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


1

Seven Traffic Signals in Two Minutes  

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

Topeka, Kansas has activated the first of three key traffic corridors to receive a "green light tunnel," a real-time adaptive traffic signal system that synchronizes signals to create a series of...

2

Seven Traffic Signals in Two Minutes  

SciTech Connect

Topeka, KS has activated the first of three key traffic corridors to receive a "green light tunnel," a real-time adaptive traffic signal system that synchronizes signals to create a series of green lights for motorists. The result is fewer stops, less travel time and -- most importantly -- a lot of saved gasoline.

None

2011-01-01T23:59:59.000Z

3

Road Traffic Signalling  

Science Journals Connector (OSTI)

... of the speakers suggested that the amber light should be regarded as the signal for pedestrians. Much was said in favour of a gyratory system being adopted in Oxford Circus. ... times of the day, although the green lights are showing, by the crowds of pedestrians in Oxford Street. A model for the automatic control of signals at crossings was ...

1932-01-30T23:59:59.000Z

4

Evaluation of traffic signal controller transition methods  

E-Print Network (OSTI)

A coordinated signal system achieves the best traffic progression when the signal plans are optimized at the correct offsets and intervals. When traffic conditions change and a transition to a new timing plan is warranted, it is important to reach...

Hamilton, Curtis Lloyd

2000-01-01T23:59:59.000Z

5

Performance Analysis of Isolated Intersection Traffic Signals  

E-Print Network (OSTI)

This dissertation analyzes two unsolved problems to fulfill the gap in the literature: (1). What is the vehicle delay and intersection capacity considering left-turn traffic at a pre-timed signal? (2). What are the mean and variance of delay...

Yin, Kai

2013-08-01T23:59:59.000Z

6

LED traffic signals: A market transformation opportunity assessment  

SciTech Connect

This report examines the feasibility and appropriateness of market intervention strategies to increase the penetration of LED traffic signals, which offer large energy savings and other benefits relative to existing incandescent traffic signals. It presents the state of the technology and some of the technical challenges that remain. Prepared for the Consortium for Energy Efficiency.

Suozzo, M.

1998-12-31T23:59:59.000Z

7

Ohio Town Installing 'Green' Traffic Signals | Department of Energy  

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

Ohio Town Installing 'Green' Traffic Signals Ohio Town Installing 'Green' Traffic Signals Ohio Town Installing 'Green' Traffic Signals January 20, 2010 - 3:57pm Addthis Elyria, Ohio, is getting a little greener. Mayor William M. Grace recently confirmed that staff will replace traditional traffic lights with 288 energy-efficient LEDs (light-emitting diodes), saving the town energy and money. "We are definitely doing this, we are going to switch out all the traffic lights in town," Elyria's mayor says. Replacing light bulbs with LEDs will mean substantial savings. That's because these small, solid bulbs can last up to 10 times longer than traditional lights and require considerably less energy. "This gives us the opportunity to change, we expect to realize considerable savings," the mayor says.

8

City of Phildelphia: Light emitting diodes for traffic signal displays  

SciTech Connect

This project investigated the feasibility of using light emitting diodes (LEDs) for red traffic signals in a demonstration program at 27 signalized intersections in the City of Philadelphia. LED traffic signals have the potential to achieve significant savings over standard incandescent signals in terms of energy usage and costs, signal relamping costs, signal system maintenance costs, tort liability, and environmental impact. Based on successful experience with the demonstration program, the City of Philadelphia is currently developing funding for the conversion of all existing red incandescent traffic signals at approximately 2,700 intersections to LED signals. This program is expected to cost approximately $4.0 million and save about $850,000 annually in energy costs. During late 1993 and early 1994, 212 red LED traffic signals (134 8-inch signals and 78 12-inch signals) were installed at 27 intersections in Philadelphia. The first group of 93 signals were installed at 13 prototypical intersections throughout the City. The remaining group of signals were installed on a contiguous route in West Philadelphia consisting of standard incandescent signals and LED signals interspersed in a random pattern.

NONE

1995-12-01T23:59:59.000Z

9

Strategies for improving traffic operations at oversaturated signalized diamond interchanges  

E-Print Network (OSTI)

street improvement goals should include improved traffic flow along with reductions in congestion, air pollution, and energy use, without major new construction. Super-street arterials, which are multi-lane arterials with limited access and a limited...STRATEGIES FOR IMPROVING TRAFFIC OPERATIONS AT OVERSATURATED SIGNALIZED DIAMOND INTERCHANGES A Thesis by GEORGE CURTIS HERRICK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

Herrick, George Curtis

1992-01-01T23:59:59.000Z

10

LED traffic lights: New technology signals major energy savings  

SciTech Connect

Using light-emitting diode technology to replace incandescent lamps in traffic signals promises energy savings upwards of 60 percent for each of the estimated quarter of a million controlled intersections in the United States. LED units use only 9 to 25 watts instead of the 67 to 150 watts used by each incandescent lamp. Though their first cost is relatively high, energy savings result in paybacks of 1 to 5 years. LED retrofit kits are available for red signal disks and arrows, and installations in several states have proven successful, although minor improvements are addressing concerns about varying light output and controller circuitry. Retrofitting green lamps is not yet feasible, because color standards of the Institute of Traffic Engineers cannot be met with existing LED technology. Yellow lamps have such low duty factors (they`re on only 3 percent of the time) that retrofitting with LED signals is not cost-effective. LEDs last much longer than incandescents, allowing municipalities to not only reduce their electricity bills, but to save on maintenance costs as well. As further incentive, some utilities are beginning to implement rebate programs for LED traffic signal retrofits. Full approval of LED units is still awaited from the Institute of Traffic Engineers (ITE), the standard-setting body for traffic safety devices. Local and state governments ultimately decide what specifications to require for traffic lights, and the growing body of successful field experience with LEDs appears to be raising their comfort level with the technology. The California Department of Transportation is developing an LED traffic light specification, and two California utilities, Southern California Edison and Pacific Gas and Electric, have provided rebates for some pilot installations.

Houghton, D.

1994-12-31T23:59:59.000Z

11

An investigation into the use of highway traffic signals at highway-railroad grade crossings  

E-Print Network (OSTI)

of highway traffic signals at railhighway crossings offer any safety benefits over the use of conventional active traffic control devices. Fatal accident records obtained from the Fatal Accident Reporting System (FARS) were used in this analysis. The driver...

Frieslaar, Andre Henry

2012-06-07T23:59:59.000Z

12

Collaborative Sensing in a Retail Store Using Synchronous Distributed Jam Signalling  

E-Print Network (OSTI)

Collaborative Sensing in a Retail Store Using Synchronous Distributed Jam Signalling Albert Krohn Abstract. The retail store environment is a challenging application area for Pervasive Computing's retailer, that indicate that supporting product monitoring tasks with novel pervasive technology is useful

Beigl, Michael

13

Robust acoustic signal detection and synchronization in a time varying ocean environment  

E-Print Network (OSTI)

Signal detection and synchronization in the time varying ocean environment is a difficult endeavor. The current common methods include using a linear frequency modulated chirped pulse or maximal length sequence as a detection ...

Gieleghem, Ryan Thomas

2012-01-01T23:59:59.000Z

14

Development and evaluation of an arterial adaptive traffic signal control system using reinforcement learning  

E-Print Network (OSTI)

perspective. This comparison shows both the connections between them and the benefits of using reinforcement learning. A Neural-Fuzzy Actor-Critic Reinforcement Learning (NFACRL) method is then introduced for traffic signal control. NFACRL integrates fuzzy...

Xie, Yuanchang

2009-05-15T23:59:59.000Z

15

Bicycle-Specific Traffic Signals: Results from a State-of-the-Practice Review Paper # 13-0536  

E-Print Network (OSTI)

Bicycle-Specific Traffic Signals: Results from a State-of-the-Practice Review Paper # 13-0536 Sam R with known installations of bicycle-specific traffic signals and a review of available engineering guidance); the CROW design manual for bicycle traffic; and the Canadian, U.S. and Californian manuals on uniform

16

Bicycle-Specific Traffic Signals: Results from a State-of-the-Practice Review1 Paper # 13-05363  

E-Print Network (OSTI)

Bicycle-Specific Traffic Signals: Results from a State-of-the-Practice Review1 2 Paper # 13-05363 4 with known installations of2 bicycle-specific traffic signals and a review of available engineering guidance Canada (TAC), the CROW design manual for bicycle traffic, and the Canadian, U.S. and Californian9 manuals

Bertini, Robert L.

17

Arterial-street signal timing strategies to provide additional through-traffic capacity during freeway incident conditions  

E-Print Network (OSTI)

the total number of stops for coordinated multiple phase traffic signal systems (Chang and Messer 1991, "Traffic Light" 1990). Modifications were made to the Akcelik and Miller formula to account for the platoon arrival patterns that result from arterial-street... the total number of stops for coordinated multiple phase traffic signal systems (Chang and Messer 1991, "Traffic Light" 1990). Modifications were made to the Akcelik and Miller formula to account for the platoon arrival patterns that result from arterial-street...

Dale, James Joseph

2012-06-07T23:59:59.000Z

18

Chapter 8 - Signal Flow. The Keys to Directing Audio Traffic  

Science Journals Connector (OSTI)

A key component of audio engineering is to fully understand the analog model of signal flow, that is, how sound travels from the beginning to the end of its audio path. Much of audio engineering is troubleshooting different issues that occur during music production. Understanding signal flow can help you quickly pinpoint and solve a problem in order to keep a session running smoothly. When recording, the signal flow path starts where you plug in the microphone and ends at the speakers, or two-track recorder. Once this concept is understood, you will be able to hook up most gear, understand a patchbay, and troubleshoot yourself out of just about any mess! Knowing the analog model of signal flow will translate to almost any audio situation. Don't get frustrated if you don't fully understand the concept at first. It usually takes some experience and practical application to totally grasp signal flow. Keywords: A/D Converters and Audio, Analog Model of Signal Flow, Applying Signal Flow, Eight-track, Four-track, Gain, Interfaces, Laptop, Laptop with Audio Interface, Setting Levels, Signal Flow, Structure, Units

Timothy A. Dittmar

2012-01-01T23:59:59.000Z

19

OPERATIONAL GUIDANCE FOR BICYCLE-SPECIFIC TRAFFIC SIGNALS IN THE UNITED STATES: A REVIEW  

E-Print Network (OSTI)

OPERATIONAL GUIDANCE FOR BICYCLE-SPECIFIC TRAFFIC SIGNALS IN THE UNITED STATES: A REVIEW Interim ........................................................................................................... 2 2.1.1 Guide for the Development of Bicycle Facilities (AASHTO, 1999).....................................................................................3 2.1.3 Guide for the Development of Bicycle Facilities (AASHTO, 2012

Bertini, Robert L.

20

Florida County Seeks to Reduce Emissions and Improve Traffic | Department  

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

Florida County Seeks to Reduce Emissions and Improve Traffic Florida County Seeks to Reduce Emissions and Improve Traffic Florida County Seeks to Reduce Emissions and Improve Traffic September 27, 2010 - 10:30am Addthis A worker synchronizes a traffic light on State Road A1A in St. Augustine, FL. | Energy Department Photo | A worker synchronizes a traffic light on State Road A1A in St. Augustine, FL. | Energy Department Photo | Lindsay Gsell What does this project do? St. Johns County, Florida uses Recovery Act funding to resynchronize 23 traffic signals at five major segments of roadway. The new light patterns will save nearly 729,000 gallons of gas and reduce CO2 emissions by more than 2,200 metric tons. The intersection of State Road A1A and State Road 312 in St. Augustine is messy at 5 o'clock. On one side, tourists returning from Florida's

Note: This page contains sample records for the topic "traffic signal synchronization" 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

A model-based method for computation of correlation dimension, Lyapunov exponents and synchronization from depth-EEG signals  

Science Journals Connector (OSTI)

In order to predict epileptic seizures many precursory features, extracted from the EEG signals, have been introduced. Before checking out the performance of features in detection of pre-seizure state, it is required to see whether these features are ... Keywords: Accurate feature extraction, Correlation dimension, Depth-EEG generator, Largest Lyapunov exponent, Seizure, Synchronization

F. Shayegh; S. Sadri; R. Amirfattahi; K. Ansari-Asl

2014-01-01T23:59:59.000Z

22

Why Doesn't That Traffic Signal Ever Turn Green? An evalua)on of roadway markings for cyclists  

E-Print Network (OSTI)

Why Doesn't That Traffic Signal Ever Turn Green? An evalua)on of roadway #12; S. Bussey ­ 11/08/2013 Where would you wait if driving a car Cases Case 3: "Green Backed" Stencil Case 2: Stencil and Sign Case 1: Stencil

Bertini, Robert L.

23

Preemption strategy for traffic signals at intersections near highway-railroad grade crossings  

E-Print Network (OSTI)

delay are given less consideration or ignored completely. Consequently, state-of-the-practice strategies may cause serious pedestrian safety and efficiency problems at IHRGCs. Therefore, there is a definite need for research on how to improve traffic...

Cho, Hanseon

2004-09-30T23:59:59.000Z

24

E-Print Network 3.0 - actuated traffic signal controllers Sample...  

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

4 American Institute of Aeronautics and Astronautics Resonance-Enhanced High-Frequency Micro-Actuators with Summary: the piezoelectric actuators' control signal and the...

25

Getting Traffic Lights Talking to Improve Topeka's Traffic Tunnel |  

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

Getting Traffic Lights Talking to Improve Topeka's Traffic Tunnel Getting Traffic Lights Talking to Improve Topeka's Traffic Tunnel Getting Traffic Lights Talking to Improve Topeka's Traffic Tunnel October 8, 2010 - 11:16am Addthis Topeka is using Recovery Act funding to resynchronize 22 traffic lights. | Photo by Linda Voss Topeka is using Recovery Act funding to resynchronize 22 traffic lights. | Photo by Linda Voss Lindsay Gsell The five-lane 21st street corridor in Topeka is a hub for restaurants, shopping and entertainment. "This is where everyone in Topeka goes to shop," says Topeka resident Linda Voss. In addition to food and fun, the one-mile corridor is home to seven traffic lights-and for drivers, a potential traffic stop every 754 feet, or a little more than two football fields. "The traffic signals are a challenge to time in this area," says Voss,

26

A method to synchronize signals from multiple patient monitoring devices through a single input channel for inclusion in list-mode acquisitions  

SciTech Connect

Purpose: This technical note documents a method that the authors developed for combining a signal to synchronize a patient-monitoring device with a second physiological signal for inclusion into list-mode acquisition. Our specific application requires synchronizing an external patient motion-tracking system with a medical imaging system by multiplexing the tracking input with the ECG input. The authors believe that their methodology can be adapted for use in a variety of medical imaging modalities including single photon emission computed tomography (SPECT) and positron emission tomography (PET). Methods: The authors insert a unique pulse sequence into a single physiological input channel. This sequence is then recorded in the list-mode acquisition along with the R-wave pulse used for ECG gating. The specific form of our pulse sequence allows for recognition of the time point being synchronized even when portions of the pulse sequence are lost due to collisions with R-wave pulses. This was achieved by altering our software used in binning the list-mode data to recognize even a portion of our pulse sequence. Limitations on heart rates at which our pulse sequence could be reliably detected were investigated by simulating the mixing of the two signals as a function of heart rate and time point during the cardiac cycle at which our pulse sequence is mixed with the cardiac signal. Results: The authors have successfully achieved accurate temporal synchronization of our motion-tracking system with acquisition of SPECT projections used in 17 recent clinical research cases. In our simulation analysis the authors determined that synchronization to enable compensation for body and respiratory motion could be achieved for heart rates up to 125 beats-per-minute (bpm). Conclusions: Synchronization of list-mode acquisition with external patient monitoring devices such as those employed in motion-tracking can reliably be achieved using a simple method that can be implemented using minimal external hardware and software modification through a single input channel, while still recording cardiac gating signals.

O’Connor, J. Michael; Pretorius, P. Hendrik; Johnson, Karen; King, Michael A., E-mail: Michael.King@umassmed.edu [Department of Radiology, University of Massachusetts Medical School, Worcester, Massachusetts 01655 (United States)

2013-12-15T23:59:59.000Z

27

Queue-length synchronization in communication networks  

Science Journals Connector (OSTI)

We study the synchronization in the context of network traffic on a 2-d communication network with local clustering and geographic separations. The network consists of nodes and randomly distributed hubs where the top five hubs ranked according to their coefficient of betweenness centrality (CBC) are connected by random assortative and gradient mechanisms. For multiple message traffic, messages can trap at the high CBC hubs, and congestion can build up on the network with long queues at the congested hubs. The queue lengths are seen to synchronize in the congested phase. Both complete and phase synchronization are seen, between pairs of hubs. In the decongested phase, the pairs start clearing and synchronization is lost. A cascading master-slave relation is seen between the hubs, with the slower hubs (which are slow to decongest) driving the faster ones. These are usually the hubs of high CBC. Similar results are seen for traffic of constant density. Total synchronization between the hubs of high CBC is also seen in the congested regime. Similar behavior is seen for traffic on a network constructed using the Waxman random topology generator. We also demonstrate the existence of phase synchronization in real internet traffic data.

Satyam Mukherjee and Neelima Gupte

2009-05-14T23:59:59.000Z

28

IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 51, NO. 8, AUGUST 2003 2177 Prediction of MPEG-Coded Video Source Traffic  

E-Print Network (OSTI)

bring forward additional circumstances in which source traffic prediction becomes critical. Efficient of Texas Advanced Technology Program under Grant 512-0025-2001, the U.S. Department of Energy under Grant is with the Department of Computer Engineering, Cairo Univer- sity, Giza, Egypt (e-mail: amiratiya@link.net). Digital

Abu-Mostafa, Yaser S.

29

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 30, 2010 - 10:19am Addthis Red. Yellow. Green. What LED traffic signals don't say: Made...

30

System and method for ultrafast optical signal detecting via a synchronously coupled anamorphic light pulse encoded laterally  

DOE Patents (OSTI)

In one general embodiment, a method for ultrafast optical signal detecting is provided. In operation, a first optical input signal is propagated through a first wave guiding layer of a waveguide. Additionally, a second optical input signal is propagated through a second wave guiding layer of the waveguide. Furthermore, an optical control signal is applied to a top of the waveguide, the optical control signal being oriented diagonally relative to the top of the waveguide such that the application is used to influence at least a portion of the first optical input signal propagating through the first wave guiding layer of the waveguide. In addition, the first and the second optical input signals output from the waveguide are combined. Further, the combined optical signals output from the waveguide are detected. In another general embodiment, a system for ultrafast optical signal recording is provided comprising a waveguide including a plurality of wave guiding layers, an optical control source positioned to propagate an optical control signal towards the waveguide in a diagonal orientation relative to a top of the waveguide, at least one optical input source positioned to input an optical input signal into at least a first and a second wave guiding layer of the waveguide, and a detector for detecting at least one interference pattern output from the waveguide, where at least one of the interference patterns results from a combination of the optical input signals input into the first and the second wave guiding layer. Furthermore, propagation of the optical control signal is used to influence at least a portion of the optical input signal propagating through the first wave guiding layer of the waveguide.

Heebner, John E. (Livermore, CA)

2010-08-03T23:59:59.000Z

31

Synchronized operation by field programmable gate array based signal controller for the Thomson scattering diagnostic system in KSTAR  

SciTech Connect

The Thomson scattering diagnostic system is successfully installed in the Korea Superconducting Tokamak Advanced Research (KSTAR) facility. We got the electron temperature and electron density data for the first time in 2011, 4th campaign using a field programmable gate array (FPGA) based signal control board. It operates as a signal generator, a detector, a controller, and a time measuring device. This board produces two configurable trigger pulses to operate Nd:YAG laser system and receives a laser beam detection signal from a photodiode detector. It allows a trigger pulse to be delivered to a time delay module to make a scattered signal measurement, measuring an asynchronous time value between the KSTAR timing board and the laser system injection signal. All functions are controlled by the embedded processor running on operating system within a single FPGA. It provides Ethernet communication interface and is configured with standard middleware to integrate with KSTAR. This controller has operated for two experimental campaigns including commissioning and performed the reconfiguration of logic designs to accommodate varying experimental situation without hardware rebuilding.

Lee, W. R.; Park, M. K.; Lee, J. H. [National Fusion Research Institute, Gwahangno 113, Daejeon 305-333 (Korea, Republic of); Kim, H. S. [Chungnam National University, Daehak-ro 99, Daejeon 305-764 (Korea, Republic of); Kim, K. H. [Seed Core Co., Ltd., Daehak-ro 99, Daejeon 305-764 (Korea, Republic of)

2012-09-15T23:59:59.000Z

32

Traffic culture human factors & traffic safety  

E-Print Network (OSTI)

Traffic culture human factors & traffic safety by Dr.-Ing. Haraldur Sigþórsson and Dr.-Ing. Stefán) Culture, traffic culture and traffic safety culture are interrelated Culture www.hr.is 3 Traffic Culture Traffic safety culture What is culture? · A culture is a collection of behavioral patterns that are found

Karlsson, Brynjar

33

A simulation model for urban traffic noise  

Science Journals Connector (OSTI)

Urban traffic noise is studied by a simulation model whose main features are the following: effects of traffic lights speed limit possibility of vehicles overtaking and driving styles. In the model there is a basic assumption about driver’s behavior (‘‘follow the leader’’) considering the case of straight and level road with two lanes for every carriageway and two traffic lights. Three driving styles are considered: A (‘‘quiet driver’’): change of gear at 60% of engine speed corresponding to maximum torque B (‘‘normal driver’’): at 80% C (‘‘fast driver’’): at 100%. The behavior rules provide for: keeping of safety distance overtaking if there are vehicles at different speeds deceleration and stop at traffic lights with red synchronization of two traffic lights if requested. From the kinematic side the model was validated by comparison with acceleration distribution of a real vehicle’s flow while the acoustic one was by the comparison with noise levels measured along urban streets. The simulation model lets one take into account the following factors concerning the traffic noise emission: main noise sources of vehicle (tires engine intake and exhaust system) traffic flow and maximum speed allowed traffic mix as regards different driving styles.

A. Di Giulio; F. Mancosu; C. Nucci; L. Zocchi

1999-01-01T23:59:59.000Z

34

VEHICLE EMISSIONS AND TRAFFIC MEASURES: EXPLORATORY ANALYSIS OF FIELD  

E-Print Network (OSTI)

VEHICLE EMISSIONS AND TRAFFIC MEASURES: EXPLORATORY ANALYSIS OF FIELD OBSERVATIONS AT SIGNALIZED between vehicle emissions and traffic control measures is an important step toward reducing the potential roadway design and traffic control, have the ability to reduce vehicle emissions. However, current vehicle

Frey, H. Christopher

35

Synchronization System for Next Generation Light Sources  

SciTech Connect

An alternative synchronization technique – one that would allow explicit control of the pulse train including its repetition rate and delay is clearly desired. We propose such a scheme. Our method is based on optical interferometry and permits synchronization of the pulse trains generated by two independent mode-locked lasers. As the next generation x-ray sources will be driven by a clock signal derived from a mode-locked optical source, our technique will provide a way to synchronize x-ray probe with the optical pump pulses.

Zavriyev, Anton

2014-03-27T23:59:59.000Z

36

On chip synchronization for optical OPPM  

E-Print Network (OSTI)

the autocorrclation and spectrum of the output of a photodiode photodetector for Q-ary VVM and showed the necessity for nonlinear preprocessing to obtain a synchronizable signal which can then be locked on to by a phase-locked loop; in addition, they studied the ef...Fect of imperfect synchronization on system performance. Slot synchronization for avalanche photodiode (APD) receivers was considered by Davidson and Sun [7]. Synchronization was achieved by using a transition detector followed by a pulse shaper to provide input...

Hayek, Khalil F.

2012-06-07T23:59:59.000Z

37

TRAFFIC LIGHT CONTROL IN AN AVENUE Ezio Marchi  

E-Print Network (OSTI)

. In this short paper we solve in general the problem of synchronization of lights in a street or avenue of havingTRAFFIC LIGHT CONTROL IN AN AVENUE By Ezio Marchi IMA Preprint Series # 2224 ( October 2008 ) INSTITUTE FOR MATHEMATICS AND ITS APPLICATIONS UNIVERSITY OF MINNESOTA 400 Lind Hall 207 Church Street S

38

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 29, 2010 - 10:00am Addthis LED traffic lights are assembled at Dialight’s factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. | Photo Courtesy of Dialight LED traffic lights are assembled at Dialight's factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. | Photo Courtesy of Dialight Lindsay Gsell LED traffic lights are assembled at Dialight's factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. Red. Yellow. Green. What LED traffic signals don't say: Made in USA.

