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


1

Integrating Radio Frequency Identification (RFID) data with Electronic Data Interchange (EDI) business processes  

E-Print Network [OSTI]

Radio Frequency Identification (RFID) technology, an important component in the enterprise IT infrastructure, must be integrated into the legacy IT system. This thesis studies how RFID technology can be integrated into the ...

Chen, Yan (Yan Henry), 1976-

2005-01-01T23:59:59.000Z

2

An analysis of technical, process and organizational challenges confronting corporations implementing Radio Frequency Identification (RFID) technology projects  

E-Print Network [OSTI]

The purpose of the thesis is to identify practical challenges that are being addressed by companies implementing RFID related technologies in a variety of supply chain management applications. The test engagements undertaken ...

Roost, Nathan Christopher, 1975-

2004-01-01T23:59:59.000Z

3

Radio Frequency Identification : regulating information privacy protection  

E-Print Network [OSTI]

As applications of Radio Frequency Identification (RFID) become more profuse, the technology itself is stirring up some controversy. Due to its potential for amassing large amounts of information about both people and ...

Laufer, Deanna (Deanna Raquel)

2007-01-01T23:59:59.000Z

4

Enhancement of electromagnetic propagation through complex media for Radio Frequency Identification  

E-Print Network [OSTI]

In this thesis, I present and examine the fundamental limitations involved in Radio Frequency Identification (RFID) as well as provide a means to improve reader-tag communication in ultra high frequency RFID systems. The ...

Marti, Uttara P

2005-01-01T23:59:59.000Z

5

Survey paper: A survey of applications and requirements of unique identification systems and RFID techniques  

Science Journals Connector (OSTI)

The paper contains an overview of unique identification issues and of the various radio frequency identification techniques that are available now or will become available in the short term. The paper also compares RFID with traditional ID technologies. ... Keywords: Automatic identification, Data transfer, Identifier-based operations, Supply-chain

Elisabeth Ilie-Zudor; Zsolt Kemény; Fred van Blommestein; László Monostori; André van der Meulen

2011-04-01T23:59:59.000Z

6

Uniting Legislation with RFID Privacy-Enhancing Technologies Melanie R. Rieback, Bruno Crispo, Andrew S. Tanenbaum  

E-Print Network [OSTI]

response by modulating the request signal using one or more subcarrier frequencies. These RFID tags can do. Keywords: Radio frequency identification, security, privacy, data protection legislation, privacy- enhancing technologies. 1 Introduction Radio Frequency Identification (RFID) technology faces security

Tanenbaum, Andrew S.

7

Multi-tag RFID systems  

Science Journals Connector (OSTI)

Successful object identification is the primary objective of Radio Frequency Identification (RFID) technology. Yet, a recent major study by Wal-Mart has shown that object detection probability can be as low as 66%. We propose ... Keywords: RFID tags, collision avoidance, illegal deforestation, multi-tags, patient safety, radio frequency identification, reliability, security, tag detection, tag receptivity

Leonid Bolotnyy; Gabriel Robins

2007-12-01T23:59:59.000Z

8

Multilateral approaches to the mobile RFID security problem using web service  

Science Journals Connector (OSTI)

The mobile RFID (Radio Frequency Identification) is a new application to use mobile phone as RFID reader with a wireless technology and provides new valuable services to user by integrating RFID and ubiquitous sensor network infrastructure with mobile ...

Namje Park; Youjin Song; Dongho Won; Howon Kim

2008-04-01T23:59:59.000Z

9

An intelligent approach to handle False-Positive Radio Frequency Identification Anomalies  

Science Journals Connector (OSTI)

Radio Frequency Identification RFID technology allows wireless interaction between tagged objects and readers to automatically identify large groups of items. This technology is widely accepted in a number of application domains, however, it suffers ... Keywords: Bayesian Network, False-Positive Anomaly, Neural Network, Non-Monotonic Reasoning, Radio Frequency Identification --Rfid

Peter Darcy; Bela Stantic; Abdul Sattar

2011-11-01T23:59:59.000Z

10

Mobile RFID Security Issues -ICU 1 SCIS 2006: The 2006 Symposium on Cryptography and Information Security  

E-Print Network [OSTI]

Mobile RFID Security Issues - ICU 1 SCIS 2006: The 2006 Symposium on Cryptography and Information Engineers Mobile RFID Security Issues Divyan M. Konidala, Kwangjo Kim Cryptology and Information Security #12;Mobile RFID Security Issues - ICU 2 RFID Technology (1/2) Radio Frequency Identification (RFID

Kim, Kwangjo

11

Relationship between Frequency of RFID Tags and Its Ability to Penetrate Fresh Concrete  

E-Print Network [OSTI]

, which is capable of transmitting information wirelessly. Previous research implemented using ultra high frequency RFID tags embedded in fresh concrete found that water could be the impediment for transmitting RFID signal from within concrete during early...

Sridharan, Rajasekaran

2011-08-08T23:59:59.000Z

12

Defining Strong Privacy for RFID and Stephen A. Weis2  

E-Print Network [OSTI]

, widespread adoption of retail RFID could raise privacy concerns for everyday consumers. Briefly, RFID systemsDefining Strong Privacy for RFID Ari Juels1 and Stephen A. Weis2 1 RSA Laboratories, Bedford, MA April 2006 Abstract. In this work, we consider privacy in Radio Frequency IDentification (RFID) systems

13

Preserving Privacy in RFID Deployment RVSOcc0401  

E-Print Network [OSTI]

Preserving Privacy in RFID Deployment RVS­Occ­04­01 RVS, Faculty of Technology, University that can preserve privacy. Background RFID technology has its roots in early ``friend or foe'' detection of Bielefeld Jan E. Hennig # Bielefeld, 2004­03­23 Radio Frequency Identification, RFID, is an item

Ladkin, Peter B.

14

Logo-Antenna Based RFID Tags for Advertising Application Khaled ElMahgoub 1  

E-Print Network [OSTI]

Logo-Antenna Based RFID Tags for Advertising Application Khaled ElMahgoub 1 , Tamer Elsherbeni 1 the basis of using radio frequency identification (RFID) tags for advertisement. Two RFID tags that apply. This work demonstrates the applicapability and design flexibility of RFID tags for many advertising

Elsherbeni, Atef Z.

15

RADIO FREQUENCY IDENTIFICATION DEVICES: EFFECTIVENESS IN IMPROVING SAFEGUARDS AT GAS-CENTRIFUGE URANIUM-ENRICHMENT PLANTS.  

SciTech Connect (OSTI)

Recent advances in radio frequency identification devices (RFIDs) have engendered a growing interest among international safeguards experts. Potentially, RFIDs could reduce inspection work, viz. the number of inspections, number of samples, and duration of the visits, and thus improve the efficiency and effectiveness of international safeguards. This study systematically examined the applications of RFIDs for IAEA safeguards at large gas-centrifuge enrichment plants (GCEPs). These analyses are expected to help identify the requirements and desirable properties for RFIDs, to provide insights into which vulnerabilities matter most, and help formulate the required assurance tests. This work, specifically assesses the application of RFIDs for the ''Option 4'' safeguards approach, proposed by Bruce Moran, U. S. Nuclear Regulatory Commission (NRC), for large gas-centrifuge uranium-enrichment plants. The features of ''Option 4'' safeguards include placing RFIDs on all feed, product and tails (F/P/T) cylinders, along with WID readers in all FP/T stations and accountability scales. Other features of Moran's ''Option 4'' are Mailbox declarations, monitoring of load-cell-based weighing systems at the F/P/T stations and accountability scales, and continuous enrichment monitors. Relevant diversion paths were explored to evaluate how RFIDs improve the efficiency and effectiveness of safeguards. Additionally, the analysis addresses the use of RFIDs in conjunction with video monitoring and neutron detectors in a perimeter-monitoring approach to show that RFIDs can help to detect unidentified cylinders.

JOE,J.

2007-07-08T23:59:59.000Z

16

In-Born Radio Frequency Identification Devices for Safeguards Use at Gas-Centrifuge Enrichment Plants  

SciTech Connect (OSTI)

Global expansion of nuclear power has made the need for improved safeguards measures at Gas Centrifuge Enrichment Plants (GCEPs) imperative. One technology under consideration for safeguards applications is Radio Frequency Identification Devices (RFIDs). RFIDs have the potential to increase IAEA inspector"s efficiency and effectiveness either by reducing the number of inspection visits necessary or by reducing inspection effort at those visits. This study assesses the use of RFIDs as an integral component of the "Option 4" safeguards approach developed by Bruce Moran, U.S. Nuclear Regulatory Commission (NRC), for a model GCEP [1]. A previous analysis of RFIDs was conducted by Jae Jo, Brookhaven National Laboratory (BNL), which evaluated the effectiveness of an RFID tag applied by the facility operator [2]. This paper presents a similar evaluation carried out in the framework of Jo’s paper, but it is predicated on the assumption that the RFID tag is applied by the manufacturer at the birth of the cylinder, rather than by the operator. Relevant diversion scenarios are examined to determine if RFIDs increase the effectiveness and/ or efficiency of safeguards in these scenarios. Conclusions on the benefits offered to inspectors by using in-born RFID tagging are presented.

Ward,R.; Rosenthal,M.

2009-07-12T23:59:59.000Z

17

Preserving Privacy in RFID Deployment RVS-Occ-04-01  

E-Print Network [OSTI]

Preserving Privacy in RFID Deployment RVS-Occ-04-01 RVS, Faculty of Technology, University that can preserve privacy. Background RFID technology has its roots in early "friend or foe" detection of Bielefeld Jan E. Hennig Bielefeld, 2004-03-23 Radio Frequency Identification, RFID, is an item

Ladkin, Peter B.

18

Making the `MOST' out of RFID technology: a research agenda for the study of the adoption, usage and impact of RFID  

Science Journals Connector (OSTI)

Radio frequency identification (RFID) technology dramatically increases the ability of the organization to acquire a vast array of data about the location and properties of any entity that can be physically tagged ... Keywords: Business value, Diffusion of innovations, IT impacts, Information technology, RFID, Radio frequency identification, Technology adoption

John Curtin; Robert J. Kauffman; Frederick J. Riggins

2007-06-01T23:59:59.000Z

19

Radio Frequency Id and Privacy with Information Goods Nathan Gooda1  

E-Print Network [OSTI]

of Computing] General Terms Security, Legal Aspects. Keywords RFID, privacy, information goods, law, policy. 1. NORMS AND LAW This paper examines the privacy impacts of using radio frequency identification (RFID privacy. Put simply, in the RFID-enabled world, anyone with an RFID reader can potentially discover

Wagner, David

20

Development of power facility management services using RFID/USN  

Science Journals Connector (OSTI)

In the electric power industry, there are many research projects to stabilise the power and increase the efficiency using ubiquitous technology. Many power utilities control and supervise the transmission line of energy to avoid power failures. In this ... Keywords: #, 47, RFID, RFID&, USN, cable joint, electric power industry, power facility management, radio frequency identification, service framework, ubiquitous sensor networks, wireless networks

Young-Il Kim; Jae-Ju Song; Jin-Ho Shin; Bong-Jae Yi; Hoon Choi

2009-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Distributed coordination of mobile robots using RFID technology  

Science Journals Connector (OSTI)

Radio Frequency Identification is a promising technology for realizing distributed knowledge databases of the further. The proposed RFID database solution provides a cheap and feasible solution for indoor navigation, long term information storage and ... Keywords: distributed knowledge, formal verification, intelligent agent, mobile robot, rfid, semantic web

Tanel Tammet; Jüri Vain; Alar Kuusik

2006-03-01T23:59:59.000Z

22

Radio frequency identification enabled wireless sensing for intelligent food logistics  

Science Journals Connector (OSTI)

...semi-passive ultrahigh frequency (UHF) RFID...functionalities, energy source, processing and storage capabilities...backscattering in high frequency (HF) or UHF...changes as a response to the varying...low-cost and energy-efficient under...

2014-01-01T23:59:59.000Z

23

Security threats on EPC based RFID systems J. G. Alfaro ,, M. Barbeau, and E. Kranakis  

E-Print Network [OSTI]

Security threats on EPC based RFID systems J. G. Alfaro ,, M. Barbeau, and E. Kranakis Abstract: We present an evaluation of threats on the Radio Frequency IDentification (RFID) system of the Electronic components due to the use of an insecure wireless channel. We analyze the threats according

Garcia-Alfaro, Joaquin

24

An Extensive Study of Slotted Aloha-Based RFID Anti-Collision Protocols  

E-Print Network [OSTI]

, Maheesha DeSilva, Kavindya Deegala, Suresh Ramamoorthy Abstract--Radio frequency identification (RFID responses when queried by a reader that limits system performance significantly. Collisions bring extra delay, a waste of bandwidth, and extra energy consumption to the interrogation process of RFID

Namboodiri, Vinod

25

The value of RFID in transportation : from greater operational efficiency to collaborative transportation management  

E-Print Network [OSTI]

This paper assesses the value of Radio Frequency Identification (RFID) in the transportation forecasting, planning, and execution processes for truckload (TL) and less than truckload (LTL) services. The results show that ...

Guitton, Antoine, 1963-

2004-01-01T23:59:59.000Z

26

RFIDSim - A physical and logical layer simulation engine for passive RFID  

E-Print Network [OSTI]

Radio-frequency identification (RFID) poses a number of research challenges, such as interference mitigation, throughput optimization and security over the RF channel. A number of new approaches to address these issues ...

Sarma, Sanjay Emani

27

RFIDSim - A physical and logical layer simulation engine for passive RFID  

E-Print Network [OSTI]

adio-frequency identification (RFID) poses a number of research challenges, such as interference mitigation, throughput optimization and security over the RF channel. A number of new approaches to address these issues have ...

Floerkemeier, Christian

28

A technology roadmap for RFID adoption in supply chains  

Science Journals Connector (OSTI)

Radio Frequency Identification (RFID) brings a second source of information to enterprise management and adds to information conventionally shared among the various units within, and beyond an organisation's boundary. Fieldwork and case studies reveal the attitudes of organisations toward the sharing of information and the new technology. We propose a technology roadmap to prescribe the technological development necessary to support RFID adoption in supply chains as a three-phase adoption process. The advantages and issues of each phase of adoption are addressed. An analysis provides insight into the crucial factors that must be addressed to realise the benefits of RFID adoption.

Waiman Cheung; Sung-Chi Chu; Timon C. Du

2009-01-01T23:59:59.000Z

29

Radio Frequency Identification (RFID) Stakeholder Meeting Dallas, Texas  

E-Print Network [OSTI]

Discussion Points · Participants highlighted the need to establish performance criteria and business rules Associations, with assistance of EPA Region 6 and Texas Commission on Environmental Quality. · Texas of Enforcement and Compliance Assurance Davis Jones, U.S. EPA Office of Enforcement and Compliance Assurance

30

Contained nomadic information environments: Technology, organization, and environment influences on adoption of hospital RFID patient tracking  

Science Journals Connector (OSTI)

This paper reports on a case study of adoption of a contained nomadic information environment, exemplified by the use of Radio Frequency Identification (RFID) to keep track of hospital patients. The technology, organization, and environment (TOE) framework ... Keywords: Case study, Health care, Hospital, Nomadic information environments, Patient tracking, Qualitative research, Radio frequency identification

Qing Cao, Donald R. Jones, Hong Sheng

2014-03-01T23:59:59.000Z

31

2608 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL. 57, NO. 11, NOVEMBER 2008 Design of an RFID-Based Battery-Free  

E-Print Network [OSTI]

to explore sensor-enhanced radio frequency identification (RFID) applica- tions. WISP uses a 16-bit ultralow-power microcontroller to per- form sensing and computation while exclusively operating from harvested RF energy. Sensors transmitted from a long-range (UHF) RFID reader and communi- cate arbitrary multibit data in a single response

Herr, Hugh

32

Radio frequency identification enabled wireless sensing for intelligent food logistics  

Science Journals Connector (OSTI)

...Hoekstra, Bastien Chopard and Peter Coveney Radio frequency identification enabled wireless sensing for intelligent food logistics Zhuo Zou Qiang Chen Ismail Uysal Lirong Zheng Phil. Trans. R. Soc. A 372, 20130313 (13 June 2014; Published online...

2014-01-01T23:59:59.000Z

33

Argonne, Evigia finalize licensing agreement for next-gen RFID sensor  

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

See related See related New RFID technology tracks and monitors nuclear materials Argonne, Evigia finalize licensing agreement for next-gen RFID sensor technology By Angela Hardin * July 16, 2012 Tweet EmailPrint System enables monitoring, tracking and securing of nuclear material ANN ARBOR, Mich. and ARGONNE, Ill. (July 16, 2012)-Evigia Systems and the U.S. Department of Energy's (DOE) Argonne National Laboratory announced today that they have finalized a licensing agreement under which Argonne's patented, application-specific radio-frequency identification (RFID) sensor/seal technology and its custom-developed ARG-US software suite will be further developed and marketed by Evigia as a comprehensive nuclear and hazardous material handling solution. The system, jointly developed by Evigia and Argonne, adds sophisticated

34

Adversarial Model for Radio Frequency Identification Gildas Avoine  

E-Print Network [OSTI]

barcodes. One area of application for RFID tags is the management of stock and inventories in shops libraries in the United States have already adopted the RFID technology, e.g., the Santa Clara City Library]. The aim is to help customers to keep in touch wi

35

Radio-frequency identification could help reduce the spread of plant pathogens  

E-Print Network [OSTI]

frequency identification could help reduce the spread ofeconomic losses. It also helps control the Plant Protection

Luvisi, Andrea; Panattoni, Alessandra; Triolo, Enrico

2012-01-01T23:59:59.000Z

36

UTag: Long-range Ultra-wideband Passive Radio Frequency Tags  

SciTech Connect (OSTI)

Long-range, ultra-wideband (UWB), passive radio frequency (RF) tags are key components in Radio Frequency IDentification (RFID) system that will revolutionize inventory control and tracking applications. Unlike conventional, battery-operated (active) RFID tags, LLNL's small UWB tags, called 'UTag', operate at long range (up to 20 meters) in harsh, cluttered environments. Because they are battery-less (that is, passive), they have practically infinite lifetimes without human intervention, and they are lower in cost to manufacture and maintain than active RFID tags. These robust, energy-efficient passive tags are remotely powered by UWB radio signals, which are much more difficult to detect, intercept, and jam than conventional narrowband frequencies. The features of long range, battery-less, and low cost give UTag significant advantage over other existing RFID tags.

Dowla, F

2007-03-14T23:59:59.000Z

37

RFID Technology Creating Jobs, Impacting Americans With Increasing  

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

RFID Technology Creating Jobs, Impacting Americans With Increasing RFID Technology Creating Jobs, Impacting Americans With Increasing Frequency RFID Technology Creating Jobs, Impacting Americans With Increasing Frequency October 11, 2011 - 11:15am Addthis RFID technology is a prime example of how targeted Research & Development can enable the development of a core technology – making information mobile – that has commercial potential as far as the imagination can take you. RFID technology is a prime example of how targeted Research & Development can enable the development of a core technology - making information mobile - that has commercial potential as far as the imagination can take you. Liisa O'Neill Liisa O'Neill Former New Media Specialist, Office of Public Affairs What are the key facts? RFID technology is a prime example of how targeted Research &

38

Radio frequency identification enabled wireless sensing for intelligent food logistics  

Science Journals Connector (OSTI)

...MPRV.2006.15 ) 18 Law, MK , A Bermak, and HC Luong...and AP Chandrakasan. 2007 An ultra low energy 12-bit rate-resolution...and L-R Zheng. 2010 An ultra-low-cost RFID tag with 1...system. In IEEE Int. Conf. on Ultra-Wideband, pp. 1-4...

2014-01-01T23:59:59.000Z

39

Mobile and Ubiquitous Compu3ng RFID Basics  

E-Print Network [OSTI]

Mobile and Ubiquitous Compu3ng RFID Basics #12;· RFID principle(s) of opera3on #12;Component roles · High-frequency interface" ­ generates transmission power to activate tag" ­ modulates transmission/demodulates tag signal" · Control system" ­ control communication with tags" · anti

Roussos, George

40

RFID TECHNICAL TUTORIAL Dale R. Thompson  

E-Print Network [OSTI]

-cost passive RFID tags. EPC provides identification of the product to which the EPC tag is attached like system that will have a long-term impact on society. The three UHF passive tag standards supported detected in a restaurant or if a sufficiently powerful directed reader reads tags in a house or car

Thompson, Dale R.

Note: This page contains sample records for the topic "frequency identification rfid" 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

Encoding, application and association of radio frequency identification tags on high speed manufacturing lines  

E-Print Network [OSTI]

One of the entry points of radio frequency identification technology in supply chain applications is at the manufacturing line, after production, as packaged goods leave for the next link of the network of suppliers, ...

Fonseca, Herbert Moreti, 1973-

2004-01-01T23:59:59.000Z

42

2010 Raj JainCSE574sWashington University in St. Louis Radio FrequencyRadio Frequency  

E-Print Network [OSTI]

. Louis RFID ReadersRFID Readers Sends a pulse of radio energy and listens for tags response Readers may24-1 ©2010 Raj JainCSE574sWashington University in St. Louis Radio FrequencyRadio Frequency;24-3 ©2010 Raj JainCSE574sWashington University in St. Louis What is RFID?What is RFID? Radio Frequency

Jain, Raj

43

Enabling RFID Retail George Roussos  

E-Print Network [OSTI]

Enabling RFID Retail George Roussos Birkbeck College University of London The past two years have perspectives on RFID retail in the particular context of the European Union and attempt to identify the core issues that must be addressed to enable widely accepted deployment of RFID in retail. The discussion

Roussos, George

44

RFID and Privacy Marc Langheinrich  

E-Print Network [OSTI]

RFID and Privacy Marc Langheinrich Institute for Pervasive Computing, ETH Zurich, 8092 Zurich, Switzerland langhein@inf.ethz.ch Summary. RFID technology has become one of the most hotly debated ubiquitous and briefly evaluating the range of proposed technical RFID privacy solutions. It also attempts to put

45

Mobile RFID system for inventory automation  

E-Print Network [OSTI]

As RFID technology proliferates within the industry, more added value applications employing RFID technology are being created. One main application is inventory tracking where RFID technology is used to create a visibility ...

Ong, JinHock

2008-01-01T23:59:59.000Z

46

Secure Anonymous RFID Authentication Protocols Christy Chatmon  

E-Print Network [OSTI]

and scalable. Keywords: RFID, Authentication, Anonymity, Privacy, Availability, Scalability. 1 Introduction technology is to automatically identify objects that are contained in electromagnetic fields. RFID tags doSecure Anonymous RFID Authentication Protocols Christy Chatmon Computer & Information Sciences

Burmester, Mike

47

Frequency domain transfer function identification using the computer program SYSFIT  

SciTech Connect (OSTI)

Because the primary application of SYSFIT for BPA involves studying power system dynamics, this investigation was geared toward simulating the effects that might be encountered in studying electromechanical oscillations in power systems. Although the intended focus of this work is power system oscillations, the studies are sufficiently genetic that the results can be applied to many types of oscillatory systems with closely-spaced modes. In general, there are two possible ways of solving the optimization problem. One is to use a least-squares optimization function and to write the system in such a form that the problem becomes one of linear least-squares. The solution can then be obtained using a standard least-squares technique. The other method involves using a search method to obtain the optimal model. This method allows considerably more freedom in forming the optimization function and model, but it requires an initial guess of the system parameters. SYSFIT employs this second approach. Detailed investigations were conducted into three main areas: (1) fitting to exact frequency response data of a linear system; (2) fitting to the discrete Fourier transformation of noisy data; and (3) fitting to multi-path systems. The first area consisted of investigating the effects of alternative optimization cost function options; using different optimization search methods; incorrect model order, missing response data; closely-spaced poles; and closely-spaced pole-zero pairs. Within the second area, different noise colorations and levels were studied. In the third area, methods were investigated for improving fitting results by incorporating more than one system path. The following is a list of guidelines and properties developed from the study for fitting a transfer function to the frequency response of a system using optimization search methods.

Trudnowski, D.J.

1992-12-01T23:59:59.000Z

48

WISP: A Passively Powered UHF RFID Tag with Sensing and Computation Daniel J. Yeager,1,2  

E-Print Network [OSTI]

includes generating power from environmental sources[3], such as vibration, light, or human motion,[41 WISP: A Passively Powered UHF RFID Tag with Sensing and Computation Daniel J. Yeager,1,2 Alanson that is powered and read by a standards-compliant Ultra-High Frequency (UHF) RFID reader. The notable features

Herr, Hugh

49

RFID receiver apparatus and method  

DOE Patents [OSTI]

An RFID backscatter interrogator for transmitting data to an RFID tag, generating a carrier for the tag, and receiving data from the tag modulated onto the carrier, the interrogator including a single grounded-coplanar wave-guide circuit board and at least one surface mount integrated circuit supported by the circuit board.

Scott, Jeffrey Wayne (Pasco, WA)

2006-12-26T23:59:59.000Z

50

Long Range Passive UHF RFID System Using HVAC Ducts  

E-Print Network [OSTI]

INVITED P A P E R Long Range Passive UHF RFID System Using HVAC Ducts To provide a potential communications channel, HVAC ducts can function as electromagnetic waveguides; a 30-m read range has been-conditioning (HVAC) ducts as a potential communication channel between passive ultrahigh-frequency (UHF) radio

Hochberg, Michael

51

An Elliptic Curve Processor Suitable For RFID-Tags L. Batina1, J. Guajardo2, T. Kerins2, N. Mentens1, P. Tuyls2, and I. Verbauwhede1  

E-Print Network [OSTI]

of sight, introduces a privacy threat. While walking home with tagged items in their bags, consumers canAn Elliptic Curve Processor Suitable For RFID-Tags L. Batina1, J. Guajardo2, T. Kerins2, N. Mentens.Guajardo,Tim.Kerins,Pim.Tuyls}@philips.com Abstract. RFID-Tags are small devices used for identification purposes in many applications nowa- days

52

Practical Attacks on Proximity Identification Systems  

E-Print Network [OSTI]

DEFCON ­ eavesdropped RFID at 20 m Confusion ?? RFID type Definition of distances Experimental setup skimming) Relay Attacks Practical Attacks on Proximity Identification Systems ­ p. #12;"Proximity from distance dE Further considerations dRT , Reader Token communication dTR, Token Reader

Hancke, Gerhard

53

MAINTAINING PRIVACY IN RFID ENABLED ENVIRONMENTS  

E-Print Network [OSTI]

future. Yet, as RFID tags enter consumer households and threaten to identify their owners' belongingsMAINTAINING PRIVACY IN RFID ENABLED ENVIRONMENTS Proposal for a disable-model Sarah Spiekermann1 functionality into RFID tags. The present article argues that killing tags at the store exit is, however

Freytag, Johann-Christoph

54

How to Cheat at Deploying and Securing RFID  

Science Journals Connector (OSTI)

RFID is a method of remotely storing and receiving data using devices called RFID tags. RFID tags can be small adhesive stickers containing antennas that receive and respond to transmissions from RFID transmitters. RFID tags are used to identify and ... Keywords: Security

Frank Thornton

2007-12-01T23:59:59.000Z

55

Identification of Minority Ion-Cyclotron Emission during Radio Frequency Heating in the JET Tokamak  

Science Journals Connector (OSTI)

First measurements and identification of minority ion-cyclotron emission (MICE) during ICRF (H)D minority heating in the JET tokamak are presented. An inner wall radiofrequency (rf) probe shows the new single MICE spectral line, down-shifted from the heating frequency and appearing ?400 ms after the ICRH switch-on. The line is narrow (??/??0.04), characterized by the ion-cyclotron frequency of minority protons in the outer-edge midplane plasma and is observed irrespective of whether single or multifrequency ICRH is applied. The observations are consistent with the classical evolution and population of the plasma edge with ?3 MeV ICRH protons on orbits near the outboard limiters. Particle loss and energy filtering contribute to a local non-Maxwellian energetic ion distribution, which is susceptible to ion-cyclotron instability.

G. A. Cottrell

2000-03-13T23:59:59.000Z

56

Argonne, Evigia finalize licensing agreement for next-gen RFID...  

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

See related New RFID technology tracks and monitors nuclear materials Argonne, Evigia finalize licensing agreement for next-gen RFID sensor technology By Angela Hardin * July 16,...

57

"Did you pack your keys?" Smart Objects And Forgetfulness  

E-Print Network [OSTI]

of ten light-emitting diodes (LEDs), piezo and Radio Frequency Identification Reader (RFID) connected

Purver, Matthew

58

A Task-level Model for Optomotor Yaw Regulation in Drosophila Melanogaster: A Frequency-Domain System Identification Approach  

E-Print Network [OSTI]

-level locomotor behavior to a single-input­single-output system [4]­[6]. Optomotor yaw regulation has been studiedA Task-level Model for Optomotor Yaw Regulation in Drosophila Melanogaster: A Frequency-Domain System Identification Approach Eatai Roth1, Michael B. Reiser2, Michael H. Dickinson3, and Noah J. Cowan1

59

1 | P a g e Summary of Fish-Barge Interaction Research and Fixed Dual Frequency Identification Sonar  

E-Print Network [OSTI]

1 | P a g e Summary of Fish-Barge Interaction Research and Fixed Dual Frequency Identification of Engineers (USACE) and the U.S. Fish and Wildlife Service (USFWS) have conducted laboratory and field in the Chicago Sanitary and Ship Canal (CSSC) and the resulting impacts to fish behavior. The experiments

US Army Corps of Engineers

60

OpenTag: Privacy protection for RFID  

E-Print Network [OSTI]

Radio frequency identification's use in retail is good for pervasive computing, but raises considerable privacy issues. OpenTag programmable tags address privacy issues while remaining fully compatible with the supply-chain ...

Holtzman, Henry N.

Note: This page contains sample records for the topic "frequency identification rfid" 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

Power Margin Reduction in Linear passive UHF RFID tag arrays  

E-Print Network [OSTI]

penetration in a distributed Bragg reflector used in optical devices [12]. The structure of the distributed Bragg reflector consists of an alternating sequence of two materials of different optical impedances which can be treated as being similar to a tag... and Applications in Contactless Smart Cards and Identification, 2nd edition, New York, NY USA: Wiley, 2003, pp. 29-180, pp. 229-328. [2] United States Department of Defense Suppliers’ Passive RFID Information Guide, Version 15.0, pp. 20, [Online]. Avilable...

Zhang, Qi; Crisp, Michael; White, Ian H.; Penty, Richard V.

2014-07-17T23:59:59.000Z

62

On The Behaviour of Linear Dipole Antennas with Application to Passive Radio Frequency Identification Tags Operating at 869 MHz  

E-Print Network [OSTI]

distributions and read ranges. Also presented are modified dipole structures for optimising the electromagnetic energy launched by the reader. Data for the study are calculated using CST microwave studio which applies. Introduction. The current electronic product code (EPC) initiatives support a global deployment of RFID

Haddadi, Hamed

63

A frequency scanning method for the identification of harmonic instabilities in HVDC systems  

SciTech Connect (OSTI)

A Frequency Scanning Method is introduced in the paper to obtain a more accurate frequency characteristic for identifying harmonic instability in HVdc systems. An example of the application is used to identify the resonance frequencies in the CIGRE benchmark model. The paper shows that the Benchmark model is not tuned to the resonance frequency that it was designed for. Using the scanning method, the resonance frequency of the benchmark model may be shifted to demonstrate a simulation of core-saturation type instability.

Jiang, X.; Gole, A.M. [Univ. of Manitoba, Winnipeg, Manitoba (Canada). Dept. of Electrical and Computer Engineering] [Univ. of Manitoba, Winnipeg, Manitoba (Canada). Dept. of Electrical and Computer Engineering

1995-10-01T23:59:59.000Z

64

2006 Raj JainCSE574sWashington University in St. Louis Radio FrequencyRadio Frequency  

E-Print Network [OSTI]

18-1 ©2006 Raj JainCSE574sWashington University in St. Louis Radio FrequencyRadio Frequency;18-3 ©2006 Raj JainCSE574sWashington University in St. Louis What is RFID?What is RFID? ! Radio Frequency #. 96-bit block of read- only storage (ROM). " Read-write memory. " Tags may have embedded sensors (tire

Jain, Raj

65

RFID : ROI opportunities after the sunk cost  

E-Print Network [OSTI]

Currently many alternative options exist to satisfy the RFID mandate by Wal-Mart--tag cases at the exit doors, tag all cases at the supplier's warehouse docks, tag a certain section of the warehouse, etc. The big question ...

Simeonov, Teodor D., 1977-

2004-01-01T23:59:59.000Z

66

Enhancing RFID label production with atmospheric plasma treatment  

Science Journals Connector (OSTI)

RFID research and development requires technical expertise of ink and adhesive manufacturers, surface treatment and printing equipment manufacturers, package printers, and electronics firms. In this framework, a strong enhancement in production and quality ... Keywords: RFID labels, atmospheric plasma, labels, logistics

R. A. Wolf; A. Sparavigna; B. Montrucchio

2006-07-01T23:59:59.000Z

67

PAP: A Privacy and Authentication Protocol for Passive RFID Tags  

E-Print Network [OSTI]

PAP: A Privacy and Authentication Protocol for Passive RFID Tags Alex X. Liu LeRoy A. Bailey for RFID tags is necessary to ensure the privacy and authentication between each tag and their reader. In order to accomplish this, we propose PAP, a privacy and authentication protocol for passive RFID tags

Liu, Alex X.

68

Mobile RFID Applications and Security Konidala M. Divyan, Kwangjo Kim  

E-Print Network [OSTI]

information about RFID tagged items. As RFID tags, mobile phones can quickly identify them- selves in order, human-error prone, and time consuming inventory check, and also causes customers in a store to waitMobile RFID Applications and Security Challenges Konidala M. Divyan, Kwangjo Kim Information

Kim, Kwangjo

69

Untraceable RFID Tags via Insubvertible Encryption Giuseppe Ateniese  

E-Print Network [OSTI]

. This enables post-sale applica- tions of manufacturer-issued RFID tags while preserving the privacy of consumers. The functionality required of the RFID tags is minimal, namely that they be re-writable (many, Security. Keywords: Universal re-encryption, bilinear maps, RFID privacy. 1. INTRODUCTION "Smart tags

Amir, Yair

70

Privacy Enhancing Technology Concepts for RFID Technology Scrutinised  

E-Print Network [OSTI]

Privacy Enhancing Technology Concepts for RFID Technology Scrutinised Jan E. Hennig, Peter B)using RFID technology for tracking and profiling individual people. Privacy, data security and civil rights and compile a checklist against which we com- pare proposals to enhance RFID technology to gain privacy

Ladkin, Peter B.

71

A frequency domain model for 3 kV dc traction dc-side resonance identification  

SciTech Connect (OSTI)

Frequency-dependent effects in railway traction power systems arise from the impedance of substation and locomotive line filters and the traction line. Harmonic noise from traction drives and substations can excite resonances and produce overcurrent or overvoltage conditions at critical points in the network. In this paper, the harmonic feeding impedances of a 3 kV DC traction system seen from the rectifier substation, locomotive drive converter and pantograph terminals are presented. Several substation and locomotive filters are considered with a frequency-dependent traction line. Resonances attributed to the substation filter, locomotive filter and traction line are separate and distinct, the line introducing poles and zeros in the audio frequency (AF) range which vary in frequency and magnitude with locomotive position.

