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1

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.

2

An MDA approach to knowledge engineering  

Science Journals Connector (OSTI)

This paper proposes an MDA approach to knowledge engineering, centered on the CommonKADS knowledge model. The latter corresponds to the CIM level of MDA whereas PRR, which represents production rules and rulesets, corresponds to the PIM level. The paper ... Keywords: CommonKADS, Knowledge engineering, Knowledge model, Model-driven approach, Production rule, Production rule representation (PRR)

Nicolas Prat; Jacky Akoka; Isabelle Comyn-Wattiau

2012-09-01T23:59:59.000Z

3

Single-Molecule Detection with Active Transport.  

E-Print Network [OSTI]

??A glass capillary is used near the focal region of a custom-built confocal microscope to investigate the use of active transport for single-molecule detection in… (more)

Ball, David Allan

2006-01-01T23:59:59.000Z

4

Detecting active comets with SDSS  

SciTech Connect (OSTI)

Using a sample of serendipitously discovered active comets in the Sloan Digital Sky Survey (SDSS), we develop well-controlled selection criteria for greatly increasing the efficiency of comet identification in the SDSS catalogs. After follow-up visual inspection of images to reject remaining false positives, the total sample of SDSS comets presented here contains 19 objects, roughly one comet per 10 million other SDSS objects. The good understanding of selection effects allows a study of the population statistics, and we estimate the apparent magnitude distribution to r {approx} 18, the ecliptic latitude distribution, and the comet distribution in SDSS color space. The most surprising results are the extremely narrow range of colors for comets in our sample (e.g. root-mean-square scatter of only {approx}0.06 mag for the g-r color), and the similarity of comet colors to those of jovian Trojans. We discuss the relevance of our results for upcoming deep multi-epoch optical surveys such as the Dark Energy Survey, Pan-STARRS, and the Large Synoptic Survey Telescope (LSST), and estimate that LSST may produce a sample of about 10,000 comets over its 10-year lifetime.

Solontoi, Michael; Ivezic, Zeljko; /Washington U., Seattle, Astron. Dept.; West, Andrew A.; /MIT, MKI; Claire, Mark; /Washington U., Seattle, Astron. Dept.; Juric, Mario; /Princeton U. Observ.; Becker, Andrew; Jones, Lynne; /Washington U., Seattle, Astron. Dept.; Hall, Patrick B.; /York U., Canada; Kent, Steve; /Fermilab; Lupton, Robert H.; /Princeton U. Observ.; Quinn, Tom; /Washington U., Seattle, Astron. Dept. /Princeton U. Observ.

2010-12-01T23:59:59.000Z

5

Detecting insider activity using enhanced directory virtualization.  

SciTech Connect (OSTI)

Insider threats often target authentication and access control systems, which are frequently based on directory services. Detecting these threats is challenging, because malicious users with the technical ability to modify these structures often have sufficient knowledge and expertise to conceal unauthorized activity. The use of directory virtualization to monitor various systems across an enterprise can be a valuable tool for detecting insider activity. The addition of a policy engine to directory virtualization services enhances monitoring capabilities by allowing greater flexibility in analyzing changes for malicious intent. The resulting architecture is a system-based approach, where the relationships and dependencies between data sources and directory services are used to detect an insider threat, rather than simply relying on point solutions. This paper presents such an architecture in detail, including a description of implementation results.

Shin, Dongwan (New Mexico Tech, Socorro, NM); Claycomb, William R.

2010-07-01T23:59:59.000Z

6

Analyte detection using an active assay  

DOE Patents [OSTI]

Analytes using an active assay may be detected by introducing an analyte solution containing a plurality of analytes to a lacquered membrane. The lacquered membrane may be a membrane having at least one surface treated with a layer of polymers. The lacquered membrane may be semi-permeable to nonanalytes. The layer of polymers may include cross-linked polymers. A plurality of probe molecules may be arrayed and immobilized on the lacquered membrane. An external force may be applied to the analyte solution to move the analytes towards the lacquered membrane. Movement may cause some or all of the analytes to bind to the lacquered membrane. In cases where probe molecules are presented, some or all of the analytes may bind to probe molecules. The direction of the external force may be reversed to remove unbound or weakly bound analytes. Bound analytes may be detected using known detection types.

Morozov, Victor (Manassas, VA); Bailey, Charles L. (Cross Junction, VA); Evanskey, Melissa R. (Potomac Falls, VA)

2010-11-02T23:59:59.000Z

7

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

8

Active carbon filter health condition detection with piezoelectric wafer active sensors  

E-Print Network [OSTI]

Active carbon filter health condition detection with piezoelectric wafer active sensors Jingjing Chemical Biological Center, 5183 Blackhawk Road, APG, MD USA 21010 ABSTRACT The impregnated active carbon in active carbon filters by combining the electromechanical impedance spectroscopy (EMIS

Giurgiutiu, Victor

9

METHODOLOGY Open Access Detecting activity locations from raw GPS data  

E-Print Network [OSTI]

-based algorithm Benoit Thierry1 , Basile Chaix2,3 and Yan Kestens1,4* Abstract Background: Health studies and mHealth (GPS), Activity location detection, Kernel-based algorithm, Neighbourhood effects, MHealth, Activity

Paris-Sud XI, Université de

10

Mechanism of MDA5 Recognition of Short RNA Ligands and Crystal Structure of PepQ  

E-Print Network [OSTI]

....................................................................................19 Fig. 3: MDA5 HD expression ....................................................................................20 Fig. 4: MDA5 HDRD expression ...............................................................................21 Fig. 5: MDA... the published RIG-I HD structure (PDB ID: 4A2W; Fig. 1) [9] as a template and computationally generated by SWISS-Model. [15, 16] When the MDA5 model was overlaid on the RIG-I structure, MDA5 corresponded to the RIG-I HD with few deviations (RMS = 0.081, Fig...

Watts, Tylan Aubrey

2013-05-16T23:59:59.000Z

11

Structural and biochemical characterization of MdaB from cariogenic Streptococcus mutans reveals an NADPH-specific quinone oxidoreductase  

Science Journals Connector (OSTI)

The putative gene smu.1420 from S. mutans is demonstrated to encode the MdaB protein with NADPH-specific quinone oxidoreductase activity. Crystal structures of Smu.1420 with NADP+ and menadione reveal the substrate-selection and catalytic mechanisms, and shed light on future drug development against S. mutans.

Wang, Z.

2014-03-19T23:59:59.000Z

12

A Multidisciplinary Approach To Detect Active Pathways For Magma Migration  

Open Energy Info (EERE)

Multidisciplinary Approach To Detect Active Pathways For Magma Migration Multidisciplinary Approach To Detect Active Pathways For Magma Migration And Eruption At Mt Etna (Sicily, Italy) Before The 2001 And 2002-2003 Eruptions Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Multidisciplinary Approach To Detect Active Pathways For Magma Migration And Eruption At Mt Etna (Sicily, Italy) Before The 2001 And 2002-2003 Eruptions Details Activities (0) Areas (0) Regions (0) Abstract: Two strong flank eruptions occurred in July-August 2001 and from late October 2002 to late January 2003 at Mt. Etna volcano. The two eruptions mainly involved the upper southern flank of the volcano, a particularly active area during the last 30 years, damaging several tourist facilities and threatening some villages. The composite eruptive activity

13

SNM detection by active muon interrogation  

SciTech Connect (OSTI)

Muons are charged particles with mass between the electron and proton and can be produced indirectly through pion decay by interaction of a charged-particle beam with a target. There are several distinct features of the muon interaction with matter attractive as a probe for detection of SNM at moderate ranges. These include muon penetration of virtually any amount of material without significant nuclear interaction until stopped by ionization loss in a short distance. When stopped, high-energy penetrating x-rays (in the range of 6 MeV for uranium,) unique to isotopic composition are emitted in the capture process. The subsequent interaction with the nucleus produces additional radiation useful in assessing SNM presence. A focused muon beam can be transported through the atmosphere, at a range limited mainly by beam-size growth through scattering. A muonbeam intensity of > 10{sup 9} /second is required for efficient interrogation and, as in any other technique, dose limits are to be respected. To produce sufficient muons a high-energy (threshold {approx}140 MeV) high-intensity (<1 mA) proton or electron beam is needed implying the use of a linear accelerator to bombard a refractory target. The muon yield is fractionally small, with large angle and energy dispersion, so that efficient collection is necessary in all dimensions of phase space. To accomplish this Los Alamos has proposed a magnetic collection system followed by a unique linear accelerator that provides the requisite phase-space bunching and allows an energy sweep to successively stop muons throughout a large structure such as a sea-going vessel. A possible maritime application would entail fitting the high-gradient accelerators on a large ship with a helicopter-borne detection system. We will describe our experimental results for muon effects and particle collection along with our current design and program for a muon detection system.

Jason, Andrew J [Los Alamos National Laboratory; Miyadera, Haruo [Los Alamos National Laboratory; Turchi, Peter J [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

14

IAEA safeguards and detection of undeclared nuclear activities  

SciTech Connect (OSTI)

Verification of State declarations is an essential feature of IAEA safeguards. The issue of completeness of the declaration of all nuclear material, nuclear activities and nuclear facilities arises only in full scope safeguards, like those pursuant to NPT. Concentrating on the accountability aspect of nuclear material the NPT safeguards system has achieved a high level of objective and quantified performance. Some of the basic ideas of the drafters of INFCIRC/153(corrected) have been stalled. Non-proliferation concerns demand also for a detection probability for undeclared nuclear activities. Following the example of the Chemical Weapon Convention, advanced detection techniques are proposed, which go beyond the classical nuclear material accountability approach. Recent proposals for additional measures to strengthen IAEA safeguards conform to rules of NPT and related safeguards. Some proposals have been agreed generally, others can only be implemented on a voluntary basis between the State and the IAEA. The implementation will require additional resources and support for the IAEA. Great care is required to maintain the existing capability of the IAEA for a technically sound, independent, objective, and internationally acceptable judgment with available resources, and at the same time to change emphasis on certain elements of the existing safeguards system.

Harry, R.J.S. [Netherlands Energy Research Foundation ECN, Petten (Netherlands)

1993-12-31T23:59:59.000Z

15

Tubular Enhanced Geodesic Active Contours for Continuum Robot Detection using 3D Ultrasound  

E-Print Network [OSTI]

Tubular Enhanced Geodesic Active Contours for Continuum Robot Detection using 3D Ultrasound continuum robots in 3D ultrasound images. The proposed approach combines geodesic active contours Enhanced Geodesic Active Contours (TEGAC), is demonstrated through ex vivo intracardiac experiments

Dupont, Pierre

16

Screening of Receptor Antagonists Using Agonist-Activated Patch Clamp Detection in  

E-Print Network [OSTI]

Screening of Receptor Antagonists Using Agonist-Activated Patch Clamp Detection in Chemical 96 Go¨teborg, Sweden We present a capillary electrophoresis-patch clamp detection system optimized-spectrum glutamate receptor antagonist, were separated and detected by kainate-activated patch- clamped interneurons

Zare, Richard N.

17

Detection of low concentration oxygen containing functional groups on activated carbon fiber surfaces through fluorescent labeling  

E-Print Network [OSTI]

Detection of low concentration oxygen containing functional groups on activated carbon fiber of surface functional groups (OH, COOH and CHO) on activated carbon fiber surfaces. The chromophores were rights reserved. Keywords: Carbon fibers; X-ray photoelectron spectroscopy; Infrared spectroscopy

Borguet, Eric

18

Active cavitation detection of microbubble echocontrast agents in blood  

Science Journals Connector (OSTI)

Apfel’s active cavitation detector [Roy et al. J. Acoust. Soc. Am. 87 2451–2458 (1990)] has been improved to allow quantification of microbubble activity in reconstituted human blood. One?microsecond?long 20?MHz tone bursts are scattered from microbubbles undergoing transient cavitation at the focus of a pulsed 1?MHz transducer. The host medium consists either of human red blood cells suspended in autologous plasma or platelet?rich plasma with various concentrations of microbubble?based echocontrast agent present. The microbubble activity inferred from the backscattered tone bursts is compared to measured bioeffects (hemolysis platelet aggregation) in order to determine the physical basis for cavitational damage of blood components. Current results as a function of system parameters will be presented. [Work supported by NSF MSS?9253777.

Vilma E. Huertas; Inder Raj S. Makin; E. Carr Everbach

1994-01-01T23:59:59.000Z

19

Lightning activity on Titan: can Cassini detect it?  

Science Journals Connector (OSTI)

Although no lightning discharges were observed during the Voyager 1 flyby of Titan, this lack of evidence does not rule out the existence of lightning phenomena which could be detected by the Radio and Plasma Wave Science (RPWS) instrument on board of the Cassini spacecraft. The existence of lightning or other electromagnetic discharges has been suggested to explain the formation of hydrocarbons and nitriles in the context of Titan's complex organic chemistry. Although thunderclouds may be a rare phenomenon in Titan's lower atmosphere, recent investigations show that such clouds may cause temporary maximum electrical fields in the order of 2×106 V m?1 sufficient to initiate 20 km long Earth-like cloud-to-ground type 2 lightning strokes. Since such clouds are likely to be correlated with strong convection near the subsolar point, we expect possible lightning flashes to occur only on the dayside. Recent telescopic infrared observations have detected localized, high, short-lived clouds on Titan. We have calculated the flash characteristics, frequency spectrum, maximum spectral energy and the electromagnetic energy radiated into the troposphere by using a wave guide model of lightning currents for Titan's lightning strokes. Our study indicates that cloud-to-ground lightning strokes on Titan would be comparable with so-called type 2 lightning strokes on Earth. Their total radiated energy to the far field could be about 130 kJ and their maximum energy at a frequency of about 4 kHz. In order to estimate the capability of the Cassini/RPWS instrument to detect lightning discharges during several close Titan flybys, we distinguish the atmospheric regions, where the propagation of electromagnetic waves is unperturbed or where it is impossible. We found that the Cassini/RPWS instrument should be able to detect electromagnetic signals generated from a representative cloud-to-ground lightning stroke in Titan's lower atmosphere in a frequency range above 500 kHz or 1 \\{MHz\\} up to 200 Titan radii away. We suggest that for the search of lightning signals the RPWS high-frequency receiver HF2 with its H2-1E or H2-1E/F receiver modes and low integration times ?t of 10 or 20 ms should be chosen. Since the lightning flash rate might be low (<1 flash per hour) it is important to have long observation times. An analysis of all Cassini trajectories of Titan close flybys shows that the spacecraft would have the opportunity to observe Titan's dayside within 100 Titan radii during nearly all flybys. This time should be long enough, even if the lightning flash rate is low.

H. Lammer; T. Tokano; G. Fischer; W. Stumptner; G.J. Molina-Cuberos; K. Schwingenschuh; H.O. Rucker

2001-01-01T23:59:59.000Z

20

Learning Active Basis Model for Object Detection and Recognition  

Science Journals Connector (OSTI)

This article proposes an active basis model, a shared sketch algorithm, and a computational architecture of sum-max maps for representing, learning, and recognizing deformable templates. In our generative model, a deformable template is in the form of ... Keywords: Deformable template, Generative model, Shared sketch algorithm, Sum maps and max maps, Wavelet sparse coding

Ying Nian Wu; Zhangzhang Si; Haifeng Gong; Song-Chun Zhu

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

Active Learning via Sequential Design with Applications to Detection of Money Laundering  

E-Print Network [OSTI]

Active Learning via Sequential Design with Applications to Detection of Money Laundering Xinwei 28255 3 Corresponding author Abstract Money laundering is a process to conceal the true origin of funds agencies in a timely manner. However, detecting money laundering is not an easy job because of the huge

Deng, Xinwei

22

Recognizing Threat: A Simple Geometric Shape Activates Neural Circuitry for Threat Detection  

E-Print Network [OSTI]

Recognizing Threat: A Simple Geometric Shape Activates Neural Circuitry for Threat Detection the perception of threat. We here re- port that the neural circuitry known to be mobilized by many realistic instantiating detection of threat and negative affect, suggesting that recognition of potential danger may

Sarinopoulos, Issidoros

23

Adaptation of an enzyme-linked immunosorbent assay for detecting Brucella antibody activity in reindeer sera  

E-Print Network [OSTI]

ADAPTATION OF AN ENZYME-LINKED IMMUNOSORBENT ASSAY FOR DETECTING BRUCELLA ANTIBODY ACTIVITY IN REINDEER SERA A Thesis by DANA LYNN PERRY Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1982 Najor Subject: Veterinary Microbiology ADAPTATION OF AN ENZYME-LINKED IMMUNOSORBENT ASSAY FOR DETECTING BRUCELLA ANTIBODY ACTIVITY IN REINDEER SERA A Thesis by DANA LYNN PERRY Approved as to style...

Perry, Dana Lynn

2012-06-07T23:59:59.000Z

24

Modeling of activation data in the BrainMap TM database: Detection of outliers  

E-Print Network [OSTI]

Modeling of activation data in the BrainMap TM database: Detection of outliers Finn š Arup Nielsen@imm.dtu.dk 1 #12; ABSTRACT We describe a system for meta­analytical modeling of activation foci from functional neuroimaging studies. Our main vehicle is a set of density models in Talairach space capturing the distribution

Nielsen, Finn Ã?rup

25

A CMOS Active Pixel Sensor for Charged Particle Detection  

SciTech Connect (OSTI)

Active Pixel Sensor (APS) technology has shown promise for next-generation vertex detectors. This paper discusses the design and testing of two generations of APS chips. Both are arrays of 128 by 128 pixels, each 20 by 20 {micro}m. Each array is divided into sub-arrays in which different sensor structures (4 in the first version and 16 in the second) and/or readout circuits are employed. Measurements of several of these structures under Fe{sup 55} exposure are reported. The sensors have also been irradiated by 55 MeV protons to test for radiation damage. The radiation increased the noise and reduced the signal. The noise can be explained by shot noise from the increased leakage current and the reduction in signal is due to charge being trapped in the epi layer. Nevertheless, the radiation effect is small for the expected exposures at RHIC and RHIC II. Finally, we describe our concept for mechanically supporting a thin silicon wafer in an actual detector.

Matis, Howard S.; Bieser, Fred; Kleinfelder, Stuart; Rai, Gulshan; Retiere, Fabrice; Ritter, Hans George; Singh, Kunal; Wurzel, Samuel E.; Wieman, Howard; Yamamoto, Eugene

2002-12-02T23:59:59.000Z

26

Defining and transforming security rules in an MDA approach for DWs  

Science Journals Connector (OSTI)

Data Warehouses (DWs) store historical information which support the decision-making process. Since this information is crucial, it has to be protected from unauthorised accesses by defining security constraints in all stages of the DW development ... Keywords: DWs, MDA, OLAP, QVT, data warehouse security, data warehouses, metamodelling, model-driven architecture, multidimensional modelling, on-line analytical processing, query-view-, security rules, transformation

Carlos Blanco; Ignacio Garcia-Rodriguez de Guzman; Eduardo Fernandez-Medina; Juan Trujillo; Mario Piattini

2010-01-01T23:59:59.000Z

27

A novel active quenching circuit for single photon detection with Geiger mode avalanche photodiodes  

E-Print Network [OSTI]

In this paper we present a novel construction of an active quenching circuit intended for single photon detection. For purpose of evaluation, we have combined this circuit with a standard avalanche photodiode C30902S to form a single photon detector. A series of measurements, presented here, show that this single photon detector has a dead time of less than 40ns, maximum random counting frequency of over 14MHz, low after pulsing, detection efficiency of over 20% and a good noise performance. This simple and robust active quenching circuit can be built from of-the-shelf electronic components and needs no complicated adjustments.

Mario Stipcevic

2008-05-18T23:59:59.000Z

28

Method for improved selectivity in photo-activation and detection of molecular diagnostic agents  

DOE Patents [OSTI]

A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method includes the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein the at least one photo-activated molecular agent emits energy, detecting the energy emitted by the at least one photo-activated molecular agent, and producing a detected energy signal which is characteristic of the particular volume of plant or animal tissue. The present invention is also a method for the imaging of a particular volume of material, wherein the material contains at least one photo-active molecular agent.

Wachter, Eric A. (Oak Ridge, TN); Fisher, Walter G. (Knoxville, TN); Dees, H. Craig (Knoxville, TN)

1998-01-01T23:59:59.000Z

29

Methods for improved selectivity in photo-activation and detection of molecular diagnostic agents  

SciTech Connect (OSTI)

A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method comprises the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein the at least one photo-activated molecular agent emits energy, detecting the energy emitted by the at least one photo-activated molecular agent, and producing a detected energy signal which is characteristic of the particular volume of plant or animal tissue. The present invention also provides a method for the imaging of a particular volume of material, wherein the material contains at least one photo-active molecular agent.

Wachter, Eric A. (Oak Ridge, TN); Fisher, Walter G. (Knoxville, TN); Dees, H. Craig (Knoxville, TN)

2008-03-18T23:59:59.000Z

30

Detecting Eating Using a Wrist Mounted Device During Normal Daily Activities  

E-Print Network [OSTI]

Detecting Eating Using a Wrist Mounted Device During Normal Daily Activities Yujie Dong1, Adam method for automated monitoring of eating. Our method uses a single sensor that is worn on the wrist, similar in form to a watch. Wrist orientation was captured at a rate of 60 Hz for an entire day while four

Hoover, Adam

31

Corrosion Damage Detection with Piezoelectric Wafer Active Sensors Dustin Thomas, John Welter  

E-Print Network [OSTI]

1 Corrosion Damage Detection with Piezoelectric Wafer Active Sensors Dustin Thomas, John Welter Air a priority issue for today's Air Force. One of the most critical structural problems is corrosion. In fact the KC-135 now costs $1.2 billion a year to repair corrosion. In this paper, we plan to show the use

Giurgiutiu, Victor

32

Title: Corrosion Damage Detection with Piezoelectric Wafer Active Sensors Authors: Dustin T. Thomas  

E-Print Network [OSTI]

0 Title: Corrosion Damage Detection with Piezoelectric Wafer Active Sensors Authors: Dustin T structural problems is corrosion. In fact the KC-135 now costs $1.2 billion a year to repair corrosion) in a pitch-catch configuration. The sensors were placed on a grid pattern. Material loss through corrosion

Giurgiutiu, Victor

33

Nanogenerator as an active sensor for vortex capture and ambient wind-velocity detection  

E-Print Network [OSTI]

and mechanical (wind, water flow, vibration, friction and body movement) energies are common in the ambientNanogenerator as an active sensor for vortex capture and ambient wind-velocity detection Rui Zhang principle, ambient wind-speed measurements with the NG are demonstrated. Due to the simple structure, high

Wang, Zhong L.

34

Baseline geochemistry of soil and bedrock Tshirege Member of the Bandelier Tuff at MDA-P  

SciTech Connect (OSTI)

This report provides baseline geochemistry for soils (including fill), and for bedrock within three specific areas that are planned for use in the remediation of Material Disposal Area P (MDA-P) at Technical Area 16 (TA-16). The baseline chemistry includes leachable element concentrations for both soils and bedrock and total element concentrations for all soil samples and for two selected bedrock samples. MDA-P operated from the early 1950s to 1984 as a landfill for rubble and debris generated by the burning of high explosives (HE) at the TA-16 Burning Ground, HE-contaminated equipment and material, barium nitrate sand, building materials, and trash. The aim of this report is to establish causes for recognizable chemical differences between the background and baseline data sets. In many cases, the authors conclude that recognizable differences represent natural enrichments. In other cases, differences are best attributed to analytical problems. But most importantly, the comparison of background and baseline geochemistry demonstrates significant contamination for several elements not only at the two remedial sites near the TA-16 Burning Ground, but also within the entire region of the background study. This contamination is highly localized very near to the surface in soil and fill, and probably also in bedrock; consequently, upper tolerance limits (UTLs) calculated as upper 95% confidence limits of the 95th percentile are of little value and thus are not provided. This report instead provides basic statistical summaries and graphical comparisons for background and baseline samples to guide strategies for remediation of the three sites to be used in the restoration of MDA-P.

Warren, R.G.; McDonald, E.V.; Ryti, R.T.

1997-08-01T23:59:59.000Z

35

Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds  

DOE Patents [OSTI]

A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the light emitted from the complex will indicate the presence of the contaminant. A probe containing the photo-activator has an excitation light interface and a contaminant interface. One particular embodiment uses a porous membrane as the contaminant interface, so that the contaminant can migrate therethrough to the photo-activator and thereby form the complex.

Dinh, Tuan V. (Knoxville, TN)

1996-01-01T23:59:59.000Z

36

Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds  

DOE Patents [OSTI]

A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the light emitted from the complex will indicate the presence of the contaminant. A probe containing the photo-activator has an excitation light interface and a contaminant interface. One particular embodiment uses a porous membrane as the contaminant interface, so that the contaminant can migrate there through to the photo-activator and thereby form the complex. 23 figs.

Dinh, T.V.

1996-06-11T23:59:59.000Z

37

Methods, microfluidic devices, and systems for detection of an active enzymatic agent  

DOE Patents [OSTI]

Embodiments of the present invention provide methods, microfluidic devices, and systems for the detection of an active target agent in a fluid sample. A substrate molecule is used that contains a sequence which may cleave in the presence of an active target agent. A SNAP25 sequence is described, for example, that may be cleaved in the presence of Botulinum Neurotoxin. The substrate molecule includes a reporter moiety. The substrate molecule is exposed to the sample, and resulting reaction products separated using electrophoretic separation. The elution time of the reporter moiety may be utilized to identify the presence or absence of the active target agent.

Sommer, Gregory J; Hatch, Anson V; Singh, Anup K; Wang, Ying-Chih

2014-10-28T23:59:59.000Z

38

Stellar activity as noise in exoplanet detection I. Methods and application to solar-like stars and activity cycles  

E-Print Network [OSTI]

The detection of exoplanets using any method is prone to confusion due to the intrinsic variability of the host star. We investigate the effect of cool starspots on the detectability of the exoplanets around solar-like stars using the radial velocity method. For investigating this activity-caused "jitter" we calculate synthetic spectra using radiative transfer, known stellar atomic and molecular lines, different surface spot configurations, and an added planetary signal. Here, the methods are described in detail, tested and compared to previously published studies. The methods are also applied to investigate the activity jitter in old and young solar-like stars, and over a solar-like activity cycles. We find that the mean full jitter amplitude obtained from the spot surfaces mimicking the solar activity varies during the cycle approximately between 1 m/s and 9 m/s. With a realistic observing frequency a Neptune mass planet on a one year orbit can be reliably recovered. On the other hand, the recovery of an Ea...

Korhonen, H; Piskunov, N; Hackman, T; Juncher, D; Jarvinen, S P; Joergensen, U G

2015-01-01T23:59:59.000Z

39

Chemical hazard evaluation of material disposal area (MDA) B closure project  

SciTech Connect (OSTI)

TA-21, MDA-B (NES) is the 'contaminated dump,' landfill with radionuclides and chemicals from process waste disposed in 1940s. This paper focuses on chemical hazard categorization and hazard evaluation of chemicals of concern (e.g., peroxide, beryllium). About 170 chemicals were disposed in the landfill. Chemicals included products, unused and residual chemicals, spent, waste chemicals, non-flammable oils, mineral oil, etc. MDA-B was considered a High hazard site. However, based on historical records and best engineering judgment, the chemical contents are probably at best 5% of the chemical inventory. Many chemicals probably have oxidized, degraded or evaporated for volatile elements due to some fire and limited shelf-life over 60 yrs, which made it possible to downgrade from High to Low chemical hazard site. Knowing the site history and physical and chemical properties are very important in characterizing a NES site. Public site boundary is only 20 m, which is a major concern. Chemicals of concern during remediation are peroxide that can cause potential explosion and beryllium exposure due to chronic beryllium disease (CBD). These can be prevented or mitigated using engineering control (EC) and safety management program (SMP) to protect the involved workers and public.

Laul, Jadish C [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

40

Innovative high pressure gas MEM's based neutron detector for ICF and active SNM detection.  

SciTech Connect (OSTI)

An innovative helium3 high pressure gas detection system, made possible by utilizing Sandia's expertise in Micro-electrical Mechanical fluidic systems, is proposed which appears to have many beneficial performance characteristics with regards to making these neutron measurements in the high bremsstrahlung and electrical noise environments found in High Energy Density Physics experiments and especially on the very high noise environment generated on the fast pulsed power experiments performed here at Sandia. This same system may dramatically improve active WMD and contraband detection as well when employed with ultrafast (10-50 ns) pulsed neutron sources.

Martin, Shawn Bryan; Derzon, Mark Steven; Renzi, Ronald F.; Chandler, Gordon Andrew

2007-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

A NEW MULTI-BAND RADIAL VELOCITY TECHNIQUE FOR DETECTING EXOPLANETS AROUND ACTIVE STARS  

SciTech Connect (OSTI)

The radial velocity (RV) technique is one of the most efficient ways of detecting exoplanets. However, large RV jitters induced by starspots on an active star can inhibit detection of any exoplanet present or even lead to a false positive detection. This paper presents a new multi-band RV technique capable of substantially reducing starspot-induced RV jitters from stellar RV measurements to allow efficient and accurate extraction of RV signals caused by exoplanets. It takes full advantage of the correlation of RV jitters at different spectral bands and the independence of exoplanet signals at the corresponding bands. Simulations with a single-spot model and a multi-spot model have been conducted to investigate the RV jitter reduction capability of this method. The results show that this method can reduce the RV jitter amplitude by at least an order of magnitude, allowing detection of weaker exoplanet signals without significantly increasing RV observation time and cadence. This method can greatly reduce the observation time required to detect Earth-like planets around solar type stars with {approx}0.1 m s{sup -1} long term Doppler precision if spot-induced jitter is the dominant astrophysical noise source for RV measurements. This method can work efficiently for RV jitter removal if: (1) all the spots on a target star have approximately the same temperature during RV observations; (2) the RV jitter amplitude changes with wavelength, i.e., the RV jitter amplitude ratio, {alpha}, between two different spectral bands is not close to one; (3) the spot-induced RV jitter dominates the RV measurement error.

Ma Bo; Ge Jian, E-mail: boma@astro.ufl.edu, E-mail: jge@astrto.ufl.edu [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611 (United States)

2012-05-10T23:59:59.000Z

42

The Third Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope  

E-Print Network [OSTI]

The third catalog of active galactic nuclei (AGNs) detected by the Fermi-LAT (3LAC) is presented. It is based on the third Fermi-LAT catalog (3FGL) of sources detected with a test statistic (TS) greater than 25, using the first 4 years of data. The 3LAC includes 1591 AGNs located at high Galactic latitudes (|b|>10{\\deg}), which is a 71% increase over the second catalog that was based on 2 years of data. There are 28 duplicate associations (two counterparts to the same gamma-ray source), thus 1563 of the 2192 high-latitude gamma-ray sources of the 3FGL catalog are AGNs. A very large majority of these AGNs (98%) are blazars. About half of the newly detected blazars are of unknown type, i.e., they lack spectroscopic information of sufficient quality to determine the strength of their emission lines. Based on their spectral properties, these sources are evenly split between FSRQs and BL~Lacs. The general properties of the 3LAC sample confirm previous findings from earlier catalogs, but some new subclasses (e.g., ...

Ackermann, M; Atwood, W; Baldini, L; Ballet, J; Barbiellini, G; Bastieri, D; Gonzalez, J; Bellazzini, R; Bissaldi, E; Blandford, R; Bloom, E; Bonino, R; Bottacini, E; Brandt, T; Bregeon, J; Britto, R; Bruel, P; Buehler, R; Buson, S; Caliandro, G; Cameron, R; Caragiulo, M; Caraveo, P; Casandjian, J; Cavazzuti, E; Cecchi, C; Charles, E; Chekhtman, A; Cheung, C; Chiang, J; Chiaro, G; Ciprini, S; Claus, R; Cohen-Tanugi, J; Cominsky, L; Conrad, J; Cutini, S; D'Abrusco, R; D'Ammando, F; Angelis, A; Desiante, R; Digel, S; Venere, L; Drell, P; Favuzzi, C; Fegan, S; Ferrara, E; Finke, J; Focke, W; Franckowiak, A; Fuhrmann, L; Furniss, A; Fusco, P; Gargano, F; Gasparrini, D; Giglietto, N; Giommi, P; Giordano, F; Giroletti, M; Glanzman, T; Godfrey, G; Grenier, I; Grove, J; Guiriec, S; Hewitt, J W; Hill, A; Horan, D; J'ohannesson, G; Johnson, A; Johnson, W; Kataoka, J; Kuss, M; Mura, G; Larsson, S; Latronico, L; Leto, C; Li, J; Li, L; Longo, F; Loparco, F; Lott, B; Lovellette, M; Lubrano, P; Madejski, G; Mayer, M; Mazziotta, M; McEnery, J; Michelson, P; Mizuno, T; Moiseev, A; Monzani, M; Morselli, A; Moskalenko, I; Murgia, S; Nuss, E; Ohno, M; Ohsugi, T; Ojha, R; Omodei, N; Orienti, M; Orlando, E; Paggi, A; Paneque, D; Perkins, J; Pesce-Rollins, M; Piron, F; Pivato, G; Porter, T; Rain`o, S; Rando, R; Razzano, M; Razzaque, S; Reimer, A; Reimer, O; Romani, R; Salvetti, D; Schaal, M; Schinzel, F; Schulz, A; Sgr`o, C; Siskind, E; Sokolovsky, K; Spada, F; Spandre, G; Spinelli, P; Stawarz, L; Suson, D; Takahashi, H; Takahashi, T; Tanaka, Y; Thayer, J; Thayer, J; Tibaldo, L; Torres, D; Torresi, E; Tosti, G; Troja, E; Uchiyama, Y; Vianello, G; Winer, B; Wood, K; Zimmer, S

2015-01-01T23:59:59.000Z

43

Active acoustic monitoring systems for detecting, localizing, tracking, and classifying marine mammals and fish.  