39

Evaluation of teenage driver understanding of traffic control devices  

E-Print Network (OSTI)

. . Signals Continually Misunderstood Traffic Control Devices . . Before and After Results 52 54 55 55 57 . 60 . . 65 . 72 81 81 . 83 . 84 . . 85 . . 87 TABLE OF CONTENTS (Continued) CHAPTER Page V CONCLUSIONS AND RECOMMENDATIONS, , . . 88... Misunderstood from 1978 TTI Study 12 4 Traffic Control Devices Needing Improvements from 1981 TTI Study . . . . . . 13 5 Targeted Traffic Control Devices from 1990 TTI Study . . 6 Basic Shapes and Colors Included in the Final Survey . . . 7 Regulatory Signs...

Ford, Garry Lee

2012-06-07T23:59:59.000Z

40

Airborne Traffic Flow Data and Traffic Management  

E-Print Network (OSTI)

Position and Time Registration Vehicle detection Vehicle tracking Scaling Road mask Source: Hickman: Treiterer Source: Treiterer and Taylor (1966) #12;atlas University of Arizona / ATLAS VEHICLE DETECTION on spatial characteristics of traffic patterns · Goal: Improve efficiency of transportation system

Bertini, Robert L.

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Signal optimization at isolated intersections using pre-signals  

E-Print Network (OSTI)

INTRODUCTION Traffic at signalized intersections exhibits complex vehicle interactions, which tends to have a significant impact on traffic operations. Frustration at signalized intersections or ?stop light? as it is commonly called, often runs high... at signalized intersections in order to quantify the inefficiencies in signal operations. BACKGROUND Queue discharge plays an important role in signal operation. At the onset of green indication, the first few vehicles experience start up loss time due...

Palekar, Trishul Ajit

2006-10-30T23:59:59.000Z

42

Traffic Management Specialist  

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

The incumbent in this position will serve as a Traffic Management Specialist for BPAs Transmission Business Line (TBL) and oversee commercial transportation services for the movement of materials...

43

Traffic Safety Facts 2004  

National Nuclear Security Administration (NNSA)

information on highway traffic safety, which can be accessed by Internet users at web site www.nhtsa.dot.govpeoplencsa, includes the following annual NCSA fact sheets:...

44

Synchronization in complex networks  

SciTech Connect

Synchronization processes in populations of locally interacting elements are in the focus of intense research in physical, biological, chemical, technological and social systems. The many efforts devoted to understand synchronization phenomena in natural systems take now advantage of the recent theory of complex networks. In this review, we report the advances in the comprehension of synchronization phenomena when oscillating elements are constrained to interact in a complex network topology. We also overview the new emergent features coming out from the interplay between the structure and the function of the underlying pattern of connections. Extensive numerical work as well as analytical approaches to the problem are presented. Finally, we review several applications of synchronization in complex networks to different disciplines: biological systems and neuroscience, engineering and computer science, and economy and social sciences.

Arenas, A.; Diaz-Guilera, A.; Moreno, Y.; Zhou, C.; Kurths, J.

2007-12-12T23:59:59.000Z

45

Traffic of Molecular Motors  

E-Print Network (OSTI)

Molecular motors perform active movements along cytoskeletal filaments and drive the traffic of organelles and other cargo particles in cells. In contrast to the macroscopic traffic of cars, however, the traffic of molecular motors is characterized by a finite walking distance (or run length) after which a motor unbinds from the filament along which it moves. Unbound motors perform Brownian motion in the surrounding aqueous solution until they rebind to a filament. We use variants of driven lattice gas models to describe the interplay of their active movements, the unbound diffusion, and the binding/unbinding dynamics. If the motor concentration is large, motor-motor interactions become important and lead to a variety of cooperative traffic phenomena such as traffic jams on the filaments, boundary-induced phase transitions, and spontaneous symmetry breaking in systems with two species of motors. If the filament is surrounded by a large reservoir of motors, the jam length, i.e., the extension of the traffic jams is of the order of the walking distance. Much longer jams can be found in confined geometries such as tube-like compartments.

Stefan Klumpp; Melanie J. I. Müller; Reinhard Lipowsky

2005-12-06T23:59:59.000Z

46

Transforming Traffic Signals to Support Sustainability  

E-Print Network (OSTI)

apply them? What are the safety benefits? #12;Passive Pedestrian Detection · Vehicles aren't forced Transportation Plan, Metro · Climate Action Plan · City Transportation System Plan ­ Bicycle Master Plan at intersections · Designed to reduce vehicle delay Is this better? #12;Pedestrian/Bicycle Prioritization

Bertini, Robert L.

47

Steps towards the extraction of vehicular mobility patterns from 3g signaling data  

Science Journals Connector (OSTI)

The signaling traffic of a cellular network is rich of information related to the movement of devices across cell boundaries. Thus, passive monitoring of anonymized signaling traffic enables the observation of the devices' mobility patterns. This approach ...

Pierdomenico Fiadino; Danilo Valerio; Fabio Ricciato; Karin Anna Hummel

2012-03-01T23:59:59.000Z

48

Traffic air quality index  

Science Journals Connector (OSTI)

Abstract Vehicle emissions are responsible for a considerable share of urban air pollution concentrations. The traffic air quality index (TAQI) is proposed as a useful tool for evaluating air quality near roadways. The TAQI associates air quality with the equivalent emission from traffic sources and with street structure (roadway structure) as anthropogenic factors. The paper presents a method of determining the TAQI and defines the degrees of harmfulness of emitted pollution. It proposes a classification specifying a potential threat to human health based on the TAQI value and shows an example of calculating the TAQI value for real urban streets. It also considers the role that car traffic plays in creating a local UHI.

Zbigniew Bagie?ski

2015-01-01T23:59:59.000Z

49

Research and Road Traffic  

Science Journals Connector (OSTI)

... been advocated for Great Britain within my knowledge, deserve other than the fervent opposition of pedestrians as well as motorists. They can do nothing for safety?they do not discover ... relate the number of road fatalities in a place to the amount of traffic flow (pedestrian and other) there. It would establish at an early moment the machinery for measuring ...

MERVYN O'GORMAN

1934-09-01T23:59:59.000Z

50

Synchronization of parallel programs  

SciTech Connect

Modular and parallel programming languages and the development of distributed architectures make it possible for hardware to produce much higher operating speeds than could previously be achieved through sequential processing. Executing these cooperating, concurrent processes demands that new specification and implementation techniques be developed. This book proposes a method for expressing typical cooperation and competition problems, as well as different synchronization and communication methods for implementing them. Using a general abstract expression to state synchronization constraints between parallel processes, the authors then choose either a centralized or a distributed implementation for the targeted system. Each of these implementations is illustrated with examples drawn from classic problems, and one informal case study (management of access to a swimming pool) is used to compare the various approaches.

Andre, F.; Herman, D.; Verjus, J.P.

1985-01-01T23:59:59.000Z

51

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 30, 2010 - 10:19am Addthis Red. Yellow. Green. What LED traffic signals don't say: Made in USA. That is changing. Dialight Corporation, an LED lighting manufacturer with U.S. corporate offices in Farmingdale, New Jersey, and a parent company based in the U.K., invested nearly $3 million into renovating their 75,000-square-foot production facility in Roxboro, North Carolina. With these improvements, Dialight's Roxboro plant is projected to scale up production by 400 percent. "Bringing manufacturing back to America is a win-win scenario," said Roy Burton, Dialight's Group Chief Executive. "We're helping the economy by creating new jobs, and at the same time we're finding it more

52

Simulation Study of a Traffic Light Assistant Based on Vehicle-Infrastructure Communication  

E-Print Network (OSTI)

Vehicle-infrastructure communication opens up new ways to improve traffic flow efficiency at signalized intersections. In this study, we assume that equipped vehicles can obtain information about switching times of relevant traffic lights in advance, and additionally counting data from upstream detectors. By means of simulation, we investigate, how equipped vehicles can make use of this information to improve traffic flow. Criteria include cycle-averaged capacity, driving comfort, fuel consumption, travel time, and the number of stops. Depending on the overall traffic demand and the penetration rate of equipped vehicles, we generally find several percent of improvement.

Treiber, Martin

2014-01-01T23:59:59.000Z

53

Sensitivity of OFDM Systems to Synchronization Errors and Spatial Diversity  

E-Print Network (OSTI)

Single Input Single Output SNR Signal-to-Noise Ratio STBC Space-Time Block Codes STTC Space-Time Trellis Codes SVD Singular Value Decomposition UWB Ultra Wideband WSSUS Wide Sense Stationary Uncorrelated Scattering ZP Zero Padding ix TABLE... . . . . . . . . . . . . . . . . . . . . . . . . 13 A. Sensitivity of Multi-Band ZP-OFDM Ultra Wideband Receivers to Synchronization Errors . . . . . . . . . . . . . 13 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . 13 2. System Model . . . . . . . . . . . . . . . . . . . . . . 16...

Zhou, Yi

2012-02-14T23:59:59.000Z

54

Synchronized dynamic dose reconstruction  

SciTech Connect

Variations in target volume position between and during treatment fractions can lead to measurable differences in the dose distribution delivered to each patient. Current methods to estimate the ongoing cumulative delivered dose distribution make idealized assumptions about individual patient motion based on average motions observed in a population of patients. In the delivery of intensity modulated radiation therapy (IMRT) with a multi-leaf collimator (MLC), errors are introduced in both the implementation and delivery processes. In addition, target motion and MLC motion can lead to dosimetric errors from interplay effects. All of these effects may be of clinical importance. Here we present a method to compute delivered dose distributions for each treatment beam and fraction, which explicitly incorporates synchronized real-time patient motion data and real-time fluence and machine configuration data. This synchronized dynamic dose reconstruction method properly accounts for the two primary classes of errors that arise from delivering IMRT with an MLC: (a) Interplay errors between target volume motion and MLC motion, and (b) Implementation errors, such as dropped segments, dose over/under shoot, faulty leaf motors, tongue-and-groove effect, rounded leaf ends, and communications delays. These reconstructed dose fractions can then be combined to produce high-quality determinations of the dose distribution actually received to date, from which individualized adaptive treatment strategies can be determined.

Litzenberg, Dale W.; Hadley, Scott W.; Tyagi, Neelam; Balter, James M.; Ten Haken, Randall K.; Chetty, Indrin J. [University of Michigan, Ann Arbor, Michigan 48109 (United States)

2007-01-15T23:59:59.000Z

55

Real-Time Traffic Maps  

E-Print Network (OSTI)

d. (2007). Barcelona Traffic Map. Barcelona. 2007. Berendt,Spatial Thinking with Geographic Maps: An Empirical Study.Data on Choropleth Maps in Series." Annals of the

Goldsberry, Kirk Patrick

2007-01-01T23:59:59.000Z

56

Adopting Synchronous Audiographic Web Conferencing -  

E-Print Network (OSTI)

Adopting Synchronous Audiographic Web Conferencing - A Tale from two Regional Universities universities with a similar student profile as they investigate the use of synchronous audiographic web conferencing as a learning and teaching tool. In both universities, the trials of the web conferencing tool

Loch, Birgit

57

Evaluation of traffic operations at diamond interchanges using advanced actuated control  

E-Print Network (OSTI)

This thesis documents an operational analysis of ographics. advanced actuated traffic control at signalized diamond interchanges. The study attempts to determine the benefits a "flexible'' phasing strategy provides to the interchange. Flexible...

Koonce, Peter John Vincent

1998-01-01T23:59:59.000Z

58

Development of an actuated traffic control process utilizing real-time estimated volume feedbback  

E-Print Network (OSTI)

implement signal operating changes at an actuated traffic signal. The scope of the research dealt with only one traffic control sensor design configuration ? that of 60-foot stopline detection. The overall study results suggest that this design... 24 26 27 Basic Queueing Theory Model. TTI REL CID and Eagle Controller. . . TransLink Roadside Equipment Laboratory. Basic Isolated, Actuated Intersection Testbed. Advanced Isolated, Actuated Intersection Testbed. Eight-Phase, Dual-Ring, Quad...

Pacelli, Michael Joseph

2012-06-07T23:59:59.000Z

59

Explosive Synchronization is Discontinuous  

E-Print Network (OSTI)

Spontaneous explosive is an abrupt transition to collective behavior taking place in heterogeneous networks when the frequencies of the nodes are positively correlated to the node degree. This explosive transition was conjectured to be discontinuous. Indeed, numerical investigations reveal a hysteresis behavior associated with the transition. Here, we analyze explosive synchronization in star graphs. We show that in the thermodynamic limit the transition to (and out) collective behavior is indeed discontinuous. The discontinuous nature of the transition is related to the nonlinear behavior of the order parameter, which in the thermodynamic limit exhibits multiple fixed points. Moreover, we unravel the hysteresis behavior in terms of the graph parameters. Our numerical results show that finite size graphs are well described by our predictions.

Vladimir Vlasov; Yong Zou; Tiago Pereira

2014-11-25T23:59:59.000Z

60

Hanford Traffic Safety FAQs - Hanford Site  

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

the safety pull outs are a place where the Benton County Sheriff and Hanford Patrol can conduct traffic safety operations or enhanced enforcement of traffic laws to increase...

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Chaos Pass Filter: Linear Response of Synchronized Chaotic Systems  

E-Print Network (OSTI)

The linear response of synchronized time-delayed chaotic systems to small external perturbations, i.e., the phenomenon of chaos pass filter, is investigated for iterated maps. The distribution of distances, i.e., the deviations between two synchronized chaotic units due to external perturbations on the transfered signal, is used as a measure of the linear response. It is calculated numerically and, for some special cases, analytically. Depending on the model parameters this distribution has power law tails in the region of synchronization leading to diverging moments of distances. This is a consequence of multiplicative and additive noise in the corresponding linear equations due to chaos and external perturbations. The linear response can also be quantified by the bit error rate of a transmitted binary message which perturbs the synchronized system. The bit error rate is given by an integral over the distribution of distances and is calculated analytically and numerically. It displays a complex nonmonotonic behavior in the region of synchronization. For special cases the distribution of distances has a fractal structure leading to a devil's staircase for the bit error rate as a function of coupling strength. The response to small harmonic perturbations shows resonances related to coupling and feedback delay times. A bi-directionally coupled chain of three units can completely filtered out the perturbation. Thus the second moment and the bit error rate become zero.

Steffen Zeeb; Johannes Kestler; Ido Kanter; Wolfgang Kinzel

2013-01-29T23:59:59.000Z

62

"Traffic Signalization in a Design/Build Contract – Awarded as a Firm-Fixed Price Contract in South Korea – Challenges in Scope Determination and Users Expectations." A Case Study  

E-Print Network (OSTI)

in its 52-year history. http://www.pof.usace.army.mil/Portals/35/docs/Library/EGE%20Archive/2009%20EGE? July%202009.pdf F. LISTSERV 16.0 - USKOREA-KR Archives, U.S. Troop Relocation Shows Strength of U.S.-Korea Alliance, U.S., and ROK...-signalized operation method has advantage of reducing the degree of delay, signalized operation method has advantage of minimize safety hazard factors such as collision between pedestrians and vehicles. Therefore, signalized operation method has been selected...

Martin, Raymond W.

2013-12-20T23:59:59.000Z

63

430 IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, VOL. 5, NO. 5, OCTOBER 2011 Phase-Synchronization Early Epileptic Seizure  

E-Print Network (OSTI)

-Synchronization Early Epileptic Seizure Detector VLSI Architecture Karim Abdelhalim, Student Member, IEEE, Vadim Smolyakov, Student Member, IEEE, and Roman Genov, Senior Member, IEEE Abstract--A low-power VLSI processor architecture that com- putes in real time the magnitude and phase-synchronization of two input neural signals

Genov, Roman

64

ENHANCED AUDIO DATA HIDING SYNCHRONIZATION USING NON LINEAR FILTERS A. LoboGuerrero, F. Marques, P. Bas, J. Lienard,  

E-Print Network (OSTI)

ENHANCED AUDIO DATA HIDING SYNCHRONIZATION USING NON LINEAR FILTERS A. LoboGuerrero, F. Marques, P ABSTRACT This paper address the problem of synchronization in the context of audio data hiding. For real Audio data hiding [1][2] is a method that allows the in- sertion of an imperceptible mark in a signal

Paris-Sud XI, Université de

65

Mathematical simulation of street traffic in the presence of traffic lights  

Science Journals Connector (OSTI)

One-dimensional traffic flow in the presence of two-position traffic lights is considered. A quasi-linear differential equation of the first order for traffic flow density is used as a model. The problem to be...

M. V. Lur’e

2010-06-01T23:59:59.000Z

66

Synchronization in the presence of memory  

E-Print Network (OSTI)

We study the effect of memory on synchronization of identical chaotic systems driven by common external noises. Our examples show that while in general synchronization transition becomes more difficult to meet when memory range increases, for intermediate ranges the synchronization tendency of systems can be enhanced. Generally the synchronization transition is found to depend on the memory range and the ratio of noise strength to memory amplitude, which indicates on a possibility of optimizing synchronization by memory. We also point out on a close link between dynamics with memory and noise, and recently discovered synchronizing properties of networks with delayed interactions.

Rafael Morgado; Michal Ciesla; Lech Longa; Fernando A. Oliveira

2006-10-11T23:59:59.000Z

67

Minimizing Wheel Slip in Railway Locomotives with Coupled Permanent Magnet Synchronous Motors  

E-Print Network (OSTI)

In this work I consider control strategies of permanent magnet synchronous motors in which the back-emf signal from the motor is used to achieve commutation of the six step driving circuit. I show that if the strategy is modified to connect multiple motors in a cyclic chain, then a collective synchronized state is favoured. The stability of this state can be exploited in the bogies of a railway locomotive to automatically terminate wheel slipping episodes.

Shayak Bhattacharjee

2015-01-17T23:59:59.000Z

68

Minimizing Wheel Slip in Railway Locomotives with Coupled Permanent Magnet Synchronous Motors  

E-Print Network (OSTI)

In this work I consider control strategies of permanent magnet synchronous motors in which the back-emf signal from the motor is used to achieve commutation of the six step driving circuit. I show that if the strategy is modified to connect multiple motors in a cyclic chain, then a collective synchronized state is favoured. The stability of this state can be exploited in the bogies of a railway locomotive to automatically terminate wheel slipping episodes.

Shayak Bhattacharjee

2014-10-12T23:59:59.000Z

69

Optimized multiparty quantum clock synchronization  

SciTech Connect

A multiparty protocol for distributed quantum clock synchronization has been claimed to provide universal limits on the clock accuracy, viz., that accuracy monotonically decreases with the number n of party members. But this is only true for synchronization when one limits oneself to W states. This work shows that the usage of Z (Symmetric Dicke) states, a generalization of W states, results in improved accuracy, having a maximum when Left-Floor n/2 Right-Floor of its members have their qubits with a |1> eigenstate.

Ben-Av, Radel; Exman, Iaakov [Software Engineering Department, Jerusalem College of Engineering, POB 3566, Jerusalem, 91035 (Israel)

2011-07-15T23:59:59.000Z

70

Model synchronization: mappings, tiles, and categories  

Science Journals Connector (OSTI)

The paper presents a novel algebraic framework for specification and design of model synchronization tools. The basic premise is that synchronization procedures, and hence algebraic operations modeling them, are diagrammatic: they take a configuration ...

Zinovy Diskin

2009-07-01T23:59:59.000Z

71

Gait synchronization in Caenorhabditis elegans  

Science Journals Connector (OSTI)

...elegans synchronizing their gaits as the trailer approaches the leader. Witness that, from time...propulsive thrusts of the animals. When the trailer’s propulsive thrust exceeded that of the leader...needle segments served the double role of hydraulic connectors and electrodes. The needle...

Jinzhou Yuan; David M. Raizen; Haim H. Bau

2014-01-01T23:59:59.000Z

72

Incorporating traffic patterns to improve delivery performance  

E-Print Network (OSTI)

Traffic, construction and other road hazards impact the on-time performance of companies that operate delivery fleets. This study examines how incorporating traffic patterns in vehicle route development compares with ...

Dickinson, Melody J

2010-01-01T23:59:59.000Z

73

Traffic tolerance and recovery of bermudagrass  

E-Print Network (OSTI)

fertility regimes. Research is needed to determine the influence of bermudagrass cultivar, mowing regime, and nitrogen fertility on traffic tolerance. Research conducted at Texas A&M Univeristy studied the traffic tolerance of Tifsport, GN-1, Princess...

Robinson, William Dustan

2005-08-29T23:59:59.000Z

74

Networks, smart grids: new model for synchronization  

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

Stories » Stories » Networks, smart grids: new model for synchronization Networks, smart grids: new model for synchronization Researchers developed a surprisingly simple mathematical model that accurately predicts synchronization as a function of the parameters and the topology of the underlying network. May 21, 2013 High voltage transmission lines carry electrical power. High voltage transmission lines carry electrical power. The researchers envision that their method could be applied to assess synchronization and robustness quickly in electrical grids under volatile operating conditions. Networks of individual oscillating nodes often spontaneously synchronize and begin to oscillate at a coherent frequency. From heart cells to flashing fireflies to electric power grids, coupled oscillator networks are

75

Hub Synchronization in Scale-Free Networks  

E-Print Network (OSTI)

Heterogeneity in the degree distribution is known to suppress global synchronization in complex networks of symmetrically coupled oscillators. Scale-free networks display a great deal of heterogeneity, containing a few nodes, termed hubs, that are highly connected, while most nodes receive only a few connections. Here, we show that a group of synchronized nodes may appear in scale-free networks: hubs undergo a transition to synchronization while the other nodes remain unsynchronized. This general phenomenon can occur even in the absence of global synchronization. Our results suggest that scale-free networks may have evolved to complement various levels of synchronization.

Tiago Pereira

2010-10-07T23:59:59.000Z

76

Integration of streaming and elastic traffic: a fixed point approach  

Science Journals Connector (OSTI)

We present a fixed point approach to evaluate the quality of service of streaming traffic multiplexed with elastic traffic in multi-service networks. First, we handle elastic traffic and streaming traffic separately, and then we derive a general fixed ... Keywords: elastic traffic, fixed point, quality of service, streaming traffic

H. Hassan; O. Brun; J. M. Garcia; D. Gauchard

2008-03-01T23:59:59.000Z

77

Traffic Management System Performance November 11, 2002  

E-Print Network (OSTI)

Traffic Management System Performance November 11, 2002 David Levinson1 Wei Chen2 Department uses regression analysis to evaluate long-run traffic management system performance. Three important traffic management systems in the Twin Cities metro area - Ramp Metering, Variable Message Signs (VMS

Levinson, David M.

78

Pressemitteilung Graduiertenkolleg Automatismen Media Transatlantic IV Traffic.  

E-Print Network (OSTI)

Pressemitteilung Graduiertenkolleg Automatismen Media Transatlantic IV ­ Traffic. Internationale untersuchen anlässlich der Tagung Media Transatlantic IV ­ Traffic an der Universität Paderborn die verselbstständigende und somit zunehmend unkontrollierbare Strukturen entstehen. Media Transatlantic IV ­ Traffic ist

Paderborn, Universität

79

FAQS Qualification Card - Transportation and Traffic Management |  

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

Transportation and Traffic Management Transportation and Traffic Management FAQS Qualification Card - Transportation and Traffic Management A key element for the Department's Technical Qualification Programs is a set of common Functional Area Qualification Standards (FAQS) and associated Job Task Analyses (JTA). These standards are developed for various functional areas of responsibility in the Department, including oversight of safety management programs identified as hazard controls in Documented Safety Analyses (DSA). For each functional area, the FAQS identify the minimum technical competencies and supporting knowledge and skills for a typical qualified individual working in the area. FAQC-TransportationAndTrafficManagement.docx Description Transportation and Traffic Management Qualification Card

80

Optical synchronization system for femtosecond X-ray sources  

DOE Patents (OSTI)

Femtosecond pump/probe experiments using short X-Ray and optical pulses require precise synchronization between 100 meter-10 km separated lasers in a various experiments. For stabilization in the hundred femtosecond range a CW laser is amplitude modulated at 1-10 GHz, the signal retroreflected from the far end, and the relative phase used to correct the transit time with various implementations. For the sub-10 fsec range the laser frequency itself is upshifted 55 MHz with an acousto-optical modulator, retroreflected, upshifted again and phase compared at the sending end to a 110 MHz reference. Initial experiments indicate less than 1 fsec timing jitter. To lock lasers in the sub-10 fs range two single-frequency lasers separated by several teraHertz will be lock to a master modelocked fiber laser, transmit the two frequencies over fiber, and lock two comb lines of a slave laser to these frequencies, thus synchronizing the two modelocked laser envelopes.