Hill, R.J. [Univ. of Bath (United Kingdom). School of Electronic and Electrical Engineering] [Univ. of Bath (United Kingdom). School of Electronic and Electrical Engineering; Fracchia, M.; Pozzobon, P.; Sciutto, G. [Univ. degli Studi di Genova (Italy). Dipt. di Ingegneria Elettrica] [Univ. degli Studi di Genova (Italy). Dipt. di Ingegneria Elettrica

1995-08-01T23:59:59.000Z

72

How to Build a Low-Cost, Extended-Range RFID Skimmer Ilan Kirschenbaum  

E-Print Network [OSTI]

can be used as a stand-alone RFID skimmer, to surreptitiously read the contents of simple RFID tags in a relay-attack, a "leech" can also be used as a stand-alone RFID skimmer, to surreptitiously read

73

222 Int. J. Internet Technology and Secured Transactions, Vol. 2, Nos. 3/4, 2010 Copyright 2010 Inderscience Enterprises Ltd.  

E-Print Network [OSTI]

to solve the scalability problem of previous protocols. Keywords: RFID security; tag cloning; tag privacy.1 Overview of RFID Radio frequency identification (RFID) is a mean to efficiently and quickly, auto-identify objects, and assets. With RFID technology, passive-RFID tags are attached to consumer items and these tags

Kim, Kwangjo

74

Self-calibration of RFID reader probabilities in a smart real-time factory  

Science Journals Connector (OSTI)

RFID technology is now widely used to identify, locate, track and monitor physical objects. However, the use of RFID technology in modern manufacturing has been limited because of the unreliability of RFID devices. In addition to this, where it is used, ... Keywords: RFID, middleware, self-configuration, smart factory

Bilal Hameed; Farhan Rashid; Frank Dürr; Kurt Rothermel

2012-06-01T23:59:59.000Z

75

RFID impact in supply chain : innovation in demand planning and customer fulfillment  

E-Print Network [OSTI]

(cont.) hand inventory. The key of RFID implementation is to broaden the collaboration with retailers.

Mei, Qiang Rose, 1973-

2004-01-01T23:59:59.000Z

76

Modeling Privacy for Off-line RFID Systems Flavio D. Garcia and Peter van Rossum  

E-Print Network [OSTI]

in stores to enable RFID based cash registers), the privacy problems could be solved by sending the killModeling Privacy for Off-line RFID Systems Flavio D. Garcia and Peter van Rossum Institute applications. The widespread use of RFID has raised privacy concerns. Since most RFID tags will send a unique

Garcia, Flavio D.

77

RFID Enabled Vehicular Network for Ubiquitous Travel Query  

Science Journals Connector (OSTI)

Fixed infrastructure based wireless network is very expensive to provide total coverage and offer ubiquitous communication capacity. RFID enabled Vehicular Network emerges as an alternative which can leverage mobile nodes to bridge the gap between information ... Keywords: Delay, Mobile Relay, Partially Connected, RFID, Vehicular Ad Hoc Network VANET

ZongWei Luo, Tianle Zhang, Chunlu Wang, Shuihua Han, Mengyuan Dong

2011-07-01T23:59:59.000Z

78

Assessing the Impact of RFID on Return Center Logistics  

Science Journals Connector (OSTI)

As many manufacturers, retailers, distributors, and logistics firms adopt RFID, the technology is becoming pervasive in the supply chain. Although its advocates include retail giants such as Wal-Mart, not all companies are enthusiastic about its benefits. ... Keywords: RFID, business value, process-level analysis, reverse logistics, supply chain

Nishtha Langer; Chris Forman; Sunder Kekre; Alan Scheller-Wolf

2007-11-01T23:59:59.000Z

79

Exploration of disruptive technologies for low cost RFID manufacturing  

E-Print Network [OSTI]

Significant developments have taken place in defining technology standards and identifying avenues for technological innovations to reduce the cost of manufacturing RFID tags below the $0.05 price point. The Auto-ID center ...

Kommandur, Badarinath, 1968-

2004-01-01T23:59:59.000Z

80

An interoperable internet scale solution for RFID network security  

E-Print Network [OSTI]

Security and privacy issues are critically important in RFID networks because EPC data and their associated business events are valuable assets. In this paper, an Interoperable Internet-Scale Security (IISS) framework for ...

Mao, Tingting

Note: This page contains sample records for the topic "frequency identification rfid" 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

A robust location tracking using ubiquitous RFID wireless network  

Science Journals Connector (OSTI)

A dangerous workplace like the iron production company needs a durable monitoring of workers to protect them from an critical accident. This paper concerns about a robust and accurate location tracking method using ubiquitous RFID wireless network. The ...

Keunho Yun; Seokwon Choi; Daijin Kim

2006-09-01T23:59:59.000Z

82

OpenTag : privacy control methods in RFID  

E-Print Network [OSTI]

The work documented in this thesis is part of the OpenTag project, which has the goal of designing and developing a flexible and more powerful RFID system to meet the needs of the approaching ubiquitous tagging of everyday ...

Shen, Daniel Z

2006-01-01T23:59:59.000Z

83

1. The Next Revolution in Wireless and Mobility How RFID and Sensing Is Automating  

E-Print Network [OSTI]

No Greenwashing Here: How RFID Helps the Environment 3 Powerful Examples: EV Power Station Billing, Pedal Power Line with Patron ID and Point-of-Sale Wristbands RFID and the Beverage Market (part 5) Serving Up Soft

Roussos, George

84

The Peloton Approach : forecasting and strategic planning for emerging technologies : a case for RFID  

E-Print Network [OSTI]

The RFID industry is going through a sea of change and at different levels within the industry. Forecasts have been done on different facets of the RFID/EPC industry like the market size or the possible financial returns. ...

Thuvara, Vineet

2006-01-01T23:59:59.000Z

85

ASTWG-Owned Sampling Equipment Available for NMFS-Wide Surveys Dual-Frequency Identification Sonar (DIDSON)  

E-Print Network [OSTI]

Underwater Vehicle (AUV) The Fetch 3.5 AUV was designed to be a relatively low-cost system that can be hand quality images for detection and identification of targets underwater (http. The system is setup to be deployed autonomously but has a ~20 ft. cable for testing. Fetch Autonomous

86

A Do-It-All-Cipher for RFID: Design Requirements (Extended Abstract)  

E-Print Network [OSTI]

A Do-It-All-Cipher for RFID: Design Requirements (Extended Abstract) Markku-Juhani O. Saarinen that are present in real-life RFID systems. We give an overview of requirements emerging or already present in the widely deployed EPCGlobal Gen2 and ISO / IEC 18000-63 passive UHF RFID air interface standards

87

Dynamic Key-Updating: Privacy-Preserving Authentication for RFID Systems , Jinsong Han2  

E-Print Network [OSTI]

Dynamic Key-Updating: Privacy-Preserving Authentication for RFID Systems Li Lu1 , Jinsong Han2 an emerging requirement ­ protecting user privacy [13] in RFID authentications. In most RFID systems, tags sensitive information. For example, without pri- vacy protection, any reader can identify a consumer's ID

Liu, Yunhao

88

Dynamic Key-Updating: Privacy-Preserving Authentication for RFID Systems , Jinsong Han2  

E-Print Network [OSTI]

- sitive information. For example, without privacy pro- tection, any reader can identify a consumer's IDDynamic Key-Updating: Privacy-Preserving Authentication for RFID Systems Li Lu1 , Jinsong Han2 an emerging requirement ­ protecting user privacy [13] in RFID authentications. In most RFID systems, tags

Liu, Yunhao

89

Diffusion-Confusion based Light-weight Security for Item-RFID Tag-Reader Communication  

E-Print Network [OSTI]

privacy while carrying tagged items. Keywords: RFID, Tag-Reader communication security, Light item recall etc. As a result, very soon we can expect to see RFID tagged consumer items at manyDiffusion-Confusion based Light-weight Security for Item-RFID Tag-Reader Communication DIVYAN M

Kim, Kwangjo

90

Still and Silent: Motion Detection for Enhanced RFID Security and Privacy without Changing  

E-Print Network [OSTI]

cases, RFID tags store sensitive personally identifiable information. For example, a US passport storesStill and Silent: Motion Detection for Enhanced RFID Security and Privacy without Changing and in as many ways as possible. RFID is a wireless technology designed primarily for computerized identifi

Voris, Jonathan

91

Mirage: Mitigating Illicit Inventorying in a RFID Enabled Retail Environment  

E-Print Network [OSTI]

Given its low dollar and maintenance cost, RFID is poised to become the enabling technology for inventory control and supply chain management. However, as an outcome of its low cost, RFID based inventory control is susceptible to pernicious security and privacy threats. A deleterious attack on such a system is corporate espionage, where attackers through illicit inventorying infer sales and restocking trends for products. In this paper, we first present plausible aftermaths of corporate espionage using real data from online sources. Second, to mitigate corporate espionage in a retail store environment, we present a simple lowcost system called Mirage. Mirage uses additional programmable low cost passive RFID tags called honeytokens to inject noise in retail store inven-torying. Using a simple history based algorithm that controls activation and de-activation of honeytokens, Mirage randomizes sales and restocking trends. We evaluate Mirage in a real warehouse environment using a commercial off-the-shelf Motoro...

White, Jonathan

2010-01-01T23:59:59.000Z

92

Dual port temperature sensor tag for passive UHF RFID systems  

E-Print Network [OSTI]

Dual port temperature sensor tag for passive UHF RFID systems J. Virtanen Rauma Research Unit and to simplify the measurement procedure. Design/methodology/approach ­ The sensor tag is based on a dual port sensing concept in which two ports are used to obtain sensor readings. By utilizing two ports instead

Elsherbeni, Atef Z.

93

Robust RFID Authentication Protocol with Formal Proof and Its Feasibility  

E-Print Network [OSTI]

security models compatible with formal security analysis tools. We show that an RFID authentication, such as by letting us reference the price, origin and circulation route of specic goods. On the other hand-in-the-middle adversary and communication fault. We dene model and security proofs via a game-based approach makes our

94

RFID Implementation in Retail Industry: Current Status, Issues, and Challenges  

E-Print Network [OSTI]

, Chao-Hsien Chu, Tracy Mullen College of Information Sciences and Technology The Pennsylvania State University 1. Introduction With the advancement of Information and Communication technologies, cost reduction and Drug Administration, RFID has recently emerged as one of the emerging technologies for asset tracking

Mullen, Tracy

95

Broadband UHF RFID/Sensor Modules for Pervasive Cognition Applications  

E-Print Network [OSTI]

printing, can be used instead of metal etching techniques. In addition, paper is compatible with circuit additional modules like sensors and batteries to be mounted on or embedded in. A fast process like inkjet constant r (~3) is close to air's which means electromagnetic power can penetrate easily even if the RFID

Tentzeris, Manos

96

RFID BASED GRAIN AND OIL PRODUCTS TRACEABILITY1  

E-Print Network [OSTI]

RFID BASED GRAIN AND OIL PRODUCTS TRACEABILITY1 AND ITS COMPUTER IMPLEMENTATION Haiyan Hu ,*2 the study of the traceability of grain and oil products. Include the study contents, and a system we developed for traceability of grain and oil products, and the demonstration of the study. The system we

Boyer, Edmond

97

AUTO ID FUTURE - FREQUENCY AGNOSTIC  

E-Print Network [OSTI]

Identification of information is one key to the development of intelligent decision systems of the future. Frequency agnostic automatic identification is only one step in the physical world to make physical objects identify ...

DATTA, SHOUMEN

98

PAP: A privacy and authentication protocol for passive RFID tags Alex X. Liu *, LeRoy A. Bailey  

E-Print Network [OSTI]

people about consumer privacy protection and other security loopholes that make RFID tags an easy targetPAP: A privacy and authentication protocol for passive RFID tags Alex X. Liu *, LeRoy A. Bailey 2009 Accepted 20 March 2009 Available online 31 March 2009 Keywords: RFID Privacy Authentication

Liu, Alex X.

99

URL To Story: http://press.arrivenet.com/technology/article.php/993701.html RFID Innovation in Healthcare  

E-Print Network [OSTI]

URL To Story: http://press.arrivenet.com/technology/article.php/993701.html RFID Innovation on the RFID Tribe websit http://www.rfidtribe.com/home/index.php?option=com_events&Itemid=67 About RFID Tribe in Healthcare URL: http://press.arrivenet.com/technology/print.php

Chiao, Jung-Chih

100

E-Print Network 3.0 - air cargo inspection Sample Search Results  

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

Abstract This paper describes Cargo... sensor networks and radio- frequency identification (RFID). CargoNet was aimed at applications Source: Massachusetts Institute...

Note: This page contains sample records for the topic "frequency identification rfid" 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

Formal verification of privacy for RFID systems Mayla Bruso, Konstantinos Chatzikokolakis, and Jerry den Hartog  

E-Print Network [OSTI]

Formal verification of privacy for RFID systems Mayla Brus´o, Konstantinos Chatzikokolakis, and Jerry den Hartog Eindhoven University of Technology Abstract. RFID tags are being widely employed, however, in combination with their wireless nature, introduces privacy concerns as a tag could leak

Chatzikokolakis, Kostas

102

Energy-Aware Tag Anti-Collision Protocols for RFID Systems  

E-Print Network [OSTI]

Gao, Senior Member, IEEE Abstract-- Energy consumption of portable RFID readers is be- coming consumption of the reader should be minimized. Minimizing reader energy consumption would enable greater1 Energy-Aware Tag Anti-Collision Protocols for RFID Systems Vinod Namboodiri, Member, IEEE, Lixin

Namboodiri, Vinod

103

A Novel "Green" Inkjet-Printed Monopole Antenna Topology for Concurrent RFID and Cellular Communications  

E-Print Network [OSTI]

"green" inkjet-printed monopole antenna topology for integrated RFID-reader and cellular communicationA Novel "Green" Inkjet-Printed Monopole Antenna Topology for Concurrent RFID and Cellular Communications Zissis Konstas*(l), Konstantinos Katsibas(2) and Manos M. Tentzeris(l) (1) School of

Tentzeris, Manos

104

Use of Dual Frequency Identification Sonar to Determine Adult Chinook Salmon (Oncorhynchus tshawytscha) Escapement in the Secesh River, Idaho ; Annual Report, January 2008 – December 2008.  

SciTech Connect (OSTI)

Chinook salmon in the Snake River basin were listed as threatened under the Endangered Species Act in 1992 (NMFS 1992). The Secesh River represents the only stream in the Snake River basin where natural origin (wild) salmon escapement monitoring occurs at the population level, absent a supplementation program. As such the Secesh River has been identified as a long term salmon escapement and productivity monitoring site by the Nez Perce Tribe Department of Fisheries Resources Management. Salmon managers will use this data for effective population management and evaluation of the effect of conservation actions on a natural origin salmon population. The Secesh River also acts as a reference stream for supplementation program comparison. Dual frequency identification sonar (DIDSON) was used to determine adult spring and summer Chinook salmon escapement in the Secesh River in 2008. DIDSON technology was selected because it provided a non-invasive method for escapement monitoring that avoided listed species trapping and handling incidental mortality, and fish impedance related concerns. The DIDSON monitoring site was operated continuously from June 13 to September 14. The first salmon passage was observed on July 3. DIDSON site total estimated salmon escapement, natural and hatchery fish, was 888 fish {+-} 65 fish (95% confidence interval). Coefficient of variation associated with the escapement estimate was 3.7%. The DIDSON unit was operational 98.1% of the salmon migration period. Adult salmon migration timing in the Secesh River occurred over 74 days from July 3 to September 14, with 5,262 total fish passages observed. The spawning migration had 10%, median, and 90% passage dates of July 8, July 16, and August 12, respectively. The maximum number of net upstream migrating salmon was above the DIDSON monitoring site on August 27. Validation monitoring of DIDSON target counts with underwater optical cameras occurred for species identification. A total of 860 optical camera identified salmon passage observations were identical to DIDSON target counts. However, optical cameras identified eight jack salmon (3 upstream, 5 downstream) less than 55 cm in length that DIDSON did not count as salmon because of the length criteria employed ({ge} 55 cm). Precision of the DIDSON technology was evaluated by comparing estimated net upstream salmon escapement and associated 95% confidence intervals between two DIDSON sonar units operated over a five day period. The DIDSON 1 salmon escapement was 145.7 fish ({+-} 2.3), and the DIDSON 2 escapement estimate was 150.5 fish ({+-} 5). The overlap in the 95% confidence intervals suggested that the two escapement estimates were not significantly different from each other. Known length salmon carcass trials were conducted in 2008 to examine the accuracy of manually measured lengths, obtained using DIDSON software, on high frequency files at a 5 m window length. Linear regression demonstrated a highly significant relationship between known lengths and manually measured salmon carcass lengths (p < 0.0001). A positive bias in manual length measurement of 6.8% to 8% existed among the two observers in the analysis. Total Secesh River salmon escapement (natural origin and hatchery) in 2008 was 912 fish. Natural origin salmon escapement in the entire Secesh River drainage was 847 fish. The estimated natural origin spawner abundance was 836 fish. Salmon spawner abundance in 2008 increased by three fold compared to 2007 abundance levels. The 10 year geometric mean natural origin spawner abundance was 538 salmon and was below the recommended viable population threshold level established by the ICTRT (2007). One additional Snake River basin salmon population was assessed for comparison of natural origin salmon spawner abundance. The Johnson Creek/EFSF Salmon River population had a 10 year geometric mean natural origin spawner abundance of 254 salmon. Salmon spawner abundance levels in both streams were below viable population thresholds. DIDSON technology has been used in the Secesh River to determine salmo

Kucera, Paul A. [Nez Perce Tribe Department of Fisheries Resources Management

2009-06-26T23:59:59.000Z

105

A syndication-based messaging protocol for the global RFID network  

E-Print Network [OSTI]

This Master of Engineering thesis describes the design and implementation of a syndication based messaging protocol for the global RFID network. The motivation behind the design is to develop a scalable model that can be ...

Sun, Miao, M. Eng. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

106

RFID implementations : business process and technology lessons learned, recommendations and best practices for new adopters  

E-Print Network [OSTI]

This thesis focuses on documenting learnings from a RFID data exchange pilot in the fast moving consumer goods industry. The pilot we studied is a collaborative effort between two of the largest retailers in the world and ...

Chan, Rida

2006-01-01T23:59:59.000Z

107

Implementation of RFID in a low volume high flexibility assembly plant : item-level tagging  

E-Print Network [OSTI]

The implementation of an RFID checkpoint system in a low volume high flexibility assembly plant, aimed at tracking the flow of parts within the facility, was studied. A pilot revealed the suitability of the technology to ...

Koniski, Cyril (Cyril A.)

2010-01-01T23:59:59.000Z

108

Mining production information management system in an open pit based on GIS/GPS/GPRS/RFID  

Science Journals Connector (OSTI)

Using GIS, GPS, GPRS and RFID, a dynamic information management system of digital mining in an open pit was designed and developed. A linear programming model was set up in a practical application. By the mode...

Qing-hua Gu; Cai-wu Lu; Fa-ben Li…

2010-06-01T23:59:59.000Z

109

A proposal for inter-enterprise communication of RFID event data  

E-Print Network [OSTI]

Inter-enterprise communication of RFID event data requires rules and consistency. To create those rules and consistency one has to understand the requirements for the event architecture. I identified fifty-one stakeholders ...

Locher, Maximilian Greer

2005-01-01T23:59:59.000Z

110

RFID tags for identifying and verifying agrochemicals in food traceability systems  

Science Journals Connector (OSTI)

The objective of this paper is to identify what data should be stored in an automatic recording system to trace the use of agrochemicals. RFID tags are proposed as the most...

Sven Peets; C. P. Gasparin; D. W. K. Blackburn; R. J. Godwin

2009-10-01T23:59:59.000Z

111

Source-verification process: testing the system and determining consumer attitude  

E-Print Network [OSTI]

information in one computerized database" (Kester, 1999). This data collection has become easier and quicker due to Radio Frequency Identification (RFID) or Electronic Identification (EID). RFID works when an integrated-chip transponder is embedded... into an eartag. The chip contains a unique identification code. A RFID readers sends a radio fiequency signal to the tag which then broadcasts the number to the reader (Perkins, 1998). When the ear tag is assigned to an animal, that number becomes...

Busch, Laura Marie Christine

1999-01-01T23:59:59.000Z

112

A Novel Inkjet-Printed Passive Microfluidic RFID-based Sensing Platform Benajmin S. Cook, James R. Cooper, Sangkil Kim, and Manos M. Tentzeris  

E-Print Network [OSTI]

A Novel Inkjet-Printed Passive Microfluidic RFID-based Sensing Platform Benajmin S. Cook, James R platform combining RFID, microfluidics and inkjet printing technology that enables remote fluid analysis. Index Terms-- Inkjet Printing, Microfluidics, RFID, Antennas, Wireless Sensors, Passive Sensors I

Tentzeris, Manos

113

4714 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 61, NO. 12, DECEMBER 2013 An Inkjet-Printed Microfluidic RFID-Enabled  

E-Print Network [OSTI]

-Printed Microfluidic RFID-Enabled Platform for Wireless Lab-on-Chip Applications Benjamin S. Cook, Student Member, IEEE (RFID), microfluidics, and inkjet printing technology that enables remote fluid analysis and requires as little as 3 L of fluid. The demonstrated variable microfluidic capacitors, resonators, and RFID tags

Tentzeris, Manos

114

A Novel "Universal" Inkjet-Printed EBG-Backed Flexible RFID for Rugged On-Body and Metal Mounted Applications  

E-Print Network [OSTI]

antennas for factory works in the industry and patients in the hospital to plastic water bottles and metalA Novel "Universal" Inkjet-Printed EBG-Backed Flexible RFID for Rugged On-Body and Metal Mounted-printed electromagnetic bandgap backed (EBG) RFID tag has been designed and tested for wearable and metal mount

Tentzeris, Manos

115

An Exploratory Study of RFID Adoption in Retail Sector While several large retailers have mandated RFID deployment across their value chain,  

E-Print Network [OSTI]

1 An Exploratory Study of RFID Adoption in Retail Sector Abstract While several large retailers retailers still remains more uncertain. In this paper, we use an exploratory methodology, content analysis that the most significant retailer benefits are better management of inventory, improved security, and increased

Mullen, Tracy

116

Experimental methodology for non-thermal effects of electromagnetic radiation on biologics  

E-Print Network [OSTI]

Appropriate equipment is needed for research on the effects of radio-frequency radiation from radio-frequency identification (RF-ID) systems on biological materials. In the present study, a complete test system comprising ...

Cox, Felicia C. A. I

2006-01-01T23:59:59.000Z

117

A Traceability Service to Facilitate RFID Adoption in the Retail Supply Chain  

E-Print Network [OSTI]

A Traceability Service to Facilitate RFID Adoption in the Retail Supply Chain Gabriel Hermosillo concerns in the retail supply chain. We propose a service named TRASER (TRAceability SErvice for the Retail,7], construction and maintenance of oil facilities [8], retail and supply chain management [9,10,11] and anti

Paris-Sud XI, Université de

118

Design and Comparison Between Two General Purpose Dipole Type UHF RFID Tag Antennas  

E-Print Network [OSTI]

, Department of Electrical Engineering, University, MS 38677, USA, Email: fyang@olemiss.edu, atef are show in Figures 1 and 2. The tag in Fig. 1 is a modification of a bowtie antenna and the second one on a plastic substrate, which was modelled as 0.15 mm polyethylene sheet. Tags utilize the Alien Gen2 UHF RFID

Elsherbeni, Atef Z.

119

An Efficient Query Tree Protocol for RFID Tag Anti-Collision  

E-Print Network [OSTI]

An Efficient Query Tree Protocol for RFID Tag Anti-Collision Ming-Kuei Yeh National Taipei Query Tree (EQT) protocol to improve both the Query Tree (QT) protocol and the Collision Tree (CT and the energy consumption is lessened. In the EQT protocol, the timeslots structure, the query and responses

Jiang, Jehn-Ruey

120

Energy-Aware Tag Anti-Collision Protocols for RFID Systems Vinod Namboodiri, Lixin Gao  

E-Print Network [OSTI]

provide significant energy savings when compared to the existing Query Tree protocol while sharingEnergy-Aware Tag Anti-Collision Protocols for RFID Systems Vinod Namboodiri, Lixin Gao Department of Electrical and Computer Engineering University of Massachusetts at Amherst Email: {vnambood, lgao

Namboodiri, Vinod

Note: This page contains sample records for the topic "frequency identification rfid" 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

3870 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 53, NO. 12, DECEMBER 2005 Antenna Design for UHF RFID Tags  

E-Print Network [OSTI]

3870 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 53, NO. 12, DECEMBER 2005 Antenna Design is a big and costly venture, RFID tag antennas are designed for a specific ASIC available in the market

Hochberg, Michael

122

Temporal mechanisms underlying flicker detection and identification for red–green and achromatic stimuli  

Science Journals Connector (OSTI)

We have simultaneously measured detection and temporal frequency identification for both red–green isoluminant and achromatic stimuli over a range of temporal frequencies for two...

Metha, Andrew B; Mullen, Kathy T

1996-01-01T23:59:59.000Z

123

A Cost Effective RFID Based Customized DVD-ROM to Thwart Software Piracy  

E-Print Network [OSTI]

Software piracy has been a very perilous adversary of the software based industry, from the very beginning of the development of the latter into a significant business. There has been no developed foolproof system that has been developed to appropriately tackle this vile issue. We have in our scheme tried to develop a way to embark upon this problem using a very recently developed technology of RFID.

Dogra, Sudip; Ghosh, Saustav; Bhattacharya, Debharshi; Sarkar, Subir Kr

2009-01-01T23:59:59.000Z

124

Security and User Privacy for Mobile-RFID Applications in Public Zone Divyan M. Konidala, Hyunrok Lee, Dang Nguyen Duc, Kwangjo Kim  

E-Print Network [OSTI]

Security and User Privacy for Mobile-RFID Applications in Public Zone Divyan M. Konidala, Hyunrok and privacy threats. We propose a security framework, which addresses issues such as: identifying cloned fake. {divyan, tank, nguyenduc, kkj}@icu.ac.kr Abstract To make RFID technology assist people in their daily

Kim, Kwangjo

125

Towards Building Occupants Positioning: Track and Trace for Optimal Process Control  

E-Print Network [OSTI]

-time occupancy detection systems comprising multiple sensors within a wireless network (WSN) using technologies such as radio frequency identification (RFID) and WIFI enabled devices have been proposed for use in large commercial office buildings. However due...

Zeiler, W.; Labeodan, T.; Bozem, G.; Maaijen, R.

2013-01-01T23:59:59.000Z

126

JOURNAL OF LATEX CLASS FILES, VOL. 6, NO. 1, JANUARY 2007 1 Distributed Group Authentication for  

E-Print Network [OSTI]

an application of Radio Frequency Identification (RFID) referred to in the literature as group scanning, in which Frequency Identification) based product identification system for inventory and sup- ply management involves three main components: i) tags or transponders, which are electronic data storage devices attached

127

Gene Frequency  

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

Gene Frequency Gene Frequency Name: donna Location: N/A Country: N/A Date: N/A Question: If six fingers is a dominant human trait why do we have only five? Replies: This is simple. There are just not many genes in the human population for six fingers. Steve Sample Look in any high school biology book for what is known as Hardy-Weinberg equilibrium. These two scientists (separately) said that gene frequencies do not change much unless something in the environment selects them over other genes. In other words, unless 6 fingers somehow becomes an advantage, and five-fingered people have less of an advantage, the frequency of six fingered people in the population will not necessarily increase. This is the same reason that recessive traits don't disappear from the population. Also, six fingers is not considered attractive and they may not get as many mates. Also, more people are born with six fingers than you might imagine but just have them amputated shortly after birth.

128

Design and Modeling of Novel Multiband/Wideband Antennas for RFID Tags and Readers Using Time-/Frequency-Domain Simulators  

E-Print Network [OSTI]

tag as a likely substitute for barcodes [1] in industries such as access control, parcel and document applications, such as boxes, palettes or items placed on conveyor belts (known position of tag). However

Tentzeris, Manos

129

Identification of dynamic force coefficients of a labyrinth and gas damper seal using impact load excitations  

E-Print Network [OSTI]

, and the seal displacement and acceleration time responses in two orthogonal directions are measured. A frequency domain parameter identification procedure allows the determination of the seals' dynamic force coefficients over a frequency range. Tests are made...

Ransom, David Lawrence

1997-01-01T23:59:59.000Z

130

RFID-based solution for galleries and museums visit modelling using Markov model, BBN's and MAP decisions  

Science Journals Connector (OSTI)

RFID technologies are becoming increasingly popular and widely used in many applications. Tags can be used for environment and habit monitoring, healthcare applications, home automation and pedestrian or vehicle traffic control. This paper describes the method of building a robust N-state Markov model that describes visitor's behaviour in a gallery room. The built model can be used in planning of exhibitions, in modelling of visitor's preferences, and/or in generation of predictions related with exhibition lasting, expected sales and pricing. Presented system performance improvements are realised through Bayesian belief network (BBN) and maximum a posterior probability (MAP) decision approximation algorithm.

Petar Solic; Nikola Rozic; Josko Radic

2010-01-01T23:59:59.000Z

131

High frequency rectenna  

DOE Patents [OSTI]

The invention provides an inexpensive array of rectifying antennas which employ field emission diodes for rectifying electromagnetic waves of microwave frequencies and higher frequencies.

Logan, B. Grant (Danville, CA); Orvis, William J. (Livermore, CA)

1991-01-01T23:59:59.000Z

132

Time-and Energy-efficient Detection of Unknown Tags in Large-scale RFID Systems Xiulong Liu, Heng Qi, Keqiu Li  

E-Print Network [OSTI]

Time- and Energy-efficient Detection of Unknown Tags in Large-scale RFID Systems Xiulong Liu, Heng by reducing more than 90% of the required execution time and energy consumption. I. INTRODUCTION Radio, this is the first piece of work taking both time-efficiency and energy-efficiency into consideration, where

Liu, Alex X.

133

Effects of Residual Feed Intake Classification on Temperament, Carcass Composition, and Feeding Behavior Traits in Growing Santa Gertrudis Heifers  

E-Print Network [OSTI]

individual animal feed intake and behavior in large groups remained difficult until RFID-based technology was developed in the mid-1970s (Eradus and Jansen, 1999). While the costs associated with measuring individual feed intake in cattle are expensive... traits in large groups of animals using radio frequency identification (RFID) tags. The antenna located within the rim of the feed bunk reads the RFID tag as the animal enters the bunk via the neck bars. A wireless signal is then sent to a data...

Ramirez, Justin A

2014-04-16T23:59:59.000Z

134

Marker-based tracking in support of RFID controlled material flow systems  

Science Journals Connector (OSTI)

In this paper, we address roller and belt conveyor systems as a typical form of automated transport and distribution of piece goods (parcel, bins, etc.) within a distribution...Identification Point (I-Point) at t...

F. Weichert; D. Fiedler; J. Hegenberg; H. Müller; C. Prasse; M. Roidl…

2010-06-01T23:59:59.000Z

135

Random Profiles of Laser Marks S. Saloomeh Shariati1  

E-Print Network [OSTI]

of the random profile of laser marks that are engraved on the surface or in the bulk of physical objects. Given is Radio Frequency Identification (RFID) Tag that contains digital identifier used to authenticate a credit card and serves as an identification tag. For a more in-depth view of PUF and its use

Nesterov, Yurii

136

Radio frequency identification enabled wireless sensing for intelligent food logistics  

Science Journals Connector (OSTI)

...with short- or medium-range wireless in ISM band such as ZigBee and Bluetooth. It...have been several alternatives, such as fuel cells and thin-film batteries. Moreover...limitations as passive tags, they come at higher price levels and require batteries to operate...

Zhuo Zou; Qing Chen; Ismail Uysal; Lirong Zheng

2014-01-01T23:59:59.000Z

137

Eastern Frequency Response Study  

SciTech Connect (OSTI)

This study was specifically designed to investigate the frequency response of the Eastern Interconnection that results from large loss-of-generation events of the type targeted by the North American Electric Reliability Corp. Standard BAL-003 Frequency Response and Frequency Bias Setting (NERC 2012a), under possible future system conditions with high levels of wind generation.

Miller, N.W.; Shao, M.; Pajic, S.; D'Aquila, R.

2013-05-01T23:59:59.000Z

138

Frequency selective infrared sensors  

DOE Patents [OSTI]

A frequency selective infrared (IR) photodetector having a predetermined frequency band. The exemplary frequency selective photodetector includes: a dielectric IR absorber having a first surface and a second surface substantially parallel to the first surface; an electrode electrically coupled to the first surface of the dielectric IR absorber; and a frequency selective surface plasmonic (FSSP) structure formed on the second surface of the dielectric IR absorber. The FSSP structure is designed to selectively transmit radiation in the predetermined frequency band that is incident on the FSSP structure substantially independent of the angle of incidence of the incident radiation on the FSSP structure.

Davids, Paul; Peters, David W

2013-05-28T23:59:59.000Z

139

Frequency selective infrared sensors  

SciTech Connect (OSTI)

A frequency selective infrared (IR) photodetector having a predetermined frequency band. The exemplary frequency selective photodetector includes: a dielectric IR absorber having a first surface and a second surface substantially parallel to the first surface; an electrode electrically coupled to the first surface of the dielectric IR absorber; and a frequency selective surface plasmonic (FSSP) structure formed on the second surface of the dielectric IR absorber. The FSSP structure is designed to selectively transmit radiation in the predetermined frequency band that is incident on the FSSP structure substantially independent of the angle of incidence of the incident radiation on the FSSP structure.

Davids, Paul; Peters, David W

2014-11-25T23:59:59.000Z

140

A comprehensive study of the bias and variance of frequency-response-function measurements: Optimal window selection and overlapping strategies  

Science Journals Connector (OSTI)

This paper investigates the measurement errors involved in measuring frequency response functions from weighted-overlapped segment averaging, a technique that has become a standard in modern spectral analysers due to its computational advantages. A particular ... Keywords: Frequency response function, Non-parametric frequency domain identification, Statistical performance analysis, Weighted-overlapped segment averaging

Jérôme Antoni; Johan Schoukens

2007-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Frequency Combs for Astronomy  

Science Journals Connector (OSTI)

For the first time a mode filtered frequency comb has been used to calibrate an astronomical spectrometer online. Solar and calibration spectra have been recorded simultaneously.

Wilken, Tobias; Hänsch, Theodor W; Udem, Thomas; Steinmetz, Tilo; Holzwarth, Ronald; Araujo-Hauck, Constanza; Pasquini, Luca; D'Odorico, Sandro; Manescau, Antonio; Murphy, Michael T; Kentischer, Thomas; Schmidt, Wolfgang

142

Stabilized radio frequency quadrupole  

DOE Patents [OSTI]

Disclosed is a long-vane stabilized radio frequency resonator for accelerating charged particles and including means defining a radio frequency resonator cavity, a plurality of long vanes mounted in the defining means for dividing the cavity into sections, and means interconnecting opposing ones of the plurality of vanes for stabilizing the resonator. 5 figs.

Lancaster, H.D.; Fugitt, J.A.; Howard, D.R.

