of selected parameters at the Raft River KGRA, Cassia Hydrochemistry of selected parameters at the Raft River KGRA, Cassia County, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Hydrochemistry of selected parameters at the Raft River KGRA, Cassia County, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: Low to moderate temperature (< 150 0C) geothermal fluids are being developed in the southern Raft River Valley of Idaho. Five deep geothermal wells ranging in depth from 4911 feet to 6543 feet (1490 to 1980 meters) and two intermediate depth (3858 feet or 1170 meters) injection wells have been drilled within the Raft River KGRA. Several shallower (1423-500 feet or 430-150 meters) wells have also been constructed to monitor the environmental effects of geothermal development of the

329

Impact parameter dependent colour glass condensate dipole model  

E-Print Network [OSTI]

We show that the colour glass condensate dipole model of Iancu, Itakura and Munier, improved to include the impact parameter dependence, gives a good fit to the total gamma* p cross section measured at HERA if the anomalous dimension at the saturation scale, gamma_s, is treated as a free parameter. We find that the optimum value of gamma_s is close to the value determined from numerical solution of the Balitsky-Kovchegov equation. We compare predictions of the model to data on exclusive diffractive vector meson production and deeply virtual Compton scattering at HERA. The model is found to be deficient for observables sensitive to very small dipole sizes, where an alternative model with explicit DGLAP evolution performs better. We determine the impact parameter dependent saturation scale and comment on the lack of conclusive evidence for perturbative saturation at HERA.

Watt, G

2007-01-01T23:59:59.000Z

330

Solar Model Parameters and Direct Measurements of Solar Neutrino Fluxes  

E-Print Network [OSTI]

We explore a novel possibility of determining the solar model parameters, which serve as input in the calculations of the solar neutrino fluxes, by exploiting the data from direct measurements of the fluxes. More specifically, we use the rather precise value of the $^8B$ neutrino flux, $\\phi_B$ obtained from the global analysis of the solar neutrino and KamLAND data, to derive constraints on each of the solar model parameters on which $\\phi_B$ depends. We also use more precise values of $^7Be$ and $pp$ fluxes as can be obtained from future prospective data and discuss whether such measurements can help in reducing the uncertainties of one or more input parameters of the Standard Solar Model.

Abhijit Bandyopadhyay; Sandhya Choubey; Srubabati Goswami; S. T. Petcov

2006-08-30T23:59:59.000Z

331

Cosmological Parameters From Supernovae Associated With Gamma-ray Bursts  

E-Print Network [OSTI]

We report estimates of the cosmological parameters $\\Omega_m$ and $\\Omega_{\\Lambda}$ obtained using supernovae (SNe) associated with gamma-ray bursts (GRBs) at redshifts up to 0.606. Eight high-fidelity GRB-SNe with well-sampled light curves across the peak are used. We correct their peak magnitudes for a luminosity-decline rate relation to turn them into accurate standard candles with dispersion $\\sigma = 0.18$ mag. We also estimate the peculiar velocity of the host galaxy of SN 1998bw, using constrained cosmological simulations. In a flat universe, the resulting Hubble diagram leads to best-fit cosmological parameters of $(\\Omega_m, \\Omega_{\\Lambda}) = (0.52^{+0.34}_{-0.31},0.48^{+0.31}_{-0.34})$. This exploratory study suggests that GRB-SNe can potentially be used as standardizable candles to high redshifts to measure distances in the universe and constrain cosmological parameters.

Li, Xue; Wojtak, Rados?aw

2014-01-01T23:59:59.000Z

332

Study of parameters affecting enhanced coal bed methane  

SciTech Connect (OSTI)

Laboratory and field scale trials conducted so far indicate that injection of CO{sub 2} and N{sub 2} into deep coalbeds has the potential to enhance coalbed methane (ECBM) recovery while simultaneously sequestering CO{sub 2}. The work has identified that the fundamental processes involved in CO{sub 2} sequestration/CBM recovery in deep coalbeds are not fully understood and further research is needed to advance this technology. ECBM is affected by several parameters; prominent among them are coal characteristics, in-situ conditions prevailing in deep coalbeds, and changes arising from the interaction of coal with various fluids. These parameters do not act independently, thereby making it difficult to isolate their impacts separately. An attempt has been made in this article to classify these parameters and understand their role in ECBM. Past work in this area is reviewed and the future work that is critical for an improved understanding of ECBM recovery is discussed.

Katyal, S.; Valix, M.; Thambimuthu, K. [University of Sydney, Sydney, NSW (Australia). Dept. of Chemical Engineering

2007-02-15T23:59:59.000Z

333

Detecting filaments at z=3  

E-Print Network [OSTI]

We present the detection of a filament of Ly-alpha emitting galaxies in front of the quasar Q1205-30 at z=3.04 based on deep narrow band imaging and follow-up spectroscopy obtained at the ESO NTT and VLT. We argue that Ly-alpha selection of high redshift galaxies with relatively modest amounts of observing time allows the detection and redshift measurement of galaxies with sufficiently high space densities that we can start to map out the large scale structure at z=2-3 directly. Even more interesting is it that a 3D map of the filaments will provide a new cosmological test for the value of the cosmological constant, Omega_Lambda.

J. P. U. Fynbo; P. Moller; B. Thomsen

2001-10-29T23:59:59.000Z

334

Detecting determinism from point processes  

Science Journals Connector (OSTI)

The detection of a nonrandom structure from experimental data can be crucial for the classification, understanding, and interpretation of the generating process. We here introduce a rank-based nonlinear predictability score to detect determinism from point process data. Thanks to its modular nature, this approach can be adapted to whatever signature in the data one considers indicative of deterministic structure. After validating our approach using point process signals from deterministic and stochastic model dynamics, we show an application to neuronal spike trains recorded in the brain of an epilepsy patient. While we illustrate our approach in the context of temporal point processes, it can be readily applied to spatial point processes as well.

Ralph G. Andrzejak; Florian Mormann; Thomas Kreuz

2014-12-02T23:59:59.000Z

335

Method for detecting toxic gases  

DOE Patents [OSTI]

A method is disclosed which is capable of detecting low concentrations of a pollutant or other component in air or other gas. This method utilizes a combination of a heating filament having a catalytic surface of a noble metal for exposure to the gas and producing a derivative chemical product from the component. An electrochemical sensor responds to the derivative chemical product for providing a signal indicative of the product. At concentrations in the order of about 1-100 ppm of tetrachloroethylene, neither the heating filament nor the electrochemical sensor is individually capable of sensing the pollutant. In the combination, the heating filament converts the benzyl chloride to one or more derivative chemical products which may be detected by the electrochemical sensor. 6 figures.

Stetter, J.R.; Zaromb, S.; Findlay, M.W. Jr.

1991-10-08T23:59:59.000Z

336

Multiplex detection of agricultural pathogens  

DOE Patents [OSTI]

Described are kits and methods useful for detection of seven agricultural pathogens (BPSV; BHV; BVD; FMDV; BTV; SVD; and VESV) in a sample. Genomic sequence information from 7 agricultural pathogens was analyzed to identify signature sequences, e.g., polynucleotide sequences useful for confirming the presence or absence of a pathogen in a sample. Primer and probe sets were designed and optimized for use in a PCR based, multiplexed Luminex assay to successfully identify the presence or absence of pathogens in a sample.

McBride, Mary Teresa (Brentwood, CA); Slezak, Thomas Richard (Livermore, CA); Messenger, Sharon Lee (Kensington, CA)

2010-09-14T23:59:59.000Z

337

Detection of a concealed object  

DOE Patents [OSTI]

Disclosed are systems, methods, devices, and apparatus to determine if a clothed individual is carrying a suspicious, concealed object. This determination includes establishing data corresponding to an image of the individual through interrogation with electromagnetic radiation in the 200 MHz to 1 THz range. In one form, image data corresponding to intensity of reflected radiation and differential depth of the reflecting surface is received and processed to detect the suspicious, concealed object.

Keller, Paul E. (Richland, WA); Hall, Thomas E. (Kennewick, WA); McMakin, Douglas L. (Richland, WA)

2008-04-29T23:59:59.000Z

338

Elastic parameters of a water-based magnetic liquid  

SciTech Connect (OSTI)

The authors repeat studies on the acoustic parameters of water-based magnetic liquids to find a better method of measuring the speed and to cover a wider concentration range. The pulse method is used, as it works well in measuring the speed of sound in ordinary liquids. A figure shows the block diagram. Figures show the dependence of magnetization on field strength and temperature dependence of ultrasound. The speeds measured for the specimens show that the parameter obtained remains constant within the errors of measurement in longitudinal and transverse fields.

Berkovskii, B.M.

1986-07-01T23:59:59.000Z

339

Measurement of parameters in Indus-2 synchrotron radiation source  

SciTech Connect (OSTI)

The paper presents the measurement of optics parameters in Indus-2 synchrotron radiation source, which include betatron tune, beta function, dispersion function, natural chromaticity, corrected chromaticity, central RF frequency, momentum compaction factor, and linear betatron coupling. Two methods were used for beta function measurement; a conventional quadrupole scan method and a method using the fitting of the orbit response matrix. A robust Levenberg-Marquardt algorithm was used for nonlinear least square fitting of the orbit response matrix. In this paper, detailed methods for the parameter measurements are described. The measured results are discussed and compared with the theoretical values obtained using accelerator simulation code Accelerator Toolbox in MATLAB.

Ghodke, A. D.; Husain, Riyasat; Kumar, Pradeep; Yadav, Surendra; Puntambekar, T. A. [Raja Ramanna Centre for Advanced Technology, 452013, Indore (India)

2012-10-15T23:59:59.000Z

340

Optimisation of operating parameters during the accumulator charging process  

Science Journals Connector (OSTI)

The aim of this work involving the charging process of hydro-pneumatic accumulators in the hydrostatic power transmission system is to propose ''optimal'' operating parameters of the control system, which will allow low petrol consumption, low emission of toxic fumes and verification of the proposed model. As a tool for the simulation work, a simulation application from the Simulink library for a Matlab environment was used. As a result of the research, characteristics of the process quantities, which confirm correctness of the proposed operating parameters of the control system were obtained. In addition, the quantitative and qualitative identification of the presented model was conducted.

Zbigniew Pawelski; Sebastian Wittich

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

New energy and exergy parameters for geothermal district heating systems  

Science Journals Connector (OSTI)

This paper introduces four new parameters, namely energetic renewability ratio, exergetic renewability ratio, energetic reinjection ratio, and exergetic reinjection ratio for geothermal district energy systems. These parameters are applied to Edremit Geothermal District Heating System (GDHS) in Balikesir, Turkey for daily, monthly and yearly assessments and their variations are studied. In addition, the actual data are regressed to obtain some applied correlations for practical use. Some results follow: (i) Both energetic and exergetic renewability ratios decrease with decreasing temperature in heating season and increasing temperature in the summer. (ii) Both energetic and exergetic reinjection ratios increase with decreasing temperature for heating season and increase with increasing temperature for summer season.

C. Coskun; Zuhal Oktay; I. Dincer

2009-01-01T23:59:59.000Z

342

Parameter network as a means for driving problem solving process  

Science Journals Connector (OSTI)

Driving problem solving process in R&D departments rely on a long historical set of experiences gained through practices, methods acquisition and continuous improvement. This improvement always needs to be enhanced by integrating new paradigms in accordance with global industrial situation. This situation is currently turned towards innovation concerns and among other imposes R&D departments to improve the robustness of their decisions. We propose to demonstrate how R&D choices can be driven by representing problems through a parameter network and extract from this parameter network a set of key contradictions to be solved to drive R&D decisions inventively.

Denis Cavallucci; Thomas Eltzer

2007-01-01T23:59:59.000Z

343

Parameters for landfill-liner leak-rate model  

E-Print Network [OSTI]

PARAMETERS FOR LANDFILL-LINER LEAK-RATE MODEL A Thesis by STEVEN CARLTON BAHRT Submitted to the Graduate College of Texas ASM University i n partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1985 Major... Subject: Civil Engineering PARAMETERS FOR LANDFILL-LINER LEAK-RATE MODEL A Thesis by STEVEN CARLTON BAHRT Approved as to style and content by: Rob nt Lytto (Co-Cha' man of C mmittee) ayne Dunl p (Member) Kink W. Brown (Co-Chairman of Committee...

Bahrt, Steven Carlton

2012-06-07T23:59:59.000Z

344

High Resolution Parameter Space from a Two Level Model on Semi-Insulating GaAs  

E-Print Network [OSTI]

Semi-insulating Gallium Arsenide (SI-GaAs) samples experimentally show, under high electric fields and even at room temperature, negative differential conductivity in N-shaped form (NNDC). Since the most consolidated model for n-GaAs, namely, "the model", proposed by E. Scholl was not capable to generate the NNDC curve for SI-GaAs, in this work we proposed an alternative model. The model proposed, "the two-valley model" is based on the minimal set of generation recombination equations for two valleys inside of the conduction band, and an equation for the drift velocity as a function of the applied electric field, that covers the physical properties of the nonlinear electrical conduction of the SI-GaAs system. The "two valley model" was capable to generate theoretically the NNDC region for the first time, and with that, we were able to build a high resolution parameter-space of the periodicity (PSP) using a Periodicity-Detection (PD) routine. In the parameter space were observed self-organized periodic structu...

da Silva, S L; de Oliveira, A G; Ribeiro, G M; da Silva, R L

2014-01-01T23:59:59.000Z

345

Covariance of dark energy parameters and sound speed constraints from large HI surveys  

E-Print Network [OSTI]

An interesting probe of the nature of dark energy is the measure of its sound speed, $c_s$. We review the significance for constraining sound speed models of dark energy using large neutral hydrogen (HI) surveys with the Square Kilometre Array (SKA). Our analysis considers the effect on the sound speed measurement that arises from the covariance of $c_s$ with the dark energy density, $\\Omega_\\LLambda$, and a time-varying equation of state, $w(a)=w_0+(1-a)w_a$. We find that the approximate degeneracy between dark energy parameters that arises in power spectrum observations is lifted through redshift tomography of the HI-galaxy angular power spectrum, resulting in sound speed constraints that are not severely degraded. The cross-correlation of the galaxy and the integrated Sachs-Wolfe (ISW) effect spectra contributes approximately 10 percent of the information that is needed to distinguish variations in the dark energy parameters, and most of the discriminating signal comes from the galaxy auto-correlation spectrum. We also find that the sound speed constraints are weakly sensitive to the HI bias model. These constraints do not improve substantially for a significantly deeper HI survey since most of the clustering sensitivity to sound speed variations arises from $z \\lsim 1.5$. A detection of models with sound speeds close to zero, $c_s \\lsim 0.01,$ is possible for dark energy models with $w\\gsim -0.9$.

A. Torres-Rodriguez; C. M. Cress; K. Moodley

2008-04-15T23:59:59.000Z

346

Semi autonomous mine detection system  

SciTech Connect (OSTI)

CMMAD is a risk reduction effort for the AMDS program. As part of CMMAD, multiple instances of semi autonomous robotic mine detection systems were created. Each instance consists of a robotic vehicle equipped with sensors required for navigation and marking, a countermine sensors and a number of integrated software packages which provide for real time processing of the countermine sensor data as well as integrated control of the robotic vehicle, the sensor actuator and the sensor. These systems were used to investigate critical interest functions (CIF) related to countermine robotic systems. To address the autonomy CIF, the INL developed RIK was extended to allow for interaction with a mine sensor processing code (MSPC). In limited field testing this system performed well in detecting, marking and avoiding both AT and AP mines. Based on the results of the CMMAD investigation we conclude that autonomous robotic mine detection is feasible. In addition, CMMAD contributed critical technical advances with regard to sensing, data processing and sensor manipulation, which will advance the performance of future fieldable systems. As a result, no substantial technical barriers exist which preclude from an autonomous robotic perspective the rapid development and deployment of fieldable systems.

Douglas Few; Roelof Versteeg; Herman Herman

2010-04-01T23:59:59.000Z

347

Order Parameter Profile of Perfluorinated Chains in a Lamellar Phase  

Science Journals Connector (OSTI)

The particular NMR method, 13C-detected, 19F-decoupled separated-local-field (SLF) spectroscopy, provides the dipolar splitting of each 13C spin to its 19F neighbors. ... Thus, it might turn out to be useful to provide another measurement of the same quantity, though via another method, separated-local-field (SLF) NMR spectroscopy,4,5 and in another phase of the same surfactant. ... These two decoupling schemes are combined into a two-dimensional (2D) 13C detected?19F decoupled SLF experiment that is explained in the next section. ...

S. V. Dvinskikh; I. Fur

2000-01-19T23:59:59.000Z

348

System parameters and measurement instrument parameters are not separately observable: Relational mass is observable while absolute mass is not  

E-Print Network [OSTI]

A brief summary of the objections to the relational nature of inertial mass, gravitational mass and electric charge is presented. The objections are refuted by showing that the measurement process of comparing an instrument reference clock and a reference rod both obeying the laws of physics to a system obeying the same laws of physics results in relational quantities: inertial mass, gravitational mass and electric charge appear only as ratios. This means that scaling of the absolute inertial mass of every object in the universe by the same factor is unobservable (likewise for gravitational mass and electric charge). It is shown that the measurement process does not separate the instrument parameters from the system parameters. Instead a measurement produces functions of fundamental, dimensionless parameters such as the fine structure constant, electron-proton mass ratio and the proton gyro-magnetic factor. It is shown that the measurement of Planck's constant also results in such a function of these dimensio...