Wilcox, Russell B. (El Cerrito, CA); Holzwarth, Ronald (Munich, DE)

2011-12-13T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Adaptive vibration control using synchronous demodulation with machine tool controller motor commutation  

DOE Patents (OSTI)

A control system and method for actively reducing vibration in a spindle housing caused by unbalance forces on a rotating spindle, by measuring the force-induced spindle-housing motion, determining control signals based on synchronous demodulation, and provide compensation for the measured displacement to cancel or otherwise reduce or attenuate the vibration. In particular, the synchronous demodulation technique is performed to recover a measured spindle housing displacement signal related only to the rotation of a machine tool spindle, and consequently rejects measured displacement not related to spindle motion or synchronous to a cycle of revolution. Furthermore, the controller actuates at least one voice-coil (VC) motor, to cancel the original force-induced motion, and adapts the magnitude of voice coil signal until this measured displacement signal is brought to a null. In order to adjust the signal to a null, it must have the correct phase relative to the spindle angle. The feedback phase signal is used to adjust a common (to both outputs) commutation offset register (offset relative to spindle encoder angle) to force the feedback phase signal output to a null. Once both of these feedback signals are null, the system is compensating properly for the spindle-induced motion.

Hopkins, David James (Livermore, CA)

2008-05-13T23:59:59.000Z

82

Networks, smart grids: new model for synchronization  

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

Networks, smart grids: new model for synchronization Networks, smart grids: new model for synchronization Networks, smart grids: new model for synchronization Researchers developed a surprisingly simple mathematical model that accurately predicts synchronization as a function of the parameters and the topology of the underlying network. May 21, 2013 High voltage transmission lines carry electrical power. High voltage transmission lines carry electrical power. The researchers envision that their method could be applied to assess synchronization and robustness quickly in electrical grids under volatile operating conditions. Networks of individual oscillating nodes often spontaneously synchronize and begin to oscillate at a coherent frequency. From heart cells to flashing fireflies to electric power grids, coupled oscillator networks are

83

In Florida, the bicycle is legally defined as a vehicle. Bicyclists have the same rights to the roadways, and must obey the same traffic laws  

E-Print Network (OSTI)

In Florida, the bicycle is legally defined as a vehicle. Bicyclists have the same rights for this respect. TRAFFIC LAW HIGHLIGHTS Bicycle Regulations [316.2065, F.S.] · A bicyclist must obey all traffic controls and signals. · A bicyclist must use a fixed, regular seat for riding. · No bicycle may be used

Slatton, Clint

84

Synchronization Difficulties Between Traditional Faculty and  

E-Print Network (OSTI)

at the AAPT Summer Meeting, August 9, 2005, Salt Lake City, UT 3 Abstract To identify barriersSynchronization Difficulties Between Traditional Faculty and Education Researchers Charles

Henderson, Charles

85

Spectral Clustering of Synchronous Spike Trains 1 Spectral Clustering of Synchronous  

E-Print Network (OSTI)

Spectral Clustering of Synchronous Spike Trains 1 Spectral Clustering of Synchronous Spike Trains, University of Florida #12;Spectral Clustering of Synchronous Spike Trains 2 Outline Introduction Distance between two spike trains Clustering algorithm Results António Paiva, Sudhir Rao, Il Park and José Príncipe

Paiva, António R. C.

86

EECBG Success Story: Getting Traffic Lights Talking to Improve Topeka's Traffic Tunnel  

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

To improve traffic and reduce emissions, Topeka, Kansas is implementing an "InSync" traffic system that resynchronizing lights to help reduce driving time, financed by an Energy Efficiency and Conservation Block Grant (EECBG). Learn more.

87

Title of dissertation: SYNCHRONIZATION OF CHAOTIC OPTOELECTRONIC OSCILLATORS  

E-Print Network (OSTI)

ABSTRACT Title of dissertation: SYNCHRONIZATION OF CHAOTIC OPTOELECTRONIC OSCILLATORS: ADAPTIVE channels. Here, using a fiber-optic network of chaotic optoelectronic oscillators, we experimentally on synchronization. Through measurements of the convergence rate to synchronization in networks of optoelectronic

Anlage, Steven

88

Bicycle traffic planning and design criteria  

E-Print Network (OSTI)

BICYCLE TRAFFIC PLANNING AND DESIGN CRITERIA A Thesis JHIRASAK VATHANA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1975 Major Subject...: Interdisciplinary Engineering BICYCLE TRAFFIC PLANNING AND DESIGN CRITER1A A Thesis DHIRASAK VATHANA Approved as to style and content by: Chairman of Committee (Head of epartment) j 'j (Memb ) (Member) (Member) May l975 ABSTRACT Bicycle Traffic Planning...

Vathana, Jhirasak

1975-01-01T23:59:59.000Z

89

Mobile Traffic Management System Test Deployment  

E-Print Network (OSTI)

BERKELEY Mobile Traf?c Management System Test DeploymentHIGHWAYS MOBILE TRAFFIC MANAGEMENT SYSTEM TEST DEPLOYMENTMobile Transportation Management System (MTMS). This new and

Gerfen, Jeffrey Brian

2005-01-01T23:59:59.000Z

90

FAQS Reference Guide – Transportation and Traffic Management  

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

This reference guide addresses the competency statements in the September 2002 edition of DOE-STD-1155-2002, Transportation and Traffic Functional Area Qualification Standard.

91

Isochronal synchronization of delay-coupled systems  

E-Print Network (OSTI)

We consider small network models for mutually delay-coupled systems which typically do not exhibit stable isochronally synchronized solutions. We show that for certain coupling architectures which involve delayed self feedback to the nodes, the oscillators become isochronally synchronized. Applications are shown for both incoherent pump coupled lasers and spatio-temporal coupled fiber ring lasers.

Ira B. Schwartz; Leah B. Shaw

2006-09-09T23:59:59.000Z

92

Mechanical Verification of Clock Synchronization Algorithms ?  

E-Print Network (OSTI)

functions, in addition to averaging algorithms. The generic theory is presented as a set of param­ eterizedMechanical Verification of Clock Synchronization Algorithms ? D. Schwier and F. von Henke schwier,vhenke@informatik.uni­ulm.de Universit¨at Ulm, Fakult¨at f¨ur Informatik, D­89069 Ulm, Germany Abstract. Clock synchronization algorithms

Biundo, Susanne

93

Biologically inspired mutual synchronization of manufacturing machines  

E-Print Network (OSTI)

Biologically inspired mutual synchronization of manufacturing machines Erjen Lefeber,a,1 , Herman machine is developed. This control system is based on a synchronization mechanism of enzymes replacing of a single turnover cycle. In manufacturing, batch machines serve several jobs simultaneously, e.g., heat

Armbruster, Dieter

94

Method and system for controlling a synchronous machine over full operating range  

DOE Patents (OSTI)

System and method for controlling a synchronous machine are provided. The method allows for calculating a stator voltage index. The method further allows for relating the magnitude of the stator voltage index against a threshold voltage value. An offset signal is generated based on the results of the relating step. A respective state of operation of the machine is determined. The offset signal is processed based on the respective state of the machine.

Walters, James E. (Carmel, IN); Gunawan, Fani S. (Westfield, IN); Xue, Yanhong (Westfield, IN)

2002-01-01T23:59:59.000Z

95

Design of coupling for synchronization in time-delayed systems  

E-Print Network (OSTI)

We report a design of delay coupling for targeting desired synchronization in delay dynamical systems. We target synchronization, antisynchronization, lag-, antilag- synchronization, amplitude death (or oscillation death) and generalized synchronization in mismatched oscillators. A scaling of the size of an attractor is made possible in different synchronization regimes. We realize a type of mixed synchronization where synchronization, antisynchronization coexist in different pairs of state variables of the coupled system. We establish the stability condition of synchronization using the Krasovskii-Lyapunov function theory and the Hurwitz matrix criterion. We present numerical examples using the Mackey-Glass system and a delay R\\"{o}ssler system.

Dibakar Ghosh; Ioan Grosu; Syamal Kumar Dana

2012-07-03T23:59:59.000Z

96

LIGHT EMITTING DIODE (LED) TRAFFIC SIGNAL SURVEY RESULTS  

E-Print Network (OSTI)

Forest Norco Belmont El Monte Lakewood Norwalk Berkeley Encinitas Lancaster Oakdale Beverly Hills Escalon Downey Laguna Hills Newark Bell Gardens Dublin Laguna Niguel Newport Beach Bellflower El Cajon Lake Hills Glendora Mammoth Lakes Piedmont Chowchilla Grand Terrace Manhattan Beach Pismo Beach Chula Vista

97

BLINC: Multilevel Traffic Classification in the Dark  

E-Print Network (OSTI)

the dark" ­ No port numbers ­ No payload web streaming P2P #12;3 The problem of workload characterizationBLINC: Multilevel Traffic Classification in the Dark Thomas Karagiannis, UC Riverside Konstantina ­ Why in the dark? · Traffic profiling based on TCP/UDP ports ­ Misleading · Payload

Rajamani, Sriram K.

98

Rapid Model Parameterization from Traffic Measurements  

E-Print Network (OSTI)

Rapid Model Parameterization from Traffic Measurements KUN-CHAN LAN and JOHN HEIDEMANN USC Information Sciences Institute The utility of simulations and analysis heavily relies on good models. In this paper, we describe approaches and tools that support rapid parameterization of traffic models from live

Heidemann, John

99

Solutions for traffic lights intersections control  

Science Journals Connector (OSTI)

This work aims to achieve a program that operates the traffic light of intersections with TwidoSoft programming language. The order of priority between traffic rules is implemented in machine specific language TwidoSoft. Keywords: PLC TWIDO, ladder, programming

Marius-Constantin Popescu; Constantin Ranea; Mircea Grigoriu

2010-04-01T23:59:59.000Z

100

Synchronizing compute node time bases in a parallel computer  

SciTech Connect

Synchronizing time bases in a parallel computer that includes compute nodes organized for data communications in a tree network, where one compute node is designated as a root, and, for each compute node: calculating data transmission latency from the root to the compute node; configuring a thread as a pulse waiter; initializing a wakeup unit; and performing a local barrier operation; upon each node completing the local barrier operation, entering, by all compute nodes, a global barrier operation; upon all nodes entering the global barrier operation, sending, to all the compute nodes, a pulse signal; and for each compute node upon receiving the pulse signal: waking, by the wakeup unit, the pulse waiter; setting a time base for the compute node equal to the data transmission latency between the root node and the compute node; and exiting the global barrier operation.

Chen, Dong; Faraj, Daniel A; Gooding, Thomas M; Heidelberger, Philip

2014-12-30T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Synchronization of coupled large-scale Boolean networks  

SciTech Connect

This paper investigates the complete synchronization and partial synchronization of two large-scale Boolean networks. First, the aggregation algorithm towards large-scale Boolean network is reviewed. Second, the aggregation algorithm is applied to study the complete synchronization and partial synchronization of large-scale Boolean networks. Finally, an illustrative example is presented to show the efficiency of the proposed results.

Li, Fangfei, E-mail: li-fangfei@163.com [Department of Mathematics, East China University of Science and Technology, No. 130, Meilong Road, Shanghai, Shanghai 200237 (China)] [Department of Mathematics, East China University of Science and Technology, No. 130, Meilong Road, Shanghai, Shanghai 200237 (China)

2014-03-15T23:59:59.000Z

102

Fermilab | Traffic Safety at Fermilab |  

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

Photo of Street Sign: No Cell Phones While Driving Photo of Street Sign: No Cell Phones While Driving Remember: No on-site cell phone use while driving. Speed limits: Don't let warm weather give you a lead foot The roads are clear, the sun is bright, and the urge to drive a little faster is lurking in the back of our minds. We have our sunglasses on and are flexing our hands in our driving gloves. But before you hit the accelerator take five seconds and think. Remember that posted speeds on site take into consideration visibility, road width and conditions, traffic patterns and other safety factors. Double yellow lines and warning signs are posted to augment safety considerations in that area as well. Fermilab has adopted, as a minimum standard, portions of the State of Illinois Vehicle Code and the Rules of the Road. These are the same

103

Clock synchronization for mobile ad hoc networks  

E-Print Network (OSTI)

As mobile networking advances, there is a need for services such as clock synchronization that improve performance and support the development of higher-level applications. This can be achieved by adapting existing algorithms (such as the Network...

Chandra, Rajan

2013-02-22T23:59:59.000Z

104

Commande coopérative des systèmes monoconvertisseurs multimachines synchrones.  

E-Print Network (OSTI)

??Afin de rendre les machines synchrones à aimants permanents plus attractives pour l'aéronautique (actionneurs de commande de vol, systèmes de freinage, train d'atterrissage ...), il… (more)

Bidart, Damien

2011-01-01T23:59:59.000Z

105

Synchronization of extended systems from internal coherence  

E-Print Network (OSTI)

A condition for the synchronizability of a pair of PDE systems, coupled through a finite set of variables, is commonly the existence of internal synchronization or internal coherence in each system separately. The condition was previously illustrated in a forced-dissipative system, and is here extended to Hamiltonian systems, using an example from particle physics. Full synchronization is precluded by Liouville's theorem. A form of synchronization weaker than "measure synchronization" is manifest as the positional coincidence of coherent oscillations ("breathers" or "oscillons") in a pair of coupled scalar field models in an expanding universe with a nonlinear potential, and does not occur with a variant of the model that does not exhibit oscillons.

Gregory S. Duane

2008-12-02T23:59:59.000Z

106

Global Analysis of Synchronization in Coupled Maps  

E-Print Network (OSTI)

We introduce a new method for determining the global stability of synchronization in systems of coupled identical maps. The method is based on the study of invariant measures. Besides the simplest non-trivial example, namely two symmetrically coupled tent maps, we also treat the case of two asymmetrically coupled tent maps as well as a globally coupled network. Our main result is the identification of the precise value of the coupling parameter where the synchronizing and desynchronizing transitions take place.

Juergen Jost; Kiran M. Kolwankar

2005-12-02T23:59:59.000Z

107

Synchronization of Mechanical Oscillators: An Experimental Study  

E-Print Network (OSTI)

SYNCHRONIZATION OF MECHANICAL OSCILLATORS: AN EXPERIMENTAL STUDY A Thesis by ROOZBEH DANESHVAR Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER OF SCIENCE December... 2010 Major Subject: Electrical Engineering SYNCHRONIZATION OF MECHANICAL OSCILLATORS: AN EXPERIMENTAL STUDY A Thesis by ROOZBEH DANESHVAR Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements...

Daneshvar, Roozbeh

2011-02-22T23:59:59.000Z

108

Online Vehicle Detection For Estimating Traffic Status  

E-Print Network (OSTI)

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

Lai, Ranch Y Q

2011-01-01T23:59:59.000Z

109

Active traffic management on road networks: a macroscopic approach  

Science Journals Connector (OSTI)

...Active traffic management on road networks: a macroscopic approach Alex A. Kurzhanskiy...and Computer Sciences, University...Active traffic management (ATM) is the...by National Science Foundation Award...Active traffic management on road networks: a macroscopic approach. | Active traffic...

2010-01-01T23:59:59.000Z

110

Fermilab | Traffic Safety at Fermilab | Resources  

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

Resources Resources Bicycle and Pedestrian Safety: Pedestrian Safety Awareness for Families Pedestrian Safety at Crosswalks Pedestrian Safety @ Fermilab Bicycle Helmet Safety Institute Take the Share The Road Quiz DuPage County Bike Maps Kane County Bike Maps League of Illinois Bicyclists State of Illinois Regional Bike Maps Rules and regulations: Fermilab traffic rules (FESHM 9010) Fermilab Today article on traffic safety on site, March 1, 2010 Illinois Rules of the Road Illinois ban of cell phone use while driving in school and construction zones (Illinois House Bill 72, passed August 6, 2009): Traffic safety: Illinois traffic safety publications Studies on distracted driving and cell-phone use while driving: http://www.nsc.org/safety_road/Distracted_Driving/Pages/distracted_driving.aspx

111

Traffic Safety Culture Center for Transportation Safety  

E-Print Network (OSTI)

generally opposed to raising the state's gasoline tax to pay for new roads or to make the roads safer. The Texas Traffic Safety Culture Survey was conducted at ten driver license stations operated by the Texas

112

Generalized synchronization of chaos in autonomous systems  

E-Print Network (OSTI)

We extend the concept of generalized synchronization of chaos, a phenomenon that occurs in driven dynamical systems, to the context of autonomous spatiotemporal systems. It means a situation where the chaotic state variables in an autonomous system can be synchronized to each other but not to a coupling function defined from them. The form of the coupling function is not crucial; it may not depend on all the state variables nor it needs to be active for all times for achieving generalized synchronization. The procedure is based on the analogy between a response map subject to an external drive acting with a probability p and an autonomous system of coupled maps where a global interaction between the maps takes place with this same probability. It is shown that, under some circumstances, the conditions for stability of generalized synchronized states are equivalent in both types of systems. Our results reveal the existence of similar minimal conditions for the emergence of generalized synchronization of chaos in driven and in autonomous spatiotemporal systems.

O. Alvarez-Llamoza; M. G. Cosenza

2008-10-13T23:59:59.000Z

113

Data Capture Technique for High Speed Signaling  

DOE Patents (OSTI)

A data capture technique for high speed signaling to allow for optimal sampling of an asynchronous data stream. This technique allows for extremely high data rates and does not require that a clock be sent with the data as is done in source synchronous systems. The present invention also provides a hardware mechanism for automatically adjusting transmission delays for optimal two-bit simultaneous bi-directional (SiBiDi) signaling.

Barrett, Wayne Melvin (Rochester, MN); Chen, Dong (Croton On Hudson, NY); Coteus, Paul William (Yorktwon Heights, NY); Gara, Alan Gene (Mount Kisco, NY); Jackson, Rory (Eastchester, NY); Kopcsay, Gerard Vincent (Yorktown Hieghts, NY); Nathanson, Ben Jesse (Teaneck, NY); Vranas, Paylos Michael (Bedford Hills, NY); Takken, Todd E. (Brewster, NY)

2008-08-26T23:59:59.000Z

114

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

E-Print Network (OSTI)

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

Hiromichi Suetani; Yukito Iba; Kazuyuki Aihara

2005-07-21T23:59:59.000Z

115

Chapter XXXIII Railroad, Subway, and Car Traffic Problems  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses the impact automatic guidance and control systems have on “continuous processes.” The operation of a railroad is indeed a continuous process taking place over tens of thousands of miles of line and in thousands of stations. The operational control of a railway network implies an impressive number of interdependent functions. A number of techniques are used in automating different facets of railroad operation, such as weighing loads in motion and handling trans-shipment of goods traffic. Railroad automation should pay due attention to both the information feedback aspects and the hardware characteristics of the traffic network. Digital automation in the control of autonomous procedures would require the use of electronic computers for train running control, supervision of station and marshalling yard working, and driverless train operation. A computer will use the pulse rate to determine the position, velocity, and acceleration of the train, and, from the frequency variations between the leading and trailing signals, determine the length of the train. The station's control computer will store a speed-distance profile for the section of track it controls. According to this particular approach, instructions to the train will be transmitted in combinations of audio-frequency tones along the “wiggly wire” channel. All control information is designed in digital form.

1966-01-01T23:59:59.000Z

116

Synthesis of Parallel Hardware Implementations from Synchronous Dataflow Graph Specifications  

E-Print Network (OSTI)

Synthesis of Parallel Hardware Implementations from Synchronous Dataflow Graph Specifications, Berkeley Spring 1998 #12; Synthesis of Parallel Hardware Implementations from Synchronous Dataflow Graph Specifications Copyright © 1998 by Michael Cameron Williamson #12; 1 Abstract Synthesis of Parallel Hardware

117

Synthesis of Parallel Hardware Implementations from Synchronous Dataflow Graph Specifications  

E-Print Network (OSTI)

Synthesis of Parallel Hardware Implementations from Synchronous Dataflow Graph Specifications, Berkeley Spring 1998 #12;Synthesis of Parallel Hardware Implementations from Synchronous Dataflow Graph Specifications Copyright © 1998 by Michael Cameron Williamson #12;1 Abstract Synthesis of Parallel Hardware

118

New approach to the fault location problem using synchronized sampling  

E-Print Network (OSTI)

This thesis presents a new approach to solving the problem of fault location on a transmission line using synchronized data from both ends of the line. The synchronized phase voltage and current samples taken during the fault transient are used...

Mrkic, Jasna

2012-06-07T23:59:59.000Z

119

Practical Stability Assessement of Distributed Synchronous Generators Under Load Variations  

E-Print Network (OSTI)

Practical Stability Assessement of Distributed Synchronous Generators Under Load Variations Roman the practical stability of distribution systems with synchronous generators subject to changes in the system a mathematical model of the distribution system with synchronous generators in the form of a switched affine

Pota, Himanshu Roy

120

Lattice Boltzmann model for traffic flow  

Science Journals Connector (OSTI)

Mesoscopic models for traffic flows are usually difficult to be employed because of the appearance of integro-differential terms in the models. In this work, a lattice Boltzmann model for traffic flow is introduced on the basis of the existing kinetics models by using the Bhatnagar-Gross-Krook-type approximation interaction term in the Boltzmann equation and discretizing it in time and phase space. The so-obtained model is simple while the relevant parameters are physically meaningful. Together with its discrete feature, the model can be easily used to investigate numerically the behavior of traffic flows. In consequence, the macroscopic dynamics of the model is derived using the Taylor and Chapman-Enskog expansions. For validating the model, numerical simulations are conducted under the periodic boundary conditions. It is found that the model could reasonably reproduce the fundamental diagram. Moreover, certain interesting physical phenomena can be captured by the model, such as the metastability and stop-and-go phenomena.

Jianping Meng; Yuehong Qian; Xingli Li; Shiqiang Dai

2008-03-06T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

NSTX Synchronization System Block Diagram Control Room  

E-Print Network (OSTI)

NSTX Synchronization System Block Diagram Clock Rack Control Room Junction Area MG FCPCRF Cage Test Cell West Patch Rack Test Cell East Patch Rack Darm Patch Rack CAMAC Crate CAMAC Crate CAMAC Crate' Level, and RF Balcony O 1,230 ft. 1.88 µsec Optic Rack 100 Control Room E 100 ft. .15µsec O 525 ft. .8

Princeton Plasma Physics Laboratory

122

Do visualizations improve synchronous remote collaboration?  

Science Journals Connector (OSTI)

Information visualizations can improve collaborative problem solving, but this improvement may depend on whether visualizations promote communication. In an experiment on the effect of network visualizations, remote pairs worked synchronously to identify ... Keywords: collaboration, communication, cscw, distributed work, empirical studies, information visualization

Aruna D. Balakrishnan; Susan R. Fussell; Sara Kiesler

2008-04-01T23:59:59.000Z

123

Synchronized phasor measurements and the ``SYNCHROPHASOR`` standard  

SciTech Connect

Synchronized phasor measurements have become a practical proposition only during the last few years. As such, their potential for use in power system applications has not yet been fully realized. Anticipating that this technology is about to take off, the Power System Relaying Committee of the IEEE has developed a standard which defines the interface between the Global Positioning System (GPS) and the Phasor Measuring Unit (PMU), and for the communication link between the PMUs and a remote site. The standard (SYNCHROPHASOR) will be published during 1996, and should facilitate the widespread application of this emerging technology. The standard defines the following features of the PMU: format of the message which contains the phasor data, time-tag specification, data frame composition, and a check sum. The standard also includes a specification for the synchronizing pulses which may be produced by a GPS receiver, or by some other synchronizing source. Synchronized phasor measurement units may well be the universal power system transducer of the future. It will serve the needs of all monitoring and control functions in power system control centers, and in many of the back-up relaying functions.