1984-12-25T23:59:59.000Z

143

Standard Frequency Broadcasts  

Science Journals Connector (OSTI)

... Mc./sec., at least three of which are available at any time; standard audio frequencies of 440 and 4,000 c./sec. broadcast on these carriers; and ... second of every minute the pulse is omitted. The 1-min. interval in the audio-frequency transmission is used to give the station announcement, either in Morse or (at ...

1944-09-02T23:59:59.000Z

144

Variable Frequency Pump Drives  

E-Print Network [OSTI]

-frequency electric motor drive. What is happenin9 with variable frequency driven pun,ps is a classical illustration that evolution in technical products takes place not only because of changes in the processes served by these products, or because of innovations...-pole 3550 rpm squirrel caqe induction motor became available in the early 1930s that high pressure pumps operating at that speed could be buil t. And now, in the 1980s, the development of the solid-state, variable frequency electric motor drive...

Karassik, I. J.; Petraccaro, L. L.; McGuire, J. T.

145

Impedance Noise Identification for State-of-Health Prognostics  

SciTech Connect (OSTI)

Impedance Noise Identification is an in-situ method of measuring battery impedance as a function of frequency using a random small signal noise excitation source. Through a series of auto- and cross-correlations and Fast Fourier Transforms, the battery complex impedance as a function of frequency can be determined. The results are similar to those measured under a lab-scale electrochemical impedance spectroscopy measurement. The lab-scale measurements have been shown to correlate well with resistance and power data that are typically used to ascertain the remaining life of a battery. To this end, the Impedance Noise Identification system is designed to acquire the same type of data as an on-board tool. A prototype system is now under development, and results are being compared to standardized measurement techniques such as electrochemical impedance spectroscopy. A brief description of the Impedance Noise Identification hardware system and representative test results are presented.

Jon P. Christophersen; Chester G. Motloch; John L. Morrison; Ian B. Donnellan; William H. Morrison

2008-07-01T23:59:59.000Z

146

Graphene Frequency Multipliers  

E-Print Network [OSTI]

In this letter, the ambipolar transport properties of graphene flakes have been used to fabricate full-wave signal rectifiers and frequency-doubling devices. By correctly biasing an ambipolar graphene field-effect transistor ...

Wang, Han

147

Variable Frequency Drives  

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

How BPA Supports VFDs Rebates are available from your utility for Variable Frequency Drives on pumps 20hp or greater and storage fans.. Energy savings from VFDs vary and can...

148

Mechanically tunable plasma frequency  

E-Print Network [OSTI]

in S12 phases. function [eps, x] = FindPerm(Thru, Sample,It returns the permittivity (eps) and a frequency matrix %0; % Initialize results matrix eps = zeros(n,1); for i = 1:n

Schuil, Crystal Joy

2009-01-01T23:59:59.000Z

149

Practical Attacks on Proximity Identification Systems (Short Paper) Gerhard P. Hancke  

E-Print Network [OSTI]

of relay and eavesdropping attacks on RFID de- vices they don't always describe implementations or show 1 a contactless smart card system and simulated the distances achievable for readertoken and tokenreader communication in the context of a relay at- tack. As discussed in section 2, RFID is a general term for any near

Hancke, Gerhard

150

Frequencies for Radio Astronomy  

Science Journals Connector (OSTI)

... must therefore be achieved through the combined action of three international scientific unions, IAU (astronomy), COSPAR (space) and URSI (radio), which jointly delegate members to an ... jointly delegate members to an Inter-Union Commission for the Allocation of Frequencies for Radio Astronomy and Space Science (IUCAF). This Commission discusses the scientific case for protecting various ...

F. G. SMITH

1970-10-31T23:59:59.000Z

151

High frequency reference electrode  

DOE Patents [OSTI]

A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or halo' at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes. 4 figs.

Kronberg, J.W.

1994-05-31T23:59:59.000Z

152

Frequency ratio method for seismic modeling of Gamma Doradus stars  

E-Print Network [OSTI]

A method for obtaining asteroseismological information of a Gamma Doradus oscillating star showing at least three pulsation frequencies is presented. This method is based on a first-order asymptotic g-mode expression, in agreement with the internal structure of Gamma Doradus stars. The information obtained is twofold: 1) a possible identification of the radial order n and degree l of observed frequencies (assuming that these have the same l), and 2) an estimate of the integral of the buoyancy frequency (Brunt-Vaisala) weighted over the stellar radius along the radiative zone. The accuracy of the method as well as its theoretical consistency are also discussed for a typical Gamma Doradus stellar model. Finally, the frequency ratios method has been tested with observed frequencies of the Gamma Doradus star HD 12901. The number of representative models verifying the complete set of constraints (the location in the HR diagram, the Brunt-Vaisala frequency integral, the observed metallicity and frequencies and a re...

Moya, A; Amado, P J; Martin-Ruiz, S; Garrido, R

2004-01-01T23:59:59.000Z

153

Fast Algorithms for High Frequency Interconnect Modeling in VLSI Circuits and Packages  

E-Print Network [OSTI]

used in MEMS, RFID and MRAM. We present the first BEM algorithm to extract interconnect inductance with magnetic materials. The algorithm models magnetic characteristics by the Landau Lifshitz Gilbert equation and fictitious magnetic charges...

Yi, Yang

2011-02-22T23:59:59.000Z

154

New tools for identification of wind turbine structures  

SciTech Connect (OSTI)

The new identification tools used in this research to analyze input-output time histories of a wind turbine structure, with a wide-band excitation, allow to obtain its modal state space representation. This representation reveals the internal behavior of the system, such as the interaction between its physical parameters. The techniques presented in this paper also allow researchers to obtain modal parameters, as well as frequency responses of a properly excited wind turbine structure immersed in wind noise. The use of two identification algorithms with the same, relatively simple numerical example, enables to compare the results obtained with the actual characteristics of the system modeled. Then, an example using the data generated by the ADAMS{reg_sign} model of the Micon 65/13 wind turbine structure is considered to illustrate additional elements to be included in the identification procedure for such a complex flexible structure.

Bialasiewicz, J.T.; Osgood, R.M. [National Renewable Enery Lab., Golden, CO (United States)

1995-12-31T23:59:59.000Z

155

Identification of weak non-linearities in cables of cable-stayed footbridges  

Science Journals Connector (OSTI)

A time-frequency identification technique for the non-linear identification of a cable element was proposed in this paper. A polynomial form of non-parametric method was used. A long cable of a newly constructed cable-stayed footbridge was modelled in the ANSYS structural software. The model was reduced to a SDoF system, by applying a harmonic force in the first modal frequency and the first mode shape. A good match between the identified and numerical data was obtained. Some interesting non-linear phenomena were observed: only a cubic type of non-linearity was identified. Moreover, the values of the damping and cubic parameters stabilised at higher load amplitudes. However, parameter relevant to linear-frequency was increasing with the loading amplitude showing a typical hardening behaviour of cable structures. Superharmonics were present in the response at higher loading amplitudes. Therefore, the identification procedure was found to be effective at higher load amplitudes.

Anil Kumar; Luca Zanotti Fragonara

2013-01-01T23:59:59.000Z

156

ORISE: Peer Review Expert Identification  

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

Expert Identification Two peer review experts discussing the review topic Effective peer review management requires finding academic reviewers or other experts and recruiting them...

157

FREQUENCY DOMAIN INSTANTANEOUS WAVENUMBER ESTIMATION FOR DAMAGE QUANTIFICATION IN LAYERED PLATE STRUCTURES  

E-Print Network [OSTI]

FREQUENCY DOMAIN INSTANTANEOUS WAVENUMBER ESTIMATION FOR DAMAGE QUANTIFICATION IN LAYERED PLATE, US 3 G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA of promising techniques for the identification and the characterization of damage in plate structures. Among

Boyer, Edmond

158

Frequency locking in the injection-locked frequency divider equation  

E-Print Network [OSTI]

We consider a model for the injection-locked frequency divider, and study analytically the locking onto rational multiples of the driving frequency. We provide explicit formulae for the width of the plateaux appearing in the devil's staircase structure of the lockings, and in particular show that the largest plateaux correspond to even integer values for the ratio of the frequency of the driving signal to the frequency of the output signal. Our results prove the experimental and numerical results available in the literature.

Bartuccelli, Michele V; Gentile, Guido

2008-01-01T23:59:59.000Z

159

Light beam frequency comb generator  

DOE Patents [OSTI]

A light beam frequency comb generator uses an acousto-optic modulator to generate a plurality of light beams with frequencies which are uniformly separated and possess common noise and drift characteristics. A well collimated monochromatic input light beam is passed through this modulator to produce a set of both frequency shifted and unshifted optical beams. An optical system directs one or more frequency shifted beams along a path which is parallel to the path of the input light beam such that the frequency shifted beams are made incident on the modulator proximate to but separated from the point of incidence of the input light beam. After the beam is thus returned to and passed through the modulator repeatedly, a plurality of mutually parallel beams are generated which are frequency-shifted different numbers of times and possess common noise and drift characteristics.

Priatko, Gordon J. (Cupertino, CA); Kaskey, Jeffrey A. (Livermore, CA)

1992-01-01T23:59:59.000Z

160

Effective switching frequency multiplier inverter  

DOE Patents [OSTI]

A switching frequency multiplier inverter for low inductance machines that uses parallel connection of switches and each switch is independently controlled according to a pulse width modulation scheme. The effective switching frequency is multiplied by the number of switches connected in parallel while each individual switch operates within its limit of switching frequency. This technique can also be used for other power converters such as DC/DC, AC/DC converters.

Su, Gui-Jia (Oak Ridge, TN); Peng, Fang Z. (Okemos, MI)

2007-08-07T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Alternative Fuels Data Center: Renewable Identification Numbers  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Renewable Renewable Identification Numbers to someone by E-mail Share Alternative Fuels Data Center: Renewable Identification Numbers on Facebook Tweet about Alternative Fuels Data Center: Renewable Identification Numbers on Twitter Bookmark Alternative Fuels Data Center: Renewable Identification Numbers on Google Bookmark Alternative Fuels Data Center: Renewable Identification Numbers on Delicious Rank Alternative Fuels Data Center: Renewable Identification Numbers on Digg Find More places to share Alternative Fuels Data Center: Renewable Identification Numbers on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Renewable Identification Numbers RIN Format EPA uses the following format to determine RINs for each physical gallon of

162

Audio-Frequency Power Measurements  

Science Journals Connector (OSTI)

... " prepared by the National Physical Laboratory, Teddington, is a brief pamphlet dealing with "Audio-Frequency Power Measurements" (pp. 16. London: H.M.S.O., 1954; ...

1955-09-10T23:59:59.000Z

163

Operational modal identification of offshore wind turbine structure based on modified stochastic subspace identification method considering harmonic interference  

Science Journals Connector (OSTI)

The structural modal parameter information can be generally obtained from different vibration responses triggered by unknown excitations using the classic modal identification methods which are based on the assumption that the input to the structure is exactly the same or close to the stationary random white noise. For the actual projects such as the offshore wind turbine structure however the imposed loads cannot be considered as the pure white noise excitation because the harmonic components emerge obviously in vibration responses due to periodic rotation excitations of the rotor. When the created harmonic components have greater energy and their frequencies are close to any natural modal frequency of the structure the classic methods can no longer separate harmonic modes from actual structural operational modes under this strong harmonic disturbance thus false modes may be generated and the identification accuracy may be badly affected. To identify the actual structural operational modes accurately under strong harmonic excitation a modified stochastic subspace identification (SSI) method considering harmonic interference called the harmonic modification SSI (HM-SSI) method was proposed in this paper assuming the input harmonic frequencies are known and time-invariant. Then the effectiveness and accuracy of the HM-SSI method were verified through a simple numerical model of cantilever beam excited by various harmonic inputs superimposed on random loads. Besides the superior robustness and better accuracy of identification results affected by the level of noise and the proportion of harmonic energy were reflected. Finally the modal parameter information under different operational conditions was obtained and the safety assessment of an operational wind turbine was made based on the measured data from one offshore wind turbine test prototype at high running speed.

Jijian Lian

2014-01-01T23:59:59.000Z

164

Stabilized radio-frequency quadrupole  

DOE Patents [OSTI]

A long-vane stabilized radio frequency resonator for accelerating charged particles and including means defining a radio frequency resonator cavity, a plurality of long vanes mounted in the defining means for dividing the cavity into sections, and means interconnecting opposing ones of the plurality of vanes for stabilizing the resonator.

Lancaster, H.D.; Fugitt, J.A.; Howard, D.R.

1982-09-29T23:59:59.000Z

165

OPERATIONAL MODAL ANALYSIS AND WAVELET TRANSFORMATION FOR DAMAGE IDENTIFICATION IN WIND TURBINE BLADES  

E-Print Network [OSTI]

OPERATIONAL MODAL ANALYSIS AND WAVELET TRANSFORMATION FOR DAMAGE IDENTIFICATION IN WIND TURBINE-frequency modes. KEYWORDS : Wind Turbine Blades, Debonding, Wavelet Transformation, Operational Modal Analysis. INTRODUCTION While failure can happen in any structural component of the wind turbine, one of the most common

Paris-Sud XI, Université de

166

Iris Recognition for Human Identification  

Science Journals Connector (OSTI)

Iris recognition system is the biometric identification system. Iris has an intricate structure uniqueness stability and natural protection. Due to these features of the iris it can be used for biometric identification. This system gives better performance than other biometric identification systems. A novel eyelash removal method for preprocessing of human iris images in a human iris recognition system is presented.. Discrete cosine transform (DCT) method is used for feature extraction. For matching of two?iris code Hamming distance calculation is used. EER value must be less for the optimum performance of the system.

Lajari Alandkar; Sachin Gengaje

2010-01-01T23:59:59.000Z

167

Surveillance Guides - Identification of Hazards  

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

Identification of Hazards Identification of Hazards 1.0 Objective The objective of this surveillance is to evaluate the effectiveness of the contractor's hazards identification programs. Surveillance activities encompass maintenance and implementation of safety basis documentation (SARs, ISBs, BIOs, JCOs, HASPs etc) as well as activity level hazards identification via JHAs, AJHAs, JSAs etc.) 2.0 References 2.1 DOE 4330.4B Maintenance Management Program 2.2 48 CFR 1970 Department of Energy Acquisition Regulations 2.3 DOE O 5480.21, Unreviewed Safety Questions 2.4 DOE O 5480.23, Nuclear Safety Analysis Reports 3.0 Requirements Implemented This surveillance verifies implementation of guiding principle #5 and core value #2 as specified in 48 CFR 1970.5204-2 (b) (5) and (c) (2) respectively. Additionally, it verifies implementation of

168

Color Tables for Mineral Identification  

Science Journals Connector (OSTI)

Fluorescent color can be a useful guide to mineral identification, and in some cases, it is the quickest and least expensive means. In the mines at Franklin and Ogdensburg, New Jersey, a portable battery opera...

Manuel Robbins

1983-01-01T23:59:59.000Z

169

Identification of telomerase in dog  

E-Print Network [OSTI]

the telomeres from diminishing during replication and ensures immortality to the cancerous cell. As the result, telomerase can be used as an identification test for malignant tissues. In humans, even though important, there are may other ways to determine...

Lyuksyutova, Anna

2013-02-22T23:59:59.000Z

170

Muon Identification at the Tevatron  

Science Journals Connector (OSTI)

The muon detection and identification schemes for the CDF ... Fermilab Tevatron are described. Both experiments detect muons through the use of scintillation counters and ... surrounding a central tracker. Three ...

2006-01-01T23:59:59.000Z

171

3D nonparametric neural identification  

Science Journals Connector (OSTI)

This paper presents the state identification study of 3D partial differential equations (PDEs) using the differential neural networks (DNNs) approximation. There are so many physical situations in applied mathematics and engineering that can be described ...

Rita Q. Fuentes; Isaac Chairez; Alexander Poznyak; Tatyana Poznyak

2012-01-01T23:59:59.000Z

172

Microwave and Radio Frequency Workshop  

Broader source: Energy.gov [DOE]

At the Microwave and Radio Frequency Workshop (held in Long Beach, CA, on July 25, 2012), academic and industry experts discussed the existing and emerging electrotechnologies – such as microwave ...

173

Frequency regulator for synchronous generators  

DOE Patents [OSTI]

The present invention is directed to a novel frequency regulator which controls a generator output frequency for variations in both the input power to the generator and the power supplied to an uncontrolled external load. The present invention further includes over current and current balance protection devices which are relatively inexpensive to manufacture, which may be encapsulated to provide protection from the operating environment and which respond more quickly than previously known electromechanical devices.

Karlicek, Robert F. (1920 Camino Centroloma, Fullerton, CA 92633)

1982-01-01T23:59:59.000Z

174

Frequency regulator for synchronous generators  

DOE Patents [OSTI]

The present invention is directed to a novel frequency regulator which controls a generator output frequency for variations in both the input power to the generator and the power supplied to an uncontrolled external load. The present invention further includes over current and current balance protection devices which are relatively inexpensive to manufacture, which may be encapsulated to provide protection from the operating environment and which respond more quickly than previously known electromechanical devices. 11 figs.

Karlicek, R.F.

1982-08-10T23:59:59.000Z

175

Photonic Radio-Frequency Phase Detector based on Radio-Frequency to Intermediate-Frequency Phase Mapping  

Science Journals Connector (OSTI)

A photonic radio-frequency phase detector based on radio-frequency (RF) to intermediate-frequency mapping is demonstrated, and the theoretical principle of the design is explained.

Sun, Dongning; Dong, Yi; Wang, Siwei; Xia, Zongyang; Xie, Weilin; Shi, Hongxiao; Yi, Lilin; Hu, Weisheng

176

CX-001131: Categorical Exclusion Determination | Department of Energy  

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

31: Categorical Exclusion Determination 31: Categorical Exclusion Determination CX-001131: Categorical Exclusion Determination Installation and Use of Argonne Radio Frequency Identification Device (RFID) in K-Area Material Storage CX(s) Applied: B1.7 Date: 02/23/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Introduction and use of new tracking and monitoring system for packaged nuclear materials (9975s) within K-Area Material Storage Process Room. Packaged 9975 containers will be additionally tagged with Argonne Radio Frequency Identification Device (RFID) sensors which are currently equipped to monitor for temperature, humidity, seal, shock and battery status. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-001131.pdf More Documents & Publications

177

Concealed identification symbols and nondestructive determination of the identification symbols  

DOE Patents [OSTI]

The concealing of one or more identification symbols into a target object and the subsequent determination or reading of such symbols through non-destructive testing is described. The symbols can be concealed in a manner so that they are not visible to the human eye and/or cannot be readily revealed to the human eye without damage or destruction of the target object. The identification symbols can be determined after concealment by e.g., the compilation of multiple X-ray images. As such, the present invention can also provide e.g., a deterrent to theft and the recovery of lost or stolen objects.

Nance, Thomas A.; Gibbs, Kenneth M.

2014-09-16T23:59:59.000Z

178

Variable frequency microwave heating apparatus  

DOE Patents [OSTI]

A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a multi-mode microwave cavity (34) for testing or other selected applications. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a high-power microwave oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

Bible, Don W. (Clinton, TN); Lauf, Robert J. (Oak Ridge, TN); Johnson, Arvid C. (Lake in the Hills, IL); Thigpen, Larry T. (Angier, NC)

1999-01-01T23:59:59.000Z

179

High-frequency resonances in photorefractive crystals  

Science Journals Connector (OSTI)

Two-wave mixing in photorefractive materials is investigated for the case of applied dc electric fields and large detuning frequencies and for high-frequency alternating electric...

Grunnet-Jepsen, A; Aubrecht, I; Solymar, L

1995-01-01T23:59:59.000Z

180

Sum Frequency Generation for Surface Vibrational Spectroscopy...  

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

Sum Frequency Generation for Surface Vibrational Spectroscopy Sum Frequency Generation for Surface Vibrational Spectroscopy This customized SFG-VS spectrometer incorporates unique...

Note: This page contains sample records for the topic "frequency identification rfid" 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

SOLVING THE MODE IDENTIFICATION PROBLEM IN ASTEROSEISMOLOGY OF F STARS OBSERVED WITH KEPLER  

SciTech Connect (OSTI)

Asteroseismology of F-type stars has been hindered by an ambiguity in identification of their oscillation modes. The regular mode pattern that makes this task trivial in cooler stars is masked by increased line widths. The absolute mode frequencies, encapsulated in the asteroseismic variable {epsilon}, can help solve this impasse because the values of {epsilon} implied by the two possible mode identifications are distinct. We find that the correct {epsilon} can be deduced from the effective temperature and the line widths and we apply these methods to a sample of solar-like oscillators observed with Kepler.

White, Timothy R.; Bedding, Timothy R.; Benomar, Othman; Stello, Dennis; Huber, Daniel [Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006 (Australia); Gruberbauer, Michael [Institute for Computational Astrophysics, Department of Astronomy and Physics, Saint Mary's University, Halifax, NS B3H 3C3 (Canada); Appourchaux, Thierry [Universite Paris-Sud, Institut d'Astrophysique Spatiale, UMR8617, CNRS, Batiment 121, 91405 Orsay Cedex (France); Chaplin, William J.; Elsworth, Yvonne P.; Hekker, Saskia [School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT (United Kingdom); Christensen-Dalsgaard, Jorgen; Kjeldsen, Hans [Danish AsteroSeismology Centre (DASC), Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark); Garcia, Rafael A. [Laboratoire AIM, CEA/DSM-CNRS, Universite Paris 7 Diderot, IRFU/SAp, Centre de Saclay, 91191 Gif-sur-Yvette (France); Mosser, Benoit [LESIA, CNRS, Universite Pierre et Marie Curie, Universite Denis Diderot, Observatoire de Paris, 92195 Meudon Cedex (France); Kinemuchi, Karen; Still, Martin [Bay Area Environmental Research Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States); Mullally, Fergal, E-mail: t.white@physics.usyd.edu.au [SETI Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States)

2012-06-01T23:59:59.000Z

182

High-performance Organic Thin-film Transistor  

E-Print Network [OSTI]

Plasma-Enhanced Chemical Vapor Deposition PGMEA Propylene glycol methyl ether acetate PMMA Poly (methyl methacrylate) PVA Polyvinyl acetate RFID Radio Frequency Identification RIE Reactive Ion Etching SAM Self-Aligned Monolayer SEM Scanning... ............................................................................................ 25 2.2.1 Adhesion improvement and dual polymer layer on SiO2 ................................ 25 2.2.2 Non-compatibility testing for PMMA and P3HT ............................................ 26 2.2.3 Single-layer patterning...

Jung, Yunbum

2014-03-19T23:59:59.000Z

183

The Virtual-Augmented-Reality Environment for Building Commissioning-Case Study  

E-Print Network [OSTI]

investigated RFID (Radio Frequency Identification Device) technology as an alternative object tracking approach. A series of case studies were conducted to verify the performance of the proposed system with various kinds of information commonly being... the entire range of operating conditions [1]. During BC, a large quantity of information is created and types of the information are also diverse. The most common types include drawings, inspection documents, specifications of equipment, manuals...

Lee, S. H.; Akin, O.

2005-01-01T23:59:59.000Z

184

Aircraft System Identification Using Artificial Neural Networks  

E-Print Network [OSTI]

Aircraft System Identification Using Artificial Neural Networks Kenton Kirkpatrick , Jim May Jr Artificial Neural Network System Identification, has the advantages of being straightforward with low for aircraft using an artificial neural network (ANN). Artificial neural networks are useful for creating

Valasek, John

185

Muon Identification in the ATLAS Calorimeters  

E-Print Network [OSTI]

Muon Identification in the ATLAS Calorimeters #12;#12;Muon Identification in the ATLAS Calorimeters . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.2.3 Muon spectrometer . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2.2.4 The forward . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.2.6 The trigger system . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3 Muon

van Suijlekom, Walter

186

Parameters Identification for Motorcycle Simulator's Platform Characterization  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

187

Intelligent Radio Frequency (RF) Monitoring  

E-Print Network [OSTI]

? Intelligent Radio Frequency (RF) Monitoring ? 2009 Armstrong International, Inc. www.armstronginternational.com 2 ?Expect many enjoyable experiences!? David M. Armstrong Present Process Challenges ? Identifying a failure ? Procedure.... Armstrong Steam Trap Challenges ? Identifying a failure ? Manpower ? Location ? Magnitude of failure ? Energy loss ? Loss of heat transfer ? Justification for repair ? ?Speed of Implementation? ? Environmental concerns Manpower Location 4...

Kimbrough, B.

188

HCI gesture tracking using wearable passive tags  

E-Print Network [OSTI]

In this thesis. a wearable system is developed to track hand gestures with passive RFID sensor tags. This system was composed of an ultra-high frequency reader and small, passive, finger-worn tags powered by scavenged RFID ...

Bainbridge, Rachel M

2010-01-01T23:59:59.000Z

189

Detection and species identification of baleen whale calls  

Science Journals Connector (OSTI)

Baleen whales live over extensive home range and time scales. Study of how these animals use their vocalizations for communication requires massive data sampling over long periods. This paper describes a system for automating the sampling and analysis of baleen whale calls. Many species produce stable homogeneous call structures which lend themselves to automated species identification. We have benchmarked a series of bioacoustical call identification algorithms against a set of blue and fin whale calls while systematically manipulating the signal?to?noise ratio. Blue (Balaenoptera musculus) and fin (B. physalus) whale calls are very stereotypical. Blue whale ‘‘A’’ and ‘‘B’’ calls have fundamental frequencies of approximately 17 Hz narrow bandwidth well?defined harmonic structure and typical duration of 15–25 s. Fin whale ‘‘pulses’’ have fundamental frequencies of approximately 17 Hz but are broadband in nature and short (approximately 1?s) duration. The results demonstrated a typical tradeoff of speed versus accuracy. The best algorithm was inserted into an underwater sound recording system and its signal?detection theoretic performance was quantified. Results will be discussed with respect to technological ecological and conservation aspects of baleen whale bioacoustics. [Project CS?1082 of the Strategic Environmental Research and Development Program.

David A. Helweg

1999-01-01T23:59:59.000Z

190

Automated species identification: why not?  

Science Journals Connector (OSTI)

...exhibiting basically the same body plan, a pro- portion of which may...to transform the images to a standard pose. In addition, many identifi...species identified database mining engines, etc. (a) (b...for pest identification: a review. In The identifi- cation and...

2004-01-01T23:59:59.000Z

191

Summary Protocol: Identification, Characterization, Designation, Remedial  

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

Summary Protocol: Identification, Characterization, Designation, Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification (January 1986) Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification (January 1986) More Documents & Publications Supplement No. 1 to the FUSRAP Summary Protocol - Designation/Elimination Protocol Pre-MARSSIM Surveys in a MARSSIM World: Demonstrating How Pre-MARSSIM Radiological Data Demonstrate Protectiveness at Formerly Utilized Sites Remedial Action Program Sites U.S. Department of Energy Guidelines for Residual Radioactive Material at

192

Variable frequency microwave furnace system  

DOE Patents [OSTI]

A variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency microwave furnace system (10) includes a microwave signal generator (12) or microwave voltage-controlled oscillator (14) for generating a low-power microwave signal for input to the microwave furnace. A first amplifier (18) may be provided to amplify the magnitude of the signal output from the microwave signal generator (12) or the microwave voltage-controlled oscillator (14). A second amplifier (20) is provided for processing the signal output by the first amplifier (18). The second amplifier (20) outputs the microwave signal input to the furnace cavity (34). In the preferred embodiment, the second amplifier (20) is a traveling-wave tube (TWT). A power supply (22) is provided for operation of the second amplifier (20). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

Bible, Don W. (Clinton, TN); Lauf, Robert J. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

193

Variable frequency microwave furnace system  

DOE Patents [OSTI]

A variable frequency microwave furnace system designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity for testing or other selected applications. The variable frequency microwave furnace system includes a microwave signal generator or microwave voltage-controlled oscillator for generating a low-power microwave signal for input to the microwave furnace. A first amplifier may be provided to amplify the magnitude of the signal output from the microwave signal generator or the microwave voltage-controlled oscillator. A second amplifier is provided for processing the signal output by the first amplifier. The second amplifier outputs the microwave signal input to the furnace cavity. In the preferred embodiment, the second amplifier is a traveling-wave tube (TWT). A power supply is provided for operation of the second amplifier. A directional coupler is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter is provided for measuring the power delivered to the microwave furnace. A second power meter detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load. 5 figs.

Bible, D.W.; Lauf, R.J.

1994-06-14T23:59:59.000Z

194

Mitigating container security risk using real-time monitoring with active Radio Frequency Identification and sensors  

E-Print Network [OSTI]

The global village in which we live enables increased trade and commerce across regions but also brings a complicated new set of challenges such as terrorist activity, human and drug smuggling and theft in foreign or ...

Schlesinger, Adam Ian

2005-01-01T23:59:59.000Z

195

Radio-frequency identification could help reduce the spread of plant pathogens  

E-Print Network [OSTI]

identifying and verifying agrochemicals in food traceabilitytreatment specifics (agrochemicals and dates of treatment),ing and application of agrochemicals and Database links

Luvisi, Andrea; Panattoni, Alessandra; Triolo, Enrico

2012-01-01T23:59:59.000Z

196

Pressure-induced OH frequency downshift in brucite: frequency-distance and frequency-field correlations  

Science Journals Connector (OSTI)

The ordered Mg(OH)2 crystal structure has been optimized for different pressures in the pressure range 0-21 GPa, within the trigonal P m1 space group. Anharmonic frequencies for the Raman-active OH vibrational mode were calculated from potential energy curves obtained by B3LYP and PW91 calculations with the CRYSTAL06 program. We find that an external pressure leads to an OH frequency downshift, in agreement with experiment, but there are no hydrogen bonds involved. The frequency downshift depends linearly on the electric field exerted on the OH ions from its neighbours in the 'opposite' layer. In agreement with experiment we also find that the pressure-induced 'v(OH) vs. interlayer R(O - - - O)' curve deviates from the well established correlation curves for hydrogen-bonded systems in the literature; the ?v/?R slope for high pressure conditions is much smaller. We also point out the merits of reporting both v(OH) and ?vgas-to-solid for comparison with experiment.

K Hermansson; G Gajewski; P D Mitev

2008-01-01T23:59:59.000Z

197

Frequency Control Performance Measurement and Requirements  

E-Print Network [OSTI]

changes in dispatch to follow load, implement interchangerequired for load frequency regulation, it follows that afollows [4]: “System frequency deviation and the resulting time error indicated the total imbalance of generation and load

Illian, Howard F.

2011-01-01T23:59:59.000Z

198

Frequency Synthesis in Wireless and Wireline Systems  

E-Print Network [OSTI]

First, a frequency synthesizer for IEEE 802.15.4 / ZigBee transceiver applications that employs dynamic True Single Phase Clocking (TSPC) circuits in its frequency dividers is presented and through the analysis and measurement results...

Turker, Didem 1981-

2010-12-06T23:59:59.000Z

199

Frequency domain design of interval controller  

E-Print Network [OSTI]

significant role in the analysis and design of interval systems. Its external properties are also discussed. The image set approach & frequency domain criteria can be used to calculate the IP stability margin. The frequency domain criteria are used...

Park, Wunyong

1993-01-01T23:59:59.000Z

200

Muon Reconstruction and Identification in CMS  

SciTech Connect (OSTI)

We present the design strategies and status of the CMS muon reconstruction and identification identification software. Muon reconstruction and identification is accomplished through a variety of complementary algorithms. The CMS muon reconstruction software is based on a Kalman filter technique and reconstructs muons in the standalone muon system, using information from all three types of muon detectors, and links the resulting muon tracks with tracks reconstructed in the silicon tracker. In addition, a muon identification algorithm has been developed which tries to identify muons with high efficiency while maintaining a low probability of misidentification. The muon identification algorithm is complementary by design to the muon reconstruction algorithm that starts track reconstruction in the muon detectors. The identification algorithm accepts reconstructed tracks from the inner tracker and attempts to quantify the muon compatibility for each track using associated calorimeter and muon detector hit information. The performance status is based on detailed detector simulations as well as initial studies using cosmic muon data.

Everett, A. [Purdue University, West Lafayette, IN, 47906 (United States)

2010-02-10T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

METHODS OF RADIO-FREQUENCY CURRENT DRIVE  

E-Print Network [OSTI]

METHODS OF RADIO-FREQUENCY CURRENT DRIVE N. J. FISCH* Princeton Plasma Physics Laboratory-670 Radio-frequency waves can penetrate thermonuclear plasmas, depositing momentum and energy with great. INTRODUCTION Using radio-frequency (rf) waves to drive the toroidal current in tokamak reactors is attractive

202

Heterodyne laser instantaneous frequency measurement system  

DOE Patents [OSTI]

A heterodyne laser instantaneous frequency measurement system is disclosed. The system utilizes heterodyning of a pulsed laser beam with a continuous wave laser beam to form a beat signal. The beat signal is processed by a controller or computer which determines both the average frequency of the laser pulse and any changes or chirp of th frequency during the pulse.

Wyeth, Richard W. (Livermore, CA); Johnson, Michael A. (Pleasanton, CA); Globig, Michael A. (Livermore, CA)

1989-01-01T23:59:59.000Z

203

Frequency–dependent numerical dynamics in mosquitofish  

Science Journals Connector (OSTI)

...can invade, but not drive the others extinct...equilibrium of genotype frequencies and total numbers...replication in the low-frequency treatment because the...treatment to be more variable. Mesocosms were established...from throw-trap data Frequency-dependent numerical...

2002-01-01T23:59:59.000Z

204

Identification of Hazards, 3/9/95  

Broader source: Energy.gov [DOE]

The objective of this surveillance is to evaluate the effectiveness of the contractor's hazards identification programs.  Surveillance activities encompass maintenance and implementation of safety...

205

Muon Identification in the LHCb experiment  

E-Print Network [OSTI]

A short summary of the LHCb muon identification procedure is given in this article. First, the muon system of LHCb is presented, together with some examples of physics measurements of the experiment where the muon identification is crucial. Then, the muon identification algorithm is introduced in three single steps. With this, the efficiency vs. misidentification rate is shown for MC simulated data. The way this method will be calibrated with real data is also seen. Finally, some preliminary muon identification results with proton-proton collisions at sqrt(s) = 900 GeV are presented.

X. Cid Vidal

2010-05-14T23:59:59.000Z

206

Multiple frequency method for operating electrochemical sensors  

DOE Patents [OSTI]

A multiple frequency method for the operation of a sensor to measure a parameter of interest using calibration information including the steps of exciting the sensor at a first frequency providing a first sensor response, exciting the sensor at a second frequency providing a second sensor response, using the second sensor response at the second frequency and the calibration information to produce a calculated concentration of the interfering parameters, using the first sensor response at the first frequency, the calculated concentration of the interfering parameters, and the calibration information to measure the parameter of interest.

Martin, Louis P. (San Ramon, CA)

2012-05-15T23:59:59.000Z

207

Common Aquatic Plants -- Identification, Control.  

E-Print Network [OSTI]

of leaves: (1) floating and firm textured and (2) submersed, thin linear and membranous. Numerous pencil-like spikes are visible beneath the pond surface in early summer. Stems are jointed and have fibrous roots at the lower nodes. Identification within.... FLOATING PLANTS WATER STAR GRASS Heteranthera sp. (Mud plantain) Water star grass, a submersed or floating rooted plant, usually is found along muddy shores and in water up to 5 ft. deep. The leaves are approximately 2 inches long and 3/16 inch wide...

Klussmann, Wallace G. (Wallace Glenn); Lowman, Fred G.