Holt, Craig R

2014-01-01T23:59:59.000Z

349

Detecting Cocaine Use with Wearable Electrocardiogram Sensors Detecting Cocaine Use with Wearable  

E-Print Network [OSTI]

with Wearable Electrocardiogram Sensors Background Cocaine - Short term physiological effects T wave height al., Hale et al.,] #12;Detecting Cocaine Use with Wearable Electrocardiogram Sensors BackgroundDetecting Cocaine Use with Wearable Electrocardiogram Sensors Detecting Cocaine Use with Wearable

Massachusetts at Amherst, University of

350

Thermophoresis and its thermal parameters for aerosol collection  

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

Thermophoresis and its thermal parameters for aerosol collection Thermophoresis and its thermal parameters for aerosol collection Title Thermophoresis and its thermal parameters for aerosol collection Publication Type Journal Article Year of Publication 2007 Authors Huang, Zhuo, Michael G. Apte, and Lara A. Gundel Journal U.S. Department of Energy Journal of Undergraduate Research Volume 7 Pagination 37-42 Abstract The particle collection effi ciency of a prototype environmental tobacco smoke (ETS) sampler based on the use of thermophoresis is determined by optimizing the operational voltage that determines its thermal gradient. This sampler's heating element was made of three sets of thermophoretic (TP) wires 25µm in diameter suspended across a channel cut in a printed circuit board and mounted with collection surfaces on both sides. The separation between the heating element and the room temperature collection surface was determined in a numerical simulation based on the Brock-Talbot model. Other thermal parameters of this TP ETS sampler were predicted by the Brock-Talbot model for TP deposition. From the normalized results the optimal collection ratio was expressed in terms of operational voltage and fi lter mass. Prior to the Brock-Talbot model simulation for this sampler, 1.0V was used arbitrarily. The operational voltage was raised

351

Active Exploration for Robot Parameter Selection in Episodic Reinforcement Learning  

E-Print Network [OSTI]

Active Exploration for Robot Parameter Selection in Episodic Reinforcement Learning Oliver Kroemer-dimensional. Given the inherent exploration-exploitation dilemma of the problem, we propose treating in continuous multi- dimensional spaces. The approach is based on Gaussian process regression, which can

352

Using HYTECH to Synthesize Control Parameters for a Steam Boiler ?;??  

E-Print Network [OSTI]

Using HYTECH to Synthesize Control Parameters for a Steam Boiler ?;?? Thomas A. Henzinger 1 Howard model a steam­boiler control system using hybrid au­ tomata. We provide two abstracted linear models of the nonlinear be­ havior of the boiler. For each model, we define and verify a controller that maintains

Henzinger, Thomas A.

353

Using HYTECH to Synthesize Control Parameters for a Steam Boiler? ??  

E-Print Network [OSTI]

Using HYTECH to Synthesize Control Parameters for a Steam Boiler? ?? Thomas A. Henzinger1 Howard model a steam-boiler control system using hybrid au- tomata. We provide two abstracted linear models of the nonlinear be- havior of the boiler. For each model, we de ne and verify a controller that maintains the safe

Henzinger, Thomas A.

354

Parameter Estimation of the Hybrid Censored Log-Normal Distribution  

E-Print Network [OSTI]

, Pin 560035, India. SQC & OR Unit, Indian Statistical Institute, 203 B.T. Road, Kolkata, Pin 700108, India. Corresponding author, e-mail: bis@isical.ac.in Department of Mathematics and Statistics, Indian of the exponential parameter. Drapper and Guttmann [7] also considered the same problem but from the Bayesian point

Kundu, Debasis

355

Multi-parameter estimating photometric redshifts with artificial neural networks  

E-Print Network [OSTI]

We calculate photometric redshifts from the Sloan Digital Sky Survey Data Release 2 Galaxy Sample using artificial neural networks (ANNs). Different input patterns based on various parameters (e.g. magnitude, color index, flux information) are explored and their performances for redshift prediction are compared. For ANN technique, any parameter may be easily incorporated as input, but our results indicate that using dereddening magnitude produces photometric redshift accuracies often better than the Petrosian magnitude or model magnitude. Similarly, the model magnitude is also superior to Petrosian magnitude. In addition, ANNs also show better performance when the more effective parameters increase in the training set. Finally, the method is tested on a sample of 79, 346 galaxies from the SDSS DR2. When using 19 parameters based on the dereddening magnitude, the rms error in redshift estimation is sigma(z)=0.020184. The ANN is highly competitive tool when compared with traditional template-fitting methods where a large and representative training set is available.

Lili Li; Yanxia Zhang; Yongheng Zhao; Dawei Yang

2006-12-28T23:59:59.000Z

356

Measurement of the Michel parameter rho in muon decay  

E-Print Network [OSTI]

The TWIST Collaboration has measured the Michel parameter rho in normal muon decay,u+ -> e+VeVu. In the standard model of particle physics,rho = 3/4. Deviations from this value require mixing of left- and right-handed muon and electron couplings...

Musser, James Raymond

2006-04-12T23:59:59.000Z

357

Wind parameters extraction from aircraft trajectories C. Hurtera,  

E-Print Network [OSTI]

Wind parameters extraction from aircraft trajectories C. Hurtera, , R. Alligiera,b , D. Gianazzaa traffic controllers need to know the current wind magnitude and direction since they impact every flying vessel. The wind may accel- erate or slow down an aircraft, depending on its relative direction

Paris-Sud XI, Université de

358

HANSEN SOLUBILITY PARAMETERS FOR A CARBON FIBER/EPOXY COMPOSITE  

E-Print Network [OSTI]

HANSEN SOLUBILITY PARAMETERS FOR A CARBON FIBER/EPOXY COMPOSITE Hélène Launay* , Charles Medom demonstrated as appropriate for the study of interactions between the materials in composite carbon fiber. INTRODUCTION Fiber-reinforced composites are used in a wide range of applications where high stiffness

359

Accelerated gravitational-wave parameter estimation with reduced order modeling  

E-Print Network [OSTI]

Inferring the astrophysical parameters of coalescing compact binaries is a key science goal of the upcoming advanced LIGO-Virgo gravitational-wave detector network and, more generally, gravitational-wave astronomy. However, current parameter estimation approaches for such scenarios can lead to computationally intractable problems in practice. Therefore there is a pressing need for new, fast and accurate Bayesian inference techniques. In this letter we demonstrate that a reduced order modeling approach enables rapid parameter estimation studies. By implementing a reduced order quadrature scheme within the LIGO Algorithm Library, we show that Bayesian inference on the 9-dimensional parameter space of non-spinning binary neutron star inspirals can be sped up by a factor of 30 for the early advanced detectors' configurations. This speed-up will increase to about $150$ as the detectors improve their low-frequency limit to 10Hz, reducing to hours analyses which would otherwise take months to complete. Although these results focus on gravitational detectors, the techniques are broadly applicable to any experiment where fast Bayesian analysis is desirable.

Priscilla Canizares; Scott E. Field; Jonathan Gair; Vivien Raymond; Rory Smith; Manuel Tiglio

2014-04-24T23:59:59.000Z

360

Identification of parameters in building concentration dispersion model  

E-Print Network [OSTI]

1 Identification of parameters in building concentration dispersion model D. Calogine*,1 , H. Boyer, 17, 11, 20] use macroscopic models, which represent room or entire building by a single node Abstract The aim of this work is to simulate the pollutants transport in buildings. Focusing mainly

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "detection un parameter" 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

Effective Parameters in Axial Injection Suspension Plasma Spray Process  

E-Print Network [OSTI]

Effective Parameters in Axial Injection Suspension Plasma Spray Process of Alumina-structured coatings with metastable phases using significantly smaller particles as compared to conventional thermal, an alumina/ 8 wt.% yttria-stabilized zirconia was deposited by axial injection SPS process. The effects

Medraj, Mamoun

362

Simulator Building and Parameter Optimization of an Autonomous Robotic Fish  

E-Print Network [OSTI]

Simulator Building and Parameter Optimization of an Autonomous Robotic Fish Jindong Liu, Huosheng@essex.ac.uk Abstract-- This paper presents a short review on the research of robotic fish. A simulation environment for robotic fish is built and the experiment shows that it is a convenient way to make research on the robotic

Hu, Huosheng

363

Accelerated gravitational-wave parameter estimation with reduced order modeling  

E-Print Network [OSTI]

Inferring the astrophysical parameters of coalescing compact binaries is a key science goal of the upcoming advanced LIGO-Virgo gravitational-wave detector network and, more generally, gravitational-wave astronomy. However, current parameter estimation approaches for such scenarios can lead to computationally intractable problems in practice. Therefore there is a pressing need for new, fast and accurate Bayesian inference techniques. In this letter we demonstrate that a reduced order modeling approach enables rapid parameter estimation studies. By implementing a reduced order quadrature scheme within the LIGO Algorithm Library, we show that Bayesian inference on the 9-dimensional parameter space of non-spinning binary neutron star inspirals can be sped up by a factor of 30 for the early advanced detectors' configurations. This speed-up will increase to about $150$ as the detectors improve their low-frequency limit to 10Hz, reducing to hours analyses which would otherwise take months to complete. Although these results focus on gravitational detectors, the techniques are broadly applicable to any experiment where fast Bayesian analysis is desirable.

Priscilla Canizares; Scott E. Field; Jonathan Gair; Vivien Raymond; Rory Smith; Manuel Tiglio

2015-01-27T23:59:59.000Z

364

Quartic Parameters for Acoustic Applications of Lattice Boltzmann Scheme  

E-Print Network [OSTI]

Quartic Parameters for Acoustic Applications of Lattice Boltzmann Scheme Fran¸cois Dubois ab Abstract. With the Taylor expansion method, we show that it is possible to improve the lattice Boltzmann lattice Boltzmann scheme. Various numerical tests support the coherence of this approach. Keywords: Taylor

365

Impact parameter dependent color glass condensate dipole model  

SciTech Connect (OSTI)

We show that the color glass condensate dipole model of Iancu, Itakura, and Munier, improved to include the impact parameter dependence, gives a good fit to the total {gamma}*p cross section measured at HERA if the anomalous dimension at the saturation scale, {gamma}{sub s}, is treated as a free parameter. We find that the optimum value of {gamma}{sub s}=0.46 is close to the value determined from numerical solution of the Balitsky-Kovchegov equation. The impact parameter dependent saturation scale is generally less than 0.5 GeV{sup 2} in the HERA kinematic regime for the most relevant impact parameters b{approx}2-3 GeV{sup -1}. We compare predictions of the model to data on the longitudinal and heavy flavour structure functions, exclusive diffractive vector meson production, and deeply virtual Compton scattering at HERA. The model is found to be deficient for observables sensitive to moderately small dipole sizes, where an alternative model with explicit Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution performs better. The energy dependence of exclusive diffractive processes is shown to provide an important discriminator between different dipole model cross sections.

Watt, G. [Department of Physics and Astronomy, University College London, WC1E 6BT (United Kingdom); Kowalski, H. [Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg (Germany)

2008-07-01T23:59:59.000Z

366

Impact parameter dependent colour glass condensate dipole model  

E-Print Network [OSTI]

We show that the colour glass condensate dipole model of Iancu, Itakura and Munier, improved to include the impact parameter dependence, gives a good fit to the total gamma* p cross section measured at HERA if the anomalous dimension at the saturation scale, gamma_s, is treated as a free parameter. We find that the optimum value of gamma_s = 0.46 is close to the value determined from numerical solution of the Balitsky-Kovchegov equation. The impact parameter dependent saturation scale is generally less than 0.5 GeV^2 in the HERA kinematic regime for the most relevant impact parameters b ~ 2-3 GeV^{-1}. We compare predictions of the model to data on the longitudinal and heavy flavour structure functions, exclusive diffractive vector meson production and deeply virtual Compton scattering at HERA. The model is found to be deficient for observables sensitive to moderately small dipole sizes, where an alternative model with explicit DGLAP evolution performs better. The energy dependence of exclusive diffractive processes is shown to provide an important discriminator between different dipole model cross sections.

G. Watt; H. Kowalski

2007-12-17T23:59:59.000Z

367

Impact parameter dependent color glass condensate dipole model  

Science Journals Connector (OSTI)

We show that the color glass condensate dipole model of Iancu, Itakura, and Munier, improved to include the impact parameter dependence, gives a good fit to the total ?*p cross section measured at HERA if the anomalous dimension at the saturation scale, ?s, is treated as a free parameter. We find that the optimum value of ?s=0.46 is close to the value determined from numerical solution of the Balitsky-Kovchegov equation. The impact parameter dependent saturation scale is generally less than 0.5??GeV2 in the HERA kinematic regime for the most relevant impact parameters b?23??GeV-1. We compare predictions of the model to data on the longitudinal and heavy flavour structure functions, exclusive diffractive vector meson production, and deeply virtual Compton scattering at HERA. The model is found to be deficient for observables sensitive to moderately small dipole sizes, where an alternative model with explicit Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution performs better. The energy dependence of exclusive diffractive processes is shown to provide an important discriminator between different dipole model cross sections.

G. Watt and H. Kowalski

2008-07-18T23:59:59.000Z

368

ANISOTROPY OF SOURCE PARAMETERS FROM INDUCED MICROSEISMICITY Peter Starzec1  

E-Print Network [OSTI]

distributions of shear displacement at the source of microearthquakes induced by hydraulic fracturing were relies on the use of hydraulic fracturing to enhance rock mass permeability through the creation). Methods for calculation of the source parameters of seismic events induced by hydraulic fracturing

369

HEART RATE VARIABILITY AS DETERMINISM WITH JUMP STOCHASTIC PARAMETERS  

E-Print Network [OSTI]

HEART RATE VARIABILITY AS DETERMINISM WITH JUMP STOCHASTIC PARAMETERS JIONGXUAN ZHENG, JOE SKUFCA, AND ERIK BOLLT§ Abstract. We use measured heart rate information (RR intervals) to develop a one with persistence which causes the heart rate and rhythm system to wander about a bifurcation point. We propose

Bollt, Erik

370

Automatic selection of tuning parameters in wind power prediction  

E-Print Network [OSTI]

Automatic selection of tuning parameters in wind power prediction Lasse Engbo Christiansen (lec Report number: IMM-Technical Report-2007-12 Project title: Intelligent wind power prediction systems PSO The wind power forecasting system developed at DTU - the Wind Power Prediction Tool (WPPT) - predicts

371

Architecture-driven reliability optimization with uncertain model parameters  

Science Journals Connector (OSTI)

It is currently considered good software engineering practice to decide between design alternatives based on quantitative architecture evaluations for different quality attributes, such as reliability and performance. However, the results of these quantitative ... Keywords: Architecture optimization, Monte-Carlo simulation, Parameter uncertainty, Probabilistic quality prediction, Reliability

Indika Meedeniya; Aldeida Aleti; Lars Grunske

2012-10-01T23:59:59.000Z

372

Large Scale Parameter Sweep Studies Using Distributed Matlab  

E-Print Network [OSTI]

1 Large Scale Parameter Sweep Studies Using Distributed Matlab Vikas Argod Graduate Assistant 225. The implementation is done in Matlab. The discussion extends to large scale problems of similar type using distributed matlab. Use of distributed matlab reduced computation time significantly

Bjørnstad, Ottar Nordal

373

COMPLETE PARAMETER IDENTIFICATION OF A ROBOT FROM PARTIAL POSE INFORMATION  

E-Print Network [OSTI]

for a variety of robot applications such as pick and place, spray painting, and welding. In these operationsCOMPLETE PARAMETER IDENTIFICATION OF A ROBOT FROM PARTIAL POSE INFORMATION Ambarish Goswami Arthur Quaid Michael Peshkin Abstract The absolute accuracy of a robot depends to a large extent

MacIver, Malcolm A.

374

Low-Energy Neutron-Neutron Scattering Parameters  

Science Journals Connector (OSTI)

A precise evaluation of the spectrum in the reaction ?-+D?2n+?, including final-state interactions is presented with a view of determining the neutron-neutron scattering length. Approximations of previous calculations are examined and avoided where their effect is found to be significant. Sufficiently accurate experiments should be capable of distinguishing this parameter to an error of 1 F.