Phadke, A.G. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)

1996-10-01T23:59:59.000Z

124

Generation and Synchronous TreeAdjoining Grammars  

E-Print Network (OSTI)

Generation and Synchronous Tree­Adjoining Grammars Stuart M. Shieber Yves Schabes Aiken Computation) have been proposed as a formal­ ism for generation based on the intuition that the extended domain serving as an aid to generation from semantic representations. We demonstrate that this intuition can

Shieber, Stuart

125

Explicit Communication and Synchronization in SARC  

E-Print Network (OSTI)

· Communication using a 64bit, 5port bufferless crossbar switch · Three Diverse applications Jacobi, Bitonic cores · 2x4x reduced network traffic · 35%70% Energy reduction · 50%90% Energy Delay Product (EDP) gy y ( ) reduction · 15%30% Power consumption reduction Computer Architecture and VLSI Systems Laboratory (CARV

Katevenis, Manolis G.H.

126

Review: constraint programming for air traffic management: A survey1  

Science Journals Connector (OSTI)

Air traffic management (ATM) under its current paradigm is reaching its structural limits considering the continuously growing demand. The need for a decrease in traffic workload opens numerous problems for optimization, from capacity balancing to conflict ...

Cyril Allignol; Nicolas Barnier; Pierre Flener; Justin Pearson

2012-07-01T23:59:59.000Z

127

Traffic Analysis Attacks and Defenses in Low Latency Anonymous Communication  

E-Print Network (OSTI)

Traffic Analysis Attacks and Defenses in Low Latency Anonymous Communication Sambuddho Chakravarty #12;ABSTRACT Traffic Analysis Attacks and Defenses in Low Latency Anonymous Communication Sambuddho the true network identity of com- municating parties against eavesdropping adversaries. Tor, acronym

Keromytis, Angelos D.

128

Fact #581: July 27, 2009 Fuel Wasted in Traffic Congestion  

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

The researchers at the Texas Transportation Institute have recently published new estimates of the effects of traffic congestion. Nearly 3 billion gallons of fuel is wasted each year due to traffic...

129

Green Wave Traffic Optimization A Survey Andreas Warberg  

E-Print Network (OSTI)

Green Wave Traffic Optimization ­ A Survey Andreas Warberg Jesper Larsen Rene Munk Jørgensen)) show traffic has increased by 50% since the 80's and that cars and busses are responsible for more than

130

Cloud-Based Air Traffic Management Announcement | GE Global Research  

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

Works to Bring Air Traffic Management Into "The Cloud" GE Works to Bring Air Traffic Management Into "The Cloud" A global leader in avionics and software development, the General...

131

Dynamic Traffic Assignment Incorporating Commuters’ Trip Chaining Behavior  

E-Print Network (OSTI)

DYNAMIC TRAFFIC ASSIGNMENT INCORPORATING COMMUTERS’ TRIP CHAINING BEHAVIOR A Thesis by WEN WANG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 2011 Major Subject: Civil Engineering Dynamic Traffic Assignment Incorporating Commuters’ Trip Chaining Behavior Copyright 2011 Wen Wang DYNAMIC TRAFFIC ASSIGNMENT...

Wang, Wen

2012-10-19T23:59:59.000Z

132

Rapid model parameterization from traffic measurements Kun-chan Lan  

E-Print Network (OSTI)

Rapid model parameterization from traffic measurements Kun-chan Lan USC Information Sciences, 2002 Abstract The utility of simulations and analysis heavily relies on good models of network traffic describe approaches and tools that support rapid pa- rameterization of traffic models from live network mea

Heidemann, John

133

Identify and Visualize Differences in Traffic Data Zhonghua Xi*  

E-Print Network (OSTI)

Identify and Visualize Differences in Traffic Data Zhonghua Xi* , Jyh-Ming Lien* , Yi-Chang Chiu visualization is developed to automatically search for events of interest using quantitative metrics, while also relies on traffic analysis. Traffic analysis can be approached as a problem of searching for trends

Lien, Jyh-Ming

134

How to Validate Traffic Generators? Sandor Molnar1  

E-Print Network (OSTI)

How to Validate Traffic Generators? S�andor Moln�ar1 , P�eter Megyesi High Speed Networks Lab: geza.szabo@ericsson.com Abstract--Network traffic generators are widely used in net- working research to validate these traffic generators and which metric to choose for validation purpose. This situation makes

Molnár, Sándor

135

Media Transatlantic IV Traffic March 29 31, 2012  

E-Print Network (OSTI)

Conference Media Transatlantic IV ­ Traffic March 29 ­ 31, 2012 University of Paderborn, Germany . d e / r t g - a u t o m a t i s m s Media Transatlantic IV ­ Traffic Graduiertenkolleg Automatismen;Conference Media Transatlantic IV ­ Traffic March 29 ­ 31, 2012 University of Paderborn, Germany Room B 3

Paderborn, Universität

136

Bicycle and pedestrian counting initiative monitors nonmotorized traffic in Minnesota  

E-Print Network (OSTI)

Bicycle and pedestrian counting initiative monitors nonmotorized traffic in Minnesota transitways of Transportation (MnDOT) to develop guidelines and analyze information collected in bicycle and pedestrian traffic methods for monitoring and assessing bicycle and pedestrian traffic that can be used in both permanent

Minnesota, University of

137

Tuning RED for Web Traffic* Mikkel Christiansen,**  

E-Print Network (OSTI)

139 Tuning RED for Web Traffic* Mikkel Christiansen,** Kevin Jeffay, David Ott, F. Donelson Smith http://www.cs.unc.edu/Research/dirt Abstract We study the effects of RED on the performance of Web -- response time for HTTP request-response pairs. We empirically evaluate RED across a range of parameter

Jeffay, Kevin

138

DEMAND SIMULATION FOR DYNAMIC TRAFFIC ASSIGNMENT  

E-Print Network (OSTI)

of the response of travelers to real-time pre- trip information. The demand simulator is an extension of dynamicDEMAND SIMULATION FOR DYNAMIC TRAFFIC ASSIGNMENT Constantinos Antoniou, Moshe Ben-Akiva, Michel Bierlaire, and Rabi Mishalani Massachusetts Institute of Technology, Cambridge, MA 02139 Abstract

Bierlaire, Michel

139

TRAFFIC CONGESTION PRICING METHODS AND TECHNOLOGIES  

E-Print Network (OSTI)

be differentiated by time of day, road type and vehicle characteristics, and even set in real time according for passenger and freight transportation. The European UNITE project estimated the costs of traffic congestion in the UK to be 15 billion/yr. or 1.5% of GDP (Nash et al., 2003). For France and Germany the estimates were

Boyer, Edmond

140

Does Daylight Savings Time Affect Traffic Accidents?  

E-Print Network (OSTI)

This paper studies the effect of changes in accident pattern due to Daylight Savings Time (DST). The extension of the DST in 2007 provides a natural experiment to determine whether the number of traffic accidents is affected by shifts in hours...

Deen, Sophia 1988-

2012-04-20T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Synchronous and Cogged Fan Belt Performance Assessment  

SciTech Connect

The GSA Regional GPG Team commissioned the National Renewable Energy Laboratory (NREL) to perform monitoring of cogged V-belts and synchronous belts on both a constant volume and a variable air volume fan at the Byron G. Rodgers Federal Building and U.S. Courthouse in Denver, Colorado. These motor/fan combinations were tested with their original, standard V-belts (appropriately tensioned by an operation and maintenance professional) to obtain a baseline for standard operation. They were then switched to the cogged V-belts, and finally to synchronous belts. The power consumption by the motor was normalized for both fan speed and air density changes. This was necessary to ensure that the power readings were not influenced by a change in rotational fan speed or by the power required to push denser air. Finally, energy savings and operation and maintenance savings were compiled into an economic life-cycle cost analysis of the different belt options.

Cutler, D.; Dean, J.; Acosta, J.

2014-02-01T23:59:59.000Z

142

The design of a microprogrammed traffic controller  

E-Print Network (OSTI)

, this, too, failed to satisfy the principle of signal- ization. The next technique to be used was automated logical control, This employed a central computer which transmitted signals to each light, and a logical circuit decoded these signals..., this, too, failed to satisfy the principle of signal- ization. The next technique to be used was automated logical control, This employed a central computer which transmitted signals to each light, and a logical circuit decoded these signals...

Tietjen, James Leslie

2012-06-07T23:59:59.000Z

143

FPGA Based Real-time Network Traffic Analysis using Traffic Dispersion Patterns  

SciTech Connect

The problem of Network Traffic Classification (NTC) has attracted significant amount of interest in the research community, offering a wide range of solutions at various levels. The core challenge is in addressing high amounts of traffic diversity found in today's networks. The problem becomes more challenging if a quick detection is required as in the case of identifying malicious network behavior or new applications like peer-to-peer traffic that have potential to quickly throttle the network bandwidth or cause significant damage. Recently, Traffic Dispersion Graphs (TDGs) have been introduced as a viable candidate for NTC. The TDGs work by forming a network wide communication graphs that embed characteristic patterns of underlying network applications. However, these patterns need to be quickly evaluated for mounting real-time response against them. This paper addresses these concerns and presents a novel solution for real-time analysis of Traffic Dispersion Metrics (TDMs) in the TDGs. We evaluate the dispersion metrics of interest and present a dedicated solution on an FPGA for their analysis. We also present analytical measures and empirically evaluate operating effectiveness of our design. The mapped design on Virtex-5 device can process 7.4 million packets/second for a TDG comprising of 10k flows at very high accuracies of over 96%.

Khan, F; Gokhale, M; Chuah, C N

2010-03-26T23:59:59.000Z

144

Cluster Explosive Synchronization in a Power Grid model  

E-Print Network (OSTI)

The emergence of explosive synchronization has been reported as an abrupt transition in complex networks of first-order Kuramoto oscillators. In this Letter, we demonstrate that the nodes in a power grid model, equivalent to a second-order Kuramoto model, perform a cascade of transitions toward a synchronous macroscopic state, a novel phenomenon that we call cluster explosive synchronization. We provide a rigorous analytical treatment using a mean-field analysis in uncorrelated networks. Our findings are in good agreement with numerical simulations and fundamentally deepen the understanding of microscopic mechanisms toward synchronization.

Ji, Peng; Menck, Peter J; Rodrigues, Francisco A; Kurths, Jürgen

2013-01-01T23:59:59.000Z

145

Hybrid function projective synchronization in complex dynamical networks  

SciTech Connect

This paper investigates hybrid function projective synchronization in complex dynamical networks. When the complex dynamical networks could be synchronized up to an equilibrium or periodic orbit, a hybrid feedback controller is designed to realize the different component of vector of node could be synchronized up to different desired scaling function in complex dynamical networks with time delay. Hybrid function projective synchronization (HFPS) in complex dynamical networks with constant delay and HFPS in complex dynamical networks with time-varying coupling delay are researched, respectively. Finally, the numerical simulations show the effectiveness of theoretical analysis.

Wei, Qiang; Wang, Xing-yuan, E-mail: wangxy@dlut.edu.cn; Hu, Xiao-peng [Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024 (China)] [Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024 (China)

2014-02-15T23:59:59.000Z

146

Synchronized Andreev transmission in SNS junction arrays.  

SciTech Connect

We construct a nonequilibrium theory for the charge transfer through a diffusive array of alternating normal (N) and superconducting (S) islands comprising an SNSNS junction, with the size of the central S island being smaller than the energy relaxation length. We demonstrate that in the nonequilibrium regime the central island acts as Andreev retransmitter with the Andreev conversions at both NS interfaces of the central island correlated via above-the-gap transmission and Andreev reflection. This results in a synchronized transmission at certain resonant voltages which in experiments is seen as a sequence of spikes in the differential conductivity.

Chtchelkatchev, N. M.; Baturina, T. I.; Glatz, A.; Vinokur, V. M.; Materials Science Division; Russian Academy of Sciences; Moscow Inst. of Physics and Technology; Inst. Semiconductor Physics

2010-07-29T23:59:59.000Z

147

Optimization of synchronization in gradient clustered networks  

E-Print Network (OSTI)

We consider complex clustered networks with a gradient structure, where sizes of the clusters are distributed unevenly. Such networks describe more closely actual networks in biophysical systems and in technological applications than previous models. Theoretical analysis predicts that the network synchronizability can be optimized by the strength of the gradient field but only when the gradient field points from large to small clusters. A remarkable finding is that, if the gradient field is sufficiently strong, synchronizability of the network is mainly determined by the properties of the subnetworks in the two largest clusters. These results are verified by numerical eigenvalue analysis and by direct simulation of synchronization dynamics on coupled-oscillator networks.

Xingang Wang; Liang Huang; Ying-Cheng Lai; Choy Heng Lai

2007-11-23T23:59:59.000Z

148

FAA Air Traffic Organization Safety Management | Department of Energy  

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

FAA Air Traffic Organization Safety Management FAA Air Traffic Organization Safety Management FAA Air Traffic Organization Safety Management September 20, 2012 Presenter: Mark DeNicuolo, Manager Performance and Analyses Air Traffic Organization Safety and Technical Training Federal Aviation Administration Topics Covered: En Route centers handle 40.5 million aircraft per year FAA/contract towers handle: - 51.2 million airport operations - 39 million instrument operations 732 million passenger enplanements Over 5,000 civil, public-use airports Approximately 33,300 ATO employees - More than 15,000 air traffic controllers - More than 7,000 technicians and engineers 21 ARTCCs, 513 ATCTs, 17 FSSs, 3 AFSSs FAA Air Traffic Organization Safety Management More Documents & Publications FAQS Reference Guide - Aviation Manager

149

Optimization Online - Ship Traffic Optimization for the Kiel Canal  

E-Print Network (OSTI)

Dec 1, 2014 ... ... optimization problem which we call the ship traffic control problem (STCP). ... We offer a unified view of routing and scheduling which blends ...

Elisabeth Lübbecke

2014-12-01T23:59:59.000Z

150

Texas Safe Communities Texans Discovering Traffic Safety Solutions  

E-Print Network (OSTI)

/ Posters Concentrating on Driving Poster Minnesota Network of Employers for Traffic Safety www in America through education, research, and grassroots activism. www.crashprevention.org Drive Now, Talk

151

Energy-efficiency of Drop-and-Continue Traffic Grooming  

Science Journals Connector (OSTI)

This paper evaluates the energy-saving achievable by performing traffic grooming in WDM networks with drop-and-continue node architecture. Different grooming strategies are compared in...

Farahmand, Farid; Cerutti, Isabella; Hasan, Mohammad M; Jue, Jason P

152

Energy Efficient Grooming of Scheduled Sub-wavelength Traffic Demands  

Science Journals Connector (OSTI)

We investigate how awareness of demand holding times can be exploited for energy efficient traffic grooming in optical networks. We present an optimal formulation for minimizing the...

Chen, Ying; Jaekel, Arunita

153

Processus communicants Communication synchrone CSP/CCS/-calcul  

E-Print Network (OSTI)

Processus communicants Communication synchrone CSP/CCS/-calcul Rendez-vous étendu Ada Huitième partie Processus communicants CSP/Ada Systèmes concurrents 2 / 44 #12;Processus communicants Communication synchrone CSP/CCS/-calcul Rendez-vous étendu Ada Principes Synchronisation Désignation

Grigoras, .Romulus

154

SUPER HIGH-SPEED MINIATURIZED PERMANENT MAGNET SYNCHRONOUS MOTOR  

E-Print Network (OSTI)

SUPER HIGH-SPEED MINIATURIZED PERMANENT MAGNET SYNCHRONOUS MOTOR by LIPING ZHENG B.S. Shanghai with the design of permanent magnet synchronous motors (PMSM) to operate at super-high speed with high efficiency shaft output power at 200,000 rpm and at the cryogenic temperature of 77 K. The test results showed

Wu, Thomas

155

Phase synchronization analysis by assessment of the phase difference gradient Martin Vejmelka  

E-Print Network (OSTI)

of rhythms of self-sustained oscillatory systems. Typically when trying to identify phase synchronization of coupled self-sustained oscillatory systems, phase synchronization, given by a relation

Savicky, Petr

156

Synchronization and chaos in spin-transfer-torque nano-oscillators coupled via a high speed Op Amp  

E-Print Network (OSTI)

We propose a system of two coupled spin-torque nano-oscillators (STNOs), one driver and another response, and demonstrate {using numerical studies} the synchronization of the response system to the frequency of the driver system. To this end we use a high speed operational amplifier in the form of a voltage follower which essentially isolates the drive system from the response system. We find the occurrence of 1:1 as w ell as 2:1 synchronization in the system, wherein the oscillators show limit cycle dynamics. An increase in power output is noticed when the two oscillators are locked in 1:1 synchronization. Moreover in the cro ssover region between these two synchronization dynamics we show the existence of chaotic dynamics in the slave system. The coupled dynamics under periodic forcing, using a small ac input current in addition to that of the dc part, is also studied. The slave oscillator is seen to retain its qualitative identity in the parameter space in spite of being fed in, at times, a chaotic signal. Such electrically coupled STNOs will be highly useful in fabricating commercial spin-valve oscillators with high power output, when integrated with other spintronic devices.

C. Sanid; S. Murugesh

2013-12-26T23:59:59.000Z

157

Decision Fusion of Hyperspectral and SAR data for Trafficability Assessment  

E-Print Network (OSTI)

Decision Fusion of Hyperspectral and SAR data for Trafficability Assessment Capt. Pierre Chouinard assessment. To perform the assessment, different types of classification on the two data sets were performed of using both HSI and SAR data in trafficability assessment. Keywords-component; Decision Fusion

Kerekes, John

158

Deriving traffic demands for operational IP networks: methodology and experience  

Science Journals Connector (OSTI)

Engineering a large IP backbone network without an accurate network-wide view of the traffic demands is challenging. Shifts in user behavior, changes in routing policies, and failures of network elements can result in significant (and sudden) fluctuations ... Keywords: Internet, measurement, routing, traffic engineering

Anja Feldmann; Albert Greenberg; Carsten Lund; Nick Reingold; Jennifer Rexford; Fred True

2001-06-01T23:59:59.000Z

159

Visualising Internet Traffic Data with Three-Dimensional Spherical Display  

E-Print Network (OSTI)

successful in this respect has proven to give good predictions about structural features of the InternetVisualising Internet Traffic Data with Three-Dimensional Spherical Display Ben Yip1 , Shea Goyette1 of visualising internet traffic data using the underlying spherical nature of the globe. The method uses data

Hong,Seokhee

160

Analysis of Elephant Users in Broadband Network Traffic  

E-Print Network (OSTI)

Analysis of Elephant Users in Broadband Network Traffic P´eter Megyesi and S´andor Moln´ar High,molnar}@tmit.bme.hu Abstract. Elephant and mice phenomena of network traffic flows have been an interesting research area is caused by a small percentage of large flows, called the elephants. In this paper, we investigate the same

Molnár, Sándor

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Visual traffic surveillance framework: classification to event detection  

E-Print Network (OSTI)

effective. Traffic surveil- lance systems with the ability to detect, count, and classify vehicles can systems. However, vehicle classification poses a difficult problem as vehicles have high intra- class into a unified traffic surveillance system for on- line classification of vehicles, which uses tracking results

Nicolescu, Mircea

162

User-driven dynamic traffic prioritization for home networks  

Science Journals Connector (OSTI)

Network contention in a multi-user home setting can degrade performance for all participants. To maximize user experience, we propose that traffic be prioritized based on the specific activity of the user: the more a user interacts with an application ... Keywords: home networks, prioritization, quality of service, traffic shaping

Jake Martin; Nick Feamster

2012-08-01T23:59:59.000Z

163

Road traffic noise mapping in Guangzhou using GIS and GPS  

Science Journals Connector (OSTI)

Abstract The primary objective of this study is to develop day and night road traffic noise maps for Guangzhou using Geographical Information Systems (GIS) and Global Positioning Systems (GPS). First, as speed-density relation is used to estimate the traffic volume from GPS data collected from floating cars. Meanwhile, the attributes of the roads and buildings are automatically exported from GIS. Second, a single vehicle noise emission model is combined with a noise propagation model to formulate a regional traffic noise calculation model that accounts for the traffic noise attenuation in an urban area. The algorithm is optimized by intelligently dividing the computational grids, filtering the traffic noise sources automatically and performing a quick index of the estimation objects. Finally, the day and night road traffic noise levels in Guangzhou are estimated to create two traffic noise maps. The accuracy of the developed algorithm is validated by conducting a traffic noise monitoring experiment in several districts of Guangzhou with different road types. The results show that the average error between the estimated and measured values is below 2.0 dB.

Ming Cai; Jingfang Zou; Jiemin Xie; Xialin Ma

2015-01-01T23:59:59.000Z

164

A traffic shaping optimization methodology for web systems  

Science Journals Connector (OSTI)

In recent years, computer networks have been characterized by heterogeneous traffic and dynamic management of different kinds of services. The web and network requirements have increased within time and, since bandwidth is limited, it becomes necessary ... Keywords: QoS, internet services, optimization, traffic shaping, world wide web

Caio Mesquita; Ulisses Cavalca; Adriano C.M. Pereira; Eduardo G. Carrano

2013-11-01T23:59:59.000Z

165

Traffic flow models and service rules for complex production systems  

E-Print Network (OSTI)

Traffic flow models and service rules for complex production systems C. Ringhofer Abstract We emphasis is given to the implementation of service rules for complex systems, involving multiple product flow type models for complex production systems. Traffic flow models represent, in some sense

Ringhofer, Christian

166

E-Print Network 3.0 - air traffic flow Sample Search Results  

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

flow Page: << < 1 2 3 4 5 > >> 1 Visualization of Air Traffic Flow for Modeling and Control Applications Banavar Sridhar and Kapil Sheth Summary: Visualization of Air Traffic...

167

Genetic fuzzy logic approach to local ramp metering control using microscopic traffic simulation.  

E-Print Network (OSTI)

??Ramp metering, one of the most effective solutions for improving motorway traffic flows, is playing increasingly important role in traffic management systems. Because of its… (more)

Yu, Xue Feng

2009-01-01T23:59:59.000Z

168

E-Print Network 3.0 - annual average daily traffic Sample Search...  

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

Data Systems 2000. Annual Average Daily Truck Traffic on the California State... Lockout and Non-Lockout Weekdays Average Daily Traffic Volume (vehday) All Cars Trucks ......

169

E-Print Network 3.0 - average daily traffic Sample Search Results  

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

Data Systems 2000. Annual Average Daily Truck Traffic on the California State... Lockout and Non-Lockout Weekdays Average Daily Traffic Volume (vehday) All Cars Trucks...

170

Traffic Loss-Based Lightpath Reconfiguration in the Smart Grid Communication Network  

Science Journals Connector (OSTI)

In order to reduce traffic loss during the lightpath reconfiguration process in the Smart Grid communication network, an Accumulative Traffic Loss (ATL) algorithm is proposed and...

Wang, Hongchuan; Guo, Wei; Hu, Weisheng

171

Modeling walker synchronization on the Millennium Bridge  

Science Journals Connector (OSTI)

On its opening day the London Millennium footbridge experienced unexpected large amplitude wobbling subsequent to the migration of pedestrians onto the bridge. Modeling the stepping of the pedestrians on the bridge as phase oscillators, we obtain a model for the combined dynamics of people and the bridge that is analytically tractable. It provides predictions for the phase dynamics of individual walkers and for the critical number of people for the onset of oscillations. Numerical simulations and analytical estimates reproduce the linear relation between pedestrian force and bridge velocity as observed in experiments. They allow prediction of the amplitude of bridge motion, the rate of relaxation to the synchronized state and the magnitude of the fluctuations due to a finite number of people.

Bruno Eckhardt; Edward Ott; Steven H. Strogatz; Daniel M. Abrams; Allan McRobie

2007-02-12T23:59:59.000Z

172

Self-organizing traffic lights at multiple-street intersections  

E-Print Network (OSTI)

Summary: Traffic light coordination is a complex problem. In this paper, we extend previous work on an abstract model of city traffic to allow for multiple street intersections. We test a self-organizing method in our model, showing that it is close to theoretical optima and superior to a traditional method of traffic light coordination. Abstract: The elementary cellular automaton following rule 184 can mimic particles flowing in one direction at a constant speed. This automaton can therefore model highway traffic. In a recent paper, we have incorporated intersections regulated by traffic lights to this model using exclusively elementary cellular automata. In such a paper, however, we only explored a rectangular grid. We now extend our model to more complex scenarios employing an hexagonal grid. This extension shows first that our model can readily incorporate multiple-way intersections and hence simulate complex scenarios. In addition, the current extension allows us to study and evaluate the behavior of two...

Gershenson, Carlos

2011-01-01T23:59:59.000Z

173

Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque  

DOE Patents (OSTI)

A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.