1964-01-01T23:59:59.000Z

208

Sameh AbdelNaby Trento 19/4/2006  

E-Print Network [OSTI]

Other Obstacles www.spychips.com Was founded in October 1999. Began tackling the RFID issue in 2002RFIDING Sameh AbdelNaby Trento ­ 19/4/2006 #12;Trento - 19/4/2006. 2 AGENDA What is RFID? How it works? What is happening? Expectations Obstacles #12;Trento - 19/4/2006. 3 What is RFID? Radio Frequency

209

The Frequency Ratio Method for the seismic modelling of gamma Doradus stars. II The role of rotation  

E-Print Network [OSTI]

The effect of rotation on the Frequency Ratio Method (Moya et al. 2005) is examined. Its applicability to observed frequencies of rotating gamma Doradus stars is discussed taking into account the following aspects: the use of a perturbative approach to compute adiabatic oscillation frequencies; the effect of rotation on the observational Brunt-Vaisala integral determination and finally, the problem of disentangling multiplet-like structures from frequency patterns due to the period spacing expected for high-order gravity modes in asymptotic regime. This analysis reveals that the FRM produces reliable results for objects with rotational velocities up to 70 kms/s, for which the FRM intrinsic error increases one order of magnitude with respect to the typical FRM errors given in Moya et al. (2005). Our computations suggest that, given the spherical degree "l" identification, the FRM may be discriminating for m = 0 modes, in the sense that the method avoids any misinterpretation induced by the presence of rotation...

Suárez, J C; Martin-Ruiz, S; Amado, P J; Garrido, A G R

2005-01-01T23:59:59.000Z

210

The characteristics of atmospheric radio frequency discharges with frequency increasing at a constant power density  

SciTech Connect (OSTI)

A computational model is used to investigate the characteristics of atmospheric radio frequency discharges by increasing frequency from 20 to 100 MHz at a constant power density. The simulation results show that increasing frequency can effectively enhance electron density before the transition frequency but after it the ignition is quenched then the electron density decreases. However this simulation also indicates the maximum time-averaged electron energy reduces monotonically with the excitation frequency increasing at a constant power density.

Zhang Yuantao; Li Qingquan; Lou Jie; Li Qingmin [School of Electrical Engineering, Shandong University, Jinan, Shandong Province 250061 (China)

2010-10-04T23:59:59.000Z

211

Identification  

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

a a Bifunctional UDP-4-keto-pentose/UDP-xylose Synthase in the Plant Pathogenic Bacterium Ralstonia solanacearum Strain GMI1000, a Distinct Member of the 4,6-Dehydratase and Decarboxylase Family * □ S Received for publication, September 16, 2009, and in revised form, January 15, 2010 Published, JBC Papers in Press, January 29, 2010, DOI 10.1074/jbc.M109.066803 Xiaogang Gu ‡ , John Glushka ‡ , Yanbin Yin § , Ying Xu § , Timothy Denny ¶ , James Smith ‡ , Yingnan Jiang ‡ , and Maor Bar-Peled ‡ʈ1 From the ‡ Complex Carbohydrate Research Center, the § Computational System Biology Laboratory, Department of Biochemistry and Molecular Biology, and the Institute of Bioinformatics, and the Departments of ¶ Plant Pathogen and ʈ Plant Biology, University of Georgia, Athens, Georgia 30602 The UDP-sugar interconverting enzymes involved in UDP- GlcA metabolism are well

212

Identification  

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

Novel Novel Proteins Involved in Plant Cell-Wall Synthesis Based on Protein-Protein Interaction Data Chan Zhou, †,‡ Yanbin Yin, †,‡ Phuongan Dam, †,‡ and Ying Xu* ,†,‡,§ Computational Systems Biology Laboratory, Department of Biochemistry and Molecular Biology, and Institute of Bioinformatics, University of Georgia, Athens, Georgia 30602, BioEnergy Science Center (http:// genomicsgtl.energy.gov/centers/), Oak Ridge, Tennessee 37831, and College of Computer Science and Technology, Jilin University, Changchun, Jilin 130012, China Received April 4, 2010 The plant cell wall is mainly composed of polysaccharides, representing the richest source of biomass for future biofuel production. Currently, the majority of the cell-wall synthesis-related (CWSR) proteins are unknown even for model plant Arabidopsis thaliana. We report a computational framework

213

Discovery and application of Frequency Ratio Method to the new multiperiodic gamma Dor star HD 218427  

E-Print Network [OSTI]

gamma Dor-type oscillations have been discovered in the star HD218427 through simultaneous uvby photometric observations carried out in the year 2003. A few Hbeta-Crawford measurements were also collected for calibration purposes which place this star well-located inside the gamma Dor instability region. Deficiency in metal content, similar to other well-defined gamma Dor stars, is found in HD218427 and the possibility of a lambda Boo nature is discussed. Frequency analysis was carried out for different filters, the combined "vby" filter was also used and five frequencies were found as significant with periods ranging between 0.3 and 0.8 days. The recently developed Frequency Ratio Method is used in order to perform an identification of the excited modes. The results are consistent with an l=2 identification for all the modes and high radial quantum numbers (n~40) for the three main observed periodicities. The possibility of multiplet structures is also discussed. However, no consistency is found when the Tim...

Rodríguez, E; Suárez, J C; Moya, A; Dupret, M A; Poretti, E; Grigahcene, A; Costa, V; Lopez-Gonzalez, M J

2006-01-01T23:59:59.000Z

214

X-Ray Identification of Element 104  

Science Journals Connector (OSTI)

The daughter x-ray identification technique has been applied to the identification of element 104. The characteristic K-series x rays from the ?-decay daughter isotope, nobelium (Z=102), have been observed in coincidence with ? particles from the decay of 4.5-sec 104257, thus providing an unequivocal determination of the parent atomic number, Z=104.

C. E. Bemis; Jr.; R. J. Silva; D. C. Hensley; O. L. Keller; Jr.; J. R. Tarrant; L. D. Hunt; P. F. Dittner; R. L. Hahn; C. D. Goodman

1973-09-03T23:59:59.000Z

215

INVESTIGATION Allele Identification for Transcriptome-Based  

E-Print Network [OSTI]

INVESTIGATION Allele Identification for Transcriptome-Based Population Genomics in the Invasive, and AllelePipe for clustering of loci and allele identification in assembled datasets with or without are now making bulk sequencing of the genome practical for allele discovery in nonmodel and outbred study

Rieseberg, Loren

216

Vibration–based structural damage identification  

Science Journals Connector (OSTI)

...N. A. J. Lieven and D. J. Ewins Vibration-based structural damage identification...identification based upon changes in vibration characteristics is one of the few methods...last thirty years is first presented. Vibration-based damage detection is a primary...

2001-01-01T23:59:59.000Z

217

Stable Isotope, Site-Specific Mass Tagging For Protein Identification  

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

Stable Isotope, Site-Specific Mass Tagging For Protein Identification Stable Isotope, Site-Specific Mass Tagging For Protein Identification Proteolytic peptide mass mapping as...

218

The driving frequency effects on the atmospheric pressure corona jet plasmas from low frequency to radio frequency  

Science Journals Connector (OSTI)

Lately the atmospheric pressure jet type coronaplasma which has been typically driven by dc to low frequency (LF: several tens of kHz) is often generated by using radio frequency of 13.56 MHz. Yet the relationship between the plasma and its driving frequency has seldom been investigated. Hence in this study dependence of the atmospheric pressurecoronaplasmacharacteristics on the driving frequency was explored experimentally from LF to rf (5 kHz–13.56 MHz). The plasmas generated by the driving frequency under 2 MHz were cylindrical shape of several tens of millimeters long while the 13.56 MHz plasma is spherical and a few millimeters long. As the driving frequency was increased the plasma length became shortened. At the lower driving frequencies (below 2 MHz) the plasmas existed as positive streamer and negative glow for each half period of the applied voltage but the discharge was more continuous in time for the 13.56 MHz plasma. It was inferred from the measured I–V curves that the higher driving frequency induced higher discharge currents and the gas temperature was increased as the driving frequency was increased.

Dan Bee Kim; H. Jung; B. Gweon; S. Y. Moon; J. K. Rhee; W. Choe

2011-01-01T23:59:59.000Z

219

Physical and Mathematical Description of Nuclear Weapons Identification System (NWIS) Signatures  

SciTech Connect (OSTI)

This report describes all time and frequency analysis parameters measured with the new Nuclear Weapons Identification System (NWIS) processor with three input channels: (1) the 252Cf source ionization chamber (2) a detection channel; and (3) a second detection channel for active measurements. An intuitive and physical description of the various functions is given as well as a brief mathematical description and a brief description of how the data are acquired. If the fill five channel capability is used, the number of functions increases in number but not in type. The parameters provided by this new NWIS processor can be divided into two general classes: time analysis signatures including multiplicities and frequency analysis signatures. Data from measurements with an 18.75 kg highly enriched uranium (93.2 wt 0/0, 235U) metai casting for storage are presented to illustrate the various time and frequency analysis parameters.

Mattingly, J.K.; Mihalczo, J.T.; Mullens, J.A.; Valentine, T.E.

1997-09-26T23:59:59.000Z

220

On frequency dependence of pulsar linear polarization  

E-Print Network [OSTI]

Frequency dependence of pulsar linear polarization is investigated by simulations of emission and propagation processes. Linearly polarized waves are generated through curvature radiation by relativistic particles streaming along curved magnetic field lines, which have ordinary mode (O-mode) and extra-ordinary mode (X-mode) components. As emitted waves propagate outwards, two mode components are separated due to re- fraction of the O mode, and their polarization states are also modified. According to the radius to frequency mapping, low frequency emission is generated from higher magnetosphere, where significant rotation effect leads the X and O modes to be sepa- rated. Hence, the low frequency radiation has a large fraction of linear polarization. As the frequency increases, emission is generated from lower heights, where the rotation effect becomes weaker and the distribution regions of two modes are more overlapped. Hence, more significant depolarization appears for emission at higher frequencies. In addit...

Wang, P F; Han, J L

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Wide band stepped frequency ground penetrating radar  

DOE Patents [OSTI]

A wide band ground penetrating radar system (10) embodying a method wherein a series of radio frequency signals (60) is produced by a single radio frequency source (16) and provided to a transmit antenna (26) for transmission to a target (54) and reflection therefrom to a receive antenna (28). A phase modulator (18) modulates those portion of the radio frequency signals (62) to be transmitted and the reflected modulated signal (62) is combined in a mixer (34) with the original radio frequency signal (60) to produce a resultant signal (53) which is demodulated to produce a series of direct current voltage signals (66) the envelope of which forms a cosine wave shaped plot (68) which is processed by a Fast Fourier Transform unit 44 into frequency domain data (70) wherein the position of a preponderant frequency is indicative of distance to the target (54) and magnitude is indicative of the signature of the target (54).

Bashforth, Michael B. (Buellton, CA); Gardner, Duane (Santa Maria, CA); Patrick, Douglas (Santa Maria, CA); Lewallen, Tricia A. (Ventura, CA); Nammath, Sharyn R. (Santa Barbara, CA); Painter, Kelly D. (Goleta, CA); Vadnais, Kenneth G. (Alexandria, VA)

1996-01-01T23:59:59.000Z

222

Frequency modulation drive for a piezoelectric motor  

DOE Patents [OSTI]

A piezoelectric motor has peak performance at a specific frequency f.sub.1 that may vary over a range of frequencies. A drive system is disclosed for operating such a motor at peak performance without feedback. The drive system consists of the motor and an ac source connected to power the motor, the ac source repeatedly generating a frequency over a range from f.sub.1 -.DELTA.x to f.sub.1 +.DELTA.y.

Mittas, Anthony (Albuquerque, NM)

2001-01-01T23:59:59.000Z

223

Frequencies Studies Applied to Photovoltaic Modules.  

E-Print Network [OSTI]

?? This master thesis proposes to study applications of frequencies studies to the case of photovoltaic modules and photovoltaic plants. Such studies are little used… (more)

Miquel, Clément

2011-01-01T23:59:59.000Z

224

High-Frequency Electrostatic Plasma Instabilities  

Science Journals Connector (OSTI)

A description of the stability properties of a plasma under the influence of an external electric field oscillating near the plasma frequency is presented.

J. P. Freidberg and B. M. Marder

1971-10-01T23:59:59.000Z

225

High-frequency, high-intensity photoionization  

Science Journals Connector (OSTI)

Two analytical methods for computing ionization by high-frequency fields are compared. Predicted ionization rates compare well, but energy predictions for the onset of ionization...

Reiss, H R

1996-01-01T23:59:59.000Z

226

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

227

Enhancer Identification through Comparative Genomics  

SciTech Connect (OSTI)

With the availability of genomic sequence from numerousvertebrates, a paradigm shift has occurred in the identification ofdistant-acting gene regulatory elements. In contrast to traditionalgene-centric studies in which investigators randomly scanned genomicfragments that flank genes of interest in functional assays, the modernapproach begins electronically with publicly available comparativesequence datasets that provide investigators with prioritized lists ofputative functional sequences based on their evolutionary conservation.However, although a large number of tools and resources are nowavailable, application of comparative genomic approaches remains far fromtrivial. In particular, it requires users to dynamically consider thespecies and methods for comparison depending on the specific biologicalquestion under investigation. While there is currently no single generalrule to this end, it is clear that when applied appropriately,comparative genomic approaches exponentially increase our power ingenerating biological hypotheses for subsequent experimentaltesting.

Visel, Axel; Bristow, James; Pennacchio, Len A.

2006-10-01T23:59:59.000Z

228

Identification of process suitable diluent  

SciTech Connect (OSTI)

The Sigma Team for Minor Actinide Separation (STMAS) was formed within the USDOE Fuel Cycle Research and Development (FCRD) program in order to develop more efficient methods for the separation of americium and other minor actinides (MA) from used nuclear fuel. The development of processes for MA separations is driven by the potential benefits; reduced long-term radiotoxicty of waste placed in a geologic repository, reduced timeframe of waste storage, reduced repository heat load, the possibility of increased repository capacity, and increased utilization of energy potential of used nuclear fuel. The research conducted within the STMAS framework is focused upon the realization of significant simplifications to aqueous recycle processes proposed for MA separations. This report describes the research efforts focused upon the identification of a process suitable diluent for a flowsheet concept for the separation of MA which is based upon the dithiophosphinic acid (DPAH) extractants previously developed at the Idaho National Laboratory (INL).

Dean R. Peterman

2014-01-01T23:59:59.000Z

229

Drilling Waste Management Technology Identification Module  

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

you are in this section Technology Identification you are in this section Technology Identification Home » Technology Identification Drilling Waste Management Technology Identification Module The Technology Identification Module is an interactive tool for identifying appropriate drilling waste management strategies for a given well location and circumstances. The Technology Identification Module follows the philosophy of a waste management hierarchy. Waste management options with the lowest environmental impacts are encouraged ahead of those with more significant environmental impacts. The Technology Identification Module helps identify waste management options, but users should also consider their own site-specific costs and waste volumes. How it Works Users will be asked to answer a series of questions about the location of the well site, physical features of the site that may allow or inhibit the use of various options, whether the regulatory agency with jurisdiction allows or prohibits particular options, and whether cost or the user's company policy would preclude any options. Nearly all questions are set up for only "yes" or "no" responses. Depending on how the initial questions are answered, users will face from 15 to 35 total questions. Some of these can be answered immediately, while others may require some additional investigation of other portions of this web site or external information. Suitable options will be identified as users complete the questions, and users will be able to print out a summary of suitable options when the process is completed.

230

Word length and frequency as determinants of stuttering  

Science Journals Connector (OSTI)

Word length and Frequency were independently varied to assess their effect on stuttering frequency. The list of test words contained ... low, medium of high frequency of occurrence. Stuttering frequency of 31 you...

I. M. Schlesinger; Rachel Melkman; Ron Levy

1966-06-01T23:59:59.000Z

231

Advanced Techniques for Power System Identification from Measured Data  

SciTech Connect (OSTI)

Time-synchronized measurements provide rich information for estimating a power-system's electromechanical modal properties via advanced signal processing. This information is becoming critical for the improved operational reliability of interconnected grids. A given mode's properties are described by its frequency, damping, and shape. Modal frequencies and damping are useful indicators of power-system stress, usually declining with increased load or reduced grid capacity. Mode shape provides critical information for operational control actions. This project investigated many advanced techniques for power system identification from measured data focusing on mode frequency and damping ratio estimation. Investigators from the three universities coordinated their effort with Pacific Northwest National Laboratory (PNNL). Significant progress was made on developing appropriate techniques for system identification with confidence intervals and testing those techniques on field measured data and through simulation. Experimental data from the western area power system was provided by PNNL and Bonneville Power Administration (BPA) for both ambient conditions and for signal injection tests. Three large-scale tests were conducted for the western area in 2005 and 2006. Measured field PMU (Phasor Measurement Unit) data was provided to the three universities. A 19-machine simulation model was enhanced for testing the system identification algorithms. Extensive simulations were run with this model to test the performance of the algorithms. University of Wyoming researchers participated in four primary activities: (1) Block and adaptive processing techniques for mode estimation from ambient signals and probing signals, (2) confidence interval estimation, (3) probing signal design and injection method analysis, and (4) performance assessment and validation from simulated and field measured data. Subspace based methods have been use to improve previous results from block processing techniques. Bootstrap techniques have been developed to estimate confidence intervals for the electromechanical modes from field measured data. Results were obtained using injected signal data provided by BPA. A new probing signal was designed that puts more strength into the signal for a given maximum peak to peak swing. Further simulations were conducted on a model based on measured data and with the modifications of the 19-machine simulation model. Montana Tech researchers participated in two primary activities: (1) continued development of the 19-machine simulation test system to include a DC line; and (2) extensive simulation analysis of the various system identification algorithms and bootstrap techniques using the 19 machine model. Researchers at the University of Alaska-Fairbanks focused on the development and testing of adaptive filter algorithms for mode estimation using data generated from simulation models and on data provided in collaboration with BPA and PNNL. There efforts consist of pre-processing field data, testing and refining adaptive filter techniques (specifically the Least Mean Squares (LMS), the Adaptive Step-size LMS (ASLMS), and Error Tracking (ET) algorithms). They also improved convergence of the adaptive algorithms by using an initial estimate from block processing AR method to initialize the weight vector for LMS. Extensive testing was performed on simulated data from the 19 machine model. This project was also extensively involved in the WECC (Western Electricity Coordinating Council) system wide tests carried out in 2005 and 2006. These tests involved injecting known probing signals into the western power grid. One of the primary goals of these tests was the reliable estimation of electromechanical mode properties from measured PMU data. Applied to the system were three types of probing inputs: (1) activation of the Chief Joseph Dynamic Brake, (2) mid-level probing at the Pacific DC Intertie (PDCI), and (3) low-level probing on the PDCI. The Chief Joseph Dynamic Brake is a 1400 MW disturbance to the system and is injected for a ha

Pierre, John W.; Wies, Richard; Trudnowski, Daniel

2008-11-25T23:59:59.000Z

232

1 Pitch, Frequency, Musical Scales 1 1.1 Pitch and Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  

E-Print Network [OSTI]

Contents ix 1 Pitch, Frequency, Musical Scales 1 1.1 Pitch and Frequency.2 Overtones, Pitch Equivalence, and Musical Scales . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2.1 Pitch Equivalence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1

Walker, James S.

233

HF heating of a plasma column at frequencies below the electron cyclotron frequency  

Science Journals Connector (OSTI)

Dispersion of waves, excited by the helical structure in a plasma column and the heating of a tail of the electron distribution ... frequencies below the electron plasma and the electron cyclotron frequency.

J. ?atlov; V. Kopecký; J. Musil; F. Žá?ek; K. Novik

1978-01-01T23:59:59.000Z

234

Definition: Frequency Response | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Frequency Response Jump to: navigation, search Dictionary.png Frequency Response (Equipment) The ability of a system or elements of the system to react or respond to a change in system frequency. (System) The sum of the change in demand, plus the change in generation, divided by the change in frequency, expressed in megawatts per 0.1 Hertz (MW/0.1 Hz).[1] View on Wikipedia Wikipedia Definition Related Terms system, smart grid References ↑ Glossary of Terms Used in Reliability Standards An i LikeLike UnlikeLike You like this.Sign Up to see what your friends like. nline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Frequency_Response&oldid=502580"

235

A Dual Tone Multiple Frequency receiver using a multiplexed OTA-C filter frequency detection architecture  

E-Print Network [OSTI]

A DUAL TONE MULTIPLE FREQUENCY RECEIVER USING A MULTIPLEXED OTA-C FILTER FREQUENCY DETECTION ARCHITECTURE A Thesis by GERALD WILLIAM GARCIA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August 1988 Major Subject: Electrical Engineering A DUAL TONE MULTIPLE FREQUENCY RECEIVER USING A MULTIPLEXED OTA-C FILTER FREQUENCY DETECTION ARCHITECTURE A Thesis by GERALD WILLIAM GARCIA Approved as to style...

Garcia, Gerald William

2012-06-07T23:59:59.000Z

236

Coordination of Voltage and Frequency Feedback in Load-Frequency Control Capability of Wind Turbine  

E-Print Network [OSTI]

Coordination of Voltage and Frequency Feedback in Load-Frequency Control Capability of Wind Turbine-Frequency Control (LFC) is gradually shifted to Variable Speed Wind Turbines (VSWTs). In order to equip VSWT@et.aau.dk Abstract--In near future, with high penetration of Wind Energy (WE) in power system, the burden of Load

Silva, Filipe Faria Da

237

Phase-stabilized 167 MHz Repetition Frequency Carbon Nanotube Fiber Laser Frequency Comb  

E-Print Network [OSTI]

Phase-stabilized 167 MHz Repetition Frequency Carbon Nanotube Fiber Laser Frequency Comb Jinkang [2, 3]. Mode-locked fiber lasers using single-walled carbon nanotubes as a saturable absorber have-referenced frequency comb from a fiber laser passively modelocked by single walled carbon nanotubes. The carbon

Washburn, Brian

238

Author Identification in Bengali Literary Works  

Science Journals Connector (OSTI)

In this paper, we study the problem of authorship identification in Bengali literary works. We considered three authors namely Rabindranath Tagore, Bankim Chandra Chattopadhyay and Sukanta Bhattacharyay. It was o...

Suprabhat Das; Pabitra Mitra

2011-01-01T23:59:59.000Z

239

Delaware Transportation Infrastructure Forum Problem Identification Statements  

E-Print Network [OSTI]

2013 Delaware Transportation Infrastructure Forum Problem Identification Statements Sponsored by The Delaware Center for Transportation and the Delaware Department of Transportation Delaware Center for Transportation Your main resource for transportation education and research Identifying Important Issues Related

Firestone, Jeremy

240

Morphometric identification of fossil spiders: Comment  

Science Journals Connector (OSTI)

Kinchloe Roberts et al. (2008) proposed a technique, using outline-morphometric and linear analyses to permit identification of spider compression fossils to family level. This work focussed on fossil spiders ...

D. Penney; A. M. Langan

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Identification and control of a flexible structure  

E-Print Network [OSTI]

This thesis describes the identification and vibration ics. control of a cantilevered beam with piezoelectric material as actuators and sensors. The Euler-Bernoulli beam equation is used and gravity contribution to the stiffness matrix is included...

Huang, Haiming

1998-01-01T23:59:59.000Z

242

Ethnic identification among blacks and whites  

E-Print Network [OSTI]

Two central questions drive this research: (1) Are there trends in ethnic identification among blacks and whites; and (2) Are there meaningful differences between groups that identify differently? I use descriptive and regression analysis...

Glass, Teresa Gail

1996-01-01T23:59:59.000Z

243

Feature identification framework and applications (FIFA)  

E-Print Network [OSTI]

collections that provides a general framework for applications while allowing decisions about the details of document representation and features identification to be deferred to domain specific implementations of that framework. These deferred decisions...

Audenaert, Michael Neal

2006-04-12T23:59:59.000Z

244

Identification of Information in Decision Systems  

E-Print Network [OSTI]

Extending unique identification to non-physical objects (data, information, decisions, knowledge) is a challenging problem in systems engineering. The tools and technologies available for naming physical objects may soon ...

Datta, Shoumen

2007-01-01T23:59:59.000Z

245

Complex Technical System Operation Processes Identification  

Science Journals Connector (OSTI)

The methods of identification of the operation processes of complex technical systems are presented. These are methods and procedures ... for estimating the unknown basic parameters of the system operation proces...

Krzysztof Ko?owrocki; Joanna Soszy?ska-Budny

2011-01-01T23:59:59.000Z

246

Nonlinear system identification using the MRAS technique and hyperstability concepts  

E-Print Network [OSTI]

is presented. The algorithm is theoretically derived and proved hyperstable by extension of previous linear, hyperstabie response error MRAS identification techniques. Generalization and unification of pre- vious empirical nonlinear identification... Identification - Application of Hyperstability An important MRAS identification approach is known as "parallel MRAS" or response error (RE), Fig. 4. This method of identification was developed by Landau [17-18], Hang [15-16], and Johnson [19...

Schatte, Alvin Robert

1982-01-01T23:59:59.000Z

247

Turbine bucket natural frequency tuning rib  

DOE Patents [OSTI]

A tuning rib is added preferably in the aft cavity of a cored turbine bucket to alter the bucket's natural frequencies. The tuning rib may be a solid rib or a segmented rib and is particularly suited for altering high order frequency modes such as 2T, 4F and 1-3S. As such, detrimental crossings of natural bucket frequencies and gas turbine stimuli can be avoided to thereby improve the reliability of a gas turbine without impacting other features of the bucket that are important to the performance of the gas turbine.

Wang, John Zhiqiang (Greenville, SC); Norton, Paul Francis (Greenville, SC); Barb, Kevin Joseph (Halfmoon, NY); Jacala, Ariel Caesar-Prepena (Simpsonville, SC)

2002-01-01T23:59:59.000Z

248

High power radio frequency attenuation device  

DOE Patents [OSTI]

A resistor device for attenuating radio frequency power includes a radio frequency conductor connected to a series of fins formed of high relative magnetic permeability material. The fins are dimensional to accommodate the skin depth of the current conduction therethrough, as well as an inner heat conducting portion where current does not travel. Thermal connections for air or water cooling are provided for the inner heat conducting portions of each fin. Also disclosed is a resistor device to selectively alternate unwanted radio frequency energy in a resonant cavity.

Kerns, Quentin A. (Bloomingdale, IL); Miller, Harold W. (Winfield, IL)

1984-01-01T23:59:59.000Z

249

Component external leakage and rupture frequency estimates  

SciTech Connect (OSTI)

In order to perform detailed internal flooding risk analyses of nuclear power plants, external leakage and rupture frequencies are needed for various types of components - piping, valves, pumps, flanges, and others. However, there appears to be no up-to-date, comprehensive source for such frequency estimates. This report attempts to fill that void. Based on a comprehensive search of Licensee Event Reports (LERs) contained in Nuclear Power Experience (NPE), and estimates of component populations and exposure times, component external leakage and rupture frequencies were generated. The remainder of this report covers the specifies of the NPE search for external leakage and rupture events, analysis of the data, a comparison with frequency estimates from other sources, and a discussion of the results.

Eide, S.A.; Khericha, S.T.; Calley, M.B.; Johnson, D.A.; Marteeny, M.L.

1991-11-01T23:59:59.000Z

250

Characterization of arcs in frequency domain  

SciTech Connect (OSTI)

Arc detection systems are developed for ICRH on ITER to prevent arcs from damaging the RF components. One of the detectors, the Sub-Harmonic Arc Detector (SHAD) is based on the detection of the frequencies emitted in the MHz range by arcs [R1]. To ensure the high level of reliability required for this safety system, it is necessary to demonstrate that these frequencies present a signal with a Signal to Noise Ratio high enough to be detected under the wide range of operational conditions (frequency, power, configuration) and for the different types of arcs that can appear in the feeding lines and on the antennas (vacuum arc, glow discharge, multipactor-induced discharge). For each type of arc, we analyze the evolution of the frequency spectrum relative to the evolution of other electrical parameters (reflected power, voltage)

D'Inca, R.; Siegl, G.; Faugel, H.; Braun, F.; Eckert, B.; Bobkov, V. [Max Planck Institut fuer Plasmaphysik, Garching, Germany, EURATOM Association (Germany); El Khaldi, M. [CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France); Noterdaeme, J.-M. [Max Planck Institut fuer Plasmaphysik, Garching, Germany, EURATOM Association (Germany); Gent University, EESA Department (Belgium)

2009-11-26T23:59:59.000Z

251

Spatial Frequency Filtering Using Nondelineated Thin Films  

Science Journals Connector (OSTI)

We present a new approach for achieving spatial frequency filtering in the analog domain. Our device, the Thin Film Spatial Filter, is a hybrid structure which combines the strengths of analog VLSI technology with the simplicity of a continuous sheet ...

J. Mcelvain; J. Langan; A. J. Heeger

1997-10-01T23:59:59.000Z

252

Laser Doppler vibrometer employing active frequency feedback  

SciTech Connect (OSTI)

We present a heterodyne Michelson interferometer for vibration measurement in which feedback is used to obviate the need to unwrap phase data. The Doppler shift of a vibrating target mirror is sensed interferometrically and compensated by means of a voltage-controlled oscillator driving an acousto-optic modulator. For frequencies within the servo bandwidth, the oscillator control voltage provides a direct measurement of the target velocity. Outside the servo bandwidth, phase-sensitive detection is used to evaluate high-frequency displacements. This approach is of great interest for the frequently-occurring situation where vibration amplitudes at low frequency exceed an optical wavelength, but knowledge of the vibration spectrum at high frequency is important as well.

Chijioke, Akobuije; Lawall, John

2008-09-20T23:59:59.000Z

253

Developing high-frequency equities trading models  

E-Print Network [OSTI]

The purpose of this paper is to show evidence that there are opportunities to generate alpha in the high frequency environment of the US equity market, using Principal Component Analysis (PCA hereafter) as a basis for short ...

Infantino, Leandro Rafael

2010-01-01T23:59:59.000Z

254

Calibration for Frequencies of Stellar Spectral Lines  

E-Print Network [OSTI]

When studying the expansion of the universe, a significant problem is measuring the red shifts of stellar absorption lines with sufficiently high accuracy; this requires extremely accurate reference frequencies for calibration. An important recent...

Gomez, Juana

2010-07-14T23:59:59.000Z

255

Audio classification from time-frequency texture  

E-Print Network [OSTI]

Time-frequency representations of audio signals often resemble texture images. This paper derives a simple audio classification algorithm based on treating sound spectrograms as texture images. The algorithm is inspired ...

Slotine, Jean-Jacques E.

256

Plasma Paramagnetism in Radio-Frequency Fields  

Science Journals Connector (OSTI)

A study by experiment, simulation, and theory has found that a plasma responds paramagnetically to the external rf magnetic field applied perpendicular to the static magnetic field with frequency ?frequency. This effect can be exploited in the rf plugging and heating of plasmas; it explains the earlier rf plugging experiment (type-3 coil) of Watari et al. at Nagoya and possibly the rf heating experiment of Dikii et al. on the Uragan stellarator.

Y. Ohsawa; M. Inutake; T. Tajima; T. Hatori; T. Kamimura

1979-10-22T23:59:59.000Z

257

Extremely high frequency RF effects on electronics.  

SciTech Connect (OSTI)

The objective of this work was to understand the fundamental physics of extremely high frequency RF effects on electronics. To accomplish this objective, we produced models, conducted simulations, and performed measurements to identify the mechanisms of effects as frequency increases into the millimeter-wave regime. Our purpose was to answer the questions, 'What are the tradeoffs between coupling, transmission losses, and device responses as frequency increases?', and, 'How high in frequency do effects on electronic systems continue to occur?' Using full wave electromagnetics codes and a transmission-line/circuit code, we investigated how extremely high-frequency RF propagates on wires and printed circuit board traces. We investigated both field-to-wire coupling and direct illumination of printed circuit boards to determine the significant mechanisms for inducing currents at device terminals. We measured coupling to wires and attenuation along wires for comparison to the simulations, looking at plane-wave coupling as it launches modes onto single and multiconductor structures. We simulated the response of discrete and integrated circuit semiconductor devices to those high-frequency currents and voltages, using SGFramework, the open-source General-purpose Semiconductor Simulator (gss), and Sandia's Charon semiconductor device physics codes. This report documents our findings.

Loubriel, Guillermo Manuel; Vigliano, David; Coleman, Phillip Dale; Williams, Jeffery Thomas; Wouters, Gregg A.; Bacon, Larry Donald; Mar, Alan

2012-01-01T23:59:59.000Z

258

Atmospheric glow discharges from the high-frequency to very high-frequency bands  

Science Journals Connector (OSTI)

This letter reports an experimental investigation of an atmospheric glow discharge in both the high-frequency (HF) band of 3–30 MHz and the very high frequency band of 30–300 MHz. At constant input power increased frequency is found to change little the electron density and to reduce slightly the electron excitation temperature. Significantly an eightfold frequency increase from 20 to 80 MHz leads to a 20-fold increase in the maximum plasma power without plasma constriction. The maximum power density of 355 ? W / cm 3 achieved at 80 MHz is far greater than those reported in the HF band.

J. L. Walsh; F. Iza; M. G. Kong

2008-01-01T23:59:59.000Z

259

Influence of excitation frequency on plasma parameters and etching characteristics of radio-frequency discharges  

Science Journals Connector (OSTI)

Abstract Plasma parameters such as electron density, electron-collision rate, resonance frequency and the bias voltage were shown to be important for the characterization of radio-frequency (RF) plasmas. By means of self-excited electron resonance spectroscopy (SEERS), the plasma parameters were compared at two different frequencies, 13.56 \\{MHz\\} and 40.68 MHz, in argon, oxygen, fluorine and their mixtures at low pressure. Upon increasing the generator frequency, more RF power has to be applied to achieve the same bias voltage. At the lower pressure, the bias voltage indicates the mean energy of the ions impacting on the substrate and causing damage at the surface. The experimental results show that generally more power was dissipated in the plasma instead of the sheath if the frequency of the substrate generator was decreased. This results in a significantly higher electron density at the higher frequency. The increase of mean ion energy, owing to lower sheath thickness, has to be taken into account as a second-order effect. In order to show the influence of frequency for process applications, the etch rate of SiO2 on silicon was determined in CF4. For the same generator power, there is no well-pronounced dependence of the etch rate of SiO2 on silicon (CF4) on the frequency. For the same bias voltage, the etch rate of SiO2 increases roughly with the frequency.

M. Klick; L. Eichhorn; W. Rehak; M. Kammeyer; H. Mischke

1999-01-01T23:59:59.000Z

260

Atmospheric glow discharges from the high-frequency to very high-frequency bands  

SciTech Connect (OSTI)

This letter reports an experimental investigation of an atmospheric glow discharge in both the high-frequency (HF) band of 3-30 MHz and the very high frequency band of 30-300 MHz. At constant input power, increased frequency is found to change little the electron density and to reduce slightly the electron excitation temperature. Significantly, an eightfold frequency increase from 20 to 80 MHz leads to a 20-fold increase in the maximum plasma power without plasma constriction. The maximum power density of 355 W/cm{sup 3} achieved at 80 MHz is far greater than those reported in the HF band.

Walsh, J. L.; Iza, F.; Kong, M. G. [Department of Electronic and Electrical Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU (United Kingdom)

2008-12-22T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Broadband low?frequency sound radiator with high?frequency pump resonator.  