Myron Bander

1964-06-08T23:59:59.000Z

375

The Distributed Stigmergic Algorithm for Multi-parameter Optimization  

E-Print Network [OSTI]

Stig- mergy Algorithm (MASA) for minimizing the power losses in an electric motor by optimizing to the electric motor design in Section 5. Finally, we conclude the paper in Section 6. 2 The Ant Stigmergy the independent geometrical parameters of the ro- tor and the stator. The efficiency of the algorithm

Silc, Jurij

376

Numerical Calculations of Steady State Microwave Plasma Parameters  

E-Print Network [OSTI]

eV of energy per ionization to the background neutrals. The neutral gas is assumed to be hydrogen was motivated by a desire to predict the plasma parameters in the ELMO Bumpy Torus presently under construction is approximated by a complicated analytic function of electron energy. The electrons and ions are assumed

Sprott, Julien Clinton

377

Application of lumped-parameter Lars Bo Ibsen  

E-Print Network [OSTI]

Department of Civil Engineering Division of Water and Soil Application of lumped-parameter models by Lars Bo journals. Technical Memoranda are produced to enable the preliminary dissemination of scientific work references are given to publications of this kind. Contract Reports are produced to report scientific work

378

Simple neutrino mass matrix with only two free parameters  

E-Print Network [OSTI]

A simple form of neutrino mass matrix which has only two free parameters is proposed from a phenomenological point of view. Using this mass matrix, we succeed to reproduce all the observed values for the MNS lepton mixing angles and the neutrino mass squared difference ratio. Our model also predicts $\\delta_{\

Hiroyuki Nishiura; Takeshi Fukuyama

2014-05-10T23:59:59.000Z

379

Direct estimation of Patlak parameters from list mode pet data  

Science Journals Connector (OSTI)

We describe a method to directly estimate Patlak parameters from list mode data. Based on the Patlak model, the uptake rate function of each voxel can be written as a linear combination of the blood input function and its integral, with the slope and ... Keywords: FDG PET, PET, incremental gradient, list mode, the Patlak Model

Quanzheng Li; Richard M. Leahy

2009-06-01T23:59:59.000Z

380

Canonical Ridge Analysis with Ridge Parameter Optimization Description of slides  

E-Print Network [OSTI]

Canonical Ridge Analysis with Ridge Parameter Optimization Description of slides Finn š Arup Nielsen May 25, 1998 1 First slide: The formula and an example The first slide shows a simplification is yellow/red for positive and blue for negative. Black is zero. 2 Second slide: Pros and cons The second

Nielsen, Finn ?rup

Note: This page contains sample records for the topic "detection un parameter" 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

Probabilistic prediction of green roof energy performance under parameter uncertainty  

Science Journals Connector (OSTI)

Abstract Studies on the quantification of energy benefits of a green roof have so far treated its parameter values only deterministically. In reality, however, these values may scatter over different ranges due to the inherent variation of vegetation and soil properties and also because of the unavoidable deviation from designated values during construction and/or actual operation of a green roof. Under such parameter uncertainty, green roof performance can no longer be predicted deterministically but rather probabilistically. The present study attempts to integrate the whole building energy simulation with a parametric uncertainty analysis. An example office building is used to systematically examine how the cooling and heating energy demands can be reduced by a green roof that replaces a conventional roof, when values of the most significant green roof parameters determined by sensitivity analysis are treated as random variables with prescribed probability distributions. An ensemble of green roof configurations is generated using Monte Carlo simulation with a Latin hypercube sampling technique. The coefficient of variation of the calculated energy savings is found almost linearly related to (with a slope of about 0.4) that of green roof parameters. Finally, implications of probabilistic energy analysis for more reliable green roof design are emphasized.

Min (Max) Liu

2014-01-01T23:59:59.000Z

382

Optimization of Structural Dynamic Behaviour Based on Effective Modal Parameters  

E-Print Network [OSTI]

Optimization of Structural Dynamic Behaviour Based on Effective Modal Parameters S. Besset, L. J Optimization of complex structures often leads to high calculation costs. In- deed, the structure has to be frequently reanalysed in order to update the opti- mization criteriums. We propose an optimization method

Paris-Sud XI, Université de

383

23rd March 2012 Parameter Synthesis for Hierarchical  

E-Print Network [OSTI]

CS Seminar 23rd March 2012 Parameter Synthesis for Hierarchical Concurrent Real-Time Systems.-S. Dong, L. Fribourg, Y. Liu, R. Soulat, J. Sun ?tienne ANDR? (LIPN) Parametric Stateful Timed CSP 23rd) Parametric Stateful Timed CSP 23rd March 2012 2 / 49 #12;Introduction Context: Model Checking Timed Systems

André, ?tienne

384

Decoupling Interrelated Parameters for Designing High Performance Thermoelectric Materials  

Science Journals Connector (OSTI)

Decoupling Interrelated Parameters for Designing High Performance Thermoelectric Materials ... Solution Processed Cu2CoSnS4 Thin Films for Photovoltaic Applications ... Earth abundant alternative chalcopyrite Cu2CoSnS4 (CCTS) thin films were deposited by a facile solgel process onto larger substrates. ...

Chong Xiao; Zhou Li; Kun Li; Pengcheng Huang; Yi Xie

2014-02-11T23:59:59.000Z

385

PARAMETER ESTIMATION BASED MODELS OF WATER SOURCE HEAT PUMPS  

E-Print Network [OSTI]

PARAMETER ESTIMATION BASED MODELS OF WATER SOURCE HEAT PUMPS By HUI JIN Bachelor of Science validation of the water-to-air heat pump model. It's hard to find any words to express the thanks to my BASED MODELS OF WATER SLOURCE HEAT PUMPS Thesis Approved: Thesis Adviser Dean of the Graduate College ii

386

STATE-PARAMETER IDENTIFICATION PROBLEMS FOR ACCURATE BUILDING ENERGY AUDITS  

E-Print Network [OSTI]

STATE-PARAMETER IDENTIFICATION PROBLEMS FOR ACCURATE BUILDING ENERGY AUDITS Jordan Brouns1 calibration. The present paper investigates the use of such techniques to derive an energy audit procedure fails to predict accurately the real energy performance, mostly due to great uncertainties in the input

Paris-Sud XI, Université de

387

Determination of Parameters of PV Concentrating System With Heliostat  

Science Journals Connector (OSTI)

The structure of PV concentrating system with heliostat is analyzed. The mathematical model of system consisting of PV concentrating module and heliostat is developed. With the use of developed mathematical model the optimal parameters of the system are determined. The results of this work can be used during the design of PV concentrating systems with heliostats.

R. Vardanyan; A. Norsoyan; V. Dallakyan

2010-01-01T23:59:59.000Z

388

Likelihood transform: making optimization and parameter estimation easier  

E-Print Network [OSTI]

Parameterized optimization and parameter estimation is of great importance in almost every branch of modern science, technology and engineering. A practical issue in the problem is that when the parameter space is large and the available data is noisy, the geometry of the likelihood surface in the parameter space will be complicated. This makes searching and optimization algorithms computationally expensive, sometimes even beyond reach. In this paper, we define a likelihood transform which can make the structure of the likelihood surface much simpler, hence reducing the intrinsic complexity and easing optimization significantly. We demonstrate the properties of likelihood transform by apply it to a simplified gravitational wave chirp signal search. For the signal with an signal-to-noise ratio 20, likelihood transform has made a deterministic template-based search possible for the first time, which turns out to be 1000 times more efficient than an exhaustive grid- based search. The method in principle can be applied to other problems in other fields as the spirit of parameterized optimization and parameter estimation problem is the same.

Yan Wang

2014-02-25T23:59:59.000Z

389

Six parameter water temperature model W. Nicholas Beer  

E-Print Network [OSTI]

and allow comparison of different temperature profiles. A six parameter model is developed as an extension. The example uses 10 years of flow and temperature data from the Snake River near Anatone, Washington with the dashed line in Figure 1. Day of year DegreesC 0 100 200 300 0510152025 Snake River Temperatures

Washington at Seattle, University of

390

A Prescription for Galaxy Biasing Evolution as a Nuisance Parameter  

E-Print Network [OSTI]

There is currently no consistent approach to modelling galaxy bias evolution in cosmological inference. This lack of a common standard makes the rigorous comparison or combination of probes difficult. We show that the choice of biasing model has a significant impact on cosmological parameter constraints for a survey such as the Dark Energy Survey (DES), considering the 2-point correlations of galaxies in five tomographic redshift bins. We find that modelling galaxy bias with a free biasing parameter per redshift bin gives a Figure of Merit (FoM) for Dark Energy equation of state parameters $w_0, w_a$ smaller by a factor of 10 than if a constant bias is assumed. An incorrect bias model will also cause a shift in measured values of cosmological parameters. Motivated by these points and focusing on the redshift evolution of linear bias, we propose the use of a generalised galaxy bias which encompasses a range of bias models from theory, observations and simulations, $b(z) = c + (b_0 - c)/D(z)^\\alpha$, where $c, ...

Clerkin, L; Lahav, O; Abdalla, F B; Gaztanaga, E

2014-01-01T23:59:59.000Z

391

Parameter Estimation Using Dual Fractional Power Filters Jason M. Kinser  

E-Print Network [OSTI]

by the user, they only have to be contained within the training set. A dual filter system will be created from an unknown input from the training set was operated on by the filter the constraint value associatedParameter Estimation Using Dual Fractional Power Filters Jason M. Kinser The Institute

Kinser, Jason M.

392

Optimizing Nested Queries with Parameter Sort Orders Ravindra Guravannavar  

E-Print Network [OSTI]

Optimizing Nested Queries with Parameter Sort Orders Ravindra Guravannavar Ramanujam H.s@sybase.com Indian Institute of Technology Bombay sudarsha@cse.iitb.ac.in Abstract Nested iteration is an important technique for query evaluation. It is the default way of execut- ing nested subqueries in SQL. Although

Sudarshan, S.

393

Simple neutrino mass matrix with only two free parameters  

E-Print Network [OSTI]

A simple form of neutrino mass matrix which has only two free parameters is proposed from a phenomenological point of view. Using this mass matrix, we succeed to reproduce all the observed values for the MNS lepton mixing angles and the neutrino mass squared difference ratio. Our model also predicts $\\delta_{\

Nishiura, Hiroyuki

2014-01-01T23:59:59.000Z

394

Camera Parameters Estimation from Hand-labelled Sun Sositions  

E-Print Network [OSTI]

Camera Parameters Estimation from Hand-labelled Sun Sositions in Image Sequences Jean the sun is visible in an image sequence. The technique requires a user to label the position of the sun Results on Real Data 7 6 Summary 8 #12;#12;1 1 Introduction In this document, we show that if the sun

Treuille, Adrien

395

High-Speed Parameter Estimation Algorithms For Nonlinear Smart Materials  

E-Print Network [OSTI]

High-Speed Parameter Estimation Algorithms For Nonlinear Smart Materials Jon M. Ernstberger with experimental data. 1. INTRODUCTION Smart materials exhibit unique actuator and sensor capabilities for a range of aerospace, aeronautic, indus- trial and DoD applications. Applications of smart materials include

396

An Object-Based Audio Rendering System using Spatial Parameters  

E-Print Network [OSTI]

An Object-Based Audio Rendering System using Spatial Parameters Kuo-Lun Huang, Tai-Ming Chang, and Pao-Chi Chang Department of Communication Engineering National Central University Jhongli, Taiwan {klhuang, tmchang, pcchang}@vaplab.ce.ncu.edu.tw Abstract--In this paper, we propose an object-based audio

Chang, Pao-Chi

397

Environmental Transport Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This analysis report is one of the technical reports documenting the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), a biosphere model supporting the total system performance assessment for the license application (TSPA-LA) for the geologic repository at Yucca Mountain. A graphical representation of the documentation hierarchy for the ERMYN is presented in Figure 1-1. This figure shows relationships among the reports developed for biosphere modeling and biosphere abstraction products for the TSPA-LA, as identified in the ''Technical Work Plan for Biosphere Modeling and Expert Support'' (BSC 2004 [DIRS 169573]) (TWP). This figure provides an understanding of how this report contributes to biosphere modeling in support of the license application (LA). This report is one of the five reports that develop input parameter values for the biosphere model. The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes the conceptual model and the mathematical model. The input parameter reports, shown to the right of the Biosphere Model Report in Figure 1-1, contain detailed description of the model input parameters. The output of this report is used as direct input in the ''Nominal Performance Biosphere Dose Conversion Factor Analysis'' and in the ''Disruptive Event Biosphere Dose Conversion Factor Analysis'' that calculate the values of biosphere dose conversion factors (BDCFs) for the groundwater and volcanic ash exposure scenarios, respectively. The purpose of this analysis was to develop biosphere model parameter values related to radionuclide transport and accumulation in the environment. These parameters support calculations of radionuclide concentrations in the environmental media (e.g., soil, crops, animal products, and air) resulting from a given radionuclide concentration at the source of contamination (i.e., either in groundwater or in volcanic ash). The analysis was performed in accordance with the TWP (BSC 2004 [DIRS 169573]).

M. Wasiolek

2004-09-10T23:59:59.000Z

398

Hydrogen uptake in Zircaloy-2 reactor fuel claddings studied with elastic recoil detection  

Science Journals Connector (OSTI)

The recent trend towards a high burn-up discharge spent nuclear fuel necessitates a thorough understanding of hydrogen uptake in Zr-based cladding materials that encapsulate spent nuclear fuel. Although it is challenging to experimentally replicate exact conditions in a nuclear reactor that lead to hydrogen uptake in claddings in this study we have attempted to understand the kinetics of hydrogen uptake by first electrolytically charging Zircaloy-2 (Zr-2) cladding material for various durations (100 to 2 600 s) and subsequently examining hydrogen ingress with elastic recoil detection (ERD) and transmission electron microscopy (TEM). To understand the influence of irradiation damage defects on hydrogen uptake an analogous study was performed on ion - irradiated (0.1 1 and 25 dpa) Zr-2. Analysis of ERD data from the un-irradiated Zr-2 suggests that the growth of the hydride layer is diffusion controlled and preliminary TEM results support this assertion. In un-irradiated Zr-2 the diffusivity of hydrogen in the hydride phase was found to be approximately 1.1 10?11 cm2/s while the diffusivity in the hydride phase for lightly irradiated (0.1 and 1 dpa) Zr-2 is an order of magnitude lower. Irradiation to 25 dpa results in a hydrogen diffusivity that is comparable to the un-irradiated Zr-2. These results are compared with existing literature on hydrogen transport in Zr - based materials.

B. L. Doyle; D. G. Enos; B. G. Clark

2013-01-01T23:59:59.000Z

399

On the Detection of the Free Neutrino  

DOE R&D Accomplishments [OSTI]

The experiment previously proposed [to Detect the Free Neutrino] has been initiated, with a Hanford pile as a neutrino source. It appears probable that neutrino detection has been accomplished, and confirmatory work is in progress. (K.S.)

Reines, F.; Cowan, C. L., Jr.

1953-08-06T23:59:59.000Z

400

Radiation Detection Computational Benchmark Scenarios  

SciTech Connect (OSTI)

Modeling forms an important component of radiation detection development, allowing for testing of new detector designs, evaluation of existing equipment against a wide variety of potential threat sources, and assessing operation performance of radiation detection systems. This can, however, result in large and complex scenarios which are time consuming to model. A variety of approaches to radiation transport modeling exist with complementary strengths and weaknesses for different problems. This variety of approaches, and the development of promising new tools (such as ORNLs ADVANTG) which combine benefits of multiple approaches, illustrates the need for a means of evaluating or comparing different techniques for radiation detection problems. This report presents a set of 9 benchmark problems for comparing different types of radiation transport calculations, identifying appropriate tools for classes of problems, and testing and guiding the development of new methods. The benchmarks were drawn primarily from existing or previous calculations with a preference for scenarios which include experimental data, or otherwise have results with a high level of confidence, are non-sensitive, and represent problem sets of interest to NA-22. From a technical perspective, the benchmarks were chosen to span a range of difficulty and to include gamma transport, neutron transport, or both and represent different important physical processes and a range of sensitivity to angular or energy fidelity. Following benchmark identification, existing information about geometry, measurements, and previous calculations were assembled. Monte Carlo results (MCNP decks) were reviewed or created and re-run in order to attain accurate computational times and to verify agreement with experimental data, when present. Benchmark information was then conveyed to ORNL in order to guide testing and development of hybrid calculations. The results of those ADVANTG calculations were then sent to PNNL for compilation. This is a report describing the details of the selected Benchmarks and results from various transport codes.

Shaver, Mark W.; Casella, Andrew M.; Wittman, Richard S.; McDonald, Ben S.

2013-09-24T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Alternative Neutron Detection Testing Summary  

SciTech Connect (OSTI)

Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. Most currently deployed radiation portal monitors (RPMs) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large area neutron detector. This type of neutron detector is used in the TSA and other RPMs installed in international locations and in the Ludlum and Science Applications International Corporation RPMs deployed primarily for domestic applications. There is a declining supply of 3He in the world and, thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated wavelength-shifting plastic fibers. Reported here is a summary of the testing carried out at Pacific Northwest National Laboratory on these technologies to date, as well as measurements on 3He tubes at various pressures. Details on these measurements are available in the referenced reports. Sponsors of these tests include the Department of Energy (DOE), Department of Homeland Security (DHS), and the Department of Defense (DoD), as well as internal Pacific Northwest National Laboratory funds.

Kouzes, Richard T.; Ely, James H.; Erikson, Luke E.; Kernan, Warnick J.; Lintereur, Azaree T.; Siciliano, Edward R.; Stromswold, David C.; Woodring, Mitchell L.

2010-04-08T23:59:59.000Z

402

Multiplex detection of respiratory pathogens  

DOE Patents [OSTI]

Described are kits and methods useful for detection of respiratory pathogens (influenza A (including subtyping capability for H1, H3, H5 and H7 subtypes) influenza B, parainfluenza (type 2), respiratory syncytial virus, and adenovirus) in a sample. Genomic sequence information from the respiratory pathogens was analyzed to identify signature sequences, e.g., polynucleotide sequences useful for confirming the presence or absence of a pathogen in a sample. Primer and probe sets were designed and optimized for use in a PCR based, multiplexed Luminex assay to successfully identify the presence or absence of pathogens in a sample.

McBride, Mary (Brentwood, CA); Slezak, Thomas (Livermore, CA); Birch, James M. (Albany, CA)

2012-07-31T23:59:59.000Z

403

Fire suppression and detection equipment  

SciTech Connect (OSTI)

Inspection and testing guidelines go beyond the 'Code of Federal Regulation'. Title 30 of the US Code of Federal Regulations (30 CFR) contains requirements and references to national standards for inspection, testing and maintenance of fire suppression and detection equipment for mine operators. However, federal requirements have not kept pace with national standards and best practices. The article lists National Fire Protection (NFPA) standards that are referenced by the US Mine Safety and Health Administration (MSHA) in 30 CFR. It then discusses other NFPA Standards excluded from 30 CFR and explains the NFPA standard development process. 2 refs., 3 tabs., 5 photos.