Umans, Stephen D; Nisley, Donald L; Melfi, Michael J

2014-10-28T23:59:59.000Z

174

Equivalent synchronization of chaos in driven and in autonomous systems  

E-Print Network (OSTI)

It is shown that the synchronization behavior of a system of chaotic maps subject to either an external forcing or a coupling function of their internal variables can be inferred from the behavior of a single element in the system, which can be seen as a single drive-response map. From the conditions for stable synchronization in this single driven-map model with minimal ingredients, we find minimal conditions for the emergence of complete and generalized chaos synchronization in both driven and autonomous associated systems. Our results show that the presence of a common drive or a coupling function for all times is not indispensable for reaching synchronization in a system of chaotic oscillators, nor is the simultaneous sharing of a field, either external or endogenous, by all the elements. In the case of an autonomous system, the coupling function does not need to depend on all the internal variables for achieving synchronization and its functional form is not crucial for generalized synchronization. What becomes essential for reaching synchronization in an extended system is the sharing of some minimal information by its elements, on the average, over long times, independently of the nature (external or internal) of its source.

M. G. Cosenza; O. Alvarez-Llamoza; G. Paredes

2010-05-17T23:59:59.000Z

175

Solving the Traffic and Flitter Challenges with Tulip Award Traffic Mini Challenge: Innovative Visualization and Excellent Description  

E-Print Network (OSTI)

Solving the Traffic and Flitter Challenges with Tulip Award Traffic Mini Challenge: Innovative Visualization and Excellent Description Award Flitter Mini Challenge: Representation of Uncertainty in Rules, while the vertical axis encodes the employee ID and IP address. The horizontal lines in the grid group

Paris-Sud XI, Université de

176

Cluster synchronization in networks of neurons with chemical synapses  

SciTech Connect

In this work, we study the cluster synchronization of chemically coupled and generally formulated networks which are allowed to be nonidentical. The sufficient condition for the existence of stably synchronous clusters is derived. Specifically, we only need to check the stability of the origins of m decoupled linear systems. Here, m is the number of subpopulations. Examples of nonidentical networks such as Hindmarsh-Rose (HR) neurons with various choices of parameters in different subpopulations, or HR neurons in one subpopulation and FitzHugh-Nagumo neurons in the other subpopulation are provided. Explicit threshold for the coupling strength that guarantees the stably cluster synchronization can be obtained.

Juang, Jonq, E-mail: jjuang@math.nctu.edu.tw [Department of Applied Mathematics, and Center of Mathematics Modeling and Scientific Computing, National Chiao Tung University, Hsinchu, Taiwan and National Center for Theoretical Sciences, Hsinchu, Taiwan (China)] [Department of Applied Mathematics, and Center of Mathematics Modeling and Scientific Computing, National Chiao Tung University, Hsinchu, Taiwan and National Center for Theoretical Sciences, Hsinchu, Taiwan (China); Liang, Yu-Hao, E-mail: moonsea.am96g@g2.nctu.edu.tw [Department of Mathematics, National Tsing Hua University, Hsinchu, Taiwan (China)] [Department of Mathematics, National Tsing Hua University, Hsinchu, Taiwan (China)

2014-03-15T23:59:59.000Z

177

Simulation and Verification of Asynchronous Systems by means of a Synchronous Model  

E-Print Network (OSTI)

stuttering) of pro- cesses -- which is allowed in all existing synchronous lan- guages -- and explicit non

Paris-Sud XI, Université de

178

Synchronous and Asynchronous Integrations in an Ocean General Circulation Model  

Science Journals Connector (OSTI)

A basinwide ocean general circulation model of the North Pacific is used to study the difference in distributions of tracers between asynchronous and synchronous integrations. An integration in which equal time steps and no depth acceleration are ...

Yongfu Xu; Shigeaki Aoki; Koh Harada

2002-01-01T23:59:59.000Z

179

Failure Detection with Booting in Partially Synchronous Systems  

E-Print Network (OSTI)

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

180

Parameter Mismatches, Chaos Synchronization and Fast Dynamic Logic Gates  

E-Print Network (OSTI)

By using chaos synchronization between non-identical multiple time delay semiconductor lasers with optoelectronic feedbacks, we demonstrate numerically how fast dynamic logic gates can be constructed. The results may be helpful to obtain a computational hardware with reconfigurable properties.

E. M. Shahverdiev

2009-07-02T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Synchronized Phasor Measurement in Smart Grid Situational Awareness  

Science Journals Connector (OSTI)

Situational awareness (SA) is recognized as a key functionality in smart grids. With the large scale deployment of synchronized ... area situational awareness in the North American power grid are given. Future ch...

Yong Jia; R. Matthew Gardner; Tao Xia; Yilu Liu

2012-01-01T23:59:59.000Z

182

Performance analysis of synchronous machines under dynamic eccentricity  

E-Print Network (OSTI)

The performance of salient pole synchronous machines under eccentric rotors is studied. Relationships between stator and rotor current induced harmonics and dynamic eccentricity are investigated. The winding function theory has been modified...

Al-Nuaim, Nabil Abdulaziz

2012-06-07T23:59:59.000Z

183

Synchronization in complex oscillator networks and smart grids  

Science Journals Connector (OSTI)

...complex network scenarios and in smart grid applications. The scientific interest in the...synchronization condition [2] in a volatile smart grid scenario, we make the following...oscillator networks as well as for smart grid applications. Our results pose...

Florian Dörfler; Michael Chertkov; Francesco Bullo

2013-01-01T23:59:59.000Z

184

Robust Clock Synchronization Methods for Wireless Sensor Networks  

E-Print Network (OSTI)

Wireless sensor networks (WSNs) have received huge attention during the recent years due to their applications in a large number of areas such as environmental monitoring, health and traffic monitoring, surveillance and tracking, and monitoring...

Lee, Jae Han

2011-10-21T23:59:59.000Z

185

Projective synchronization in fractional order chaotic systems and its control  

E-Print Network (OSTI)

The chaotic dynamics of fractional (non-integer) order systems have begun to attract much attention in recent years. In this paper, we study the projective synchronization in two coupled fractional order chaotic oscillators. It is shown that projective synchronization can also exist in coupled fractional order chaotic systems. A simple feedback control method for controlling the scaling factor onto a desired value is also presented.

Chunguang Li

2006-04-24T23:59:59.000Z

186

Author's personal copy Impacts of freeway traffic conditions on in-vehicle exposure to ultrafine  

E-Print Network (OSTI)

particulate matter (Health Effects Institute, 2010). Traffic congestion, in particular, has been cited

Bertini, Robert L.

187

Using Vehicular Networks to Collect Common Traffic Data Mohammad Hadi Arbabi and Michele C. Weigle  

E-Print Network (OSTI)

that with 100% penetration rate, our methods can collect precise traffic data and that even with low penetration rates or low density traffic, we can collect high quality estimates of travel times, time mean speeds. A TO can also report good estimates of traffic data in low penetration or low density traffic situations. 2

Weigle, Michele

188

E-Print Network 3.0 - air traffic emission Sample Search Results  

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

emission Search Powered by Explorit Topic List Advanced Search Sample search results for: air traffic emission...

189

Responding to the Unexpected: Traffic Research in the Wake of Bridge Collapseg p  

E-Print Network (OSTI)

;#12;#12;#12;#12;#12;T ffi R h Q tiTraffic Research Questions · Natural Experimentation Site · Bridge Collapse / ReopenResponding to the Unexpected: Traffic Research in the Wake of Bridge Collapseg p Henry Liu, Ph of the Mississippi River Bridge Collapse #12;Freeway Traffic VolumeFreeway Traffic Volume #12;Congestion Impacts

Levinson, David M.

190

Calibrating Steady-State Traffic Stream and Car-Following Models Using Loop Detector Data  

Science Journals Connector (OSTI)

The research reported in this paper develops a heuristic automated tool (SPD_CAL) for calibrating steady-state traffic stream and car-following models using loop detector data. The performance of the automated procedure is then compared to off-the-shelf ... Keywords: calibration of traffic simulation software, car-following models, traffic modeling, traffic stream models

Hesham Rakha; Mazen Arafeh

2010-05-01T23:59:59.000Z

191

The impact of gasoline price changes on traffic safety: a time geography explanation Guangqing Chi a,  

E-Print Network (OSTI)

The impact of gasoline price changes on traffic safety: a time geography explanation Guangqing Chi, United States a r t i c l e i n f o Keywords: Time geography Gasoline prices Traffic safety Traffic crashes Fatal crashes Space­time path a b s t r a c t The impact of gasoline price changes on traffic

Levinson, David M.

192

Visualization of Traffic Flow and Atmospheric Pollutant Flow in Urban Areas  

E-Print Network (OSTI)

and air pollutants using polygons and translucent particles. The system is applied for public roads around.transport.iis.u-tokyo.ac.jp CCity modelity model Air pollutionAir pollution simsim.. TrafficTraffic simsim.. CCity modelity model Air pollutionAir pollution simsim.. TrafficTraffic simsim.. #12;

Tokyo, University of

193

Low latency memory access and synchronization  

DOE Patents (OSTI)

A low latency memory system access is provided in association with a weakly-ordered multiprocessor system. Bach processor in the multiprocessor shares resources, and each shared resource has an associated lock within a locking device that provides support for synchronization between the multiple processors in the multiprocessor and the orderly sharing of the resources. A processor only has permission to access a resource when it owns the lock associated with that resource, and an attempt by a processor to own a lock requires only a single load operation, rather than a traditional atomic load followed by store, such that the processor only performs a read operation and the hardware locking device performs a subsequent write operation rather than the processor. A simple prefetching for non-contiguous data structures is also disclosed. A memory line is redefined so that in addition to the normal physical memory data, every line includes a pointer that is large enough to point to any other line in the memory, wherein the pointers to determine which memory line to prefetch rather than some other predictive algorithm. This enables hardware to effectively prefetch memory access patterns that are non-contiguous, but repetitive.

Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Ohmacht, Martin (Brewster, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY), Vranas; Pavlos M. (Bedford Hills, NY)

2010-10-19T23:59:59.000Z

194

Low latency memory access and synchronization  

DOE Patents (OSTI)

A low latency memory system access is provided in association with a weakly-ordered multiprocessor system. Each processor in the multiprocessor shares resources, and each shared resource has an associated lock within a locking device that provides support for synchronization between the multiple processors in the multiprocessor and the orderly sharing of the resources. A processor only has permission to access a resource when it owns the lock associated with that resource, and an attempt by a processor to own a lock requires only a single load operation, rather than a traditional atomic load followed by store, such that the processor only performs a read operation and the hardware locking device performs a subsequent write operation rather than the processor. A simple prefetching for non-contiguous data structures is also disclosed. A memory line is redefined so that in addition to the normal physical memory data, every line includes a pointer that is large enough to point to any other line in the memory, wherein the pointers to determine which memory line to prefetch rather than some other predictive algorithm. This enables hardware to effectively prefetch memory access patterns that are non-contiguous, but repetitive.

Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Ohmacht, Martin (Brewster, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

2007-02-06T23:59:59.000Z

195

TRANSPORTATION AND TRAFFIC MANAGEMENT QUALIFICATION STANDARD REFERENCE GUIDE  

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

Transportation Transportation & Traffic Management Qualification Standard Reference Guide APRIL 2010 This page is intentionally blank. i LIST OF FIGURES ...................................................................................................................... ii LIST OF TABLES ........................................................................................................................ ii ACRONYMS ................................................................................................................................ iv PURPOSE...................................................................................................................................... 1 SCOPE ...........................................................................................................................................

196

Impact of Traffic-Related Air Pollution on Health  

Science Journals Connector (OSTI)

Road transport contributes significantly to air quality problems through vehicle emissions, which have ... was to assess the impact of traffic-related air pollution on health of Warsaw citizens, following the...1...

J. Jakubiak-Lasocka; J. Lasocki; R. Siekmeier; Z. Ch?opek

2014-01-01T23:59:59.000Z

197

Deriving traffic demands for operational IP networks: methodology and experience  

Science Journals Connector (OSTI)

Engineering a large IP backbone network without an accurate, network-wide view of the traffic demands is challenging. Shifts in user behavior, changes in routing policies, and failures of network elements can result in significant (and sudden) fluctuations ...

Anja Feldmann; Albert Greenberg; Carsten Lund; Nick Reingold; Jennifer Rexford; Fred True

2000-08-01T23:59:59.000Z

198

Intelligent Cruise Control design based on a traffic flow specification  

E-Print Network (OSTI)

The principal objectives of the Automated Highway graphics. System (AHS), an Intelligent Transportation System (ITS) technology, are to increase the safety and through-put of the existing highway by traffic automation. Advanced Vehicle Control...

Huandra, Rusli

2012-06-07T23:59:59.000Z

199

Distributed Air Traffic Control : A Human Safety Perspective  

E-Print Network (OSTI)

The issues in air traffic control have so far been addressed with the intent to improve resource utilization and achieve an optimized solution with respect to fuel comsumption of aircrafts, efficient usage of the available airspace with minimal congestion related losses under various dynamic constraints. So the focus has almost always been more on smarter management of traffic to increase profits while human safety, though achieved in the process, we believe, has remained less seriously attended. This has become all the more important given that we have overburdened and overstressed air traffic controllers managing hundreds of airports and thousands of aircrafts per day. We propose a multiagent system based distributed approach to handle air traffic ensuring complete human (passenger) safety without removing any humans (ground controllers) from the loop thereby also retaining the earlier advantages in the new solution. The detailed design of the agent system, which will be easily interfacable with the existin...

Nikumbh, Sarvesh; Vartak, Rahul

2011-01-01T23:59:59.000Z

200

Real-Time Traffic Information for Emergency Evacuations  

SciTech Connect

There are many instances in which it is possible to plan ahead for an emergency evacuation (e.g., a chemical processing facility explosion). For those cases, if an accident were to happen, then the best evacuation plan for the prevailing network and weather conditions would be deployed. In other cases (e.g., the derailment of a train transporting hazardous materials), there may not be any previously developed plan to be implemented, and decisions must be made ad-hoc on how to proceed with an emergency evacuation. In both situations, the availability of real-time traffic information plays a critical role in the management of the evacuation operations. Due to cost constraints, only large urban areas have traffic sensor deployments that permit access to some sort of real-time traffic information; an evacuation taking place in other areas of the country would have to proceed without real-time traffic information. In order to improve operations during a vehicular emergency evacuation anywhere, a system of sensors that uses newly developed real-time traffic-information-gathering technologies to assess traffic conditions and to detect incidents on the main evacuation routes is presented in this paper. A series of tests, both in a controlled environment and in the field, were conducted to study the feasibility of such a system of traffic sensors and to assess its ability to provide real-time traffic information during an emergency evacuation. The results of these tests indicated that the prototype sensors are reliable and accurate for the type of application that is the focus of this paper.

Franzese, Oscar [ORNL] [ORNL; Zhang, Li [Mississippi State University (MSU)] [Mississippi State University (MSU); Mahmoud, Anas M. [Mississippi State University (MSU)] [Mississippi State University (MSU)

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Structural and safety characteristics and warrants for highway traffic barriers  

E-Print Network (OSTI)

Ross Highway traffic barriers are highway appurtenances that provide vehicle occupants with a relative degree of protection from roadside hazards and from errant vehicles encroaching across a median. The six basic types of traffic barr1ers are roads... are decision criteria that 1dentify sites along highways that need traff1c barrier installations. Structural and safety character- istics of the barr1ers refer to the impact performance, the structural integrity, and the safety of the vehicle occupants upon...

Kohutek, Terry Lee

2012-06-07T23:59:59.000Z

202

On freeway traffic control by a lane closure  

E-Print Network (OSTI)

closure from an operational point of view as well as how it appeared to the individual drivers. Research methods employed were traffic volume counts and "average" vehicle studies on critical lanes of the study sites. "Average" vehicle studies were...]ectives. PRESENT STATUS OF THE QUESTION. "On Freeways Control Parameters. Ramp Control. Candidate Systems. SELECTION OF STUDY SITE 4 5 9 10 12 Location. Geometric Configuration. Analysis of Traffic Conditions. Selection. METHOD OF STUDY. Procedures...

Henderson, Donald Manson

2012-06-07T23:59:59.000Z

203

Synchronization in Complex Oscillator Networks and Smart Grids  

SciTech Connect

The emergence of synchronization in a network of coupled oscillators is a fascinating topic in various scientific disciplines. A coupled oscillator network is characterized by a population of heterogeneous oscillators and a graph describing the interaction among them. It is known that a strongly coupled and sufficiently homogeneous network synchronizes, but the exact threshold from incoherence to synchrony is unknown. Here we present a novel, concise, and closed-form condition for synchronization of the fully nonlinear, non-equilibrium, and dynamic network. Our synchronization condition can be stated elegantly in terms of the network topology and parameters, or equivalently in terms of an intuitive, linear, and static auxiliary system. Our results significantly improve upon the existing conditions advocated thus far, they are provably exact for various interesting network topologies and parameters, they are statistically correct for almost all networks, and they can be applied equally to synchronization phenomena arising in physics and biology as well as in engineered oscillator networks such as electric power networks. We illustrate the validity, the accuracy, and the practical applicability of our results in complex networks scenarios and in smart grid applications.

Dorfler, Florian [Los Alamos National Laboratory; Chertkov, Michael [Los Alamos National Laboratory; Bullo, Francesco [Center for Control, Dynamical Systems and Computation, University of California at Santa Babara, Santa Barbara CA

2012-07-24T23:59:59.000Z

204

Self-synchronizing scheme for high speed computational ghost imaging  

E-Print Network (OSTI)

Computational ghost imaging needs to acquire a large number of correlated measurements between reference patterns and the scene for reconstruction, so extremely high acquisition speed is crucial for fast ghost imaging. With the development of technologies, high frequency illumination and detectors are both available, but their synchronization needs technique demanding customization and lacks flexibility for different setup configurations. This letter proposes a self-synchronization scheme that can eliminate this difficulty by introducing a high precision synchronization technique and corresponding algorithm. We physically implement the proposed scheme using a 20kHz spatial light modulator to generate random binary patterns together with a 100 times faster photodiode for high speed ghost imaging, and the acquisition frequency is around 14 times faster than that of state-of-the-arts.

Suo, Jinli; Bian, Liheng; Zhang, Lei; Dai, Qionghai

2014-01-01T23:59:59.000Z

205

HVDC control system based on parallel digital signal processors  

SciTech Connect

A numerical HVDC control system operating in real time has been developed for a simulator to be used for operator training. The control system, implemented with digital signal processors (DSPs), consists of typical HVDC control functions such as the synchronizing unit, the regulation unit, the protection unit, the firing unit, the tap changer and the reactive power regulation unit. Results from the steady-state and the transient performance validation tests carried out on the IREQ power system simulator are provided.

Maharsi, Y.; Do, V.Q.; Sood, V.K.; Casoria, S.; Belanger, J. [Hydro-Quebec, Varennes, Quebec (Canada)] [Hydro-Quebec, Varennes, Quebec (Canada)

1995-05-01T23:59:59.000Z

206

Magnetic levitation configuration incorporating levitation, guidance and linear synchronous motor  

DOE Patents (OSTI)

A propulsion and suspension system for an inductive repulsion type magnetically levitated vehicle which is propelled and suspended by a system which includes propulsion windings which form a linear synchronous motor and conductive guideways, adjacent to the propulsion windings, where both combine to partially encircling the vehicle-borne superconducting magnets. A three phase power source is used with the linear synchronous motor to produce a traveling magnetic wave which in conjunction with the magnets propel the vehicle. The conductive guideway combines with the superconducting magnets to provide for vehicle levitation. 3 figures.

Coffey, H.T.

1993-10-19T23:59:59.000Z

207

Time Synchronization in Hierarchical TESLA Wireless Sensor Networks  

SciTech Connect

Time synchronization and event time correlation are important in wireless sensor networks. In particular, time is used to create a sequence events or time line to answer questions of cause and effect. Time is also used as a basis for determining the freshness of received packets and the validity of cryptographic certificates. This paper presents secure method of time synchronization and event time correlation for TESLA-based hierarchical wireless sensor networks. The method demonstrates that events in a TESLA network can be accurately timestamped by adding only a few pieces of data to the existing protocol.

Jason L. Wright; Milos Manic

2009-08-01T23:59:59.000Z

208

Microtubule length dependence of motor traffic in cells  

E-Print Network (OSTI)

In living cells, motor proteins, such as kinesin and dynein can move processively along microtubule (MT), and also detach from or attach to MT stochastically. Experiments have found that, the traffic of motor might be jammed, and various theoretical models have been designed to understand this traffic jam phenomenon. But previous studies mainly focus on motor attachment/detachment rate dependent properties. Recent experiment of Leduc {\\it et al.} found that the traffic jam formation of motor protein kinesin depends also on the length of MT [Proc. Natl. Acad. Sci. U.S.A. {\\bf 109}, 6100-6105 (2012)]. In this study, the MT length dependent properties of motor traffic will be analyzed. We found that MT length has one {\\it critical value} $N_c$, traffic jam occurs only when MT length $N>N_c$. The jammed length of MT increases with total MT length, while the non-jammed MT length might not change monotonically with the total MT length. The critical value $N_c$ increases with motor detachment rate from MT, but decreases with motor attachment rate to MT.

Yunxin Zhang

2012-05-18T23:59:59.000Z

209

Analysis of electrical signatures in synchronous generators characterized by bearing faults  

E-Print Network (OSTI)

Synchronous generators play a vital role in power systems. One of the major mechanical faults in synchronous generators is related to bearings. The popular vibration analysis method has been utilized to detect bearing faults for years. However...

Choi, Jae-Won

2009-05-15T23:59:59.000Z

210

Sensorless Speed Control of Permanent Magnet-Assisted Synchronous Reluctance Motor (PMa-SynRM)  

E-Print Network (OSTI)

An interesting alternative for today's high efficiency variable speed drives is the Permanent Magnet-Assisted Synchronous Reluctance Motor drive, which belongs to the family of brushless synchronous AC motor drives. Generally, the reluctance torque...

Chakali, Anil K.

2011-02-22T23:59:59.000Z

211

Instantaneous information propagation in free flow, synchronized flow, stop-and-go  

E-Print Network (OSTI)

to propagate in a traffic system under certain traffic conditions, penetration rate of equipped cars range and penetration rate for unidirectional roads, bi-directional roads, and road networks. In [6

Mease, Kenneth D.