Science Journals Connector (OSTI)

A new type of underwater low?frequency radiator is described. Operation of the radiator is based on the nonlinear conversion of high?frequency acoustic pump energy to low?frequency sound pulsation of the water volume of the open acoustic pump resonator. High?intensity pump waves in the resonator produce cavitation. Water containing bubbles is highly nonlinear (hundreds and even thousands of times more than pure water) and dispersive. Both of these factors and also the use of the pump resonator promote much stronger conversion of pump energy to low?frequency sound in comparison with a parametric radiator. The calculation of the acoustical characteristics is presented.

Dimitri M. Donskoy

1992-01-01T23:59:59.000Z

262

Study of the OCS6 Lattice Using Frequency Maps  

E-Print Network [OSTI]

Frequency maps for the OCS5 and OCS6Frequency maps for the OCS6 lattice for a tune of Q x =tunes. . . . . . . . . Frequency maps for the OCS6 lattice

Reichel, Ina

2007-01-01T23:59:59.000Z

263

Diversity–disturbance relationships: frequency and intensity interact  

Science Journals Connector (OSTI)

...relationship depended on the frequency of disturbances by the...diversity as the response variable and frequency and intensity as factors...unequivocally that the frequency-intensity interaction drives the coexistence of ecologically...

2012-01-01T23:59:59.000Z

264

Frequency Instability Problems in North American Interconnections  

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

Frequency Instability Problems in Frequency Instability Problems in North American Interconnections May 1, 2011 DOE/NETL-2011/1473 Frequency Instability Problems in North American Interconnections Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

265

Frequency dependence of the Chiral Vortical Effect  

E-Print Network [OSTI]

We study the frequency dependence of all the chiral vortical and magnetic conductivities for a relativistic gas of free chiral fermions and for a strongly coupled conformal field theory with holographic dual in four dimensions. Both systems have gauge and gravitational anomalies, and we compute their contribution to the conductivities. The chiral vortical conductivities and the chiral magnetic conductivity in the energy current show a frequency dependence in the form of a delta centered at zero frequency. This highly discontinuous behavior is a natural consequence of the Ward identities that include the energy momentum tensor. We discuss the physical interpretation of this result and its possible implications for the quark gluon plasma as created in heavy ion collisions. In the Appendix we discuss why the chiral magnetic effect seems to vanish in the consistent current for a particular implementation of the axial chemical potential.

Karl Landsteiner; Eugenio Megias; Francisco Peña Benítez

2014-09-18T23:59:59.000Z

266

Electronic Vehicle Identification: Industry Standards, Performance, and Privacy Issues  

E-Print Network [OSTI]

0-5217-P2 Electronic Vehicle Identification: Industry Standards, Performance, and Privacy Issues of existing and potential legislation, and issues in electronic vehicle registration are introduced functions. Keywords: Tolling, electronic vehicle identification, DSRC, standards, performance, electronic

Texas at Austin, University of

267

The identification and function of English prosodic features  

E-Print Network [OSTI]

This thesis contains three sets of studies designed to explore the identification and function of prosodic features in English. The first set of studies explores the identification of prosodic features using prosodic ...

Breen, Mara E

2007-01-01T23:59:59.000Z

268

Sediment Toxicity Identification Evaluations San Francisco Bay Regional Monitoring  

E-Print Network [OSTI]

Sediment Toxicity Identification Evaluations San Francisco Bay Regional Monitoring Program chemicals of concern that may impact the estuary's ecosystem. Toxicity Identification Evaluation (TIE identified weak associations between mortality and bulk-phase chlordane and silver concentrations at Redwood

269

EXPERIMENTAL IDENTIFICATION OF COHESIVE ZONE MODELS FROM THERMOMECHANICAL IMAGING TECHNIQUES  

E-Print Network [OSTI]

1 EXPERIMENTAL IDENTIFICATION OF COHESIVE ZONE MODELS FROM THERMOMECHANICAL IMAGING TECHNIQUES S]. Although CZMs are becoming increasingly powerful, the identification of these models still remains of the ductile material into a purely elastoplastic behaviour related to the bulk response (hardening

Paris-Sud XI, Université de

270

Coordinated Searching and Target Identification Using Teams of Autonomous Agents  

E-Print Network [OSTI]

Coordinated Searching and Target Identification Using Teams of Autonomous Agents Christopher Lum;#12;University of Washington Abstract Coordinated Searching and Target Identification Using Teams of Autonomous & Astronautics Many modern autonomous systems actually require significant human involvement. Often, the amount

Washington at Seattle, University of

271

Oil-Spill Identification by Gas Chromatography-Mass Spectrometry  

Science Journals Connector (OSTI)

...May-June research-article Articles Oil-Spill Identification by Gas Chromatography-Mass Spectrometry...the identification of a contaminant caused by the spilling of oil or oil products in water. A capillary gas chromatography (CGC......

A. Pavlova; D. Papazova

272

Comparative gene identification in mammalian, fly, and fungal genomes  

E-Print Network [OSTI]

An important step in genome interpretation is the accurate identification of protein-coding genes. One approach to gene identification is comparative analysis of the genomes of several related species, to find genes that ...

Lin, Michael F. (Michael Fong-Jay)

2006-01-01T23:59:59.000Z

273

INSTALLATION, COMMISSIONING AND TROUBLE SHOOTING OF VARIABLE FREQUENCY DRIVE.  

E-Print Network [OSTI]

??In this thesis, the installation of variable frequency drive on board a ship is introduced briefly. In this particular study the variable frequency drive was… (more)

Kuituniemi, Santtu

2013-01-01T23:59:59.000Z

274

Adhesive bonding using variable frequency microwave energy  

DOE Patents [OSTI]

Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy.

Lauf, Robert J. (Oak Ridge, TN); McMillan, April D. (Knoxville, TN); Paulauskas, Felix L. (Oak Ridge, TN); Fathi, Zakaryae (Cary, NC); Wei, Jianghua (Raleigh, NC)

1998-01-01T23:59:59.000Z

275

Adhesive bonding using variable frequency microwave energy  

DOE Patents [OSTI]

Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy. 26 figs.

Lauf, R.J.; McMillan, A.D.; Paulauskas, F.L.; Fathi, Z.; Wei, J.

1998-09-08T23:59:59.000Z

276

Adhesive bonding using variable frequency microwave energy  

DOE Patents [OSTI]

Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy. 26 figs.

Lauf, R.J.; McMillan, A.D.; Paulauskas, F.L.; Fathi, Z.; Wei, J.

1998-08-25T23:59:59.000Z

277

LOFAR, a new low frequency radio telescope  

E-Print Network [OSTI]

LOFAR, the Low Frequency Array, is a large radio telescope consisting of approximately 100 soccer-field sized antenna stations spread over a region of 400 km in diameter. It will operate at frequencies from ~10 to 240 MHz, with a resolution at 240 MHz of better than an arcsecond. Its superb sensitivity will allow for studies of a broad range of astrophysical topics, including reionisation, transient radio sources and cosmic rays, distant galaxies and AGNs. In this contribution a status rapport of the LOFAR project and an overview of the science case is presented.

H. J. A. Rottgering

2003-09-19T23:59:59.000Z

278

Seismic isolation systems with distinct multiple frequencies  

DOE Patents [OSTI]

A method and apparatus for isolating a building or other structure from smic vibratory motion which provides increased assurance that large horizontal motion of the structure will not occur than is provided by other isolation systems. Increased assurance that large horizontal motion will not occur is achieved by providing for change of the natural frequency of the support and structure system in response to displacement of the structure beyond a predetermined value. The natural frequency of the support and structure system may be achieved by providing for engaging and disengaging of the structure and some supporting members in response to motion of the supported structure.

Wu, Ting-shu (Downers Grove, IL); Seidensticker, Ralph W. (Wheaton, IL)

1990-01-01T23:59:59.000Z

279

Undulations from amplified low frequency surface waves  

SciTech Connect (OSTI)

We study the linear scattering of gravity waves in longitudinal inhomogeneous stationary flows. When the flow becomes supercritical, it is known that counterflow propagating shallow waves are blocked and converted into deep waves. Here we show that in the zero-frequency limit, the reflected waves are amplified in such a way that the free surface develops an undulation, i.e., a zero-frequency wave of large amplitude with nodes located at specific places. This amplification involves negative energy waves and implies that flat surfaces are unstable against incoming perturbations of arbitrary small amplitude. The relation between this instability and black hole radiation (the Hawking effect) is established.

Coutant, Antonin, E-mail: antonin.coutant@aei.mpg.de [Max Planck Institute for Gravitational Physics, Albert Einstein Institute, Am Muhlenberg 1, 14476 Golm (Germany)] [Max Planck Institute for Gravitational Physics, Albert Einstein Institute, Am Muhlenberg 1, 14476 Golm (Germany); Parentani, Renaud, E-mail: renaud.parentani@th.u-psud.fr [Laboratoire de Physique Théorique, CNRS UMR 8627, Bâtiment 210, Université Paris-Sud 11, 91405 Orsay Cedex (France)] [Laboratoire de Physique Théorique, CNRS UMR 8627, Bâtiment 210, Université Paris-Sud 11, 91405 Orsay Cedex (France)

2014-04-15T23:59:59.000Z

280

Two-frequency excitation of hydrogen atoms  

Science Journals Connector (OSTI)

When a hydrogen atom in a state with principal quantum number ni is irradiated simultaneously with light of frequency ?L, nearly that required to produce a transition to a higher state with principal quantum number nf and with microwave radiation of frequency ?, the transition is very probable when the resonance condition ?L+k?=Ef-Ei is satisfied, the emission or absorption of the net number k of microwave photons just compensating for the detuning of the light from the resonance. This process is analyzed with the use of a forward scattering method and the results are used to discuss the experiments of Bayfield et al. on the excitation of hydrogen.

P. Stehle

1982-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

The development of a speaker identification research facility  

E-Print Network [OSTI]

related research today is speaker identification Ll, 4]. Speaker identification is the process of identifying an individual by using only information derived from the person's voice. If speaker identification could be practically implemented, it would...THE DL'VELOPFU:NT Ol A SPEAKER IDENTIFICATION RESEARCH FACILITY A Thesis by DALE PETER RUSPINO Submitted to the Craduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August...

Ruspino, Dale Peter

1974-01-01T23:59:59.000Z

282

Frequency locking in an injection-locked frequency divider Michele V. Bartuccelli  

E-Print Network [OSTI]

experimentally, and the devil's staircase structure of the lockings is measured: when the ratio of the frequency of the driving frequency. We provide explicit formulae for the width of the plateaux appearing in the devil's staircase structure of the lockings, and in particular show that the largest plateaux correspond to even

Gentile, Guido

283

Frequency locking in the injection-locked frequency divider Michele V. Bartuccelli  

E-Print Network [OSTI]

- tally, and the devil's staircase structure of the lockings is measured: when the ratio of the frequency of the driving frequency. We provide explicit formulae for the width of the plateaux appearing in the devil's staircase structure of the lockings, and in particular show that the largest plateaux correspond to even

Roma "La Sapienza", Università di

284

Biografo: An Integrated Tool for Forensic Writer Identification  

E-Print Network [OSTI]

Biografo: An Integrated Tool for Forensic Writer Identification Javier Galbally, Santiago Gonzalez of a practical integrated tool for writer identification in forensic scenarios is presented. The tool has been designed to help forensic examiners along the complete identification process: from the data acquisition

Autonoma de Madrid, Universidad

285

Identifications and Monitoring of Power System Dynamics Based on the PMUs and Wavelet Technique  

E-Print Network [OSTI]

Abstract—Low frequency power oscillations may be triggered by many events in the system. Most oscillations are damped by the system, but undamped oscillations can lead to system collapse. Oscillations develop as a result of rotor acceleration/deceleration following a change in active power transfer from a generator. Like the operations limits, the monitoring of power system oscillating modes is a relevant aspect of power system operation and control. Unprevented low-frequency power swings can be cause of cascading outages that can rapidly extend effect on wide region. On this regard, a Wide Area Monitoring, Protection and Control Systems (WAMPCS) help in detecting such phenomena and assess power system dynamics security. The monitoring of power system electromechanical oscillations is very important in the frame of modern power system management and control. In first part, this paper compares the different technique for identification of power system oscillations. Second part analyzes possible identification some power system dynamics behaviors Using Wide Area Monitoring Systems (WAMS) based on Phasor Measurement Units (PMUs) and wavelet technique. Keywords—Power system oscillations, Modal analysis, Prony, Wavelet, PMU, Wide Area Monitoring System.

Samir Avdakovic; Amir Nuhanovic

2010-01-01T23:59:59.000Z

286

Author identification in bengali literary works  

Science Journals Connector (OSTI)

In this paper, we study the problem of authorship identification in Bengali literary works. We considered three authors namely Rabindranath Tagore, Bankim Chandra Chattopadhyay and Sukanta Bhattacharyay. It was observed that simple unigram and bi-gram ... Keywords: authorship attribution, bengali literary works, bi-gram, stylometry, unigram

Suprabhat Das; Pabitra Mitra

2011-06-01T23:59:59.000Z

287

Runtime Identification of Microprocessor Energy Saving Opportunities  

E-Print Network [OSTI]

Runtime Identification of Microprocessor Energy Saving Opportunities W. L. Bircher, M. Valluri, J power consumption and low energy efficiency have become significant impediments to future performance: linear regression models for power consumption and a detailed study of energy efficiency in a modern out

John, Lizy Kurian

288

Tier identification (TID) for tiered memory characteristics  

DOE Patents [OSTI]

A tier identification (TID) is to indicate a characteristic of a memory region associated with a virtual address in a tiered memory system. A thread may be serviced according to a first path based on the TID indicating a first characteristic. The thread may be serviced according to a second path based on the TID indicating a second characteristic.

Chang, Jichuan; Lim, Kevin T; Ranganathan, Parthasarathy

2014-03-25T23:59:59.000Z

289

Adjoint Lattice Boltzmann Equation for Parameter Identification  

E-Print Network [OSTI]

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

Boyer, Edmond

290

Thrips on Onions: Identification and Management  

E-Print Network [OSTI]

L-5397 7-01 Thrips on Onions Identification and Management A.N. Sparks, Jr. and T.-X. Liu Extension Entomologist and Research Entomologist The Texas A&M University System T hrips are the major arthropod pests of onions throughout Texas. They can...

Liu, Tong-Xian; Sparks Jr., Alton N.

2001-08-10T23:59:59.000Z

291

System Identification: Time Varying and Nonlinear Methods  

E-Print Network [OSTI]

that the choice of the generalized time varying ARX model (GTV-ARX) can be set to realize a time varying dead beat observer. Methods to use the developed algorithm(s) in this research are then considered for application to the identification of system models...

Majji, Manoranjan

2010-07-14T23:59:59.000Z

292

Identification in Posthumanist Rhetoric: Trauma and Empathy  

E-Print Network [OSTI]

of the rhetorical strategies used to build them have yet to be worked out. Identification, a key aim of rhetoric in the theory of Kenneth Burke and others, can persuade an audience to value others. However, it can also obscure the realities of who does and does...

Larsen, Amy Marie 1984-

2012-11-21T23:59:59.000Z

293

groundwater nitrogen source identification and remediation  

E-Print Network [OSTI]

producer profits. This will, in turn, benefit water bodies in the area that receive stream baseflow fromgroundwater nitrogen source identification and remediation The Seymour Aquifer is a shallow aquifer water withdraws are used for irrigation while the cities of Vernon, Burk- burnett and Electra and many

294

Studies of positron identification with the  

E-Print Network [OSTI]

and PAMELA has been acquiring data for approximately four years. The detector was designed and optimised production in hadronic cascades within the context of positron identification. The number of 0 s produced Collaboration in 2009 were applied to simulations in the energy range 20 - 100 GeV. Results of this analysis

Haviland, David

295

Particle identification at an asymmetric B Factory  

SciTech Connect (OSTI)

Particle identification systems are an important component of any detector at a high-luminosity, asymmetric B Factory. In particular, excellent hadron identification is required to probe CP violation in B{sup 0} decays to CP eigenstates. The particle identification systems discussed below also provide help in separating leptons from hadrons at low momenta. We begin this chapter with a discussion of the physics motivation for providing particle identification, the inherent limitations due to interactions and decays in flight, and the requirements for hermiticity and angular coverage. A special feature of an asymmetric B Factory is the resulting asymmetry in the momentum distribution as a function of polar angle; this will also be quantified and discussed. In the next section the three primary candidates, time-of-flight (TOF), energy loss (dE/dx), and Cerenkov counters, both ring-imaging and threshold, will be briefly described and evaluated. Following this, one of the candidates, a long-drift Cerenkov ring-imaging device, is described in detail to provide a reference design. Design considerations for a fast RICH are then described. A detailed discussion of aerogel threshold counter designs and associated R D conclude the chapter. 56 refs., 64 figs., 13 tabs.

Coyle, P.; Eigen, G.; Hitlin, D.; Oddone, P.; Ratcliff, B.; Roe, N.; Va'vra, J.; Ypsilantis, T.

1991-09-01T23:59:59.000Z

296

Collaboration-Type Identification in Educational Datasets  

E-Print Network [OSTI]

Collaboration-Type Identification in Educational Datasets ANDREW E. WATERS Department of Electrical Engineering Rice University richb@sparfa.com Identifying collaboration between learners in a course is an important challenge in education for two reasons: First, depending on the courses' rules, collaboration can

297

Science with the Frequency Agile Solar Radiotelescope  

E-Print Network [OSTI]

of Technology #12;EGU Meeting 2004 April 29 NJIT Center for Solar Terrestrial Research 2 / 30 #12;EGU MeetingScience with the Frequency Agile Solar Radiotelescope Dale E. Gary New Jersey Institute 2004 April 29 NJIT Center for Solar Terrestrial Research 3 / 30 FASR Instrument (Antennas) Three arrays

298

Oscillator Architectures and Enhanced Frequency Synthesizer  

E-Print Network [OSTI]

A voltage controlled oscillator (VCO), that generates a periodic signal whose frequency is tuned by a voltage, is a key building block in any integrated circuit systems. A sine wave oscillator can be used for a built-in self testing where high...

Park, Sang Wook

2009-11-16T23:59:59.000Z

299

High-Frequency Transient Eddies and Blocking  

Science Journals Connector (OSTI)

In this paper we investigate the role of high-frequency transient eddies in the maintenance of the blocking high which occurred over Europe on 16-25 February 1979. Time-filtering is used to decompose the atmospheric large-scale flow into ...

Eero Holopainen; Carl Fortelius

1987-06-01T23:59:59.000Z

300

High-Frequency Conductivity of Degenerate Semiconductors  

Science Journals Connector (OSTI)

The problem of high-frequency conductivity of a degenerate semiconductor is investigated by a kinetic description. The finite duration of encounters is taken into account in a self-consistent fashion which properly includes collective effects. This treatment is an extension for quantum plasmas of the Dawson-Oberman method given for classical plasmas.

Amiram Ron and Narkis Tzoar

1963-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Fiber type, meal frequency and colonic cytokinetics  

E-Print Network [OSTI]

The effects of dietary fiber type (cellulose, pectin or oat bran) and meal frequency (gorge or nibble) on colonic short chain fatty acids (SCFAs), in vivo colonic pH and epithelial cell proliferation were examined in male Sprague-Dawley rats...

Zhang, Jianhu

1993-01-01T23:59:59.000Z

302

10 CFR Part 1017 - Identification and Protection of Unclassified Controlled  

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

0 CFR Part 1017 - Identification and Protection of Unclassified 0 CFR Part 1017 - Identification and Protection of Unclassified Controlled Nuclear Information 10 CFR Part 1017 - Identification and Protection of Unclassified Controlled Nuclear Information 10 CFR Part 1017, Identification and Protection of Unclassified Controlled Nuclear Information - Establishes the Government-wide policies and procedures for implementing the requirements of section 148 of the Atomic Energy Act of 1954 concerning identifying and protecting certain unclassified but sensitive Government information that concerns atomic energy defense programs. 10 CFR Part 1017, Identification and Protection of Unclassified Controlled Nuclear Information More Documents & Publications Summary, UCNI Document Markings - November 2011 Briefing, For Persons With Access to UCNI - April 2012

303

Laser Frequency Stabilization with Optical Cavities Anya M. Davis  

E-Print Network [OSTI]

Laser Frequency Stabilization with Optical Cavities Anya M. Davis Walla Walla University University Effective laser cooling requires the laser's frequency to be precise, with a frequency drift of no more than lasers for correcting frequency drift. In the University of Washington Quantum Computing with Trapped

Blinov, Boris

304

Radio frequency ion source operated with field effect transistor based radio frequency system  

SciTech Connect (OSTI)

Characteristics of radio frequency (RF) plasma production are investigated using a field effect transistor inverter power supply as an RF wave source. With the frequency of around 0.3 MHz, an electron density over 10{sup 18} m{sup -3} is produced in argon plasma. Although lower densities are obtained in hydrogen plasma, it drastically increased up to 5x10{sup 18} m{sup -3} with an axial magnetic field of around 100 G applied in the driver region. Effects of the magnetic field and gas pressure are investigated in the RF produced plasma with the frequency of several hundred kilohertz.

Ando, A.; Komuro, A.; Matsuno, T. [Department of Electrical Engineering, Tohoku University, Sendai 980-8759 (Japan); Tsumori, K.; Takeiri, Y. [National Institute for Fusion Science, Toki 509-5292 (Japan)

2010-02-15T23:59:59.000Z

305

Increased Cross-Gender Identification Independent of Gender Role Behavior in Girls with Congenital Adrenal Hyperplasia: Results from a Standardized Assessment of 4- to 11-Year-Old Children  

E-Print Network [OSTI]

frequency of behavioral features of cross-gender identification as conceptualized in Part A of the diagnostic criteria for gender identity disorder (GID) in the DSM-IV-TR. Next, because existing measures may have conflated gender role behavior with gender...

Pasterski, Vickie; Zucker, Kenneth J.; Hindmarsh, Peter C.; Hughes, Ieuan A.; Acerini, Carlo; Spencer, Debra; Neufeld, Sharon; Hines, Melissa

2014-01-01T23:59:59.000Z

306

The cellular basis for parallel neural transmission of a high-frequency stimulus and its low-frequency envelope  

Science Journals Connector (OSTI)

...a sinusoidal electric organ discharge (EOD) that produces an electric field around...individual A. leptorhynchus maintain a stable EOD frequency (13), the species has a frequency...1,000 Hz. Two fish with widely spaced EOD frequencies will generate a high-frequency...

Jason W. Middleton; André Longtin; Jan Benda; Leonard Maler

2006-01-01T23:59:59.000Z

307

Micro-scale piezoelectric vibration energy harvesting: from fixed-frequency to adaptable-frequency devices  

E-Print Network [OSTI]

Chen, Paul K Wright, and James Evans. Resonance frequency21] Christine C Ho, James W Evans, and Paul K Wright. Direct22] Christine C Ho, James W Evans, and Paul K Wright. Direct

Miller, Lindsay Margaret

2012-01-01T23:59:59.000Z

308

Do High-Frequency Eddies Contribute to Low-Frequency Teleconnection Tendencies?  

Science Journals Connector (OSTI)

An isentropic potential vorticity (PV) budget analysis is employed to examine the role of synoptic transients, advection, and nonconservative processes as forcings for the evolution of the low-frequency PV anomalies locally and those associated ...

Panos J. Athanasiadis; Maarten H. P. Ambaum

2010-02-01T23:59:59.000Z

309

Laser frequency combs for astronomical observations  

E-Print Network [OSTI]

A direct measurement of the universe's expansion history could be made by observing in real time the evolution of the cosmological redshift of distant objects. However, this would require measurements of Doppler velocity drifts of about 1 centimeter per second per year, and astronomical spectrographs have not yet been calibrated to this tolerance. We demonstrate the first use of a laser frequency comb for wavelength calibration of an astronomical telescope. Even with a simple analysis, absolute calibration is achieved with an equivalent Doppler precision of approximately 9 meters per second at about 1.5 micrometers - beyond state-of-the-art accuracy. We show that tracking complex, time-varying systematic effects in the spectrograph and detector system is a particular advantage of laser frequency comb calibration. This technique promises an effective means for modeling and removal of such systematic effects to the accuracy required by future experiments to see direct evidence of the universe's putative acceleration.

Tilo Steinmetz; Tobias Wilken; Constanza Araujo-Hauck; Ronald Holzwarth; Theodor W. Hänsch; Luca Pasquini; Antonio Manescau; Sandro D'Odorico; Michael T. Murphy; Thomas Kentischer; Wolfgang Schmidt; Thomas Udem

2008-09-09T23:59:59.000Z

310

Frequency-dependent conductivity of electron glasses  

Science Journals Connector (OSTI)

Results of dc and frequency-dependent conductivity in the quantum limit—i.e., ??>kBT—for a broad range of dopant concentrations in nominally uncompensated, crystalline phosphorous-doped silicon and amorphous niobium-silicon alloys are reported. These materials fall under the general category of disordered insulating systems, which are referred to as electron glasses. Using microwave resonant cavities and quasioptical millimeter-wave spectroscopy we are able to study the frequency-dependent response on the insulating side of the metal-insulator transition. We identify a quantum critical regime, a Fermi glass regime, and a Coulomb glass regime. Our phenomenological results lead to a phase diagram description, or taxonomy, of the electrodynamic response of electron glass systems.

E. Helgren; N. P. Armitage; G. Grüner

2004-01-13T23:59:59.000Z

311

Radio frequency (RF) heated supersonic flow laboratory  

SciTech Connect (OSTI)

A unique supersonic flow apparatus which employs an inductively-coupled, radio frequency (RF) torch to supply high enthalpy source gas to the nozzle inlet is described. The main features of this system are the plasma tube, a cooled nozzle assembly, and a combustion/expansion chamber with a heat exchanger. A description of these components with current test data is presented. In addition, a discussion of anticipated experiments utilizing this system is included.

Wantuck, P.; Watanabe, H.

1990-01-01T23:59:59.000Z

312

Hawking spectrum and high frequency dispersion  

Science Journals Connector (OSTI)

We study the spectrum of created particles in two-dimensional black hole geometries for a linear, Hermitian scalar field satisfying a Lorentz noninvariant field equation with higher spatial derivative terms that are suppressed by powers of a fundamental momentum scale k0. The preferred frame is the "free-fall frame" of the black hole. This model is a variation of Unruh's sonic black hole analogy. We find that there are two qualitatively different types of particle production in this model: a thermal Hawking flux generated by "mode conversion" at the black hole horizon, and a nonthermal spectrum generated via scattering off the background into negative free-fall frequency modes. This second process has nothing to do with black holes and does not occur for the ordinary wave equation because such modes do not propagate outside the horizon with positive Killing frequency. The horizon component of the radiation is astonishingly close to a perfect thermal spectrum: for the smoothest metric studied, with Hawking temperature TH?0.0008k0, agreement is of order (THk0)3 at frequency ?=TH, and agreement to order THk0 persists out to ?TH?45 where the thermal number flux is ?10-20. The flux from scattering dominates at large ? and becomes many orders of magnitude larger than the horizon component for metrics with a "kink," i.e., a region of high curvature localized on a static world line outside the horizon. This nonthermal flux amounts to roughly 10% of the total luminosity for the kinkier metrics considered. The flux exhibits oscillations as a function of frequency which can be explained by interference between the various contributions to the flux.

Steven Corley and Ted Jacobson

1996-07-15T23:59:59.000Z

313

High?frequency cutoff periodic dielectric waveguides  

Science Journals Connector (OSTI)

We report high?frequency cutoff in periodic dielectric waveguides. The guides consisted of 1?? photoresist film with a surface corrugation of up to 500 Å overlaid on fused silica substrates. At a wavelength of 1.064 ? we obtained transition between complete cutoff and propagation by variation in the periodicity of the guide of ± 30 Å. For gratings having 500?Å corrugation unobstructed propagation at 1.32 ? occurred with complete stopping of 1.064?? light.

F.W. Dabby; M.A. Saifi; A. Kestenbaum

1973-01-01T23:59:59.000Z

314

Information systems in supply chain management: a comparative case study of three organisations  

Science Journals Connector (OSTI)

Supply Chain Management (SCM) is recognised as a core competitive strategy for businesses in almost every industry. A strong supply chain provides products and services to consumers faster, cheaper, and better. The paper discusses SCM and information ... Keywords: 3PL, Amazon, RFID, SCM, UPS, United Parcel Services, Wal-Mart, barcodes, cycle time reduction, data warehousing, e-commerce, electronic commerce, electronic data interchange, information flow, information systems applications, information technology, internet, inventory reduction, price reduction, radio frequency identification, satellite systems, supply chain management, third-party logistics, web-based EDI

Girish H. Subramanian; Abdullah C. Iyigungor

2006-02-01T23:59:59.000Z

315

8 - Continuous temperature monitoring along the chilled food supply chain  

Science Journals Connector (OSTI)

Abstract: This chapter addresses the need for continuous temperature monitoring along the entire food supply chain to ensure food quality and safety. In the first part, the needs and expectations as well as barriers of supply chain actors regarding novel technologies are discussed. In the second part, novel technologies for the continuous control of temperature conditions in chilled food chains are presented. These include temperature monitoring systems based on radio frequency identification (RFID) and smart labels, such as time temperature indicators (TTIs). Finally, solutions are presented which show how temperature monitoring systems can be linked with product characteristics to improve food quality and safety.

M. Eden; V. Raab; J. Kreyenschmidt; T. Hafliðason; G. Olafsdóttir; S.G. Bogason

2011-01-01T23:59:59.000Z

316

Identification of demand in differentiated products markets  

E-Print Network [OSTI]

frequency, as well as stock-keeping unit detail for each ofthe top-selling RTEC stock-keeping units (SKUs) 21 for threeseries is the retail A stock-keeping unit (SKU) is the most

Megerdichian, Aren

2010-01-01T23:59:59.000Z

317

PINS Testing and Modification for Explosive Identification  

SciTech Connect (OSTI)

The INL's Portable Isotopic Neutron Spectroscopy System (PINS)1 non-intrusively identifies the chemical fill of munitions and sealed containers. PINS is used routinely by the U.S. Army, the Defense Threat Reduction Agency, and foreign military units to determine the contents of munitions and other containers suspected to contain explosives, smoke-generating chemicals, and chemical warfare agents such as mustard and nerve gas. The objects assayed with PINS range from softball-sized M139 chemical bomblets to 200 gallon DOT 500X ton containers. INL had previously examined2 the feasibility of using a similar system for the identification of explosives, and based on this proof-of-principle test, the development of a dedicated system for the identification of explosives in an improvised nuclear device appears entirely feasible. INL has been tasked by NNSA NA-42 Render Safe Research and Development with the development of such a system.

E.H. Seabury; A.J. Caffrey

2011-09-01T23:59:59.000Z

318

Cascade Training Technique for Particle Identification  

E-Print Network [OSTI]

The cascade training technique which was developed during our work on the MiniBooNE particle identification has been found to be a very efficient way to improve the selection performance, especially when very low background contamination levels are desired. The detailed description of this technique is presented here based on the MiniBooNE detector Monte Carlo simulations, using both artifical neural networks and boosted decision trees as examples.

Yong Liu; Ion Stancu

2006-11-27T23:59:59.000Z

319

Beat-Frequency Models of Kilohertz QPOs  

E-Print Network [OSTI]

Kilohertz QPO sources are reasonably well-characterized observationally, but many questions remain about the theoretical framework for these sources and the consequent implications of the observations for disk physics, strong gravity, and dense matter. We contrast the predictions and implications of the most extensively studied class of kilohertz QPO models, the beat-frequency models, with those of alternative classes of models. We also discuss the expected impact of new observations of these sources with satellites such as Chandra, XMM, and Constellation-X.

M. Coleman Miller

2000-07-19T23:59:59.000Z

320

Nonlinear optical protection against frequency agile lasers  

SciTech Connect (OSTI)

An eye-protection or equipment-filter device for protection from laser energy is disclosed. The device may be in the form of a telescope, binoculars, goggles, constructed as part of equipment such as image intensifiers or range designators. Optical elements focus the waist of the beam within a nonlinear frequency-doubling crystal or nonlinear optical element or fiber. The nonlinear elements produce a harmonic outside the visible spectrum in the case of crystals, or absorb the laser energy in the case of nonlinear fibers. Embodiments include protectors for the human eye as well as filters for sensitive machinery such as TV cameras, FLIR systems or other imaging equipment.

McDowell, V.P.

1988-08-04T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Efficiency optimization for atomic frequency comb storage  

SciTech Connect (OSTI)

We study the efficiency of the atomic frequency comb storage protocol. We show that for a given optical depth, the preparation procedure can be optimize to significantly improve the retrieval. Our prediction is well supported by the experimental implementation of the protocol in a Tm{sup 3+}:YAG crystal. We observe a net gain in efficiency from 10 to 17% by applying the optimized preparation procedure. In the perspective of high bandwidth storage, we investigate the protocol under different magnetic fields. We analyze the effect of the Zeeman and superhyperfine interaction.

Bonarota, M.; Ruggiero, J.; Le Goueet, J.-L.; Chaneliere, T. [Laboratoire Aime Cotton, CNRS-UPR 3321, Univ. Paris-Sud, Bat. 505, F-91405 Orsay Cedex (France)

2010-03-15T23:59:59.000Z

322

Self isolating high frequency saturable reactor  

DOE Patents [OSTI]

The present invention discloses a saturable reactor and a method for decoupling the interwinding capacitance from the frequency limitations of the reactor so that the equivalent electrical circuit of the saturable reactor comprises a variable inductor. The saturable reactor comprises a plurality of physically symmetrical magnetic cores with closed loop magnetic paths and a novel method of wiring a control winding and a RF winding. The present invention additionally discloses a matching network and method for matching the impedances of a RF generator to a load. The matching network comprises a matching transformer and a saturable reactor.

Moore, James A. (Powell, TN)

1998-06-23T23:59:59.000Z

323

Stable Isotope, Site-Specific Mass Tagging For Protein Identification  

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

Stable Isotope, Site-Specific Mass Tagging For Protein Stable Isotope, Site-Specific Mass Tagging For Protein Identification Stable Isotope, Site-Specific Mass Tagging For Protein Identification Proteolytic peptide mass mapping as measured by mass spectrometry provides an important method for the identification of proteins, which are usually identified by matching the measured and calculated m/z values of the proteolytic peptides. Available for thumbnail of Feynman Center (505) 665-9090 Email Stable Isotope, Site-Specific Mass Tagging For Protein Identification Proteolytic peptide mass mapping as measured by mass spectrometry provides an important method for the identification of proteins, which are usually identified by matching the measured and calculated m/z values of the proteolytic peptides. A unique identification is, however, heavily

324

Notes 15. Identification of parameters in mechanical systems  

E-Print Network [OSTI]

Notes 15. Identification of bearing force coefficients. ? Dr. Luis San Andr?s (2008) 1 Handout # 15 (MEEN 617) Application example Experimental identification of bearing force coefficients Consider a test bearing or seal element as a point mass... for your self-study and further learning. References Diaz, S., and L. San Andr?s, 1999, "A Method for Identification of Bearing Force Coefficients and its Application to a Squeeze Film Damper with a Bubbly Lubricant,? STLE Tribology Transactions...