E.E. Bates [HSB Professional Loss Control, Lexington, KY (United States)

2006-01-15T23:59:59.000Z

404

Detection and track of a stochastic target using multiple measurements  

SciTech Connect (OSTI)

The authors are interested in search and tracking problems. In a search, the target might be located among a number of hiding places. Multiple measurements from various locations might be used to determine the likelihood that a particular hiding place is occupied. An obvious example would be a search for a weak radiation source in a building. Search teams might make many measurements with radiation detectors and analyze this data to determine likely areas for further searching. In this paper the authors present a statistical interpretation of the implications of measurements made on a stochastic system, one which makes random state transitions with known average rates. Knowledge of the system is represented as a statistical ensemble of instances which accord with measurements and prior information. The evolution of ratios of populations in this ensemble due to measurements and stochastic transitions may be calculated efficiently. Applied to target detection and tracking, this approach allows a rigorous definition of probability of detection and probability of false alarm and reveals a computationally useful functional relationship between the two. An example of a linear array of simple counters is considered in detail. For it, accurate analytic approximations are developed for detection and tracking statistics as functions of system parameters. A single measure of effectiveness for individual sensors is found which is a major determinant of system performance and which would be useful for initial sensor design.

Cunningham, C.T.

1995-11-01T23:59:59.000Z

405

A functional gene array for detection of bacterial virulence elements  

SciTech Connect (OSTI)

We report our development of the first of a series of microarrays designed to detect pathogens with known mechanisms of virulence and antibiotic resistance. By targeting virulence gene families as well as genes unique to specific biothreat agents, these arrays will provide important data about the pathogenic potential and drug resistance profiles of unknown organisms in environmental samples. To validate our approach, we developed a first generation array targeting genes from Escherichia coli strains K12 and CFT073, Enterococcus faecalis and Staphylococcus aureus. We determined optimal probe design parameters for microorganism detection and discrimination, measured the required target concentration, and assessed tolerance for mismatches between probe and target sequences. Mismatch tolerance is a priority for this application, due to DNA sequence variability among members of gene families. Arrays were created using the NimbleGen Maskless Array Synthesizer at Lawrence Livermore National Laboratory. Purified genomic DNA from combinations of one or more of the four target organisms, pure cultures of four related organisms, and environmental aerosol samples with spiked-in genomic DNA were hybridized to the arrays. Based on the success of this prototype, we plan to design further arrays in this series, with the goal of detecting all known virulence and antibiotic resistance gene families in a greatly expanded set of organisms.

Jaing, C

2007-11-01T23:59:59.000Z

406

Acoustic enhancement for photo detecting devices  

DOE Patents [OSTI]

Provided are improvements to photo detecting devices and methods for enhancing the sensitivity of photo detecting devices. A photo detecting device generates an electronic signal in response to a received light pulse. An electro-mechanical acoustic resonator, electrically coupled to the photo detecting device, damps the electronic signal and increases the signal noise ratio (SNR) of the electronic signal. Increased photo detector standoff distances and sensitivities will result.

Thundat, Thomas G; Senesac, Lawrence R; Van Neste, Charles W

2013-02-19T23:59:59.000Z

407

Soil-related Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This analysis is one of the technical reports containing documentation of the Environmental Radiation Model for Yucca Mountain Nevada (ERMYN), a biosphere model supporting the Total System Performance Assessment (TSPA) for the geologic repository at Yucca Mountain. The biosphere model is one of a series of process models supporting the Total System Performance Assessment (TSPA) for the Yucca Mountain repository. A graphical representation of the documentation hierarchy for the ERMYN biosphere model is presented in Figure 1-1. This figure shows the interrelationships among the products (i.e., analysis and model reports) developed for biosphere modeling, and the plan for development of the biosphere abstraction products for TSPA, as identified in the ''Technical Work Plan: for Biosphere Modeling and Expert Support'' (BSC 2003 [163602]). It should be noted that some documents identified in Figure 1-1 may be under development at the time this report is issued and therefore not available. This figure is included to provide an understanding of how this analysis report contributes to biosphere modeling in support of the license application, and is not intended to imply that access to the listed documents is required to understand the contents of this report. This report, ''Soil Related Input Parameters for the Biosphere Model'', is one of the five analysis reports that develop input parameters for use in the ERMYN model. This report is the source documentation for the six biosphere parameters identified in Table 1-1. ''The Biosphere Model Report'' (BSC 2003 [160699]) describes in detail the conceptual model as well as the mathematical model and its input parameters. The purpose of this analysis was to develop the biosphere model parameters needed to evaluate doses from pathways associated with the accumulation and depletion of radionuclides in the soil. These parameters support the calculation of radionuclide concentrations in soil from on-going irrigation and ash deposition and, as a direct consequence, radionuclide concentration in resuspended particulate matter in the atmosphere. The analysis was performed in accordance with the technical work plan for the biosphere modeling and expert support (TWP) (BSC 2003 [163602]). This analysis revises the previous one titled ''Evaluate Soil/Radionuclide Removal by Erosion and Leaching'' (CRWMS M&O 2001 [152517]). In REV 00 of this report, the data generated were fixed (i.e., taking no account of uncertainty and variability) values. This revision incorporates uncertainty and variability into the values for the bulk density, elemental partition coefficients, average annual loss of soil from erosion, resuspension enhancement factor, and field capacity water content.

A. J. Smith

2003-07-02T23:59:59.000Z

408

Secretary Chu to Attend U.N. Climate Change Conference in Cancun |  

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

U.N. Climate Change Conference in Cancun U.N. Climate Change Conference in Cancun Secretary Chu to Attend U.N. Climate Change Conference in Cancun December 6, 2010 - 12:00am Addthis Washington, DC - On Sunday and Monday, December 5-6, U.S. Secretary of Energy Steven Chu will attend the U.N. Climate Change Conference in Cancun, Mexico. On Monday, Secretary Chu will participate in a conversation with Mexican Secretary of Energy Georgina Kessel about energy efficiency, the future of clean energy and our two countries' bilateral cooperation to address shared climate change challenges. The conversation will be moderated by U.S. Ambassador to Mexico Carlos Pascual and is part of the Green Solutions showcase hosted by the Mexican government. Later that day, Secretary Chu will speak at the U.S. Center to business leaders, government officials and

409

President Barack Obama at UN Climate Change Summit | Department of Energy  

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

President Barack Obama at UN Climate Change Summit President Barack Obama at UN Climate Change Summit President Barack Obama at UN Climate Change Summit Addthis Description In his first address to the United Nations as Commander-in-Chief, President Obama addresses the pressing issue of climate change. The one-day UN summit brought together delegations from 90 nations. Speakers President Obama Duration 4:06 Topic Energy Sources Energy Economy Credit Video Courtesy of United Nations PRESIDENT BARACK OBAMA: (Applause.) Thank you very much. Good morning. I want to thank the secretary-general for organizing this summit, and all the leaders who are participating. That so many of us are here today is a recognition that the threat from climate change is serious, it is urgent and it is growing. Our generation's response to this challenge will be

410

Un Seminar On The Utilization Of Geothermal Energy For Electric Power  

Open Energy Info (EERE)

Un Seminar On The Utilization Of Geothermal Energy For Electric Power Un Seminar On The Utilization Of Geothermal Energy For Electric Power Production And Space Heating, Florence 1984, Section 2- Geothermal Resources Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Un Seminar On The Utilization Of Geothermal Energy For Electric Power Production And Space Heating, Florence 1984, Section 2- Geothermal Resources Details Activities (3) Areas (1) Regions (0) Abstract: Unavailable Author(s): o ozkocak Published: Geothermics, 1985 Document Number: Unavailable DOI: Unavailable Source: View Original Journal Article Modeling-Computer Simulations (Ozkocak, 1985) Observation Wells (Ozkocak, 1985) Reflection Survey (Ozkocak, 1985) Unspecified Retrieved from "http://en.openei.org/w/index.php?title=Un_Seminar_On_The_Utilization_Of_Geothermal_Energy_For_Electric_Power_Production_And_Space_Heating,_Florence_1984,_Section_2-_Geothermal_Resources&oldid=386949"

411

En busca de un pas: poesa filipina en ingls, desde 1905 hasta la actualidad  

E-Print Network [OSTI]

ingls: Ponciano Reyes, The Flood (abril, pgs. 14-15), ytexto completo del poema The Flood, con un comentario sede Ponciano Reyes The Flood (1905) a Jos Garca Villa

Abad, Gmino H.

2014-01-01T23:59:59.000Z

412

MODELISATION ET COMMANDE D'UN ALTERNO-DEMARREUR HEPTAPHASE POUR APPLICATION AUTOMOBILE MICRO-HYBRIDE.  

E-Print Network [OSTI]

??Ces travaux de thse traitent de l'tude d'un systme alterno-dmarreur polyphas, pour une application automobile micro hybride. Ce systme est compos d'une machine synchrone, (more)

Bruyere, Antoine

413

Toward detection of aliases without string similarity  

Science Journals Connector (OSTI)

Entity aliases commonly exist. Accurately detecting these aliases plays a vital role in various applications. In particular, it is critical to detect the aliases that are intentionally hidden from the real identities, such as those of terrorists and ... Keywords: Active learning, Alias detection, Entity subset, Supervised classification

Ning An; Lili Jiang; Jianyong Wang; Ping Luo; Min Wang; Bing Nan Li

2014-03-01T23:59:59.000Z

414

Trainable Pedestrian Detection Constantine Papageorgiou Tomaso Poggio  

E-Print Network [OSTI]

of the system that has been integrated into a DaimlerChrysler test vehicle. 1 Introduction The robust detection detection systems are critical to the success of next­generation automotive vision systems. An important criteria is that the detection system be easily con­ figurable to a new domain or environment

Poggio, Tomaso

415

Strongly Incremental Repair Detection Julian Hough  

E-Print Network [OSTI]

Strongly Incremental Repair Detection Julian Hough Dialogue Systems Group Faculty of Linguistics.purver@qmul.ac.uk Abstract We present STIR (STrongly Incremen- tal Repair detection), a system that de- tects speech repairs-theoretic measures from n-gram models as its principal decision features in a pipeline of classifiers detecting

Purver, Matthew

416

Neutron Detection with Mercuric Iodide  

SciTech Connect (OSTI)

Mercuric iodide is a high-density, high-Z semiconducting material useful for gamma ray detection. This makes it convertible to a thermal neutron detector by covering it with a boron rich material and detecting the 478 keV gamma rays resulting from the {sup 10}B(n, {alpha}){sup 7}Li* reaction. However, the 374 barn thermal capture cross section of {sup nat}Hg, makes the detector itself an attractive absorber, and this has been exploited previously. Since previous work indicates that there are no low-energy gamma rays emitted in coincidence with the 368 keV capture gamma from the dominant {sup 199}Hg(n, {gamma}){sup 200}Hg reaction, only the 368 keV capture gamma is seen with any efficiency a relatively thin (few mm) detector. In this paper we report preliminary measurements of neutrons via capture reactions in a bare mercuric iodide crystal and a crystal covered in {sup 10}B-loaded epoxy. The covered detector is an improvement over the bare detector because the presence of both the 478 and 368 keV gamma rays removes the ambiguity associated with the observation of only one of them. Pulse height spectra, obtained with and without lead and cadmium absorbers, showed the expected gamma rays and demonstrated that they were caused by neutrons.

Bell, Z.A.

2003-06-17T23:59:59.000Z

417

DETECTING VOLCANISM ON EXTRASOLAR PLANETS  

SciTech Connect (OSTI)

The search for extrasolar rocky planets has already found the first transiting rocky super-Earth, Corot 7b, with a surface temperature that allows for magma oceans. Here, we investigate whether we could distinguish rocky planets with recent major volcanism by remote observation. We develop a model for volcanic eruptions on an Earth-like exoplanet based on the present-day Earth and derive the observable features in emergent and transmission spectra for multiple scenarios of gas distribution and cloud cover. We calculate the observation time needed to detect explosive volcanism on exoplanets in primary as well as secondary eclipse and discuss the likelihood of observing volcanism on transiting Earth-sized to super-Earth-sized exoplanets. We find that sulfur dioxide from large explosive eruptions does present a spectral signal that is remotely detectable especially for secondary eclipse measurements around the closest stars and ground-based telescopes, and report the frequency and magnitude of the expected signatures. The transit probability of a planet in the habitable zone decreases with distance from the host star, making small, nearby host stars the best targets.

Kaltenegger, L.; Sasselov, D. D. [Harvard University, 60 Garden Street, Cambridge, MA 02138 (United States); Henning, W. G., E-mail: lkaltene@cfa.harvard.ed [Harvard University, EPS, 20 Oxford Street, Cambridge, MA 02138 (United States)

2010-11-15T23:59:59.000Z

418

AIDE - Advanced Intrusion Detection Environment  

SciTech Connect (OSTI)

Would you like to know when someone has dropped an undesirable executable binary on our system? What about something less malicious such as a software installation by a user? What about the user who decides to install a newer version of mod_perl or PHP on your web server without letting you know beforehand? Or even something as simple as when an undocumented config file change is made by another member of the admin group? Do you even want to know about all the changes that happen on a daily basis on your server? The purpose of an intrusion detection system (IDS) is to detect unauthorized, possibly malicious activity. The purpose of a host-based IDS, or file integrity checker, is check for unauthorized changes to key system files, binaries, libraries, and directories on the system. AIDE is an Open Source file and directory integrity checker. AIDE will let you know when a file or directory has been added, deleted, modified. It is included with the Red Hat Enterprise 6. It is available for other Linux distros. This is a case study describing the process of configuring AIDE on an out of the box RHEL6 installation. Its goal is to illustrate the thinking and the process by which a useful AIDE configuration is built.

Smith, Cathy L.

2013-04-28T23:59:59.000Z

419

Identification de paramtres magntiques l'intrieur d'un tokamak  

E-Print Network [OSTI]

Identification de paramètres magnétiques à l'intérieur d'un tokamak Yannick Fischer* * INRIA normale) à l'intérieur d'un tokamak, plus précisément dans la région située à l'extérieur du plasma, et ce) inside a tokamak, more precisely in the area located outside of the plasma, from their measurements

Boyer, Edmond

420

Mercedes Volait Un ensemble urbain Art dco en Egypte : Hliopolis, banlieue du Caire  

E-Print Network [OSTI]

Mercedes Volait « Un ensemble urbain Art déco en Egypte : Héliopolis, banlieue du Caire » Version : Edicions Bellaterra, 2008, p. 221-254 Un ensemble urbain Art déco en Egypte : Héliopolis, banlieue du Caire parisien, actif depuis 1894 en Egypte, et son associé, le Centralien Boghos Nubar, qui a été administrateur

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "detection un parameter" 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

UN THEOR`EME SUR LES ACTIONS DE GROUPES DE DIMENSION INFINIE  

E-Print Network [OSTI]

UN TH´EOR`EME SUR LES ACTIONS DE GROUPES DE DIMENSION INFINIE JACQUES F´EJOZ AND MAURICIO GARAY R qui recourent `a un th´eor`eme d'inversion locale (e.g. [3, 5] ou [4, Th´eor`eme 4.2.5]), par l´ee par Kolmogo- rov et Arnold dans leur d´emonstration du th´eor`eme des tores invariants [2, 1]. Le th´eor

Paris-Sud XI, Université de

422

Southern IllInoIS unIverSIty Brand Book NOVEMBER 2011 The SIU Brand  

E-Print Network [OSTI]

, or particular color. Those things are all part of delivering a brand--along with the image we conveySouthern IllInoIS unIverSIty Brand Book NOVEMBER 2011 The SIU Brand WITHIN REACH #12;Southern IllInoIS unIverSIty Brand Book 2 1.0 ThE SIU BRaNd WIThIN REach 1.1 Why We've Created This Book 1

Nickrent, Daniel L.