212

Laboratory to change vehicle traffic-screening regimen at vehicle  

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

Changes to vehicle traffic-screening Changes to vehicle traffic-screening Laboratory to change vehicle traffic-screening regimen at vehicle inspection station Lanes two through five will be open 24 hours a day and won't be staffed by a Laboratory protective force officer. September 1, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

213

State Traffic Safety Information - Fatal Single Vehicle Crashes : District  

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

District District of Columbia (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Single Vehicle Crashes : District of Columbia (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet

214

State Traffic Safety Information - Fatal Crashes Involving Speeding : Iowa  

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

Iowa Iowa (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving Speeding : Iowa (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet

215

State Traffic Safety Information - Fatal Crashes Involving a Large Truck :  

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

Indiana (2007-2009) Indiana (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving a Large Truck : Indiana (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness

216

State Traffic Safety Information - Fatal Crashes Involving a Large Truck :  

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

Idaho (2007-2009) Idaho (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving a Large Truck : Idaho (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet

217

State Traffic Safety Information - Fatal Crashes Involving Speeding :  

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

Kansas (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving Speeding : Kansas (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet

218

State Traffic Safety Information - Fatal Crashes Involving Speeding : Maine  

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

Maine Maine (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving Speeding : Maine (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet

219

State Traffic Safety Information - Fatal Crashes Involving Speeding :  

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

Illinois (2007-2009) Illinois (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving Speeding : Illinois (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet

220

State Traffic Safety Information - Fatal Crashes Involving a Large Truck :  

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

Hawaii (2007-2009) Hawaii (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving a Large Truck : Hawaii (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet

Note: This page contains sample records for the topic "traffic signal synchronization" 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

State Traffic Safety Information - Fatal Crashes Involving a Large Truck :  

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

Delaware (2007-2009) Delaware (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving a Large Truck : Delaware (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness

222

State Traffic Safety Information - Fatal Crashes Involving Speeding :  

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

Hawaii (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving Speeding : Hawaii (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet

223

State Traffic Safety Information - Fatal Crashes Involving a Large Truck :  

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

District of Columbia (2007-2009) District of Columbia (2007-2009) Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data State Traffic Safety Information - Fatal Crashes Involving a Large Truck : District of Columbia (2007-2009) Dataset Summary Description The State Traffic Safety Information (STSI) portal is part of the larger Fatality Analysis Reporting System (FARS) Encyclopedia. STSI provides state-by-state traffic safety profiles, including: crash data, lives saved/savable, legislation, economic costs, grant funding, alcohol related crash data, performance measures, and geographic maps of crash data. Tags {geospatial,fatality,crash,data,safety,roadway,vehicle,human,person} Dataset Ratings Overall 0 No votes yet Data Utility

224

Ad Hoc Synchronization Considered Harmful Weiwei Xiong+, Soyeon Park, Jiaqi Zhang, Yuanyuan Zhou, Zhiqiang Ma*  

E-Print Network (OSTI)

Ad Hoc Synchronization Considered Harmful Weiwei Xiong+, Soyeon Park, Jiaqi Zhang, Yuanyuan Zhou Abstract Many synchronizations in existing multi­threaded pro­ grams are implemented in an ad hoc way. The first part of this paper does a comprehensive characteristic study of ad hoc synchronizations

Zhou, Yuanyuan

225

Design of a High Performance Ferrite Magnet-Assisted Synchronous Reluctance Motor for an  

E-Print Network (OSTI)

Design of a High Performance Ferrite Magnet- Assisted Synchronous Reluctance Motor for an Electric) ferrite-based permanent magnet-assisted synchronous reluctance motor has been designed for an electric. Today, most electric vehicles use permanent magnet synchronous motors that contain rare-earth permanent

Paderborn, Universität

226

Computer Based Motor Parameter Determination for High Speed Operation of Permanent Magnet Synchronous Machines  

E-Print Network (OSTI)

Synchronous Machines B. Szabados and U. Schaible McMaster University 1280 Main St. W., Hamilton, Ontario PM synchronous machine parameters in the high speed operating range. The theory and real interior PM synchronous machine at up to 8000 rpm. Results are presented which show a significant variation

Szabados, Barna

227

Probing scale interaction in brain dynamics through synchronization  

Science Journals Connector (OSTI)

...Theme Issue Complex network theory and the brain compiled and edited by David Papo, Javier...Bullmore Probing scale interaction in brain dynamics through synchronization Alessandro...Theme Issue Complex network theory and the brain . The mammalian brain operates in multiple...

2014-01-01T23:59:59.000Z

228

Conditions for synchronization in Josephson-junction arrays  

SciTech Connect

An effective perturbation theoretical method has been developed to study the dynamics of Josephson Junction series arrays. It is shown that the inclusion of Junction capacitances, often ignored, has a significant impact on synchronization. Comparison of analytic with computational results over a wide range of parameters shows excellent agreement.

Chernikov, A.A.; Schmidt, G. [Stevens Institute of Technology, Hoboken, NJ (United States)

1995-12-31T23:59:59.000Z

229

Conditions for synchronization in Josephson-junction arrays  

SciTech Connect

An effective perturbation theoretical method has been developed to study the dynamics of Josephson-junction series arrays. It is shown that the inclusion of junction capacitances, which is often ignored, has a significant impact on synchronization. Comparison of analytic with computational results over a wide range of parameters shows excellent agreement.

Chernikov, A.A.; Schmidt, G. [Stevens Institute of Technology, Hoboken, New Jersey 07030 (United States)] [Stevens Institute of Technology, Hoboken, New Jersey 07030 (United States)

1995-10-01T23:59:59.000Z

230

ESC: Energy Synchronized Communication in Sustainable Sensor Networks  

E-Print Network (OSTI)

ESC: Energy Synchronized Communication in Sustainable Sensor Networks Yu Gu, Ting Zhu and Tian He Abstract--With advances in energy harvesting techniques, it is now feasible to build sustainable sensor of sustainable sensor networks is to effectively utilize a continuous stream of ambient energy. Instead

Massachusetts at Amherst, University of

231

Software product lines for Web 2.0 synchronous collaboration  

Science Journals Connector (OSTI)

The concepts and technologies that define Web 2.0 has revolutionized and extended computer assisted collaborations. Collaborative applications with synchronous multimedia communication, rich interfaces and using the Web as platform are examples of such ... Keywords: Web 2.0, collaboration, multimedia, software product line

Tiago C. Gaspar; Antônio F. do Prado; Cesar A. C. Teixeira

2009-10-01T23:59:59.000Z

232

Regulation and Synchronization of the Master Circadian Clock by Purinergic Signaling from Suprachiasmatic Nucleus Astrocytes  

E-Print Network (OSTI)

in coordinating system-level physiological rhythms that are entrained to environmental light cues. Many of these neurons and glia are individual circadian oscillators, and the cellular mechanisms that couple them into ensemble oscillations are emerging. Adenosine...

Womac, Alisa Diane

2012-10-19T23:59:59.000Z

233

Synchronized Video: An Interface for Harmonizing Video with Body Movements  

E-Print Network (OSTI)

Synchronized Video: An Interface for Harmonizing Video with Body Movements Yoshihiro Watanabe@ipc.i.u-tokyo.ac.jp ABSTRACT We propose a new media reproduction technology called Syn- chronized Video that supports the learning of new body move- ments. The proposed technology plays video in synchroniza- tion with human body

Yamamoto, Hirosuke

234

Synchronization of PPM over Wideband Multipath Dana Porrat  

E-Print Network (OSTI)

of Electrical Engineering University of Southern California Los Angeles, CA USA ubli@ucs.edu Abstract amount of multi-path in UWB radio channels, methods for harnessing such diversity when the channel potential. We have shown in [6] that in the limit of large bandwidth, threshold based synchronizers cannot

Porrat, Dana

235

Communication using Synchronization of Chaos in Semiconductor Lasers with optoelectronic  

E-Print Network (OSTI)

Communication using Synchronization of Chaos in Semiconductor Lasers with optoelectronic feedback S. The Chaos in the single-mode semiconductor lasers is generated by means of an optoelectronic feedback with optoelectronic feedback has been demonstrated for quite slow data rates by using chaotic wavelength fluctuations

Illing, Lucas

236

Position sensor for linear synchronous motors employing halbach arrays  

DOE Patents (OSTI)

A position sensor suitable for use in linear synchronous motor (LSM) drive systems employing Halbach arrays to create their magnetic fields is described. The system has several advantages over previously employed ones, especially in its simplicity and its freedom from being affected by weather conditions, accumulated dirt, or electrical interference from the LSM system itself.

Post, Richard Freeman

2014-12-23T23:59:59.000Z

237

Permanent magnet assisted synchronous reluctance motor, design and performance improvement  

E-Print Network (OSTI)

with the design optimization of the Permanent Magnet Assisted Synchronous Reluctance Motor (PMa-SynRM). Various key points in the rotor design of a low cost PMa-SynRM are introduced and their effects are studied. Finite element approach has been utilized to show...

Niazi, Peyman

2006-04-12T23:59:59.000Z

238

Synchronous Black Hole Search in Directed Graphs Adrian Kosowski  

E-Print Network (OSTI)

Synchronous Black Hole Search in Directed Graphs Adrian Kosowski Alfredo Navarra Cristina M called black hole nodes, and once a robot enters in one of them, it is destroyed. The goal is to find supported by the Italian CNR Short-Term Mobility Program. A. Kosowski was supported Polish Ministry Grant N

Paris-Sud XI, Université de

239

XGSP-Floor: Floor Control for Synchronous and Ubiquitous Collaboration  

E-Print Network (OSTI)

1 XGSP-Floor: Floor Control for Synchronous and Ubiquitous Collaboration Kangseok Kim1, 2 , Wenjun of software/hardware technologies and wireless networking, there is coming a need for ubiquitous collaboration computing paradigms and collaborative applications, a workspace for working together is being expanded from

240

Signal Control for Oversaturated Intersections Using Fuzzy Logic Ph.D. Candidate  

E-Print Network (OSTI)

05-0156 Signal Control for Oversaturated Intersections Using Fuzzy Logic Lin Zhang Ph.D. Candidate in 9 exhibits 7,110 words total (max = 7500) #12;Zhang, Li, and Prevedouros 1 ABSTRACT The fuzzy logic controller (FLC) presented in this paper simulates the control logic of experienced human traffic controllers

Prevedouros, Panos D.

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Project Information Form Project Title Using Connected Vehicle Technology for Advanced Signal Control  

E-Print Network (OSTI)

,387 Total Project Cost $59,387 Agency ID or Contract Number DTRT13-G-UTC29 Start and End Dates 4/14/2014 ­ 9Project Information Form Project Title Using Connected Vehicle Technology for Advanced Signal/30/15 Brief Description of Research Project Today's conventional traffic control strategies typically rely

California at Davis, University of

242

E-Print Network 3.0 - air traffic services Sample Search Results  

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

Logic for Miles-In-Trail Summary: This paper presents an algorithm which can be used for scheduling arrival air traffic in an Air Route Traffic... (FAA) is in the midst of...

243

E-Print Network 3.0 - air traffic control Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: air traffic control Page: << < 1 2 3 4 5 > >> 1 Visualization of Air Traffic Flow for Modeling and...

244

The integration of Automatic Speech Recognition into the Air Traffic Control system  

E-Print Network (OSTI)

Today, the Air Traffic Control (ATC) system relies primarily on verbal communication between the air traffic controllers and the pilots of the aircraft in the controlled airspace. Although a computer system exists that ...

Karlsson Joakim

1990-01-01T23:59:59.000Z

245

E-Print Network 3.0 - advanced air traffic Sample Search Results  

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

air traffic Page: << < 1 2 3 4 5 > >> 1 Advances in Adaptive Data Analysis Vol. 2, No. 1 (2010) 8196 Summary: FORECASTING THE AIR TRAFFIC FOR NORTH-EAST INDIAN CITIES C....

246

E-Print Network 3.0 - air traffic Sample Search Results  

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

Pollutant Flow in Urban Areas Summary: .transport.iis.u-tokyo.ac.jp CCity modelity model Air pollutionAir pollution simsim.. TrafficTraffic simsim.. CCity modelity model... Air...

247

Simultaneous calibration of a microscopic traffic simulation model and OD matrix  

E-Print Network (OSTI)

With the recent widespread deployment of intelligent transportation systems (ITS) in North America there is an abundance of data on traffic systems and thus an opportunity to use these data in the calibration of microscopic traffic simulation models...

Kim, Seung-Jun

2006-10-30T23:59:59.000Z

248

A Microscopic Traffic Simulation Model for Transportation Planning in Georgios Papageorgiou, Pantelis Damianou, Andreas Pitsilides  

E-Print Network (OSTI)

A Microscopic Traffic Simulation Model for Transportation Planning in Cyprus Georgios Papageorgiou. This paper presents the microscopic simulation model development of a major traffic network of Nicosia simulation model is developed and utilized for transportation planning. 1. Introduction The demand

Pitsillides, Andreas

249

Experience in Measuring Backbone Traffic Variability: Models, Metrics, Measurements and Meaning  

E-Print Network (OSTI)

was specifically motivated by the question: to what extent does traffic variability justify the M. Roughen, A

Fisher, Kathleen

250

ION GNSS 2004, Sept. 21-24, Long Beach, CA Automated Traffic Incident Detection with GPS  

E-Print Network (OSTI)

in Intelligent Transportation Systems (ITS) and in-vehicle telematics systems. ABSTRACT Traffic congestion can. Traffic Incident Detection Systems (IDS) use a variety of technologies to detect incidents so system for traffic incident detection. The system performance analysis was conducted using a combination

Calgary, University of

251

Gasoline price effects on traffic safety in urban and rural areas: Evidence from Minnesota, 19982007  

E-Print Network (OSTI)

Gasoline price effects on traffic safety in urban and rural areas: Evidence from Minnesota, 1998 February 2012 Received in revised form 3 May 2013 Accepted 24 May 2013 Keywords: Gasoline prices Traffic examines the role of gasoline prices in the occurrence of traffic crashes. However, no studies have

Levinson, David M.

252

Coupling traffic models on networks and urban dispersion models for simulating sustainable  

E-Print Network (OSTI)

models for modeling and testing different traffic scenarios, in order to define the impact on air quality it with the urban dispersion model Sirane. Keywords: urban air quality, macroscopic traffic models, road networks, pollutant dispersion models, traffic emissions control. AMS subject classification: 35L65, 35L67, 60K30, 90B

Ceragioli, Francesca

253

Energy cost reduction in the synchronization of a pair of nonidentical coupled Hindmarsh-Rose neurons  

E-Print Network (OSTI)

Many biological processes involve synchronization between nonequivalent systems, i.e, systems where the difference is limited to a rather small parameter mismatch. The maintenance of the synchronized regime in this cases is energetically costly \\cite{1}. This work studies the energy implications of synchronization phenomena in a pair of structurally flexible coupled neurons that interact through electrical coupling. We show that the forced synchronization between two nonidentical neurons creates appropriate conditions for an efficient actuation of adaptive laws able to make the neurons structurally approach their behaviours in order to decrease the flow of energy required to maintain the synchronization regime.

A. Moujahid; A. D'Anjou; F. J. Torrealdea; C. Sarasola

2012-04-17T23:59:59.000Z

254

Study on the relationship between left-turn traffic operations and safety at signalized intersections  

E-Print Network (OSTI)

............................................................ 6? FIGURE 3 Regression Lines and Averaged Data for Model B2 ..................................... 21? FIGURE 4 Regression Lines for Model B4 ..................................................................... 21? FIGURE 5 Left-turn Accident... Distribution ..................................................................... 30? FIGURE 6 Box Plot of the Number of Accidents for Left-Turn Type ............................ 35? FIGURE 7 Box Plot of Number of Crashes for Each Phasing Sequence...

Lee, Sunghoon

2009-06-02T23:59:59.000Z

255

Eco-Approach and Departure Techniques for Connected Vehicles at Signalized Traffic Intersections  

E-Print Network (OSTI)

27], even at low penetration rates of the technology-Fuel savings at different penetration rates under differentat different penetration rate ..48 Fig.4.9 Fuel

Xia, Haitao

2014-01-01T23:59:59.000Z

256

Multimodal Traffic at Isolated Signalized Intersections: New Management Strategies to Increase Capacity  

E-Print Network (OSTI)

passenger car equivalents (pce’s): buses are counted as 1.7phase; 7 and then combined to obtain a single pce value.estimates of maximum pce counts per cycle (capacities) are

Xuan, Yiguang; Gayah, Vikash; Daganzo, Carlos; Cassidy, Michael

2009-01-01T23:59:59.000Z

257

Eco-Approach and Departure Techniques for Connected Vehicles at Signalized Traffic Intersections  

E-Print Network (OSTI)

case the engine is still on and the fuel consumption forengine is still running, thus it has a constant fuel consumption

Xia, Haitao

2014-01-01T23:59:59.000Z

258

Engaging Edge Networks in Preventing and Mitigating Undesirable Network Traffic  

E-Print Network (OSTI)

Introduction The current Internet has few effective mechanisms to prevent a user from flooding network traffic available to well-behaved users, thus pos- ing a significant threat to the Internet's viability (see IAB. In our view, edge networks are in the best position to control hosts who abuse the trust because

Wang, Lan

259

Suppressing Bot Traffic with Accurate Human Attestation Muhammad Jamshed  

E-Print Network (OSTI)

un- wanted bot traffic in the Internet. With a proof of human existence attached to the message significantly reduce bot-generated abuse such as spamming, password cracking or even distributed denial- of permeated into our daily Internet life. Despite decade-long efforts, the volumes of email, blog, and instant

Park, KyoungSoo

260

Caution, drivers! Children present. Traffic, pollution, and infant health  

E-Print Network (OSTI)

air pollution levels on infant health? Our setting is California (with a focus on the Central ValleyCaution, drivers! Children present. Traffic, pollution, and infant health Christopher R. Knittel driving (and especially congestion) on ambient air pollution levels; and (2) what is the impact of modern

Rothman, Daniel

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Measuring Bicyclists' Uptake of Traffic-Related Air Pollution  

E-Print Network (OSTI)

doses 4.Health effects 4Urban Bicyclists' Pollution Uptake #12;Bicyclists' Exposure to Air Pollution 5Measuring Bicyclists' Uptake of Traffic-Related Air Pollution Alex Bigazzi PSU Transportation Uptake 1 #12;Bicycle & Health Promotion Public Health Exercise CrashesPollution Emissions Exposure/ Dose

Bertini, Robert L.

262

NASA/TM2012-217585 Air Traffic Management Technology  

E-Print Network (OSTI)

July 2012 NASA/TM­2012-217585 Air Traffic Management Technology Demonstration-1 Concept Scardina and Michael Greene Crown Consulting, Arlington, Virginia #12;NASA STI Program . . . in Profile Since its founding, NASA has been dedicated to the advancement of aeronautics and space science

263

Themis: A Participatory Navigation System for Balanced Traffic Routing  

E-Print Network (OSTI)

penetration rates based on real data. Experiments using data from 26,000 taxis demonstrate that Themis reduces both traffic congestions and average travel time at various penetration rates as low as 7%. I of dedicated navigation devices [4], the penetration rate of dynamic navigation users is now considerable

Borcea, Cristian

264

Incentive-based Caching Mechanisms for Overlay Traffic Management  

E-Print Network (OSTI)

and Business Burkhard Stiller, Professor, Department of Informatics, University of Zurich Examination Committee Pussep, Robert Wojcik, Jerzy Domzal, Dirk Staehle, Frank Lehrieder, Burkhard Stiller, Assessment. Papafili, P. Racz, S. Soursos, D. Staehle, G. D. Stamoulis, P. Tran-Gia, B. Stiller, An Economic Traffic

Chatziantoniou, Damianos

265

Reducing Cache Traffic and Energy with Macro Data Load  

E-Print Network (OSTI)

Reducing Cache Traffic and Energy with Macro Data Load Lei Jin Sangyeun Cho Department of Computer data load, an efficient mechanism to enhance loaded value reuse. A macro data load brings (MVRT) shows the significantly increased reuse opportunities provided by macro data load. We also

Cho, Sangyeun

266

Estimating Emissions in Latin America: An Alternative to Traffic Models  

E-Print Network (OSTI)

Estimating Emissions in Latin America: An Alternative to Traffic Models Margarita Ossés de Eicker; Hans Hurni, Centre for Development and Environment (CDE), University of Bern, Switzerland Emissions allow precise estimations of these emissions but are too expensive for a broad application. A simplifed

Richner, Heinz

267

Author's personal copy Gasoline prices and traffic safety in Mississippi  

E-Print Network (OSTI)

Drive SE, Minneapolis, MN 55455, USA a b s t r a c ta r t i c l e i n f o Article history: Received 9-grade unleaded gasoline price data from the Energy Information Administration of the U.S. Department of EnergyAuthor's personal copy Gasoline prices and traffic safety in Mississippi Guangqing Chi a, , Arthur

Levinson, David M.

268

Energy-Aware Traffic Engineering Nedeljko Vasic and Dejan Kostic  

E-Print Network (OSTI)

and Communication Sciences, EPFL, Switzerland firstname.lastname@epfl.ch ABSTRACT Energy consumption of the Internet presents Energy-Aware Traffic engineer- ing (EATe), a technique that takes energy consumption into account effect of reduced energy consumption is reduced carbon diox- ide emissions. Cheaper operating costs

Diggavi, Suhas

269

Advances in Traffic Restraint Measures in Urban Areas  

Science Journals Connector (OSTI)

This paper first describes traffic restraint measures applied in urban and/or suburban areas and it assesses the role that these may play in easifying and calming traffic. The nature of these measures and some standard issues in their planning process are presented. The difficulties in the implementation of these measures are then discussed on the basis of a number of 17 traffic management studies carried out in the Athens’ northern suburban area of Maroussi.Following this, the paper proceeds to a further step in the design of such measures by introducing a set of environmental parameters in the whole planning process – the latter determine and affect the environmental quality of urban roads. These parameters are tested in practice for a representative network of roads in the urban complex of Maroussi forming an inner ring road, along which bicycle lanes are introduced and thermal comfort measures are taken. It is proposed these environmental parameters can be involved in the planning process and that can be used as potential tools of an advanced transport policy, which adds the environmental quality of roads to the targets of the whole traffic restraint process.

Evangelos C. Matsoukis

2012-01-01T23:59:59.000Z

270

Real-Time Traffic Information for Emergency Evacuation Operations  

E-Print Network (OSTI)

Real-Time Traffic Information for Emergency Evacuation Operations Research Brief Oak Ridge National Environment Safety Security Vehicle Technologies T here are many instances in which it is possible to plan. The system of sensors will transmit through satellite links, or other robust communication means, real

271

Scram signal generator  

DOE Patents (OSTI)

A scram signal generating circuit for nuclear reactor installations monitors a flow signal representing the flow rate of the liquid sodium coolant which is circulated through the reactor, and initiates reactor shutdown for a rapid variation in the flow signal, indicative of fuel motion. The scram signal generating circuit includes a long-term drift compensation circuit which processes the flow signal and generates an output signal representing the flow rate of the coolant. The output signal remains substantially unchanged for small variations in the flow signal, attributable to long term drift in the flow rate, but a rapid change in the flow signal, indicative of a fast flow variation, causes a corresponding change in the output signal. A comparator circuit compares the output signal with a reference signal, representing a given percentage of the steady state flow rate of the coolant, and generates a scram signal to initiate reactor shutdown when the output signal equals the reference signal.

Johanson, Edward W. (New Lenox, IL); Simms, Richard (Westmont, IL)

1981-01-01T23:59:59.000Z

272

Research on traffic impact analysis and organisation design optimisation for logistics park  

Science Journals Connector (OSTI)

This paper describes domestic and international research results and proposes a method system of logistics park traffic impact analysis and organisation design optimisation. Firstly, the basis of logistics park traffic impact analysis is studied, project position and impact scope are analysed. Secondly, we forecast logistics park traffic demand and analyse the adaptability of road section and logistics park. Moreover, on the basis of these, the paper confirms the implemental principle of traffic organisation design optimisation, put forward logistics park traffic organisation design optimisation model based on multi-agent and corresponding algorithm based on evolutionary algorithm. Finally, it uses traffic simulation to simulate the traffic flow of logistics park and gives quantitative traffic impact assessment by visual animation, based on these, traffic organisation advices are put forward so that the traffic problems can be effectively resolved. This paper, by using the proposed method before, takes Zhengzhou National Arterial Highway Logistics Park for empirical studies, combines macro planning software TransCAD and micro traffic simulation platform VISSIM to demonstrate the feasibility and workability of the method, it get good results; this can offer the reference to logistics park planning and design.

Wei Wang; Xuejun Feng; Jianyu Zhang

2010-01-01T23:59:59.000Z

273

A review of fundamental drivers governing the emissions, dispersion and exposure to vehicle-emitted nanoparticles at signalised traffic intersections  

Science Journals Connector (OSTI)

Abstract Signalised traffic intersections (TIs) are considered as pollution hot-spots in urban areas, but the knowledge of fundamental drivers governing emission, dispersion and exposure to vehicle-emitted nanoparticles (represented by particle number concentration, PNC) at \\{TIs\\} is yet to be established. A number of following key factors, which are important for developing an emission and exposure framework for nanoparticles at TIs, are critically evaluated as a part of this review article. In particular, (i) how do traffic- and wind-flow features affect emission and dispersion of nanoparticles? (ii) What levels of \\{PNCs\\} can be typically expected under diverse signal- and traffic-conditions? (iii) How does the traffic driving condition affect the particle number (PN) emissions and the particle number emission factors (PNEF)? (iv) What is the relative importance of particle transformation processes in affecting the PNCs? (v) What are important considerations for the dispersion modelling of nanoparticles? (vi) What is extent of exposure at \\{TIs\\} with respect to other locations in urban settings? (vii) What are the gaps in current knowledge on this topic where the future research should focus? We found that the accurate consideration of dynamic traffic flow features at \\{TIs\\} is essential for reliable estimates of PN emissions. Wind flow features at \\{TIs\\} are generally complex to generalise. Only a few field studies have monitored \\{PNCs\\} at \\{TIs\\} until now, reporting over an order of magnitude larger peak \\{PNCs\\} (0.7–5.4 × 105 cm?3) compared with average \\{PNCs\\} at typical roadsides (?0.3 × 105 cm?3). The PN emission and thus the \\{PNEFs\\} can be up to an order of magnitude higher during acceleration compared with steady speed conditions. The time scale analysis suggests nucleation as the fastest transformation process, followed by dilution, deposition, coagulation and condensation. Consideration of appropriate flow features, \\{PNEFs\\} and transformation processes emerged as important parameters for reliable modelling of \\{PNCs\\} at TIs. Computation of respiratory deposition doses (RDD) based on the available PNC data suggest that the peak RDD at \\{TIs\\} can be up to 12-times higher compared with average RDD at urban roadsides. Systematic field and modelling studies are needed to develop a sound understanding of the emissions, dispersion and exposure of nanoparticles at the TIs.