San Andres, Luis

2008-01-01T23:59:59.000Z

325

Frequency dependence of microparticle charge in a radio frequency discharge with Margenau electron velocity distribution  

SciTech Connect (OSTI)

rf discharges are widely used in complex plasma experiments. In this paper, we theoretically investigate the dependence of the particle floating potential on the discharge frequency, assuming the model Margenau expression for the electron velocity distribution function. In doing so we use the orbital motion limited cross section to calculate the electron flux to the particle and collision enhanced collection approximation for the ion flux to the particle. The floating potential is then obtained from the flux balance condition. It is shown that for typical plasma conditions in laboratory rf discharges, normalized floating potential grows with increase of the discharge frequency in collisionless regime and decreases in weakly collisional regime. However, variations in the floating potential are usually small when plasma parameters do not depend on the rf frequency.

Du, Cheng-Ran; Khrapak, Sergey A.; Antonova, Tetyana; Steffes, Bernd; Thomas, Hubertus M.; Morfill, Gregor E. [Max Plank Institute for Extraterrestrial Physics, Garching 85741 (Germany)

2011-01-15T23:59:59.000Z

326

Operation of the CAPRICE electron cyclotron resonance ion source applying frequency tuning and double frequency heating  

SciTech Connect (OSTI)

The properties of the electromagnetic waves heating the electrons of the ECR ion sources (ECRIS) plasma affect the features of the extracted ion beams such as the emittance, the shape, and the current, in particular for higher charge states. The electron heating methods such as the frequency tuning effect and the double frequency heating are widely used for enhancing the performances of ECRIS or even for the routine operation during the beam production. In order to better investigate these effects the CAPRICE ECRIS has been operated using these techniques. The ion beam properties for highly charged ions have been measured with beam diagnostic tools. The reason of the observed variations of this performance can be related to the different electromagnetic field patterns, which are changing inside the plasma chamber when the frequency is varying.

Maimone, F. [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt (Germany); Universita degli Studi di Catania, D.M.F.C.I, Viale A. Doria 6, 95125 Catania (Italy); Tinschert, K.; Lang, R.; Maeder, J.; Rossbach, J.; Spaedtke, P. [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt (Germany); Celona, L. [INFN-LNS, Via S. Sofia 62, 95123 Catania (Italy)

2012-02-15T23:59:59.000Z

327

Theoretical Analysis of the Frequency Allocation of the Hinge...  

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

and at 23.8 GHz, in the high-frequency side. More recently, other investigators (Cady-Pereira et al. 2002) have raised questions on the frequency allocation of the second hinge...

328

Frequency stabilization for a 486nm dye-ring laser  

E-Print Network [OSTI]

For my thesis, I worked towards using two reference cavities to provide frequency stabilization to a 486nm dye-ring laser. After a doubling cavity doubles the frequency to 243nm, the laser beam is used to excite ground ...

Sievers, Charles A. (Charles Anders), 1979-

2004-01-01T23:59:59.000Z

329

Automatic calibration of modulated fractional-N frequency synthesizers  

E-Print Network [OSTI]

The focus of this research has been the development of a low power, radio frequency transmitter architecture. Specifically, a technique for in service automatic calibration of a modulated phase locked loop (PLL) frequency ...

McMahill, Dan

2001-01-01T23:59:59.000Z

330

Energy storage for frequency regulation on the electric grid  

E-Print Network [OSTI]

Ancillary services such as frequency regulation are required for reliable operation of the electric grid. Currently, the same traditional thermal generators that supply bulk power also perform nearly all frequency regulation. ...

Leitermann, Olivia

2012-01-01T23:59:59.000Z

331

Burst Radio-Frequency Excited Pulsed Hollow-Cathode Lamp  

Science Journals Connector (OSTI)

Transient emission characteristics of a hollow-cathode lamp driven by a pulsed current in combination with a radio-frequency burst signal are described. The radio-frequency field...

Araki, Tsutomu; Walters, John P; Minami, Shigeo

1980-01-01T23:59:59.000Z

332

Frequency content of current pulses in slapper detonator bridges  

SciTech Connect (OSTI)

DFT amplitudes are obtained for digital current pulse files. The frequency content of slapper detonator bridge current pulses is obtained. The frequencies are confined well within the passband of the CVR used to sample them.

Carpenter, K H

2006-12-18T23:59:59.000Z

333

Frequency comb swept lasers for optical coherence tomography  

E-Print Network [OSTI]

We demonstrate a frequency comb (FC) swept laser and a frequency comb Fourier domain mode locked (FC-FDML) laser for applications in optical coherence tomography (OCT). The fiber-based FC swept lasers operate at a sweep ...

Tsai, Tsung-Han

334

Near infrared frequency dependence of high-order sideband generation  

SciTech Connect (OSTI)

The near infrared frequency dependence of high order sideband generation in InGaAs quantum wells is discussed. The NIR frequency dependence of the sidebands indicates that the HSG phenomenon is excitonic in nature.

Zaks, Benjamin; Banks, Hunter; Sherwin, Mark [Physics Department and the Institute for Terahertz Science and Technology, University of California at Santa Barbara, Santa Barbara, CA 93106 (United States); Liu, Ren-Bao [Physics Department and Centre of Optical Sciences, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong (China)

2013-12-04T23:59:59.000Z

335

Trirotron: triode rotating beam radio frequency amplifier  

DOE Patents [OSTI]

High efficiency amplification of radio frequencies to very high power levels including: establishing a cylindrical cloud of electrons; establishing an electrical field surrounding and coaxial with the electron cloud to bias the electrons to remain in the cloud; establishing a rotating electrical field that surrounds and is coaxial with the steady field, the circular path of the rotating field being one wavelength long, whereby the peak of one phase of the rotating field is used to accelerate electrons in a beam through the bias field in synchronism with the peak of the rotating field so that there is a beam of electrons continuously extracted from the cloud and rotating with the peak; establishing a steady electrical field that surrounds and is coaxial with the rotating field for high-energy radial acceleration of the rotating beam of electrons; and resonating the rotating beam of electrons within a space surrounding the second field, the space being selected to have a phase velocity equal to that of the rotating field to thereby produce a high-power output at the frequency of the rotating field.

Lebacqz, Jean V. (Stanford, CA)

1980-01-01T23:59:59.000Z

336

Chapter 18: Variable Frequency Drive Evaluation Protocol  

SciTech Connect (OSTI)

An adjustable-speed drive (ASD) includes all devices that vary the speed of a rotating load, including those that vary the motor speed and linkage devices that allow constant motor speed while varying the load speed. The Variable Frequency Drive Evaluation Protocol presented here addresses evaluation issues for variable-frequency drives (VFDs) installed on commercial and industrial motor-driven centrifugal fans and pumps for which torque varies with speed. Constant torque load applications, such as those for positive displacement pumps, are not covered by this protocol. Other ASD devices, such as magnetic drive, eddy current drives, variable belt sheave drives, or direct current motor variable voltage drives, are also not addressed. The VFD is by far the most common type of ASD hardware. With VFD speed control on a centrifugal fan or pump motor, energy use follows the affinity laws, which state that the motor electricity demand is a cubic relationship to speed under ideal conditions. Therefore, if the motor runs at 75% speed, the motor demand will ideally be reduced to 42% of full load power; however, with other losses it is about 49% of full load power.

Romberger, J.

2014-11-01T23:59:59.000Z

337

Phase I - Resource Procurement and Identification | Open Energy Information  

Open Energy Info (EERE)

- Resource Procurement and Identification - Resource Procurement and Identification Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home GEA Development Phase I: Resource Procurement and Identification GEA Development Phases The Geothermal Energy Association's (GEA) Geothermal Reporting Terms and Definitions are a guideline for geothermal developers to use when submitting geothermal resource development information to GEA for public dissemination in its annual US Geothermal Power Production and Development Update. GEA's Geothermal Reporting Terms and Definitions serve to increase the consistency, accuracy, and reliability of industry information presented in the development updates. Phase I - Resource Procurement and Identification Phase II - Resource Exploration and Confirmation Phase III - Permitting and Initial Development

338

Identification and Characterization of Near-Term Direct Hydrogen...  

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

and Characterization of Near-Term Direct Hydrogen Proton Exchange Membrane Fuel Cell Markets Identification and Characterization of Near-Term Direct Hydrogen Proton Exchange...

339

E-Print Network 3.0 - alternatives identification preconceptual...  

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

(FIRE) Collection: Plasma Physics and Fusion 51 A Framework for an HSI Downselection Tool Phillip M. Cunio Summary: Tool identification Tool scores Tool database Rating weights...

340

Introduction Compound-specific identification, or biomarker analysis,  

E-Print Network [OSTI]

269 Introduction Compound-specific identification, or biomarker analysis, in organic geochemistry cases highlighting subtle yet important details not revealed by bulk analyses alone. For example

Long, Bernard

Note: This page contains sample records for the topic "frequency identification rfid" 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

Modeling and online parameter identification methods for Electrohydraulic Valvetrain Systems  

E-Print Network [OSTI]

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

Gray, James

2009-01-01T23:59:59.000Z

342

Chapter 31 Identification and Listing of Hazardous Waste (Kentucky)  

Broader source: Energy.gov [DOE]

This administrative regulation establishes the general provisions necessary for identification and listing of a hazardous waste. The regulation also establishes the criteria for identifying the...

343

Seismic damage identification for steel structures using distributed fiber optics  

Science Journals Connector (OSTI)

A distributed fiber optic monitoring methodology based on optic time domain reflectometry technology is developed for seismic damage identification of steel structures. Epoxy with a...

Hou, Shuang; Cai, C S; Ou, Jinping

2009-01-01T23:59:59.000Z

344

Identification of high angle structures controlling the geothermal...  

Open Energy Info (EERE)

high angle structures controlling the geothermal system at Rye Patch, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Identification of...

345

New active set identification for general constrained optimization ...  

E-Print Network [OSTI]

Wright [5] used a hybrid geometric-algebraic viewpoint and considered convex ... Oberlin and Wright [13] focused on identification schemes that do not require ...

2014-03-13T23:59:59.000Z

346

Microresonator frequency comb optical clock SCOTT B. PAPP,1,  

E-Print Network [OSTI]

. http://dx.doi.org/10.1364/OPTICA.1.000010 1. INTRODUCTION Optical frequency combs enable extraordinary

347

High-frequency self-aligned graphene transistors with transferred gate stacks  

Science Journals Connector (OSTI)

...2009 ) Radio-frequency electrical...Epitaxial-graphene RF field-effect...2011 ) High-frequency, scaled graphene...of high-frequency measurement...Information (PDF) High-frequency self-aligned...attention for radio-frequency transistor...

Rui Cheng; Jingwei Bai; Lei Liao; Hailong Zhou; Yu Chen; Lixin Liu; Yung-Chen Lin; Shan Jiang; Yu Huang; Xiangfeng Duan

2012-01-01T23:59:59.000Z

348

A Framework for Radio Frequency Spectrum Measurement and Analysis  

E-Print Network [OSTI]

A Framework for Radio Frequency Spectrum Measurement and Analysis V. Rory Petty ITTC-FY2008-TR allocation and the burgeoning problem of spectrum scarcity have prompted an examination of how the radio frequency spectrum is utilized. The radio frequency spectrum is an important national resource that impacts

Kansas, University of

349

SOME UNSOLVED CHALLENGES IN RADIO-FREQUENCY HEATING AND  

E-Print Network [OSTI]

SOME UNSOLVED CHALLENGES IN RADIO-FREQUENCY HEATING AND CURRENT DRIVE N. J. FISCH* Princeton Plasma in the electronic version. I. INTRODUCTION There are many methods by which radio-frequency (rf) waves drive, 2013 doi:10.13182/FST13-682 Several unsolved challenges in radio-frequency heating and current drive

350

Rotating-radio-frequency ion traps T. Hasegawa*  

E-Print Network [OSTI]

rf ion trap, the rotating-radio-frequency rotating-rf trap, in which the motion of a charged particleRotating-radio-frequency ion traps T. Hasegawa* Department of Physics, Keio University, Kanagawa and Technology, Boulder, Colorado 80305, USA Received 9 July 2005; published 20 October 2005 We discuss a radio-frequency

351

Alternative Approaches for Incentivizing the Frequency Responsive Reserve Ancillary Service  

SciTech Connect (OSTI)

Frequency responsive reserve is the autonomous response of generators and demand response to deviations of system frequency, usually as a result of the instantaneous outage of a large supplier. This article discusses the issues that can occur without proper incentives and even disincentives, and proposes alternatives to introduce incentives for resources to provide frequency responsive reserve to ensure an efficient and reliable power system.

Ela, E.; Tuohy, A.; Milligan, M.; Kirby, B.; Brooks, D.

2012-05-01T23:59:59.000Z

352

Low–frequency acoustic waves in nematic elastomers  

Science Journals Connector (OSTI)

...2003.1153 Low-frequency acoustic waves in...elastomers in the low-frequency (hydrodynamic...of shear at low frequencies, leads to anomalous anisotropy of energy transfer and attenuation...anisotropic) elastic response; large deformations...dramatic reduction of storage shear modulus G0...

2003-01-01T23:59:59.000Z

353

A Survey of Computational High Frequency Wave Propagation I  

E-Print Network [OSTI]

)"u All frequency approximations ! "u + #2 c$2 u = 0 Frequency domain Mode equation waveguides ! "1u + #2 c$2 u $ kx1 2 u = 0 paraxial equation ! ux1t + (c /2)"1u = 0 wave equation geometric simplifications approximations ! "u + #2 c$2 u = 0 Frequency domainwave equation ABC, PML ABC, PML integral equation potential

Maryland at College Park, University of

354

Optical frequency standards based on mercury and aluminum ions  

E-Print Network [OSTI]

Optical frequency standards based on mercury and aluminum ions W. M. Itano, J. C. Bergquist, A-16 . Keywords: aluminum, atomic clocks, frequency standards, ion traps, mercury 1. INTRODUCTION Optical frequency standards based on the mercury ion and, more recently, the aluminum ion are under devel- opment

355

Multiple Frequency Electron Cyclotron Heating for the Levitated Dipole Experiment  

E-Print Network [OSTI]

Multiple Frequency Electron Cyclotron Heating for the Levitated Dipole Experiment by Scott B. Mahar on Graduate Students #12;2 #12;Multiple Frequency Electron Cyclotron Heating for the Levitated Dipole frequencies of electron cyclotron resonance heating (ECRH) in the Levitated Dipole Experiment (LDX

356

The Impact of Frequency-Agility on Dynamic Spectrum Sharing  

E-Print Network [OSTI]

The Impact of Frequency-Agility on Dynamic Spectrum Sharing Lili Cao, Lei Yang and Haitao Zheng}@cs.ucsb.edu Abstract-- Designed to adapt spectrum usage on-the-fly, frequency-agile radios can drastically improve complexity. This motivates us to understand when and why having higher degree of frequency-agility helps

Almeroth, Kevin C.

357

Metal slits and liquid crystals at microwave frequencies  

Science Journals Connector (OSTI)

...the possible use of dual frequency materials to allow drive-on as well as drive-off. Unfortunately such dual-frequency materials have reduced...T Nomoto2002Microwave variable delay line using dual-frequency switching-mode liquid...

2006-01-01T23:59:59.000Z

358

Identification of host response signatures of infection.  

SciTech Connect (OSTI)

Biological weapons of mass destruction and emerging infectious diseases represent a serious and growing threat to our national security. Effective response to a bioattack or disease outbreak critically depends upon efficient and reliable distinguishing between infected vs healthy individuals, to enable rational use of scarce, invasive, and/or costly countermeasures (diagnostics, therapies, quarantine). Screening based on direct detection of the causative pathogen can be problematic, because culture- and probe-based assays are confounded by unanticipated pathogens (e.g., deeply diverged, engineered), and readily-accessible specimens (e.g., blood) often contain little or no pathogen, particularly at pre-symptomatic stages of disease. Thus, in addition to the pathogen itself, one would like to detect infection-specific host response signatures in the specimen, preferably ones comprised of nucleic acids (NA), which can be recovered and amplified from tiny specimens (e.g., fingerstick draws). Proof-of-concept studies have not been definitive, however, largely due to use of sub-optimal sample preparation and detection technologies. For purposes of pathogen detection, Sandia has developed novel molecular biology methods that enable selective isolation of NA unique to, or shared between, complex samples, followed by identification and quantitation via Second Generation Sequencing (SGS). The central hypothesis of the current study is that variations on this approach will support efficient identification and verification of NA-based host response signatures of infectious disease. To test this hypothesis, we re-engineered Sandia's sophisticated sample preparation pipelines, and developed new SGS data analysis tools and strategies, in order to pioneer use of SGS for identification of host NA correlating with infection. Proof-of-concept studies were carried out using specimens drawn from pathogen-infected non-human primates (NHP). This work provides a strong foundation for large-scale, highly-efficient efforts to identify and verify infection-specific host NA signatures in human populations.

Branda, Steven S.; Sinha, Anupama; Bent, Zachary

2013-02-01T23:59:59.000Z

359

Obtaining material identification with cosmic ray radiography  

SciTech Connect (OSTI)

The passage of muons through matter is dominated by the Coulomb interaction with electrons and nuclei in the matter. The muon interaction with the electrons leads to continuous energy loss and stopping of the muons. The muon interaction with nuclei leads to angular diffusion. Using both stopped muons and angle diffusion interactions allows us to determine density and identify materials. Here we demonstrate material identification using data taken at Los Alamos with a particle tracker built from a set of sealed drift tubes with commercial electronics and software, the Mini Muon Tracker (MMT).

Morris, C. L.; Borozdin, Konstantin; Bacon, Jeffrey; Chen, Elliott; Lukic, Zarija; Milner, Edward; Miyadera, Haruo; Perry, John [Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Schwellenbach, Dave; Aberle, Derek; Dreesen, Wendi; Green, J. Andrew; McDuff, George G. [National Security Technologies, Los Alamos, NM 87544 (United States); Nagamine, Kanetada [KEK, Tsukuba, Ibaraki, 305-0801 (Japan); RIKEN, Wako, Saitama, 351-0198 (Japan) and UC-Riverside, CA 92521 (United States); Sossong, Michael [Decision Sciences, 12345 First American Way, Suite 130, Poway, CA 92064 (United States); Spore, Candace; Toleman, Nathan [Department of Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131-0001 (United States)

2012-12-15T23:59:59.000Z

360

Localization and identification of corona forms  

Science Journals Connector (OSTI)

In this paper, the detection of a corona effect based on phase-resolved images is studied. An advanced method for localization and identification of defects occurring in high voltage (HV) overhead lines and substation power equipment is presented. Under the laboratory conditions phase-resolved images of discharges, generated at certain spots within the HV transmission line, were registered. Those spots represented defects existing in the real environment and they were sources of additional corona discharges. Results indicated that phase-resolved images of corona interference are well correlated to a special kind of defect occurring within the HV overhead lines, as well as within substation power equipment.

Barbara Florkowska; Pawel Zydron; Marek Florkowski

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Low-frequency waves in the Santa Barbara Channel observed by high-frequency radar  

E-Print Network [OSTI]

, suggesting coupling with the larger-scale circulation of the northern Southern California Bight of the Santa Barbara Basin in the form of a trapped topographic Rossby mode. The spatial mode resembles is consistently large when the frequencies of modes 1 and 2 converge, suggesting that the vortices are a basin

California at Santa Barbara, University of

362

The Gaseous Electronics Conference radio-frequency reference cell: A defined parallel-plate radio-frequency system for experimental  

E-Print Network [OSTI]

The Gaseous Electronics Conference radio-frequency reference cell: A defined parallel-plate radio-frequency publication 3 September1993) A "referencecell" for generatingradio-frequency(rf) glow dischargesin gasesat a frequencyof 13.56MHz is described.The referencecell provides an experimental platform for comparing plasma

Kushner, Mark

363

Dual radio frequency plasma source: Understanding via electrical asymmetry effect  

SciTech Connect (OSTI)

On the basis of the global model, the influences of driving voltage and frequency on electron heating in geometrically symmetrical dual capacitively coupled radio frequency plasma have been investigated. Consistent with the experimental and simulation results, non-monotonic behavior of dc self bias and plasma heating with increasing high frequency is observed. In addition to the local maxima of plasma parameters for the integer values of the ratio between the frequencies ({xi}), ourstudies also predict local maxima for odd integer values of 2{xi} as a consequence of the electrical asymmetry effect produced by dual frequency voltage sources.

Bora, B. [Departamento de Plasma Termonuclear, Comision Chilena de Energia Nuclear (CCHEN), Casilla 188-D, Santiago (Chile); Departamento de Fisica, Pontificia Universidad Catolica de Chile, Casilla 306, Santiago 22 (Chile); Bhuyan, H.; Favre, M.; Wyndham, E. [Departamento de Fisica, Pontificia Universidad Catolica de Chile, Casilla 306, Santiago 22 (Chile); Wong, C. S. [Plasma Technology Research Centre, Physics Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)

2013-04-21T23:59:59.000Z

364

An improved integrally formed radio frequency quadrupole  

DOE Patents [OSTI]

An improved radio frequency quadrupole is provided having an elongate housing with an elongate central axis and top, bottom and two side walls symmetrically disposed about the axis, and vanes formed integrally with the walls, the vanes each having a cross-section at right angles to the central axis which tapers inwardly toward the axis to form electrode tips spaced from each other by predetermined distances. Each of the four walls, and the vanes integral therewith, is a separate structural element having a central lengthwise plane passing through the tip of the vane, the walls having flat mounting surfaces at right angles to and parallel to the control plane, respectively, which are butted together to position the walls and vane tips relative to each other. 4 figs.

Abbott, S.R.

1987-10-05T23:59:59.000Z

365

Compact, flexible, frequency agile parametric wavelength converter  

DOE Patents [OSTI]

This improved Frequency Agile Optical Parametric Oscillator provides near on-axis pumping of a single QPMC with a tilted periodically poled grating to overcome the necessity to find a particular crystal that will permit collinear birefringence in order to obtain a desired tuning range. A tilted grating design and the elongation of the transverse profile of the pump beam in the angle tuning plane of the FA-OPO reduces the rate of change of the overlap between the pumped volume in the crystal and the resonated and non-resonated wave mode volumes as the pump beam angle is changed. A folded mirror set relays the pivot point for beam steering from a beam deflector to the center of the FA-OPO crystal. This reduces the footprint of the device by as much as a factor of two over that obtained when using the refractive telescope design.

Velsko, Stephan P. (Livermore, CA); Yang, Steven T. (Danville, CA)

2002-01-01T23:59:59.000Z

366

Resonant frequency method for bearing ball inspection  

DOE Patents [OSTI]

The present invention provides for an inspection system and method for detecting defects in test objects which includes means for generating expansion inducing energy focused upon the test object at a first location, such expansion being allowed to contract, thereby causing pressure wave within and on the surface of the test object. Such expansion inducing energy may be provided by, for example, a laser beam or ultrasonic energy. At a second location, the amplitudes and phases of the acoustic waves are detected and the resonant frequencies' quality factors are calculated and compared to predetermined quality factor data, such comparison providing information of whether the test object contains a defect. The inspection system and method also includes means for mounting the bearing ball for inspection.

Khuri-Yakub, B. T. (Palo Alto, CA); Hsieh, Chung-Kao (Stanford, CA)

1993-01-01T23:59:59.000Z

367

Resonant frequency method for bearing ball inspection  

DOE Patents [OSTI]

The present invention provides for an inspection system and method for detecting defects in test objects which includes means for generating expansion inducing energy focused upon the test object at a first location, such expansion being allowed to contract, thereby causing pressure wave within and on the surface of the test object. Such expansion inducing energy may be provided by, for example, a laser beam or ultrasonic energy. At a second location, the amplitudes and phases of the acoustic waves are detected and the resonant frequencies' quality factors are calculated and compared to predetermined quality factor data, such comparison providing information of whether the test object contains a defect. The inspection system and method also includes means for mounting the bearing ball for inspection. 5 figures.

Khuri-Yakub, B.T.; Chungkao Hsieh.

1993-11-02T23:59:59.000Z

368

Magneto-photonic phenomena at terahertz frequencies  

E-Print Network [OSTI]

Magneto-terahertz phenomena are the main focus of the thesis. This work started as supporting research for the science of an X-ray laser (SwissFEL). X-ray lasers have recently drawn great attention as an unprecedented tool for scientific research on the ultrafast scale..... To answer this fundamental question, we performed original numerical simulations using a coupled Landau- Lifshitz-Gilbert Maxwell model. ... Those requirements were the motivations for the experiments performed in the second part of the thesis. To shape the terahertz pulses, .... Regarding the field intensities, we followed two approaches. The first deals with field enhancement in nanoslits arrays. We designed a subwavelength structure characterized by simultaneous high field enhancement and high transmission at terahertz frequencies to suit nonlinear sources. The second approach depended on up-scaling the generation from laser-induced plasma by increasing the pump wavelengths. Numerical calculations have also brought to our attention the ...

Shalaby, Mostafa

2014-01-01T23:59:59.000Z

369

Solar coronal observations at high frequencies  

E-Print Network [OSTI]

The Solar Eclipse Coronal Imaging System (SECIS) is a simple and extremely fast, high-resolution imaging instrument designed for studies of the solar corona. Light from the corona (during, for example, a total solar eclipse) is reflected off a heliostat and passes via a Schmidt-Cassegrain telescope and beam splitter to two CCD cameras capable of imaging at 60 frames a second. The cameras are attached via SCSI connections to a purpose-built PC that acts as the data acquisition and storage system. Each optical channel has a different filter allowing observations of the same events in both white light and in the green line (Fe XIV at 5303 A). Wavelet analysis of the stabilized images has revealed high frequency oscillations which may make a significant contribution on the coronal heating process. In this presentation we give an outline of the instrument and its future development.

A. C. Katsiyannis; M. Mathioudakis; K. J. H. Phillips; D. R. Williams; F. P. Keenan

2001-11-22T23:59:59.000Z

370

Electromechanical Mode Shape Estimation Based on Transfer Function Identification Using PMU Measurement  

SciTech Connect (OSTI)

Power system mode shapes are key indication of how dynamic components participate in low-frequency oscillations. Traditionally, mode shapes are calculated from a linearized dynamic model. For large-scale power systems, obtaining accu-rate dynamic models is very difficult. Therefore, measurement-based mode shape estimation methods have certain advantages, especially for the application of real-time small signal stability monitoring. In this paper, a measurement-based mode shape iden-tification method is proposed. The general relationship between transfer function (TF) and mode shape is derived. As an example, a least square (LS) method is implemented to estimate mode shape using an autoregressive exogenous (ARX) model. The per-formance of the proposed method is evaluated by Monte-Carlo studies using simulation data from a 17-machine model. The re-sults indicate the validity of the proposed method in estimating mode shapes with reasonably good accuracy

Zhou, Ning; Huang, Zhenyu; Dosiek, Luke; Trudnowski, Daniel J.; Pierre, John W.

2009-07-30T23:59:59.000Z

371

NEW DIRECTIONS IN RADIOISOTOPE SPECTRUM IDENTIFICATION  

SciTech Connect (OSTI)

Recent studies have found the performance of commercial handheld detectors with automatic RIID software to be less than acceptable. Previously, we have explored approaches rooted in speech processing such as cepstral features and information-theoretic measures. Scientific advances are often made when researchers identify mathematical or physical commonalities between different fields and are able to apply mature techniques or algorithms developed in one field to another field which shares some of the same challenges. The authors of this paper have identified similarities between the unsolved problems faced in gamma-spectroscopy for automated radioisotope identification and the challenges of the much larger body of research in speech processing. Our research has led to a probabilistic framework for describing and solving radioisotope identification problems. Many heuristic approaches to classification in current use, including for radioisotope classification, make implicit probabilistic assumptions which are not clear to the users and, if stated explicitly, might not be considered desirable. Our framework leads to a classification approach with demonstrable improvements using standard feature sets on proof-of-concept simulated and field-collected data.

Salaymeh, S.; Jeffcoat, R.

2010-06-17T23:59:59.000Z

372

Comparison of four procedures for the identification of hybrid systems  

E-Print Network [OSTI]

Comparison of four procedures for the identification of hybrid systems A.Lj. Juloski1 , W.niessen@nyquist.com Abstract. In this paper we compare four recently proposed procedures for the identification of PieceWise AutoRegressive eXogenous (PWARX) and switched ARX models. We consider the clustering-based procedure

373

Adaptive control based on neural network system identification  

Science Journals Connector (OSTI)

In adaptive control and system identification the self tuning regulator has wide range of applications. Neural network and artificial intelligence have big role in this area. This paper presents adaptive neural network control based on self tuning regulator ... Keywords: adaptive control, neural network, neuro control, self tuning regulator, system identification

Hassan E. A. Ibrahim

2012-02-01T23:59:59.000Z

374

A METHODOLOGY FOR IDENTIFICATION OF NARMAX MODELS APPLIED TO DIESEL  

E-Print Network [OSTI]

A METHODOLOGY FOR IDENTIFICATION OF NARMAX MODELS APPLIED TO DIESEL ENGINES 1 Gianluca Zito ,2 Ioan is illustrated by means of an automotive case study, namely a variable geometry turbocharged diesel engine identification procedure is illustrated. In section 3 a diesel engine system, used to test the procedure

Paris-Sud XI, Université de

375

Graphical language for identification of control strategies allowing Demand Response  

E-Print Network [OSTI]

Graphical language for identification of control strategies allowing Demand Response David DA SILVA. This will allow the identification of the electric appliance availability for demand response control strategies to be implemented in terms of demand response for electrical appliances. Introduction An important part

Paris-Sud XI, Université de

376

Copyright 1997 Carnegie Mellon University Gas Identification System using  

E-Print Network [OSTI]

Copyright © 1997 Carnegie Mellon University Gas Identification System using Graded Temperature are observed. Emphasis is on identification, since quantitation of identified mixtures is straightforward by the sensor bulk is decreased. Thus if an SnO2 sensor is ramped through an appropriate temperature range

Siegel, Mel

377

Horse Theft Awareness and Prevention - Identification of Horses  

E-Print Network [OSTI]

of advertising. Permanent Identif_ication of Horses L-5211 7-98 Pete Gibbs, Leman H. Wall and Doug Householder* *Professor and Extension Horse Specialist, Extension Assistant-Animal Science/4-H and Professor and Extension Horse Spe- cialist; The Texas A...

Gibbs, Pete G.; Wall, Leman H.; Householder, Doug

1998-08-12T23:59:59.000Z

378

Newborn Identification: Why and How? Prof. Dr. Daniel Weingaertner  

E-Print Network [OSTI]

Universidade Federal do Paran´a - Brasil January, 23th 2009 D. Weingaertner (UFPR) Newborn Identification: Why and How? January, 23th 2009 1 / 29 #12;Brazil and Europe D. Weingaertner (UFPR) Newborn Identification: Why and How? January, 23th 2009 2 / 29 #12;Paran´a State in Brazil D. Weingaertner (UFPR) Newborn

379

Fast 3D Scanning for Biometric Identification and Verification  

E-Print Network [OSTI]

Fast 3D Scanning for Biometric Identification and Verification June 2011 Authors Anselmo., & Chen, A. (2011). Fast 3D Scanning for Biometric Identification and Verification. (Prepared by RTI..................................................10 Summary and Findings for Integration of Imperceptible Structured Lighting and SIS's 3D Snapshot

McShea, Daniel W.

380

Weed Identification: Using Plant Structures as a Key  

E-Print Network [OSTI]

Paul A. Baumann Professor and Extension W eed Specialist, The T exas A&M University System. B-6079 3-99 U si n g P lan t S t r u ct u r e s a s a Ke y W eed Identification: eed identification is necessary to the success of any...

Baumann, Paul A.

2002-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Optical fuel pin scanner. [Patent application; for reading identifications  

DOE Patents [OSTI]

This patent relates to an optical identification system developed for post-irradiation disassembly and analysis of fuel bundle assemblies. The apparatus is designed to be lowered onto a stationary fuel pin to read identification numbers or letters imprinted on the circumference of the top fuel pin and cap. (DLC)

Kirchner, T.L.; Powers, H.G.

1980-12-09T23:59:59.000Z

382

Developing a SNP panel for forensic identification of individuals  

E-Print Network [OSTI]

Developing a SNP panel for forensic identification of individuals Kenneth K. Kidd a,*, Andrew J) are likely in the near future to have a fundamental role in forensics in both human identification www.elsevier.com/locate/forsciint Forensic Science International 164 (2006) 20­32 * Corresponding

Kidd, Kenneth

383

Forensic identification: the Island Problem and its generalisations  

E-Print Network [OSTI]

Forensic identification: the Island Problem and its generalisations Klaas Slooten and Ronald Meester April 26, 2010 Abstract In forensics it is a classical problem to determine, when a suspect by a likelihood ratio. Keywords: Island problem, Forensic identification, Weight of evidence, Posterior odds

Meester, Ronald

384

E-Print Network 3.0 - automatic identification system Sample...  

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

Automatic2 Fingerprint Identification System (AFIS) in the 1960s. The use... -Finger Penetration Rate and ROC Variability for Automatic Fingerprint Identification Systems", in...

385

E-Print Network 3.0 - assessing radio-isotope identification...  

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

radio-isotope identification Search Powered by Explorit Topic List Advanced Search Sample search results for: assessing radio-isotope identification Page: << < 1 2 3 4 5 > >> 1...

386

Fault Identification in Doubly Fed Induction Generator Using FFT and Neural Networks  

Science Journals Connector (OSTI)

This paper presents a fault identification system for doubly fed induction generator (DFIG). It considers cases of single phase ... with the PP to fault identification in the DFIG.

Marcelo Patrício de Santana…

2012-01-01T23:59:59.000Z

387

Comparison of two audio fingerprinting algorithms for advertisement identification / van Nieuwenhuizen H.A.  

E-Print Network [OSTI]

??Although the identification of humans by fingerprints is a well–known technique in practice, the identification of an audio sample by means of a technique called… (more)

Van Nieuwenhuizen, Heinrich Abrie

2011-01-01T23:59:59.000Z

388

Neural Network Identification For a C5 Parallel Robot  

SciTech Connect (OSTI)

This paper presents the design and analysis of a neural network-based identification of the inverse dynamic model of a C5 parallel robot. The identification structure is designed using the black box form (the dynamic model is completely unknown). This identification uses real data acquired on the C5 parallel robot by applying a nominal control scheme (PD). The desired trajectories of this scheme are based on Fourier series and the coefficients are chosen in a heuristic way. We have used this type of desired trajectories to obtain exciting trajectories for identification procedure. Three identification schemes are tested and compared. The comparison is performed based on the number of parameters used in each architecture and the quality of the generalization error. The used neural network is of MLP type and composed of one hidden layer.