Science Journals Connector (OSTI)

Detection localization tracking and classification (DLTC) of marine mammals and fish is necessary for a wide range of bioacoustic studies. This includes those related to understanding anthropogenic effects and to the development of methods for mitigating harm. Active acoustic monitoring (AAM) is a robust method for monitoring marine life as it can detect and accurately localize a silent target enabling full DLTC. With the growth of the offshore renewable energy industry and the need to mitigate harm from pile driving seismic surveys and military sonar operations there is strong interest in developing AAM systems and integrating them with current mitigation techniques. There are a host of significant issues including the standard sonar problems of reverberation and propagation in high?clutter shallow water environments false alarms classification methods of deployment and cost. Furthermore AAM systems transmit acoustic energy that has the potential to disturb marine life. Much work lies ahead to develop systems that balance the risks benefits performance and costs. This paper will review the status and issues of AAM systems. This includes a discussion of implemented near?field (imaging) and far?field (tracking) systems experimental results and plans for further development testing integration and permitting.

Peter J. Stein

2011-01-01T23:59:59.000Z

44

A framework for activity detection in wide-area motion imagery  

SciTech Connect (OSTI)

Wide-area persistent imaging systems are becoming increasingly cost effective and now large areas of the earth can be imaged at relatively high frame rates (1-2 fps). The efficient exploitation of the large geo-spatial-temporal datasets produced by these systems poses significant technical challenges for image and video analysis and data mining. In recent years there has been significant progress made on stabilization, moving object detection and tracking and automated systems now generate hundreds to thousands of vehicle tracks from raw data, with little human intervention. However, the tracking performance at this scale, is unreliable and average track length is much smaller than the average vehicle route. This is a limiting factor for applications which depend heavily on track identity, i.e. tracking vehicles from their points of origin to their final destination. In this paper we propose and investigate a framework for wide-area motion imagery (W AMI) exploitation that minimizes the dependence on track identity. In its current form this framework takes noisy, incomplete moving object detection tracks as input, and produces a small set of activities (e.g. multi-vehicle meetings) as output. The framework can be used to focus and direct human users and additional computation, and suggests a path towards high-level content extraction by learning from the human-in-the-loop.

Porter, Reid B [Los Alamos National Laboratory; Ruggiero, Christy E [Los Alamos National Laboratory; Morrison, Jack D [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

45

MDA-7 (Interleukin-24) Inhibits the Proliferation of Renal Carcinoma Cells and Interacts with Free Radicals to Promote Cell Death and Loss of Reproductive Capacity  

Science Journals Connector (OSTI)

...RCC, renal cell carcinoma; CAR, coxsackievirus and adenovirus...a recombinant replication defective adenovirus, Ad.mda-7...adenoviruses that recognize the CAR, because RCC lines appeared to express low levels of CAR (9). The lack of CAR expression...

Adly Yacoub; Clint Mitchell; Jessica Brannon; Elizabeth Rosenberg; Liang Qiao; Robert McKinstry; W. Marston Linehan; Zao-shong Su; Devanand Sarkar; Irina V. Lebedeva; Kristoffer Valerie; Rahul V. Gopalkrishnan; Steven Grant; Paul B. Fisher; and Paul Dent

2003-07-01T23:59:59.000Z

46

Abstract--Efficient methods for detecting electricity fraud has been an active research area in recent years. This paper presents  

E-Print Network [OSTI]

1 Abstract--Efficient methods for detecting electricity fraud has been an active research area for electric utilities using Genetic Algorithm (GA) and Support Vector Machine (SVM). The main motivation, genetic algorithm, electricity theft, non-technical loss, load profile. I. INTRODUCTION LECTRIC utilities

Ducatelle, Frederick

47

Context dependent reversion of tumor phenotype by connexin-43 expression in MDA-MB231 cells and MCF-7 cells: Role of ?-catenin/connexin43 association  

SciTech Connect (OSTI)

Connexins (Cx), gap junction (GJ) proteins, are regarded as tumor suppressors, and Cx43 expression is often down regulated in breast tumors. We assessed the effect of Cx43 over-expression in 2D and 3D cultures of two breast adenocarcinoma cell lines: MCF-7 and MDA-MB-231. While Cx43 over-expression decreased proliferation of 2D and 3D cultures of MCF-7 by 56% and 80% respectively, MDA-MB-231 growth was not altered in 2D cultures, but exhibited 35% reduction in 3D cultures. C-terminus truncated Cx43 did not alter proliferation. Untransfected MCF-7 cells formed spherical aggregates in 3D cultures, and MDA-MB-231 cells formed stellar aggregates. However, MCF-7 cells over-expressing Cx43 formed smaller sized clusters and Cx43 expressing MDA-MB-231 cells lost their stellar morphology. Extravasation ability of both MCF-7 and MDA-MB-231 cells was reduced by 60% and 30% respectively. On the other hand, silencing Cx43 in MCF10A cells, nonneoplastic human mammary cell line, increased proliferation in both 2D and 3D cultures, and disrupted acinar morphology. Although Cx43 over-expression did not affect total levels of ?-catenin, ?-catenin and ZO-2, it decreased nuclear levels of ?-catenin in 2D and 3D cultures of MCF-7 cells, and in 3D cultures of MDA-MB-231 cells. Cx43 associated at the membrane with ?-catenin, ?-catenin and ZO-2 in 2D and 3D cultures of MCF-7 cells, and only in 3D conditions in MDA-MB-231 cells. This study suggests that Cx43 exerts tumor suppressive effects in a context-dependent manner where GJ assembly with ?-catenin, ?-catenin and ZO-2 may be implicated in reducing growth rate, invasiveness, and, malignant phenotype of 2D and 3D cultures of MCF-7 cells, and 3D cultures of MDA-MB-231 cells, by sequestering ?-catenin away from nucleus. - Highlights: • Cx43 over-expressing MCF-7 and MDA-MB-231 were grown in 2D and 3D cultures. • Proliferation and growth morphology were affected in a context dependent manner. • Extravasation ability of both MCF-7 and MDA-MB-231 cells was reduced. • Cx43-mediated gap junction complex assembly correlated with observed changes. • We propose that membranous Cx43 sequesters ?-catenin away from the nucleus.

Talhouk, Rabih S., E-mail: rtalhouk@aub.edu.lb [Department of Biology, Faculty of Arts and Sciences, American University of Beirut, P.O. Box 11-0236, Beirut (Lebanon); Fares, Mohamed-Bilal; Rahme, Gilbert J.; Hariri, Hanaa H.; Rayess, Tina; Dbouk, Hashem A.; Bazzoun, Dana; Al-Labban, Dania [Department of Biology, Faculty of Arts and Sciences, American University of Beirut, P.O. Box 11-0236, Beirut (Lebanon); El-Sabban, Marwan E., E-mail: me00@aub.edu.lb [Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, P.O. Box 11-0236, Beirut (Lebanon)

2013-12-10T23:59:59.000Z

48

E-Print Network 3.0 - active snm detection Sample Search Results  

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

- database Duplicate detection, entity resolution... ordered) JCDL 2007 12;2 Conference Name Here 7 Sorted Neighborhood Method (SNM) classical method simple... window sizes...

49

Disbond detection in adhesively-bonded structures using piezoelectric wafer active sensors  

E-Print Network [OSTI]

, Structural Health Monitoring, Damage Detection, NDE 1 INTRODUCTION With an increasing use of adhesively in this direction and nondestructive evaluation (NDE) methods are successfully used for damage detection and damage, guided waves used for NDE have shown encouraging results and are becoming more popular in the NDE field

Giurgiutiu, Victor

50

Adaptive filtering to reduce global interference in evoked brain activity detection: a human subject case study  

E-Print Network [OSTI]

Following previous Monte Carlo simulations, we describe in detail an example of detecting evoked visual hemodynamic responses in a human subject as a preliminary demonstration of the novel global interference cancellation ...

Zhang, Quan

51

activities  

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

Detecting Things We Cannot See: Learning the Concepts of Control and Detecting Things We Cannot See: Learning the Concepts of Control and Variable in an Experiment Submitted by Anita Brook-Dupree, 1996 TRAC teacher at Fermilab, Teacher, Alternative Middle Years School, Philadelphia, PA. Particle physicists at Fermilab in Batavia, Illinois are faced with the problem of detecting the presence of sub-atomic particles they cannot see. During my summer as a TRAC teacher at Fermilab, I tried to think of ways to teach middle school students about things we cannot see. I want to thank my nine-year-old daughter Gia for the idea for the following activity. I was lamenting that I could not come up with ideas of how to relate the work of Fermilab scientists to anything that my students would understand. Then I was reminded by my daughter, that when I brought her to school on the

52

Evolution of MDA-5/RIG-I-dependent innate immunity: Independent evolution by domain grafting  

Science Journals Connector (OSTI)

...proteins. Abbreviations: csp, caspase; cdf...Abbreviations: cdf, CARDif; csp, caspase. Solid black...mechanism that existed before plants and animals diverged . Mol Biol...Activation of the interferon system by short-interfering...RNA Helicases chemistry classification genetics Evolution...

Devanand Sarkar; Rob DeSalle; Paul B. Fisher

2008-01-01T23:59:59.000Z

53

E-Print Network 3.0 - active fault detection Sample Search Results  

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

the adjudged or hypothesized cause... of an error. A fault is active ... Source: Powell, David - Laboratoire d'Analyse et d'Architecture des Systmes du CNRS Collection:...

54

GMAD: Graph-based Malware Activity Detection by DNS traffic analysis  

Science Journals Connector (OSTI)

Malicious activities on the Internet are one of the most dangerous threats to Internet users and organizations. Malicious software controlled remotely is addressed as one of the most critical methods for executing the malicious activities. Since blocking ... Keywords: Botnet, DNS, Graph clustering, Malware domain name, Sequential correlation

Jehyun Lee, Heejo Lee

2014-08-01T23:59:59.000Z

55

Surface-activated microtiter-plate microarray for simultaneous CRP quantification and viral antibody detection  

Science Journals Connector (OSTI)

Microarrays are widely used in high-throughput DNA and RNA hybridization tests and recently adopted to protein and small molecule interaction studies in basic research and diagnostics. Parallel detection of serum antibodies and antigens has several potential applications in epidemiologic research, vaccine development, and in the diagnosis of allergies, autoimmunity, and infectious diseases. This study demonstrates an immobilization method for immunoassay-based microarray in conventional 96-well polystyrene plates for a serologic diagnostic method combined with quantitative C-reactive protein (CRP) assay. A synthetic peptide (HIV-1), a recombinant protein (Puumala hantavirus nucleocapsid), and purified virus preparations (Sindbis and adenoviruses) were used as antigens for virus-specific antibody detection and monoclonal anti-CRP antibody for antigen detection. The microarray was based on conventional enzyme immunoassays and densitometry from photographed results. Peptide and recombinant antigens functioned well, while whole virus antigens gave discrepant results in 1 out of 23 samples from the reference method, tested with human sera with various antibody responses. The CRP results were in concordance in the concentration range 0.5–150 mg/L with 2 commercially available CRP assays: ReaScan rapid test (R2 = 0.9975) and Cobas 6000 analyzer (R2 =0.9595). The results indicate that microtiter plates provide a promising platform for further development of microarrays for parallel antibody and antigen detection.

Sari M. Viitala; Anne J. Jääskeläinen; Eira Kelo; Helena Sirola; Kirsi Moilanen; Jukka Suni; Antti Vaheri; Olli Vapalahti; Ale Närvänen

2013-01-01T23:59:59.000Z

56

Multi-mode Damage Detection Methods with Piezoelectric Wafer Active Sensors  

E-Print Network [OSTI]

modes structural health monitoring (SHM) and non- destructive evaluation (NDE) simply by changing the driving frequencies. This paper presents research results obtained by using PWAS transducer for SHM/NDE impedance measurements; (3) PWAS ultrasonic SHM/NDE; and (4) PWAS multi-mode corrosion detection

Giurgiutiu, Victor

57

Fault location by radon and mercury detection at an active volcano in Nicaragua  

Science Journals Connector (OSTI)

... Radon was detected using a sensitive film enclosed in Track Etch Detector Cups which were buried ... -30 days. Analyses of the tracks on the film were performed by the manufacturer. Radon is reported as tracks per mm2 per 30 days (0.91 tracks per mm2 ...

William B. Crenshaw; Stanley N. Williams; Richard E. Stoiber

1982-11-25T23:59:59.000Z

58

Optimization of an NLEO-based algorithm for automated detection of spontaneous activity transients in early preterm EEG  

Science Journals Connector (OSTI)

We propose here a simple algorithm for automated detection of spontaneous activity transients (SATs) in early preterm electroencephalography (EEG). The parameters of the algorithm were optimized by supervised learning using a gold standard created from visual classification data obtained from three human raters. The generalization performance of the algorithm was estimated by leave-one-out cross-validation. The mean sensitivity of the optimized algorithm was 97% (range 91–100%) and specificity 95% (76–100%). The optimized algorithm makes it possible to systematically study brain state fluctuations of preterm infants.

Kirsi Palmu; Nathan Stevenson; Sverre Wikström; Lena Hellström-Westas; Sampsa Vanhatalo; J Matias Palva

2010-01-01T23:59:59.000Z

59

Radio Sources in Low-Luminosity Active Galactic Nuclei. I. VLA Detections of Compact, Flat-Spectrum Cores  

E-Print Network [OSTI]

We report a 0.2" resolution, 15 GHz survey of a sample of 48 low-luminosity active galactic nuclei with the Very Large Array. Compact radio emission has been detected in 57% (17 of 30) of LINERs and low-luminosity Seyferts, at least 15 of which have a flat to inverted radio spectrum (alpha > -0.3). The compact radio cores are found in both type 1 (i.e. with broad Halpha) and type 2 (without broad Halpha) nuclei. The 2 cm radio power is significantly correlated with the emission-line ([OI] lambda6300) luminosity. While the present observations are consistent with the radio emission originating in star-forming regions, higher resolution radio observations of 10 of the detected sources, reported in a companion paper (Falcke et al. 2000), show that the cores are very compact (= 10^8K) and probably synchrotron self-absorbed, ruling out a starburst origin. Thus, our results suggest that at least 50% of low-luminosity Seyferts and LINERs in the sample are accretion powered, with the radio emission presumably coming from jets or advection-dominated accretion flows. We have detected only 1 of 18 `transition' (i.e. LINER + HII) nuclei observed, indicating their radio cores are significantly weaker than those of `pure' LINERs.

Neil M. Nagar; Heino Falcke; Andrew S. Wilson; Luis C. Ho

2000-05-18T23:59:59.000Z

60

Environmental assessment of the thermal neutron activation explosive detection system for concourse use at US airports  

SciTech Connect (OSTI)

This document is an environmental assessment of a system designed to detect the presence of explosives in checked airline baggage or cargo. The system is meant to be installed at the concourse or lobby ticketing areas of US commercial airports and uses a sealed radioactive source of californium-252 to irradiate baggage items. The major impact of the use of this system arises from direct exposure of the public to scattered or leakage radiation from the source and to induced radioactivity in baggage items. Under normal operation and the most likely accident scenarios, the environmental impacts that would be created by the proposed licensing action would not be significant. 44 refs., 19 figs., 18 tabs.

Jones, C.G.

1990-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

Active Detection and Imaging of Nuclear Materials with High-Brightness Gamma Rays  

SciTech Connect (OSTI)

A Compton scattering {gamma}-ray source, capable of producing photons with energies ranging from 0.1 MeV to 0.9 MeV has been commissioned and characterized, and then used to perform nuclear resonance fluorescence (NRF) experiments. The performances of the two laser systems (one for electron production, one for scattering), the electron photoinjector, and the linear accelerator are also detailed, and {gamma}-ray results are presented. The key source parameters are the size (0.01 mm{sup 2}), horizontal and vertical divergence (6 x 10 mrad{sup 2}), duration (10 ps), spectrum and intensity (10{sup 5} photons/shot). These parameters are summarized by the peak brightness, 1.5 x 10{sup 15} photons/mm{sup 2}/mrad{sup 2}/s/0.1% bandwidth, measured at 478 keV. Additional measurements of the flux as a function of the timing difference between the drive laser pulse and the relativistic photo-electron bunch, {gamma}-ray beam profile, and background evaluations are presented. These results are systematically compared to theoretical models and computer simulations. NRF measurements performed on {sup 7}Li in LiH demonstrate the potential of Compton scattering photon sources to accurately detect isotopes in situ.

Barty, C J; Gibson, D J; Albert, F; Anderson, S G; Anderson, G G; Betts, S M; Berry, R D; Fisher, S E; Hagmann, C A; Johnson, M S; Messerly, M J; Phan, H H; Semenov, V A; Shverdin, M Y; Tremaine, A M; Hartemann, F V; Siders, C W; McNabb, D P

2009-02-26T23:59:59.000Z

62

Thoron detection with an active Radon exposure meter—First results  

SciTech Connect (OSTI)

For state-of-the-art discrimination of Radon and Thoron several measurement techniques can be used, such as active sampling, electrostatic collection, delayed coincidence method, and alpha-particle-spectroscopy. However, most of the devices available are bulky and show high power consumption, rendering them unfeasible for personal exposition monitoring. Based on a Radon exposure meter previously realized at the Helmholtz Center Munich (HMGU), a new electronic prototype for Radon/Thoron monitoring is currently being developed, which features small size and weight. Operating with pin-diode detectors, the low-power passive-sampling device can be used for continuous concentration measurements, employing alpha-particle-spectroscopy and coincidence event registration to distinguish decays originating either from Radon or Thoron isotopes and their decay products. In open geometry, preliminary calibration measurements suggest that one count per hour is produced by a 11?Bq?m{sup ?3} Radon atmosphere or by a 15?Bq?m{sup ?3} Thoron atmosphere. Future efforts will concentrate on measurements in mixed Radon/Thoron atmospheres.

Irlinger, J., E-mail: josef.irlinger@helmholtz-muenchen.de; Wielunski, M.; Rühm, W. [ISS, Helmholtz Center Munich, Research Center for Environment and Health, 85764 Neuherberg (Germany)] [ISS, Helmholtz Center Munich, Research Center for Environment and Health, 85764 Neuherberg (Germany)

2014-02-15T23:59:59.000Z

63

MDA0103.PDF  

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

Credits Deferred credits increased as the result of a 116 million offset to the mark-to-market losses on derivative instrument transactions. Forecast Financial Condition The...

64

MDA - 0203.PDF  

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

during fiscal year 2002 and beyond because of the change in treatment of "bookout" transactions under the standard. Miscellaneous revenues decreased 17 million. Other T...

65

MDA - 0206.PDF  

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

year average of 56 mills. For transmission products, projected sales in the short-term market did not materialize. Mark-to-market gains on derivative instruments were 15...

66

MDA0012.PDF  

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

Credits Deferred credits increased as the result of a 455 million offset to the mark-to-market losses on derivative instrument transactions. Forecast Financial Condition The...

67

MDA - 0112.PDF  

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

Credits Deferred credits decreased 253 million or 27 percent. A reduction of the mark-to-market losses on derivative instrument transactions and different treatment of bookout...

68

MDA - 0212.PDF  

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

Expenses General & administrative and fish & wildlife costs decreased at BPA, while Energy Northwest' s Columbia Generating Station nuclear power plant O&M costs increased....

69

MDA - 0303.PDF  

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

Expenses General & administrative and power marketing costs decreased at BPA, while Energy Northwest' s Columbia Generating Station nuclear power plant O&M costs increased....

70

MDA0006.PDF  

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

10 percent. Revenues increased primarily from increased revenues for power sales to extra-regional customers and increased transmission and other operating revenues. Revenues from...

71

Laboratory and Field Testing of Commercially Available Detectors for the Identification of Chemicals of Interest in the Nuclear Fuel Cycle for the Detection of Undeclared Activities  

SciTech Connect (OSTI)

Traditionally, IAEA inspectors have focused on the detection of nuclear indicators as part of infield inspection activities. The ability to rapidly detect and identify chemical as well as nuclear signatures can increase the ability of IAEA inspectors to detect undeclared activities at a site. Identification of chemical indicators have been limited to use in the analysis of environmental samples. Although IAEA analytical laboratories are highly effective, environmental sample processing does not allow for immediate or real-time results to an IAEA inspector at a facility. During a complementary access inspection, under the Additional Protocol, the use of fieldable technologies that can quickly provide accurate information on chemicals that may be indicative of undeclared activities can increase the ability of IAEA to effectively and efficiently complete their mission. The Complementary Access Working Group (CAWG) is a multi-laboratory team with members from Brookhaven National Laboratory, Idaho National Laboratory, Los Alamos National Laboratory, and Sandia National Laboratory. The team identified chemicals at each stage of the nuclear fuel cycle that may provide IAEA inspectors with indications that proliferation activities may be occurring. The group eliminated all indicators related to equipment, technology and training, developing a list of by-products/effluents, non-nuclear materials, nuclear materials, and other observables. These proliferation indicators were prioritized based on detectability from a conduct of operations (CONOPS) perspective of a CA inspection (for example, whether an inspector actually can access the S&O or whether it is in process with no physical access), and the IAEA’s interest in the detection technology in conjunction with radiation detectors. The list was consolidated to general categories (nuclear materials from a chemical detection technique, inorganic chemicals, organic chemicals, halogens, and miscellaneous materials). The team then identified commercial off the shelf (COTS) chemical detectors that may detect the chemicals of interest. Three chemical detectors were selected and tested both in laboratory settings and in field operations settings at Idaho National Laboratory. The instruments selected are: Thermo Scientific TruDefender FT (FTIR), Thermo Scientific FirstDefender RM (Raman), and Bruker Tracer III SD (XRF). Functional specifications, operability, and chemical detectability, selectivity, and limits of detection were determined. Results from the laboratory and field tests will be presented. This work is supported by the Next Generation Safeguards Initiative, Office of Nonproliferation and International Security, National Nuclear Security Administration.

Carla Miller; Mary Adamic; Stacey Barker; Barry Siskind; Joe Brady; Warren Stern; Heidi Smartt; Mike McDaniel; Mike Stern; Rollin Lakis

2014-07-01T23:59:59.000Z

72

SGR J1550-5418 BURSTS DETECTED WITH THE FERMI GAMMA-RAY BURST MONITOR DURING ITS MOST PROLIFIC ACTIVITY  

SciTech Connect (OSTI)

We have performed detailed temporal and time-integrated spectral analysis of 286 bursts from SGR J1550-5418 detected with the Fermi Gamma-ray Burst Monitor (GBM) in 2009 January, resulting in the largest uniform sample of temporal and spectral properties of SGR J1550-5418 bursts. We have used the combination of broadband and high time-resolution data provided with GBM to perform statistical studies for the source properties. We determine the durations, emission times, duty cycles, and rise times for all bursts, and find that they are typical of SGR bursts. We explore various models in our spectral analysis, and conclude that the spectra of SGR J1550-5418 bursts in the 8-200 keV band are equally well described by optically thin thermal bremsstrahlung (OTTB), a power law (PL) with an exponential cutoff (Comptonized model), and two blackbody (BB) functions (BB+BB). In the spectral fits with the Comptonized model, we find a mean PL index of -0.92, close to the OTTB index of -1. We show that there is an anti-correlation between the Comptonized E{sub peak} and the burst fluence and average flux. For the BB+BB fits, we find that the fluences and emission areas of the two BB functions are correlated. The low-temperature BB has an emission area comparable to the neutron star surface area, independent of the temperature, while the high-temperature BB has a much smaller area and shows an anti-correlation between emission area and temperature. We compare the properties of these bursts with bursts observed from other SGR sources during extreme activations, and discuss the implications of our results in the context of magnetar burst models.

Van der Horst, A. J.; Finger, M. H. [Universities Space Research Association, NSSTC, Huntsville, AL 35805 (United States); Kouveliotou, C. [Space Science Office, VP62, NASA/Marshall Space Flight Center, Huntsville, AL 35812 (United States); Gorgone, N. M. [Connecticut College, New London, CT 06320 (United States); Kaneko, Y.; Goegues, E.; Lin, L. [Sabanc Latin-Small-Letter-Dotless-I University, Orhanl Latin-Small-Letter-Dotless-I -Tuzla, Istanbul 34956 (Turkey); Baring, M. G. [Department of Physics and Astronomy, Rice University, MS-108, P.O. Box 1892, Houston, TX 77251 (United States); Guiriec, S.; Bhat, P. N.; Chaplin, V. L.; Goldstein, A. [University of Alabama, Huntsville, CSPAR, Huntsville, AL 35805 (United States); Granot, J. [Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel); Watts, A. L. [Astronomical Institute 'Anton Pannekoek', University of Amsterdam, Postbus 94249, 1090 GE Amsterdam (Netherlands); Bissaldi, E.; Gruber, D. [Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, Postfach 1312, 85748 Garching (Germany); Gehrels, N.; Harding, A. K. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Gibby, M. H.; Giles, M. M., E-mail: A.J.VanDerHorst@uva.nl [Jacobs Technology, Inc., Huntsville, AL (United States); and others

2012-04-20T23:59:59.000Z

73

A study of time-based features and regularity of manipulation to improve the detection of eating activity  

E-Print Network [OSTI]

;Abstract This thesis considers the problem of detecting when people eat by tracking their wrist motion have been instrumental in my decision of pursuing my Master's degree. iii #12;Table of Contents Title

Hoover, Adam

74

Effects of triclosan on the detoxification system in the yellow catfish (Pelteobagrus fulvidraco): Expressions of CYP and GST genes and corresponding enzyme activity in phase I, II and antioxidant system  

Science Journals Connector (OSTI)

Abstract Triclosan (TCS), a broad-spectrum antibacterial agent widely used in pharmaceuticals and personal case products (PPCPs), has been universally detected in aquatic ecosystem in recent years. Unfortunately, there is limited information about its potential impacts on responses of genes and enzymes related to fish detoxification. In the present work, we cloned CYP3A and alpha-GST of yellow catfish (Pelteobagrus fulvidraco) and tested the transcriptional expression of CYP1A, CYP3A and GST as well as the alterations of their corresponding enzymes, including ethoxyresorufin-O-deethylase (EROD), aminopyrine N-demethylase (APND), erythromycin N-demethylase (ERND), glutathione S-transferase (GST) and catalase (CAT), and also the oxidative product malondialdehyde (MDA) content in the liver of P. fulvidraco exposed to TCS. Amino acids of CYP3A and GST were deduced and phylogenetic tree was constructed respectively. High identity percent was exhibited between P. fulvidraco and other species, such as other fish, birds and mammals. Results indicated that TCS significantly elevated CYP1A and GST but decreased CYP3A expression, EROD activity and MDA content at lower concentrations of TCS at 24 h. Moreover, CYP3A and GST were significantly inhibited at 72 h but induced at 168 h at lower concentrations. However, CYP3A was always induced at the highest concentration during the exposure period. Furthermore, CYP3A, GST, GST enzyme and MDA content exhibited a dose–effect relationship to some extent, but no significant responses were observed in ERND, APND and CAT except for individual treatments. Taken together, EROD was the most sensitive to TCS exposure as compared to other enzymes. Meanwhile, mRNA responses were more sensitive in yellow catfish.

Peijia Ku; Xiaoyan Wu; Xiangping Nie; Ruikang Ou; Lan Wang; Tian Su; Yigang Li

2014-01-01T23:59:59.000Z

75

Activities  

Broader source: Energy.gov [DOE]

Activities and events provide Residential Network members the opportunity to discuss similar needs and challenges, and to collectively identify effective strategies and useful resources.

76

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

77

A fluorescence method to detect photo-activated repair of UV-induced DNA damage in marine organisms  

SciTech Connect (OSTI)

After UV exposure, marine microorganisms may re-activate their photosynthetic systems or regain their pre-exposure metabolic rates, but they will not long survive, nor grow or reproduce, if they cannot repair DNA or ERN damage. Several repair mechanisms, including nucleotide excision repair and photo-reactivation, are known in terrestrial organisms, but there is little information on either process in marine microorganisms. Photo-reactivation may be especially important near the ocean surface where a few meters difference in vertical position or a few hours difference in time may alleviate UV-irradiation stress yet still provide sufficient light for photoactivated repair processes. We have developed a relatively simple, sensitive method to measure the activity of the photo-reactivation enzyme, photolyase, by fluorometry. UV irradiation causes adjacent thymine nucleotides in DNA to form cyclobutane dimers. Photolyase attaches to the dimerized DNA then breaks the dimers in a reaction catalyzed by visible light, thereby allowing restoration of cross-strand base pairing. Our assay for photolyase activity involves a dimerized synthetic DNA and DNA-specific fluorochromes with affinity for thymine-rich regions of DNA. When thymine dimers are present, fluorescence of these dyes is reduced. As dimers are repaired, fluorescence increases, allowing us to demonstrate the presence of photolyase and measure its activity using conventional fluorometers available in most marine laboratories. Photo-reactivation activity has been unambiguously demonstrated in samples of coastal seawater. In preliminary investigations, cells taken from surface slicks did not have enhanced photo-repair capabilities relative to cells collected 5 meters below the surface. Additional tests of the method and measurements of photo-repair activities of surface and subsurface organisms will be made during the SLIX-89 Surface Microlayer Experiment in October 1989.

Carlson, D.J.; Mordy, C.W.; Nelson, K. (Oregon State Univ., Corvallis (United States))

1990-01-09T23:59:59.000Z

78

Presence of estrogenic activity from emission of fossil fuel combustion as detected by a recombinant yeast bioassay  

Science Journals Connector (OSTI)

Estrogenic activities of emission samples generated by fossil fuel combustion were investigated with human estrogen receptor (ER) recombinant yeast bioassay. The results showed that there were weak but clear estrogenic activities in combustion emissions of fossil fuels including coal, petroleum, and diesel. The estrogenic relative potency (RP) of fossil fuel combustion was the highest in petroleum-fired car, followed by coal-fired stove, diesel-fired agrimotor, coal-fired electric power station. On the other hand, the estrogenic relative inductive efficiency (RIE) was the highest in coal-fired stove and coal-fired electric power station, followed by petroleum-fired car and diesel-fired agrimotor. The estrogenic activities in the sub-fractions from chromatographic separation of emitted materials were also determined. The results indicated that different chemical fractions in these complex systems have different estrogenic potencies. The GC/MS analysis of the emission showed that there were many aromatic carbonyls, big molecular alcohol, \\{PAHs\\} and derivatives, and substituted phenolic compounds and derivatives which have been reported as environmental estrogens. The existence of estrogenic substances in fossil fuel combustion demands further investigation of their potential adverse effects on human and on the ecosystem. The magnitude of pollution due to global usage of fossil fuels makes it imperative to understand the issue of fossil fuel-derived endocrine activities and the associated health risks, particularly the aggregated risks stemmed from exposure to toxicants of multiple sources.

Jingxian Wang; Wenzhong Wu; Bernhard Henkelmann; Li You; Antonius Kettrup; Karl-Werner Schramm

2003-01-01T23:59:59.000Z

79

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

80

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...

Note: This page contains sample records for the topic "detectable activity mda" 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

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

82

Annual Progress Report on the Development of Waste Tank Leak Monitoring and Detection and Mitigation Activities in Support of M-45-08  

SciTech Connect (OSTI)

Milestone M-45-09E of the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement or TPA) [TPA 1996] requires submittal of an annual progress report on the development of waste tank leak detection, monitoring, and mitigation (LDMM) activities associated with the retrieval of waste from single-shell tanks (SSTs). This report details progress for fiscal year 2000, building on the current LDMM strategy and including discussion of technologies, applications, cost, schedule, and technical data. The report also includes discussion of demonstrations conducted and recommendations for additional testing. Tri-Party Agreement Milestones M-45-08A and M-45-08B required design and demonstration of LDMM systems for initial retrieval of SST waste. These specific milestones have recently been deleted as part of the M-45-00A change package. Future LDMM development work has been incorporated into specific technology demonstration milestones and SST waste retrieval milestones in the M-45-03 and M-45-05 milestone series.

DEFIGH PRICE, C.