Anju Goel; Prashant Kumar

2014-01-01T23:59:59.000Z

274

Synchronization of a renewable energy inverter with the grid  

Science Journals Connector (OSTI)

The design mathematical analysis and testing results of the architecture of a new all-digital phase-locked loop system for synchronizing a voltage source DC-AC single-phase inverter with the low voltage utility grid are presented. The system which is based on the time-delay digital tanlock loop was simulated using matlab/simulink and was tested by subjecting the grid voltage to various perturbations similar to those which can occur in a real power system such as voltage sags and nonlinear distortion of the grid voltage waveform. Results indicate that even in the presence of such perturbations the system achieved and/or re-gained synchronization within 100?ms. The proposed system is all-digital and can be readily implemented using a field programmable gate array and easily embedded into a power inverter.

Nader Anani; Omar Al-Kharji AlAli; Mahmoud Al-Qutayri; Saleh AL-Araji

2012-01-01T23:59:59.000Z

275

Apparatus, system, and method for synchronizing a timer key  

DOE Patents (OSTI)

A timer key relating to monitoring a countdown time of a countdown routine of an electronic device is disclosed. The timer key comprises a processor configured to respond to a countdown time associated with operation of the electronic device, a display operably coupled with the processor, and a housing configured to house at least the processor. The housing has an associated structure configured to engage with the electronic device to share the countdown time between the electronic device and the timer key. The processor is configured to begin a countdown routine based at least in part on the countdown time, wherein the countdown routine is at least substantially synchronized with a countdown routine of the electronic device when the timer key is removed from the electronic device. A system and method for synchronizing countdown routines of a timer key and an electronic device are also disclosed.

Condit, Reston A; Daniels, Michael A; Clemens, Gregory P; Tomberlin, Eric S; Johnson, Joel A

2014-04-22T23:59:59.000Z

276

Synchronized monochromator and insertion device energy scans at SLS  

SciTech Connect

Synchronous monochromator and insertion device energy scans were implemented at the Surfaces/Interfaces:Microscopy (SIM) beamline in order to provide the users fast X-ray magnetic dichroism studies (XMCD). A simple software control scheme is proposed based on a fast monochromator run-time energy readback which quickly updates the insertion device requested energy during an on-the-fly X-ray absorption scan (XAS). In this scheme the Plain Grating Monochromator (PGM) motion control, being much slower compared with the insertion device (APPLE-II type undulator), acts as a 'master' controlling the undulator 'slave' energy position. This master-slave software implementation exploits EPICS distributed device control over computer network and allows for a quasi-synchronous motion control combined with data acquisition needed for the XAS or XMCD experiment.

Krempasky, J.; Flechsig, U.; Korhonen, T.; Zimoch, D.; Quitmann, Ch.; Nolting, F. [Paul Scherrer Institut, Villigen, Swiss Light Source, 5235 Villigen PSI (Switzerland)

2010-06-23T23:59:59.000Z

277

Analysis from robust control under environment constraint: application for traffic model  

Science Journals Connector (OSTI)

Traffic management solutions are increasingly called for to address problems of transport and mobility and nowadays, even to address the environmental impact. Traffic control uses strategies to reduce bottlenecks, travel time and costs. Although it is usually assumed that an improved traffic flow will result in lower vehicle emissions, little scientific research has been done concerning the effects of traffic control on emissions. Moreover, because changes in traffic flow do not necessarily influence travel times, noise and air quality in the same way, there is a clear need for a combined approach. The main idea was to apply control strategy on the road under the assumption of ensuring fluid traffic flow. In the following the gas emissions were evaluated as results of this regulation procedure. The proposed control approach is based on non-integer robust methodology. The chosen study case is a macroscopic traffic flow model.

Milka Uzunova; Mohamed Djemai

2014-01-01T23:59:59.000Z

278

Alternative Fuels Data Center: Natural Gas Safety after a Traffic Accident  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Natural Gas Safety Natural Gas Safety after a Traffic Accident to someone by E-mail Share Alternative Fuels Data Center: Natural Gas Safety after a Traffic Accident on Facebook Tweet about Alternative Fuels Data Center: Natural Gas Safety after a Traffic Accident on Twitter Bookmark Alternative Fuels Data Center: Natural Gas Safety after a Traffic Accident on Google Bookmark Alternative Fuels Data Center: Natural Gas Safety after a Traffic Accident on Delicious Rank Alternative Fuels Data Center: Natural Gas Safety after a Traffic Accident on Digg Find More places to share Alternative Fuels Data Center: Natural Gas Safety after a Traffic Accident on AddThis.com... More in this section... Natural Gas Basics Benefits & Considerations Stations Vehicles Availability Conversions Emissions

279

Laser synchronized high-speed shutter for spectroscopic application  

DOE Patents (OSTI)

A fast mechanical shutter, based on rotating chopper wheels, has been designed and implemented to shutter the entrance slit of a spectrograph. This device enables an exposure time of 9 .mu.s to be achieved for a 0.8 mm wide spectrograph entrance slit, achieves 100% transmission in the open state, and an essentially infinite extinction ratio. The device further incorporates chopper wheel position sensing electronics to permit the synchronous triggering of a laser source.

Miles, Paul C. (Tracy, CA); Porter, Eldon L. (Tracy, CA); Prast, Thomas L. (Livermore, CA); Sunnarborg, Duane A. (Livermore, CA)

2002-01-01T23:59:59.000Z

280

Complex network synchronization of chaotic systems with delay coupling  

SciTech Connect

The study of complex networks enables us to understand the collective behavior of the interconnected elements and provides vast real time applications from biology to laser dynamics. In this paper, synchronization of complex network of chaotic systems has been studied. Every identical node in the complex network is assumed to be in Lur’e system form. In particular, delayed coupling has been assumed along with identical sector bounded nonlinear systems which are interconnected over network topology.

Theesar, S. Jeeva Sathya, E-mail: sjstheesar@gmail.com; Ratnavelu, K., E-mail: sjstheesar@gmail.com [Network Science Research Group, Institute of Mathematical Sciences, University of Malaya, 50603, Kuala Lumpur (Malaysia)

2014-03-05T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

On chip clock synchronization for large digital systems  

E-Print Network (OSTI)

. Figure 4. Figure 5. Data Synchronization. Simple Inverter and Dynamic Power Dissipation. Single Wire Clock Network. H ? Tree Clock Distribution Network. Balanced Clock Tree al'ter [8]. Figurc 6. PLL Based Distributed System. Figurc 7. Phase Lock... terminals are needed which means more levels of gates. This increase in gates increases the total gate skew, and thus the clock skew. By making the clock skew independent of the clock distribution network the last term can be minimized and more levels...

Brueske, Daniel

2012-06-07T23:59:59.000Z

282

Atypical Behavior Identification in Large Scale Network Traffic  

SciTech Connect

Cyber analysts are faced with the daunting challenge of identifying exploits and threats within potentially billions of daily records of network traffic. Enterprise-wide cyber traffic involves hundreds of millions of distinct IP addresses and results in data sets ranging from terabytes to petabytes of raw data. Creating behavioral models and identifying trends based on those models requires data intensive architectures and techniques that can scale as data volume increases. Analysts need scalable visualization methods that foster interactive exploration of data and enable identification of behavioral anomalies. Developers must carefully consider application design, storage, processing, and display to provide usability and interactivity with large-scale data. We present an application that highlights atypical behavior in enterprise network flow records. This is accomplished by utilizing data intensive architectures to store the data, aggregation techniques to optimize data access, statistical techniques to characterize behavior, and a visual analytic environment to render the behavioral trends, highlight atypical activity, and allow for exploration.

Best, Daniel M.; Hafen, Ryan P.; Olsen, Bryan K.; Pike, William A.

2011-10-23T23:59:59.000Z

283

Microsoft Word - 4L_Traffic_DEIR.doc  

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

L-1 ESA / 201074 L-1 ESA / 201074 Public Circulation Draft January 22, 2007 IV.L. Transportation/Traffic IV.L.1 Introduction This chapter evaluates project impacts on transportation facilities and existing transportation operating conditions in the vicinity of the project area, including neighborhood traffic, vehicular circulation, parking, transit and shuttle services, and pedestrian and bicycle circulation. IV.L.2 Setting LBNL is located close to three major highways: Interstate 80/580 1 approximately three miles to the west, and State Routes (SR) 24 and 13, two miles to the south. Access from the Lab to I-80/580 is through the city of Berkeley via arterial roads. Access to SR 24 and SR 13 is via Tunnel Road. Grizzly Peak Boulevard, which runs through a largely undeveloped area, provides a

284

Impact of retailer's promotional activities on customer traffic  

E-Print Network (OSTI)

and Matutes (1994), Blattberg, Briesch and Fox (1995), Drèze (1999), and DeGraba (2003). Although the assumption of a positive relationship between promotional activity and store traffic keeps re-appearing in many papers, empirical studies tackling... are assumed to be positive, although this is not a proven fact. One has to exercise extreme caution when reading through the literature, and not take anything for granted. A good example of inconsequential work is that of Blattberg, Briesch, and Fox (1995...

Tasic, Ivan

2007-09-17T23:59:59.000Z

285

Incorporation of Lagrangian measurements in freeway traffic state estimation  

E-Print Network (OSTI)

, University of California, Berkeley, United States a r t i c l e i n f o Article history: Received 15 May 2009 state estimation GPS-enabled cell-phones Probe data collection a b s t r a c t Cell-phones equipped lose 4.2 billion hours and waste 2.9 billion of fuel gallons per year because of traffic congestion

286

Speci cation and Veri cation of a Steam-Boiler with Signal-Coq Micka l Kerb uf1  

E-Print Network (OSTI)

Speci cation and Veri cation of a Steam-Boiler with Signal-Coq Micka l Kerb uf1 , David Nowak2 assistant, Coq, for the speci cation and the veri cation of co-inductive properties of the well-known steam-boiler cation tools. Keywords: synchronous programming, theorem proving, the steam- boiler problem. 1

Boyer, Edmond

287

DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu, Thomas Kwan  

E-Print Network (OSTI)

of light-emitting diodes (LEDs) over incandescent lights is well-supported. This is due to their high shown that the high brightness LEDs are significantly brighter than the incandescent lights lights with LEDs is a reduction in power consumption [7]. In addition, incandescent traffic signals burn

Pang, Grantham

288

E-Print Network 3.0 - axial-gap type synchronous Sample Search...  

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

of Electrical and Computer Engineering, University of Tennessee Collection: Engineering 2 Ad Hoc Synchronization Considered Harmful Weiwei Xiong+, Soyeon Park, Jiaqi Zhang,...

289

The Optimal Power Tracking Control Strategy of Grid-Connected Excited Synchronous Wind Power Generator.  

E-Print Network (OSTI)

??In this thesis, the wind power system is a coaxial coupling structure between servo motor and excited synchronous wind power generator. By using the excited… (more)

Cheng, Wen-kai

2014-01-01T23:59:59.000Z

290

E-Print Network 3.0 - area synchronized phasor Sample Search...  

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

of PMUs using step signalsz , M. Kezunovic1 Summary: , Ltd. key words: phasor measurement unit; synchronized phasor; dynamic behavior; power grid; step test... voltage and...

291

E-Print Network 3.0 - asynchronous inhibition-mediated synchronization...  

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

modification to the current synchronization algorithm... for the asynchronism problem. Section 7 concludes the paper. ... Source: Lai, Ten-Hwang "Steve" - Department of Computer...

292

The Conventionality of Synchronization and the Causal Structure of Quantum Mechanics  

E-Print Network (OSTI)

Measuring velocities requires the synchronization of spatially-separated clocks. Because this synchronization must precede the determination of velocities, no system of clock synchronization--such as that based on Einstein's presumption of light-speed isotropy--can ever be founded on an experimentally-validated velocity. I argue that this very old observation, which lingers in the philosophical literature under the heading ``Conventionality of Synchronization,'' suggests an explanation of why ``spooky'' quantum correlations can transfer no information at any speed, superluminal or otherwise. This work constitutes the first application of the Conventionality doctrine outside of Relativity itself.

James Carrubba

2006-06-28T23:59:59.000Z

293

Self-Control of Traffic Lights and Vehicle Flows in Urban Road Networks  

E-Print Network (OSTI)

Based on fluid-dynamic and many-particle (car-following) simulations of traffic flows in (urban) networks, we study the problem of coordinating incompatible traffic flows at intersections. Inspired by the observation of self-organized oscillations of pedestrian flows at bottlenecks [D. Helbing and P. Moln\\'ar, Phys. Eev. E 51 (1995) 4282--4286], we propose a self-organization approach to traffic light control. The problem can be treated as multi-agent problem with interactions between vehicles and traffic lights. Specifically, our approach assumes a priority-based control of traffic lights by the vehicle flows themselves, taking into account short-sighted anticipation of vehicle flows and platoons. The considered local interactions lead to emergent coordination patterns such as ``green waves'' and achieve an efficient, decentralized traffic light control. While the proposed self-control adapts flexibly to local flow conditions and often leads to non-cyclical switching patterns with changing service sequences ...

Lämmer, Stefan

2008-01-01T23:59:59.000Z

294

Synchronization of multimedia streams over packet-switched networks  

E-Print Network (OSTI)

-TIME MULTIMEDIA NETWORK AP- PLICATIONS A. Compression . 1. Audio Compression 2. Video Compression B. Sources of Variable Delay . 1. Coding Delays 2. Network Jitter 3. Sum Effects of Delays C. QoS and Network Protocols 1. Quality of Service (Qo... header fields 45 21 Temporal distortion caused by delay adjustment during a talkspurt. . 46 22 End-to-end steps for a video frame 48 23 End-to-end steps for an audio segment. 24 Synchronization Algorithm. 51 25 26 27 28 Original end-to-end delay...

Brewer, Jason M.

2012-06-07T23:59:59.000Z

295

Development of a Web-based Emissions Reduction Calculator for Street Light and Traffic Light Retrofits  

E-Print Network (OSTI)

DEVELOPMENT OF A WEB-BASED, EMISSIONS REDUCTION CALCULATOR FOR STREET LIGHT AND TRAFFIC LIGHT RETROFITS Zi Liu, Ph.D. Research Engineer Jeff S. Haberl, Ph.D., P.E. Professor/Assc. Director Don Gilman, P..., street lights and traffic lights represent one of the largest categories of electricity used by a city. By retrofitting the street lights with energy efficient lamps such as high pressure sodium and metal halide and traffic lights with light...

Liu, Z.; Gilman, D.; Haberl, J. S.; Culp, C.

2005-01-01T23:59:59.000Z

296

A model of pedestrians’ intended waiting times for street crossings at signalized intersections  

Science Journals Connector (OSTI)

For the purposes of both traffic-light control and the design of roadway layouts, it is important to understand pedestrian street-crossing behavior because it is not only crucial for improving pedestrian safety but also helps to optimize vehicle flow. This paper explores the mechanism of pedestrian street crossings during the red-man phase of traffic light signals and proposes a model for pedestrians’ waiting times at signalized intersections. We start from a simplified scenario for a particular pedestrian under specific traffic conditions. Then we take into account the interaction between vehicles and pedestrians via statistical unconditioning. We show that this in general leads to a U-shaped distribution of the pedestrians’ intended waiting time. This U-shaped distribution characterizes the nature of pedestrian street-crossing behavior, showing that in general there are a large proportion of pedestrians who cross the street immediately after arriving at the crossing point, and a large proportion of pedestrians who are willing to wait for the entire red-man phase. The U-shaped distribution is shown to reduce to a J-shaped or L-shaped distribution for certain traffic scenarios. The proposed statistical model was applied to analyze real field data.

Baibing Li

2013-01-01T23:59:59.000Z

297

Identifying Traffic-Related Air Pollution Hotspots in the Built Environment  

E-Print Network (OSTI)

419, 7-15. Health Effects Institute. (2010). Traffic-relatedand health effects. Health Effects Institute, 17. Boston,al. , 2002). The Health Effects Institute (HEI, 2010) report

Wu, Lisa

2014-01-01T23:59:59.000Z

298

E-Print Network 3.0 - air route traffic control centers Sample...  

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

routing algorithms for traffic classes that require... mechanisms such as congestion control and scheduling, we develop ... Source: Carnegie Mellon University, School of...

299

E-Print Network 3.0 - air traffic management Sample Search Results  

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

Page: << < 1 2 3 4 5 > >> 1 Visualization of Air Traffic Flow for Modeling and Control Applications Banavar Sridhar and Kapil Sheth Summary: flexible system with higher...

300

Energy Saving Through Traffic Profiling and Prediction in Self-Optimizing Optical Networks  

Science Journals Connector (OSTI)

A method that automatically learns and predicts the traffic behavior to save energy by adjusting the number of active optical carriers is presented. Simulations prove it provides large...

Siracusa, Domenico; Pederzolli, Federico; Lo Cigno, Renato; Salvadori, Elio

Note: This page contains sample records for the topic "traffic signal synchronization" 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

On the Usage of Multiflow Transponders under Anycast and Unicast Traffic in Elastic Optical Networks  

Science Journals Connector (OSTI)

The impact of anycast and unicast traffic on transponder usage in both symmetric and asymmetric lightpath provisioning scenarios in Elastic Optical Networks is studied. Acceptable...

Walkowiak, Krzysztof; Klinkowski, Miroslaw

302

E-Print Network 3.0 - automated mixed traffic Sample Search Results  

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

Lab Collection: Computer Technologies and Information Sciences 13 A Microscopic Traffic Simulation Model for Transportation Planning in Georgios Papageorgiou, Pantelis Damianou,...

303

E-Print Network 3.0 - automated control traffic Sample Search...  

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

the Applications of Agent Technology Summary: or others. This feature helps to implement automated traffic control and management systems. Agents... modeling and simulation,...

304

E-Print Network 3.0 - arbitrary traffic channels Sample Search...  

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

Computer Technologies and Information Sciences 28 Model-Based Covert Timing Channels: Automated Modeling and Evasion Summary: . Keywords: covert timing channels, traffic...

305

Walking and Automobile Traffic Near Schools: Data to SUpport An Evaluation Of School Pedestrian Safety Programs  

E-Print Network (OSTI)

Anderson Walking And Automobile Traffic Near Schools: Dataof many pedestrian-automobile conflicts both on public roadsthe unique nature of both automobile and walking travel near

Anderson, Craig L MPH, PhD; Boarnet, Marlon G.; McMillan, Tracy; Alfonzo, Mariela; Day, Kristen

2002-01-01T23:59:59.000Z

306

Distributed Architecture for Real-time Traffic Analysis Cristian Morariu, Burkhard Stiller  

E-Print Network (OSTI)

Distributed Architecture for Real-time Traffic Analysis Cristian Morariu, Burkhard Stiller Department of Informatics, University of Zürich CH-8050, Zürich, Switzerland {morariu, stiller

Boyer, Edmond

307

Effects of Levels of Automation on Air Traffic Controller Situation Awareness and Performance.  

E-Print Network (OSTI)

??To meet the increasing demands of air traffic, the Joint Planning and Development Office has proposed initiatives to modernize the U.S. National Airspace System (NAS).… (more)

Sethumadhavan, Arathi

2009-01-01T23:59:59.000Z

308

Performance Evaluation of Multi-Layer Traffic Engineering Enabled IP-over-ION Networks  

Science Journals Connector (OSTI)

Recently, network operators started implementing traffic engineering (TE) techniques in their network. These ... layer. The evolution towards intelligent optical networks (IONs) allows further increasing the impr...

Qiang Yan; Didier Colle; Sophie De Maesschalck…

2005-05-01T23:59:59.000Z

309

Traffic Grooming for IP-Over-WDM Networks: Energy and Delay Perspectives  

Science Journals Connector (OSTI)

As energy consumption has become a major concern of networks, traffic grooming studies on Internet protocol over wavelength division multiplexing (IP-over-WDM) networks have been...

Lee, Chankyun; Rhee, June-Koo Kevin

2014-01-01T23:59:59.000Z

310

Geothermal heating enhances atmospheric asymmetries on synchronously rotating planets  

E-Print Network (OSTI)

Earth-like planets within the liquid water habitable zone of M type stars may evolve into synchronous rotators. On these planets, the sub-stellar hemisphere experiences perpetual daylight while the opposing anti-stellar hemisphere experiences perpetual darkness. Because the night-side hemisphere has no direct source of energy, the air over this side of the planet is prone to freeze out and deposit on the surface, which could result in atmospheric collapse. However, general circulation models (GCMs) have shown that atmospheric dynamics can counteract this problem and provide sufficient energy transport to the anti-stellar side. Here we use an idealized GCM to consider the impact of geothermal heating on the habitability of synchronously rotating planets. Geothermal heating may be expected due to tidal interactions with the host star, and the effects of geothermal heating provide additional habitable surface area and may help to induce melting of ice on the anti-stellar hemisphere. We also explore the persisten...

Haqq-Misra, Jacob

2014-01-01T23:59:59.000Z

311

Recovery Act | Department of Energy  

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

27, 2010 27, 2010 A worker synchronizes a traffic light on State Road A1A in St. Augustine, FL. | Energy Department Photo | Florida County Seeks to Reduce Emissions and Improve Traffic St. Johns County, Florida is tackling its traffic-timing problem with a little help from an Energy Department Energy Efficiency and Conservation Block grant. The county will use the grant to improve traffic flow by re-synchronizing signals at five major road segments. In total, 23 traffic signals will be retimed and synchronized, resulting in lower fuel consumption, shorter travel times, increased travel speed, less stopping and less engine idling. September 23, 2010 Solar panels have been installed at a shelter facility near Ulster County Fairgrounds. | Photo courtesy of Ulster County

312

The RTMS (Remote Traffic Microwave Sensor) unit is a traffic sensor which uses microwave signals to detect vehicles. Unlike sensors which use the Doppler effect, this sensor  

E-Print Network (OSTI)

counter unit. Additional items for deployment include solar panel, batteries and modem with cellular dimly. The LED is bright only when data is being downloaded from it. Solar Panel The solar panel batteries are used they must be connected in parallel. The solar panel, batteries, and the load all connect

Prevedouros, Panos D.

313

Design of optimal digital controller for stable super-high-speed permanent-magnet synchronous  

E-Print Network (OSTI)

Design of optimal digital controller for stable super-high-speed permanent-magnet synchronous motor collaborative design scheme of a super-high-speed permanent-magnet synchronous motor (PMSM) and its digital is an attractive solution for super-high-speed PMSMs because of its inherent lack of mechanical shaft sensors

Wu, Thomas

314

Sequentially Constructive Concurrency—A Conservative Extension of the Synchronous Model of Computation  

Science Journals Connector (OSTI)

Synchronous languages ensure determinate concurrency but at the price of restrictions on what programs are considered valid, or constructive. Meanwhile, sequential languages such as C and Java offer an intuitive, familiar programming paradigm ... Keywords: Concurrency, Esterel, constructiveness, determinacy, determinism, embedded systems, reactive systems, synchronous languages

Reinhard Von Hanxleden; Michael Mendler; Joaquín Aguado; Björn Duderstadt; Insa Fuhrmann; Christian Motika; Stephen Mercer; Owen O'brien; Partha Roop

2014-07-01T23:59:59.000Z

315

A synchronous model of the PLC programming language ST Fernando Jimenez-Fraustro  

E-Print Network (OSTI)

A synchronous model of the PLC programming language ST Fernando Jimenez-Fraustro IRISA / INRIA F of a synchronous model of the PLC programming lan- guage ST. This work is part of the integration of the IEC 1131 Logic Controllers (PLC) architec- tures. Their design relies on standards like the IEC 1131 norm

Boyer, Edmond

316

Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period  

E-Print Network (OSTI)

Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period R (2006), Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period histories from ice coring of Greenland and Antarctica over the period 2 to 45 ka, using SO4 anomalies

Price, P. Buford

317

Internet Time Synchronization: the Network Time Protocol1,2,3 David L. Mills  

E-Print Network (OSTI)

Internet Time Synchronization: the Network Time Protocol1,2,3 David L. Mills Electrical Engineering is designed to distribute time information in a large, diverse internet system operating at speeds from and resulted in the designation of NTP as an Internet Standard protocol. The NTP synchronization system, which

Mills, David L.