423

Un nouvel lment : le Radiothorium dont l'manation est identique celle du Thorium 1  

E-Print Network [OSTI]

Un nouvel élément : le Radiothorium dont l'émanation est identique à celle du Thorium 1 Deuxième principalement par un mélange de terres rares, dont le thorium était la plus abondante. M. Dunstan, qui avait ii (pie la radioactivité des parties les plus solubles était identique il celle du thorium. Il fallait

Boyer, Edmond

424

Computational Procedures for Determining Parameters in Ramberg-Osgood  

Office of Scientific and Technical Information (OSTI)

Computational Procedures for Determining Parameters in Ramberg-Osgood Computational Procedures for Determining Parameters in Ramberg-Osgood Elastoplastic Model Based on Modulus and Damping Versus Strain Tzou-Shin Ueng Jian-Chu Chen July, 1992 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or

425

ET Parameters for Mixed-Valence Ru Complexes  

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

Convergence of Spectroscopic and Kinetic Electron Transfer Parameters for Convergence of Spectroscopic and Kinetic Electron Transfer Parameters for Mixed-Valence Binuclear Dipyridylamide Ruthenium Ammine Complexes Alison J. Distefano, James F. Wishart, and Stephan S. Isied Coord. Chem. Rev. 249, 507-516 (2005). [Find paper at Elsevier Science Direct] Abstract: A series of binuclear ruthenium(II,III) pentaammine complexes bridged by 4-pyridyl isonicotinamide (iso-apy) and methyl, 4-pyridyl isonicotinamide (iso-mapy), and their mononuclear congeners, were studied by spectroscopic and kinetic techniques. The amide functionality provides asymmetry between the electronic environments of the metal ions bound to the aminopyridine (apy) and pyridine carbonyl (iso) ends. The resulting difference is observed in the charge transfer spectra and the

426

Performance and safety parameters for the high flux isotope reactor  

SciTech Connect (OSTI)

A Monte Carlo depletion model for the High Flux Isotope Reactor (HFIR) Cycle 400 and its use in calculating parameters of relevance to the reactor performance and safety during the reactor cycle are presented in this paper. This depletion model was developed to serve as a reference for the design of a low-enriched uranium (LEU) fuel for an ongoing study to convert HFIR from high-enriched uranium (HEU) to LEU fuel; both HEU and LEU depletion models use the same methodology and ENDF/B-VII nuclear data as discussed in this paper. The calculated HFIR Cycle 400 parameters, which are compared with measurement data from critical experiments performed at HFIR, data included in the HFIR Safety Analysis Report (SAR), or data reported by previous calculations, provide a basis for verification or updating of the corresponding SAR data. (authors)

Ilas, G. [Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831-6172 (United States); Primm III, T. [Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831-6172 (United States); Primm Consulting, LLC, 945 Laurel Hill Road, Knoxville, TN 37923 (United States)

2012-07-01T23:59:59.000Z

427

Parameter consistency in multienergetic k?p models  

Science Journals Connector (OSTI)

Standard derivations of multiband k?p models rely on Lwdin perturbation theory. Close examination of this method, however, reveals that it is unsuitable for treating systems with multiple zeroth-order energies. As a result, various perturbation sums in multienergetic k?p models are not well defined, and a consistent set of k?p parameters cannot be guaranteed. We inspect this difficulty and present an alternative derivation of the k?p theory based on the method of infinitesimal basis transformations. This approach clearly demonstrates that a consistent k?p matrix can be generated from an arbitrary number of zeroth-order wave functions regardless of their energies. In addition, we obtain a corrected expression for off-diagonal perturbation sums. The expression is applied to give the corrected form for the asymmetric B parameter in the s-p-coupled zinc-blende k?p Hamiltonian.

John P. Loehr

1995-07-15T23:59:59.000Z

428

Watt parameters for the Los Alamos Model : Subroutine getab  

E-Print Network [OSTI]

Many neutron transport Monte-Carlo codes can randomly sample fission neutron energies from a Watt spectrum. The quality of simulations depends on how well the Watt spectrum represents the true energy spectrum of the fission neutrons, and on one's choice of the Watt parameters a and b. The energy spectra of fission neutrons have been calculated and tabulated for the neutron induced fission of 235,238U and 239Pu as a function of incoming neutron energy by Madland using the Los Alamos Model. Each of these energy spectra are mapped into time-of-flight space and fitted with a Watt spectrum. A subroutine getab has been written to interpolate these results, so that Watt a and b parameters can be estimated for all incoming neutron energies up to ~16 MeV.

Lestone, J P

2014-01-01T23:59:59.000Z

429

Watt parameters for the Los Alamos Model : Subroutine getab  

E-Print Network [OSTI]

Many neutron transport Monte-Carlo codes can randomly sample fission neutron energies from a Watt spectrum. The quality of simulations depends on how well the Watt spectrum represents the true energy spectrum of the fission neutrons, and on one's choice of the Watt parameters a and b. The energy spectra of fission neutrons have been calculated and tabulated for the neutron induced fission of 235,238U and 239Pu as a function of incoming neutron energy by Madland using the Los Alamos Model. Each of these energy spectra are mapped into time-of-flight space and fitted with a Watt spectrum. A subroutine getab has been written to interpolate these results, so that Watt a and b parameters can be estimated for all incoming neutron energies up to ~16 MeV.

J. P. Lestone

2014-09-18T23:59:59.000Z

430

Determination of dynamic fracture parameters for HF?1 steel  

Science Journals Connector (OSTI)

Dynamic fracture parameters have been determined for two heat treatments of HF?1 steel. A gas gun was used for the experiments. Different amounts of fracture damage were produced in HF?1 steel specimens under known impact conditions. The specimens were soft recovered sectioned and polished to reveal any internal microscopic fracture. The fracturecracks were then digitized. The velocities of the 1.15? 1.59? and 2.37?mm?thick impactor disks range from 0.120 to 0.276 km/s. The specimen disks were 3.18? and 6.35?mm thick. An SRI stress wave propagationcomputer program with a brittlefracturemodel was used for calculating the dynamic fracture parameters. A series of Hugoniot experiments was performed for HF?1 steel to determine equation of state input data for the computer program. The Hugoniot elastic limits were 2.2 and 2.4 GPa for the two heat treatments.

Willis Mock Jr.; William H. Holt

1982-01-01T23:59:59.000Z

431

Weighted statistical parameters for irregularly sampled time series  

E-Print Network [OSTI]

Unevenly spaced time series are common in astronomy because of the day-night cycle, weather conditions, dependence on the source position in the sky, allocated telescope time, corrupt measurements, for example, or be inherent to the scanning law of satellites like Hipparcos and the forthcoming Gaia. This paper aims at improving the accuracy of common statistical parameters for the characterization of irregularly sampled signals. The uneven representation of time series, often including clumps of measurements and gaps with no data, can severely disrupt the values of estimators. A weighting scheme adapting to the sampling density and noise level of the signal is formulated. Its application to time series from the Hipparcos periodic catalogue led to significant improvements in the overall accuracy and precision of the estimators with respect to the unweighted counterparts and those weighted by inverse-squared uncertainties. Automated classification procedures employing statistical parameters weighted by the sugg...

Rimoldini, Lorenzo

2014-01-01T23:59:59.000Z

432

A precision measurement of the muon decay parameter delta  

E-Print Network [OSTI]

The muon decay parameter delta characterizes momentum dependence of the parity-violating muon decay asymmetry. A new measurement of delta has been performed using the first physics data recorded by the TWIST experiment at TRIUMF. The obtained value, delta=0.74964+-0.00066(stat.)+-0.00112(syst.), is consistent with the Standard Model expectation delta=3/4. This is the first determination of delta performed using a blind analysis technique. Combined with other data, the measurement sets new model-independent limits on effective right-handed couplings of the muon. Improved limits on the product of another muon decay parameter, xi, and the muon polarization in pion decay, Pmu, are obtained in the form: 0.9960Pmu*xi<=xi<1.0040, at 90% confidence level. Implications for left-right symmetric models are discussed.

Gaponenko, Andrei

2011-01-01T23:59:59.000Z

433

A precision measurement of the muon decay parameter delta  

E-Print Network [OSTI]

The muon decay parameter delta characterizes momentum dependence of the parity-violating muon decay asymmetry. A new measurement of delta has been performed using the first physics data recorded by the TWIST experiment at TRIUMF. The obtained value, delta=0.74964+-0.00066(stat.)+-0.00112(syst.), is consistent with the Standard Model expectation delta=3/4. This is the first determination of delta performed using a blind analysis technique. Combined with other data, the measurement sets new model-independent limits on effective right-handed couplings of the muon. Improved limits on the product of another muon decay parameter, xi, and the muon polarization in pion decay, Pmu, are obtained in the form: 0.9960Pmu*xi<=xi<1.0040, at 90% confidence level. Implications for left-right symmetric models are discussed.

Andrei Gaponenko

2011-04-14T23:59:59.000Z

434

Study of some parameters interstellar transport using of magnetic umbrella  

E-Print Network [OSTI]

Interstellar transport is an object of interest in many sci-fi stories. In history a lot of sci-fi predictions have turned into reality, such as communications satellites, deep-sea submarines and journies to the moon. In this work we study some physical parameters of a space ship which uses a magnetic umbrella. Our spaceship generates a magnetic field in its neighborhood and captures charged protons into a magnetic trap. These particles are taken into a fusion reactor. The obtained energy and waste in form of helium are used as a fuel in an ion engine. With the help of elementary physics we can work out the basic physical parameters of the ship, e.g. maximal velocity, acceleration of the ship or acceleration time period.

Martin ?ermk

2013-01-28T23:59:59.000Z

435

Study of some parameters interstellar transport using of magnetic umbrella  

E-Print Network [OSTI]

Interstellar transport is an object of interest in many sci-fi stories. In history a lot of sci-fi predictions have turned into reality, such as communications satellites, deep-sea submarines and journies to the moon. In this work we study some physical parameters of a space ship which uses a magnetic umbrella. Our spaceship generates a magnetic field in its neighborhood and captures charged protons into a magnetic trap. These particles are taken into a fusion reactor. The obtained energy and waste in form of helium are used as a fuel in an ion engine. With the help of elementary physics we can work out the basic physical parameters of the ship, e.g. maximal velocity, acceleration of the ship or acceleration time period.

?ermk, Martin

2013-01-01T23:59:59.000Z

436

Model of the Stochastic Vacuum and QCD Parameters  

E-Print Network [OSTI]

Accounting for the two independent correlation functions of the QCD vacuum, we improve the simple and consistent description given by the model of the stochastic vacuum to the high-energy pp and pbar-p data, with a new determination of parameters of non-perturbative QCD. The increase of the hadronic radii with the energy accounts for the energy dependence of the observables.

Erasmo Ferreira; Flvio Pereira

1997-05-09T23:59:59.000Z

437

Quark Phase Transition Parameters and $?$-Meson Field in RMF Theory  

E-Print Network [OSTI]

The deconfinement phase transition from hadronic matter to quark matter in the interior of compact stars is investigated. The hadronic phase is described in the framework of relativistic mean-field (RMF) theory, when also the scalar- isovector $\\delta$-meson effective field is taken into account. To describe a quark phase the MIT bag model is used. The changes of the mixed phase threshold parameters caused by the presence of $\\delta$-meson field are investigated.

G. B. Alaverdyan

2009-07-23T23:59:59.000Z

438

Local Gersten's conjecture for regular system of parameters Satoshi Mochizuki  

E-Print Network [OSTI]

) and whose projective dimension is less than p by MI A(p). If ht I = p, we write WtI A := MI A. Gersten). The inclusion functor WtI A Mp-1 A in- duces zero maps Kn(WtI A) Kn(Mp-1 A ) for any non-negative integer n system of parameter f1, . . . , fp, then the canonical inclusion functor WtI A MJ A(p) induces the zero

439

Inhalation Exposure Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This analysis is one of 10 reports that support the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN) biosphere model. The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes in detail the conceptual model as well as the mathematical model and its input parameters. This report documents development of input parameters for the biosphere model that are related to atmospheric mass loading and supports the use of the model to develop biosphere dose conversion factors (BDCFs). The biosphere model is one of a series of process models supporting the total system performance assessment (TSPA) for a Yucca Mountain repository. Inhalation Exposure Input Parameters for the Biosphere Model is one of five reports that develop input parameters for the biosphere model. A graphical representation of the documentation hierarchy for the ERMYN is presented in Figure 1-1. This figure shows the interrelationships among the products (i.e., analysis and model reports) developed for biosphere modeling, and the plan for development of the biosphere abstraction products for TSPA, as identified in the Technical Work Plan for Biosphere Modeling and Expert Support (BSC 2004 [DIRS 169573]). This analysis report defines and justifies values of mass loading for the biosphere model. Mass loading is the total mass concentration of resuspended particles (e.g., dust, ash) in a volume of air. Mass loading values are used in the air submodel of ERMYN to calculate concentrations of radionuclides in air inhaled by a receptor and concentrations in air surrounding crops. Concentrations in air to which the receptor is exposed are then used in the inhalation submodel to calculate the dose contribution to the receptor from inhalation of contaminated airborne particles. Concentrations in air surrounding plants are used in the plant submodel to calculate the concentrations of radionuclides in foodstuffs contributed from uptake by foliar interception.

K. Rautenstrauch

2004-09-10T23:59:59.000Z

440

Distributed parameter hydrologic modeling usinsg object-oriented simulation  

E-Print Network [OSTI]

DISTRIBUTED PARAMETER HYDROLOGIC MODELING USING OBJECT-ORIENTED SIMULATION A Thesis by KENNETH RAY KLANIKA Submitted to Texas A&M University in partial fulfilhnent of the requirements for the degree of MASTER OF SCIENCE Approved as to style...). The Geographic Object-Oriented Simulation Environment [GOOSE] is linked with GRASS, and is used to create the basic patch network from GRASS ASCII vector and attribute files. The model, written in Common Lisp Object System [CLOS] language, was designed around...

Klanika, Kenneth Ray

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Parameter identification of a vibratory system with a clearance  

E-Print Network [OSTI]

Co-Chairmen of Advisory Committee: Dr. FL M. Alexander Dr. S. T. Noah An analytical and experimental investigation of a vibratory system with a clearance was conducted. A finite element model and an equivalent single degree of freedom dosed... Parameters Experimental Analytical Damping Equivalent Single Degree of Freedom Model IV FINITE ELEMENT MODEL . B 10 10 15 19 20 24 Finite Element Model Without Rigid Stop Finite Element Model With Rigid Stop V CLOSED-FORM SOLUTION...

Franck, Charles Graves

1987-01-01T23:59:59.000Z

442

Analyse numrique qualitative d'interactions rotor/stator dans un compresseur haute pression d'un moteur d'hlicoptre  

E-Print Network [OSTI]

are carried out on the centrifugal compressor of a modern heli- copter engine, for which it is assumed méthodologie systématique d'analyse. Les simulations d'interaction sont réalisées sur un compresseur centrifuge-harmoniques du chargement imposé. A qualitative numerical analysis of rotor-casing interactions in centrifugal

Paris-Sud XI, Université de

443

Advanced research in instrumentation and control technology: Acoustic parameter studies  

SciTech Connect (OSTI)

In the process of developing acoustic/ultrasonic instruments for coal conversion and combustion processes, there is a need to understand various complex relations between acoustic parameters and physical properties of coal/gas and coal/liquid media so that the instrument readings and measurement accuracy can be evaluated and new sensing techniques can be developed. The primary objective of this project is to examine the theory and perform measurements of acoustic/ultrasonic parameters in such coal media. The acoustic parameters of interest are sound speed, attenuation, scattering pattern, and resonance scattering, which relate directly or indirectly to coal concentration, particle size and distribution, and rheological and thermal properties. In summary, we have developed a laboratory technique for accurate attenuation measurement in highly viscous liquids and coal slurries. For pure liquids, the attenuation in low frequency (0.8 to 2 MHz) provides a direct measurement of fluid shear viscosity. For coal slurries of low concentration (<10% by weight) attenuation in the same frequency range still follows the variation of fluid viscosity. But, for slurries of higher coal concentration, anomalous attenuation may be measured, depending on the fluid structure, which is believed to be a micor-inhomogeneous medium. 8 refs., 5 figs., 1 tab.

Sheen, S.H.; Bobis, J.P.; Raptis, A.C.

1986-01-01T23:59:59.000Z

444

DARK MATTER SUBSTRUCTURE DETECTION USING SPATIALLY RESOLVED SPECTROSCOPY OF LENSED DUSTY GALAXIES  

SciTech Connect (OSTI)

We investigate how strong lensing of dusty, star-forming galaxies (DSFGs) by foreground galaxies can be used as a probe of dark matter halo substructure. We find that spatially resolved spectroscopy of lensed sources allows dramatic improvements to measurements of lens parameters. In particular, we find that modeling of the full, three-dimensional (angular position and radial velocity) data can significantly facilitate substructure detection, increasing the sensitivity of observables to lower mass subhalos. We carry out simulations of lensed dusty sources observed by early ALMA (Cycle 1) and use a Fisher matrix analysis to study the parameter degeneracies and mass detection limits of this method. We find that even with conservative assumptions, it is possible to detect galactic dark matter subhalos of {approx}10{sup 8} M{sub Sun} with high significance in most lensed DSFGs. Specifically, we find that in typical DSFG lenses, there is a {approx}55% probability of detecting a substructure with M > 10{sup 8} M{sub Sun} with more than 5{sigma} detection significance in each lens, if the abundance of substructure is consistent with previous lensing results. The full ALMA array, with its significantly enhanced sensitivity and resolution, should improve these estimates considerably. Given the sample of {approx}100 lenses provided by surveys such as the South Pole Telescope, our understanding of dark matter substructure in typical galaxy halos is poised to improve dramatically over the next few years.