2000-09-25T23:59:59.000Z

83

Quantitative Assessment of Detection Frequency for the INL Ambient Air Monitoring Network  

SciTech Connect (OSTI)

A quantitative assessment of the Idaho National Laboratory (INL) air monitoring network was performed using frequency of detection as the performance metric. The INL air monitoring network consists of 37 low-volume air samplers in 31 different locations. Twenty of the samplers are located on INL (onsite) and 17 are located off INL (offsite). Detection frequencies were calculated using both BEA and ESER laboratory minimum detectable activity (MDA) levels. The CALPUFF Lagrangian puff dispersion model, coupled with 1 year of meteorological data, was used to calculate time-integrated concentrations at sampler locations for a 1-hour release of unit activity (1 Ci) for every hour of the year. The unit-activity time-integrated concentration (TICu) values were calculated at all samplers for releases from eight INL facilities. The TICu values were then scaled and integrated for a given release quantity and release duration. All facilities modeled a ground-level release emanating either from the center of the facility or at a point where significant emissions are possible. In addition to ground-level releases, three existing stacks at the Advanced Test Reactor Complex, Idaho Nuclear Technology and Engineering Center, and Material and Fuels Complex were also modeled. Meteorological data from the 35 stations comprising the INL Mesonet network, data from the Idaho Falls Regional airport, upper air data from the Boise airport, and three-dimensional gridded data from the weather research forecasting model were used for modeling. Three representative radionuclides identified as key radionuclides in INL’s annual National Emission Standards for Hazardous Air Pollutants evaluations were considered for the frequency of detection analysis: Cs-137 (beta-gamma emitter), Pu-239 (alpha emitter), and Sr-90 (beta emitter). Source-specific release quantities were calculated for each radionuclide, such that the maximum inhalation dose at any publicly accessible sampler or the National Emission Standards for Hazardous Air Pollutants maximum exposed individual location (i.e., Frenchman’s Cabin) was no more than 0.1 mrem yr–1 (i.e., 1% of the 10 mrem yr–1 standard). Detection frequencies were calculated separately for the onsite and offsite monitoring network. As expected, detection frequencies were generally less for the offsite sampling network compared to the onsite network. Overall, the monitoring network is very effective at detecting the potential releases of Cs-137 or Sr-90 from all sources/facilities using either the ESER or BEA MDAs. The network was less effective at detecting releases of Pu-239. Maximum detection frequencies for Pu-239 using ESER MDAs ranged from 27.4 to 100% for onsite samplers and 3 to 80% for offsite samplers. Using BEA MDAs, the maximum detection frequencies for Pu-239 ranged from 2.1 to 100% for onsite samplers and 0 to 5.9% for offsite samplers. The only release that was not detected by any of the samplers under any conditions was a release of Pu-239 from the Idaho Nuclear Technology and Engineering Center main stack (CPP-708). The methodology described in this report could be used to improve sampler placement and detection frequency, provided clear performance objectives are defined.

A. Jeffrey Sondrup; Arthur S. Rood

2014-11-01T23:59:59.000Z

84

An investigation of signal performance enhancements achieved through innovative pixel design across several generations of indirect detection, active matrix, flat-panel arrays  

SciTech Connect (OSTI)

Active matrix flat-panel imager (AMFPI) technology is being employed for an increasing variety of imaging applications. An important element in the adoption of this technology has been significant ongoing improvements in optical signal collection achieved through innovations in indirect detection array pixel design. Such improvements have a particularly beneficial effect on performance in applications involving low exposures and/or high spatial frequencies, where detective quantum efficiency is strongly reduced due to the relatively high level of additive electronic noise compared to signal levels of AMFPI devices. In this article, an examination of various signal properties, as determined through measurements and calculations related to novel array designs, is reported in the context of the evolution of AMFPI pixel design. For these studies, dark, optical, and radiation signal measurements were performed on prototype imagers incorporating a variety of increasingly sophisticated array designs, with pixel pitches ranging from 75 to 127 {mu}m. For each design, detailed measurements of fundamental pixel-level properties conducted under radiographic and fluoroscopic operating conditions are reported and the results are compared. A series of 127 {mu}m pitch arrays employing discrete photodiodes culminated in a novel design providing an optical fill factor of {approx}80% (thereby assuring improved x-ray sensitivity), and demonstrating low dark current, very low charge trapping and charge release, and a large range of linear signal response. In two of the designs having 75 and 90 {mu}m pitches, a novel continuous photodiode structure was found to provide fill factors that approach the theoretical maximum of 100%. Both sets of novel designs achieved large fill factors by employing architectures in which some, or all of the photodiode structure was elevated above the plane of the pixel addressing transistor. Generally, enhancement of the fill factor in either discrete or continuous photodiode arrays was observed to result in no degradation in MTF due to charge sharing between pixels. While the continuous designs exhibited relatively high levels of charge trapping and release, as well as shorter ranges of linearity, it is possible that these behaviors can be addressed through further refinements to pixel design. Both the continuous and the most recent discrete photodiode designs accommodate more sophisticated pixel circuitry than is present on conventional AMFPIs - such as a pixel clamp circuit, which is demonstrated to limit signal saturation under conditions corresponding to high exposures. It is anticipated that photodiode structures such as the ones reported in this study will enable the development of even more complex pixel circuitry, such as pixel-level amplifiers, that will lead to further significant improvements in imager performance.

Antonuk, Larry E.; Zhao Qihua; El-Mohri, Youcef; Du Hong; Wang Yi; Street, Robert A.; Ho, Jackson; Weisfield, Richard; Yao, William [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109 (United States); Palo Alto Research Center (PARC), 3333 Coyote Hill Road, Palo Alto, California 94304 (United States); dpiX, 3406 Hillview Avenue, Palo Alto, California 94304 (United States)

2009-07-15T23:59:59.000Z

85

Induction of endoplasmic reticulum stress response by TZD18, a novel dual ligand for peroxisome proliferator-activated receptor ?/?, in human breast cancer cells  

Science Journals Connector (OSTI)

...cancer cells. Breast Cancer Res Treat 2002;74:155-65. 8 Fenner MH , Elstner E. Peroxisome proliferator-activated receptor-gamma...MDA-MB-231. Mol Carcinog 2002;34:165-71. 12 Liu H , Zang C, Fenner MH, et al. Growth inhibition and apoptosis in human Philadelphia...

Chuanbing Zang; Hongyu Liu; Janina Bertz; Kurt Possinger; H. Phillip Koeffler; Elena Elstner; Jan Eucker

2009-08-01T23:59:59.000Z

86

Detection of 2?,5? oligoadenylate synthetase activity in acute viral hepatitis with special reference to histologic features in the acute stage  

Science Journals Connector (OSTI)

We measured the sequential changes in 2?,5? oligoadenylate synthetase activity in 21 patients with acute viral hepatitis (5 with type A, 6 with type B, and 10 with type non-A, non-B hepatitis) by radioimmunoas...

Tadao Okuno M.D.; Michiko Shindo; Ken Arai…

1991-04-01T23:59:59.000Z

87

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

88

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

89

radiation detection  

National Nuclear Security Administration (NNSA)

for the system's sustainability through operations and maintenance training, and "train-the-trainer" activities.

NNSA's SLD program works to strengthen the capabilities...

90

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

91

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

92

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

93

MDA0106-Revised for SFAS 133.PDF  

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

on derivative instruments were 168 million at the transition on Oct. 1, 2000. Mark-to-market gains were 269 million during the first three-quarters of fiscal 2001. Bookouts...

94

Detecting Accretion Disks in Active Galactic Nuclei  

Science Journals Connector (OSTI)

......black hole with an accretion disk was produced by Luminet (1979...how the BH and the accretion disk are seen by an observer who is flying near the hole. Images of the...temperature of the gas in the disk. We have extended the above......

Claudio Fanton; Massimo Calvani; Fernando de Felice; Andrej Cadez

1997-04-01T23:59:59.000Z

95

Antiandrogenic activity of phthalate mixtures: Validity of concentration addition  

SciTech Connect (OSTI)

Phthalates and bisphenol A have very widespread use leading to significant exposure of humans. They are suspected to interfere with the endocrine system, including the androgen, estrogen and the thyroid hormone system. Here we analyzed the antiandrogenic activity of six binary, and one ternary mixture of phthalates exhibiting complete antiandrogenic dose–response curves, and binary mixtures of phthalates and bisphenol A at equi-effective concentrations of EC{sub 10}, EC{sub 25} and EC{sub 50} in MDA-kb2 cells. Mixture activity followed the concentration addition (CA) model with a tendency to synergism at high and antagonism at low concentrations. Isoboles and the toxic unit approach (TUA) confirmed the additive to synergistic activity of the binary mixtures BBP + DBP, DBP + DEP and DEP + BPA at high concentrations. Both methods indicate a tendency to antagonism for the EC{sub 10} mixtures BBP + DBP, BBP + DEP and DBP + DEP, and the EC{sub 25} mixture of DBP + BPA. A ternary mixture revealed synergism at the EC{sub 50}, and weak antagonistic activity at the EC{sub 25} level by the TUA. A mixture of five phthalates representing a human urine composition and reflecting exposure to corresponding parent compounds showed no antiandrogenic activity. Our study demonstrates that CA is an appropriate concept to account for mixture effects of antiandrogenic phthalates and bisphenol A. The interaction indicates a departure from additivity to antagonism at low concentrations, probably due to interaction with the androgen receptor and/or cofactors. This study emphasizes that a risk assessment of phthalates should account for mixture effects by applying the CA concept. -- Highlights: ? Antiandrogenic activity of mixtures of 2 and 3 phthalates are assessed in MDA-kb2 cells. ? Mixture activities followed the concentration addition model. ? A tendency to synergism at high and antagonism at low levels occurred.

Christen, Verena [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland)] [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland); Crettaz, Pierre; Oberli-Schrämmli, Aurelia [Swiss Federal Office of Public Health, Division Chemical Products, 3003 Bern (Switzerland)] [Swiss Federal Office of Public Health, Division Chemical Products, 3003 Bern (Switzerland); Fent, Karl, E-mail: karl.fent@bluewin.ch [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland) [University of Applied Sciences Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz (Switzerland); Swiss Federal Institute of Technology Zürich (ETH Zürich), Department of Environmental Sciences, 8092 Zürich (Switzerland)

2012-03-01T23:59:59.000Z

96

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

97

ANL Activities  

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

Activities of the DOD Activities of the DOD Project Office focus today on the Navy's Free Electron Laser Program Argonne Accelerator Institute Meeting June 16, 2009 2 Several Beam Activities and Interests Ongoing  Terahertz sources and applications  Navy Free Electron Laser (Focus area today)  Free Electron Laser Applications  Electromagnetic Interference Technology Review Committees  Novel Fiber Optic Materials with Army Research Lab  Optical Diagnostics for next-generation light sources  Neutron detection schemes  NATO Sensors and Electronics Panel, international field tests of directed energy source applications  Controls  Radiation Oncology 3 Background, Naval Directed Energy History The U.S Navy has been investigating utility of lasers since the 1960's and the

98

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

99

LANL | Physics | Active Interrogation  

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

Physics Division activities in standoff active-interrogation for detecting Physics Division activities in standoff active-interrogation for detecting terrorist nuclear devices, 2011 Detonation of a terrorist nuclear device in a major city would have severe economic, psychological and cultural consequences. To help prevent the fulfillment of such a threat, Physics Division has been exploring techniques by which highly-enriched uranium could be detected before reaching its intended target. We have focused on the use of high-energy protons and negative-muons because of their ability to probe deeply into structures and shielding that would surround the uranium, and their capability to stimulate radiation signatures indicating 235U. Our experimental studies for standoff active-interrogation are enabled by the 800-MeV proton beam at the Los Alamos Neutron Science Center, which

100

Patch Clamp Detection in Capillary Electrophoresis  

E-Print Network [OSTI]

Articles Patch Clamp Detection in Capillary Electrophoresis Kent Jardemark Department of Anatomy a capillary electrophoresis-patch clamp (CE- PC) analysis of biomolecules that activate ligand-gated ion responses were calculated from currents recorded with patch clamp detection. This information

Zare, Richard N.

Note: This page contains sample records for the topic "detectable activity mda" 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

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...

102

Student Activities Student Activities  

E-Print Network [OSTI]

with Solar Energy? Activity B How do Atmospheres Produce their Effect Upon Surface Temperatures? Activity C and populations found in developing countries in Asia, Africa and Latin America. Figure 4.3 illustrates the actual

103

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

104

Traffic Light Mapping and Detection Nathaniel Fairfield Chris Urmson  

E-Print Network [OSTI]

-assistance and autonomous vehicle systems. While these systems can often employ active sensors such as sonar, radar of these augmented vehicles is the perception system, which allows the vehicle to perceive and interpret its that are detected by our system. way to detect the state of the light, which may include detecting which sub

Tomkins, Andrew

105

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

106

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

107

Technologies for detection of nuclear materials  

SciTech Connect (OSTI)

Detection of smuggled nuclear materials at transit points requires monitoring unknown samples in large closed packages. This review contends that high-confidence nuclear-material detection requires induced fission as the primary mechanism, with passive radiation screening in a complementary role. With the right equipment, even small quantities of nuclear materials are detectable with a high probability at transit points. The equipment could also be linked synergistically with detectors of other contrabond. For screening postal mail and packages, passive monitors are probably more cost-effective. When a suspicious item is detected, a single active probe could then be used. Until active systems become mass produced, this two-stage screening/interrogation role for active/passive equipment is more economic for cargo at border crossings. For widespread monitoring of nuclear smuggling, it will probably be necessary to develop a system for simultaneously detecting most categories of contraband, including explosives and illicit drugs. With control of nuclear materials at known storage sites being the first line of defense, detection capabilities at international borders could establish a viable second line of defense against smuggling.

DeVolpi, A.

1996-03-30T23:59:59.000Z

108

DOE Safety, Codes, and Standards Activities  

Broader source: Energy.gov [DOE]

DOE's safety R&D activities are aimed at developing sensors to detect hydrogen leaks in hydrogen and fuel cell systems. DOE's codes and standards activities are focused on coordinating and...

109

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...

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

Network visualization for financial crime detection  

Science Journals Connector (OSTI)

Objective: We present a new software system, VisFAN, for the visual analysis of financial activity networks. Methods: We combine enhanced graph drawing techniques to devise novel algorithms and interaction functionalities for the visual exploration of ... Keywords: Financial crime detection, Graph visualization, Information visualization, Social network analysis

Walter Didimo, Giuseppe Liotta, Fabrizio Montecchiani

2014-08-01T23:59:59.000Z

114

Can Clone Detection Support Test Comprehension?  

E-Print Network [OSTI]

Can Clone Detection Support Test Comprehension? Benedikt Hauptmann, Maximilian Junker, Sebastian¨unchen, Germany Rudolf Vaas Munich Re Group M¨unchen, Germany Abstract--Tests are central artifacts of software systems. Therefore, understanding tests is essential for activities such as maintenance, test automation

115

Active Sensors | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Active Sensors Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Active Sensors Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Active Sensors Parent Exploration Technique: Remote Sensing Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Detect fault and ground movement, delineate faults, create high-resolution DEMS, quantify fault kinemaics, develop lineament maps, Geophysical Monitoring Hydrological: Can give indications about subsurface geothermal fluid flow Thermal: Dictionary.png Active Sensors: Sensors that emit their own source of energy then measure the

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

Insider Threat Detection using Stream Mining and Graph Mining  

E-Print Network [OSTI]

Insider Threat Detection using Stream Mining and Graph Mining Pallabi Parveen, Jonathan Evans threats who attempt to conceal their activities by varying their behaviors over time. This paper applies of insider threat detection, demonstrating that the ensemble-based approach is significantly more effective

Hamlen, Kevin W.

Note: This page contains sample records for the topic "detectable activity mda" 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

Recent progress in road and lane detection: a survey  

Science Journals Connector (OSTI)

The problem of road or lane perception is a crucial enabler for advanced driver assistance systems. As such, it has been an active field of research for the past two decades with considerable progress made in the past few years. The problem was confronted ... Keywords: Advanced driver assistance systems, Lane detection, Road detection, Road segmentation

Aharon Bar Hillel, Ronen Lerner, Dan Levi, Guy Raz

2014-04-01T23:59:59.000Z

122

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

123

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

124

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...

125

Thin-Film Fiber Optic Sensors for Power Control and Fault Detection. Final Report  

SciTech Connect (OSTI)

Described is the development of an optical current measurement device, an active power conditioning system, and sol gel type thin films for the detection of magnetic fields.

Duncan, Paul Grems

2003-09-30T23:59:59.000Z

126

Mass determination of megadalton-DNA Electrospray Ions usingCharge Detection Mass Spectrometry  

SciTech Connect (OSTI)

Charge detection mass spectrometry (CD-MS) has been used to determine the mass of double-stranded, circular DNA and single-stranded, circular DNA in the range of 2500 to 8000 base pairs (1.5-5.0 MDa). Simultaneous measurement of the charge and velocity of an electrostatically accelerated ion allows a mass determination of the ion, with instrument calibration determined independently of samples. Positive ion mass spectra of electrosprayed commercial DNA samples supplied in tris(hydroxymethyl)ethylenediamine tetraacetic acid buffer, diluted in 50 vol. percent acetonitrile, were obtained without cleanup of the sample. ACD mass spectrum constructed from 3000 ion measurements takes 10 min to acquire and yields the DNA molecular mass directly (mass resolution = 6). The data collected represent progress toward a more automatable alternative to sizing of DNA by gel electrophoresis. In addition to the mass spectra, CD-MS generates charge versus mass plots, which provide another means to investigate the creation and fate of large electrospray ions.

Schultz, Jocelyn C.; Hack, Christopher; Benner, Henry W.

1997-10-01T23:59:59.000Z

127

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

128

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

129

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

130

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

131

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...

132

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

133

Antioxidant and Anticancer Activities of Selected Persian Gulf Algae  

Science Journals Connector (OSTI)

In the present study, the effect of red (Gracillaria corticata), green (Ulva fasciata) and brown (Sargassum ilicifolium) seaweeds alcoholic extract, against five important human cancer cell lines (MCF-7, MDA-MB-2...

F. Namvar; J. Baharara; A. A. Mahdi

2014-01-01T23:59:59.000Z

134

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

135

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

136

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

137

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 phone’s 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

138

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

139

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

140

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

Note: This page contains sample records for the topic "detectable activity mda" 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

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

142

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

143

An active oil spill detection digital processing system  

E-Print Network [OSTI]

storage of data being currently used and an arithmetic/logic unit (ALU) to perform the data manipulation. Control circuitry is used to direct the data flow and the operations to be performed. Information for the CPU comes from the memory and input...

Dennard, Robert Marion

2012-06-07T23:59:59.000Z

144

A Multidisciplinary Approach To Detect Active Pathways For Magma...  

Open Energy Info (EERE)

started well before its occurrence by combining geological, seismic and geochemical data gathered in this part of the volcano. We were able, in fact, to highlight fractured...

145

Analyzing and Detecting Malicious Activities in Emerging Communication Platforms  

E-Print Network [OSTI]

.6 The entropy of the domain names. . . . . . . . . . . . . . . . . . . . . 45 4.7 Case studies for malicious supporters. . . . . . . . . . . . . . . . . . . 45 4.8 Using di?erent selection strategies and setting di?erent selection sizes of accounts... of analyzing the network-level behaviors, we investigate: (1) which IP address spaces are mainly used by Android malware; (2) which special networks tend to be used to host remote servers; (3) whether existing IP/domain blacklists are e?ective to be used...

Yang, Chao

2014-06-05T23:59:59.000Z

146

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

147

Active Hydrogen  

Science Journals Connector (OSTI)

Dry hydrogen can be activated in an electric discharge if the pressure and voltage are carefully regulated. Active hydrogen reduces metallic sulphides whose heat of formation is 22 000 cal. or less. The active gas is decomposed by 3 cm of well packed glass wool. A quantitative method is given for the determination of active hydrogen. Less of the active gas is formed in a tube coated with stearic acid or phosphoric acid than when no coating is employed. The decay reaction was found to follow the expression for a unimolecular reaction. The rate of decay appears to be independent of the wall surface. The period of half?life at room temperature and 40 mm pressure is 0.2 sec. approximately. The energy of formation of active hydrogen is approximately 18 000 cal. The energy of activation for the decay of the active constituent is approximately 17 800 cal. The properties of active hydrogen are considered in relation to the properties predicted for H3.

A. C. Grubb; A. B. Van Cleave

1935-01-01T23:59:59.000Z

148

Microgrid Activities  

Broader source: Energy.gov [DOE]

The Energy Department has a comprehensive portfolio of activities that focuses on the development and implementation of microgrids to further improve reliability and resiliency of the grid, help...

149

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

150

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

151

Black Holes in Active Galaxies  

E-Print Network [OSTI]

Recent years have seen tremendous progress in the quest to detect supermassive black holes in the centers of nearby galaxies, and gas-dynamical measurements of the central masses of active galaxies have been valuable contributions to the local black hole census. This review summarizes measurement techniques and results from observations of spatially resolved gas disks in active galaxies, and reverberation mapping of the broad-line regions of Seyfert galaxies and quasars. Future prospects for the study of black hole masses in active galaxies, both locally and at high redshift, are discussed.

A. J. Barth

2003-10-15T23:59:59.000Z

152

Improved Microseismicity Detection During Newberry EGS Stimulations  

SciTech Connect (OSTI)

Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

Dennise Templeton

2013-11-01T23:59:59.000Z

153

Improved Microseismicity Detection During Newberry EGS Stimulations  

SciTech Connect (OSTI)

Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

Dennise Templeton

2013-10-01T23:59:59.000Z

154

Improved Microseismicity Detection During Newberry EGS Stimulations  

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

Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are often employed to identify microearthquakes in geothermal regions. However, most commonly used algorithms may miss events if the seismic signal of an earthquake is small relative to the background noise level or if a microearthquake occurs within the coda of a larger event. Consequently, we have developed a set of algorithms that provide improved microearthquake detection. Our objective is to investigate the microseismicity at the DOE Newberry EGS site to better image the active regions of the underground fracture network during and immediately after the EGS stimulation. Detection of more microearthquakes during EGS stimulations will allow for better seismic delineation of the active regions of the underground fracture system. This improved knowledge of the reservoir network will improve our understanding of subsurface conditions, and allow improvement of the stimulation strategy that will optimize heat extraction and maximize economic return.

Templeton, Dennise

155

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

156

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

157

Detecting the climatic effects of increasing carbon dioxide  

SciTech Connect (OSTI)

This report documents what is known about detecting the CO2-induced changes in climate, and describes the uncertainties and unknowns associated with this monitoring and analysis effort. The various approaches for detecting CO2-induced climate changes are discussed first, followed by a review of applications of these strategies to the various climatic variables that are expected to be changing. Recommendations are presented for research and analysis activities. Separate abstracts have been prepared for the individual papers. (ACR)

MacCracken, M C; Luther, F M [eds.

1985-12-01T23:59:59.000Z

158

Methods and systems for remote detection of gases  

DOE Patents [OSTI]

Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art.

Johnson, Timothy J. (Pasco, WA)

2007-11-27T23:59:59.000Z

159

Methods and systems for remote detection of gases  

DOE Patents [OSTI]

Novel systems and methods for remotely detecting at least one constituent of a gas via infrared detection are provided. A system includes at least one extended source of broadband infrared radiation and a spectrally sensitive receiver positioned remotely from the source. The source and the receiver are oriented such that a surface of the source is in the field of view of the receiver. The source includes a heating component thermally coupled to the surface, and the heating component is configured to heat the surface to a temperature above ambient temperature. The receiver is operable to collect spectral infrared absorption data representative of a gas present between the source and the receiver. The invention advantageously overcomes significant difficulties associated with active infrared detection techniques known in the art, and provides an infrared detection technique with a much greater sensitivity than passive infrared detection techniques known in the art.

Johnson, Timothy J

2012-09-18T23:59:59.000Z

160

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

Note: This page contains sample records for the topic "detectable activity mda" 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

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...

162

Improved method for detection of starch hydrolysis  

SciTech Connect (OSTI)

A new starch hydrolysis detection method which does not rely on iodine staining or the use of color-complexed starch is described. A linear relationship was obtained with agar-starch plates when net clearing zones around colonies of yeasts were plotted against enzyme levels (semilogarithm scale) produced by the same yeast strains in liquid medium. A similar relationship between starch clearing zones and alpha-amylase levels from three different sources was observed. These observations suggest that the method is useful in mutant isolations, strain improvement programs, and the prediction of alpha-amylase activities in culture filtrates or column effluents. (Refs. 18).

Ohawale, M.R.; Wilson, J.J.; Khachatourians, G.G.; Ingledew, W.M.

1982-09-01T23:59:59.000Z

163

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

164

Documenting Western Burrowing Owl Reproduction and Activity Patterns Using Motion-Activated Cameras  

SciTech Connect (OSTI)

We used motion-activated cameras to monitor the reproduction and patterns of activity of the Burrowing Owl (Athene cunicularia) above ground at 45 burrows in south-central Nevada during the breeding seasons of 1999, 2000, 2001, and 2005. The 37 broods, encompassing 180 young, raised over the four years represented an average of 4.9 young per successful breeding pair. Young and adult owls were detected at the burrow entrance at all times of the day and night, but adults were detected more frequently during afternoon/early evening than were young. Motion-activated cameras require less effort to implement than other techniques. Limitations include photographing only a small percentage of owl activity at the burrow; not detecting the actual number of eggs, young, or number fledged; and not being able to track individual owls over time. Further work is also necessary to compare the accuracy of productivity estimates generated from motion-activated cameras with other techniques.

Hall, Derek B. [NSTec; Greger, Paul D. [NSTec

2014-08-01T23:59:59.000Z

165

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

166

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

167

Public Activities  

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

publicactivities_header.jpg publicactivities_header.jpg Public Activities Citizens are encouraged to learn about the Department of Energy's programs through a variety of activities that are open to the public. Our goal is to educate citizens and seek their meaningful involvement. If you are visiting the area, the American Museum of Science and Energy in Oak Ridge is the best starting point for exhibits and information about DOE programs in science, environmental management, nuclear fuel supply, and national security. Tours are conducted of the Oak Ridge National Laboratory, Y-12 National Security Complex and East Tennessee Technology Park during the summer months departing from the Museum. For those with more specific interests in our programs, each month we publish a calendar of public involvement activities, which identifies announcements, comment periods and public meetings of potential interest. Our Environmental Management Program has a Site Specific Advisory Board composed of area citizens who meet the second Wednesday of each month.

168

Acoustic detection of neutrinos  

Science Journals Connector (OSTI)

When high energy neutrinosinteract with nucleons in the ocean a jet of hadrons is produced which deposits thermal energy. This thermal energy is expected to produce a sonic pulse which hopefully will be sufficiently intense and directional to enable the energy and direction of incidence of the primary neutrino to be determined [Antares Parvulescu J. Acoust. Soc. Am. 61 580(A) (1977)]. This paper discusses the physical mechanism whereby the energy of the neutrino is converted into a sound pulse. A simple model will be exploited to account for the signature expected from such an event. [Work supported in part by the U. S. Naval Ocean Research and Development Activity and by the U. S. Department of Energy.

Peter J. Westervelt

1978-01-01T23:59:59.000Z

169

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

170

"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

171

Lane departure detection for improved road geometry estimation  

E-Print Network [OSTI]

vehicles is mea- sured using a vision system and a radar, whereas the shape of the road is measured using1 Lane departure detection for improved road geometry estimation Thomas B. Sch¨on Andreas Eidehall Fredrik Gustafsson Division of Automatic Control Vehicle Dynamics and Active Safety Link¨oping University

Schön, Thomas

172

T Plant secondary containment and leak detection upgrades  

SciTech Connect (OSTI)

The W-259 project will provide upgrades to the 2706-T/TA Facility to comply with Federal and State of Washington environmental regulations for secondary containment and leak detection. The project provides decontamination activities supporting the environmental restoration mission and waste management operations on the Hanford Site.

Carlson, T.A.

1995-10-19T23:59:59.000Z

173

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

174

Marine life detection and tracking using a swimmer detection sonar network.  

Science Journals Connector (OSTI)

There is a growing need for real?time monitoring of marine life and floating debris during a wide variety of commercial operations. These include seismic exploration for oil and gas explosive removal of offshore structures pile driving for the installation of marine structures including offshore wind farms and the operation of tidal turbines and wave powergeneration devices. Active acoustics is likely the best method for monitoring where there is a high?danger region with a limited range around the activity. The SSI Swimmer Detection Sonar Network was originally designed as a human swimmer and diver detection and tracking system. However extensive trials have demonstrated that the system is also capable of tracking marine life ranging from a large fish or marine mammals to schools of smaller fish. Analysis of the detection characteristics and movement behavior of marine life is being conducted as a means of tracking and classification at ranges out to roughly 500 m. Real?time identification and tracking over time may also provide insight into the habituation of marine life to these facilities in addition to serving as a protective measure. [Research supported by ONR SBIR.

Patrick Edson; Peter J. Stein; Nicholas A. Rotker

2010-01-01T23:59:59.000Z

175

Detection of Surface Temperature Anomalies in the Coso Geothermal Field  

Open Energy Info (EERE)

Detection of Surface Temperature Anomalies in the Coso Geothermal Field Detection of Surface Temperature Anomalies in the Coso Geothermal Field Using Thermal Infrared Remote Sensing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Detection of Surface Temperature Anomalies in the Coso Geothermal Field Using Thermal Infrared Remote Sensing Details Activities (1) Areas (1) Regions (0) Abstract: We use thermal infrared (TIR) data from the spaceborne ASTER instrument to detect surface temperature anomalies in the Coso geothermal field in eastern California. The identification of such anomalies in a known geothermal area serves as an incentive to apply similar markers and techniques to areas of unknown geothermal potential. We carried out field measurements concurrently with the collection of ASTER images. The field

176

Semi-Continuous Detection of Mercury in Gases  

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

Continuous Detection of Mercury in Gases Continuous Detection of Mercury in Gases Opportunity Research is currently active on the patented technology "Semi-Continuous Detection of Mercury in Gases." The technology, which is a spinoff of the National Energy Technology Laboratory's (NETL) GP-254 Process (U.S. patent 6,576,092), is available for licensing and/or further collaborative research from the U.S. Department of Energy's NETL. Overview This invention discloses a method for the quantitative detection of heavy metals, especially mercury, in effluent gas streams. The method employs photo-deposition and an array of surface acoustic wave sensors where each sensor monitors a specific metal. The U.S. Environmental Protection Agency issued a national regulation for mercury removal from coal-derived flue and fuel gases in December 2011,

177

E-Print Network 3.0 - artery detected incidentally Sample Search...  

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

gelatinolytic activity was detected... arteries. Odile Dumont, B.Sc., Laurent Loufrani, Ph.D., Daniel Henrion, Pharm.D., Ph.D.; CNRS UMR 6214... ; INSERM UMR 771; University of...

178

GrIDS A GRAPH BASED INTRUSION DETECTION SYSTEM FOR LARGE NETWORKS  

E-Print Network [OSTI]

or groups of hosts. By analyzing the characteristics of the activity graphs, GrIDS detects and reports under contract DOD DABT 63-93-C-0045. intra-networks intranets to share and disseminate internal

California at Davis, University of

179

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

180

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

Note: This page contains sample records for the topic "detectable activity mda" 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

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.

182

.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 Lobão…

2004-01-01T23:59:59.000Z

183

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.

184

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

185

An on-line fault detection technique based on embedded debug features  

Science Journals Connector (OSTI)

An increasing number of applications require being able to detect possible faults arising during the normal activity of the electronic system: for this reason, on-line fault detection is a hot topic today. This paper proposes a new technique which is ...

M. Grosso; M. Sonza Reorda; M. Portela-Garcia; M. Garcia-Valderas; C. Lopez-Ongil; L. Entrena

2010-07-01T23:59:59.000Z

186

Ultra-Sensitive CoUinear Fast Ion Beam Trace Detection of ^^Kr  

E-Print Network [OSTI]

, USA Texas A&M University Qatar 'TRIUMF, Vancouver, Canada inergy Institute, Tokc Coming Inc., USA tracer gas for exploring the reservoir structure of large oil fields. *^Kr detection in ambient air of large oil fields. ^^Kr detection in ambient air is also of importance for monitoring nuclear activities

Schuessler, Hans

187

DNA Activity  

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

DNA Activity DNA Activity Name: Sara Location: N/A Country: N/A Date: N/A Question: Is DNA an anion or a cation? I thought since it was negatively charged it was an anion but mt teacher in class today said it was a cation because negatively charged molecules logically migrate to the positively charged plate of the cathode, ie molecules that migrate towards a cathode are cations. Where is the error in my logic or there error in my logic? Replies: DNA is negatively charged due to the phosphate ions present in the ribose-phosphate backbone. It moves towards the positive pole during electrophoresis. The definition kation/anion is confusing because: 1. a cation moves to the cathode 2. the cathode is negative, thus 3. a cation is positive DNA is an anion. The confusion is that a cathode is negative, but a cation is positively charged. For that reason these terms are not generally used in this context.

188

E-Print Network 3.0 - activity recorded simultaneously Sample...  

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

Summary: corresponding to the gait periods were segmented from the full record, and a standard voice activity detection... simultaneously in patients with Alzheimer's disease...

189

E-Print Network 3.0 - activation element exerting Sample Search...  

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

activities, in particular, greenhouse gases... and application of comprehensive Earth system models. 13 - Elements of linear detection theory: EOFs of natural Source: Black,...

190

Neutron activation analysis  

Science Journals Connector (OSTI)

Neutron activation analysis ... Describes the science and techniques of neutron activation analysis. ...

H. R. Lukens

1967-01-01T23:59:59.000Z

191

Detecting fission from special nuclear material sources  

DOE Patents [OSTI]

A neutron detector system for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. The system includes a graphing component that displays the plot of the neutron distribution from the unknown source over a Poisson distribution and a plot of neutrons due to background or environmental sources. The system further includes a known neutron source placed in proximity to the unknown source to actively interrogate the unknown source in order to accentuate differences in neutron emission from the unknown source from Poisson distributions and/or environmental sources.