Daachi, M. E.; Chikouche, D. [Universite Ferhat Abbes, Setif (Algeria); Achili, B. [Laboratoire d'Informatique Avancees de Saint Denis (LIASD) 2, rue de la liberte 93526 Saint Denis Cedex (France); Daachi, B. [Laboratoire Images, Signaux et Systmes Intelligents (LISSI) 122, rue Paul Armangot 94400 Vitry/Seine (France)

2008-06-12T23:59:59.000Z

389

EMPLACEMENT GANTRY ITS STANDARDS IDENTIFICATION STUDY  

SciTech Connect (OSTI)

To date, the project has established ITS performance requirements for SSCs based on identification and categorization of event sequences that may result in a radiological release. These performance requirements are defined within the NSDB. Further, SSCs credited with performing safe functions are classified as ITS. In turn, perform confirmation for these SSCs is sought through the use of consensus code and standards. The purpose of this study is to identify applicable codes and standards for the WP Emplacement Gantry ITS SSCs. Further, this study will form the basis for selection and the extent of applicability of each code and standard. This study is based on the design development completed for LA only. Accordingly, identification of ITS SSCs beyond those defined within the NSDB are based on designs that may be subject to further development during detail design. Furthermore, several design alternatives may still be under consideration to satisfy certain safety functions, and that final selection will not be determined until further design development has occurred. Therefore, for completeness, throughout this study alternative designs currently under considered will be discussed. Further, the results of this study will be subject to evaluation as part of a follow-on GAP analysis study. Based on the results of this study the GAP analysis will evaluate each code and standard to ensure each ITS performance requirement is fully satisfied. When a performance requirement is not fully satisfied a ''gap'' is highlighted. Thereafter, the study will identify supplemental requirements to augment the code or standard to meet performance requirements. Further, the GAP analysis will identify non-standard areas of the design that will be subject to a Development Plan. Non-standard components and non-standard design configurations are defined as areas of the design that do not follow standard industry practices or codes and standards. Whereby, performance confirmation cannot be readily sought though use of consensus standards. The ITS codes and standards identified in this document were developed by the Yucca Mountain Project personnel from the Emplacement & Retrieval Project and are intended solely for the use of the Design and Engineering group in its work regarding the Emplacement and Retrieval system, specifically identification of Emplacement and Retrieval equipment codes and standards.

M. Voegele

2005-04-06T23:59:59.000Z

390

Resonant-frequency discharge in a multi-cell radio frequency cavity  

SciTech Connect (OSTI)

We are reporting experimental results on microwave discharge operating at resonant frequency in a multi-cell radio frequency (RF) accelerator cavity. Although the discharge operated at room temperature, the setup was constructed so that it could be used for plasma generation and processing in fully assembled active superconducting radio-frequency (SRF) cryomodule (in situ operation). This discharge offers an efficient mechanism for removal of a variety of contaminants, organic or oxide layers, and residual particulates from the interior surface of RF cavities through the interaction of plasma-generated radicals with the cavity walls. We describe resonant RF breakdown conditions and address the problems related to generation and sustaining the multi-cell cavity plasma, which are breakdown and resonant detuning. We have determined breakdown conditions in the cavity, which was acting as a plasma vessel with distorted cylindrical geometry. We discuss the spectroscopic data taken during plasma removal of contaminants and use them to evaluate plasma parameters, characterize the process, and estimate the volatile contaminant product removal.

Popovic, S; Upadhyay, J.; Mammosser, J.; Nikolic, M; Vuskovic, L

2014-11-07T23:59:59.000Z

391

A double-frequency dwarf nova oscillation  

E-Print Network [OSTI]

We have detected coherent oscillations (``dwarf nova oscillations'') in Hubble Space Telescope spectra of the dwarf nova OY Car. The oscillations were seen towards the end of a superoutburst of OY Car. The oscillations are extraordinary compared to the many other examples in the literature for two reasons. First, their amplitude is large, with a peak-to-peak variation of 8 to 20% of the total flux over the range 1100 to 2500A. However, most remarkably we find that there are two components present simultaneously. Both have periods close to 18sec (equivalent to 4800 cycles/day) but they are separated by 57.7+/-0.5 cycles/day. The lower frequency component of the pair has a strong second harmonic while its companion, which has about twice its amplitude, does not. The oscillation spectra appear hotter than the mean spectrum and approximately follow the continuum distribution of a black-body with a temperature in the range 30,000 to 50,000K. We tentatively suggest that the weaker non-sinusoidal component could represent the rotation of the white dwarf, although we have been unable to recover any such signal in quiescent data.

T. R. Marsh; Keith Horne

1998-06-02T23:59:59.000Z

392

Asymptotic and measured large frequency separations  

E-Print Network [OSTI]

With the space-borne missions CoRoT and Kepler, a large amount of asteroseismic data is now available. So-called global oscillation parameters are inferred to characterize the large sets of stars, to perform ensemble asteroseismology, and to derive scaling relations. The mean large separation is such a key parameter. It is therefore crucial to measure it with the highest accuracy. As the conditions of measurement of the large separation do not coincide with its theoretical definition, we revisit the asymptotic expressions used for analysing the observed oscillation spectra. Then, we examine the consequence of the difference between the observed and asymptotic values of the mean large separation. The analysis is focused on radial modes. We use series of radial-mode frequencies to compare the asymptotic and observational values of the large separation. We propose a simple formulation to correct the observed value of the large separation and then derive its asymptotic counterpart. We prove that, apart from glitc...

Mosser, B; Belkacem, K; Goupil, M J; Baglin, A; Barban, C; Provost, J; Samadi, R; Auvergne, M; Catala, C

2012-01-01T23:59:59.000Z

393

Cascaded frequency doublers for broadband laser radiation  

SciTech Connect (OSTI)

A new scheme of a cascaded converter of the first harmonic of broadband cw laser radiation into the second harmonic (SH) with compensation for the group walk-off in cascades is proposed and investigated. The conditions under which high conversion coefficients of broadband ({approx}33 cm{sup -1}) single-mode fibre laser radiation with low peak power ({approx}300 W) into the SH are determined for frequency doublers based on the most promising LBO crystal. Conversion of cw radiation with an average power of 300 W and efficiency {eta} = 4.5 % into the SH is obtained in a single LBO crystal. Effect of coherent addition of SH radiation excited in different cascades is demonstrated for two- and three-stage schemes. The expected conversion efficiencies, calculated disregarding loss but taking into account real aberrations of elements, are 18 % and 38 %, respectively. The effect of pumping depletion begins to manifest itself in the third cascade of a three-stage converter; it may reduce the latter value to {approx}30 %. (nonlinear optical phenomena)

Andreev, N F; Vlasova, K V; Davydov, V S; Kulikov, S M; Makarov, A I; Sukharev, Stanislav A; Freidman, Gennadii I; Shubin, S V

2012-10-31T23:59:59.000Z

394

Laser for high frequency modulated interferometry  

DOE Patents [OSTI]

A Stark-tuned laser operating in the 119 micron line of CH[sub 3]OH has an output power of several tens of milliwatts at 30 Watts of pump power while exhibiting a doublet splitting of about ten MHz with the application of a Stark field on the order of 500 volts/cm. This output power allows for use of the laser in a multi-channel interferometer, while its high operating frequency permits the interferometer to measure rapid electron density changes in a pellet injected or otherwise fueled plasma such as encountered in magnetic fusion devices. The laser includes a long far-infrared (FIR) pyrex resonator tube disposed within a cylindrical water jacket and incorporating charged electrodes for applying the Stark field to a gas confined therein. With the electrodes located within the resonator tube, the resonator tube walls are cooled by a flowing coolant without electrical breakdown in the coolant liquid during application of the Stark field. Wall cooling allows for substantially increased FIR output powers. Provision is made for introducing a buffer gas into the resonator tube for increasing laser output power and its operating bandwidth. 10 figures.

Mansfield, D.K.; Vocaturo, M.; Guttadora, L.J.

1991-07-23T23:59:59.000Z

395

Laser for high frequency modulated interferometry  

DOE Patents [OSTI]

A Stark-tuned laser operating in the 119 micron line of CH.sub.3 OH has an output power of several tens of milliwatts at 30 Watts of pump power while exhibiting a doublet splitting of about ten MHz with the application of a Stark field on the order of 500 volts/cm. This output power allows for use of the laser in a multi-channel interferometer, while its high operating frequency permits the interferometer to measure rapid electron density changes in a pellet injected or otherwise fueled plasma such as encountered in magnetic fusion devices. The laser includes a long far-infrared (FIR) pyrex resonator tube disposed within a cylindrical water jacket and incorporating charged electrodes for applying the Stark field to a gas confined therein. With the electrodes located within the resonator tube, the resonator tube walls are cooled by a flowing coolant without electrical breakdown in the coolant liquid during application of the Stark field. Wall cooling allows for substantially increased FIR output powers. Provision is made for introducing a buffer gas into the resonator tube for increasing laser output power and its operating bandwidth.

Mansfield, Dennis K. (E. Windsor, NJ); Vocaturo, Michael (Columbus, NJ); Guttadora, Lawrence J. (Iselin, NJ)

1991-01-01T23:59:59.000Z

396

Prefire identification for pulse power systems  

DOE Patents [OSTI]

Prefires in a high-power, high-frequency, multi-stage pulse generator are detected by a system having an EMI shielded pulse timing transmitter associated with and tailored to each stage of the pulse generator. Each pulse timing transmitter upon detection of a pulse triggers a laser diode to send an optical signal through a high frequency fiber optic cable to a pulse timing receiver which converts the optical signal to an electrical pulse. The electrical pulses from all pulse timing receivers are fed through an OR circuit to start a time interval measuring device and each electrical pulse is used to stop an individual channel in the measuring device thereby recording the firing sequence of the multi-stage pulse generator.

Longmire, Jerry L. (Los Alamos, NM); Thuot, Michael E. (Espanola, NM); Warren, David S. (Los Alamos, NM)

1985-01-01T23:59:59.000Z

397

Prefire identification for pulse-power systems  

DOE Patents [OSTI]

Prefires in a high-power, high-frequency, multi-stage pulse generator are detected by a system having an EMI shielded pulse timing transmitter associated with and tailored to each stage of the pulse generator. Each pulse timing transmitter upon detection of a pulse triggers a laser diode to send an optical signal through a high frequency fiber optic cable to a pulse timing receiver which converts the optical signal to an electrical pulse. The electrical pulses from all pulse timing receivers are fed through an OR circuit to start a time interval measuring device and each electrical pulse is used to stop an individual channel in the measuring device thereby recording the firing sequence of the multi-stage pulse generator.

Longmire, J.L.; Thuot, M.E.; Warren, D.S.

1982-08-23T23:59:59.000Z

398

Identification of Metal Reductases using Proteomic Analysis  

SciTech Connect (OSTI)

Central to the NABIR goal to develop the scientific basis for in situ remediation of radioactive contaminants is the fundamental understanding of microorganisms with dissimilatory metal reducing activity. In order to effectively exploit these bacteria, it is necessary to know which enzymes and pathways are involved. Additionally, it would be advantageous to understand the similarities and differences of these pathways across different bacteria for effective deployment in bioremediation, as well as to identify new microbes capable of such activities. Most approaches to identify these enzymes or enzyme complexes rely on biochemical purification to homogeneity with subsequent Nterminal sequencing of digested peptides. However, loss of activity before achieving purity often necessitates repetition of the entire process. Newly developed proteomics capabilities at PNNL allow for the identification of many proteins from a single sample through mass spectrometry analysis.

Lipton, Mary

2006-06-01T23:59:59.000Z

399

Aquifer Structure Identification Using Stochastic Inversion  

SciTech Connect (OSTI)

This study presents a stochastic inverse method for aquifer structure identification using sparse geophysical and hydraulic response data. The method is based on updating structure parameters from a transition probability model to iteratively modify the aquifer structure and parameter zonation. The method is extended to the adaptive parameterization of facies hydraulic parameters by including these parameters as optimization variables. The stochastic nature of the statistical structure parameters leads to nonconvex objective functions. A multi-method genetically adaptive evolutionary approach (AMALGAM-SO) was selected to perform the inversion given its search capabilities. Results are obtained as a probabilistic assessment of facies distribution based on indicator cokriging simulation of the optimized structural parameters. The method is illustrated by estimating the structure and facies hydraulic parameters of a synthetic example with a transient hydraulic response.

Harp, Dylan R [Los Alamos National Laboratory; Dai, Zhenxue [Los Alamos National Laboratory; Wolfsberg, Andrew V [Los Alamos National Laboratory; Vrugt, Jasper A [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

400

Model Identification for Optimal Diesel Emissions Control  

SciTech Connect (OSTI)

In this paper we develop a model based con- troller for diesel emission reduction using system identification methods. Specifically, our method minimizes the downstream readings from a production NOx sensor while injecting a minimal amount of urea upstream. Based on the linear quadratic estimator we derive the closed form solution to a cost function that accounts for the case some of the system inputs are not controllable. Our cost function can also be tuned to trade-off between input usage and output optimization. Our approach performs better than a production controller in simulation. Our NOx conversion efficiency was 92.7% while the production controller achieved 92.4%. For NH3 conversion, our efficiency was 98.7% compared to 88.5% for the production controller.

Stevens, Andrew J.; Sun, Yannan; Song, Xiaobo; Parker, Gordon

2013-06-20T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Photometric Identification of Cool White Dwarfs  

E-Print Network [OSTI]

We investigate the use of a narrow-band DDO51 filter for photometric identification of cool white dwarfs. We report photometric observations of 30 known cool white dwarfs with temperatures ranging from 10,000 K down to very cool temperatures (<3500 K). Follow-up spectroscopic observations of a sample of objects selected using this filter and our photometric observations show that DDO51 filter photometry can help select cool white dwarf candidates for follow-up multi--object spectroscopy by rejecting 65% of main sequence stars with the same broad--band colors as the cool white dwarfs. This technique is not selective enough to efficiently feed single--object spectrographs. We present the white dwarf cooling sequence using this filter. Our observations show that very cool white dwarfs form a sequence in the r-DDO vs. r-z color--color diagram and demonstrate that significant improvements are needed in white dwarf model atmospheres.

M. Kilic; D. E. Winget; Ted von Hippel; C. F. Claver

2004-06-18T23:59:59.000Z

402

Unambiguous pure state identification without classical knowledge  

E-Print Network [OSTI]

We study how to unambiguously identify a given quantum pure state with one of the two reference pure states when no classical knowledge on the reference states is given but a certain number of copies of each reference quantum state are presented. By the unambiguous identification, we mean that we are not allowed to make a mistake but our measurement can produce an inconclusive result. Assuming the two reference states are independently distributed over the whole pure state space in a unitary invariant way, we determine the optimal mean success probability for an arbitrary number of copies of the reference states and a general dimension of the state space. It is explicitly shown that the obtained optimal mean success probability asymptotically approaches that of the unambiguous discrimination as the number of the copies of the reference states increases.

A. Hayashi; M. Horibe; T. Hashimoto

2005-10-03T23:59:59.000Z

403

Identification marking by means of laser peening  

DOE Patents [OSTI]

The invention is a method and apparatus for marking components by inducing a shock wave on the surface that results in an indented (strained) layer and a residual compressive stress in the surface layer. One embodiment of the laser peenmarking system rapidly imprints, with single laser pulses, a complete identification code or three-dimensional pattern and leaves the surface in a state of deep residual compressive stress. A state of compressive stress in parts made of metal or other materials is highly desirable to make them resistant to fatigue failure and stress corrosion cracking. This process employs a laser peening system and beam spatial modulation hardware or imaging technology that can be setup to impress full three dimensional patterns into metal surfaces at the pulse rate of the laser, a rate that is at least an order of magnitude faster than competing marking technologies.

Hackel, Lloyd A. (Livermore, CA); Dane, C. Brent (Livermore, CA); Harris, Fritz (Rocklin, CA)

2002-01-01T23:59:59.000Z

404

Muon Identification at ATLAS and CMS  

E-Print Network [OSTI]

Muonic final states will provide clean signatures formany physics processes at the LHC. The two LHC experiments ATLAS and CMS will be able to identify muons with a high reconstruction efficiency above 96% and a high transverse momentum resolution better than 2% for transverse momenta below 400 GeV/c and about 10% at 1 TeV/c. The two experiments follow complentary concepts of muon detection. ATLAS has an instrumented air-toroid mangetic system serving as a stand-alone muon spectrometer. CMS relies on high bending power and momentum resolution in the inner detector, and uses an iron yoke to increase its magnetic field. The iron yoke is instrumented with chambers used for muon identification. Therefore, muon momenta can only be reconstructed with high precision by combining inner-detector information with the data from the muon chambers.

Oliver Kortner

2007-07-06T23:59:59.000Z

405

Definition: Transmission Angle and Frequency Monitoring | Open Energy  

Open Energy Info (EERE)

Transmission Angle and Frequency Monitoring Transmission Angle and Frequency Monitoring Jump to: navigation, search Dictionary.png Transmission Angle and Frequency Monitoring An advanced transmission application that uses angle and frequency measurements from PMUs to indicate loss of generation or other disturbances causing a change in the supply/demand balance.[1] Related Terms transmission lines, advanced transmission applications, transmission line References ↑ https://www.smartgrid.gov/category/technology/transmission_angle_and_frequency_monitoring [[Cat LikeLike UnlikeLike You like this.Sign Up to see what your friends like. egory: Smart Grid Definitionssmart grid,smart grid, |Template:BASEPAGENAME]]smart grid,smart grid, Retrieved from "http://en.openei.org/w/index.php?title=Definition:Transmission_Angle_and_Frequency_Monitoring&oldid=502506

406

Exact high-frequency theory of surface plasmas  

Science Journals Connector (OSTI)

New frequency-moment sum rules are formulated for the purpose of assessing the behavior of two-dimensional classical electron liquids at high frequencies [???p(k)]. For nonzero coupling strength (characterized by ?), the convergence of our new fifth-frequency-moment rule ??5? is guaranteed at short range. However, in the Vlasov (?=0) limit, ??5? exhibits marked 1? and ln? divergences. The ensuing breakdown in the high-frequency structure of the dielectric response function leads to the conclusion that the Vlasov limit is unphysical for two-dimensional classical electron liquids in the high-frequency domain. Our theory complements the current low-frequency [???p(k)] theories, all of which reinforce the notion that the reduced dimensionality of surface plasmas considerably enhances short-range correlation and dynamic collisional effects.

De-xin Lu and Kenneth I. Golden

1983-08-01T23:59:59.000Z

407

Selfish atom selects quantum resonances at fractional atomic frequencies  

E-Print Network [OSTI]

We show that the atom as a "quantum entity", driven by an external field in the form of pulse sequence at repetition rate equal to the internal quantum frequency divided by an integer n, responds resonantly. It seeks and finds its characteristic frequencies in any possible combination of its frequencies. This is an indication of self expression by the atom at many sub-frequencies of its own transition frequencies. It is a non-intuitive phenomenon since the external repetition rate has no quantum character, yet the atom responds to it if the rate is equal to 1/n its eigen-frequency. We believe that our results will have implications in other quantum related processes, such as resonant enhancement of chemical reactions and biological processes.

Gennady A. Koganov; Reuben Shuker

2014-09-17T23:59:59.000Z

408

High-frequency response and the possibilities of frequency-tunable narrow-band terahertz amplification in resonant tunneling nanostructures  

SciTech Connect (OSTI)

The characteristics of the high-frequency response of single- and double-well resonant tunneling structures in a dc electric field are investigated on the basis of the numerical solution of a time-dependent Schroedinger equation with open boundary conditions. The frequency dependence of the real part of high frequency conductivity (high-frequency response) in In{sub 0.53}Ga{sub 0.47}As/AlAs/InP structures is analyzed in detail for various values of the dc voltage V{sub dc} in the negative differential resistance (NDR) region. It is shown that double-well three-barrier structures are promising for the design of terahertz-band oscillators. The presence of two resonant states with close energies in such structures leads to a resonant (in frequency) response whose frequency is determined by the energy difference between these levels and can be controlled by varying the parameters of the structure. It is shown that, in principle, such structures admit narrow-band amplification, tuning of the amplification frequency, and a fine control of the amplification (oscillation) frequency in a wide range of terahertz frequencies by varying a dc electric voltage applied to the structure. Starting from a certain width of the central intermediate barrier in double-well structures, one can observe a collapse of resonances, where the structure behaves like a single-well system. This phenomenon imposes a lower limit on the oscillation frequency in three-barrier resonant tunneling structures.

Kapaev, V. V., E-mail: kapaev@sci.lebedev.ru; Kopaev, Yu. V.; Savinov, S. A.; Murzin, V. N. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)] [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

2013-03-15T23:59:59.000Z

409

Inhomogeneous High Frequency Expansion-Free Gravitational Waves  

E-Print Network [OSTI]

We describe a natural inhomogeneous generalization of high frequency plane gravitational waves. The waves are high frequency waves of the Kundt type whose null propagation direction in space-time has vanishing expansion, twist and shear but is not covariantly constant. The introduction of a cosmological constant is discussed in some detail and a comparison is made with high frequency gravity waves having wave fronts homeomorphic to 2-spheres.

C. Barrabes; P. A. Hogan

2007-06-18T23:59:59.000Z

410

Method and apparatus for optical communication by frequency modulation  

DOE Patents [OSTI]

Laser optical communication according to this invention is carried out by producing multi-frequency laser beams having different frequencies, splitting one or more of these constituent beams into reference and signal beams, encoding information on the signal beams by frequency modulation and detecting the encoded information by heterodyne techniques. Much more information can be transmitted over optical paths according to the present invention than with the use of only one path as done previously.

Priatko, Gordon J. (Oakland, CA)

1988-01-01T23:59:59.000Z

411

Propagation of Audio-Frequency Radio Waves to Great Distances  

Science Journals Connector (OSTI)

... distances from the source clearly showed that the main concentration of energy lay in the audio-frequency band below 10 kc./s. and that the higher-frequency components moved forward ... selective absorption, which, together with the low attenuation at the extreme ends of the audio-frequency range, accounts for the observed long-distance propagation characteristics of atmospherics1. As is ...

F. W. CHAPMAN; R. C. V. MACARIO

1956-05-19T23:59:59.000Z

412

A Simple Method of Producing Wide-Band Frequency Modulation  

Science Journals Connector (OSTI)

... THE resistance-capacity tuned oscillator is well known as a very good generator of audio-frequency oscillations. In a recent communication by Rakshit and Bhattacharyya1 it was pointed out ... out that the conventional circuit of a three-phase system, with components selected for producing audio-frequency oscillations, invariably generates radio-frequencies by virtue of the unavoidable stray and inter- ...

H. RAKSHIT; N. SARKAR

1949-04-09T23:59:59.000Z

413

Study of a dual frequency atmospheric pressure corona plasma  

Science Journals Connector (OSTI)

Radio frequency mixing of 2 and 13.56 MHz was investigated by performing experimental measurements on the atmospheric pressurecoronaplasma. As a result of the dual frequency length current density and electron excitation temperature of the plasma were increased while the gas temperature was maintained at roughly the same level when compared to the respective single frequency plasmas. Moreover observation of time-resolvedimages revealed that the dual frequency plasma has a discharge mode of 2 MHz positive streamer 2 MHz negative glow and 13.56 MHz continuous glow.

Dan Bee Kim; S. Y. Moon; H. Jung; B. Gweon; Wonho Choe

2010-01-01T23:59:59.000Z

414

LabVIEW internal combustion engine detonation frequency analysis.  

E-Print Network [OSTI]

??The project discussed herein is to develop the hardware and software necessary to identify the detonation frequency of a BMW S14 internal combustion engine. This… (more)

McClain, Kevin

2011-01-01T23:59:59.000Z

415

Smart Frequency-Sensing Charge Controller for Electric Vehicles...  

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

licensing:System uses frequency-sensing charge controllers that provide automatic demand response and regulation service to the grid by reducing or turning the charging load...

416

High-frequency filtered images of an optically thick edge  

Science Journals Connector (OSTI)

Peculiarities of high-frequency filtering (contouring) of images of symmetric thick (extended along the optical axis) edge are investigated in analytical form by the Kirchhoff–Fresnel...

Chugui, Yu V; Sokolov, V A

1998-01-01T23:59:59.000Z

417

Study of a dual frequency atmospheric pressure corona plasma  

SciTech Connect (OSTI)

Radio frequency mixing of 2 and 13.56 MHz was investigated by performing experimental measurements on the atmospheric pressure corona plasma. As a result of the dual frequency, length, current density, and electron excitation temperature of the plasma were increased, while the gas temperature was maintained at roughly the same level when compared to the respective single frequency plasmas. Moreover, observation of time-resolved images revealed that the dual frequency plasma has a discharge mode of 2 MHz positive streamer, 2 MHz negative glow, and 13.56 MHz continuous glow.

Kim, Dan Bee; Moon, S. Y.; Jung, H.; Gweon, B.; Choe, Wonho [Department of Physics, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)

2010-05-15T23:59:59.000Z

418

Load Shedding Algorithm Using Voltage and Frequency Data.  

E-Print Network [OSTI]

??Under frequency load shedding schemes have been widely used, to restore power system stability post major disturbances. However, the analysis of recent blackouts suggests that… (more)

Joshi, Poonam

2007-01-01T23:59:59.000Z

419

Electricity demand as frequency controlled reserves, ENS (Smart...  

Open Energy Info (EERE)

ENS (Smart Grid Project) Jump to: navigation, search Project Name Electricity demand as frequency controlled reserves, ENS Country Denmark Coordinates 56.26392, 9.501785...

420

Electricity demand as frequency controlled reserves, ForskEL...  

Open Energy Info (EERE)

ForskEL (Smart Grid Project) Jump to: navigation, search Project Name Electricity demand as frequency controlled reserves, ForskEL Country Denmark Coordinates 56.26392,...

Note: This page contains sample records for the topic "frequency identification rfid" 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

Alternative Approaches for Incentivizing the Frequency Responsive Reserve Ancillary Service  

SciTech Connect (OSTI)

Frequency responsive reserve is the autonomous response of generators and demand response to deviations of system frequency, usually as a result of the instantaneous outage of a large supplier. Frequency responsive reserve arrests the frequency decline resulting in the stabilization of system frequency, and avoids the triggering of under-frequency load-shedding or the reaching of unstable frequencies that could ultimately lead to system blackouts. It is a crucial service required to maintain a reliable and secure power system. Regions with restructured electricity markets have historically had a lack of incentives for frequency responsive reserve because generators inherently provided the response and on large interconnected systems, more than sufficient response has been available. This may not be the case in future systems due to new technologies and declining response. This paper discusses the issues that can occur without proper incentives and even disincentives, and proposes alternatives to introduce incentives for resources to provide frequency responsive reserve to ensure an efficient and reliable power system.

Ela, E.; Milligan, M.; Kirby, B.; Tuohy, A.; Brooks, D.

2012-03-01T23:59:59.000Z

422

Frequency Shift of Radio Signals in Curved Spacetimes  

E-Print Network [OSTI]

space . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7.2 Schwarzschild space . . . . . . . . . . . . . . . 33 10 Another source of the shift in frequency 34 10.1 Reflection in a relativistically moving mirror

423

Method and apparatus for radio frequency ceramic sintering  

DOE Patents [OSTI]

Radio frequency energy is used to sinter ceramic materials. A coaxial waveguide resonator produces a TEM mode wave which generates a high field capacitive region in which a sample of the ceramic material is located. Frequency of the power source is kept in the range of radio frequency, and preferably between 60-80 MHz. An alternative embodiment provides a tunable radio frequency circuit which includes a series input capacitor and a parallel capacitor, with the sintered ceramic connected by an inductive lead. This arrangement permits matching of impedance over a wide range of dielectric constants, ceramic volumes, and loss tangents. 6 figures.

Hoffman, D.J.; Kimrey, H.D. Jr.

1993-11-30T23:59:59.000Z

424

Method and apparatus for radio frequency ceramic sintering  

DOE Patents [OSTI]

Radio frequency energy is used to sinter ceramic materials. A coaxial waveguide resonator produces a TEM mode wave which generates a high field capacitive region in which a sample of the ceramic material is located. Frequency of the power source is kept in the range of radio frequency, and preferably between 60-80 MHz. An alternative embodiment provides a tunable radio frequency circuit which includes a series input capacitor and a parallel capacitor, with the sintered ceramic connected by an inductive lead. This arrangement permits matching of impedance over a wide range of dielectric constants, ceramic volumes, and loss tangents.

Hoffman, Daniel J. (Oak Ridge, TN); Kimrey, Jr., Harold D. (Knoxville, TN)

1993-01-01T23:59:59.000Z

425

Determining Hydrological Controls on Flood Frequency | U.S. DOE...  

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

increasing aridity, variability increases. In contrast, BFI was found to exert a second-order control on flood frequency. Higher BFI, meaning higher contributions of subsurface...

426

Multiple frequency electron cyclotron heating for the Levitated Dipole Experiment .  

E-Print Network [OSTI]

??The use of multiple frequencies of electron cyclotron resonance heating (ECRH) in the Levitated Dipole Experiment (LDX) is an important tool that will tailor the… (more)

Mahar, Scott B

2005-01-01T23:59:59.000Z

427

Energy storage for frequency regulation on the electric grid .  

E-Print Network [OSTI]

??Ancillary services such as frequency regulation are required for reliable operation of the electric grid. Currently, the same traditional thermal generators that supply bulk power… (more)

Leitermann, Olivia

2012-01-01T23:59:59.000Z

428

Identification of Low Emissions Agricultural Pathways and Priorities for  

Open Energy Info (EERE)

Identification of Low Emissions Agricultural Pathways and Priorities for Identification of Low Emissions Agricultural Pathways and Priorities for Mitigation in Agricultural Landscapes using Integrated Assessment Modeling and Scenarios Jump to: navigation, search Name Identification of Low Emissions Agricultural Pathways and Priorities for Mitigation in Agricultural Landscapes using Integrated Assessment Modeling and Scenarios Agency/Company /Organization CGIAR's Climate Change, Agriculture and Food Security (CCAFS), Canadian International Development Agency (CIDA), the Danish International Development Agency (DANIDA), the European Union, International Fund for Agricultural Development (IFAD) Partner International Institute for Applied Systems Analysis (IIASA) Sector Land Focus Area Agriculture Topics Background analysis, Baseline projection, Low emission development planning, -LEDS, Pathways analysis, Policies/deployment programs

429

Proteomic analysis of gliosomes from mouse brain: identification and investigation of glial membrane proteins  

Science Journals Connector (OSTI)

Proteomic analysis of gliosomes from mouse brain: identification and investigation of glial membrane proteins ...

Karen E. Carney; Marco Milanese; Pim van Nierop; Ka Wan Li; Stéphane H.R. Oliet; August B. Smit; Giambattista Bonanno; Mark H.G. Verheijen

2014-10-13T23:59:59.000Z

430

Introduction Luminance and Chrominance High Frequency Content References Smoke Detection in Stationary Video Using  

E-Print Network [OSTI]

frequency energy measurements #12;Introduction Luminance and Chrominance High Frequency Content References #12;Introduction Luminance and Chrominance High Frequency Content References Theory Energy Frequency Content References Application VIDEO: Luminance vs. Chrominance Energy Ratio: #12;Introduction

Knaust, Helmut

431

Frequency effects on the electron density and {alpha}-{gamma} mode transition in atmospheric radio frequency discharges  

SciTech Connect (OSTI)

In this paper, a one-dimensional model is explored to investigate the frequency effects on the characteristics of atmospheric radio frequency discharges at a given power. The simulation data and analytical results show that the improvement of electron density can be observed with better discharge stability by increasing excitation frequency in an appropriate range. Using the analytical equations deduced from the model, the mean electron density could be inferred by means of the measured parameters. The {alpha}-{gamma} mode transition especially in high frequency discharges is also analytically discussed based on the theoretical equations.

Zhang Yuantao [Shandong Provincial Key Lab of UHV Technology and Gas Discharge Physics, School of Electrical Engineering, Shandong University, Jinan, Shandong Province 250061 (China); Cui Shaoyan [School of Mathematics and Information, Ludong University, Yantai, Shandong Province 264025 (China)

2011-08-15T23:59:59.000Z

432

Engineering of Composite Media for Shields at Microwave Frequencies  

E-Print Network [OSTI]

-Rolla, Rolla, MO, USA e-mail: marinak@umr.edu Konstantin Rozanov Institute for Theoretical and Applied-static approximation in the frequency-domain is employed. Factors affecting frequency characteristics of composites of constitutive parameters of inclusions (permittivity, permeability, conductivity, etc.); · shape of inclusions

Koledintseva, Marina Y.

433

Satellite Ionosonde Records: Resonances Below the Cyclotron Frequency  

Science Journals Connector (OSTI)

...radiation from atmospheric constituents in...multiples of the plasma frequency and...APRIL 1968 15 Mhz during each 30-second...function of the plasma frequency and...The Theory of Plasma Waves (McGraw-Hitl...dissected in the area of the site...The cave is a large alcove in a cliff...

R. E. Barrington; T. R. Hartz

1968-04-12T23:59:59.000Z

434

What's the Frequency, Kenneth?: Sublinear Fourier Sampling Off the Grid  

E-Print Network [OSTI]

What's the Frequency, Kenneth?: Sublinear Fourier Sampling Off the Grid Petros Boufounos1 , Volkan Fourier sampling algorithm for a case of sparse off-grid frequency recovery. These are signals {j} satisfy j [, 2-] and mini=j |i -j| for some > 0. We design a sublinear time randomized

Boufounos, Petros T.

435

Global warming and hurricane intensity and frequency: The debate continues  

E-Print Network [OSTI]

Global warming and hurricane intensity and frequency: The debate continues Megan Mc of these changes. Some scientists believe that global warming and increased sea surface temperatures are to blame, global warming and increased sea surface temperatures do appear to have influenced hurricane frequency

Kareem, Ahsan

436

Resonant Heating Due to Cyclotron Subharmonic Frequency Waves  

Science Journals Connector (OSTI)

A direct ion heating process which is resonant with the wave at the cyclotron subharmonic frequency, ?=32?i, is discovered through the particle-simulation investigation of the ion Bernstein-wave heating. The particle trapping in phase space due to the wave of an arbitrary cyclotron subharmonic frequency is studied theoretically and numerically confirmed.

H. Abe; H. Okada; R. Itatani; M. Ono; H. Okuda

1984-09-17T23:59:59.000Z

437

Machine Learning for Market Microstructure and High Frequency Trading  

E-Print Network [OSTI]

Machine Learning for Market Microstructure and High Frequency Trading Michael Kearns Yuriy Nevmyvaka 1 Introduction In this chapter, we overview the uses of machine learning for high frequency trading and market microstructure data and problems. Machine learning is a vibrant subfield of computer

Plotkin, Joshua B.

438

Frequency spectrum analysis of electromagnetic waves radiated by electrical discharges  

Science Journals Connector (OSTI)

In this study, we analyzed the frequency spectrum of the electromagnetic waves radiated by an electric discharge as a basic method for developing an on-line diagnostic technique for power equipment installed inside closed-switchboards. In order to simulate ... Keywords: closed-switchboard, electromagnetic shielding room, electromagnetic wave, frequency spectrum, local discharge, series arc discharge

Hyeon-Kyu Cha; Sun-Jae Kim; Dae-Won Park; Gyung-Suk Kil

2011-03-01T23:59:59.000Z

439

Testing for Change in the Frequency of El Niño Events  

Science Journals Connector (OSTI)

This note describes and applies a test for trend in the frequency of El Niño events over the period 1525–1987. Although there appears to have been a significant increase in frequency over this period, this result is consistent with an overall ...