Hezaveh, Yashar; Holder, Gilbert [Department of Physics, McGill University, 3600 Rue University, Montreal, Quebec H3A 2T8 (Canada)] [Department of Physics, McGill University, 3600 Rue University, Montreal, Quebec H3A 2T8 (Canada); Dalal, Neal [Astronomy Department, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801 (United States)] [Astronomy Department, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801 (United States); Kuhlen, Michael [Theoretical Astrophysics Center, University of California, Berkeley, CA 94720 (United States)] [Theoretical Astrophysics Center, University of California, Berkeley, CA 94720 (United States); Marrone, Daniel [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States)] [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Murray, Norman [CITA, University of Toronto, 60 St. George Street, Toronto, ON M5S 3H8 (Canada)] [CITA, University of Toronto, 60 St. George Street, Toronto, ON M5S 3H8 (Canada); Vieira, Joaquin [California Institute of Technology, 1200 East California Blvd, MC 249-17, Pasadena, CA 91125 (United States)] [California Institute of Technology, 1200 East California Blvd, MC 249-17, Pasadena, CA 91125 (United States)

2013-04-10T23:59:59.000Z

445

DIFFERENTIAL SOIL IMPEDANCE OBSTACLE DETECTION  

SciTech Connect (OSTI)

This project develops a new and unique obstacle detection sensor for horizontal directional drilling (HDD) equipment. The development of this new technology will greatly improve the reliability and safety of natural gas HDD construction practices. This sensor utilizes a differential soil impedance measurement technique that will be sensitive to the presence of plastic and ceramic, as well as metallic obstacles. The use of HDD equipment has risen significantly in the gas industry because HDD provides a much more cost-effective and less disruptive method for gas pipe installation than older, trenching methods. However, there have been isolated strikes of underground utilities by HDD equipment, which may have been avoided if methods were available to detect other underground obstacles when using HDD systems. GTI advisors from the gas industry have ranked the value of solving the obstacle detection problem as the most important research and development project for GTI to pursue using Federal Energy Regulatory Commission (FERC) funds available through its industry partner, GRI. GTI proposes to develop a prototype down-hole sensor system that is simple and compact. The sensor utilizes an impedance measurement technique that is sensitive to the presence of metallic or nonmetallic objects in the proximity of the HDD head. The system will use a thin film sensor conformal with the drill head. The impedance of the soil will be measured with a low frequency signal injected through the drill head itself. A pair of bridge type impedance sensors, mounted orthogonal to one another, is capacitively coupled to the soil. Inclusions in the soil will cause changes to the sensor balance distinguishable from homogeneous soil. The sensor will provide range and direction data for obstacles near the HDD head. The goal is to provide a simple, robust system that provides the information required to avoid obstacles. This must be done within the size and ruggedness constraints of the HDD equipment. Imaging obstacles is not within the scope of this work, as it would require a more elaborate sensor than is practical within the HDD head.

Maximillian J. Kieba

2002-08-30T23:59:59.000Z

446

Detection of point sources on two-dimensional images based on peaks  

E-Print Network [OSTI]

This article considers the detection of point sources in two dimensional astronomical images. The detection scheme we propose is based on peak statistics. We discuss the example of the detection of far galaxies in Cosmic Microwave Background experiments throughout the paper, although the method we present is totally general and can be used in many other fields of data analysis. We assume sources with a Gaussian profile --that is a fair approximation of the profile of a point source convolved with the detector beam in microwave experiments-- on a background modeled by a homogeneous and isotropic Gaussian random field characterized by a scale-free power spectrum. Point sources are enhanced with respect to the background by means of linear filters. After filtering, we identify local maxima and apply our detection scheme, a Neyman-Pearson detector that defines our region of acceptance based on the a priori pdf of the sources and the ratio of number densities. We study the different performances of some linear filters that have been used in this context in the literature: the Mexican Hat wavelet, the matched filter and the scale-adaptive filter. We consider as well an extension to two dimensions of the biparametric scale adaptive filter (BSAF). The BSAF depends on two parameters which are determined by maximizing the number density of real detections while fixing the number density of spurious detections. For our detection criterion the BSAF outperforms the other filters in the interesting case of white noise.

M. Lopez-Caniego; D. Herranz; J. L. Sanz; R. B. Barreiro

2005-03-07T23:59:59.000Z

447

Cellular telephone-based radiation detection instrument  

DOE Patents [OSTI]

A network of radiation detection instruments, each having a small solid state radiation sensor module integrated into a cellular phone for providing radiation detection data and analysis directly to a user. The sensor module includes a solid-state crystal bonded to an ASIC readout providing a low cost, low power, light weight compact instrument to detect and measure radiation energies in the local ambient radiation field. In particular, the photon energy, time of event, and location of the detection instrument at the time of detection is recorded for real time transmission to a central data collection/analysis system. The collected data from the entire network of radiation detection instruments are combined by intelligent correlation/analysis algorithms which map the background radiation and detect, identify and track radiation anomalies in the region.

Craig, William W. (Pittsburg, CA); Labov, Simon E. (Berkeley, CA)

2011-06-14T23:59:59.000Z

448

Improving the detection ...1 Improving the detection of On-line Vertical Port Scan  

E-Print Network [OSTI]

Improving the detection ...1 Improving the detection of On-line Vertical Port Scan Improving the detection of On-line Vertical Port Scan in IP Traffic Yousra Chabchoub , Christine Fricker and Philippe to detect port scan attacks in IP traffic. Only relevant information about destination IP addresses

Paris-Sud XI, Université de

449

REAL-TIME ACTIVE PIPELINE INTEGRITY DETECTION (RAPID) SYSTEM FOR CORROSION DETECTION AND QUANTIFICATION  

E-Print Network [OSTI]

REAL-TIME ACTIVE PIPELINE INTEGRITY DETECTION (RAPID) SYSTEM FOR CORROSION DETECTION detection Acellent has developed a Real-time Active Pipeline Integrity Detection (RAPID) system. The RAPID system utilizes a sensor network permanently bonded to the pipeline structure along with in

Paris-Sud XI, Université de

450

Parameter Estimation Versus Homogenization Techniques in Time-Domain Characterization of Composite Dielectrics  

E-Print Network [OSTI]

Parameter Estimation Versus Homogenization Techniques in Time-Domain Characterization of Composite problem approach to parameter estimation with homogenization techniques for characterizing the electrical with heterogeneous micro-structures which are described by spatially periodic parameters. We also consider

451

Distinguishability analysis of controller parameters with applications to DFIG based wind turbine  

Science Journals Connector (OSTI)

The power system controllers normally have more than one parameter. The distinguishability analysis of the controller parameters is to identify whether the optimal set of the parameters of the controllers is uniq...

Chuan Qin; Ping Ju; Feng Wu; Lei Liu

2013-10-01T23:59:59.000Z

452

Characterization of A Novel Avalanche Photodiode for Single Photon Detection in VIS-NIR Range  

E-Print Network [OSTI]

In this work we investigate operation in the Geiger mode of the new single photon avalanche photo diode (SPAD) SAP500 manufactured by Laser Components. This SPAD is sensitive in the range 400-1000nm and has a conventional reach-through structure which ensures good quantum efficiency at the long end of the spectrum. By use of passive and active quenching schemes we investigate detection efficiency, timing jitter, dark counts, afterpulsing, gain and other important parameters and compare them to the "standard" low noise SPAD C30902SH from Perkin Elmer. We conclude that SAP500 offers better combination of detection efficiency, low noise and timing precision.

M. Stipcevic; H. Skenderovic; D. Gracin

2010-04-03T23:59:59.000Z

453

Soil-Related Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This report presents one of the analyses that support the Environmental Radiation Model for Yucca Mountain Nevada (ERMYN). The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes the details of the conceptual model as well as the mathematical model and the required input parameters. The biosphere model is one of a series of process models supporting the postclosure Total System Performance Assessment (TSPA) for the Yucca Mountain repository. A schematic representation of the documentation flow for the Biosphere input to TSPA is presented in Figure 1-1. This figure shows the evolutionary relationships among the products (i.e., analysis and model reports) developed for biosphere modeling, and the biosphere abstraction products for TSPA, as identified in the ''Technical Work Plan for Biosphere Modeling and Expert Support'' (TWP) (BSC 2004 [DIRS 169573]). This figure is included to provide an understanding of how this analysis report contributes to biosphere modeling in support of the license application, and is not intended to imply that access to the listed documents is required to understand the contents of this report. This report, ''Soil-Related Input Parameters for the Biosphere Model'', is one of the five analysis reports that develop input parameters for use in the ERMYN model. This report is the source documentation for the six biosphere parameters identified in Table 1-1. The purpose of this analysis was to develop the biosphere model parameters associated with the accumulation and depletion of radionuclides in the soil. These parameters support the calculation of radionuclide concentrations in soil from on-going irrigation or ash deposition and, as a direct consequence, radionuclide concentration in other environmental media that are affected by radionuclide concentrations in soil. The analysis was performed in accordance with the TWP (BSC 2004 [DIRS 169573]) where the governing procedure was defined as AP-SIII.9Q, ''Scientific Analyses''. This analysis revises the previous version with the same name (BSC 2003 [DIRS 161239]), which was itself a revision of one titled ''Evaluate Soil/Radionuclide Removal by Erosion and Leaching'' (CRWMS M&O 2001 [DIRS 152517]). In Revision 00 of this report, the data generated were fixed values (i.e., taking no account of uncertainty and variability). Revision 01 (BSC 2003 [DIRS 161239]) incorporated uncertainty and variability into the values for the bulk density, elemental partition coefficients, average annual loss of soil from erosion, resuspension enhancement factor, and field capacity water content. The current revision of this document improves the transparency and traceability of the products without changing the details of the analysis. This analysis report supports the treatment of six of the features, events, and processes (FEPs) applicable to the Yucca Mountain reference biosphere (DTN: MO0407SEPFEPLA.000 [DIRS 170760]). The use of the more recent FEP list in DTN: MO0407SEPFEPLA.000 [DIRS 170760] represents a deviation from the detail provided in the TWP (BSC 2004 [DIRS 169573]), which referenced a previous version of the FEP list. The parameters developed in this report support treatment of these six FEPs addressed in the biosphere model that are listed in Table 1-1. Inclusion and treatment of FEPs in the biosphere model is described in the ''Biosphere Model Report'' (BSC 2004 [DIRS 169460], Section 6.2).

A. J. Smith

2004-09-09T23:59:59.000Z

454

Geoelectrical Measurement of Multi-Scale Mass Transfer Parameters  

SciTech Connect (OSTI)

Mass transfer affects contaminant transport and is thought to control the efficiency of aquifer remediation at a number of sites within the Department of Energy (DOE) complex. An improved understanding of mass transfer is critical to meeting the enormous scientific and engineering challenges currently facing DOE. Informed design of site remedies and long-term stewardship of radionuclide-contaminated sites will require new cost-effective laboratory and field techniques to measure the parameters controlling mass transfer spatially and across a range of scales. In this project, we sought to capitalize on the geophysical signatures of mass transfer. Previous numerical modeling and pilot-scale field experiments suggested that mass transfer produces a geoelectrical signaturea hysteretic relation between sampled (mobile-domain) fluid conductivity and bulk (mobile + immobile) conductivityover a range of scales relevant to aquifer remediation. In this work, we investigated the geoelectrical signature of mass transfer during tracer transport in a series of controlled experiments to determine the operation of controlling parameters, and also investigated the use of complex-resistivity (CR) as a means of quantifying mass transfer parameters in situ without tracer experiments. In an add-on component to our grant, we additionally considered nuclear magnetic resonance (NMR) to help parse mobile from immobile porosities. Including the NMR component, our revised study objectives were to: 1. Develop and demonstrate geophysical approaches to measure mass-transfer parameters spatially and over a range of scales, including the combination of electrical resistivity monitoring, tracer tests, complex resistivity, nuclear magnetic resonance, and materials characterization; and 2. Provide mass-transfer estimates for improved understanding of contaminant fate and transport at DOE sites, such as uranium transport at the Hanford 300 Area. To achieve our objectives, we implemented a 3-part research plan involving (1) development of computer codes and techniques to estimate mass-transfer parameters from time-lapse electrical data; (2) bench-scale experiments on synthetic materials and materials from cores from the Hanford 300 Area; and (3) field demonstration experiments at the DOEs Hanford 300 Area. In a synergistic add-on to our workplan, we analyzed data from field experiments performed at the DOE Naturita Site under a separate DOE SBR grant, on which PI Day-Lewis served as co-PI. Techniques developed for application to Hanford datasets also were applied to data from Naturita. 1. Introduction The Department of Energy (DOE) faces enormous scientific and engineering challenges associated with the remediation of legacy contamination at former nuclear weapons production facilities. Selection, design and optimization of appropriate site remedies (e.g., pump-and-treat, biostimulation, or monitored natural attenuation) requires reliable predictive models of radionuclide fate and transport; however, our current modeling capabilities are limited by an incomplete understanding of multi-scale mass transferits rates, scales, and the heterogeneity of controlling parameters. At many DOE sites, long tailing behavior, concentration rebound, and slower-than-expected cleanup are observed; these observations are all consistent with multi-scale mass transfer [Haggerty and Gorelick, 1995; Haggerty et al., 2000; 2004], which renders pump-and-treat remediation and biotransformation inefficient and slow [Haggerty and Gorelick, 1994; Harvey et al., 1994; Wilson, 1997]. Despite the importance of mass transfer, there are significant uncertainties associated with controlling parameters, and the prevalence of mass transfer remains a point of debate [e.g., Hill et al., 2006; Molz et al., 2006] for lack of experimental methods to verify and measure it in situ or independently of tracer breakthrough. There is a critical need for new field-experimental techniques to measure mass transfer in-situ and estimate multi-scale and spatially variable mass-transfer parame

Day-Lewis, Frederick; Singha, Kamini; Haggerty, Roy; Johnson, Tim; Binley, Andrew; Lane, John

2014-01-16T23:59:59.000Z

455

Explosives detection system and method  

DOE Patents [OSTI]

A method of detecting explosives in a vehicle includes providing a first rack on one side of the vehicle, the rack including a neutron generator and a plurality of gamma ray detectors; providing a second rack on another side of the vehicle, the second rack including a neutron generator and a plurality of gamma ray detectors; providing a control system, remote from the first and second racks, coupled to the neutron generators and gamma ray detectors; using the control system, causing the neutron generators to generate neutrons; and performing gamma ray spectroscopy on spectra read by the gamma ray detectors to look for a signature indicative of presence of an explosive. Various apparatus and other methods are also provided.

Reber, Edward L. (Idaho Falls, ID); Jewell, James K. (Idaho Falls, ID); Rohde, Kenneth W. (Idaho Falls, ID); Seabury, Edward H. (Idaho Falls, ID); Blackwood, Larry G. (Idaho Falls, ID); Edwards, Andrew J. (Idaho Falls, ID); Derr, Kurt W. (Idaho Falls, ID)

2007-12-11T23:59:59.000Z

456

Detecting phonon blockade with photons  

SciTech Connect (OSTI)

Measuring the quantum dynamics of a mechanical system, when few phonons are involved, remains a challenge. We show that a superconducting microwave resonator linearly coupled to the mechanical mode constitutes a very powerful probe for this scope. This new coupling can be much stronger than the usual radiation pressure interaction by adjusting a gate voltage. We focus on the detection of phonon blockade, showing that it can be observed by measuring the statistics of the light in the cavity. The underlying reason is the formation of an entangled state between the two resonators. Our scheme realizes a phonotonic Josephson junction, giving rise to coherent oscillations between phonons and photons as well as a self-trapping regime for a coupling smaller than a critical value. The transition from the self-trapping to the oscillating regime is also induced dynamically by dissipation.

Didier, Nicolas; Pugnetti, Stefano; Fazio, Rosario [NEST, Scuola Normale Superiore and Istituto di Nanoscienze - CNR, Pisa (Italy); Blanter, Yaroslav M. [Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft (Netherlands)

2011-08-01T23:59:59.000Z

457

Intrusion detection using secure signatures  

DOE Patents [OSTI]

A method and device for intrusion detection using secure signatures comprising capturing network data. A search hash value, value employing at least one one-way function, is generated from the captured network data using a first hash function. The presence of a search hash value match in a secure signature table comprising search hash values and an encrypted rule is determined. After determining a search hash value match, a decryption key is generated from the captured network data using a second hash function, a hash function different form the first hash function. One or more of the encrypted rules of the secure signatures table having a hash value equal to the generated search hash value are then decrypted using the generated decryption key. The one or more decrypted secure signature rules are then processed for a match and one or more user notifications are deployed if a match is identified.

Nelson, Trent Darnel; Haile, Jedediah

2014-09-30T23:59:59.000Z

458

Oxygen detection using evanescent fields  

DOE Patents [OSTI]

An apparatus and method for the detection of oxygen using optical fiber based evanescent light absorption. Methylene blue was immobilized using a sol-gel process on a portion of the exterior surface of an optical fiber for which the cladding has been removed, thereby forming an optical oxygen sensor. When light is directed through the optical fiber, transmitted light intensity varies as a result of changes in the absorption of evanescent light by the methylene blue in response to the oxygen concentration to which the sensor is exposed. The sensor was found to have a linear response to oxygen concentration on a semi-logarithmic scale within the oxygen concentration range between 0.6% and 20.9%, a response time and a recovery time of about 3 s, ant to exhibit good reversibility and repeatability. An increase in temperature from 21.degree. C. to 35.degree. C. does not affect the net absorption of the sensor.

Duan, Yixiang (Los Alamos, NM); Cao, Weenqing (Los Alamos, NM)

2007-08-28T23:59:59.000Z

459

Study of the decay asymmetry parameter and CP violation parameter in the Lambda(c)+ ---> Lambda pi+ decay  

SciTech Connect (OSTI)

Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement of the weak decay-asymmetry parameter a{sub {Lambda}{sub c}} in {Lambda}{sub c}{sup +} {yields} {Lambda}{pi}{sup +} decay. Comparing particle with antiparticle decays, we obtain the first measurement of the CP violation parameter {Alpha} {triple_bond} a{sub {Lambda}{sub c}} + a{sub {ovr {Lambda}{sub c}}}/a{sub {Lambda}{sub c}} - a{sub {ovr {Lambda}{sub c}}}. We obtain a{sub {Lambda}{sub c}} = -0.78 {+-} 0.16 {+-} 0.13 and {Alpha} = -0.07 {+-} 0.19 {+-} 0.12 where errors are statistical and systematic.