Rowland, Mark S. (Alamo, CA); Snyderman, Neal J. (Berkeley, CA)

2012-06-05T23:59:59.000Z

192

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

193

Safeguarding Quantum Key Distribution through Detection Randomization  

E-Print Network [OSTI]

We propose and experimentally demonstrate a scheme to render the detection apparatus of a Quantum Key Distribution system immune to the main classes of hacking attacks in which the eavesdropper explores the back-door opened by the single-photon detectors. The countermeasure is based on the creation of modes that are not deterministically accessible to the eavesdropper. We experimentally show that the use of beamsplitters and extra single-photon detectors at the receiver station passively creates randomized spatial modes that erase any knowledge the eavesdropper might have gained when using bright-light faked states. Additionally, we experimentally show a detector-scrambling approach where the random selection of the detector used for each measurement - equivalent to an active spatial mode randomization - hashes out the side-channel open by the detection efficiency mismatch-based attacks. The proposed combined countermeasure represents a practical and readily implementable solution against the main classes of quantum hacking attacks aimed on the single-photon detector so far, without intervening on the inner working of the devices.

Thiago Ferreira da Silva; Gustavo C. do Amaral; Guilherme B. Xavier; Guilherme P. Temporão; Jean Pierre von der Weid

2014-10-02T23:59:59.000Z

194

A generative model for activations in functional MRI  

E-Print Network [OSTI]

Detection of brain activity and selectivity using functional magnetic resonance imaging (fMRI) provides unique insight into the underlying functional properties of the brain. We propose a generative model that jointly ...

Sridharan, Ramesh

2011-01-01T23:59:59.000Z

195

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

196

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...

197

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

198

Strategies To Detect Hidden Geothermal Systems Based On Monitoring and  

Open Energy Info (EERE)

To Detect Hidden Geothermal Systems Based On Monitoring and To Detect Hidden Geothermal Systems Based On Monitoring and Analysis Of CO2 In The Near-Surface Environment Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Strategies To Detect Hidden Geothermal Systems Based On Monitoring and Analysis Of CO2 In The Near-Surface Environment Details Activities (5) Areas (1) Regions (0) Abstract: We investigate the potential for CO2 monitoring in thenear-surface environment as an approach to exploration for hiddengeothermal systems. Numerical simulations of CO2 migration from a modelhidden geothermal system show that CO2 concentrations can reach highlevels in the shallow subsurface even for relatively low CO2 fluxes.Therefore, subsurface measurements offer an advantage over above-groundmeasurements which are affected by winds that rapidly disperse

199

Pollen genetic markers for detection of mutagens in the environment  

SciTech Connect (OSTI)

To utilize and exploit pollen for in situ mutagen monitoring, screening and toxicology, the range of genetic traits in pollen must be identified and analyzed. To be useful for the development of mutagen detection systems proteins should be: (1) activity stainable or immunologically identifiable in the pollen, (2) the products of one to three loci; and (3) gametophytic and nuclear in origin. Several proteins, including alcohol dehydrogenase in maize, which meet these criteria are discussed. The waxy locus in barley and maize which controls starch deposition for pollen screening and mutant detection. Thirty waxy mutant lines, induced by sodium azide and gamma-rays are characterized for spontaneous and induced reversion frequencies, allelism, karyotype, amylose content, and UDPglucose glucosyltransferase (waxy gene product) activity. Twelve mutant alleles are being mapped by recombinant frequencies.

Nilan, R.A.; Rosichan, J.L.; Arenaz, P.; Hodgdon, A.L.; Kleinhofs, A.

1980-01-01T23:59:59.000Z

200

A computational framework for detecting malicious actors in communities  

Science Journals Connector (OSTI)

Despite the significant research achievements on the study of communities, how to maintain a benign social environment for a community, as a problem, has not received much attention. Current existing malicious activity detecting mechanisms are subject to the limitation of the underlying online environment. However, we found that information plays an important role in terms of socialisation. Malicious activities, like diffusing unreliable information and providing inappropriate critics, can severely impact the situation of a community's social environment. In this paper, we propose a computational framework for detecting malicious actors in communities from the perspective of information diffusion. We use the term, 'malicious actors', to represent a group of people who intentionally or unintentionally conduct malicious behaviours to sabotage benign social environments of communities.

Justin Zhan; Xing Fang

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

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...

202

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

203

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

204

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

205

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

206

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

207

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

208

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

209

Project of the underwater system for chemical threat detection  

E-Print Network [OSTI]

In this article we describe a novel method for the detection of explosives and other hazardous substances in the marine environment using neutron activation. Unlike the other considered methods based on this technique we propose to use guides forneutron and gamma quanta which speeds up and simplifies identification. Moreover, it may provide a determination of the density distribution of a dangerous substance. First preliminary results of Monte Carlo simulations dedicated for design of a device exploiting this method are also presented.

Silarski, M; Moskal, P; Smolis, M; Tadeja, S

2015-01-01T23:59:59.000Z

210

Intermediate Energy Infobook Activities (29 Activities)  

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

Information about Intermediate Energy Infobook, 29 student activities on energy basics for grades 5-8.

211

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

212

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

213

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

214

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

215

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

216

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

217

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

218

Secondary Energy Infobook Activities (19 Activities)'  

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

Infobook Activities (19 Activities) Grades: 9-12 Topics: Energy Basics Owner: NEED This educational material is brought to you by the U.S. Department of Energy's Office of Energy...

219

Secondary Energy Infobook Activities (19 Activities)  

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

Information about Secondary Energy Infobook, 19 student activities on energy basics for grades 5-8 and 9-12.

220

Method and apparatus for enhanced detection of toxic agents  

DOE Patents [OSTI]

A biosensor based detection of toxins includes enhancing a fluorescence signal by concentrating a plurality of photosynthetic organisms in a fluid into a concentrated region using biased AC electro-osmosis. A measured photosynthetic activity of the photosynthetic organisms is obtained in the concentrated region, where chemical, biological or radiological agents reduce a nominal photosynthetic activity of the photosynthetic organisms. A presence of the chemical, biological and/or radiological agents or precursors thereof, is determined in the fluid based on the measured photosynthetic activity of the concentrated plurality of photosynthetic organisms. A lab-on-a-chip system is used for the concentrating step. The presence of agents is determined from feature vectors, obtained from processing a time dependent signal using amplitude statistics and/or time-frequency analysis, relative to a control signal. A linear discriminant method including support vector machine classification (SVM) is used to identify the agents.

Greenbaum, Elias; Rodriguez, Jr., Miguel; Wu, Jie Jayne; Qi, Hairong

2013-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

NSLS Activity Report  

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

Activity Report Activity Report 2009 Activity Report Covering October 1, 2008 - September 30, 2009 Periodic Table Dust Jacket 2008 Activity Report Covering October 1, 2007 - September 30, 2008 2007 Activity Report Covering October 1, 2006 - September 30, 2007 Science Highlights PDF Publications PDF 2006 Activity Report Covering October 1, 2005 - September 30, 2006 2005 Activity Report Covering October 1, 2004 - September 30, 2005 2004 Activity Report Covering October 1, 2003 - September 30, 2004 2003 Activity Report Covering October 1, 2002 - September 30, 2003 2002 Activity Report Covering October 1, 2001 - September 30, 2002 2001 Activity Report Covering October 1, 2000 - September 30, 2001 2000 Activity Report Covering October 1, 1999 - September 30, 2000 1999 Activity Report Covering October 1, 1998 - September 30, 1999

222

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

223

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 ORNL’s 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

224

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

225

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

226

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

227

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

228

A New Cyclostationarity-Based Blind Approach for Motor Unit's Firing Rate Automated Detection in Electromyographic Signals  

E-Print Network [OSTI]

of these electric fields provides a specific waveform called Motor Unit Action Potential (MUAP). This fullA New Cyclostationarity-Based Blind Approach for Motor Unit's Firing Rate Automated Detection that aims at detecting the firing rates of the activated motor units. The proposed method is based

Paris-Sud XI, Université de

229

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

230

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

231

Early Lung Cancer Detection Program  

Broader source: Energy.gov [DOE]

Since 2000, DOE has made screening for occupational lung cancer with low-dose helical computed tomography (CT) scans available to workers at high risk for lung cancer. Because former workers undertook essential activities to fulfill the Department's mission, many of them were at risk for lung cancer.

232

Activity Based Costing  

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

Activity Based Costing (ABC) is method for developing cost estimates in which the project is subdivided into discrete, quantifiable activities or a work unit. This chapter outlines the Activity Based Costing method and discusses applicable uses of ABC.

1997-03-28T23:59:59.000Z

233

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

234

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

235

Former Worker Program - Early Lung Cancer Detection Program  

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

Former Worker Program (FWP) Former Worker Program (FWP) Home Covered Sites/Populations › Construction Worker Screening Projects › Production Worker Screening Projects › Supplemental Screening Program › Beryllium Vendor Screening Program Upcoming Events Program Implementation Outreach Medical Screening - Conventional Medical Screening - Early Lung Cancer Detection Communicating Results Protecting Participant Information Sharing De-identified Data Chronic Beryllium Disease Awareness Joint Outreach Task Group (JOTG) Worker Testimonials Contact Us FWP Scientific Publications FWP Documents Related Links Office of Health and Safety Home Page HSS Logo Early Lung Cancer Detection Program Former Worker Medical Screening Program (FWP) Since 2000, DOE has made screening for occupational lung cancer with low-dose helical computed tomography (CT) scans available to workers at high risk for lung cancer. Because former workers undertook essential activities to fulfill the Department's mission, many of them were at risk for lung cancer. Through the FWP, DOE initiated the Early Lung Cancer Detection (ELCD) program using low-dose helical CT scans to detect lung cancers at an earlier, more treatable stage. Lung cancer results in about 160,000 deaths in the U.S. every year. The most common causes of lung cancer are long-term exposures to tobacco smoke and residential radon emissions, but occupational hazards, such as asbestos and ionizing radiation, also cause or contribute to the disease.

236

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

237

Incipient Crack Detection in Composite Wind Turbine Blades  

SciTech Connect (OSTI)

This paper presents some analysis results for incipient crack detection in a 9-meter CX-100 wind turbine blade that underwent fatigue loading to failure. The blade was manufactured to standard specifications, and it underwent harmonic excitation at its first resonance using a hydraulically-actuated excitation system until reaching catastrophic failure. This work investigates the ability of an ultrasonic guided wave approach to detect incipient damage prior to the surfacing of a visible, catastrophic crack. The blade was instrumented with piezoelectric transducers, which were used in an active, pitchcatch mode with guided waves over a range of excitation frequencies. The performance results in detecting incipient crack formation in the fiberglass skin of the blade is assessed over the range of frequencies in order to determine the point at which the incipient crack became detectable. Higher excitation frequencies provide consistent results for paths along the rotor blade's carbon fiber spar cap, but performance falls off with increasing excitation frequencies for paths off of the spar cap. Lower excitation frequencies provide more consistent performance across all sensor paths.

Taylor, Stuart G. [Los Alamos National Laboratory; Choi, Mijin [Chonbuk National University, Korea; Jeong, Hyomi [Chonbuk National University, Korea; Jang, Jae Kyeong [Chonbuk National University, Korea; Park, Gyuhae [Chonnam National University, Korea; Farinholt, Kevin [Commonwealth Center for Advanced Manufacturing, VA; Farrar, Charles R. [Los Alamos National Laboratory; Ammerman, Curtt N. [Los Alamos National Laboratory; Todd, Michael D. [Los Alamos National Laboratory; Lee, Jung-Ryul [Chonbuk National University, Korea

2012-08-28T23:59:59.000Z

238

4840 recreation activity [n  

Science Journals Connector (OSTI)

recr. (Generic term covering all types of recreation pursuits for individuals or groups; ? vacation activity [US] /holiday activity [UK]); syn. recreation pur...

2010-01-01T23:59:59.000Z

239

Strategies For Detecting Hidden Geothermal Systems By Near-Surface Gas  

Open Energy Info (EERE)

Strategies For Detecting Hidden Geothermal Systems By Near-Surface Gas Strategies For Detecting Hidden Geothermal Systems By Near-Surface Gas Monitoring Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Strategies For Detecting Hidden Geothermal Systems By Near-Surface Gas Monitoring Details Activities (6) Areas (1) Regions (0) Abstract: Hidden geothermal systems are those systems above which hydrothermal surface features (e.g., hot springs, fumaroles, elevated ground temperatures, hydrothermal alteration) are lacking. Emissions of moderate to low solubility gases (e.g., CO2, CH4, He) may be one of the primary near-surface signals from these systems. Detection of anomalous gas emissions related to hidden geothermal systems may therefore be an important tool to discover new geothermal resources. This study investigates the potential for CO2 detection and monitoring in the

240

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

Note: This page contains sample records for the topic "detectable activity mda" 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

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

242

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

243

Remote Detection Of Quaternary Borate Deposits With Aster Satellite Imagery  

Open Energy Info (EERE)

Of Quaternary Borate Deposits With Aster Satellite Imagery Of Quaternary Borate Deposits With Aster Satellite Imagery As A Geothermal Exploration Tool Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Remote Detection Of Quaternary Borate Deposits With Aster Satellite Imagery As A Geothermal Exploration Tool Details Activities (2) Areas (2) Regions (0) Abstract: Unavailable Author(s): C. Kratt, M. Coolbaugh, Wendy Calvin Published: GRC, 2006 Document Number: Unavailable DOI: Unavailable Multispectral Imaging At Rhodes Marsh Area (Kratt, Et Al., 2006) Multispectral Imaging At Teels Marsh Area (Kratt, Et Al., 2006) Rhodes Marsh Geothermal Area Teels Marsh Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Remote_Detection_Of_Quaternary_Borate_Deposits_With_Aster_Satellite_Imagery_As_A_Geothermal_Exploration_Tool&oldid=389959

244

Distributed Optical Sensor for CO2 Leak Detection  

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

Optical Sensor for CO Optical Sensor for CO 2 Leak Detection Opportunity Research is active on the technology "Distributed Optical Sensor for CO 2 Leak Detection," for which a Patent Application has been filed. This technology is available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory (NETL). Overview The availability of fossil fuels to provide clean, affordable energy is essential for domestic and global prosperity and security well into the 21st century. However, there are concerns over the impacts of greenhouse gases (GHGs) in the atmosphere-particularly carbon dioxide (CO 2 ). Carbon capture and storage in geologic formations is a promising technology to reduce the impact of CO

245

Simulation and modeling for the stand-off radiation detection system (SORDS) using GEANT4  

SciTech Connect (OSTI)

A Stand-Off Radiation Detection System (SORDS) is being developed through a joint effort by Raytheon, Los Alamos National Laboratory, Bubble Technology Industries, Radiation Monitoring Devices, and the Massachusetts Institute of Technology, for the Domestic Nuclear Detection Office (DNDO). The system is a mobile truck-based platform performing detection, imaging, and spectroscopic identification of gamma-ray sources. A Tri-Modal Imaging (TMI) approach combines active-mask coded aperture imaging, Compton imaging, and shadow imaging techniques. Monte Carlo simulation and modeling using the GEANT4 toolkit was used to generate realistic data for the development of imaging algorithms and associated software code.

Hoover, Andrew S [Los Alamos National Laboratory; Wallace, Mark [Los Alamos National Laboratory; Galassi, Mark [Los Alamos National Laboratory; Mocko, Michal [Los Alamos National Laboratory; Palmer, David [Los Alamos National Laboratory; Schultz, Larry [Los Alamos National Laboratory; Tornga, Shawn [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

246

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

247

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

248

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

249

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

250

Weatherization and Intergovernmental Activities  

Office of Energy Efficiency and Renewable Energy (EERE)

Weatherization and Intergovernmental Activities Annual Performance Results and Targets FY 2008 Congressional Budget

251

A large 2D PSD for thermal neutron detection  

SciTech Connect (OSTI)

A 2D PSD based on a MWPC has been constructed for a small angle neutron scattering instrument. The active area of the detector was 640 x 640 mm{sup 2}. To meet the specifications for neutron detection efficiency and spatial resolution, and to minimize parallax, the gas mixture was 190 kPa {sup 3}He plus 100 kPa CF{sub 4} and the active volume had a thickness of 30 mm. The design maximum neutron count-rate of the detector was 10{sup 5} events per second. The (calculated) neutron detection efficiency was 60% for 2{angstrom} neutrons and the (measured) neutron energy resolution on the anode grid was typically 20% (fwhm). The location of a neutron detection event within the active area was determined using the wire-by-wire method: the spatial resolution (5 x 5 mm{sup 2}) was thereby defined by the wire geometry. A 16 channel charge-sensitive preamplifier/amplifier/comparator module has been developed with a channel sensitivity of 0.1 V/fC, noise linewidth of 0.4 fC (fwhm) and channel-to-channel cross-talk of less than 5%. The Proportional Counter Operating System (PCOS III) (LeCroy Corp USA) was used for event encoding. The ECL signals produced by the 16 channel modules were latched in PCOS III by a trigger pulse from the anode and the fast encoders produce a position and width for each event. The information was transferred to a UNIX workstation for accumulation and online display.

Knott, R.B.; Watt, G.; Boldeman, J.W. [Australian Nuclear Science and Technology Organization, Menai, New South Wales (Australia). Physics Div.; Smith, G.C. [Brookhaven National Lab., Upton, NY (United States). Instrumentation Div.

1996-12-31T23:59:59.000Z

252

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...

253

Detection of nucleic acid sequences by invader-directed cleavage  

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 5' 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. The present invention further relates to methods and devices for the separation of nucleic acid molecules based by charge.

Brow, Mary Ann D. (Madison, WI); Hall, Jeff Steven Grotelueschen (Madison, WI); Lyamichev, Victor (Madison, WI); Olive, David Michael (Madison, WI); Prudent, James Robert (Madison, WI)

1999-01-01T23:59:59.000Z

254

Boron-10 ABUNCL Active Testing  

SciTech Connect (OSTI)

The Department of Energy Office of Nuclear Safeguards and Security (NA-241) is supporting the project Coincidence Counting With Boron-Based Alternative Neutron Detection Technology at Pacific Northwest National Laboratory (PNNL) for the development of a 3He proportional counter alternative neutron coincidence counter. The goal of this project is to design, build and demonstrate a system based upon 10B-lined proportional tubes in a configuration typical for 3He-based coincidence counter applications. This report provides results from testing of the active mode of the General Electric Reuter-Stokes Alternative Boron-Based Uranium Neutron Coincidence Collar (ABUNCL) at Los Alamos National Laboratory using sources and fuel pins.

Kouzes, Richard T.; Ely, James H.; Lintereur, Azaree T.; Siciliano, Edward R.

2013-07-09T23:59:59.000Z

255

Active Sensing Shipeng Yu, Balaji Krishnapuram, Romer Rosales, R. Bharat Rao  

E-Print Network [OSTI]

of the active sensing setting described above are abundant. For land mine detection in a sensor net- work, weActive Sensing Shipeng Yu, Balaji Krishnapuram, Romer Rosales, R. Bharat Rao CAD and Knowledge expensive to get, and this motivates active learning which chooses the most informative samples for label

Rosales, Rómer E.

256

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

257

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

258

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

259

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)....

260

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

Note: This page contains sample records for the topic "detectable activity mda" 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

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

262

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

263

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

264

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

265

Integration of microwave and thermographic NDT methods for corrosion detection  

Science Journals Connector (OSTI)

Infrastructure health monitoring is an important issue in the transportation industry. For the case of cement-based structures in particular detection of corrosion on reinforcing steel bars (rebar) is an ongoing problem for aging infrastructure. There have been a number of techniques that have shown promise in this area including microwave nondestructive testing (NDT) and thermography. Thermography is quite advantageous as it is an established method and can be utilized for large inspection areas with intuitive results. Typical heat sources include induction heating and flash lamps but these are not without drawbacks. Microwave nondestructive testing has also been successful at detecting corroded rebar but at the cost of lengthy scan times. This paper presents an investigation into the potential of utilizing aspects of microwave NDT and thermography to create a hybrid NDT method herein referred to as Active Microwave Thermography (AMT). AMT takes advantage of the electromagnetically lossy nature of corrosion byproducts and uses microwave energy to induce heat in the corrosion. Subsequently the resultant heat profile is captured using an infrared camera. This paper presents initial simulations and measurements that highlight the potential of AMT to detect corroded rebar.

2014-01-01T23:59:59.000Z

266

Detecting Human Movement by Differential Air Pressure Sensing  

E-Print Network [OSTI]

Abstract. We have developed an approach for whole-house gross movement and room transition detection through sensing at only one point in the home. We consider this system to be one member of an important new class of human activity monitoring approaches based on what we call infrastructure mediated sensing, or "home bus snooping. " Our solution leverages the existing ductwork infrastructure of central heating, ventilation, and air conditioning (HVAC) systems found in many homes. Disruptions in airflow, caused by human interroom movement, result in static pressure changes in the HVAC air handler unit. This is particularly apparent for room-to-room transitions and door open/close events involving full or partial blockage of doorways and thresholds. We detect and record this pressure variation from sensors mounted on the air filter and classify where certain movement events are occurring in the house, such as an adult walking through a particular doorway or the opening and closing of a particular door. In contrast to more complex distributed sensing approaches for motion detection in the home, our method requires the installation of only a single sensing unit (i.e., an instrumented air filter) connected to an embedded or personal computer that performs the classification function. Preliminary results show we can classify unique transition events with up to 75-80 % accuracy. 1

Shwetak N. Patel; Matthew S. Reynolds; Gregory D. Abowd

2008-01-01T23:59:59.000Z

267

active (pharmaceutical) ingredient (API)  

Science Journals Connector (OSTI)

Pharmacologically active part(s) of a formulation; in case of a salt, the active ingredient should be understood to include both, the therapeutic moiety and the appended portion of the molecule; the maximum ac...

Dr. med. Dr. phil. Gerhard Nahler

2009-01-01T23:59:59.000Z

268

Osmosis with active solutes  

E-Print Network [OSTI]

Despite much current interest in active matter, little is known about osmosis in active systems. Using molecular dynamics simulations, we investigate how active solutes perturb osmotic steady states. We find that solute activity increases the osmotic pressure, and can also expel solvent from the solution - i.e. cause reverse osmosis. The latter effect cannot be described by an effective temperature, but can be reproduced by mapping the active solution onto a passive one with the same degree of local structuring as the passive solvent component. Our results provide a basic framework for understanding active osmosis, and suggest that activity-induced structuring of the passive component may play a key role in the physics of active-passive mixtures.

Thomas W. Lion; Rosalind J. Allen

2014-02-06T23:59:59.000Z

269

Osmosis with active solutes  

E-Print Network [OSTI]

Despite much current interest in active matter, little is known about osmosis in active systems. Using molecular dynamics simulations, we investigate how active solutes perturb osmotic steady states. We find that solute activity increases the osmotic pressure, and can also expel solvent from the solution - i.e. cause reverse osmosis. The latter effect cannot be described by an effective temperature, but can be reproduced by mapping the active solution onto a passive one with the same degree of local structuring as the passive solvent component. Our results provide a basic framework for understanding active osmosis, and suggest that activity-induced structuring of the passive component may play a key role in the physics of active-passive mixtures.

Lion, Thomas W

2014-01-01T23:59:59.000Z

270

VOLUNTEER ACTIVITY 5  

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

Energy Conservation: Did I remember to...? Activity Type: Craft and Game Supports Lesson Five: Global Warming Grades 4-6

271

Science Activities in Biomass  

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

Activities in Biomass Curriculum: Biomass Power (organic chemistry, genetics, distillation, agriculture, chemicalcarbon cycles, climatology, plants and energy resources...

272

Compressed Sensing Meets Change-Point Detection  

E-Print Network [OSTI]

of weak signals: How to use signal correlation? Technical Report, 2011. 2/53 #12;Solar flare detection June, 2012. I solar storm: a large explosion in the sun's atmosphere I a direct hit by solar storm can shut down power lines, and destroy airplane communications I predict major solar storms: detecting

Xie, Yao

273

Detecting Fraud in Cellular Telephone Networks  

E-Print Network [OSTI]

Detecting Fraud in Cellular Telephone Networks Johan H van Heerden Thesis presented for the degree fraud. Hence it is of great importance that fraud management sys- tems are implemented to detect, alarm, and shut down fraud within minutes, minimising revenue loss. Modern proprietary fraud management systems

van Vuuren, Jan H.

274

DETECTING COLLUSIVE FRAUD IN ENTERPRISE RESOURCE  

E-Print Network [OSTI]

Chapter 6 DETECTING COLLUSIVE FRAUD IN ENTERPRISE RESOURCE PLANNING SYSTEMS Asadul Islam, Malcolm advances, fraud is becoming increasingly complicated and difficult to detect, especially when individuals collude. Surveys show that the median loss from collusive fraud is much greater than fraud perpetrated

Flegel, Ulrich

275

Detecting a Network Failure Jon Kleinberg #  

E-Print Network [OSTI]

this notion applied in settings that range from Internet topology discovery tools to remote software agents: detecting a network failure. Suppose we want to detect events of the following form: an adversary destroys itself. Moreover, random sampling provides an e#ective way to construct such a set. Our analysis

Kleinberg, Jon

276

Dynamic detection of nuclear reactor core incident  

Science Journals Connector (OSTI)

Surveillance, safety and security of evolving systems are a challenge to prevent accident. The dynamic detection of a hypothetical and theoretical blockage incident in the Phenix nuclear reactor is investigated. Such an incident is characterized by abnormal ... Keywords: Contrast, Dynamic detection of perturbations, Evolving system, Fast-neutron reactor, Neighbourhood, Noise

Laurent Hartert; Danielle Nuzillard; Jean-Philippe Jeannot

2013-02-01T23:59:59.000Z

277

Reviewing P2P network community detection  

Science Journals Connector (OSTI)

In this paper we present a summary of the state of the art concerning community detection in distributed computer architectures, for instance so-called P2P systems. The main algorithms for the extraction of communities are reviewed. Each set of nodes ... Keywords: P2P, clustering, community detection algorithms, networks

Anna Puig-Centelles; Oscar Ripolles; Miguel Chover

2007-03-01T23:59:59.000Z

278

Paper Nose Detects By David Bradley,  

E-Print Network [OSTI]

-coated slip could be used to detect deadly toxins, poisonous gases in chemical warfare, and environmental pollutants. It could even find use in the food industry for spotting sour milk and food that has gone bad-seeing arrays could be used in the food and drink industry to detect flavorings, additives or food spoilage

Suslick, Kenneth S.

279

Patch Clamp Detection in Capillary Electrophoresis  

Science Journals Connector (OSTI)

Patch Clamp Detection in Capillary Electrophoresis ... Improved patch-clamp techniques for high-resolution current recording from cells and cell-free membrane patches ... The extracellular patch clamp method, which first allowed the detection of single channel currents in biological membranes, has been further refined to enable higher current resolution, direct membrane patch potential control, and physical isolation of membrane patches. ...

Kent Jardemark; Owe Orwar; Ingemar Jacobson; Alexander Moscho; Richard N. Zare

1997-09-01T23:59:59.000Z

280

8, 22252248, 2008 Detection of oxygen  

E-Print Network [OSTI]

ACPD 8, 2225­2248, 2008 Detection of oxygen emission related to spring bloom H. Yamagishi et al Chemistry and Physics Discussions Detection of regional scale sea-to-air oxygen emission related to spring bloom near Japan by using in-situ measurements of atmospheric oxygen/nitrogen ratio H. Yamagishi 1 , Y

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "detectable activity mda" 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

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

282

Redmond Red as a Redox Probe for the DNA-Mediated Detection of Abasic Sites  

Science Journals Connector (OSTI)

Redmond Red, a fluoropore containing a redox-active phenoxazine core, has been explored as a new electrochemical probe for the detection of abasic sites in double-stranded DNA. The electrochemical behavior of Redmond Red-modified DNA at gold surfaces ...

Marisa C. Buzzeo; Jacqueline K. Barton

2008-10-03T23:59:59.000Z

283

Direct Detection of Calmodulin Tuning by Ryanodine Receptor Channel Targets Using a Ca2+  

E-Print Network [OSTI]

Direct Detection of Calmodulin Tuning by Ryanodine Receptor Channel Targets Using a Ca2+ -Sensitive, 2004 ABSTRACT: Calmodulin (CaM) activates the skeletal muscle ryanodine receptor (RyR1) at nanomolar Ca2+ concentrations but inhibits it at micromolar Ca2+ concentrations, indicating that binding of Ca2

Thomas, David D.

284

Carbon-on-Metal Films for Surface Plasmon Resonance Detection of Matthew R. Lockett,  

E-Print Network [OSTI]

Carbon-on-Metal Films for Surface Plasmon Resonance Detection of DNA Arrays Matthew R. Lockett of a lamellar structure in which a thin layer of amorphous carbon is deposited onto a surface plasmon-active gold thin film (Figure 1a). Carbon-based surfaces are readily modified with biomolecules of interest

285

Live pathogens: rapid detection technique developed  

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

January » January » Live Pathogens: Rapid Detection Technique Developed Live pathogens: rapid detection technique developed The technique relies on bacteria being critically dependent upon the key nutrient iron. January 24, 2013 Colorized scanning electron micrograph of E. coli. Colorized scanning electron micrograph of E. coli. Photo credit: US Centers for Disease Control and Prevention LANL's new method eliminates the need for laboratory culture and greatly speeds the process. Los Alamos researchers have developed a better technique for quick detection of live pathogens in the field. Identification of viable bacteria in a complex environment is scientifically challenging. Current detection and diagnostic techniques are inadequate in major public health emergencies, such as outbreaks of food-borne illness. Detection of live

286

Advancing the art of tuberculosis detection  

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

Advancing art of tuberculosis detection Advancing art of tuberculosis detection Advancing the art of tuberculosis detection New approach to finding a TB biomarker could provide earlier diagnosis. April 19, 2013 Los Alamos National Laboratory researcher Harshini Mukundan is exploring new ways to detect and diagnose tuberculosis. Los Alamos National Laboratory researcher Harshini Mukundan is exploring new ways to detect and diagnose tuberculosis. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email This observation has far-reaching applications to the understanding of the interaction of the human host with many pathogens, not just TB. LOS ALAMOS, N.M., April 19, 2013-New work from Los Alamos National Laboratory shows promise for stemming the advance of tuberculosis (TB) by revealing how the bacterium interacts with its human hosts and thus

287

Laser-based Sensors for Chemical Detection  

SciTech Connect (OSTI)

Stand-off detection of hazardous materials ensures that the responder is located at a safe distance from the suspected source. Remote detection and identification of hazardous materials can be accomplished using a highly sensitive and portable device, at significant distances downwind from the source or the threat. Optical sensing methods, in particular infrared absorption spectroscopy combined with quantum cascade lasers (QCLs), are highly suited for the detection of chemical substances since they enable rapid detection and are amenable for autonomous operation in a compact and rugged package. This talk will discuss the sensor systems developed at Pacific Northwest National Laboratory and will discuss the progress to reduce the size and power while maintaining sensitivity to enable stand-off detection of multiple chemicals.

Myers, Tanya L.; Phillips, Mark C.; Taubman, Matthew S.; Bernacki, Bruce E.; Schiffern, John T.; Cannon, Bret D.

2010-05-10T23:59:59.000Z

288

Near-Surface Co2 Monitoring And Analysis To Detect Hidden Geothermal  

Open Energy Info (EERE)

Near-Surface Co2 Monitoring And Analysis To Detect Hidden Geothermal Near-Surface Co2 Monitoring And Analysis To Detect Hidden Geothermal Systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Near-Surface Co2 Monitoring And Analysis To Detect Hidden Geothermal Systems Details Activities (5) Areas (1) Regions (0) Abstract: Hidden geothermal systems are systems devoid of obvious surface hydrothermal manifestations. Emissions of moderate-to-low solubility gases may be one of the primary near-surface signals from these systems. We investigate the potential for CO2 detection and monitoring below and above ground in the near-surface environment as an approach to exploration targeting hidden geothermal systems. We focus on CO2 because it is the dominant noncondensible gas species in most geothermal systems and has

289

Far-infrared contraband-detection-system development for personnel-search applications  

SciTech Connect (OSTI)

Experiments have been conducted toward the development of an active near-millimeter-wave, far infrared, personnel search system for the detection of contraband. These experiments employed a microwave hybrid tee interferometer/radiometer scanning system and quasi-optical techniques at 3.3-mm wavelength to illuminate and detect the reflection from target objects against a human body background. Clothing and other common concealing materials are transport at this wavelength. Retroreflector arrays, in conjunction with a Gunn diode radiation source, were investigated to provide all-angle illumination and detection of specular reflections from unaligned and irregular-shaped objects. Results indicate that, under highly controlled search conditions, metal objects greater than or equal to 25 cm/sup 2/ can be detected in an enclosure lined with retroreflectors. Further development is required to produce a practical personnel search system. The investigation and feasibility of alternate far infrared search techniques are presented. 23 figures, 2 tables.

Schellenbaum, R. L.

1982-09-01T23:59:59.000Z

290

Plasma Drug Activity in Patients on Treatment for Multidrug-Resistant Tuberculosis  

Science Journals Connector (OSTI)

...research-article Clinical Therapeutics Plasma Drug Activity in Patients on Treatment...Florida, USA Little is known about plasma drug concentrations relative to quantitative...the ratio of the time to detection of plasma-cocultured Mycobacterium tuberculosis...

Stellah G. Mpagama; Norah Ndusilo; Suzanne Stroup; Happiness Kumburu; Charles A. Peloquin; Jean Gratz; Eric R. Houpt; Gibson S. Kibiki; Scott K. Heysell

2013-11-18T23:59:59.000Z

291

Relationship between QTLs for preharvest sprouting and alpha-amylase activity in rye grain  

Science Journals Connector (OSTI)

Preharvest sprouting (PHS) and high alpha-amylase activity (AA) negatively affect quality of...2...mapping populations representing wide variation range of both traits. Sixteen QTLs for AA were detected on chromo...