Andrew R. Solow

1995-10-01T23:59:59.000Z

440

Cavity Frequency Measurement and Initial Tuning at FLASH  

E-Print Network [OSTI]

interface DOOCS panel #12;9 Integration with LLRF Control System · New version of firmware for frequency sweeping · Created DOOCS frequency sweeping procedure server · Operator Interface · Automated data logging;14 Documentation · Complete and detailed commissioning documentation has been done · Excel document with links

Note: This page contains sample records for the topic "frequency identification rfid" 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

Optimal Frequency for Plasma Heating with a Single Electrostatic Wave  

E-Print Network [OSTI]

for electrostatic ion cyclotron wave launching, and laser-induced fluorescence measurements were made of ion heating of the ion cyclotron frequency. The measurements revealed a dependence of heating on fre- quency as predictedOptimal Frequency for Plasma Heating with a Single Electrostatic Wave Benjamin Jorns and Edgar Y

Choueiri, Edgar

442

Improved method for calculating projected frequencies along a reaction path  

E-Print Network [OSTI]

and calculating projected frequencies perpendicular to the reaction path have been examined. The SN2 reaction. The identity SN2 reaction of chloride with methyl chlo- ride is a suitable test case for exploring the accuracyImproved method for calculating projected frequencies along a reaction path Anwar G. Baboul and H

Schlegel, H. Bernhard

443

Digital Control of Resonant Converters: Enhancing Frequency Resolution by Dithering  

E-Print Network [OSTI]

-resolution frequency drive when the quality factor of the network is high or to avoid limit cycle oscillations resolution enhancer for resonant network drive. I. INTRODUCTION In a variety of applications, variable ballasts piezoelectric devices) [1-3]. In such cases, the frequency resolution of the drive is crucial

444

Particle Swarm Optimization of High-frequency Transformer  

E-Print Network [OSTI]

Particle Swarm Optimization of High-frequency Transformer Hengsi Qin, Jonathan W. Kimball, Ganesh K of Science and Technology, Rolla, MO 65409-0040 USA Abstract--A high frequency transformer is a critical transformer. Operation of a DAB converter requires its transformer to have a specific amount of winding

Kimball, Jonathan W.

445

Electromagnetic source localization with finite set of frequency measurements  

E-Print Network [OSTI]

A phase conjugation algorithm for localizing an extended radiating electromagnetic source from boundary measurements of the electric field is presented. Measurements are taken over a finite number of frequencies. The artifacts related to the finite frequency data are tackled with $l_1-$regularization blended with the fast iterative shrinkage-thresholding algorithm with backtracking of Beck & Teboulle.

Abdul Wahab; Amer Rasheed; Rab Nawaz; Saman Anjum

2014-09-16T23:59:59.000Z

446

Power Systems Frequency Dynamic Monitoring System Design and Applications  

E-Print Network [OSTI]

Disturbance Recorder (FDR), Phasor Measurement Unit (PMU), Wide Area Measurement System, Under Frequency Load Management System (IMS) to work as a central server to process the frequency data. The device comparison between FDR and commercial PMU (Phasor Measurement Unit) demonstrate the advantage of FNET. The web

Schrijver, Karel

447

Effects of Solar Eclipse on Audio Frequency Atmospherics  

Science Journals Connector (OSTI)

... that all frequencies above the range of interest were eliminated, thus insuring direct reception of audio frequencies without a detection process occurring anywhere in the apparatus. The amplifier output was ... The observations of the resonance tone are shown in Fig. 2.

EVERETT T. BURTON; EDWARD M. BOARDMAN

1933-01-21T23:59:59.000Z

448

Duration of frication noise required for identification of English fricatives  

E-Print Network [OSTI]

. These stimuli, and the entire syllables, were presented to 12 subjects for consonant identification. Results show that the listener does not require the entire fricative–vowel syllable in order to correctly perceive a fricative. The required frication duration...

Jongman, Allard

1989-04-01T23:59:59.000Z

449

Role of shapes in the identification of superheavy nuclei  

SciTech Connect (OSTI)

The synthesis and identification of superheavy nuclei have taken a dramatic turn recently with the emergence of hot fusion reactions. Such new methods have enabled the synthesis and identification of superheavy elements with Z=114-116 and 118. The identification of such elements is mainly done by observing their {alpha}-decay chains terminating with spontaneous fission events. In such studies, the role played by the shapes of superheavy elements has assumed great significance. In this work, we use the Shanmugam-Kamalaharan model for {alpha} decay, which is versatile in accounting for the shapes and deformations of the parent and the daughter nuclei as well as the charge redistribution (also termed charge equilibration) process during the decay. Our calculations turn out to be very useful for the identification of superheavy elements.

Shanmugam, G.; Sudhakar, S.; Niranjani, S. [SK Institute of Higher Studies, S-2, Lotus Colony, Nandanam, Chennai - 600 035 (India)

2005-09-01T23:59:59.000Z

450

Identification and Characterization of Near-Term Direct Hydrogen...  

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

PEM Fuel Cell Markets Identification and Characterization of Near-Term Direct Hydrogen PEM Fuel Cell Markets July 9th presentation for the U.S. DOE HFCIT bi-montly informational...

451

INFRARED THERMAL IMAGING OF AUTOMOBILES: Identification of Cold Start Vehicles  

E-Print Network [OSTI]

INFRARED THERMAL IMAGING OF AUTOMOBILES: Identification of Cold Start Vehicles Angela M. Monateri at the infrared image from an automobile. ·The camera was set up with a FEAT 3000 unit to compare emissions vs

Denver, University of

452

Identification of performance indicators for nuclear power plants  

E-Print Network [OSTI]

Performance indicators have been assuming an increasingly important role in the nuclear industry. An integrated methodology is proposed in this research for the identification and validation of performance indicators for ...

Sui, Yu, 1973-

2001-01-01T23:59:59.000Z

453

A Binary Linear Programming Approach for LCA System Boundary Identification  

Science Journals Connector (OSTI)

One of the very first steps in conducting life cycle assessment (LCA) is system boundaries identification. A binary ... boundary between significant and insignificant processes in a LCA study. The proposed model ...

Feri Afrinaldi; Hong-Chao Zhang…

2013-01-01T23:59:59.000Z

454

Multi-channel blind system identification for central hemodynamic monitoring  

E-Print Network [OSTI]

Multi-channel Blind System Identification (MBSI) is a technique for estimating both an unknown input and unknown channel dynamics from simultaneous output measurements at different channels through which the input signal ...

Zhang, Yi, 1973-

2002-01-01T23:59:59.000Z

455

System Identification and the Modeling of Sailing Yachts  

E-Print Network [OSTI]

This research represents an exploration of sailing yacht dynamics with full-scale sailing motion data, physics-based models, and system identification techniques. The goal is to provide a method of obtaining and validating ...

Legursky, Katrina

2013-12-31T23:59:59.000Z

456

Integrated circuit outlier identification by multiple parameter correlation  

E-Print Network [OSTI]

(defective chips, or chips that lead to functional failure) from apparent outliers (seemingly defective, but fault-free chips). The outlier identification methods in this research primarily rely on wafer-level spatial correlation, but also use additional test...

Sabade, Sagar Suresh

2004-09-30T23:59:59.000Z

457

Interactive software for model predictive control with simultaneous identification  

E-Print Network [OSTI]

This thesis is a unified practical framework in the theory of Model Predictive Control with Simultaneous Identification. The ability to change and visualize parameters on-line makes this toolbox attractive for control engineers, and for anyone...

Echeverria Del Rio, Pablo

2000-01-01T23:59:59.000Z

458

Star-ND (Multi-Dimensional Star-Identification)  

E-Print Network [OSTI]

In order to perform star-identification with lower processing requirements, multi-dimensional techniques are implemented in this research as a database search as well as to create star pattern parameters. New star pattern parameters are presented...

Spratling, Benjamin

2012-07-16T23:59:59.000Z

459

Identification of MHF Fracture Planes and Flow Paths- a Correlation...  

Open Energy Info (EERE)

Identification of MHF Fracture Planes and Flow Paths- a Correlation of Well Log Data with Patterns in Locations of Induced Seismicity Jump to: navigation, search OpenEI Reference...

460

Identification of protein markers of neuroprotection from radiation  

Science Journals Connector (OSTI)

...Meeting-- Apr 12-16, 2008; San Diego, CA Identification of protein markers of neuroprotection from radiation Dinesh Kumar Thotala Sheerin Khatib-Shahidi Allie Fu Richard Caprioli Dennis Hallahan Eugenia Yazlovitskaya Vanderbilt University...

Dinesh Kumar Thotala; Sheerin Khatib-Shahidi; Allie Fu; Richard Caprioli; Dennis Hallahan; and Eugenia Yazlovitskaya

2008-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "frequency identification rfid" 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

Identification of Cardiac Infarctions from ECG-Measurements  

E-Print Network [OSTI]

Identification of Cardiac Infarctions from ECG-Measurements DIPLOMARBEIT vorgelegt von Melanie . . . . . . . . . . . . . . . . 3 2.2 The ECG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 41 5.1 ECG-Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 5

Münster, Westfälische Wilhelms-Universität

462

Definition: Controlled Source Frequency-Domain Magnetics | Open Energy  

Open Energy Info (EERE)

Frequency-Domain Magnetics Frequency-Domain Magnetics Jump to: navigation, search Dictionary.png Controlled Source Frequency-Domain Magnetics AquaTrackTM, a controlled-source frequency domain magnetics tool (CS-FDM), is a patented invention by Willowstick Technologies. This technique is meant to characterize groundwater conditions and flow patterns up to 1,000 m depth.[1] References ↑ http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2006/kofoed.pdf Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Controlled_Source_Frequency-Domain_Magnetics&oldid=590084" Category: Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load)

463

Controlled Source Frequency-Domain Magnetics At Salt Wells Area  

Open Energy Info (EERE)

Controlled Source Frequency-Domain Magnetics At Salt Wells Area Controlled Source Frequency-Domain Magnetics At Salt Wells Area (Montgomery, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Controlled Source Frequency-Domain Magnetics At Salt Wells Area (Montgomery, Et Al., 2005) Exploration Activity Details Location Salt Wells Area Exploration Technique Controlled Source Frequency-Domain Magnetics Activity Date 2004 - 2004 Usefulness useful DOE-funding Unknown Exploration Basis AMP Resource contracted Willowstick Technologies, LLC to conduct a Controlled Source-Frequency Domain Magnetics (CS-FDM) geophysical investigation at Salt Wells in order to characterize and delineate areas showing the greatest concentrations and highest temperatures of geothermal groundwater. The investigation also sought to map blind faults beneath the

464

The Breakdown of Gases in High Frequency Electrical Fields  

Science Journals Connector (OSTI)

A theory is proposed to explain the mechanism of breakdown of gases in high frequency electrical fields. It is assumed that breakdown occurs when the electrical field and the frequency are such that an electron acquires the ionizing energy at the end of one mean free path. The field for breakdown is thus a function of the frequency of the applied potential and the ionization potential and pressure of the gas. The fields for breakdown of argon and xenon are calculated and expressed as functions of the frequency and the gas pressure. The calculated potentials are compared with experimental data, and good agreement is found for frequencies greater than 10×106 c.p.s.

Donald H. Hale

1948-05-01T23:59:59.000Z

465

Monitoring method and apparatus using high-frequency carrier  

DOE Patents [OSTI]

A method and apparatus for monitoring an electrical-motor-driven device by injecting a high frequency carrier signal onto the power line current. The method is accomplished by injecting a high frequency carrier signal onto an AC power line current. The AC power line current supplies the electrical-motor-driven device with electrical energy. As a result, electrical and mechanical characteristics of the electrical-motor-driven device modulate the high frequency carrier signal and the AC power line current. The high frequency carrier signal is then monitored, conditioned and demodulated. Finally, the modulated high frequency carrier signal is analyzed to ascertain the operating condition of the electrical-motor-driven device. 6 figs.

Haynes, H.D.

1996-04-30T23:59:59.000Z

466

Identification of factors affecting the palatability of goat meat  

E-Print Network [OSTI]

Copyright by MERRITT IVAN PIKE 1975 IDENTIFICATION OF FACTORS AFFECTING THE PALATABILITY OF GOAT MEAT A Thesis by MERRITT IVAN PIKE Submitted to the Graduate College of Texas A8M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1974 Major Subject: Animal Science (Meat Science) IDENTIFICATION OF FACTORS AFFECTING THE PALATABILITY OF GOAT MEAT A Thesis by MERRITT IVAN PIKE Approved as to style and content by: Co- an of Committee Co...

Pike, Merritt Ivan

2012-06-07T23:59:59.000Z

467

Identification of toxic components in beechwood and petroleum creosotes  

E-Print Network [OSTI]

IDENTIFICATION OF TOXIC COMPONENTS IN BEECHWOOD AND PETROLEUM CREOSOTES A Thesis by MEHMET S. OKAYGUN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1989 Major Subject: Chemical Engineering IDENTIFICATION OF TOXIC COMPONENTS IN BEECHWOOD AND PETROLEUM CREOSOTES A Thesis by MEHMET S. OKAYGUN Approved as to style and content by: Ay(hn Akger (Co-Chairman of Committee) T. Rick Irvin (Co...

Okaygun, Mehmet S.

2012-06-07T23:59:59.000Z

468

Rose germplasm identification and analysis with RAPD markers  

E-Print Network [OSTI]

, it is rapid, radioisotopes are not necessary, only a tiny amount of DNA is needed (nanograms per reaction), and reactions can be automated (Williams et al. , 1990). The applications of the RAPD technique includes variety identification and parentage...ROSE GERMPLASM IDENTIFICATION AND ANALYSIS WITH RAPD MARKERS A Thesis by CHIH-HUI JAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...

Jan, Chih-Hui

1996-01-01T23:59:59.000Z

469

Rapid identification of bacteria using an umbelliferone fluorescent assay  

E-Print Network [OSTI]

RAPID IDENTIFICATION OF BACTERIA USING AN UMBELLIFERONE FLUORESCENT ASSAY A Thesis by RICHARD THOMAS CHAMBLIN, JR, Submitted to the Graduate College of' Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE August 1983 Major Subject: Veterinary Microbiology RAPID IDENTIFICATION OF BACTERIA USING AN UMBELLIFERONE FLUORESCENT ASSAY A Thesis by RICHARD THOMAS CHAMBLIN, JR ~ Approved as to style and content by ( -Chairman of Committee) John M...

Chamblin, Richard Thomas

1983-01-01T23:59:59.000Z

470

Spin signatures of photogenerated radical anions in polymer-[70] fullerene bulk-heterojunctions : high-frequency pulsed EPR spectroscopy.  

SciTech Connect (OSTI)

Charged polarons in thin films of polymer-fullerene composites are investigated by light-induced electron paramagnetic resonance (EPR) at 9.5 GHz (X-band) and 130 GHz (D-band). The materials studied were poly(3-hexylthiophene) (PHT), [6,6]-phenyl-C61-butyric acid methyl ester (C{sub 60}-PCBM), and two different soluble C{sub 70}-derivates: C{sub 70}-PCBM and diphenylmethano[70]fullerene oligoether (C{sub 70}-DPM-OE). The first experimental identification of the negative polaron localized on the C{sub 70}-cage in polymer-fullerene bulk heterojunctions has been obtained. When recorded at conventional X-band EPR, this signal is overlapping with the signal of the positive polaron, which does not allow for its direct experimental identification. Owing to the superior spectral resolution of the high frequency D-band EPR, we were able to separate light-induced signals from P{sup +} and P{sup -} in PHT-C{sub 70} bulk heterojunctions. Comparing signals from C{sub 70}-derivatives with different side-chains, we have obtained experimental proof that the polaron is localized on the cage of the C{sub 70} molecule.

Poluektov, O. G.; Filippone, S.; Martin, N.; Sperlich, A.; Deibel, C.; Dyakonov, V. (Chemical Sciences and Engineering Division); (Univ. Complutense de Madrid); (Univ. of Wurzburg)

2010-01-01T23:59:59.000Z

471

Spin Signatures of Photogenerated Radical Anions in Polymer-[70]Fullerene Bulk Heterojunctions: High Frequency Pulsed EPR Spectroscopy  

E-Print Network [OSTI]

Charged polarons in thin films of polymer-fullerene composites are investigated by light-induced electron paramagnetic resonance (EPR) at 9.5 GHz (X-band) and 130 GHz (D-band). The materials studied were poly(3-hexylthiophene) (PHT), [6,6]-phenyl-C61-butyric acid methyl ester (C60-PCBM), and two different soluble C70-derivates: C70-PCBM and diphenylmethano[70]fullerene oligoether (C70-DPM-OE). The first experimental identification of the negative polaron localized on the C70-cage in polymer-fullerene bulk heterojunctions has been obtained. When recorded at conventional X-band EPR, this signal is overlapping with the signal of the positive polaron, which does not allow for its direct experimental identification. Owing to the superior spectral resolution of the high frequency D-band EPR, we were able to separate light-induced signals from P+ and P- in PHT-C70 bulk heterojunctions. Comparing signals from C70-derivatives with different side-chains, we have obtained experimental proof that the polaron is localized on the cage of the C70 molecule.

Oleg G. Poluektov; Salvatore Filippone; Nazario Martin; Andreas Sperlich; Carsten Deibel; Vladimir Dyakonov

2011-10-07T23:59:59.000Z

472

Spin Signatures of Photogenerated Radical Anions in Polymer?[70]Fullerene Bulk Heterojunctions: High Frequency Pulsed EPR Spectroscopy  

SciTech Connect (OSTI)

Charged polarons in thin films of polymer?fullerene composites are investigated by light-induced electron paramagnetic resonance (EPR) at 9.5 GHz (X-band) and 130 GHz (D-band). The materials studied were poly(3-hexylthiophene) (PHT), [6,6]-phenyl-C61-butyric acid methyl ester (C{sub 60}-PCBM), and two different soluble C{sub 70}-derivates: C{sub 70}-PCBM and diphenylmethano[70]fullerene oligoether (C{sub 70}-DPM-OE). The first experimental identification of the negative polaron localized on the C{sub 70}-cage in polymer?fullerene bulk heterojunctions has been obtained. When recorded at conventional X-band EPR, this signal is overlapping with the signal of the positive polaron, which does not allow for its direct experimental identification. Owing to the superior spectral resolution of the high frequency D-band EPR, we were able to separate light-induced signals from P{sup +} and P{sup ?} in PHT?C{sub 70} bulk heterojunctions. Comparing signals from C{sub 70}-derivatives with different side-chains, we have obtained experimental proof that the polaron is localized on the cage of the C{sub 70} molecule.

Poluektov, Oleg G.; Pilippone, Salvatore; Martin, C. R.; Sperlich, Andreas; Deibel, Carsten; Dyakonov, Vladimir

2010-01-01T23:59:59.000Z

473

Spin signatures of photogenerated radical anions in polymer-[70]fullerene bulk-heterojunctions : high-frequency pulsed EPR spectroscopy.  

SciTech Connect (OSTI)

Charged polarons in thin films of polymer-fullerene composites are investigated by light-induced electron paramagnetic resonance (EPR) at 9.5 GHz (X-band) and 130 GHz (D-band). The materials studied were poly(3-hexylthiophene) (PHT), [6,6]-phenyl-C61-butyric acid methyl ester (C{sub 60}-PCBM), and two different soluble C{sub 70}-derivates: C{sub 70}-PCBM and diphenylmethano[70]fullerene oligoether (C{sub 70}-DPM-OE). The first experimental identification of the negative polaron localized on the C{sub 70}-cage in polymer-fullerene bulk heterojunctions has been obtained. When recorded at conventional X-band EPR, this signal is overlapping with the signal of the positive polaron, which does not allow for its direct experimental identification. Owing to the superior spectral resolution of the high frequency D-band EPR, we were able to separate light-induced signals from P{sup +} and P{sup -} in PHT-C{sub 70} bulk heterojunctions. Comparing signals from C{sub 70}-derivatives with different side-chains, we have obtained experimental proof that the polaron is localized on the cage of the C{sub 70} molecule.

Poluektov, O. G.; Filippone, S.; Martin, N.; Sperlich, A.; Deibel, C.; Dyakonov, V. (Chemical Sciences and Engineering Division); (Univ. Complutense de Madrid); (Univ. of Wurzburg)

2010-04-14T23:59:59.000Z

474

Effect of resonance in external radio-frequency circuit on very high frequency plasma discharge  

SciTech Connect (OSTI)

A fully electromagnetic plasma model for an asymmetric capacitively coupled plasma discharge is used to understand the interaction between the external radio-frequency (rf) distributed circuit and the plasma. The plasma is excited using a 150 MHz rf source connected to the top electrode, the bottom electrode is connected to a shorted transmission line, and the electrodes are separated from the chamber walls through dielectric rings. Under typical conditions, the electron density peaks in the center of the plasma chamber due to the standing electromagnetic wave and the rf current from the top electrode primarily returns through the bottom electrode. When the electrical length of the bottom transmission line is adjusted such that it presents a large (open-circuit) impedance at the plasma chamber interface, the rf return current shifts from the bottom electrode to the chamber wall. As a consequence, the peak in electron density also moves from the center of the chamber toward its outer periphery.

Rauf, Shahid; Chen Zhigang; Collins, Ken [Applied Materials, Inc., 974 E. Arques Avenue, M/S 81517 Sunnyvale, California 94085 (United States)

2010-05-15T23:59:59.000Z

475

High-frequency conductivity of type-I superlattices  

Science Journals Connector (OSTI)

By using a method which employs a kinetic description and linear-response theory, we calculated the conductivity of electron-ion many-layer system (type-I superlattices) in the high-frequency and long-wavelength limits. Here electromagnetic radiation is taken to be a homogeneous, oscillating electric field. Our calculation takes into account all contributions in lowest order of the plasma parameter rs. Expressions for frequency-dependent scattering time and effective mass have been numerically obtained. Asymptotic limits for small and large frequencies are analytically derived.

Narkis Tzoar and Chao Zhang

1985-07-15T23:59:59.000Z

476

Low-frequency oscillations of forced barotropic flow  

SciTech Connect (OSTI)

Jin and Ghil demonstrate that for topographically resonant flow, low-frequency finite-amplitude oscillations may arise from wave -- wave interactions and topographic form drag. Their model is extended to include a zonally asymmetric vorticity source, which is shown to interact with the perturbation field to produce zonally rectified wave fluxes that dramatically alter the Hopf bifurcation from stationary solutions to low-frequency oscillations. The frequency, intensity, and general character of these oscillations are shown to depend crucially upon the phasing and relative strength of the forcings.

Nathan, T.R.; Barcilon, A. (Univ. of California, Davis, CA (United States) The Florida State Univ., Tallahassee, FL (United States))

1994-02-01T23:59:59.000Z

477

High-power radio-frequency attenuation device  

DOE Patents [OSTI]

A resistor device for attenuating radio frequency power includes a radio frequency conductor connected to a series of fins formed of high relative magnetic permeability material. The fins are dimensional to accommodate the skin depth of the current conduction therethrough, as well as an inner heat conducting portion where current does not travel. Thermal connections for air or water cooling are provided for the inner heat conducting portions of each fin. Also disclosed is a resistor device to selectively alternate unwanted radio frequency energy in a resonant cavity.

Kerns, Q.A.; Miller, H.W.

1981-12-30T23:59:59.000Z

478

Effects of radio frequency bias frequency and radio frequency bias pulsing on SiO{sub 2} feature etching in inductively coupled fluorocarbon plasmas  

SciTech Connect (OSTI)

The effect of radio frequency (rf) bias frequency on SiO{sub 2} feature etching using inductively coupled fluorocarbon plasmas is investigated. It is found that the rf bias frequency can have an important effect on SiO{sub 2} feature etch rate, microtrenching phenomena, and SiO{sub 2}-to-photoresist etch selectivity. In addition, the effect of rf bias pulsing on inductively coupled fluorocarbon plasma SiO{sub 2} etching has been studied and a model that describes the data well is presented. The model assumes that fluorocarbon deposition occurs while the rf bias is off, fluorocarbon etching occurs during the first part of time that the bias is on, and substrate etching occurs once the fluorocarbon material has been removed from the substrate. (c) 2000 American Vacuum Society.

Schaepkens, M. [Physics Department, University at Albany, Albany, New York 12222 (United States)] [Physics Department, University at Albany, Albany, New York 12222 (United States); Oehrlein, G. S. [Physics Department, University at Albany, Albany, New York 12222 (United States)] [Physics Department, University at Albany, Albany, New York 12222 (United States); Cook, J. M. [Lam Research Corporation, Fremont, California 94538-6470 (United States)] [Lam Research Corporation, Fremont, California 94538-6470 (United States)

2000-03-01T23:59:59.000Z

479

Mobile and Ubiquitous Computing RFID Applications  

E-Print Network [OSTI]

for air traffic management · Employs the secondary surveillance radar · Air traffic management uses Mode 3 fees · Battery powered device on the vehicle · Interrogator installed at the toll portal · Credit stored in the tag and fees deducted at every passage #12;Car immobilizers · Battery operated · Usually

Roussos, George

480

Mobile and Ubiquitous Computing! RFID Applications!  

E-Print Network [OSTI]

for air traffic management! · Employs the secondary surveillance radar! · Air traffic management uses Mode or entry portals! · Same principles as ticketing! #12;Car immobilizers! · Battery operated! · Usually! · External tag (ear, legs)! · Passive tags require no battery! · Used to track animals! · In some cases

Roussos, George

Note: This page contains sample records for the topic "frequency identification rfid" 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

Frequency effects on the production of reactive oxygen species in atmospheric radio frequency helium-oxygen discharges  

SciTech Connect (OSTI)

Several experimental and computational studies have shown that increasing frequency can effectively enhance the discharge stability in atmospheric radio-frequency (rf) discharges, but the frequency effects on the reactivity of rf discharges, represented by the densities of reactive oxygen species (ROS), are still far from fully understood. In this paper, a one-dimensional fluid model with 17 species and 65 reactions taken into account is used to explore the influences of the driving frequency on the production and destruction of ROS in atmospheric rf helium-oxygen discharges. From the computational results, with an increase in the frequency the densities of ROS decrease always at a constant power density, however, in the relatively higher frequency discharges the densities of ROS can be effectively improved by increasing the input power density with an expanded oxygen admixture range, while the discharges operate in the {alpha} mode, and the numerical data also show the optimal oxygen admixture for ground state atomic oxygen, at which the peak atomic oxygen density can be obtained, increases with the driving frequency.

Zhang, Yuantao T.; He Jin [Shandong Provincial Key Lab of UHV Technology and Gas Discharge Physics, School of Electrical Engineering, Shandong University, Jinan, Shandong Province 250061 (China)

2013-01-15T23:59:59.000Z

482

Definition: Frequency-Domain Electromagnetics Survey | Open Energy  

Open Energy Info (EERE)

Frequency-Domain Electromagnetics Survey Frequency-Domain Electromagnetics Survey Jump to: navigation, search Dictionary.png Frequency-Domain Electromagnetics Survey Frequency-domain electromagnetic techniques are continuous wave field methods which enable the mapping of the electrical conductivity of the subsurface through electromagnetic induction.[1] View on Wikipedia Wikipedia Definition Electromagnetic induction is the production of a potential difference (voltage) across a conductor when it is exposed to a varying magnetic field. Michael Faraday is generally credited with the discovery of induction in 1831 though it may have been anticipated by the work of Francesco Zantedeschi in 1829. Around 1830 to 1832, Joseph Henry made a similar discovery, but did not publish his findings until later. Faraday's

483

Gravitational Wave Detection with High Frequency Phonon Trapping Acoustic Cavities  

E-Print Network [OSTI]

There are a number of theoretical predictions for astrophysical and cosmological objects, which emit high frequency ($10^6-10^9$~Hz) Gravitation Waves (GW) or contribute somehow to the stochastic high frequency GW background. Here we propose a new sensitive detector in this frequency band, which is based on existing cryogenic ultra-high quality factor quartz Bulk Acoustic Wave cavity technology, coupled to near-quantum-limited SQUID amplifiers at $20$~mK. We show that spectral strain sensitivities reaching $10^{-22}$ per $\\sqrt{\\text{Hz}}$ per mode is possible, which in principle can cover the frequency range with multiple ($>100$) modes with quality factors varying between $10^6-10^{10}$ allowing wide bandwidth detection. Due to its compactness and well established manufacturing process, the system is easily scalable into arrays and distributed networks that can also impact the overall sensitivity and introduce coincidence analysis to ensure no false detections.

Goryachev, Maxim

2014-01-01T23:59:59.000Z

484

An artificial neural network for estimating haplotype frequencies  

Science Journals Connector (OSTI)

The problem of estimating haplotype frequencies from population data has been considered by numerous investigators, resulting in a wide variety of possible algorithmic and statistical solutions. We propose a rela...

Kevin C Cartier; Daniel Baechle

2005-12-01T23:59:59.000Z

485

A frequency converter for a propelling electric motor  

Science Journals Connector (OSTI)

A description and main technical characteristics of a frequency converter (FC) designed to supply power to a two-winding asynchronous propelling motor based on a three-level inverter with an output filter that...

G. M. Mustafa; S. V. Volkov; A. M. Ershov; Yu. M. Sennov…

2014-01-01T23:59:59.000Z

486

Improved Water and Nutrient Management Through HighFrequency Irrigation  

E-Print Network [OSTI]

High frequency irrigation implies the uniform, frequent application of water to crops. The fequency may range from several irrigations per week to daily irrigation to even several irrigations per day in greenhouse and nursery settings. Most...

Howell, T. A.; Brown, K. W.; Newton, R. J.; Redden, D. L.; McFarland, M. J.

487

Dynamic frequency tuning of electric and magnetic metamaterial response  

DOE Patents [OSTI]

A geometrically modifiable resonator is comprised of a resonator disposed on a substrate, and a means for geometrically modifying the resonator. The geometrically modifiable resonator can achieve active optical and/or electronic control of the frequency response in metamaterials and/or frequency selective surfaces, potentially with sub-picosecond response times. Additionally, the methods taught here can be applied to discrete geometrically modifiable circuit components such as inductors and capacitors. Principally, controlled conductivity regions, using either reversible photodoping or voltage induced depletion activation, are used to modify the geometries of circuit components, thus allowing frequency tuning of resonators without otherwise affecting the bulk substrate electrical properties. The concept is valid over any frequency range in which metamaterials are designed to operate.

O'Hara, John F; Averitt, Richard; Padilla, Willie; Chen, Hou-Tong

2014-09-16T23:59:59.000Z

488

New design of a radio-frequency plasma torch  

Science Journals Connector (OSTI)

A numerical model has been developed for predicting the two-dimensional flow and temperature fields in a radio-frequency (rf) plasma torch. The method employed here is based ... rates without interfering with the...

Toyonobu Yoshida; Kunihiko Nakagawa…

1981-03-01T23:59:59.000Z

489

Radio-frequency-excited carbon dioxide metal waveguide laser  

Science Journals Connector (OSTI)

A new type of waveguide laser is described in which a single-surface concave metal waveguide also doubles as the grounded electrode in a radio-frequency-excited gaseous discharge. The...

Grossman, Jonathan G; Casperson, Lee W; Stafsudd, Oscar M

1983-01-01T23:59:59.000Z

490

High-frequency nuclear transformation of Chlamydomonas reinhardtii.  

Science Journals Connector (OSTI)

High-frequency nuclear transformation of Chlamydomonas...combination of an efficient nuclear transformation system with...studies of chloroplast-nuclear interactions. I am indebted...Agriculture-Department of Energy-National Science Foundation...

K L Kindle

1990-01-01T23:59:59.000Z

491

Volume-Duration-Frequencies for Ungaged Catchments in Texas  

E-Print Network [OSTI]

This report summarizes results from studies to determine relationships among the volume, duration and frequencies of floods in ungaged catchments in Texas. Methodologies were adopted for determining flood volumes at unregulated, non-urban catchments...

Devulapalli, Ravi S.; Valdes, Juan B.

492

Frequency shift measurement in shock-compressed materials  

DOE Patents [OSTI]

A method is disclosed for determining molecular vibrational frequencies in shock-compressed transparent materials. A single laser beam pulse is directed into a sample material while the material is shock-compressed from a direction opposite that of the incident laser beam. A Stokes beam produced by stimulated Raman scattering is emitted back along the path of the incident laser beam, that is, in the opposite direction to that of the incident laser beam. The Stokes beam is separated from the incident beam and its frequency measured. The difference in frequency between the Stokes beam and the incident beam is representative of the characteristic frequency of the Raman active mode of the sample. Both the incident beam and the Stokes beam pass perpendicularly through the stock front advancing through the sample, thereby minimizing adverse effects of refraction.

Moore, D.S.; Schmidt, S.C.

1984-02-21T23:59:59.000Z

493

4.2 Selection Changes in gene frequency  

E-Print Network [OSTI]

the best-known example of this situation in man concerns the phenomenon of sickle-cell anaemia. The maintenance of high frequencies for both the sickle cell gene and its normal allele in certain East African

Hsu, Sze-Bi

494

Theoretical and computational design of terahertz frequency quantum cascade lasers  

Science Journals Connector (OSTI)

Modeling of terahertz frequency quantum cascade lasers has become increasingly complex theoretically resulting in burdensome computational requirements. While more comprehensive treatment permits further insight and increased accuracy the modeling of ...

Adam T. Cooney / A.M. Sarangan

2009-01-01T23:59:59.000Z

495

FREQUENCY DEPENDENT ELASTIC AND ANELASTIC PROPERTIES OF CLASTIC ROCKS  

E-Print Network [OSTI]

was sequestered in a shallow saline aquifer where the vertical migration of the CO2 is controlled by shale changes in the compressibility of rocks. A large difference between the seismic and ultrasonic frequencies

496

Power conversion architecture for grid interface at high switching frequency  

E-Print Network [OSTI]

This paper presents a new power conversion architecture for single-phase grid interface. The proposed architecture is suitable for realizing miniaturized ac-dc converters operating at high frequencies (HF, above 3 MHz) and ...

Lim, Seungbum

497

Gravitational Wave Detection with High Frequency Phonon Trapping Acoustic Cavities  

E-Print Network [OSTI]

There are a number of theoretical predictions for astrophysical and cosmological objects, which emit high frequency ($10^6-10^9$~Hz) Gravitation Waves (GW) or contribute somehow to the stochastic high frequency GW background. Here we propose a new sensitive detector in this frequency band, which is based on existing cryogenic ultra-high quality factor quartz Bulk Acoustic Wave cavity technology, coupled to near-quantum-limited SQUID amplifiers at $20$~mK. We show that spectral strain sensitivities reaching $10^{-22}$ per $\\sqrt{\\text{Hz}}$ per mode is possible, which in principle can cover the frequency range with multiple ($>100$) modes with quality factors varying between $10^6-10^{10}$ allowing wide bandwidth detection. Due to its compactness and well established manufacturing process, the system is easily scalable into arrays and distributed networks that can also impact the overall sensitivity and introduce coincidence analysis to ensure no false detections.

Maxim Goryachev; Michael E. Tobar

2014-10-09T23:59:59.000Z

498

Variable Frequency Drives: Energy Savings and Impact on Motor Performance  

E-Print Network [OSTI]

Variable frequency drives (VFDs) have found widespread application in recent years. VFDs are valued for their potential to save energy and improve processes. Reliability has improved significantly, but there are still pitfalls to be addressed...

Petro, D.

499

Conservation Theory Process Control Using Variable Frequency Drives  

E-Print Network [OSTI]

The purpose of this paper is to outline some of the economic considerations of variable frequency control and to point out possible applications in order to create greater awareness of the options available to the engineer as he develops new...

Myers, N. S.

1980-01-01T23:59:59.000Z

500

Soft switched high frequency ac-link converter  

E-Print Network [OSTI]

Variable frequency drives typically have employed dc voltage or current links for power distribution between the input and output converters and as a means to temporarily store energy. The dc link based power conversion systems have several inherent...

Balakrishnan, Anand Kumar

2009-05-15T23:59:59.000Z