Link, J.M.; Yager, P.M.; /UC, Davis; Anjos, J.C.; Bediaga, I.; Castromonte, C.; Machado, A.A.; Magnin, J.; Massafferri, A.; de Miranda, J.M.; Pepe, I.M.; Polycarpo, E.; dos Reis, A.C.; /Rio de Janeiro, CBPF; Carrillo, S.; Casimiro, E.; Cuautle, E.; Sanchez-Hernandez, A.; Uribe, C.; Vazquez, F.; /CINVESTAV, IPN; Agostino, L.; Cinquini, L.; Cumalat,; /Colorado U. /Fermilab /Frascati /Guanajuato U. /Illinois U., Urbana /Indiana U. /Korea U. /Kyungpook Natl. U. /INFN, Milan /Milan U. /North Carolina U. /Pavia U. /INFN,

2005-09-01T23:59:59.000Z

460

E-Print Network 3.0 - aternate parameter values Sample Search...  

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

aternate parameter values Search Powered by Explorit Topic List Advanced Search Sample search results for: aternate parameter values Page: << < 1 2 3 4 5 > >> 1 ONTOLOGICAL...

Note: This page contains sample records for the topic "detection un parameter" 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

U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially...  

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

63: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code U-163: PHP Command Parameter Bug Lets Remote Users Obtain...

462

Sensitivity analysis of modeling parameters that affect the dual peaking behaviour in coalbed methane reservoirs.  

E-Print Network [OSTI]

??Coalbed methane reservoir (CBM) performance is controlled by a complex set of reservoir, geologic, completion and operational parameters and the inter-relationships between those parameters. Therefore (more)

Okeke, Amarachukwu Ngozi

2006-01-01T23:59:59.000Z

463

Nuclear Detection and Sensor Testing Center | Y-12 National Security...  

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

Detection and ... Nuclear Detection and Sensor Testing Center As part of our increased global nuclear nonproliferation efforts, Y-12 commissioned the Nuclear Detection and Sensor...

464

Parameter estimation for models of ligninolytic and cellulolytic enzyme kinetics  

SciTech Connect (OSTI)

While soil enzymes have been explicitly included in the soil organic carbon (SOC) decomposition models, there is a serious lack of suitable data for model parameterization. This study provides well-documented enzymatic parameters for application in enzyme-driven SOC decomposition models from a compilation and analysis of published measurements. In particular, we developed appropriate kinetic parameters for five typical ligninolytic and cellulolytic enzymes ( -glucosidase, cellobiohydrolase, endo-glucanase, peroxidase, and phenol oxidase). The kinetic parameters included the maximum specific enzyme activity (Vmax) and half-saturation constant (Km) in the Michaelis-Menten equation. The activation energy (Ea) and the pH optimum and sensitivity (pHopt and pHsen) were also analyzed. pHsen was estimated by fitting an exponential-quadratic function. The Vmax values, often presented in different units under various measurement conditions, were converted into the same units at a reference temperature (20 C) and pHopt. Major conclusions are: (i) Both Vmax and Km were log-normal distributed, with no significant difference in Vmax exhibited between enzymes originating from bacteria or fungi. (ii) No significant difference in Vmax was found between cellulases and ligninases; however, there was significant difference in Km between them. (iii) Ligninases had higher Ea values and lower pHopt than cellulases; average ratio of pHsen to pHopt ranged 0.3 0.4 for the five enzymes, which means that an increase or decrease of 1.1 1.7 pH units from pHopt would reduce Vmax by 50%. (iv) Our analysis indicated that the Vmax values from lab measurements with purified enzymes were 1 2 orders of magnitude higher than those for use in SOC decomposition models under field conditions.

Wang, Gangsheng [ORNL; Post, Wilfred M [ORNL; Mayes, Melanie [ORNL; Frerichs, Joshua T [ORNL; Jagadamma, Sindhu [ORNL

2012-01-01T23:59:59.000Z

465

Multi-parameter Laser Modes in Paraxial Optics  

E-Print Network [OSTI]

We study multi-parameter solutions of the inhomogeneous paraxial wave equation in a linear and quadratic approximation which include oscillating laser beams in a parabolic waveguide, spiral light beams, and other important families of propagation-invariant laser modes in weakly varying media. A similar effect of superfocusing of particle beams in a thin monocrystal film is also discussed. In the supplementary electronic material, we provide a computer algebra verification of the results presented here, and of some related mathematical tools that were stated without proofs in the literature.

Christoph Koutschan; Erwin Suazo; Sergei K. Suslov

2014-07-09T23:59:59.000Z

466

Note: Characteristic beam parameter for the line electron gun  

SciTech Connect (OSTI)

We have optimized the beam parameters of line source electron gun using Stanford Linear Accelerator Centre electron beam trajectory program (EGUN), utilizing electrostatic focusing only. We measured minimum beam diameter as 0.5 mm that corresponds to power density of 68.9 kW/cm{sup 2} at 13.5 mm in the post-anode region which is more than two-fold (33 kW/cm{sup 2}), of the previously reported results. The gun was operated for the validation of the theoretical results and found in good agreement. The gun is now without any magnetic and electrostatic focusing thus much simpler and more powerful.

Iqbal, M. [Centre for High Energy Physics, University of the Punjab, Lahore 45590 (Pakistan) [Centre for High Energy Physics, University of the Punjab, Lahore 45590 (Pakistan); Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); Islam, G. U. [Centre for High Energy Physics, University of the Punjab, Lahore 45590 (Pakistan)] [Centre for High Energy Physics, University of the Punjab, Lahore 45590 (Pakistan); Zhou, Z.; Chi, Y. [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)] [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)

2013-11-15T23:59:59.000Z

467

Signal processing for longitudinal parameters of the Tevatron beam  

SciTech Connect (OSTI)

We describe the system known as the Tevatron SBD [1] which is used to provide information on the longitudinal parameters of coalesced beam bunches in the Tevatron. The system has been upgraded over the past year with a new digitizer and improved software. The quantities provided for each proton and antiproton bunch include the intensity, the longitudinal bunch profile, the timing of the bunch with respect to the low-level RF, the momentum spread and the longitudinal emittance. The system is capable of 2 Hz operation and is run at 1 Hz.

Pordes, S.; Crisp, J.; Fellenz, B.; Flora, R.; Para, A.; Tollestrup, A.V.; /Fermilab

2005-05-01T23:59:59.000Z

468

The effect of soil parameters on earth penetration of projectiles  

E-Print Network [OSTI]

Constitutive Relationship for Earth Materials; 2& A Dynamic Elasto-Plastic Finite Element Analysis of Pro- jectile Penetration of a Half-Space; 3) The Dynamic Shearing Resistance of Clay as a Function of the Rate of Shear Deformation; 4) The Dynam...THE EFFECT OF SOIL PARAMETERS ON EARTH PENETRATION OF PROJECTILES A Thesis by George Harley Ferguson, I I I Submitted to the Graduate Col lege of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER...

Ferguson, George Harley

2012-06-07T23:59:59.000Z

469

Lindemann Parameters for solid Membranes focused on Carbon Nanotubes  

E-Print Network [OSTI]

Temperature fluctuations in the normal direction of planar crystals such as graphene are quite violent and may be expected to influence strongly their melting properties. In particular, they will modify the Lindemann melting criterium. We calculate this modification in a self-consistent Born approximation. The result is applied to graphene and its wrapped version represented by single-walled carbon nanotubes (SWNTs). It is found that the out-of-plane fluctuations dominate over the in-plane fluctuations. This makes strong restrictions to possible Lindemann parameters. Astonishing we find that these large out-of-plane fluctuations have only a small influence upon the melting temperature.

J. Dietel; H. Kleinert

2009-03-08T23:59:59.000Z

470

On the empirical statistics of parameter estimates in parametric modeling  

E-Print Network [OSTI]

FOR ESTIMATING HIGHLY DAMPED SINUSOIDAL SIGNALS IN ADDTIVE NOISE Page 4. 1 Introduction 4. 2 Eigenvector Method 4. 3 Weighted Least Squares Estimation of Damped Sinusoids Based on. Noise-Reduced Data 4. 3. 1 Noise Reduction with SVD 4. 3. 2 Weighted Least... Squares Method 4. 3. 3 Experimental Results 55 59 63 63 65 68 V CONCLUSIONS AND POSSIBLE EXTENSIONS REFERENCES 72 VITA 77 LIST OF TABLES Table 2. 1 The sample biases of the parameter estimates using Burg lattice method, in model one...

Zhu, Yao

1988-01-01T23:59:59.000Z

471

DEVELOPMENT OF VADOSE-ZONE HYDRAULIC PARAMETER VALUES  

SciTech Connect (OSTI)

Several approaches have been developed to establish a relation between the soil-moisture retention curve and readily available soil properties. Those relationships are referred to as pedotransfer functions. Described in this paper are the rationale, approach, and corroboration for use of a nonparametric pedotransfer function for the estimation of soil hydraulic-parameter values at the yucca Mountain area in Nevada for simulations of net infiltration. This approach, shown to be applicable for use at Yucca Mountain, is also applicable for use at the Hanford Site where the underlying data were collected.

ROGERS PM

2008-01-21T23:59:59.000Z

472

Outdoor PV Module Degradation of Current-Voltage Parameters: Preprint  

SciTech Connect (OSTI)

Photovoltaic (PV) module degradation rate analysis quantifies the loss of PV power output over time and is useful for estimating the impact of degradation on the cost of energy. An understanding of the degradation of all current-voltage (I-V) parameters helps to determine the cause of the degradation and also gives useful information for the design of the system. This study reports on data collected from 12 distinct mono- and poly-crystalline modules deployed at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. Most modules investigated showed < 0.5%/year decrease in maximum power due to short-circuit current decline.

Smith, R. M.; Jordan, D. C.; Kurtz, S. R.

2012-04-01T23:59:59.000Z

473

Inhalation Exposure Input Parameters for the Biosphere Model  

SciTech Connect (OSTI)

This analysis is one of the technical reports that support the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), referred to in this report as the biosphere model. ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes in detail the conceptual model as well as the mathematical model and its input parameters. This report documents development of input parameters for the biosphere model that are related to atmospheric mass loading and supports the use of the model to develop biosphere dose conversion factors (BDCFs). The biosphere model is one of a series of process models supporting the total system performance assessment (TSPA) for a Yucca Mountain repository. ''Inhalation Exposure Input Parameters for the Biosphere Model'' is one of five reports that develop input parameters for the biosphere model. A graphical representation of the documentation hierarchy for the biosphere model is presented in Figure 1-1 (based on BSC 2006 [DIRS 176938]). This figure shows the interrelationships among the products (i.e., analysis and model reports) developed for biosphere modeling and how this analysis report contributes to biosphere modeling. This analysis report defines and justifies values of atmospheric mass loading for the biosphere model. Mass loading is the total mass concentration of resuspended particles (e.g., dust, ash) in a volume of air. Mass loading values are used in the air submodel of the biosphere model to calculate concentrations of radionuclides in air inhaled by a receptor and concentrations in air surrounding crops. Concentrations in air to which the receptor is exposed are then used in the inhalation submodel to calculate the dose contribution to the receptor from inhalation of contaminated airborne particles. Concentrations in air surrounding plants are used in the plant submodel to calculate the concentrations of radionuclides in foodstuffs contributed from uptake by foliar interception. This report is concerned primarily with the physical attributes of airborne particulate matter, such as the airborne concentrations of particles and their sizes. The conditions of receptor exposure (duration of exposure in various microenvironments), breathing rates, and dosimetry of inhaled particulates are discussed in more detail in ''Characteristics of the Receptor for the Biosphere Model'' (BSC 2005 [DIRS 172827]).

M. Wasiolek

2006-06-05T23:59:59.000Z

474

Error estimates and specification parameters for functional renormalization  

SciTech Connect (OSTI)

We present a strategy for estimating the error of truncated functional flow equations. While the basic functional renormalization group equation is exact, approximated solutions by means of truncations do not only depend on the choice of the retained information, but also on the precise definition of the truncation. Therefore, results depend on specification parameters that can be used to quantify the error of a given truncation. We demonstrate this for the BCSBEC crossover in ultracold atoms. Within a simple truncation the precise definition of the frequency dependence of the truncated propagator affects the results, indicating a shortcoming of the choice of a frequency independent cutoff function.

Schnoerr, David [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)] [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany); Boettcher, Igor, E-mail: I.Boettcher@thphys.uni-heidelberg.de [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)] [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany); Pawlowski, Jan M. [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany) [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany); ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum fr Schwerionenforschung mbH, D-64291 Darmstadt (Germany); Wetterich, Christof [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)] [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)

2013-07-15T23:59:59.000Z

475

Effects of environmental parameters to total, quantum and classical correlations  

E-Print Network [OSTI]

We quantify the total, quantum, and classical correlations with entropic measures, and quantitatively compare these correlations in a quantum system, as exemplified by a Heisenberg dimer which is subjected to the change of environmental parameters: temperature and nonuniform external field. Our results show that the quantum correlation may exceed the classical correlation at some nonzero temperatures, though the former is rather fragile than the later under thermal fluctuation. The effect of the external field to the classical correlation is quite different from the quantum correlation.

Wen-Ling Chan; Jun-Peng Cao; Dong Yang; Shi-Jian Gu

2006-12-29T23:59:59.000Z

476

WIMP astronomy and particle physics with liquid-noble and cryogenic direct-detection experiments  

E-Print Network [OSTI]

Once weakly-interacting massive particles (WIMPs) are unambiguously detected in direct-detection experiments, the challenge will be to determine what one may infer from the data. Here, I examine the prospects for reconstructing the local speed distribution of WIMPs in addition to WIMP particle-physics properties (mass, cross sections) from next-generation cryogenic and liquid-noble direct-detection experiments. I find that the common method of fixing the form of the velocity distribution when estimating constraints on WIMP mass and cross sections means losing out on the information on the speed distribution contained in the data and may lead to biases in the inferred values of the particle-physics parameters. I show that using a more general, empirical form of the speed distribution can lead to good constraints on the speed distribution. Moreover, one can use Bayesian model-selection criteria to determine if a theoretically-inspired functional form for the speed distribution (such as a Maxwell-Boltzmann distribution) fits better than an empirical model. The shape of the degeneracy between WIMP mass and cross sections and their offset from the true values of those parameters depends on the hypothesis for the speed distribution, which has significant implications for consistency checks between direct-detection and collider data. In addition, I find that the uncertainties on theoretical parameters depends sensitively on the upper end of the energy range used for WIMP searches. Better constraints on the WIMP particle-physics parameters and speed distribution are obtained if the WIMP search is extended to higher energy (~ 1 MeV).

Annika H. G. Peter

2011-03-26T23:59:59.000Z

477

Combining power spectrum and bispectrum measurements to detect oscillatory features  

E-Print Network [OSTI]

The simplest inflationary models present us with few observable parameters to discriminate between them. A detection of features in the spectra of primordial density perturbations could provide valuable insights and lead to stringent tests of models of the early universe. So far, searches for oscillatory features have not produced statistically significant results. In this work we consider a combined search for features in the power spectrum and bispectrum. We show that possible dependencies between the estimates of feature model amplitudes based on the two and three-point correlators are largely statistically independent under the assumption of the null hypothesis of a nearly Gaussian featureless CMB. Building on this conclusion we propose an optimal amplitude estimator for a combined search and study the look-elsewhere effect in feature model surveys. In particular we construct analytic models for the distribution of amplitude estimates that allow for a reliable assessment of the significance of potential f...

Fergusson, J R; Shellard, E P S; Liguori, M

2014-01-01T23:59:59.000Z

478

Spot test kit for explosives detection  

DOE Patents [OSTI]

An explosion tester system comprising a body, a lateral flow membrane swab unit adapted to be removeably connected to the body, a first explosives detecting reagent, a first reagent holder and dispenser operatively connected to the body, the first reagent holder and dispenser containing the first explosives detecting reagent and positioned to deliver the first explosives detecting reagent to the lateral flow membrane swab unit when the lateral flow membrane swab unit is connected to the body, a second explosives detecting reagent, and a second reagent holder and dispenser operatively connected to the body, the second reagent holder and dispenser containing the second explosives detecting reagent and positioned to deliver the second explosives detecting reagent to the lateral flow membrane swab unit when the lateral flow membrane swab unit is connected to the body.

Pagoria, Philip F; Whipple, Richard E; Nunes, Peter J; Eckels, Joel Del; Reynolds, John G; Miles, Robin R; Chiarappa-Zucca, Marina L

2014-03-11T23:59:59.000Z

479

Error Detection, Factorization and Correction for Multi-View Scene Reconstruction from Aerial Imagery  

SciTech Connect (OSTI)

Scene reconstruction from video sequences has become a prominent computer vision research area in recent years, due to its large number of applications in fields such as security, robotics and virtual reality. Despite recent progress in this field, there are still a number of issues that manifest as incomplete, incorrect or computationally-expensive reconstructions. The engine behind achieving reconstruction is the matching of features between images, where common conditions such as occlusions, lighting changes and texture-less regions can all affect matching accuracy. Subsequent processes that rely on matching accuracy, such as camera parameter estimation, structure computation and non-linear parameter optimization, are also vulnerable to additional sources of error, such as degeneracies and mathematical instability. Detection and correction of errors, along with robustness in parameter solvers, are a must in order to achieve a very accurate final scene reconstruction. However, error detection is in general difficult due to the lack of ground-truth information about the given scene, such as the absolute position of scene points or GPS/IMU coordinates for the camera(s) viewing the scene. In this dissertation, methods are presented for the detection, factorization and correction of error sources present in all stages of a scene reconstruction pipeline from video, in the absence of ground-truth knowledge. Two main applications are discussed. The first set of algorithms derive total structural error measurements after an initial scene structure computation and factorize errors into those related to the underlying feature matching process and those related to camera parameter estimation. A brute-force local correction of inaccurate feature matches is presented, as well as an improved conditioning scheme for non-linear parameter optimization which applies weights on input parameters in proportion to estimated camera parameter errors. Another application is in reconstruction pre-processing, where an algorithm detects and discards frames that would lead to inaccurate feature matching, camera pose estimation degeneracies or mathematical instability in structure computation based on a residual error comparison between two different match motion models. The presented algorithms were designed for aerial video but have been proven to work across different scene types and camera motions, and for both real and synthetic scenes.