Piotr Masoj?; Pawe? Milczarski

2009-01-01T23:59:59.000Z

292

E-Print Network 3.0 - alters methyltransferase activity Sample...  

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

activity on substrates that included calf thymus histones H2A and H4 as well as myelin basic... protein 12. However, later studies were not able to detect ......

293

Sensor for detecting changes in magnetic fields  

DOE Patents [OSTI]

A sensor for detecting changes in the magnetic field of the equilibrium-field coil of a Tokamak plasma device comprises a pair of bifilar wires disposed circumferentially, one inside and one outside the equilibrium-field coil. Each is shorted at one end. The difference between the voltages detected at the other ends of the bifilar wires provides a measure of changing flux in the equilibrium-field coil. This difference can be used to detect faults in the coil in time to take action to protect the coil.

Praeg, Walter F. (Palos Park, IL)

1981-01-01T23:59:59.000Z

294

High sensitivity leak detection method and apparatus  

DOE Patents [OSTI]

An improved leak detection method is provided that utilizes the cyclic adsorption and desorption of accumulated helium on a non-porous metallic surface. The method provides reliable leak detection at superfluid helium temperatures. The zero drift that is associated with residual gas analyzers in common leak detectors is virtually eliminated by utilizing a time integration technique. The sensitivity of the apparatus of this disclosure is capable of detecting leaks as small as 1.times.10.sup.-18 atm cc sec.sup.-1.

Myneni, Ganapatic R. (Grafton, VA)

1994-01-01T23:59:59.000Z

295

High sensitivity leak detection method and apparatus  

DOE Patents [OSTI]

An improved leak detection method is provided that utilizes the cyclic adsorption and desorption of accumulated helium on a non-porous metallic surface. The method provides reliable leak detection at superfluid helium temperatures. The zero drift that is associated with residual gas analyzers in common leak detectors is virtually eliminated by utilizing a time integration technique. The sensitivity of the apparatus of this disclosure is capable of detecting leaks as small as 1 [times] 10[sup [minus]18] atm cc sec[sup [minus]1]. 2 figs.

Myneni, G.R.

1994-09-06T23:59:59.000Z

296

Colorimetric detection of uranium in water  

DOE Patents [OSTI]

Disclosed are methods, materials and systems that can be used to determine qualitatively or quantitatively the level of uranium contamination in water samples. Beneficially, disclosed systems are relatively simple and cost-effective. For example, disclosed systems can be utilized by consumers having little or no training in chemical analysis techniques. Methods generally include a concentration step and a complexation step. Uranium concentration can be carried out according to an extraction chromatographic process and complexation can chemically bind uranium with a detectable substance such that the formed substance is visually detectable. Methods can detect uranium contamination down to levels even below the MCL as established by the EPA.

DeVol, Timothy A. (Clemson, SC); Hixon, Amy E. (Piedmont, SC); DiPrete, David P. (Evans, GA)

2012-03-13T23:59:59.000Z

297

Thermal wake/vessel detection technique  

DOE Patents [OSTI]

A computer-automated method for detecting a vessel in water based on an image of a portion of Earth includes generating a thermal anomaly mask. The thermal anomaly mask flags each pixel of the image initially deemed to be a wake pixel based on a comparison of a thermal value of each pixel against other thermal values of other pixels localized about each pixel. Contiguous pixels flagged by the thermal anomaly mask are grouped into pixel clusters. A shape of each of the pixel clusters is analyzed to determine whether each of the pixel clusters represents a possible vessel detection event. The possible vessel detection events are represented visually within the image.

Roskovensky, John K. (Albuquerque, NM); Nandy, Prabal (Albuquerque, NM); Post, Brian N (Albuquerque, NM)

2012-01-10T23:59:59.000Z

298

Statistics of Single-Molecule Detection  

Science Journals Connector (OSTI)

Statistics of Single-Molecule Detection ... K(ti+1,ti,r?i+1,r?i) is the probability that no photon is detected and no photobleaching happens between ti and ti+1, if the molecule was at position r?i at time ti and at position r?i+1 at time ti+1 and ?tVf(r?) and ?tVbl(r?) are the probabilities to detect a photon and to photobleach the molecule within time ?t, respectively, if the molecule is at position r?. ... fluorescence without statistical anal. ...

Jörg Enderlein; David L. Robbins; W. Patrick Ambrose; Peter M. Goodwin; Richard A. Keller

1997-05-01T23:59:59.000Z

299

Online Vehicle Detection For Estimating Traffic Status  

E-Print Network [OSTI]

We propose a traffic congestion estimation system based on unsupervised on-line learning algorithm. The system does not rely on background extraction or motion detection. It extracts local features inside detection regions of variable size which are drawn on lanes in advance. The extracted features are then clustered into two classes using K-means and Gaussian Mixture Models(GMM). A Bayes classifier is used to detect vehicles according to the previous cluster information which keeps updated whenever system is running by on-line EM algorithm. Experimental result shows that our system can be adapted to various traffic scenes for estimating traffic status.

Lai, Ranch Y Q

2011-01-01T23:59:59.000Z

300

Automated macromolecular crystal detection system and method  

DOE Patents [OSTI]

An automated macromolecular method and system for detecting crystals in two-dimensional images, such as light microscopy images obtained from an array of crystallization screens. Edges are detected from the images by identifying local maxima of a phase congruency-based function associated with each image. The detected edges are segmented into discrete line segments, which are subsequently geometrically evaluated with respect to each other to identify any crystal-like qualities such as, for example, parallel lines, facing each other, similarity in length, and relative proximity. And from the evaluation a determination is made as to whether crystals are present in each image.

Christian, Allen T. (Tracy, CA); Segelke, Brent (San Ramon, CA); Rupp, Bernard (Livermore, CA); Toppani, Dominique (Fontainebleau, FR)

2007-06-05T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

Sensor for detecting changes in magnetic fields  

DOE Patents [OSTI]

A sensor is described for detecting changes in the magnetic field of the equilibrium-field coil of a Tokamak plasma device that comprises a pair of bifilar wires disposed circumferentially, one inside and one outside the equilibrium-field coil. Each is shorted at one end. The difference between the voltages detected at the other ends of the bifilar wires provides a measure of changing flux in the equilibrium-field coil. This difference can be used to detect faults in the coil in time to take action to protect the coil.

Praeg, W.F.

1980-02-26T23:59:59.000Z

302

Methods for radiation detection and characterization using a multiple detector probe  

DOE Patents [OSTI]

Apparatuses, methods, and systems relating to radiological characterization of environments are disclosed. Multi-detector probes with a plurality of detectors in a common housing may be used to substantially concurrently detect a plurality of different radiation activities and types. Multiple multi-detector probes may be used in a down-hole environment to substantially concurrently detect radioactive activity and contents of a buried waste container. Software may process, analyze, and integrate the data from the different multi-detector probes and the different detector types therein to provide source location and integrated analysis as to the source types and activity in the measured environment. Further, the integrated data may be used to compensate for differential density effects and the effects of radiation shielding materials within the volume being measured.

Akers, Douglas William; Roybal, Lyle Gene

2014-11-04T23:59:59.000Z

303

activity | OpenEI  

Open Energy Info (EERE)

activity activity Dataset Summary Description The Weekly Financial and Activity report section includes the Department of Energy's weekly report on spending and major actions related to the Recovery Act. The "Weekly Update" tab includes listing of total appropriations, total obligations, and total disbursements for each Treasury Account. The "Major Activities" tab lists of the major actions taken to date and major planned actions of likely interest to senior government officials, Congress, and the public. File is in .xls format. Source DOE Date Released November 19th, 2010 (4 years ago) Date Updated Unknown Keywords activity DOE financial Recovery Act report Data application/vnd.ms-excel icon DOE_Weekly_Financial_and_Activity_Report_20101119.xls (xls, 1.8 MiB)

304

General Properties of Fermi/LAT Active Galactic Nuclei  

E-Print Network [OSTI]

The Second Catalog of Blazars and other Active Galactic Nuclei detected by the Fermi/LAT (2LAC) includes about 1100 sources, 886 of which comprise the Clean Sample. The general properties of the different populations of sources classified according to the strength of their emission lines (FSRQs, BL Lacs) or the estimated position of the synchrotron peak are reviewed.

Lott, B; Cutini, S; Gasparrini, D; Dermer, C D

2012-01-01T23:59:59.000Z

305

Early Detection Saves Lives | Department of Energy  

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

Low-dose image scanner In 2000, the WHPP added low-dose CT scanning for early lung cancer detection to the medical screening on a pilot basis at a limited number of DOE sites,...

306

Chemical vapor detection using nanomechanical platform  

Science Journals Connector (OSTI)

For high sensitive and multiplexed chemical analysis, an opto-mechanical detection platform has been built. To check the performance of the platform, we performed water vapor response measurements for ... sensors...

S. H. Lim

2007-11-01T23:59:59.000Z

307

Nanofluidic biosensing for beta-amyloid detection  

E-Print Network [OSTI]

the feasibility of the SERS nanofluidic device as a platform for the detection of multiple analytes. The results showed that strong SERS signals were obtained from the nanoparticle clusters at the nanochannel entrance. Once the feasibility of the approach...

Chou, I-Hsien

2009-05-15T23:59:59.000Z

308

Community Detection from Location-Tagged Networks  

E-Print Network [OSTI]

Many real world systems or web services can be represented as a network such as social networks and transportation networks. In the past decade, many algorithms have been developed to detect the communities in a network using connections between nodes. However in many real world networks, the locations of nodes have great influence on the community structure. For example, in a social network, more connections are established between geographically proximate users. The impact of locations on community has not been fully investigated by the research literature. In this paper, we propose a community detection method which takes locations of nodes into consideration. The goal is to detect communities with both geographic proximity and network closeness. We analyze the distribution of the distances between connected and unconnected nodes to measure the influence of location on the network structure on two real location-tagged social networks. We propose a method to determine if a location-based community detection...

Liu, Zhi

2015-01-01T23:59:59.000Z

309

Electrochemical Detection for Paper-Based Microfluidics  

Science Journals Connector (OSTI)

We report the first demonstration of electrochemical detection for paper-based microfluidic devices. Photolithography was used to make microfluidic channels on filter paper, and screen-printing technology was used to fabricate electrodes on the paper-...

Wijitar Dungchai; Orawon Chailapakul; Charles S. Henry

2009-06-01T23:59:59.000Z

310

Detecting Topological Phases in Cold Atoms  

E-Print Network [OSTI]

Chern insulators are band insulators which exhibit a gap in the bulk and gapless excitations in the edge. Detection of Chern insulators is a serious challenge in cold atoms since the Hall transport measurements are technically ...

Liu, Xiong-Jun

311

Tornado Detection Based on Seismic Signal  

Science Journals Connector (OSTI)

At the present time the only generally accepted method for detecting when a tornado is on the ground is human observation. Based on theoretical considerations combined with eyewitness testimony, there is strong reason to believe that a tornado in ...

Frank B. Tatom; Kevin R. Knupp; Stanley J. Vitton

1995-02-01T23:59:59.000Z

312

Detection of arcs in automotive electrical systems  

E-Print Network [OSTI]

At the present time, there is no established method for the detection of DC electric arcing. This is a concern for forthcoming advanced automotive electrical systems which consist of higher DC electric power bus voltages, ...

Mishrikey, Matthew David

2005-01-01T23:59:59.000Z

313

Ethylene detection in fruit supply chains  

Science Journals Connector (OSTI)

...Steffen Janssen and Walter Lang Ethylene detection in fruit supply chains S...and advanced warehouse management . Ethylene is a gaseous ripening phytohormone of fruits and plants. Presently, ethylene is primarily measured with stationary...

2014-01-01T23:59:59.000Z

314

Intrusion detection in mobile ad hoc networks  

E-Print Network [OSTI]

Most existent protocols, applications and services for Mobile Ad Hoc NET-works (MANETs) assume a cooperative and friendly network environment and do not accommodate security. Therefore, Intrusion Detection Systems (IDSs), serving as the second line...

Sun, Bo

2005-08-29T23:59:59.000Z

315

Electrochemical detection of leukemia oncogenes using enzyme...  

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

solution. The effect of DP and HRP loading of the CNT-based labels on its signal-to-noise ratio of electrochemical detection was studied systematically for the first time....

316

Electromagnetic Detection of a Perfect Invisibility Cloak  

E-Print Network [OSTI]

A perfect invisibility cloak is commonly believed to be undetectable from electromagnetic (EM) detection because it is equivalent to a curved but empty EM space created from coordinate transformation. Based on the intrinsic ...

Zhang, Baile

317

Quantitative spectroscopy for detection of cervical dysplasia  

E-Print Network [OSTI]

The current clinical standard for cervical cancer diagnosis is colposcopy, a procedure that involves visual inspection and biopsy of at-risk tissue, followed by histopathology. The major objective of colposcopy is detection ...

Mirkovi?, Jelena, Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

318

Active Terahertz Metamaterial Devices  

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

Active Terahertz Metamaterial Devices Active Terahertz Metamaterial Devices Active Terahertz Metamaterial Devices Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Available for thumbnail of Feynman Center (505) 665-9090 Email Active Terahertz Metamaterial Devices Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Each element within an array of metamaterial (MM) elements comprises multiple loops and at least one gap. The MM elements may comprise resonators with conductive loops and insulated gaps, or the inverse in which insulated loops are present with conductive gaps; each providing useful transmissive control properties. The metamaterial elements are fabricated on a semiconducting substrate configured with a

319

Exploring Hydroelectricity (9 activities)  

Broader source: Energy.gov [DOE]

Integrated and inquiry-based activities that provide a comprehensive understanding of the scientific, economic, environmental, technological, and societal aspects of hydropower to secondary students

320

WINDExchange: Deployment Activities  

Wind Powering America (EERE)

Development Siting Deployment Activities Recent years have seen major growth in wind energy, and deployment projections indicate this trend will continue for all parts of the...

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


321

Active stewardship: sustainable future  

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

stewardship: sustainable future Active stewardship: sustainable future Energy sustainability is a daunting task: How do we develop top-notch innovations with some of the...

322

Alabama Power- UESC Activities  

Broader source: Energy.gov [DOE]

Presentation—given at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting—discusses Alabama Power and its utility energy service contract (UESC) projects and activities.

323

Wireless sensor for detecting explosive material  

SciTech Connect (OSTI)

Disclosed is a sensor for detecting explosive devices. The sensor includes a ferromagnetic metal and a molecular recognition reagent coupled to the ferromagnetic metal. The molecular recognition reagent is operable to expand upon absorption of vapor from an explosive material such that the molecular recognition reagent changes a tensile stress upon the ferromagnetic metal. The explosive device is detected based on changes in the magnetic switching characteristics of the ferromagnetic metal caused by the tensile stress.

Lamberti, Vincent E; Howell, Jr., Layton N; Mee, David K; Sepaniak, Michael J

2014-10-28T23:59:59.000Z

324

Cyber Security Audit and Attack Detection Toolkit  

SciTech Connect (OSTI)

This goal of this project was to develop cyber security audit and attack detection tools for industrial control systems (ICS). Digital Bond developed and released a tool named Bandolier that audits ICS components commonly used in the energy sector against an optimal security configuration. The Portaledge Project developed a capability for the PI Historian, the most widely used Historian in the energy sector, to aggregate security events and detect cyber attacks.

Peterson, Dale

2012-05-31T23:59:59.000Z

325

Optical Detection in Ultrafast Short Wavelength Science  

SciTech Connect (OSTI)

A new approach to coherent detection of ionising radiation is briefly motivated and recounted. The approach involves optical scattering of coherent light fields by colour centres in transparent solids. It has significant potential for diffractive imaging applications that require high detection dynamic range from pulsed high brilliance short wavelength sources. It also motivates new incarnations of Bragg's X-ray microscope for pump-probe studies of ultrafast molecular structure-dynamics.

Fullagar, Wilfred K.; Hall, Chris J. [School of Physics, Monash University, Victoria 3800 (Australia); Monash Centre for Synchrotron Science, Monash University, Victoria 3800 (Australia); Centre of Excellence for Coherent X-ray Science, School of Physics, University of Melbourne, Victoria, 3010 (Australia)

2010-06-23T23:59:59.000Z

326

Single Molecule Detection of Nanomechanical Motion  

Science Journals Connector (OSTI)

We investigate theoretically how single molecule spectroscopy techniques can be used to perform fast and high resolution displacement detection and manipulation of nanomechanical oscillators, such as singly clamped carbon nanotubes. We analyze the possibility of real time displacement detection by the luminescence signal and of displacement fluctuations by the degree of second order coherence. Estimates of the electromechanical coupling constant indicate that intriguing regimes of strong backaction between the two-level system of a molecule and the oscillator can be realized.

Vadim Puller; Brahim Lounis; Fabio Pistolesi

2013-03-19T23:59:59.000Z

327

Direct Screening of Urine for MDMA and MDA by Liquid Chromatography-Tandem Mass Spectrometry  

Science Journals Connector (OSTI)

......Anglim, and C.J.Least,Jr. Improved determination...Rittner, F. Pragst, W.-R. Bork, and J. Neumann...1995). 16. H. Zhao, R. Brenneisen,A. Scholer, A.J.McNally, M.A. ElSohly, T.R Murphy, and S.J.Salamone......

Helena K. Nordgren; Olof Beck

328

Fission signal detection using helium-4 gas fast neutron scintillation detectors  

SciTech Connect (OSTI)

We demonstrate the unambiguous detection of the fission neutron signal produced in natural uranium during active neutron interrogation using a deuterium-deuterium fusion neutron generator and a high pressure {sup 4}He gas fast neutron scintillation detector. The energy deposition by individual neutrons is quantified, and energy discrimination is used to differentiate the induced fission neutrons from the mono-energetic interrogation neutrons. The detector can discriminate between different incident neutron energies using pulse height discrimination of the slow scintillation component of the elastic scattering interaction between a neutron and the {sup 4}He atom. Energy histograms resulting from this data show the buildup of a detected fission neutron signal at higher energies. The detector is shown here to detect a unique fission neutron signal from a natural uranium sample during active interrogation with a (d, d) neutron generator. This signal path has a direct application to the detection of shielded nuclear material in cargo and air containers. It allows for continuous interrogation and detection while greatly minimizing the potential for false alarms.

Lewis, J. M., E-mail: lewisj@ufl.edu; Kelley, R. P.; Jordan, K. A. [Nuclear Engineering Program, University of Florida, Gainesville, Florida 32611 (United States); Murer, D. [Arktis Radiation Detectors Ltd., 8045 Zurich (Switzerland)

2014-07-07T23:59:59.000Z

329

Acoustic resonance for nonmetallic mine detection  

SciTech Connect (OSTI)

The feasibility of acoustic resonance for detection of plastic mines was investigated by researchers at the Oak Ridge National Laboratory`s Instrumentation and Controls Division under an internally funded program. The data reported in this paper suggest that acoustic resonance is not a practical method for mine detection. Representative small plastic anti-personnel mines were tested, and were found to not exhibit detectable acoustic resonances. Also, non-metal objects known to have strong acoustic resonances were tested with a variety of excitation techniques, and no practical non-contact method of exciting a consistently detectable resonance in a buried object was discovered. Some of the experimental data developed in this work may be useful to other researchers seeking a method to detect buried plastic mines. A number of excitation methods and their pitfalls are discussed. Excitation methods that were investigated include swept acoustic, chopped acoustic, wavelet acoustic, and mechanical shaking. Under very contrived conditions, a weak response that could be attributed to acoustic resonance was observed, but it does not appear to be practical as a mine detection feature. Transfer properties of soil were investigated. Impulse responses of several representative plastic mines were investigated. Acoustic leakage coupling, and its implications as a disruptive mechanism were investigated.

Kercel, S.W.

1998-04-01T23:59:59.000Z

330

Detection of Chemical Weapon Agents and Simulants Using Chemical Ionization Reaction Time-of-Flight Mass Spectrometry  

Science Journals Connector (OSTI)

Detection of Chemical Weapon Agents and Simulants Using Chemical Ionization Reaction Time-of-Flight Mass Spectrometry ... Chemical weapons were first used on a large scale in warfare in World War 1, where chlorine and sulfur mustard were used extensively. ... Many analytical methods have been developed for the detection of the active chemical constituents of chemical weapons, chemical weapon agents (CWAs), and their breakdown products in soil,5-9 groundwater,10,11 and air. ...

Rebecca L. Cordell; Kerry A. Willis; Kevin P. Wyche; Robert S. Blake; Andrew M. Ellis; Paul S. Monks

2007-09-26T23:59:59.000Z

331

Anticancer activity of peach and plum extracts against human breast cancer in vitro and in vivo  

E-Print Network [OSTI]

less effective than RL extracts, showed greater effects on MDA-MB-435 cells compared to the other cell lines. Fractionation of RL extracts into different groups of phenolic compounds allowed the identification of a fraction of phenolic acids (F1...

Noratto Dongo, Giuliana Doris

2009-05-15T23:59:59.000Z

332

Aging assessment for active fire protection systems  

SciTech Connect (OSTI)

This study assessed the impact of aging on the performance and reliability of active fire protection systems including both fixed fire suppression and fixed fire detection systems. The experience base shows that most nuclear power plants have an aggressive maintenance and testing program and are finding degraded fire protection system components before a failure occurs. Also, from the data reviewed it is clear that the risk impact of fire protection system aging is low. However, it is assumed that a more aggressive maintenance and testing program involving preventive diagnostics may reduce the risk impact even further.

Ross, S.B. [Science and Engineering Associates, Inc. (United States); Nowlen, S.P.; Tanaka, T. [Sandia National Labs., Albuquerque, NM (United States)

1995-06-01T23:59:59.000Z

333

Activating optomechanical entanglement  

E-Print Network [OSTI]

We propose an optomechanical setup where the activation of entanglement through the pre-availability of non-classical correlations can be demonstrated experimentally. We analyse the conditions under which the scheme is successful and relate them to the current experimental state of the art. The successful activation of entanglement embodies an interesting alternative to current settings for the revelation of fully mechanical nonclassicality.

Laura Mazzola; Mauro Paternostro

2011-12-20T23:59:59.000Z

334

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

335

Some Possible Methods for Detection of Clandestin Production of Nuclear Materials  

SciTech Connect (OSTI)

When one considers the possibility of clandestine production of nuclear materials, one must consider the nature of the state. A Nuclear Weapon State (NWS) already has production facilities, and even though these might be safeguarded, the NWS could more easily hide the activities than could a Non-Nuclear Weapon State (NNWS). In this paper, some of the properties of production facilities are discussed in relation to how this would relate to vulnerability to detection. The observable and methods of detection are discussed, as well as the possibility that significant help by another country could totally eliminate one or more of the steps needed for a complete production cycle.

Marlow, Keith W.

1999-06-09T23:59:59.000Z

336

MOSFETEMBEDDED MICROCANTILEVER SIGNAL TRANSDUCTION PLATFORM FOR BIOCHEMICAL DETECTION AND DIAGNOSIS  

E-Print Network [OSTI]

MOSFETEMBEDDED MICROCANTILEVER SIGNAL TRANSDUCTION PLATFORM FOR BIOCHEMICAL DETECTION for reliable biological and chemical detection techniques that can provide enhanced sensitivity platform that provides labelfree detection of molecular interactions in real time. Demonstrations

Shull, Kenneth R.

337

New Proposal for the Detection of Concealed Weapons: Electromagnetic Weapon Detection for Open Areas.  

E-Print Network [OSTI]

??Terrorist groups, hijackers, and people hiding guns and knifes are a constant and increasing threat Concealed weapon detection (CWO) has turned into one of the… (more)

Agurto Goya, Alan

2009-01-01T23:59:59.000Z

338

Assurance-oriented activity recognition  

Science Journals Connector (OSTI)

Activity recognition (AR) research promises to enable a multitude of human-centric applications in smart environments. Nevertheless, application developers will require assurance mechanisms before they can confidently use and apply AR in real-world pervasive ... Keywords: activity assurance, activity effect, activity effect knowledge base, activity recognition, activity verification, recognition assurances, situation

Eunju Kim; Sumi Helal; Chris Nugent; Jae Woong Lee

2011-09-01T23:59:59.000Z

339

Bioanalytical characterisation of multiple endocrine-and dioxin-like activities in1 sediments from reference and impacted small rivers2  

E-Print Network [OSTI]

1 Bioanalytical characterisation of multiple endocrine- and dioxin-like activities in1 sediments-mediated22 activities, namely estrogen (ER), androgen (AR), dioxin (AhR) and pregnane X (PXR)23 receptors dioxin-like29 activities. Interestingly, high PXR and (anti)AR activities were detected; however

Paris-Sud XI, Université de

340

Protective materials with real-time puncture detection capability  

SciTech Connect (OSTI)

The protection of workers from chemical, biological, or radiological hazards requires the use of protective materials that can maintain their integrity during use. An accidental puncture in the protective material can result in a significant exposure to the worker. A five ply material has been developed that incorporates two layers of an electrically conductive polymer sandwiched between three layers of a nonconductive polymer. A normally open circuit that is connected between the conductive layers will be closed by puncturing the material with either a conductive or nonconductive object. This can be used to activate an audible alarm or visual beacon to warn the worker of a breach in the integrity of the material. The worker is not connected to the circuit, and the puncture can be detected in real-time, even when caused by a nonconductor.

Hermes, R.E.; Stampfer, J.F. [Los Alamos National Lab., NM (United States); Valdez-Boyle, L.S. [New Mexico Univ., Albuquerque, NM (United States). School of Medicine; Ramsey, D.R. [Paradigm Systems Corp, 1018 100th Place N.E., Bellevue, WA (United States)

1996-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

Acoustic detection and long-term monitoring of pygmy blue whales over the continental slope in southwest Australia  

Science Journals Connector (OSTI)

A 9-yr dataset of continuous sea noise recording made at the Cape Leeuwin station of the Comprehensive Nuclear-Test-Ban Treaty hydroacoustic network in 2002–2010 was processed to detect calls from pygmy blue whales and to analyze diel seasonal and interannual variations in their vocal activity. Because the conventional spectrogram correlation method for recognizing whale calls in sea noise resulted in a too high false detection rate alternative algorithms were tested and the most robust one applied to the multi-year dataset. The detection method was based on multivariate classification using two spectrogram features of transients in sea noise and Fisher's linear discriminant which provided a misclassification rate of approximately 1% for missed and false detections at moderate sensitivity settings. An analysis of the detection results revealed a consistent seasonal pattern in the whale presence and considerable interannual changes with a steady increase in the number of calls detected in 2002–2006. An apparent diel pattern of whales' vocal activity was also observed. The acoustic detection range for pygmy blue whales was estimated to vary from about 50?km to nearly 200?km from the Cape Leeuwin station depending on the ambient noise level source level and azimuth to a vocalizing whale.

Alexander N. Gavrilov; Robert D. McCauley

2013-01-01T23:59:59.000Z

342

Defect Prevention and Detection in Software for Automated Test Equipment  

SciTech Connect (OSTI)

Software for automated test equipment can be tedious and monotonous making it just as error-prone as other software. Active defect prevention and detection are also important for test applications. Incomplete or unclear requirements, a cryptic syntax used for some test applications—especially script-based test sets, variability in syntax or structure, and changing requirements are among the problems encountered in one tester. Such problems are common to all software but can be particularly problematic in test equipment software intended to test another product. Each of these issues increases the probability of error injection during test application development. This report describes a test application development tool designed to address these issues and others for a particular piece of test equipment. By addressing these problems in the development environment, the tool has powerful built-in defect prevention and detection capabilities. Regular expressions are widely used in the development tool as a means of formally defining test equipment requirements for the test application and verifying conformance to those requirements. A novel means of using regular expressions to perform range checking was developed. A reduction in rework and increased productivity are the results. These capabilities are described along with lessons learned and their applicability to other test equipment software. The test application development tool, or “application builder”, is known as the PT3800 AM Creation, Revision and Archiving Tool (PACRAT).

E. Bean

2006-11-30T23:59:59.000Z

343

Falling stars: Acoustic influences on meteor detection  

Science Journals Connector (OSTI)

As particles enter the earth's atmosphere they produce a burst of electromagnetic energy including visible and radio-wave emissions. Consequently just as meteors can be detected visually in the night sky they can be heard using radio telescopes. The current project investigated the potential influence of these audio signals on meteor detection. Anecdotally and in related research it has been found that auditory signals can enhance or even alter visual perception of objects. The current project examined the specific effects of accompanying auditory signals on the detection of meteors. Meteors present an interesting case of audiovisual integration in that detection paradigms often entail extended vigilance and extremely brief yet brilliant astronomical events. Experiments specifically investigated how auditory signals that varied in spectra influenced changes in visual magnitude and duration judgments of meteors. In addition research targeted how extraneous auditory cues during a vigilant meteor search might contribute to false judgments. Results are described in terms of audiovisual integration and the relation of perceptual mechanisms to meteor detection.

Darlene Edewaard

2013-01-01T23:59:59.000Z

344

Falling stars: Acoustic influences on meteor detection  

Science Journals Connector (OSTI)

As particles enter the earth’s atmosphere they produce a burst of electromagnetic energy including visible and radio-wave emissions. Consequently just as meteors can be detected visually in the night sky they can be “heard” using radio telescopes. The current project investigated the potential influence of these audio signals on meteor detection. Anecdotally and in related research it has been found that auditory signals can enhance or even alter visual perception of objects. The current project examined the specific effects of accompanying auditory signals on the detection of meteors. Meteors present an interesting case of audiovisual integration in that detection paradigms often entail extended vigilance and extremely brief yet brilliant astronomical events. Experiments specifically investigated how auditory signals that varied in spectra influenced changes in visual magnitude and duration judgments of meteors. In addition research targeted how extraneous auditory cues during a vigilant meteor search might contribute to false judgments. Results are described in terms of audiovisual integration and the relation of perceptual mechanisms to meteor detection.

2013-01-01T23:59:59.000Z

345

Detection Rates for Close Binaries Via Microlensing  

E-Print Network [OSTI]

Microlensing is one of the most promising methods of reconstructing the stellar mass function down to masses even below the hydrogen-burning limit. The fundamental limit to this technique is the presence of unresolved binaries, which can in principle significantly alter the inferred mass function. Here we quantify the fraction of binaries that can be detected using microlensing, considering specifically the mass ratio and separation of the binary. We find that almost all binary systems with separations greater than $b \\sim 0.4$ of their combined Einstein ring radius are detectable assuming a detection threshold of $3\\%$. For two M dwarfs, this corresponds to a limiting separation of $\\gsim 1 \\au$. Since very few observed M dwarfs have companions at separations $\\lsim 1 \\au$, we conclude that close binaries will probably not corrupt the measurements of the mass function. We find that the detectability depends only weakly on the mass ratio. For those events for which individual masses can be determined, we find that binaries can be detected down to $b \\sim 0.2$.

B. Scott Gaudi; Andrew Gould

1996-06-17T23:59:59.000Z

346

A hierarchical approach for online temporal lobe seizure detection in long-term intracranial EEG recordings  

Science Journals Connector (OSTI)

Objective. Around 1% of the world's population is affected by epilepsy, and nearly 25% of patients cannot be treated effectively by available therapies. The presence of closed-loop seizure-triggered stimulation provides a promising solution for these patients. Realization of fast, accurate, and energy-efficient seizure detection is the key to such implants. In this study, we propose a two-stage on-line seizure detection algorithm with low-energy consumption for temporal lobe epilepsy (TLE). Approach. Multi-channel signals are processed through independent component analysis and the most representative independent component (IC) is automatically selected to eliminate artifacts. Seizure-like intracranial electroencephalogram (iEEG) segments are fast detected in the first stage of the proposed method and these seizures are confirmed in the second stage. The conditional activation of the second-stage signal processing reduces the computational effort, and hence energy, since most of the non-seizure events are filtered out in the first stage. Main results. Long-term iEEG recordings of 11 patients who suffered from TLE were analyzed via leave-one-out cross validation. The proposed method has a detection accuracy of 95.24%, a false alarm rate of 0.09/h, and an average detection delay time of 9.2 s. For the six patients with mesial TLE, a detection accuracy of 100.0%, a false alarm rate of 0.06/h, and an average detection delay time of 4.8 s can be achieved. The hierarchical approach provides a 90% energy reduction, yielding effective and energy-efficient implementation for real-time epileptic seizure detection. Significance. An on-line seizure detection method that can be applied to monitor continuous iEEG signals of patients who suffered from TLE was developed. An IC selection strategy to automatically determine the most seizure-related IC for seizure detection was also proposed. The system has advantages of (1) high detection accuracy, (2) low false alarm, (3) short detection latency, and (4) energy-efficient design for hardware implementation.

Sheng-Fu Liang; Yi-Chun Chen; Yu-Lin Wang; Pin-Tzu Chen; Chia-Hsiang Yang; Herming Chiueh

2013-01-01T23:59:59.000Z

347

Ultrasensitive Voltammetric Detection of Trace Heavy Metal Ions...  

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

Voltammetric Detection of Trace Heavy Metal Ions Using Carbon Nanotube Nanoelectrode Array. Ultrasensitive Voltammetric Detection of Trace Heavy Metal Ions Using Carbon Nanotube...

348

Electrochemical Sensors for the Detection of Lead and Other Toxic...  

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

Sensors for the Detection of Lead and Other Toxic Heavy Metals: The Next Generation of Personal Exposure Electrochemical Sensors for the Detection of Lead and Other Toxic Heavy...

349

A graphene-based electrochemical sensor for sensitive detection...  

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

graphene-based electrochemical sensor for sensitive detection of paracetamol . A graphene-based electrochemical sensor for sensitive detection of paracetamol . Abstract: An...

350

Nuclear Detection and Forensics | Y-12 National Security Complex  

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

Nuclear Detection and ... Nuclear Detection and Forensics We have a firm foundation to support the science and technology needed for the important, growing areas of nuclear...

351

Enzyme-free Detection of Hydrogen Peroxide from Cerium Oxide...  

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

free Detection of Hydrogen Peroxide from Cerium Oxide Nanoparticles Immobilized on Poly(4-vinylpyridine) Self-Assembled Enzyme-free Detection of Hydrogen Peroxide from Cerium Oxide...

352

Record-setting Antimatter Particle Detected with NERSC Help  

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

Heaviest Antimatter Particle Detected with NERSC Help Heaviest Antimatter Particle Detected with NERSC Help Antihelium-4 Likely to Hold Title for Years to Come April 24, 2011 |...

353

EECBG Success Story: Energy Detectives Help Pennsylvania Town...  

Energy Savers [EERE]

Energy Detectives Help Pennsylvania Town Reduce Costs EECBG Success Story: Energy Detectives Help Pennsylvania Town Reduce Costs July 23, 2010 - 3:24pm Addthis Judith Mondre meets...

354

Method for FractMethod for Fracture Detection Using Multicomponent...  

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

Method for FractMethod for Fracture Detection Using Multicomponent Seismic Dataure Detection Using Multicomponent Seismic Data Dr. Bryan DeVault Department of Geophysics Colorado...

355

Accurate Detection of Impurities in Hydrogen Fuel at Lower Cost...  

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

Accurate Detection of Impurities in Hydrogen Fuel at Lower Cost Technology available for licensing: Two alternative strategies for detecting impurities in the hydrogen used in fuel...

356

Oxygen detected in atmosphere of Saturn's moon Dione  

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

Oxygen detected in atmosphere of Saturn's moon Dione Oxygen detected in atmosphere of Saturn's moon Dione Scientists and an international research team have announced discovery of...

357

SciTech Connect: Sequential Threat Detection for Harbor Defense...  

Office of Scientific and Technical Information (OSTI)

Sequential Threat Detection for Harbor Defense: An X-ray Physics-Based Bayesian Approach Citation Details In-Document Search Title: Sequential Threat Detection for Harbor Defense:...

358

Cyber Security Audit and Attack Detection Toolkit: Bandolier...  

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

Cyber Security Audit and Attack Detection Toolkit: Bandolier and Portaledge, March 2010 Cyber Security Audit and Attack Detection Toolkit: Bandolier and Portaledge, March 2010 This...

359

Active Cores in Deep Fields  

E-Print Network [OSTI]

Deep field observations are an essential tool to probe the cosmological evolution of galaxies. In this context, X-ray deep fields provide information about some of the most energetic cosmological objects: active galactic nuclei (AGN). Astronomers are interested in detecting sufficient numbers of AGN to probe the accretion history at high redshift. This talk gives an overview of the knowledge resulting from a highly complete soft X-ray selected sample collected with ROSAT, XMM-Newton and Chandra deep fields. The principal outcome based on X-ray luminosity functions and space density evolution studies is that low-luminosity AGN evolve in a dramatically different way from high-luminosity AGN: The most luminous quasars perform at significantly earlier cosmic times and are most numerous in a unit volume at cosmological redshift z~2. In contrast, low-luminosity AGN evolve later and their space density peaks at z~0.7. This finding is also interpreted as an anti-hierarchical growth of supermassive black holes in the Universe. Comparing this with star formation rate history studies one concludes that supermassive black holes enter the cosmic stage before the bulk of the first stars. Therefore, first solutions of the so-called hen-egg problem are suggested. Finally, status developments and expectations of ongoing and future extended observations such as the XMM-COSMOS project are highlighted.

G. Hasinger; A. Mueller

2005-10-14T23:59:59.000Z

360

DISCLOSURE OF LOBBYING ACTIVITIES  

Gasoline and Diesel Fuel Update (EIA)

OF LOBBYING ACTIVITIES OF LOBBYING ACTIVITIES Approved by OMB Complete this form to disclose lobbying activities pursuant to 31 U.S.C. 1352 0348-0046 (See reverse for public burden disclosure.) 1. Type of Federal Action: 2. Status of Federal Action: 3. Report Type: a. contract a. bid/offer/application a. initial filing b. grant b. initial award b. material change c. cooperative agreement c. post-award For Material Change Only: d. loan year _________ quarter _________ e. loan guarantee date of last report ______________ f. loan insurance 4. Name and Address of Reporting Entity: 5. If Reporting Entity in No. 4 is a Subawardee, Enter Name

Note: This page contains sample records for the topic "detectable activity mda" 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

Characterization of the cellulolytic activity of a bacillus isolate  

SciTech Connect (OSTI)

A group I Bacillus strain, DLG, was isolated and characterized as being most closely related to Bacillus subtilis. When grown on any of a variety of sugars, the culture supernatant of this isolate was found to process cellulolytic activity, as demonstrated by degradation of trinitrophenyl-carboxymethyl cellulose. Growth in medium containing cellobiose or glucose resulted in the greatest production of cellulolytic activity. The cellulolytic activity was not produced until the stationary phase of growth, and the addition of glucose or cellobiose to a culture in this phase had no apparent effect on enzyme production. Fractionation of the culture supernatant showed that the molecular weight of the enzymatic activity was less than 100,000. Maximum cellulolytic activity in assays was observed at pH 4.8 and at 58 degrees C, although maximum thermal stability of the activity was observed only up to 45 to 50 degrees C. Neither glucose nor cellobiose inhibited enzymatic activity. Kinetic experiments suggested that more than one enzyme was acting upon trinitrophenyl-carboxymethyl cellulose. Exocellular protein produced by this Bacillus isolate showed roughly one-fifth the cellulolytic activity displayed by Trichoderma reesei C30 on noncrystalline cellulosic substrates. In contrast to T. reesei cellulase, the Bacillus enzymatic activity showed no ability to degrade crystalline forms of cellulose, nor was cellobiase activity detectable. 32 references.

Robson, L.M.; Chambliss, G.H.

1984-05-01T23:59:59.000Z

362

Cocaine-induced brain activation detected by dynamic manganese-enhanced magnetic resonance imaging (MEMRI)  

Science Journals Connector (OSTI)

...Kong Q Sun S Liu Ch Huang J Xu H ( 2005 ) Internet J Neurol 4 . 36 Lin YJ ( 1997 ) PhD thesis ( Carnegie Mellon University...J. Ross (National Institute on Drug Abuse) and A. C. Silva (National Institutes...Program of the National Institute on Drug Abuse, National Institutes of...

Hanbing Lu; Zheng-Xiong Xi; Leah Gitajn; William Rea; Yihong Yang; Elliot A. Stein

2007-01-01T23:59:59.000Z

363

An active system for the detection of special fissile material in small watercraft  

E-Print Network [OSTI]

technique. The MCNP Monte Carlo transport code was used to simulate the use of a pulsed neutron generator to induce fission in the fissile material and then estimate the detector response. The detector modeled was based on elastic scattering-induced recoil...

Johansen, Norman Alfan, III

2006-10-30T23:59:59.000Z

364

Rapid detection of thrombin and other protease activity directly in whole blood  

E-Print Network [OSTI]

Tissue factor and thrombin in sickle cell anemia. Thrombosisactivity in patients with sickle cell trait. Blood Coagul10 . One known symptom of sickle cell anemia is coagulation

Yu, Johnson Chung Sing

2012-01-01T23:59:59.000Z

365

Rapid detection of thrombin and other protease activity directly in whole blood  

E-Print Network [OSTI]

that about 48 million food poisoning cases occur annually inworldwide is even greater. Food poisoning usually occurs as

Yu, Johnson Chung Sing

2012-01-01T23:59:59.000Z

366

A FULLY AUTOMATIC ALGORITHM FOR CONTOUR DETECTION OF BONES IN HAND RADIOGRAPHS USING ACTIVE CONTOURS  

E-Print Network [OSTI]

employed procedure in pediatric radiology, as many syndromes affecting growth cause a significant dis

367

Building on Clues: Improving Methods to Help Detect and Characterize Terrorist Activity  

E-Print Network [OSTI]

Security Solutions www.ihssnc.org #12;Project Overview · Problem: Limited guidance on how to collect" Responsible for Plots Within the US, 1999-2009 Anti-Abortion Animal Rights Anti-Muslim Right Left Ideology

McShea, Daniel W.

368

Detecting Air Leaks | Department of Energy  

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

Detecting Air Leaks Detecting Air Leaks Detecting Air Leaks September 27, 2012 - 6:39pm Addthis For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. You may already know where some air leakage occurs in your home, such as an under-the-door draft, but you'll need to find the less obvious gaps to properly air seal your home. For a thorough and accurate measurement of air leakage in your home, hire a qualified technician to conduct an energy assessment, particularly a blower door test. A blower door test, which depressurizes a home, can

369

NETL: Fugitive Gas Emissions Detection Facilities  

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

Fugitive Gas Emissions Detection Facilities Fugitive Gas Emissions Detection Facilities NETL uses an array of innovative laboratory techniques and field methods to detect and monitor fugitive emissions of CO2 stored in geologic formations. By providing an accurate accounting of stored CO2 and a high level of confidence that the CO2 will permanently remain in storage, these efforts can help ensure the technical soundness and economic viability of carbon sequestration, a technology that is critical to meeting the national goal of reduced greenhouse gas emissions. Successful research to establish the stability and integrity of host formations will help developers of sequestration projects secure permits and emissions reduction credits, while preventing damage to ecosystems and ensuring public health and safety.

370

Early Detection Saves Lives | Department of Energy  

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

Early Detection Saves Lives Early Detection Saves Lives Early Detection Saves Lives September 20, 2012 - 2:39pm Addthis What does this mean for me? It can save your life. It can save the life of someone you love. The Worker Health Protection Program (WHPP) is the DOE's Former Worker Medical Screening Program at 13 DOE sites. WHPP provides free medical evaluations for selected occupational diseases every three years to eligible former DOE workers under a national medical protocol established by the DOE. WHPP is funded by the DOE and is operated by a consortium of the City University of New York, the United Steelworkers, and the Atomic Trades & Labor Council in association with clinical facilities in communities near DOE sites. The sites covered under WHPP include the K-25 Gaseous Diffusion Plant, Y-12 National Security Complex, Oak Ridge National

371

Disentangling Dark Matter Dynamics with Directional Detection  

SciTech Connect (OSTI)

Inelastic dark matter reconciles the DAMA anomaly with other null direct detection experiments and points to a non-minimal structure in the dark matter sector. In addition to the dominant inelastic interaction, dark matter scattering may have a subdominant elastic component. If these elastic interactions are suppressed at low momentum transfer, they will have similar nuclear recoil spectra to inelastic scattering events. While upcoming direct detection experiments will see strong signals from such models, they may not be able to unambiguously determine the presence of the subdominant elastic scattering from the recoil spectra alone. We show that directional detection experiments can separate elastic and inelastic scattering events and discover the underlying dynamics of dark matter models.

Lisanti, Mariangela; Wacker, Jay G.; /SLAC

2009-12-16T23:59:59.000Z

372

Formation, Habitability, and Detection of Extrasolar Moons  

E-Print Network [OSTI]

The diversity and quantity of moons in the Solar System suggest a manifold population of natural satellites exist around extrasolar planets. Of peculiar interest from an astrobiological perspective, the number of sizable moons in the stellar habitable zones may outnumber planets in these circumstellar regions. With technological and theoretical methods now allowing for the detection of sub-Earth-sized extrasolar planets, the first detection of an extrasolar moon appears feasible. In this review, we summarize formation channels of massive exomoons that are potentially detectable with current or near-future instruments. We discuss the orbital effects that govern exomoon evolution, we present a framework to characterize an exomoon's stellar plus planetary illumination as well as its tidal heating, and we address the techniques that have been proposed to search for exomoons. Most notably, we show that natural satellites in the range of 0.1 - 0.5 Earth mass (i) are potentially habitable, (ii) can form within the c...

Heller, René; Kipping, David; Limbach, Mary Anne; Turner, Edwin; Greenberg, Richard; Sasaki, Takanori; Bolmont, Émeline; Grasset, Olivier; Lewis, Karen; Barnes, Rory; Zuluaga, Jorge I

2014-01-01T23:59:59.000Z

373

A New, Principled Approach to Anomaly Detection  

SciTech Connect (OSTI)

Intrusion detection is often described as having two main approaches: signature-based and anomaly-based. We argue that only unsupervised methods are suitable for detecting anomalies. However, there has been a tendency in the literature to conflate the notion of an anomaly with the notion of a malicious event. As a result, the methods used to discover anomalies have typically been ad hoc, making it nearly impossible to systematically compare between models or regulate the number of alerts. We propose a new, principled approach to anomaly detection that addresses the main shortcomings of ad hoc approaches. We provide both theoretical and cyber-specific examples to demonstrate the benefits of our more principled approach.

Ferragut, Erik M [ORNL; Laska, Jason A [ORNL; Bridges, Robert A [ORNL

2012-01-01T23:59:59.000Z

374

Knocking detection device in diesel engines  

SciTech Connect (OSTI)

This patent describes a device for detection of knocking in a diesel engine which consists of: a pressure detector, having a piezoelectric element, for detecting the rate of change of combustion pressure of the engine; an angle detector for detecting the rotation of the engine; and a knocking detector for receiving the outputs of the pressure detector and the angle detector for deciding whether or not knocking occurs. The knocking detector consists of a rotation rate detector for converting the output of the angle detector to a signal corresponding to the rotation rate of the engine, and a division apparatus for dividing the output of the pressure detector by the output of the rotation rate detector, the decision of an occurrence of knocking occurring when the output of the division device exceeds a predetermined value.

Ootsuka, Y.; Hattori, T.; Ozaki, T.

1986-02-04T23:59:59.000Z

375

Nondestructive Examination (NDE) Detection and Characterization of  

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

Nondestructive Examination (NDE) Detection and Characterization of Nondestructive Examination (NDE) Detection and Characterization of Degradation Precursors Nondestructive Examination (NDE) Detection and Characterization of Degradation Precursors The U.S. Department of Energy's (DOE) Light Water Reactor Sustainability (LWRS) Program is developing the fundamental scientific basis to understand, predict, and measure changes in materials and systems, structure, and components (SSCs) as they age in environments associated with long-term operations (LTO) of operating commercial nuclear power reactors. The push towards safe long-term operations of light-water reactor (LWR) nuclear power plants (NPPs) brings significant challenges because aging of components can limit the operating lifetime of critical systems (Bond 2010; Bond et al. 2011a). A key element of LTO of LWRs is therefore

376

Neuroimaging and neuroenergetics: Brain activations as information-driven reorganization of energy flows  

E-Print Network [OSTI]

Neuroimaging and neuroenergetics: Brain activations as information-driven reorganization of energy 25 January 2010 Keywords: Neuroimaging Neuroenergetics Brain activation Cortical response Deviance detection a b s t r a c t There is increasing focus on the neurophysiological underpinnings of brain

377

VIPR HMM: A hidden Markov model for detecting recombination with microbial detection microarrays  

E-Print Network [OSTI]

to disease outbreaks. H1N1, the influenza virus responsible for the 2009 outbreak of pandemic flu, is thought1 VIPR HMM: A hidden Markov model for detecting recombination with microbial detection microarrays. Results: We have expanded upon our previous implementation of VIPR by incorporating a hidden Markov model

Wang, David

378

National Service Activation Checklist  

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

Service Activation Checklist Service Activation Checklist You have just received information that you are being activated for national service. Covered or Not Covered If you have received notice to report for active duty - Army, Navy, Marines, Air Force, National Guard, Public Health Service, or Coast Guard and you are a Federal employee, you have employment and reemployment rights under the Uniformed Services Employment and Reemployment Act of 1994 (USERRA). Basics - Telling People What is Happening 1. Have you told your spouse, family, best friend, or someone else who is important to you? Point of Contact for Department of Energy Use: Name: Telephone Number: E-mail: 2. Go to Employee Self-Service and make sure your personal information is up to date.

379

The Active Asteroids  

E-Print Network [OSTI]

Some asteroids eject dust, producing transient, comet-like comae and tails; these are the active asteroids. The causes of activity in this newly-identified population are many and varied. They include impact ejection and disruption, rotational instabilities, electrostatic repulsion, radiation pressure sweeping, dehydration stresses and thermal fracture, in addition to the sublimation of asteroidal ice. These processes were either unsuspected or thought to lie beyond the realm of observation before the discovery of asteroid activity. Scientific interest in the active asteroids lies in their promise to open new avenues into the direct study of asteroid destruction, the production of interplanetary debris, the abundance of asteroid ice and the origin of terrestrial planet volatiles.

Jewitt, David; Agarwal, Jessica

2015-01-01T23:59:59.000Z

380

EERE Office Activities  

Broader source: Energy.gov [DOE]

Individual areas within the Office of Energy Efficiency and Renewable Energy (EERE) offer workforce and education activities tailored to the needs of a specific technology or sector. Below is a...

Note: This page contains sample records for the topic "detectable activity mda" 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

Renewable Energy Outreach Activities  

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

be used later otherwise known as fuels. 4. Section 4- covers use of energy. It looks at energy conversions and how to use fewer resources. 5. Time fill activities- games...

382

PRESSURE ACTIVATED SEALANT TECHNOLOGY  

SciTech Connect (OSTI)

The objective of this project is to develop new, efficient, cost effective methods of internally sealing natural gas pipeline leaks through the application of differential pressure activated sealants. In researching the current state of the art for gas pipeline sealing technologies we concluded that if the project was successful, it appeared that pressure activated sealant technology would provide a cost effective alternative to existing pipeline repair technology. From our analysis of current field data for a 13 year period from 1985 to 1997 we were able to identify 205 leaks that were candidates for pressure activated sealant technology, affirming that pressure activated sealant technology is a viable option to traditional external leak repairs. The data collected included types of defects, areas of defects, pipe sizes and materials, incident and operating pressures, ability of pipeline to be pigged and corrosion states. This data, and subsequent analysis, was utilized as a basis for constructing applicable sealant test modeling.

Michael A. Romano

2004-04-01T23:59:59.000Z

383

Neutron activation analysis  

Science Journals Connector (OSTI)

Neutron activation analysis (NAA) is an that relies on the measurement of ?-rays emitted from a sample that was irradiated by neutrons. The rate at which ?-rays are emitted from an element in a sample is dir...

James R. Budahn

1998-01-01T23:59:59.000Z

384

System and method for detecting cells or components thereof  

DOE Patents [OSTI]

A system and method for detecting a detectably labeled cell or component thereof in a sample comprising one or more cells or components thereof, at least one cell or component thereof of which is detectably labeled with at least two detectable labels. In one embodiment, the method comprises: (i) introducing the sample into one or more flow cells of a flow cytometer, (ii) irradiating the sample with one or more light sources that are absorbed by the at least two detectable labels, the absorption of which is to be detected, and (iii) detecting simultaneously the absorption of light by the at least two detectable labels on the detectably labeled cell or component thereof with an array of photomultiplier tubes, which are operably linked to two or more filters that selectively transmit detectable emissions from the at least two detectable labels.

Porter, Marc D. (Ames, IA); Lipert, Robert J. (Ames, IA); Doyle, Robert T. (Ames, IA); Grubisha, Desiree S. (Corona, CA); Rahman, Salma (Ames, IA)

2009-01-06T23:59:59.000Z

385

Detecting financial statement fraud: Three essays on fraud predictors, multi-classifier combination and fraud detection using data mining.  

E-Print Network [OSTI]

??The goal of this dissertation is to improve financial statement fraud detection using a cross-functional research approach. The efficacy of financial statement fraud detection depends… (more)

Perols, Johan L

2008-01-01T23:59:59.000Z

386

Optimal signal recovery for pulsed balanced detection  

Science Journals Connector (OSTI)

We demonstrate a tool for filtering technical and electronic noises from pulses of light, especially relevant for signal processing methods in quantum optics experiments as a means to achieve the shot-noise level and reduce strong technical noise by means of a pattern function. We provide the theory of this pattern-function filtering based on balance detection. Moreover, we implement an experimental demonstration where 10 dB of technical noise is filtered after balance detection. Such filter can readily be used for probing magnetic atomic ensembles in environments with strong technical noise.

Yannick A. de Icaza Astiz; Vito Giovanni Lucivero; R. de J. León-Montiel; Morgan W. Mitchell

2014-09-10T23:59:59.000Z

387

Method and system for detecting an explosive  

DOE Patents [OSTI]

A method and system for detecting at least one explosive in a vehicle using a neutron generator and a plurality of NaI detectors. Spectra read from the detectors is calibrated by performing Gaussian peak fitting to define peak regions, locating a Na peak and an annihilation peak doublet, assigning a predetermined energy level to one peak in the doublet, and predicting a hydrogen peak location based on a location of at least one peak of the doublet. The spectra are gain shifted to a common calibration, summed for respective groups of NaI detectors, and nitrogen detection analysis performed on the summed spectra for each group.

Reber, Edward L. (Idaho Falls, ID); Rohde, Kenneth W. (Idaho Falls, ID); Blackwood, Larry G. (Bozeman, MT)

2010-12-07T23:59:59.000Z

388

Detection of electrophilic and nucleophilic chemical agents  

DOE Patents [OSTI]

A "real time" method for detecting chemical agents generally and particularly electrophilic and nucleophilic species by employing tunable, precursor sensor materials that mimic the physiological interaction of these agents to form highly florescent berberine-type alkaloids that can be easily and rapidly detected. These novel precursor sensor materials can be tuned for reaction with both electrophilic (chemical species, toxins) and nucleophilic (proteins and other biological molecules) species. By bonding or otherwise attaching these precursor molecules to a surface or substrate they can be used in numerous applications.

McElhanon, James R.; Shepodd, Timothy J.

2014-08-12T23:59:59.000Z

389

Detection of Thielaviopsis basicola by serological methods  

E-Print Network [OSTI]

. One protein with a molecular wt of 230, 000 daltons reacted with rabbit anti-fungus sera. Antibodies against T. basi cola did not cross ? react with other soil borne fungi. Mycelium, endoconidia, and chlamydospore walls of T. basicola reacted... fixing, a NaCl rinse and an incubation period of 1 1/2 hr. Proteins from T. basi cola were detected by antibodies using ELISA techniques. The entire protein (31. 25 ug/ml) from T. basi coia were detected by antibodies diluted 1:1280. Alkaline...

Aye, Tin Maung

2012-06-07T23:59:59.000Z

390

Truth and lie detection in bluffing  

Science Journals Connector (OSTI)

Beliefs in signals that reveal lies and truths are widespread. It is shown that such beliefs may be exploited strategically in signaling games of pure conflict of interest. Truth and lie detection is modeled by signals perceived by the receiver that are emitted with a probability contingent on the truth value of the sender's message. Truth or lie detection of this kind always shrinks the equilibrium set and if the probability for the truth or lie signal is sufficiently large the resulting equilibrium is unique. These results are robust to asymmetries regarding prior probabilities and payoffs.

Håkan J. Holm

2010-01-01T23:59:59.000Z

391

Nauru Island Effect Detection Data Set  

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

During Nauru99 it was noted that the island was producing small clouds that advected over the ARM site. The Nauru Island Effect Study was run for 1.5 years and the methodology developed to detect the occurrence. Nauru ACRF downwelling SW, wind direction, and air temperature data are used, along with downwelling SW data from Licor radiometers located on the southern end of the island near the airport landing strip. A statistical analysis and comparison of data from the two locations is used to detect the likely occurrence of an island influence on the Nauru ACRF site data

Long, Chuck

392

Patch layout generation by detecting feature networks  

Science Journals Connector (OSTI)

Abstract The patch layout of 3D surfaces reveals the high-level geometric and topological structures. In this paper, we study the patch layout computation by detecting and enclosing feature loops on surfaces. We present a hybrid framework which combines several key ingredients, including feature detection, feature filtering, feature curve extension, patch subdivision and boundary smoothing. Our framework is able to compute patch layouts through concave features as previous approaches, but also able to generate nice layouts through smoothing regions. We demonstrate the effectiveness of our framework by comparing with the state-of-the-art methods.

Yuanhao Cao; Dong-Ming Yan; Peter Wonka

2014-01-01T23:59:59.000Z

393

Nonlinear nanomechanical oscillators for ultrasensitive inertial detection  

DOE Patents [OSTI]

A system for ultrasensitive mass and/or force detection of this invention includes a mechanical oscillator driven to oscillate in a nonlinear regime. The mechanical oscillator includes a piezoelectric base with at least one cantilever resonator etched into the piezoelectric base. The cantilever resonator is preferably a nonlinear resonator which is driven to oscillate with a frequency and an amplitude. The system of this invention detects an amplitude collapse of the cantilever resonator at a bifurcation frequency as the cantilever resonator stimulated over a frequency range. As mass and/or force is introduced to the cantilever resonator, the bifurcation frequency shifts along a frequency axis in proportion to the added mass.

Datskos, Panagiotis George; Lavrik, Nickolay V

2013-08-13T23:59:59.000Z

394

Low activation ferritic alloys  

DOE Patents [OSTI]

Low activation ferritic alloys, specifically bainitic and martensitic stainless steels, are described for use in the production of structural components for nuclear fusion reactors. They are designed specifically to achieve low activation characteristics suitable for efficient waste disposal. The alloys essentially exclude molybdenum, nickel, nitrogen and niobium. Strength is achieved by substituting vanadium, tungsten, and/or tantalum in place of the usual molybdenum content in such alloys.

Gelles, D.S.; Ghoniem, N.M.; Powell, R.W.

1985-02-07T23:59:59.000Z

395

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

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

detect what's happening? > detect what's happening? > Detecting the world Detecting the world Let's look at the most familiar example of this source/target/detection scheme: the way in which we perceive the world. What we think of as "light" is really made up of billions and trillions of particles called "photons." Photons, like all particles, also have wave characteristics. For this reason, a photon carries information about the physical world because it interacts with what it hit. For example, imagine that there is a light bulb behind you, and a tennis ball in front of you. Photons travel from the light bulb (source), bounce off the tennis ball (target), and when these photons hit your eye (detector), you infer from the direction the photons came from that there is a round object in front of you. Moreover, you can tell by the different photon wavelengths that the object is green and tan.

396

Low energy conversion electron detection in superfluid He3 at ultra-low temperature  

E-Print Network [OSTI]

We report on the first results of the MACHe3 (MAtrix of Cells of Helium 3) prototype experiment concerning the measurement of low energy conversion electrons at ultra-low temperature. For the first time, the feasibility of the detection of low energy electrons is demonstrated in superfluid He3-B cooled down to 100 microK. Low energy electrons at 7.3 keV coming from the K shell conversion of the 14.4 keV nuclear transition of a low activity Co57 source are detected, opening the possibility to use a He3-based detector for the detection of Weakly Interacting Massive Particles (WIMPs) which are expected to release an amount of energy higher-bounded by 5.6 keV.

E. Moulin; C. Winkelmann; J. F. Macias-Perez; Yu. M. Bunkov; H. Godfrin; D. Santos

2005-04-12T23:59:59.000Z

397

NSLS 2009 Activity Report  

SciTech Connect (OSTI)

2009 was an incredibly exciting year for light sources at Brookhaven. The National Synchrotron Light Source (NSLS) hosted more than 2,200 visiting researchers, who, along with the about 50 members of our scientific staff, produced a total of 957 publications - about 20 percent of which appeared in premier journals. Covering topics ranging from Alzheimer's disease detection to ethanol-powered fuel cells, a sampling of these findings can be found in this Activity Report. We've also seen the resurfacing of some of our long-time users hard work. I was very proud to hear that two of the three recipients of the 2009 Nobel Prize in Chemistry have ties to the NSLS. Venki Ramakrishnan, a former employee in Brookhaven's biology department and long-time user of the NSLS, now at Cambridge University, and Thomas A. Steitz of Yale University, also a long-time NSLS user, shared the prize with Ada E. Yonath of the Weizmann Institute of Science for their work on the structure and function of the ribosome. In the late 1990s, Ramakrishnan and Steitz used protein crystallography at the NSLS to gather atomic-level images of two ribosome subunits: 30S (Ramakrishnan) and 50S (Steitz). Both laureates solved the high-resolution structures for these subunits based on this data. After struggling with a rough budget for several years, we received excellent funding, and then some, this year. In addition to NSLS operations funding, we received $3 million in funds from the American Recovery and Reinvestment Act (ARRA). We used that additional money for two exciting projects: construction of a full-field x-ray microscope and acquisition of several advanced x-ray detectors. The x-ray microscope will be able to image objects with a targeted spatial resolution of 30 nanometers. This capability will be particularly important for new initiatives in energy research and will prepare our users for the projected 1-nanometer resolution benchmark at the National Synchrotron Light Source II (NSLS-II). The detectors project is expected to increase the throughput of several high-demand beamlines by an order of magnitude as well as enable new classes of experiments. In addition, a huge chunk of ARRA money - $150 million - was put toward accelerating the construction of NSLS-II, which is now taking shape across the street. Now physically much more than just a pile of dirt, NSLS-II was granted Critical Decision 3 status by the Department of Energy (DOE) early last year, giving the official go-ahead for construction. In July, construction began, marked by a groundbreaking ceremony that attracted elected officials, media, and DOE, Battelle, and Stony Brook University representatives from across the state and the country. As progress on NSLS-II continues, we're working with Stony Brook University to identify ways to capitalize on the facility's unique capabilities through the Joint Photon Sciences Institute (JPSI). Included in this effort is a series of workshops to encourage the development and application of the photon sciences with collaborative research between industries, universities, and national laboratories. We helped host three of these workshops this year, focusing on microelectronics, energy storage, and materials in next-generation energy systems. The conversation and ideas generated at these meetings has been fresh and valuable and we hope to use this model to organize research opportunities in other scientific fields. Also this year: Brookhaven was deemed the lead institution for one of DOE's 46 Energy Frontier Research Centers, focused on understanding the underlying nature of superconductivity in complex materials by using techniques at the NSLS and CFN; DOE awarded a $100,000 supplemental grant to our detector program to continue the development of a new generation of x-ray detectors that use germanium sensors, which, at high energies, are much more efficient than equivalent ones based on silicon; and funding for one of our largest consortia, Case Western Reserve University's Center for Synchrotron Biosciences (CSB), was renewed through the National Inst

Nasta K.; Mona R.

2009-05-01T23:59:59.000Z

398

DETECTION OF RADIO EMISSION FROM THE HYPERACTIVE L DWARF 2MASS J13153094-2649513AB  

SciTech Connect (OSTI)

We report the detection of radio emission from the unusually active L5e + T7 binary 2MASS J13153094-2649513AB made with the Australian Telescope Compact Array. Observations at 5.5 GHz reveal an unresolved source with a continuum flux of 370 {+-} 50 {mu}Jy, corresponding to a radio luminosity of L{sub rad} = {nu}L{sub {nu}} = (9 {+-} 3) Multiplication-Sign 10{sup 23} erg s{sup -1} and log{sub 10} L{sub rad}/L{sub bol} = -5.44 {+-} 0.22. No detection is made at 9.0 GHz to a 5{sigma} limit of 290 {mu}Jy, consistent with a power-law spectrum S{sub {nu}}{proportional_to}{nu}{sup -{alpha}} with {alpha} {approx}> 0.5. The emission is quiescent, with no evidence of variability or bursts over three hours of observation, and no measurable polarization (V/I < 34%). 2MASS J1315-2649AB is one of the most radio-luminous ultracool dwarfs detected in quiescent emission to date, comparable in strength to other cool sources detected in outburst. Its detection indicates no decline in radio flux through the mid-L dwarfs. It is unique among L dwarfs in having strong and persistent H{alpha} and radio emission, indicating the coexistence of a cool, neutral photosphere (low electron density) and a highly active chromosphere (high electron density and active heating). These traits, coupled with the system's mature age and substellar secondary, make 2MASS J1315-2649AB an important test for proposed radio emission mechanisms in ultracool dwarfs.

Burgasser, Adam J.; Melis, Carl [Center for Astrophysics and Space Science, University of California San Diego, La Jolla, CA 92093 (United States); Zauderer, B. Ashley; Berger, Edo, E-mail: aburgasser@ucsd.edu [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

2013-01-01T23:59:59.000Z

399

First time nuclear material detection by one short-pulse-laser-driven  

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

Articles » Articles » First time nuclear material detection by one short-pulse-laser-driven neutron source First time nuclear material detection by one short-pulse-laser-driven neutron source The results obtained are the first experimental demonstration of active interrogation of nuclear material by a short pulse laser driven neutron source. April 3, 2013 TRIDENT pulse The results obtained are the first experimental demonstration of active interrogation of nuclear material by a short pulse laser driven neutron source. Contact James Rickman Communications Specialist (505) 665-9203 Email A single shot interrogation of the depleted uranium sample, showed a clear signal from the delayed neutrons in the detector with uranium, compared with the background, and with the typical time behavior of delayed

400

Vehicle Technologies Office: Active Solicitations  

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

Active Solicitations to Active Solicitations to someone by E-mail Share Vehicle Technologies Office: Active Solicitations on Facebook Tweet about Vehicle Technologies Office: Active Solicitations on Twitter Bookmark Vehicle Technologies Office: Active Solicitations on Google Bookmark Vehicle Technologies Office: Active Solicitations on Delicious Rank Vehicle Technologies Office: Active Solicitations on Digg Find More places to share Vehicle Technologies Office: Active Solicitations on AddThis.com... Active Solicitations To explore current financial opportunity solicitations, click on the opportunity titles in the table below. To sort the list, click on the arrows in the column headings. Technology Solicitation Title Open Date Close Date Hydrogen and Fuel Cells Research and Development for Hydrogen Storage

Note: This page contains sample records for the topic "detectable activity mda" 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

Digital radiographic systems detect boiler tube cracks  

SciTech Connect (OSTI)

Boiler water wall leaks have been a major cause of steam plant forced outages. But conventional nondestructive evaluation techniques have a poor track record of detecting corrosion fatigue cracking on the inside surface of the cold side of waterwall tubing. EPRI is performing field trials of a prototype direct-digital radiographic system that promises to be a game changer. 8 figs.