Hess-Flores, M

2011-11-10T23:59:59.000Z

480

Effect of radio frequency discharge power on dusty plasma parameters  

SciTech Connect (OSTI)

The parameters of a two-dimensional dusty plasma consisting of six, 9 mum diameter particles trapped inside a radio frequency (rf) plasma sheath have been measured as a function of rf power in a 13.5 mtorr (1.8 Pa) argon discharge. The center-of-mass and breathing frequencies are found by projecting the cluster's Brownian motion onto the associated normal mode. The center-of-mass frequency (i.e., radial confinement) is insensitive to rf power. The Debye shielding parameter kappa, as found from the breathing frequency, increases from approx =0.5 to 2 as the square root of rf power. The Debye length decreases from approx =2.7 to 0.7 mm as the inverse of the square root of rf power. The average particle charge qapprox =-17 000e is effectively independent of rf power. These results are consistent with an electron temperature that is independent of rf power and an ion density that is directly proportional to rf power, where the Debye length is determined by the ion density in combination with the electron temperature.

Sheridan, T. E. [Department of Physics and Astronomy, Ohio Northern University, Ada, Ohio 45810 (United States)

2009-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "detection un parameter" 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

Optimization of Process Parameters for Si Lateral PIN Photodiode  

E-Print Network [OSTI]

Abstract: This paper is about four optimization factors of process parameters, namely the intrinsic region length, photoabsorption layer thickness, the incident optical power and the bias voltage in a Si lateral pin-photodiode so as to obtain high frequency response and responsivity. Optimization of these parameters is based on Taguchi optimization method. In terms of simulation for the fabrication and device electrical characterization, ATHENA and ATLAS software from Silvaco Int. were used respectively. The identified factors have three best levels which give different combination based on L9 orthogonal array by Taguchi optimization method. In order to find the optimum factors and levels, signal-to-noise ratios (SNR) of larger-the-better (LTB) was applied. The analysis showed that the entire identified factors gave significant effect on the optical properties of the Si lateral pin-photodiode. It is revealed that the best result for responsivity and frequency response after the optimization approaches were 0.62A/W and 13.1 GHz respectively which respond to the optimized value for intrinsic region length of 6 m, photoabsorption layer thickness of 50 m, incident optical 2 power of 1 mW/cm and bias voltage of 3 V. As a conclusion, the optimum solution in achieving the desired high speed photodiode was successfully predicted using Taguchi optimization method. Key words: Taguchi method Photodiode Lateral p-i-n Simulation Silvaco

P. S. Menon; S. Kalthom Tasirin; Ibrahim Ahmad; S. Fazlili Abdullah

482

Research on Characteristic Parameters of Coal-dust Explosion  

Science Journals Connector (OSTI)

The parameters of explosive characteristics of the coal-dust are assessed systematically with the test device of minimum ignition temperature of dust clouds and 20L sphere explosion test units. The minimum ignition temperature of dust is a main safety index when handling combustible dusts in industrial production, and while hazard evaluation, the maximum explosion pressure and the explosion index are key parameters. Five kinds of coal-dust with different particle diameters were tested in order to determine the temperature sensitivity and the ferocity under the given conditions, which can be used as the criteria to classify dust explosion hazards. The experiment results indicate that the minimum ignition temperature of coal-dust cloud reduces with the decrease of particle diameter under temperature of (2935) K and powder spraying pressure of 0.08MPa, and when the particle size reduces to (25-48) ?m, the minimum ignition temperature is between (793-803)K; Besides that, the results can also show that minimum explosive concentration of coal-dust cloud is between 20 gm-3 and 30 gm-3under temperature of (2935) K, powder spraying pressure of 2MPa and ignition energy of 10kJ, the maximum explosion pressure is 0.45MPa and the maximum explosion index is 11.14 MPams-1, which classifies coal-dust explosion hazards to Level I. The conclusions drawn from the experimental results are of great significance to the safe application of these combustible substances.

Weiguo Cao; Liyuan Huang; Jianxin Zhang; Sen Xu; Shanshan Qiu; Feng Pan

2012-01-01T23:59:59.000Z

483

Supergravity, complex parameters and the Janis-Newman algorithm  

E-Print Network [OSTI]

The Demia\\'nski-Janis-Newman algorithm is an original solution generating technique. For a long time it has been limited to producing rotating solutions, restricting to the case of a metric and real scalar fields, despite the fact that Demia\\'nski extended it to include more parameters such as a NUT charge. Recently two independent prescriptions have been given for extending the algorithm to gauge fields and thus electrically charged configurations. In this paper we aim to end setting up the algorithm by providing a missing but important piece, which is how the transformation is applied to complex scalar fields. We illustrate our proposal through several examples taken from N=2 supergravity, including the stationary BPS solutions from Behrndt et al. and Sen's axion-dilaton rotating black hole. Moreover we discuss solutions that include pairs of complex parameters, such as the mass and the NUT charge, or the electric and magnetic charges, and we explain how to perform the algorithm in this context (with the ex...

Erbin, Harold

2015-01-01T23:59:59.000Z

484

Deconvolution of mixed gamma emitters using peak parameters  

SciTech Connect (OSTI)

When evaluating samples containing mixtures of nuclides using gamma spectroscopy the situation sometimes arises where the nuclides present have photon emissions that cannot be resolved by the detector. An example of this is mixtures of {sup 241}Am and plutonium that have L x-ray emissions with slightly different energies which cannot be resolved using a high-purity germanium detector. It is possible to deconvolute the americium L x-rays from those plutonium based on the {sup 241}Am 59.54 keV photon. However, this requires accurate knowledge of the relative emission yields. Also, it often results in high uncertainties in the plutonium activity estimate due to the americium yields being approximately an order of magnitude greater than those for plutonium. In this work, an alternative method of determining the relative fraction of plutonium in mixtures of {sup 241}Am and {sup 239}Pu based on L x-ray peak location and shape parameters is investigated. The sensitivity and accuracy of the peak parameter method is compared to that for conventional peak decovolution.

Gadd, Milan S [Los Alamos National Laboratory; Garcia, Francisco [Los Alamos National Laboratory; Magadalena, Vigil M [Los Alamos National Laboratory

2011-01-14T23:59:59.000Z

485

Biases on cosmological parameter estimators from galaxy cluster number counts  

E-Print Network [OSTI]

Sunyaev-Zel'dovich (SZ) surveys are promising probes of cosmology - in particular for Dark Energy (DE) -, given their ability to find distant clusters and provide estimates for their mass. However, current SZ catalogs contain tens to hundreds of objects and maximum likelihood estimators may present biases for such sample sizes. In this work we use the Monte Carlo approach to determine the presence of bias on cosmological parameter estimators from cluster abundance as a function of the area and depth of the survey, and the number of cosmological parameters fitted. Assuming perfect knowledge of mass and redshift some estimators have non-negligible biases. For example, the bias of $\\sigma_8$ corresponds to about $40%$ of its statistical error bar when fitted together with $\\Omega_c$ and $w_0$. Including a SZ mass-observable relation decreases the relevance of the bias, for the typical sizes of current surveys. The biases become negligible when combining the SZ data with other cosmological probes. However, we show that the biases from SZ estimators do not go away with increasing sample sizes and they may become the dominant source of error for an all sky survey at the South Pole Telescope (SPT) sensitivity. The results of this work validate the use of the current maximum likelihood methods for present SZ surveys, but highlight the need for further studies for upcoming experiments. [abridged

M. Penna-Lima; M. Makler; C. A. Wuensche

2013-12-16T23:59:59.000Z

486

Concealed Weapon Detection: a microwave imaging approach:.  

E-Print Network [OSTI]

??In the last years, there has been a renewed interest in security applications designed to detect potentially dangerous concealed object carried by an individual. In (more)

Carrer, L.

2012-01-01T23:59:59.000Z

487

Employee fraud detection under real world conditions.  

E-Print Network [OSTI]

??Employee fraud in financial institutions is a considerable monetary and reputational risk. Studies state that this type of fraud is typically detected by a tip, (more)

Luell, J

2010-01-01T23:59:59.000Z

488

Intrusion Detecting Using Secure Signatures - Energy Innovation...  

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

notice, patches, or a description of how to detect the security vulnerability, that may grant computer crackers information on the dangerous vulnerability. (DOE Case S-119,457)....

489

Transport Test Problems for Radiation Detection Scenarios  

SciTech Connect (OSTI)

This is the final report and deliverable for the project. It is a list of the details of the test cases for radiation detection scenarios.

Shaver, Mark W.; Miller, Erin A.; Wittman, Richard S.; McDonald, Benjamin S.

2012-09-30T23:59:59.000Z

490

Feature Detection in the Environmental Sciences  

E-Print Network [OSTI]

Detection 4.1 Wind Energy and4 Wind Energy and VortexAustralia, 2011. [132] 20% wind energy by 2030: Increasing

Shafii, Sohail S

2014-01-01T23:59:59.000Z

491

Explosives detection with a frequency modulation spectrometer  

Science Journals Connector (OSTI)

An explosives detection instrument was designed and tested at SRI International. The instrument uses frequency modulation spectroscopy with midinfrared lead-salt diode lasers to...

Riris, H; Carlisle, C B; McMillen, D F; Cooper, D E

1996-01-01T23:59:59.000Z

492

Radionuclide detection devices and associated methods  

DOE Patents [OSTI]

Radionuclide detection devices comprise a fluid cell comprising a flow channel for a fluid stream. A radionuclide collector is positioned within the flow channel and configured to concentrate one or more radionuclides from the fluid stream onto at least a portion of the radionuclide collector. A scintillator for generating scintillation pulses responsive to an occurrence of a decay event is positioned proximate at least a portion of the radionuclide collector and adjacent to a detection system for detecting the scintillation pulses. Methods of selectively detecting a radionuclide are also provided.

Mann, Nicholas R. (Rigby, ID); Lister, Tedd E. (Idaho Falls, ID); Tranter, Troy J. (Idaho Falls, ID)

2011-03-08T23:59:59.000Z

493

Communication error detection using facial expressions  

E-Print Network [OSTI]

Automatic detection of communication errors in conversational systems typically rely only on acoustic cues. However, perceptual studies have indicated that speakers do exhibit visual communication error cues passively ...

Wang, Sy Bor, 1976-

2008-01-01T23:59:59.000Z

494

Baseline 18F-FDG PET image derived parameters for therapy response prediction in oesophageal cancer  

E-Print Network [OSTI]

parameter and response was investigated using Kruskal-Wallis tests and receiver operating characteristic

Paris-Sud XI, Université de

495

U.N. Secretary General tells NREL Clean Energy a Top Priority | OpenEI  

Open Energy Info (EERE)

U.N. Secretary General tells NREL Clean Energy a Top Priority U.N. Secretary General tells NREL Clean Energy a Top Priority Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(1992) Super contributor 31 August, 2011 - 14:01 imported OpenEI National Renewable Energy Laboratory (Golden, ... In a recent visit to the National Renewable Energy Laboratory in Golden, Colorado, the United Nations Secretary General Ban Ki-Moon affirmed that the growing clean energy to reach billions of people across the globe is the top priority. Secretary General Ban Ki-Moon told researchers at NREL's Research Support Facility that NREL is playing a crucial role, through numerous U.N. partnerships, in making the world more sustainable. Ban believes that there is still much more growth needed to create a clean energy economy that will

496

CERN Offers UN Advice on Bringing Women into Science | Department of Energy  

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

CERN Offers UN Advice on Bringing Women into Science CERN Offers UN Advice on Bringing Women into Science CERN Offers UN Advice on Bringing Women into Science April 15, 2013 - 1:50pm Q&A What are your recommendations for engaging more women and girls in STEM careers? Tell Us Addthis Courtesy of: Michael Hoch / CERN Courtesy of: Michael Hoch / CERN Editor's Note: This article was originally published in Symmetry Magazine, a publication of the Office of Science, by Kelly Izlar. European physics laboratory CERN dedicated its first act as an observer to the United Nations General Assembly to addressing the disparity between the number of men and women who build careers in science. Graduate students Kate Pachal of the University of Oxford, Barbara Millan Mejias of the University of Zurich and Sarah Seif El Nasr from the

497

Carbothermic Synthesis of 820 m UN Kernels: Literature Review, Thermodynamics, Analysis, and Related Experiments  

SciTech Connect (OSTI)

The U.S. Department of Energy is considering a new nuclear fuel that would be less susceptible to ruptures during a loss-of-coolant accident. The fuel would consist of tristructural isotropic coated particles with large, dense uranium nitride (UN) kernels. This effort explores many factors involved in using gel-derived uranium oxide-carbon microspheres to make large UN kernels. Analysis of recent studies with sufficient experimental details is provided. Extensive thermodynamic calculations are used to predict carbon monoxide and other pressures for several different reactions that may be involved in conversion of uranium oxides and carbides to UN. Experimentally, the method for making the gel-derived microspheres is described. These were used in a microbalance with an attached mass spectrometer to determine details of carbothermic conversion in argon, nitrogen, or vacuum. A quantitative model is derived from experiments for vacuum conversion to an uranium oxide-carbide kernel.

Lindemer, Terrence [Harbach Engineering and Solutions] [Harbach Engineering and Solutions; Voit, Stewart L [ORNL] [ORNL; Silva, Chinthaka M [ORNL] [ORNL; Besmann, Theodore M [ORNL] [ORNL; Hunt, Rodney Dale [ORNL] [ORNL

2014-01-01T23:59:59.000Z

498

Direct Detection of Warm Dark Matter in the X-Ray  

Science Journals Connector (OSTI)

We point out a serendipitous link between warm dark matter (WDM) models for structure formation on the one hand and the high-sensitivity energy range (1-10 keV) for X-ray photon detection on the Chandra and XMM-Newton observatories on the other. This fortuitous match may provide either a direct detection of the dark matter or the exclusion of many candidates. We estimate expected X-ray fluxes from field galaxies and clusters of galaxies if the dark matter halos of these objects are composed of WDM candidate particles with rest masses in the structure formation-preferred range (~1 to ~20 keV) and with small radiative decay branches. Existing observations lead us to conclude that for singlet neutrinos (possessing a very small mixing with active neutrinos) to be a viable WDM candidate they must have rest masses 5 keV in the zero lepton number production mode. Future deeper observations may detect or exclude the entire parameter range for the zero lepton number case, perhaps restricting the viability of singlet neutrino WDM models to those where singlet production is driven by a significant lepton number. The Constellation X project has the capability to detect/exclude singlet neutrino WDM for lepton number values up to 10% of the photon number. We also consider diffuse X-ray background constraints on these scenarios. These same X-ray observations additionally may constrain parameters of active neutrino and gravitino WDM candidates.

Kevork Abazajian; George M. Fuller; Wallace H. Tucker

2001-01-01T23:59:59.000Z

499

Direct Detection of Warm Dark Matter in the X-ray  

E-Print Network [OSTI]

We point out a serendipitous link between warm dark matter (WDM) models for structure formation on the one hand and the high sensitivity energy range (1-10 keV) for x-ray photon detection on the Chandra and XMM-Newton observatories on the other. This fortuitous match may provide either a direct detection of the dark matter or exclusion of many candidates. We estimate expected x-ray fluxes from field galaxies and clusters of galaxies if the dark matter halos of these objects are composed of WDM candidate particles with rest masses in the structure formation-preferred range (~1 keV to ~20 keV) and with small radiative decay branches. Existing observations lead us to conclude that for singlet neutrinos (possessing a very small mixing with active neutrinos) to be a viable WDM candidate they must have rest masses < 5 keV in the zero lepton number production mode. Future deeper observations may detect or exclude the entire parameter range for the zero lepton number case, perhaps restricting the viability of singlet neutrino WDM models to those where singlet production is driven by a significant lepton number. The Constellation X project has the capability to detect/exclude singlet neutrino WDM for lepton number values up to 10% of the photon number. We also consider diffuse x-ray background constraints on these scenarios. These same x-ray observations additionally may constrain parameters of active neutrino and gravitino WDM candidates.

K. Abazajian; G. M. Fuller; W. H. Tucker

2001-05-31T23:59:59.000Z

500

Contamination d'un plasma d'argon par des vapeurs anodiques de cuivre P. Andanson et B. Cheminat  

E-Print Network [OSTI]

symboles Nous présentons une étude expérimentale sur la contamination d'un plasma d'arc par des vapeurs775 Contamination d'un plasma d'argon par des vapeurs anodiques de cuivre P. Andanson et B proche de l'anode en cuivre (1 mm à 1 cm) d'un arc stabilisé sous atmosphère d'argon (15 A et 30 A) est

Boyer, Edmond