Walker, S. [EPRI, Charlotte, NC (United States)

2008-06-15T23:59:59.000Z

402

Detection of VHF lightning from GPS orbit  

SciTech Connect (OSTI)

Satellite-based VHF' lightning detection is characterized at GPS orbit by using a VHF receiver system recently launched on the GPS SVN 54 satellite. Collected lightning triggers consist of Narrow Bipolar Events (80%) and strong negative return strokes (20%). The results are used to evaluate the performance of a future GPS-satellite-based VHF global lightning monitor.

Suszcynsky, D. M. (David M.)

2003-01-01T23:59:59.000Z

403

sigma-aldrich.com DETECTION AND PURIFICATION  

E-Print Network [OSTI]

sigma-aldrich.com 82 DETECTION AND PURIFICATION RecombinantProtein DetectionandPurification Product of Working Dilution: water results in a solution of 0.01 M sodium phosphate · 1:2,000 by Western blotting tagged fusion purification protein per 1 ml of settled resin. Elution: At least 3.5 nmoles of HA

Lebendiker, Mario

404

Composite scintillators for detection of ionizing radiation  

DOE Patents [OSTI]

Applicant's present invention is a composite scintillator having enhanced transparency for detecting ionizing radiation comprising a material having optical transparency wherein said material comprises nano-sized objects having a size in at least one dimension that is less than the wavelength of light emitted by the composite scintillator wherein the composite scintillator is designed to have selected properties suitable for a particular application.

Dai, Sheng (Knoxville, TN) [Knoxville, TN; Stephan, Andrew Curtis (Knoxville, TN) [Knoxville, TN; Brown, Suree S. (Knoxville, TN) [Knoxville, TN; Wallace, Steven A. (Knoxville, TN) [Knoxville, TN; Rondinone, Adam J [Knoxville, TN

2010-12-28T23:59:59.000Z

405

Binderless composite scintillator for neutron detection  

DOE Patents [OSTI]

Composite scintillator material consisting of a binderless sintered mixture of a Lithium (Li) compound containing .sup.6Li as the neutron converter and Y.sub.2SiO.sub.5:Ce as the scintillation phosphor, and the use of this material as a method for neutron detection. Other embodiments of the invention include various other Li compounds.

Hodges, Jason P [Knoxville, TN; Crow, Jr; Lowell, M [Oak Ridge, TN; Cooper, Ronald G [Oak Ridge, TN

2009-03-10T23:59:59.000Z

406

Automatic detection of rumor on Sina Weibo  

Science Journals Connector (OSTI)

The problem of gauging information credibility on social networks has received considerable attention in recent years. Most previous work has chosen Twitter, the world's largest micro-blogging platform, as the premise of research. In this work, we shift ... Keywords: Sina Weibo, classification, rumor detection

Fan Yang; Yang Liu; Xiaohui Yu; Min Yang

2012-08-01T23:59:59.000Z

407

Quantitative multiplex detection of pathogen biomarkers  

DOE Patents [OSTI]

The present invention addresses the simultaneous detection and quantitative measurement of multiple biomolecules, e.g., pathogen biomarkers through either a sandwich assay approach or a lipid insertion approach. The invention can further employ a multichannel, structure with multi-sensor elements per channel.

Mukundan, Harshini; Xie, Hongzhi; Swanson, Basil I; Martinez, Jennifer; Grace, Wynne K

2014-10-14T23:59:59.000Z

408

Automatic Video Shot Detection from MPEG Stream  

E-Print Network [OSTI]

Automatic Video Shot Detection from MPEG Stream Jianping Fan Department of Computer Science;Why we need video shots? a. Text Retrieval: Keyword Extraction Indexing Document Storage Reverse File Indexing #12;Why we need video shots? b. Database Query: Entity Extraction sid name login age gpa 53666

Fan, Jianping

409

Visual Change Detection on Tunnel Linings  

E-Print Network [OSTI]

. Comaniciu and P. Meer. Mean shift: A robust approach toward feature space analysis. Trans. PAMI, 24(5):603–619, 2002. 4. Olivier Delaunoy, Nuno Gracias, and Rafael Gar- cia. Towards detecting changes in underwater im- age sequences. In OCEANS 2008-MTS...

Stent, Simon; Gherardi, Riccardo; Stenger, Björn; Soga, Kenichi; Cipolla, Roberto

2014-11-28T23:59:59.000Z

410

Fusion Protein Products Screen Purify Detect Cleave  

E-Print Network [OSTI]

Fusion Protein Products · Screen · Purify · Detect · Cleave Fusion Protein Products · Screen researchers look to plasmid vectors to express fusion proteins, they find themselves in need of methods proteins is also included for those fusion proteins that may have an inaccessible tag. Pierce offers a host

Lebendiker, Mario

411

Coated semiconductor devices for neutron detection  

DOE Patents [OSTI]

A device for detecting neutrons includes a semi-insulated bulk semiconductor substrate having opposed polished surfaces. A blocking Schottky contact comprised of a series of metals such as Ti, Pt, Au, Ge, Pd, and Ni is formed on a first polished surface of the semiconductor substrate, while a low resistivity ("ohmic") contact comprised of metals such as Au, Ge, and Ni is formed on a second, opposed polished surface of the substrate. In one embodiment, n-type low resistivity pinout contacts comprised of an Au/Ge based eutectic alloy or multi-layered Pd/Ge/Ti/Au are also formed on the opposed polished surfaces and in contact with the Schottky and ohmic contacts. Disposed on the Schottky contact is a neutron reactive film, or coating, for detecting neutrons. The coating is comprised of a hydrogen rich polymer, such as a polyolefin or paraffin; lithium or lithium fluoride; or a heavy metal fissionable material. By varying the coating thickness and electrical settings, neutrons at specific energies can be detected. The coated neutron detector is capable of performing real-time neutron radiography in high gamma fields, digital fast neutron radiography, fissile material identification, and basic neutron detection particularly in high radiation fields.

Klann, Raymond T. (Bolingbrook, IL); McGregor, Douglas S. (Whitmore Lake, MI)

2002-01-01T23:59:59.000Z

412

Explosive Detection in Aviation Applications Using CT  

SciTech Connect (OSTI)

CT scanners are deployed world-wide to detect explosives in checked and carry-on baggage. Though very similar to single- and dual-energy multi-slice CT scanners used today in medical imaging, some recently developed explosives detection scanners employ multiple sources and detector arrays to eliminate mechanical rotation of a gantry, photon counting detectors for spectral imaging, and limited number of views to reduce cost. For each bag scanned, the resulting reconstructed images are first processed by automated threat recognition algorithms to screen for explosives and other threats. Human operators review the images only when these automated algorithms report the presence of possible threats. The US Department of Homeland Security (DHS) has requirements for future scanners that include dealing with a larger number of threats, higher probability of detection, lower false alarm rates and lower operating costs. One tactic that DHS is pursuing to achieve these requirements is to augment the capabilities of the established security vendors with third-party algorithm developers. A third-party in this context refers to academics and companies other than the established vendors. DHS is particularly interested in exploring the model that has been used very successfully by the medical imaging industry, in which university researchers develop algorithms that are eventually deployed in commercial medical imaging equipment. The purpose of this paper is to discuss opportunities for third-parties to develop advanced reconstruction and threat detection algorithms.

Martz, H E; Crawford, C R

2011-02-15T23:59:59.000Z

413

Biosensors for Whole-Cell Bacterial Detection  

Science Journals Connector (OSTI)

...detection of secondary antibody with GOD Biotinyl antibody 3 101-3...saturated calomel electrode; GOD, glucose oxidase; EMF, electron...antibody-conjugated magnetic particles were suspended on top of a gold...engineering and developments in particle research are moving this field...

Asif Ahmed; Jo V. Rushworth; Natalie A. Hirst; Paul A. Millner

2014-07-01T23:59:59.000Z

414

TOWARDS ROBUST FALL DETECTION Violeta Mirchevska1  

E-Print Network [OSTI]

on the healthcare expenditures, which already account for 9% of the EU's GDP spending [1]. The development with comprehensive monitoring and diagnostic data. The European FP7 project Confidence ­ Ubiquitous care system elderly user in real-time. It encompasses detection of falls as well as changes in behavior

LuÂ?trek, Mitja

415

Development of Microfluidic Devices Incorporating Electrochemical Detection  

E-Print Network [OSTI]

Development of Microfluidic Devices Incorporating Electrochemical Detection Anne Regel Submitted to the Department of Chemistry and the Graduate School of the University of Kansas in partial fulfillment of the requirements for the degree... _______________________________ Karen Nordheden Dissertation Defense: August 21, 2013 ii The Dissertation Committee for Anne Regel certifies that this is the approved version of the following dissertation: Development of Microfluidic Devices Incorporating...

Regel, Anne

2014-05-31T23:59:59.000Z

416

Fuel cell flooding detection and correction  

DOE Patents [OSTI]

Method and apparatus for monitoring an H.sub.2 -O.sub.2 PEM fuel cells to detect and correct flooding. The pressure drop across a given H.sub.2 or O.sub.2 flow field is monitored and compared to predetermined thresholds of unacceptability. If the pressure drop exists a threshold of unacceptability corrective measures are automatically initiated.

DiPierno Bosco, Andrew (Rochester, NY); Fronk, Matthew Howard (Honeoye Falls, NY)

2000-08-15T23:59:59.000Z

417

Object Detection Combining Recognition and Segmentation  

E-Print Network [OSTI]

segmentation. There are two main steps in this method: a hypothesis generation step and a verification step. In the top-down hy- pothesis generation step, we design an improved Shape Context feature, which is more. We develop an object detection method combining top-down recog- nition with bottom-up image

Plotkin, Joshua B.

418

Oxygen Detection via Nanoscale Optical Indicators  

E-Print Network [OSTI]

Oxygen Detection via Nanoscale Optical Indicators Ruby N. Ghosh Dept. of Physics Michigan State University East Lansing, MI, USA weekschr@msu.edu Abstract--Oxygen plays a ubiquitous role in terrestrial developed an optical technique for monitoring oxygen in both gas and liquid phases utilizing nanoscale metal

Ghosh, Ruby N.

419

All row, planar fault detection system  

DOE Patents [OSTI]

An apparatus, program product and method for detecting nodal faults may simultaneously cause designated nodes of a cell to communicate with all nodes adjacent to each of the designated nodes. Furthermore, all nodes along the axes of the designated nodes are made to communicate with their adjacent nodes, and the communications are analyzed to determine if a node or connection is faulty.

Archer, Charles Jens; Pinnow, Kurt Walter; Ratterman, Joseph D; Smith, Brian Edward

2013-07-23T23:59:59.000Z

420

Laser speckle photography for surface tampering detection  

E-Print Network [OSTI]

It is often desirable to detect whether a surface has been touched, even when the changes made to that surface are too subtle to see in a pair of before and after images. To address this challenge, we introduce a new imaging ...

Shih, YiChang

Note: This page contains sample records for the topic "detectable activity mda" 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

Laser speckle photography for surface tampering detection  

E-Print Network [OSTI]

It is often desirable to detect whether a surface has been touched, even when the changes made to that surface are too subtle to see in a pair of before and after images. To address this challenge, we introduce a new imaging ...

Shih, YiChang

2012-01-01T23:59:59.000Z

422

DYNAMIC DETECTION OF WORKLOAD EXECUTION PHASES  

E-Print Network [OSTI]

: Electrical Engineering New Mexico State University Las Cruces, New Mexico July 2002 #12;ii "Dynamic Detection;v VITA June 20, 1980 Born in Alamogordo, New Mexico. 1998 Graduated from Alamogordo High School, Alamogordo, New Mexico. 1998-2002 B.S., New Mexico State University, Las Cruces, New Mexico. 2000 and 2001

Johnson, Eric E.

423

Standoff concealed weapon detection using a 350 GHz radar imaging system  

SciTech Connect (OSTI)

The Pacific Northwest National Laboratory is currently developing a 350 GHz, active, wideband, three-dimensional, radar imaging system to evaluate the feasibility of active sub-mm imaging for standoff concealed weapon detection. The prototype radar imaging system is based on a wideband, heterodyne, frequency-multiplier-based transceiver system coupled to a quasi-optical focusing system and high-speed rotating conical scanner. The wideband operation of this system provides accurate ranging information, and the images obtained are fully three-dimensional. Recent improvements to the system include increased imaging speed using improved balancing techniques, wider bandwidth, and image display techniques.

Sheen, David M.; Hall, Thomas E.; Severtsen, Ronald H.; McMakin, Douglas L.; Hatchell, Brian K.; Valdez, Patrick LJ

2010-04-01T23:59:59.000Z

424

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

425

Apparatus and methods for real-time detection of explosives devices  

DOE Patents [OSTI]

The present disclosure relates, according to some embodiments, to apparatus, devices, systems, and/or methods for real-time detection of a concealed or camouflaged explosive device (e.g., EFPs and IEDs) from a safe stand-off distance. Apparatus, system and/or methods of the disclosure may also be operable to identify and/or spatially locate and/or detect an explosive device. An apparatus or system may comprise an x-ray generator that generates high-energy x-rays and/or electrons operable to contact and activate a metal comprised in an explosive device from a stand-off distance; and a detector operable to detect activation of the metal. Identifying an explosive device may comprise detecting characteristic radiation signatures emitted by metals specific to an EFP, an IED or a landmine. Apparatus and systems of the disclosure may be mounted on vehicles and methods of the disclosure may be performed while moving in the vehicle and from a safe stand-off distance.

Blackburn, Brandon W [Idaho Falls, ID; Hunt, Alan W [Pocatello, ID; Chichester, David L [Idaho Falls, ID

2014-01-07T23:59:59.000Z

426

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

427

FRAUD DETECTION IN COMMUNICATIONS NETWORKS USING NEURAL AND PROBABILISTIC METHODS  

E-Print Network [OSTI]

FRAUD DETECTION IN COMMUNICATIONS NETWORKS USING NEURAL AND PROBABILISTIC METHODS Michiaki Fraud detection refers to the attempt to detect illegiti- mate usage of a communications network. Three methods to detect fraud are presented. Firstly, a feed-forward neu- ral network based on supervised

Tresp, Volker

428

Unsupervised density-based behavior change detection in data streams  

Science Journals Connector (OSTI)

The ability to detect changes in the data distribution is an important issue in Data Stream mining. Detecting changes in data distribution allows the adaptation of a previously learned model to accommodate the most recent data and, therefore, improve ... Keywords: Change Detection, Clustering, Data Streams, Novelty Detection, Unsupervised Learning

Rosane M. M. Vallim; José A. Andrade Filho; Rodrigo F. de Mello; André C. P. L. F. de Carvalho; João Gama

2014-03-01T23:59:59.000Z

429

Sensing Fork: Eating Behavior Detection Utensil and Mobile  

E-Print Network [OSTI]

chilren's eating behavior; gamification; persuasive computing; mobile computing; eating action detection

Ouhyoung, Ming

430

Obstacle Detection from IPM and Super-Homography Nicolas SIMOND  

E-Print Network [OSTI]

Detection, obstacle avoidance, etc. The obstacle detection systems can be divided into different groups according to the types of obstacle the system detects, the ranges, the refresh rate, the reliability or not of road markers. In [1], where an exhaustive recent review of the vehicle detection is presented, all

Paris-Sud XI, Université de

431

Radar Vehicle Detection Within Four Quadrant Gate Crossings  

E-Print Network [OSTI]

Vehicle Detection System for Four-Quadrant Gate Warning Systems and Blocked Crossing Detection. Washington. . . . . Radar Vehicle Detection Within Four Quadrant Gate Crossings Dylan Horne 2014 Global Level and delay but ultimately in loss of life. Radar Vehicle Detection Within Four Quadrant Gate Crossings #12

Illinois at Urbana-Champaign, University of

432

Transcription factor-based biosensors for detecting dicarboxylic acids  

DOE Patents [OSTI]

The invention provides methods and compositions for detecting dicarboxylic acids using a transcription factor biosensor.

Dietrich, Jeffrey; Keasling, Jay

2014-02-18T23:59:59.000Z

433

Work Force Restructuring Activities  

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

Force Restructuring Activities Force Restructuring Activities December 10, 2008 Note: Current updates are in bold # Planned Site/Contractor HQ Approved Separations Status General * LM has finalized the compilation of contractor management team separation data for the end of FY07 actuals and end of FY08 and FY09 projections. LM has submitted to Congress the FY 2007 Annual Report on contractor work force restructuring activities. The report has been posted to the LM website. *LM conducted a DOE complex-wide data call to the Field and Operations offices for DOE Contractor Management teams to provide, by program, actual contractor separation data for the end of FY 2008 and projections for the end of FY 2009 and FY 2010. The data will be used to keep senior management informed of upcoming large WFR actions.

434

SOLAR ACTIVITY AND TERRESTRIAL DISTURBANCES  

Science Journals Connector (OSTI)

SOLAR ACTIVITY AND TERRESTRIAL DISTURBANCES Donald H. Menzel HARVARD COLLEGE OBSERVATORY SOLAR ACTIVITY AND TERRESTRIAL DISTURBANCES* BY...OBSERVATORY Scientists have long recognized that solar activity is somehow responsible for, or...

Donald H. Menzel

1954-01-01T23:59:59.000Z

435

Laser-Induced Fluorescence Detection in High-Throughput Screening of Heterogeneous Catalysts and Single Cells Analysis  

SciTech Connect (OSTI)

Laser-induced fluorescence detection is one of the most sensitive detection techniques and it has found enormous applications in various areas. The purpose of this research was to develop detection approaches based on laser-induced fluorescence detection in two different areas, heterogeneous catalysts screening and single cell study. First, we introduced laser-induced imaging (LIFI) as a high-throughput screening technique for heterogeneous catalysts to explore the use of this high-throughput screening technique in discovery and study of various heterogeneous catalyst systems. This scheme is based on the fact that the creation or the destruction of chemical bonds alters the fluorescence properties of suitably designed molecules. By irradiating the region immediately above the catalytic surface with a laser, the fluorescence intensity of a selected product or reactant can be imaged by a charge-coupled device (CCD) camera to follow the catalytic activity as a function of time and space. By screening the catalytic activity of vanadium pentoxide catalysts in oxidation of naphthalene, we demonstrated LIFI has good detection performance and the spatial and temporal resolution needed for high-throughput screening of heterogeneous catalysts. The sample packing density can reach up to 250 x 250 subunits/cm{sub 2} for 40-{micro}m wells. This experimental set-up also can screen solid catalysts via near infrared thermography detection.

Hui Su

2001-05-01T23:59:59.000Z

436

Activities and Accomplishments  

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

Activities and Accomplishments Denver * May 11, 2011 Working Groups * Financial Guidance * PSR Improvements * Notification * Communications Webinars * RFID Demonstration and TRANSCOM Enhancements - November 17, 2010 - ARG-US RFID/TRANSCOM Real-time Tracking System - TRANSCOM Enhancements * Communications for Waste Movements - February 24, 2011 - Mixed/LLW Forecast: Baseline Disposition Data and Waste Information Management System (WIMS) - Prospective Shipment Report Improvements Wiki Site * Resource for NTSF members - Information on NTSF meetings and webinars - Ad hoc working group call summaries and documents for review - Information on DOE and other federal agency activities (e.g., NRC rulemaking) * Private site that requires participants to "join" in

437

Features classification using geometrical deformation feature vector of support vector machine and active appearance algorithm for automatic facial expression recognition  

Science Journals Connector (OSTI)

This paper proposes a method for facial expression recognition in image sequences. Face is detected from the scene and then facial features are detected using image normalization, and thresholding techniques. Using an optimization algorithm the Candide ... Keywords: Active appearance model, Feature extraction, Normalization, SVM

Rajesh A. Patil, Vineet Sahula, A. S. Mandal

2014-04-01T23:59:59.000Z

438

Standard test method for analysis of urine for uranium-235 and uranium-238 isotopes by inductively coupled plasma-mass spectrometry  

E-Print Network [OSTI]

1.1 This test method covers the determination of the concentration of uranium-235 and uranium-238 in urine using Inductively Coupled Plasma-Mass Spectrometry. This test method can be used to support uranium facility bioassay programs. 1.2 This method detection limits for 235U and 238U are 6 ng/L. To meet the requirements of ANSI N13.30, the minimum detectable activity (MDA) of each radionuclide measured must be at least 0.1 pCi/L (0.0037 Bq/L). The MDA translates to 47 ng/L for 235U and 300 ng/L for 238U. Uranium– 234 cannot be determined at the MDA with this test method because of its low mass concentration level equivalent to 0.1 pCi/L. 1.3 The digestion and anion separation of urine may not be necessary when uranium concentrations of more than 100 ng/L are present. 1.4 Units—The values stated in picoCurie per liter units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1....

American Society for Testing and Materials. Philadelphia

2010-01-01T23:59:59.000Z

439

PTH-related protein upregulates integrin {alpha}6{beta}4 expression and activates Akt in breast cancer cells  

SciTech Connect (OSTI)

Breast cancer is the most common carcinoma that metastasizes to bone. Tumor-produced parathyroid hormone-related protein (PTHrP), a known stimulator of osteoclastic bone resorption, is a major mediator of the osteolytic process in breast cancer. We have previously shown that PTHrP increases breast cancer cell proliferation, survival, migration, and pro-invasive integrin {alpha}6{beta}4 expression. To determine the role of integrin {alpha}6{beta}4 in these PTHrP-mediated effects, we utilized two strategies to modulate expression of the {alpha}6 and {beta}4 subunits in parental and PTHrP-overexpressing MDA-MB-231 and MCF-7 cells: overexpression of {alpha}6{beta}4 by transfection with constructs encoding the {alpha}6 and {beta}4 subunits, and suppression of endogenous {alpha}6{beta}4 expression by transfection with siRNAs targeting these subunits. We now show that the effects of PTHrP are mediated via upregulation of integrin {alpha}6{beta}4 expression. We also show that integrin {alpha}6{beta}4 expression is modulated at the mRNA level, indicating a transcriptional and/or post-transcriptional mechanism of action for PTHrP. PTHrP expression also increased the levels of phosphorylated Akt, with a consequent increase in the levels of phosphorylated (inactive) glycogen synthase kinase-3 (GSK-3). The role of PTHrP in breast cancer growth and metastasis may thus be mediated via upregulation of integrin {alpha}6{beta}4 expression and Akt activation, with consequent inactivation of GSK-3.

Shen Xiaoli [Department of Pharmacology and Toxicology, and Sealy Center for Molecular Science, University of Texas Medical Branch, 10th and Market Streets, Galveston, TX 77555 (United States); Falzon, Miriam [Department of Pharmacology and Toxicology, and Sealy Center for Molecular Science, University of Texas Medical Branch, 10th and Market Streets, Galveston, TX 77555 (United States)]. E-mail: mfalzon@utmb.edu

2006-11-15T23:59:59.000Z

440

Neutron activation experiments in radiochemistry  

Science Journals Connector (OSTI)

Neutron activation experiments in radiochemistry ... Describes experimentation involving the neutron activation of a variety of samples irradiated in a subcritical reactor and a paraffin-moderated source. ...

Karl S. Vorres

1960-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

Federal Activities in the Bioeconomy  

Broader source: Energy.gov [DOE]

Plenary V: Federal Activities in the Bioeconomy Federal Activities in the Bioeconomy Zia Haq, Senior Analyst, Technology Manager, Bioenergy Technologies Office, U.S. Department of Energy

442

DETECTING UV LIGHT To demonstrate the existence of light invisible to our eyes by making a bracelet from  

E-Print Network [OSTI]

, these rays can be detected in other ways. X rays, for instance, change the color of photographic film. So the film. The beads in this activity work like X-ray film. They contain pigments that change color when, such as a desk lamp, an overhead projector, or fluorescent lights in the classroom. If you have a window in your

443

Applied change of mean detection techniques for HVAC fault detection and diagnosis and power monitoring  

E-Print Network [OSTI]

A signal processing technique, the detection of abrupt changes in a time-series signal, is implemented with two different applications related to energy use in buildings. The first application is a signal pre-processor for ...

Hill, Roger Owen

1995-01-01T23:59:59.000Z

444

Detecting gas flares and estimating flaring volumes at individual flow stations using MODIS data  

Science Journals Connector (OSTI)

Abstract Gas flaring has gained global recognition as a prominent agent of pollution, leading to the establishment of the Global Gas Flaring Reduction (GGFR) initiative, which requires an objective means of monitoring flaring activity. Because auditable information on flaring activity is difficult to obtain there have recently been attempts to detect flares using satellite imagery, typically at global scales. However, to adequately assess the environmental and health impacts of flaring from local to regional scales, it is important that we have a means of acquiring information on the location of individual active flaring sites and the volume of gas combusted at these sites. In this study we developed an approach to the retrieval of such information using nighttime MODIS thermal imagery. The MODIS flare detection technique (MODET) and the MODIS flare volume estimation technique (MOVET) both exploit the absolute and contextual radiometric response of flare sites. The levels of detection accuracy and estimation error were quantified using independent observations of flare location and volume. The MODET and MOVET were applied to an archive of MODIS data spanning 2000–2014 covering the Niger Delta, Nigeria, a significant global hotspot of flaring activity. The results demonstrate the substantial spatial and temporal variability in gas flaring across the region, between states and between onshore and offshore sites. Thus, whilst the estimated total volume of gas flared in the region over the study period is large (350 Billion Cubic Metres), the heterogeneity in the flaring indicates that the impacts of such flares will be highly variable in space and time. In this context, the MODET and MOVET offer a consistent and objective means of monitoring flaring activity over an appropriate range of scales and it is now important that their robustness and transferability is tested in other oil-producing regions of the world.

Obinna C.D. Anejionu; G. Alan Blackburn; J. Duncan Whyatt

2015-01-01T23:59:59.000Z

445

Active collaborative permutation learning  

Science Journals Connector (OSTI)

We consider the problem of Collaborative Permutation Recovery, i.e. recovering multiple permutations over objects (e.g. preference rankings over different options) from limited pairwise comparisons. We tackle both the problem of how to recover multiple ... Keywords: active learning, collaborative ranking, matrix factorization

Jialei Wang, Nathan Srebro, James Evans

2014-08-01T23:59:59.000Z

446

Geothermal Energy (5 Activities)  

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

Geothermal energy is one of the components of the National Energy Policy: “Reliable, Affordable, and Environmentally Sound Energy for America’s Future.” This lesson includes five activities that will give your students information on the principles of heat transfer and the technology of using geothermal energy to generate electricity.

447

Taxonomy of handover activities  

Science Journals Connector (OSTI)

Handover of software systems is a critical stage in the system lifecycle. Despite this, it is still an under researched area. In this paper, we have developed an initial taxonomy of activities for software handover. Our taxonomy consists of seven process ... Keywords: deployment, documentation, testing, training, transition

Ahmad Salman Khan; Mira Kajko-Mattsson

2010-06-01T23:59:59.000Z

448

Rocket Activity "Hero Engine"  

E-Print Network [OSTI]

was a spinning copper sphere that was propelled by a thrust produced by a jet of steam. The engine was an early34 Rocket Activity Pop Can "Hero Engine" Objective To investigate Newton's third law of motion engines out of soft drink cans and investigate ways to increase the action-reaction thrust produced

Provancher, William

449

Active-bridge oscillator  

SciTech Connect (OSTI)

An active bridge oscillator is formed from a differential amplifier where positive feedback is a function of the impedance of one of the gain elements and a relatively low value common emitter resistance. This use of the nonlinear transistor parameter h stabilizes the output and eliminates the need for ALC circuits common to other bridge oscillators.

Wessendorf, Kurt O. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

450

Protein active sites, interaction  

E-Print Network [OSTI]

for active site identification ! Manual MSA and structure analysis ! Catalytic Site Atlas (homology-based) ! Evolutionary Trace (MSA subfamily- and family-wide conservation; phylogenetic tree and structure analysis) ! 3D", Bartlett et al. J Mol Biol. 2002 Nov 15;324(1):105-21. · "An evolutionary trace method defines binding

Sjölander, Kimmen

451

Detection and Production of Methane Hydrate  

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

Oil & Natural Gas Technology Oil & Natural Gas Technology DOE Award No.: DE-FC26-06NT42960 Quarterly Progress Report Reporting Period: April-June 2007 Detection and Production of Methane Hydrate Submitted by: Department of Chemical and Biomolecular Engineering Rice University - MS 362 6100 Main St. Houston, TX 77251-1892 Prepared for: United States Department of Energy National Energy Technology Laboratory August, 2007 Office of Fossil Energy Detection and Production of Methane Hydrate Quarterly Progress Report Reporting Period: April-June 2007 Prepared by: George Hirasaki Rice University August 2007 CONTRACT NO. DE-FC26-06NT42960 Department of Chemical and Biomolecular Engineering Rice University - MS 362 6100 Main St. Houston, TX 77251-1892 Phone: 713-348-5416; Fax: 713-348-5478; Email: gjh@rice.edu

452

Damage detection in initially nonlinear systems  

SciTech Connect (OSTI)

The primary goal of Structural Health Monitoring (SHM) is to detect structural anomalies before they reach a critical level. Because of the potential life-safety and economic benefits, SHM has been widely studied over the past decade. In recent years there has been an effort to provide solid mathematical and physical underpinnings for these methods; however, most focus on systems that behave linearly in their undamaged state - a condition that often does not hold in complex 'real world' systems and systems for which monitoring begins mid-lifecycle. In this work, we highlight the inadequacy of linear-based methodology in handling initially nonlinear systems. We then show how the recently developed autoregressive support vector machine (AR-SVM) approach to time series modeling can be used for detecting damage in a system that exhibits initially nonlinear response. This process is applied to data acquired from a structure with induced nonlinearity tested in a laboratory environment.

Bornn, Luke [Los Alamos National Laboratory; Farrar, Charles [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

453

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

454

Technique for ship/wake detection  

DOE Patents [OSTI]

An automated ship detection technique includes accessing data associated with an image of a portion of Earth. The data includes reflectance values. A first portion of pixels within the image are masked with a cloud and land mask based on spectral flatness of the reflectance values associated with the pixels. A given pixel selected from the first portion of pixels is unmasked when a threshold number of localized pixels surrounding the given pixel are not masked by the cloud and land mask. A spatial variability image is generated based on spatial derivatives of the reflectance values of the pixels which remain unmasked by the cloud and land mask. The spatial variability image is thresholded to identify one or more regions within the image as possible ship detection regions.

Roskovensky, John K. (Albuquerque, NM)

2012-05-01T23:59:59.000Z

455

Muon Tracking to Detect Special Nuclear Materials  

SciTech Connect (OSTI)

Previous experiments have proven that nuclear assemblies can be imaged and identified inside of shipping containers using vertical trajectory cosmic-ray muons with two-sided imaging. These experiments have further demonstrated that nuclear assemblies can be identified by detecting fission products in coincidence with tracked muons. By developing these technologies, advanced sensors can be designed for a variety of warhead monitoring and detection applications. The focus of this project is to develop tomographic-mode imaging using near-horizontal trajectory muons in conjunction with secondary particle detectors. This will allow imaging in-situ without the need to relocate the objects and will enable differentiation of special nuclear material (SNM) from other high-Z materials.

Schwellenbach, D. [NSTec; Dreesen, W. [NSTec; Green, J. A. [NSTec; Tibbitts, A. [NSTec; Schotik, G. [NSTec; Borozdin, K. [LANL; Bacon, J. [LANL; Midera, H. [LANL; Milner, C. [LANL; Morris, C. [LANL; Perry, J. [LANL; Barrett, S. [UW; Perry, K. [UW; Scott, A. [UW; Wright, C. [UW; Aberle, D. [NSTec

2013-03-18T23:59:59.000Z

456

Neutrinos, Dark Matter and Nuclear Detection  

SciTech Connect (OSTI)

Solutions to problems in nuclear non-proliferation and counter-terrorism may be found at the forefront of modern physics. Neutrino oscillation experiments, dark matter searches, and high energy astrophysics, are based on technology advances that have may also have application to nuclear detection. The detection problems share many characteristics, including energy scales, time structures, particle-type, and, of course, the combination of high backgrounds and low signal levels. This convergence of basic and applied physics is realized in non-proliferation and homeland security projects at Lawrence Livermore National Laboratory. Examples described here include reactor anti-neutrino monitoring, dual-phase noble liquid TPC development, gamma-ray telescopes, and nuclear resonance fluorescence.

Goldstein, W H; Bernstein, A; Craig, W W; Johnson, M

2007-05-29T23:59:59.000Z

457

Detecting criminal organizations in mobile phone networks  

E-Print Network [OSTI]

The study of criminal networks using traces from heterogeneous communication media is acquiring increasing importance in nowadays society. The usage of communication media such as phone calls and online social networks leaves digital traces in the form of metadata that can be used for this type of analysis. The goal of this work is twofold: first we provide a theoretical framework for the problem of detecting and characterizing criminal organizations in networks reconstructed from phone call records. Then, we introduce an expert system to support law enforcement agencies in the task of unveiling the underlying structure of criminal networks hidden in communication data. This platform allows for statistical network analysis, community detection and visual exploration of mobile phone network data. It allows forensic investigators to deeply understand hierarchies within criminal organizations, discovering members who play central role and provide connection among sub-groups. Our work concludes illustrating the a...

Ferrara, Emilio; Catanese, Salvatore; Fiumara, Giacomo

2014-01-01T23:59:59.000Z

458

Detecting low levels of radionuclides in fluids  

DOE Patents [OSTI]

An apparatus and method for detecting low levels of one or more radionuclides in a fluid sample uses a substrate that includes an ion exchange resin or other sorbent material to collect the radionuclides. A collecting apparatus includes a collecting chamber that exposes the substrate to a measured amount of the fluid sample such that radionuclides in the fluid sample are collected by the ion exchange resin. A drying apparatus, which can include a drying chamber, then dries the substrate. A measuring apparatus measures emissions from radionuclides collected on the substrate. The substrate is positioned in a measuring chamber proximate to a detector, which provides a signal in response to emissions from the radionuclides. Other analysis methods can be used to detect non-radioactive analytes, which can be collected with other types of sorbent materials.

Patch, Keith D. (Lexington, MA); Morgan, Dean T. (Sudbury, MA)

2000-01-01T23:59:59.000Z

459

Surface property detection apparatus and method  

DOE Patents [OSTI]

Apparatus and method for detecting, determining, and imaging surface resistance corrosion, thin film growth, and oxide formation on the surface of conductors or other electrical surface modification. The invention comprises a modified confocal resonator structure with the sample remote from the radiating mirror. Surface resistance is determined by analyzing and imaging reflected microwaves; imaging reveals anomalies due to surface impurities, non-stoichiometry, and the like, in the surface of the superconductor, conductor, dielectric, or semiconductor. 4 figs.

Martens, J.S.; Ginley, D.S.; Hietala, V.M.; Sorensen, N.R.

1995-08-08T23:59:59.000Z

460

Explosive simulants for testing explosive detection systems  

DOE Patents [OSTI]

Explosives simulants that include non-explosive components are disclosed that facilitate testing of equipment designed to remotely detect explosives. The simulants are non-explosive, non-hazardous materials that can be safely handled without any significant precautions. The simulants imitate real explosives in terms of mass density, effective atomic number, x-ray transmission properties, and physical form, including moldable plastics and emulsions/gels.

Kury, John W. (Danville, CA); Anderson, Brian L. (Lodi, CA)

1999-09-28T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

GaTe semiconductor for radiation detection  

DOE Patents [OSTI]

GaTe semiconductor is used as a room-temperature radiation detector. GaTe has useful properties for radiation detectors: ideal bandgap, favorable mobilities, low melting point (no evaporation), non-hygroscopic nature, and availability of high-purity starting materials. The detector can be used, e.g., for detection of illicit nuclear weapons and radiological dispersed devices at ports of entry, in cities, and off shore and for determination of medical isotopes present in a patient.

Payne, Stephen A. (Castro Valley, CA); Burger, Arnold (Nashville, TN); Mandal, Krishna C. (Ashland, MA)

2009-06-23T23:59:59.000Z

462

Alternative Detection Methods for Highest Energy Neutrinos  

E-Print Network [OSTI]

Several experimental techniques are currently under development, to measure the expected tiny fluxes of highest energy neutrinos above 10**18 eV. Projects in different stages of realisation are discussed here, which are based on optical and radio as well as acoustic detectors. For the detection of neutrino events in this energy range a combination of different detector concepts in one experiment seems to be most promising.

Rolf Nahnhauer

2004-11-26T23:59:59.000Z

463

First fusion proton measurements in TEXTOR plasmas using activation technique  

SciTech Connect (OSTI)

MeV particle loss measurements from fusion plasmas, in particular alpha particles, remain difficult in large fusion devices and further R and D is needed for ITER. This paper describes the first attempt to measure 3 MeV escaping fusion protons emitted from TEXTOR tokamak plasmas using activation technique. This technique was successfully demonstrated, initially, in 2006 on the JET tokamak. An ion camera equipped with a collimator and several types of activation detectors was installed inside the TEXTOR vacuum vessel to perform these measurements. After irradiation, the detectors were analyzed using ultra low level gamma-ray spectrometry at the HADES underground laboratory. 3 MeV escaping fusion protons were detected in larger number -{approx}6 times more - compared to earlier measurements using this technique on JET. Another major progress was the reduction of the cooling time by a factor of 50, which made possible to detect radionuclides with half-life of less than 90 min.

Bonheure, G.; Wassenhove, G. Van [ERM-KMS, Trilateral Euregio Cluster, B-1000 Brussels (Belgium); Mlynar, J. [Association Euratom-IPP.CR, Institute of Plasma Physics AS CR, v.v.i., Za Slovankou 3, CZ-182 00 Praha 8 (Czech Republic); Hult, M.; Gonzalez de Orduna, R.; Lutter, G. [Institute for Reference Materials and Measurements (IRMM), Retieseweg 111, B-2440 Geel (Belgium); Vermaercke, P. [SCK-CEN, Boeretang, B-2400 Mol (Belgium); Huber, A.; Schweer, B.; Esser, G.; Biel, W. [Forschungszentrum Juelich GmbH, Institut fuer Plasmaphysik, EURATOM-Assoziation, Trilateral Euregio Cluster, D-52425 Juelich (Germany)

2012-10-15T23:59:59.000Z

464

Idaho Explosives Detection System: Development and Enhancements  

SciTech Connect (OSTI)

The Idaho Explosives Detection System (IEDS) was developed at the Idaho National Laboratory (INL) to respond to threats imposed by delivery trucks carrying bulk explosives into military bases. The system consists of two racks, one on each side of a subject vehicle. Each rack includes a neutron generator and an array of sodium iodide (NaI) detectors. The two neutron generators are pulsed and synchronized. A computer connects to the system by Ethernet and is able to control the system remotely. The system was developed to detect bulk explosives in a medium size truck within a 5-minute measurement time. In 2004, a full-scale prototype IEDS system was built for testing and continued development. System performance was successfully tested using different types of real explosives with a variety of cargo at the INL from November 2005 through February 2006. Recently, the first deployable prototype system was constructed and shipped to Wright-Patterson Air Force Base in Ohio and will be in operation by March 2007. The capability of passively detecting radiological material within a delivery truck has also been added.

Edward L Reber; Larry G. Blackwood; Andrew J. Edwards; Ann E. Egger; Paul J. Petersen

2007-12-01T23:59:59.000Z

465

Novelty Detection in and Between Different Modalities  

SciTech Connect (OSTI)

Our general aim is to reflect the advances in artificial intelligence and cognitive science fields to space exploration studies such that next generation space rovers can benefit from these advances. We believe next generation space rovers can benefit from the studies related to employing conceptual representations in generating structured thought. This way, rovers need not be equipped with all necessary steps of an action plan to execute in space exploration but they can autonomously form representations of their world and reason on them to make intelligent decision. As part of this approach, autonomous novelty detection is an important feature of next generation space rovers. This feature allows a rover to make further decisions about exploring a rock sample more closely or not and on its own. This way, a rover will use less of its time for communication between the earth and itself and more of its time for achieving its assigned tasks in space. In this paper, we propose an artificial neural network based novelty detection mechanism that next generation space rovers can employ as part of their intelligence. We also present an implementation of such a mechanism and present its reliability in detecting novelty.

Veflingstad, Henning [Computer Science Department, Norwegian University of Science and Technology, Trondheim (Norway); Yildirim, Sule [Computer Science Department, Hedmark University College, 2451 Rena (Norway)

2008-01-21T23:59:59.000Z

466

Apoptotic detection methods — from morphology to gene  

Science Journals Connector (OSTI)

To date, many terms have been given for cell death and forgotten before they became widely accepted. Most researchers studying cell death use some terms for cell death that have survived over centuries and regard apoptosis and programmed cell death (PCD), and necrosis and oncosis as synonymous. The different terminologies used for cell death depending on the preference of researchers sometimes cause confusion in the study of apoptosis. The study of apoptosis was first based on cell morphology using transmission electron microscopy (TEM): chromatin condensation, cellular shrinkage, budding and apoptotic body formation. Recently, marked progress in biochemistry, molecular biology and genetics provided researchers of apoptosis various tools for apoptotsis detection, such as the terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-biotin nick end-labeling (TUNEL) method, agarose gel electrophoresis using extracted DNA, staining methods using fluorescence dyes, and flow cytometry. This review focuses on the following topics: history of the study of cell death and its classification, apoptosis-related proteins and their signal pathways, morphological, biochemical and molecular biological methods of apoptosis detection, and the transcriptional regulation of bcl-2 using the real-time Southwestern method and cancer gene therapy. In addition, the merits and demerits of the above-mentioned apoptosis detection methods are discussed.

Yoshinori Otsuki; Zhonglian Li; Masa-Aki Shibata

2003-01-01T23:59:59.000Z

467

Scientists train honeybees to detect explosives  

ScienceCinema (OSTI)

Members of the Los Alamos National Laboratory Stealthy Insect Sensor Project team have been able to harness the honeybee's exceptional olfactory sense by using the bees' natural reaction to nectar, a proboscis extension reflex (sticking out their tongue) to record an unmistakable response to a scent. Using Pavlovian techniques, researchers were able to train the bees to give a positive detection response via the PER when exposed to vapors from TNT, C4, and TATP explosives. The Stealthy Insect Sensor Project was born out of a global threat from the growing use of improvised explosive devices or IEDs, especially those that present a critical vulnerability for American military troops in Iraq and Afghanistan, and as an emerging danger for civilians worldwide. Current strategies to detect explosives are expensive and, in the case of trained detection dogs, too obtrusive to be used very discreetly. With bees however, they are small and discreet, offering the element of surprise. They're also are inexpensive to maintain and even easier to train than dogs. As a result of this need, initial funding for the work was provided by a development grant from the Defense Advanced Research Projects Agency.

None

2014-07-24T23:59:59.000Z

468

Detection of radioactive materials at Astrakhan  

SciTech Connect (OSTI)

Astrakhan is the major Russian port on the Caspian Sea. Consequently, it is the node for significant river traffic up the Volga, as well as shipments to and from other seaports on the Caspian Sea. The majority of this latter trade across the Caspian Sea is with Iran. The Second Line of Defense and RF SCC identified Astrakhan as one of the top priorities for upgrading with modern radiation detection equipment. The purpose of the cooperative effort between RF SCC and DOE at Astrakhan is to provide the capability through equipment and training to monitor and detect illegal shipments of nuclear materials through Astrakhan. The first facility was equipped with vehicle and rail portal monitoring systems. The second facility was equipped with pedestrian, vehicle and rail portal monitoring systems. A second phase of this project will complete the equipping of Astrakhan by providing additional rail and handheld systems, along with completion of video systems. Associated with both phases is the necessary equipment and procedural training to ensure successful operation of the equipment in order to detect and deter illegal trafficking in nuclear materials. The presentation will described this project and its overall relationship to the Second Line of Defense Program.

Cantut, L; Dougan, A; Hemberger, P; Kravenchenko, Gromov, A; Martin, D; Pohl, B; Richardson, J H; Williams, H; York, R; Zaitsev, E

1999-07-01T23:59:59.000Z

469

Method for detection of extremely low concentration  

DOE Patents [OSTI]

An ultratrace detector system for hand-held gas chromatography having high sensitivity, for example, to emissions generated during production of weapons, biological compounds, drugs, etc. The detector system is insensitive to water, air, helium, argon, oxygen, and CO.sub.2. The detector system is basically composed of a hand-held capillary gas chromatography (GC), an insulated heated redox-chamber, a detection chamber, and a vapor trap. For example, the detector system may use gas phase redox reactions and spectral absorption of mercury vapor. The gas chromatograph initially separates compounds that percolate through a bed of heated mercuric oxide (HgO) in a silica--or other metal--aerogel material which acts as an insulator. Compounds easily oxidized by HgO liberate atomic mercury that subsequently pass through a detection chamber which includes a detector cell, such as quartz, that is illuminated with a 254 nm ultra-violet (UV) mercury discharge lamp which generates the exact mercury absorption bands that are used to detect the liberated mercury atoms. Atomic mercury strongly absorbs 254 nm energy is therefore a specific signal for reducing compounds eluting from the capillary GC, whereafter the atomic mercury is trapped for example, in a silicon-aerogel trap.

Andresen, Brian D. (Livermore, CA); Miller, Fred S. (Bethal Island, CA)

2002-01-01T23:59:59.000Z

470

High Energy Polarization of Blazars : Detection Prospects  

E-Print Network [OSTI]

Emission from blazar jets in the ultraviolet, optical, and infrared is polarized. If these low-energy photons were inverse-Compton scattered, the upscattered high-energy photons retain a fraction of the polarization. Current and future X-ray and gamma-ray polarimeters such as INTEGRAL-SPI, PoGOLITE, X-Calibur, Gamma-Ray Burst Polarimeter, GEMS-like missions, ASTRO-H, and POLARIX have the potential to discover polarized X-rays and gamma-rays from blazar jets for the first time. Detection of such polarization will open a qualitatively new window into high-energy blazar emission; actual measurements of polarization degree and angle will quantitatively test theories of jet emission mechanisms. We examine the detection prospects of blazars by these polarimetry missions using examples of 3C 279, PKS 1510-089, and 3C 454.3, bright sources with relatively high degrees of low-energy polarization. We conclude that while balloon polarimeters will be challenged to detect blazars within reasonable observational times (wit...

Chakraborty, Nachiketa; Fields, Brian

2015-01-01T23:59:59.000Z

471

Scientists train honeybees to detect explosives  

SciTech Connect (OSTI)

Members of the Los Alamos National Laboratory Stealthy Insect Sensor Project team have been able to harness the honeybee's exceptional olfactory sense by using the bees' natural reaction to nectar, a proboscis extension reflex (sticking out their tongue) to record an unmistakable response to a scent. Using Pavlovian techniques, researchers were able to train the bees to give a positive detection response via the PER when exposed to vapors from TNT, C4, and TATP explosives. The Stealthy Insect Sensor Project was born out of a global threat from the growing use of improvised explosive devices or IEDs, especially those that present a critical vulnerability for American military troops in Iraq and Afghanistan, and as an emerging danger for civilians worldwide. Current strategies to detect explosives are expensive and, in the case of trained detection dogs, too obtrusive to be used very discreetly. With bees however, they are small and discreet, offering the element of surprise. They're also are inexpensive to maintain and even easier to train than dogs. As a result of this need, initial funding for the work was provided by a development grant from the Defense Advanced Research Projects Agency.

None

2008-03-21T23:59:59.000Z

472

LSST: Comprehensive NEO Detection, Characterization, and Orbits  

E-Print Network [OSTI]

(Abridged) The Large Synoptic Survey Telescope (LSST) is currently by far the most ambitious proposed ground-based optical survey. Solar System mapping is one of the four key scientific design drivers, with emphasis on efficient Near-Earth Object (NEO) and Potentially Hazardous Asteroid (PHA) detection, orbit determination, and characterization. In a continuous observing campaign of pairs of 15 second exposures of its 3,200 megapixel camera, LSST will cover the entire available sky every three nights in two photometric bands to a depth of V=25 per visit (two exposures), with exquisitely accurate astrometry and photometry. Over the proposed survey lifetime of 10 years, each sky location would be visited about 1000 times. The baseline design satisfies strong constraints on the cadence of observations mandated by PHAs such as closely spaced pairs of observations to link different detections and short exposures to avoid trailing losses. Equally important, due to frequent repeat visits LSST will effectively provide its own follow-up to derive orbits for detected moving objects. Detailed modeling of LSST operations, incorporating real historical weather and seeing data from LSST site at Cerro Pachon, shows that LSST using its baseline design cadence could find 90% of the PHAs with diameters larger than 250 m, and 75% of those greater than 140 m within ten years. However, by optimizing sky coverage, the ongoing simulations suggest that the LSST system, with its first light in 2013, can reach the Congressional mandate of cataloging 90% of PHAs larger than 140m by 2020.

Z. Ivezic; J. A. Tyson; M. Juric; J. Kubica; A. Connolly; F. Pierfederici; A. W. Harris; E. Bowell; the LSST Collaboration

2007-01-17T23:59:59.000Z

473

Improved Fission Neutron Data Base for Active Interrogation of Actinides  

SciTech Connect (OSTI)

This project will develop an innovative neutron detection system for active interrogation measurements. Many active interrogation methods to detect fissionable material are based on the detection of neutrons from fission induced by fast neutrons or high-energy gamma rays. The energy spectrum of the fission neutrons provides data to identify the fissionable isotopes and materials such as shielding between the fissionable material and the detector. The proposed path for the project is as follows. First, the team will develop new neutron detection systems and algorithms by Monte Carlo simulations and bench-top experiments. Next, They will characterize and calibrate detection systems both with monoenergetic and white neutron sources. Finally, high-fidelity measurements of neutron emission from fissions induced by fast neutrons will be performed. Several existing fission chambers containing U-235, Pu-239, U-238, or Th-232 will be used to measure the neutron-induced fission neutron emission spectra. The challenge for making confident measurements is the detection of neutrons in the energy ranges of 0.01 – 1 MeV and above 8 MeV, regions where the basic data on the neutron energy spectrum emitted from fission is least well known. In addition, improvements in the specificity of neutron detectors are required throughout the complete energy range: they must be able to clearly distinguish neutrons from other radiations, in particular gamma rays and cosmic rays. The team believes that all of these challenges can be addressed successfully with emerging technologies under development by this collaboration. In particular, the collaboration will address the area of fission neutron emission spectra for isotopes of interest in the advanced fuel cycle initiative (AFCI).

Pozzi, Sara; Czirr, J. Bart; Haight, Robert; Kovash, Michael; Tsvetkov, Pavel

2013-11-06T23:59:59.000Z

474

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

475

Energy Conservation Contract (4 activities)  

Broader source: Energy.gov [DOE]

Students learn about saving energy and encourage their families to conserve by completing the following activities

476

Macroeconomic Activity Module  

Gasoline and Diesel Fuel Update (EIA)

This page intentionally left blank This page intentionally left blank 19 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook2011 Macroeconomic Activity Module The Macroeconomic Activity Module (MAM) represents the interaction between the U.S. economy as a whole and energy markets. The rate of growth of the economy, measured by the growth in gross domestic product (GDP) is a key determinant of the growth in demand for energy. Associated economic factors, such as interest rates and disposable income, strongly influence various elements of the supply and demand for energy. At the same time, reactions to energy markets by the aggregate economy, such as a slowdown in economic growth resulting from increasing energy prices, are also reflected in this module.

477

Active DOE Technical Standards  

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

Active DOE Technical Standards Active DOE Technical Standards Document Number Document Title Responsible SLM DOE-HDBK-1001-96 DOE-HDBK-1002-96 DOE-HDBK-1003-96 DOE-HDBK-1010-92 DOE-HDBK-1011/1-92 DOE-HDBK-1011/2-92 DOE-HDBK-1011/3-92 DOE-HDBK-1011/4-92 DOE-HDBK-1012/1-92 DOE-HDBK-1012/2-92 DOE-HDBK-1012/3-92 DOE-HDBK-1013/1-92 DOE-HDBK-1013/2-92 DOE-HDBK-1014/1-92 DOE-HDBK-1014/2-92 DOE-HDBK-1015/1-93

478

KPA Activity Number  

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

supports CMM-SW Level 2 supports CMM-SW Level 2 Mapping of the DOE Systems Engineering Methodology to the Software Engineering Institute (SEI) Software Capability Maturity Model (CMM- SW) level 2. Date: September 2002 Page 1 KPA Activity Number KPA Activity SEM Section SME Work Product SQSE Web Site http://cio.doe.gov/sqse REQUIREMENTS MANAGEMENT RM-1 The software engineering group reviews the allocated requirements before they are incorporated in the software project. Chapter 3.0 * Develop High-Level Project Requirements Chapter 4.0 * Establish Functional Baseline * Project Plan * Requirements Specification Document * Requirements Management awareness * Defining Project Requirements RM-2 The software engineering group uses the allocated requirements as the basis for

479

2004 NSLS Activity Report  

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

NatioNal NatioNal SyNchrotroN light Source activity report 2004 BNL 73577 National Synchrotron Light Source Activity Report 2004 BNL-73577-2005 UC400 (General Energy Research) 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, nor any of their contractors, subcontractors, or 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 commerical product, process, or service by trade name, trademark,

480

Myofilament length dependent activation  

SciTech Connect (OSTI)

The Frank-Starling law of the heart describes the interrelationship between end-diastolic volume and cardiac ejection volume, a regulatory system that operates on a beat-to-beat basis. The main cellular mechanism that underlies this phenomenon is an increase in the responsiveness of cardiac myofilaments to activating Ca{sup 2+} ions at a longer sarcomere length, commonly referred to as myofilament length-dependent activation. This review focuses on what molecular mechanisms may underlie myofilament length dependency. Specifically, the roles of inter-filament spacing, thick and thin filament based regulation, as well as sarcomeric regulatory proteins are discussed. Although the 'Frank-Starling law of the heart' constitutes a fundamental cardiac property that has been appreciated for well over a century, it is still not known in muscle how the contractile apparatus transduces the information concerning sarcomere length to modulate ventricular pressure development.

de Tombe, Pieter P.; Mateja, Ryan D.; Tachampa, Kittipong; Mou, Younss Ait; Farman, Gerrie P.; Irving, Thomas C. (IIT); (Loyola)

2010-05-25T23:59:59.000Z

Note: This page contains sample records for the topic "detectable activity mda" 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

Active microchannel heat exchanger  

DOE Patents [OSTI]

The present invention is an active microchannel heat exchanger with an active heat source and with microchannel architecture. The microchannel heat exchanger has (a) an exothermic reaction chamber; (b) an exhaust chamber; and (c) a heat exchanger chamber in thermal contact with the exhaust chamber, wherein (d) heat from the exothermic reaction chamber is convected by an exothermic reaction exhaust through the exhaust chamber and by conduction through a containment wall to the working fluid in the heat exchanger chamber thereby raising a temperature of the working fluid. The invention is particularly useful as a liquid fuel vaporizer and/or a steam generator for fuel cell power systems, and as a heat source for sustaining endothermic chemical reactions and initiating exothermic reactions.

Tonkovich, Anna Lee Y. (Pasco, WA) [Pasco, WA; Roberts, Gary L. (West Richland, WA) [West Richland, WA; Call, Charles J. (Pasco, WA) [Pasco, WA; Wegeng, Robert S. (Richland, WA) [Richland, WA; Wang, Yong (Richland, WA) [Richland, WA

2001-01-01T23:59:59.000Z

482

Evaluating an experimental setup for pipe leak detection  

E-Print Network [OSTI]

An experimental setup with 4 inch inner diameter PVC pipe modules is designed to mimic a real life piping system in which to test possible leak detection mechanisms. A model leak detection mechanism is developed which ...

Garay, Luis I. (Luis Ignacio)

2010-01-01T23:59:59.000Z

483

CODED SPECTROSCOPY FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA  

E-Print Network [OSTI]

ABSTRACT CODED SPECTROSCOPY FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA by Scott Thomas Mc FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA by Scott Thomas McCain Department of Electrical

484

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.

485

Failure Detection with Booting in Partially Synchronous Systems  

E-Print Network [OSTI]

Failure Detection with Booting in Partially Synchronous Systems Josef Widder1 , G´erard Le Lann2 implementation with respect to failure detection time, but also works during the system booting phase. 1

486

Gearbox Typical Failure Modes, Detection, and Mitigation Methods (Presentation)  

SciTech Connect (OSTI)

This presentation was given at the AWEA Operations & Maintenance and Safety Seminar and focused on what the typical gearbox failure modes are, how to detect them using detection techniques, and strategies that help mitigate these failures.

Sheng, S.

2014-01-01T23:59:59.000Z

487

SENSING THE ENVIRONMENT Detection and Generation of Electric Signals  

E-Print Network [OSTI]

SENSING THE ENVIRONMENT Detection and Generation of Electric Signals Contents Detection and Generation of Electric Signals in Fishes: An Introduction Morphology of Electroreceptive Sensory Organs Electrolocation Electric Organs Generation of Electric Signals Development of Electroreceptors and Electric

488

Improved Method for Detection of Vibrio parahaemolyticus in Seafood  

Science Journals Connector (OSTI)

...Detection of Vibrio parahaemolyticus in Seafood Yukiko Hara-Kudo Tokuhiro Nishina Hiroshi...for detecting Vibrio parahaemolyticus in seafoods using enrichment and plating onto a chromogenic...frequently from naturally contaminated seafood samples using the chromogenic agar than...

Yukiko Hara-Kudo; Tokuhiro Nishina; Hiroshi Nakagawa; Hirotaka Konuma; Junko Hasegawa; Susumu Kumagai

2001-12-01T23:59:59.000Z

489

Optical techniques for detecting and identifying biological-warfare agents  

E-Print Network [OSTI]

Rapid and accurate detection and identification of biological agents is an objective of various national security programs. Detection in general is difficult owing to natural clutter and anticipated low concentrations of ...

Greenwood, Darryl P.

490

A comparison of plagiarism detection tools Jurriaan Hage  

E-Print Network [OSTI]

A comparison of plagiarism detection tools Jurriaan Hage Peter Rademaker Nik`e van Vugt Technical detection tools Jurriaan Hage Peter Rademaker Nik`e van Vugt Abstract In this paper we compare five tools

Utrecht, Universiteit

491

AUTOMATIC VARIABLE VENTILATION CONTROL SYSTEMS BASED ON AIR QUALITY DETECTION  

E-Print Network [OSTI]

Control Systems Based on Air Quality Detection Isaac Turiel,HVAC CONTROL SYSTEM BASED ON AIR QUALITY SENSING To Zl)(lecontrol systems based on air quality detection Isaac Turiel,

Turiel, Isaac

2011-01-01T23:59:59.000Z

492

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

493

Detection and Production of Methane Hydrate  

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

July-September 2007 July-September 2007 Detection and Production of Methane Hydrate Submitted by: Rice University University of Houston George J. Hirasaki Department of Chemical and Biomolecular Engineering Rice University - MS 362 6100 Main St. Houston, TX 77251-1892 Phone: 713-348-5416; FAX: 713-348-5478; Email: gjh@rice.edu Prepared for: United States Department of Energy National Energy Technology Laboratory December, 2007 Office of Fossil Energy Table of Contents DOE Methane Hydrate Program Peer Review.................................................. 3 Task 5: Carbon Inputs and Outputs to Gas Hydrate Systems ........................... 3 Task 6: Numerical Models for Quantification of Hydrate and Free Gas Accumulations....................................................................................................

494

Entanglement detection in hybrid optomechanical systems  

SciTech Connect (OSTI)

We study a device formed by a Bose-Einstein condensate (BEC) coupled to the field of a cavity with a moving end mirror and find a working point such that the mirror-light entanglement is reproduced by the BEC-light quantum correlations. This provides an experimentally viable tool for inferring mirror-light entanglement with only a limited set of assumptions. We prove the existence of tripartite entanglement in the hybrid device, persisting up to temperatures of a few milli-Kelvin, and discuss a scheme to detect it.

De Chiara, Gabriele [Fisica Teorica: Informacio i Fenomens Quantics, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain); Paternostro, Mauro [Centre for Theoretical Atomic, Molecular and Optical Physics, School of Mathematics and Physics, Queen's University, Belfast BT7 1NN (United Kingdom); Palma, G. Massimo [NEST, Istituto Nanoscienze-CNR and Dipartimento di Fisica, Universita degli Studi di Palermo, Via Archirafi 36, I-90123 Palermo (Italy)

2011-05-15T23:59:59.000Z

495

Resonance ionization detection of combustion radicals  

SciTech Connect (OSTI)

Fundamental research on the combustion of halogenated organic compounds with emphasis on reaction pathways leading to the formation of chlorinated aromatic compounds and the development of continuous emission monitoring methods will assist in DOE efforts in the management and disposal of hazardous chemical wastes. Selective laser ionization techniques are used in this laboratory for the measurement of concentration profiles of radical intermediates in the combustion of chlorinated hydrocarbon flames. A new ultrasensitive detection technique, made possible with the advent of tunable VUV laser sources, enables the selective near-threshold photoionization of all radical intermediates in premixed hydrocarbon and chlorinated hydrocarbon flames.

Cool, T.A. [Cornell Univ., Ithaca, NY (United States)

1993-12-01T23:59:59.000Z

496

Method and apparatus for detecting explosives  

DOE Patents [OSTI]

A method and apparatus is provided for detecting explosives by thermal imaging. The explosive material is subjected to a high energy wave which can be either a sound wave or an electromagnetic wave which will initiate a chemical reaction in the explosive material which chemical reaction will produce heat. The heat is then sensed by a thermal imaging device which will provide a signal to a computing device which will alert a user of the apparatus to the possibility of an explosive device being present.

Moore, David Steven (Santa Fe, NM)

2011-05-10T23:59:59.000Z

497

Superconducting inductive displacement detection of a microcantilever  

E-Print Network [OSTI]

We demonstrate a superconducting inductive technique to measure the displacement of a micromechanical resonator. In our scheme, a type I superconducting microsphere is attached to the free end of a microcantilever and approached to the loop of a dc Superconducting Quantum Interference Device (SQUID) microsusceptometer. A local magnetic field as low as 100 $\\mu$T, generated by a field coil concentric to the SQUID, enables detection of the cantilever thermomechanical noise at $4.2$ K. The magnetomechanical coupling and the magnetic spring are in good agreement with image method calculations assuming pure Meissner effect. These measurements are relevant to recent proposals of quantum magnetomechanics experiments based on levitating superconducting microparticles.

Andrea Vinante

2014-05-14T23:59:59.000Z

498

Systems and methods for detecting and processing  

DOE Patents [OSTI]

Embodiments of the present invention provides systems and method for detecting. Sensing modules are provided in communication with one or more detectors. In some embodiments, detectors are provided that are sensitive to chemical, biological, or radiological agents. Embodiments of sensing modules include processing capabilities to analyze, perform computations on, and/or run models to predict or interpret data received from one or more detectors. Embodiments of sensing modules form various network configurations with one another and/or with one or more data aggregation devices. Some embodiments of sensing modules include power management functionalities.

Johnson, Michael M. (Livermore, CA); Yoshimura, Ann S. (Tracy, CA)

2006-03-28T23:59:59.000Z

499

Quantum Detection and Invisibility in Coherent Nanostructures  

SciTech Connect (OSTI)

We address quantum invisibility in the context of electronics in nanoscale quantum structures. In analogy with metamaterials, we use the freedom of design that quantum corrals provide and show that quantum mechanical objects can be hidden inside the corral, with respect to inelastic electron scattering spectroscopy in combination with scanning tunneling microscopy, and we propose a design strategy. A simple illustration of the invisibility is given in terms of an elliptic quantum corral containing a molecule, with a local vibrational mode, at one of the foci. Our work has implications to quantum information technology and presents new tools for nonlocal quantum detection and distinguishing between different molecules.

Fransson, J.

2010-04-28T23:59:59.000Z

500

PLUTINO DETECTION BIASES, INCLUDING THE KOZAI RESONANCE  

SciTech Connect (OSTI)

Because of their relative proximity within the trans-Neptunian region, the plutinos (objects in the 3:2 mean-motion resonance with Neptune) are numerous in flux-limited catalogs, and well-studied theoretically. We perform detailed modeling of the on-sky detection biases for plutinos, with special attention to those that are simultaneously in the Kozai resonance. In addition to the normal 3:2 resonant argument libration, Kozai plutinos also show periodic oscillations in eccentricity and inclination, coupled to the argument of perihelion ({omega}) oscillation. Due to the mean-motion resonance, plutinos avoid coming to pericenter near Neptune's current position in the ecliptic plane. Because Kozai plutinos are restricted to certain values of {omega}, perihelion always occurs out of the ecliptic plane, biasing ecliptic surveys against finding these objects. The observed Kozai plutino fraction f{sub koz}{sup obs} has been measured by several surveys, finding values between 8% and 25%, while the true Kozai plutino fraction f{sub koz}{sup true} has been predicted to be between 10% and 30% by different giant planet migration simulations. We show that f{sub koz}{sup obs} varies widely depending on the ecliptic latitude and longitude of the survey, so debiasing to find the true ratio is complex. Even a survey that covers most or all of the sky will detect an apparent Kozai fraction that is different from f{sub koz}{sup true}. We present a map of the on-sky plutino Kozai fraction that would be detected by all-sky flux-limited surveys. This will be especially important for the Panoramic Survey Telescope and Rapid Response System and Large Synoptic Survey Telescope projects, which may detect large numbers of plutinos as they sweep the sky. f{sub koz}{sup true} and the distribution of the orbital elements of Kozai plutinos may be a diagnostic of giant planet migration; future migration simulations should provide details on their resonant Kozai populations.

Lawler, S. M.; Gladman, B. [Department of Physics and Astronomy, 6224 Agricultural Road, University of British Columbia, Vancouver, BC V6T 1Z1 (Canada)

2013-07-01T23:59:59.000Z