318

Synchronization and Transient Stability in Power Networks and Non-Uniform Kuramoto Oscillators  

E-Print Network (OSTI)

increasingly on renewable energy sources, such as wind and solar power, which cause stochastic disturbances in the loss of synchronism of the Italian power grid with the rest of Europe. In a classic settingSynchronization and Transient Stability in Power Networks and Non-Uniform Kuramoto Oscillators

Bullo, Francesco

319

Multi-criteria based design approach of multiphase permanent magnet low speed synchronous machines  

E-Print Network (OSTI)

Multi-criteria based design approach of multiphase permanent magnet low speed synchronous machines'Ecole Navale Letellier, Paul; Groupe Altawest, Jeumont Electric Keyword: AC MACHINES, BRUSHLESS MACHINES low speed synchronous machines April 21, 2008 Abstract This paper presents a design methodology

Paris-Sud XI, Université de

320

A Robust Synchronization for 230 MHz Electricity System in the Presence of Narrowband Interference  

Science Journals Connector (OSTI)

In this paper, a robust timing and frequency synchronization method in the presence of narrowband interference is proposed for 230MHz electricity communication system. A narrowband interference detection module and an adaptive filter are applied in the ... Keywords: Synchronization, 230MHz Electricity System, Narrowband interference, OFDM

Hongjian Gao, Jianqi Li, Tao Zhao, Yong Zhao

2014-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

SYNCHRONIZATION OF PRESENTATION SLIDES AND LECTURE VIDEOS USING BIT RATE SEQUENCES  

E-Print Network (OSTI)

SYNCHRONIZATION OF PRESENTATION SLIDES AND LECTURE VIDEOS USING BIT RATE SEQUENCES G. Schroth1 , N The temporal synchronization of presentation slides and lecture videos enables us to enhance the user and reliably detect and recognize slide changes, which is based on bit rate sequences. By exploiting readily

Girod, Bernd

322

Synchronization-Free Parallel Collision Detection Pipeline Quentin Avril Valerie Gouranton Bruno Arnaldi  

E-Print Network (OSTI)

Synchronization-Free Parallel Collision Detection Pipeline Quentin Avril Val´erie Gouranton Bruno a first parallel and adaptive collision detection pipeline running on a multi-core architecture. This pipeline integrates a first global synchronization-free parallelization of its major steps and enables

Paris-Sud XI, Université de

323

Wavelength stabilization of a synchronously pumped optical parametric oscillator: Optimizing proportional-integral control  

E-Print Network (OSTI)

. The gain storage intrinsic in a synchronously pumped laser allows it to tolerate a small repetition fre, modifies the output power of the system. Therefore, changes in the pump pulse repetition frequency PRF. Using this approach in a synchronously pumped system suffers from a significant drawback due

324

Performance evaluation of time synchronization and clock drift compensation in wireless personal area networks  

Science Journals Connector (OSTI)

Efficient algorithms for time synchronization, including compensation for clock drift, are essential in order to obtain reliable fusion of data samples from multiple wireless sensor nodes. This paper evaluates the performance of algorithms based on three ... Keywords: IEEE 802.15, bluetooth, clock drift, data fusion, time synchronization

Jonas Wåhslén; Ibrahim Orhan; Dennis Sturm; Thomas Lindh

2012-02-01T23:59:59.000Z

325

Leveraging synchronous language principles for heterogeneous modeling and design of embedded systems  

Science Journals Connector (OSTI)

This paper gives a semantics for discrete-event (DE) models that generalizes that of synchronous/reactive (SR) languages, and a continuous-time (CT) semantics that generalizes the DE semantics. It shows that all three semantic models can be used in actor-oriented ... Keywords: composition, discrete events, hybrid systems, model-based design, operational semantics, simulation, synchronous languages

Edward A. Lee; Haiyang Zheng

2007-09-01T23:59:59.000Z

326

Acquisition and registration of aerial video imagery of urban traffic  

SciTech Connect

The amount of information available about urban traffic from aerial video imagery is extremely high. Here we discuss the collection of such video imagery from a helicopter platform with a low-cost sensor, and the post-processing used to correct radial distortion in the data and register it. The radial distortion correction is accomplished using a Harris model. The registration is implemented in a two-step process, using a globally applied polyprojective correction model followed by a fine scale local displacement field adjustment. The resulting cleaned-up data is sufficiently well-registered to allow subsequent straight-forward vehicle tracking.

Loveland, Rohan C [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

327

Elastic ice shells of synchronous moons: Implications for cracks on Europa and non-synchronous rotation of Titan  

E-Print Network (OSTI)

A number of synchronous moons are thought to harbor water oceans beneath their outer ice shells. A subsurface ocean frictionally decouples the shell from the interior. This decoupling has led to proposals that a weak tidal or atmospheric torque might cause the shell to rotate differentially with respect to the synchronously rotating interior. Applications along these lines have been made to Europa and Titan. As a result of centrifugal and tidal forces, the oceans of Europa and Titan have ellipsoidal figures whose long axes point toward the parent planet. Any rotation of the shell away from its equilibrium position induces strains thereby increasing its elastic energy. Thus the shell is coupled to the ocean by an elastic torque. Regarding Europa, it is shown that the tidal torque is far too weak to produce stresses that could fracture the ice shell, thus refuting an idea that has been widely advocated. An alternative formation mechanism for large cracks is proposed. Two years of Cassini RADAR observations of T...

Goldreich, Peter M

2009-01-01T23:59:59.000Z

328

Phase transition in a directed traffic flow network  

Science Journals Connector (OSTI)

The generic feature of traffic in a network of flowing electronic data packets is a phase transition from a stationary free-flow phase to a continuously growing congested nonstationary phase. In the most simple network of directed oriented square lattice we have been able to observe all crucial features of such flow systems having nontrivial critical behavior near the critical point of transition. The network here is in the shape of a square lattice and data packets are randomly posted with a rate ? at one side of the lattice. Each packet executes a directed diffusive motion toward the opposite boundary where it is delivered. Packets accumulated at a particular node form a queue and a maximum of m such packets randomly jump out of this node at every time step to its neighbors on a first-in-first-out basis. The phase transition occurs at ?c=m. The distribution of travel times through the system is found to have a log-normal behavior and the power spectrum of the load time series shows 1?f-like noise similar to the scenario of Internet traffic.

G. Mukherjee and S. S. Manna

2005-06-10T23:59:59.000Z

329

Capacity dimensioning for Air Traffic Management (ATM) services in a GEO satellite system with spot beams  

Science Journals Connector (OSTI)

The Communications Operating Concepts and Requirements (COCR) for Future Radio Systems (FRS) [EUROCONTROL/FAA, Technical report, May 2007] is a document produced jointly by Eurocontrol (the European organization for the safety of air navigation) and ... Keywords: Satellite air traffic management, queuing theory, traffic model

Eriza Hafid Fazli

2008-08-01T23:59:59.000Z

330

Introducing Propositional Logic and Queueing Theory with the InfoTraffic Interactive Learning Environments  

E-Print Network (OSTI)

Environments Ruedi Arnold Institute for Pervasive Computing ETH Zurich 8092 Zurich, Switzerland rarnold of propositional logic when you see traffic lights at intersections? Or do you reason about what the throughput of a street might be while being caught up in a traffic jam? Most people do not, we presume. But as Info

331

WreckWatch: Automatic Traffic Accident Detection and Notification with Smartphones  

Science Journals Connector (OSTI)

Traffic accidents are one of the leading causes of fatalities in the US. An important indicator of survival rates after an accident is the time between the accident and when emergency medical personnel are dispatched to the scene. Eliminating the time ... Keywords: cyber-physical systems, mobile cyber-physical systems, smartphones, traffic accident detection

Jules White; Chris Thompson; Hamilton Turner; Brian Dougherty; Douglas C. Schmidt

2011-06-01T23:59:59.000Z

332

Video Traffic Analysis of H.264/AVC and Extensions: Single-Layer Statistics  

E-Print Network (OSTI)

1 Video Traffic Analysis of H.264/AVC and Extensions: Single-Layer Statistics Geert Van der Auwera and Prasanth T. David and Martin Reisslein I. INTRODUCTION We examine the video traffic generated by the H.264/MPEG­4 Advanced Video Coding (H.264/AVC for brevity) standard [1], also known as H.264/MPEG-4 Part 10

Reisslein, Martin

333

A non-continuum approach to obtain a macroscopic model for the flow of traffic  

E-Print Network (OSTI)

by continuum models for the flow of traffic. The number of vehicles in a typical section of a freeway does not justify traffic being treated as a continuum. It is also important to recognize that the basic premises of kinetic theory are not appropriate...

Tyagi, Vipin

2007-09-17T23:59:59.000Z

334

Ascertaining Viability of WiFi based Vehicle-to-Vehicle Network for Traffic Information  

E-Print Network (OSTI)

Ascertaining Viability of WiFi based Vehicle-to-Vehicle Network for Traffic InformationDepartment of Computer Science 2Department of Civil Engineering Rutgers University, USA Rutgers University- Traffic). However, these solutions are plagued by prohibitive deployment and maintenance cost

Chen, Yuanzhu Peter

335

Towards a Cost Model for Network Traffic Murtaza Motiwala , Amogh Dhamdhere , Nick Feamster , Anukool Lakhina  

E-Print Network (OSTI)

Towards a Cost Model for Network Traffic Murtaza Motiwala , Amogh Dhamdhere , Nick Feamster@gatech.edu, anukool.lakhina@guavus.com ABSTRACT We develop a holistic cost model that operators can use to help evaluate the costs of various routing and peering decisions. Using real traffic data from a large carrier

California at San Diego, University of

336

Responding to the Unexpected: Traffic Research in the Wake of Bridge Collapse  

E-Print Network (OSTI)

effects of the I-35W Mississippi River bridge collapse (under review) · He, X.Z., S. E., Jabari and H. LiuResponding to the Unexpected: Traffic Research in the Wake of Bridge Collapse Henry Liu, Ph@umn.edu Nov. 20, 2007 #12;Planning for the Expected: Traffic Research after Bridge Reopening & Preliminary

Levinson, David M.

337

TRACKING ELEPHANT FLOWS IN INTERNET BACKBONE TRAFFIC WITH AN FPGA-BASED CACHE  

E-Print Network (OSTI)

TRACKING ELEPHANT FLOWS IN INTERNET BACKBONE TRAFFIC WITH AN FPGA-BASED CACHE Martin Zadnik an FPGA-friendly approach to track- ing elephant flows in network traffic. Our approach, Single Step elephant flows: con- servatively promoting potential elephants and evicting low- rate flows in LRU manner

Haddadi, Hamed

338

Balloon-borne air traffic management (ATM) as a precursor to space-based ATM  

Science Journals Connector (OSTI)

The International Space University—Balloon Air traffic control Technology Experiment (I-BATE11I-BATE: International Space University—Balloon Air traffic control Technology Experiment. ) has flown on board two stratospheric balloons and has tracked nearby aircraft by receiving their Automatic Dependent Surveillance-Broadcast (ADS-B) transmissions. Air traffic worldwide is facing increasing congestion. It is predicted that daily European flight volumes will more than double by 2030 compared to 2009 volumes. ADS-B is an air traffic management system being used to mitigate air traffic congestion. Each aircraft is equipped with both a GPS receiver and an ADS-B transponder. The transponder transmits an equipped aircraft's unique identifier, position, heading, and velocity once per second. The ADS-B transmissions can then be received by ground stations for use in traditional air traffic management. Airspace not monitored by these ground stations or other traditional means remains uncontrolled and poorly monitored. A constellation of space-based ADS-B receivers could close these gaps and provide global air traffic monitoring. By flying an ADS-B receiver on a stratospheric balloon, I-BATE has served as a precursor to a constellation of ADS-B-equipped Earth-orbiting satellites. From the ?30 km balloon altitude, I-BATE tracked aircraft ranging up to 850 km. The experiment has served as a proof of concept for space-based air traffic management and supports a technology readiness level 6 of space-based ADS-B reception.

Yuval Brodsky; Richard Rieber; Tom Nordheim

2012-01-01T23:59:59.000Z

339

LRRB Pavement Management SystemsTraffic Generator Managing Interaction Between Local  

E-Print Network (OSTI)

% of their energy from renewable sources by 2025. #12;LRRB Pavement Management SystemsTraffic Generator MN Wind Resource #12;LRRB Pavement Management SystemsTraffic Generator Wind Power (continued) · Advantage: · Energy Anderson, Stearns County Deb Bloom, City of Roseville Bruce Hasbargen, Lk of Woods Cty Steve Koehler, City

Minnesota, University of

340

SIGNIFICANCE OF TRAFFIC PRODUCED TURBULENCE FOR URBAN DISPERSION MODELING Petra Kastner-Klein  

E-Print Network (OSTI)

than with roofu (Figs. 1a, c). 3. CONCLUSIONS The traditional concentration scaling with a roofSIGNIFICANCE OF TRAFFIC PRODUCED TURBULENCE FOR URBAN DISPERSION MODELING Petra Kastner-Klein a wakes) and congested traffic (strongly interacting vehicle wakes). Kastner-Klein et al. (2002) applied

Fedorovich, Evgeni

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Low-Latency ECDSA Signature Verification A Road Towards Safer Traffic  

E-Print Network (OSTI)

crippling efficient movement inside and towards cities resulting in mounting travel times, fuel consumption running on high end CPUs and FPGAs. These implementations are far from cost-effective nor energy efficient caused by the rising traffic densities on our roads and in our cities. Traffic congestion is increasingly

342

A New Framework for the Integration, Analysis and Visualisation of Urban Traffic Data Within GIS  

E-Print Network (OSTI)

1 A New Framework for the Integration, Analysis and Visualisation of Urban Traffic Data Within GIS environment for the visualisation of urban traffic data within GIS. These concepts provide a relevant support Systems (GIS) have been adopted as a successful solution by a wide range of disciplines

Bargiela, Andrzej

343

On the Necessity of Traffic Shaping for PMU Measurement Data Streams  

E-Print Network (OSTI)

1 On the Necessity of Traffic Shaping for PMU Measurement Data Streams Miroslav Popovic, Peng Gao a PMU data transfer layer. Implementing traffic shaping within PMUs is essential for avoiding excessive distribution network. It needs to ensure the delivery of PMU data within stringent time delays and with minimal

Candea, George

344

Tuning the weights in WFQ schedulers for the maximization of carried best effort traffic  

E-Print Network (OSTI)

Maga~na, Daniel Morat´o, Pravin Varaiya Department of Electrical Engineering and Computer Sciences, a solution that could be applied to the huge variability of services and traffic types found in data networks effort traffic [9]. We show that even using a shortest-path routing protocol, a big improvement can

Varaiya, Pravin

345

U-134: Apache Traffic Server Host Header Processing Flaw Lets Remote Users  

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

4: Apache Traffic Server Host Header Processing Flaw Lets 4: Apache Traffic Server Host Header Processing Flaw Lets Remote Users Deny Service U-134: Apache Traffic Server Host Header Processing Flaw Lets Remote Users Deny Service March 27, 2012 - 7:00am Addthis PROBLEM: Apache Traffic Server Host Header Processing Flaw Lets Remote Users Deny Service PLATFORM: Versions prior to 3.0.4 and 3.1.3 ABSTRACT: A vulnerability was reported in Apache Traffic Server. A remote user can cause denial of service conditions. reference LINKS: SecurityTracker Alert ID: 1026847 CVE-2012-0256 Secunia Advisory SA48509 IMPACT ASSESSMENT: High Discussion: A remote user can send a request with a specially crafted 'Host' header value to trigger a heap allocation error and cause the target service to crash. Impact: A remote user can cause the target service to crash.

346

U-134: Apache Traffic Server Host Header Processing Flaw Lets Remote Users  

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

34: Apache Traffic Server Host Header Processing Flaw Lets 34: Apache Traffic Server Host Header Processing Flaw Lets Remote Users Deny Service U-134: Apache Traffic Server Host Header Processing Flaw Lets Remote Users Deny Service March 27, 2012 - 7:00am Addthis PROBLEM: Apache Traffic Server Host Header Processing Flaw Lets Remote Users Deny Service PLATFORM: Versions prior to 3.0.4 and 3.1.3 ABSTRACT: A vulnerability was reported in Apache Traffic Server. A remote user can cause denial of service conditions. reference LINKS: SecurityTracker Alert ID: 1026847 CVE-2012-0256 Secunia Advisory SA48509 IMPACT ASSESSMENT: High Discussion: A remote user can send a request with a specially crafted 'Host' header value to trigger a heap allocation error and cause the target service to crash. Impact: A remote user can cause the target service to crash.

347

Characteristics of Vector Surge Relays for Distributed Synchronous Generator Protection  

SciTech Connect

This work presented a detailed investigation on the performance characteristics if vector surge relays to detect islanding of distributed synchronous generators. A detection time versus active power imbalance curve is proposed to evaluate the relay performance. Computer simulations are used to obtain the performance curves. The concept of critical active power imbalance is introduced based on these curves. Main factors affecting the performance of the relays are analyzed. The factors investigated are voltage-dependent loads, load power factor, inertia constant of the generator, generator excitation system control mode, feeder length and R/X ratio as well as multi-distributed generators. The results are a useful guideline to evaluate the effectiveness of anti-islanding schemes based on vector surge relays for distributed generation applications.

Freitas, Walmir; Xu, Wilsun; Huang, Zhenyu; Vieira, Jose C.

2007-02-28T23:59:59.000Z

348

An Expectation-Maximization Method for Calibrating Synchronous Machine Models  

SciTech Connect

The accuracy of a power system dynamic model is essential to its secure and efficient operation. Lower confidence in model accuracy usually leads to conservative operation and lowers asset usage. To improve model accuracy, this paper proposes an expectation-maximization (EM) method to calibrate the synchronous machine model using phasor measurement unit (PMU) data. First, an extended Kalman filter (EKF) is applied to estimate the dynamic states using measurement data. Then, the parameters are calculated based on the estimated states using maximum likelihood estimation (MLE) method. The EM method iterates over the preceding two steps to improve estimation accuracy. The proposed EM method’s performance is evaluated using a single-machine infinite bus system and compared with a method where both state and parameters are estimated using an EKF method. Sensitivity studies of the parameter calibration using EM method are also presented to show the robustness of the proposed method for different levels of measurement noise and initial parameter uncertainty.

Meng, Da; Zhou, Ning; Lu, Shuai; Lin, Guang

2013-07-21T23:59:59.000Z

349

Non-synchronous control of self-oscillating resonant converters  

DOE Patents (OSTI)

A self-oscillating switching power converter has a controllable reactance including an active device connected to a reactive element, wherein the effective reactance of the reactance and the active device is controlled such that the control waveform for the active device is binary digital and is not synchronized with the switching converter output frequency. The active device is turned completely on and off at a frequency that is substantially greater than the maximum frequency imposed on the output terminals of the active device. The effect is to vary the average resistance across the active device output terminals, and thus the effective output reactance, thereby providing converter output control, while maintaining the response speed of the converter.

Glaser, John Stanley (Niskayuna, NY); Zane, Regan Andrew (Scotia, NY)

2002-01-01T23:59:59.000Z

350

Fr\\'echet means of curves for signal averaging and application to ECG data analysis  

E-Print Network (OSTI)

Signal averaging is the process that consists in computing a mean shape from a set of noisy signals. In the presence of geometric variability in time in the data, the usual Euclidean mean of the raw data yields a mean pattern that does not reflect the typical shape of the observed signals. In this setting, it is necessary to use alignment techniques for a precise synchronization of the signals, and then to average the aligned data to obtain a consistent mean shape. In this paper, we study the numerical performances of Fr\\'echet means of curves which are extensions of the usual Euclidean mean to spaces endowed with non-Euclidean metrics. This yields a new algorithm for signal averaging without a reference template. We apply this approach to the estimation of a mean heart cycle from ECG records.

Bigot, Jérémie

2011-01-01T23:59:59.000Z

351

Modeling, analysis and comparison of TSR and OTC methods for MPPT and power smoothing in permanent magnet synchronous generator-based wind turbines  

Science Journals Connector (OSTI)

Abstract This paper presents a small signal modeling of a direct-driven permanent magnet synchronous generator (PMSG) based on wind turbine which is connected to the grid via back-to-back converters. The proposed small signal model includes two maximum power point tracking (MPPT) controllers: tip speed ratio (TSR) control and optimal torque control (OTC). These methods are analytically compared to illustrate MPPT and power smoothing capability. Then, to compare the MPPT and power smoothing operation of the mentioned methods, simulations are performed in MATLAB/Simulink software. From the simulation results, OTC is highly efficient in power smoothing enhancement and has clearly good performance to extract maximum power from wind; however, TSR control has definitely fast responses to wind speed variations with the expense of higher fluctuations due to its non-minimum phase characteristic.

M. Nasiri; J. Milimonfared; S.H. Fathi

2014-01-01T23:59:59.000Z

352

Novel Synchronization of Pulse-Coupled Oscillators on Time-Varying Networks  

E-Print Network (OSTI)

In this article I investigate the novel synchronization behaviors of evolving pulse-coupled oscillator networks. Unlike previous models, the time-varying mechanism is inspired by neural network development, where seldom used links die out while heavily used ones get strengthened. Even small network with all-to-all connected topology can have exotic dynamics under this circumstance. The oscillators can coevolve with the network, and finally form a co-synchronized pair. Or if we only allow a fraction of oscillators to send pulses every time, the oscillators can synchronize with the network remain chaotic.

Yuanzhao Zhang

2014-01-06T23:59:59.000Z

353

Generation-based memory synchronization in a multiprocessor system with weakly consistent memory accesses  

DOE Patents (OSTI)

In a multiprocessor system, a central memory synchronization module coordinates memory synchronization requests responsive to memory access requests in flight, a generation counter, and a reclaim pointer. The central module communicates via point-to-point communication. The module includes a global OR reduce tree for each memory access requesting device, for detecting memory access requests in flight. An interface unit is implemented associated with each processor requesting synchronization. The interface unit includes multiple generation completion detectors. The generation count and reclaim pointer do not pass one another.

Ohmacht, Martin

2014-09-09T23:59:59.000Z

354

Fermilab | Traffic Safety at Fermilab | Questions & Answers  

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

Questions & Answers Questions & Answers I received an e-mail stating that I have received a traffic citation, but I did not. What do I do? The email I received states that I have five working days after receiving a citation to appeal, what does that mean? I filled out the citation appeal form and submitted it, what happens next? I missed the five day deadline, what do I do now? I lost my appeal and disagree with the results, what do I do now? I lost my appeal and received disciplinary action, what do I do now? I received a citation but did not sign it because I disagreed with the charge and that, without my signature, it would not be considered a valid citation. I received an email saying that it was a violation. Why did this happen? Why should I appeal a citation? Employees never win anyway.

355

An interferometric signal demodulation scheme using zero crossings and an asynchronous clock  

E-Print Network (OSTI)

to recover P, . In many systems such as the fiber-optic gyroscope, we desire to measure Tz ? Tr to a resolution of the level of zero crossing jitter which is typically about lns. With this resolution, we would be able to measure small magnitude signals... which would cause changes in the zero crossings of the interferometric signal much less than lns. Clearly, unless the synchronous clock pulse period is reduced to around lns, this is not possible. An alternative is to use an asynchronous clock scheme...

McCain, Dennis M.

2012-06-07T23:59:59.000Z

356

Empirical Features of Spontaneous and Induced Traffic Breakdowns in Free Flow at Highway Bottlenecks  

E-Print Network (OSTI)

Based on an empirical study of real field traffic data measured in 1996--2014 through road detectors installed on German freeways, we reveal physical features of empirical nuclei for spontaneous traffic breakdown in free flow at highway bottlenecks. It is shown that the source of a nucleus for traffic breakdown is the solely difference between empirical spontaneous and induced traffic breakdowns at a highway bottleneck. Microscopic traffic simulations with a stochastic traffic flow model in the framework of three-phase theory explain the empirical findings. It turns out that in the most cases, a nucleus for empirical spontaneous traffic breakdown occurs through an interaction of one of waves in free flow with an empirical permanent speed disturbance localized at a highway bottleneck. The wave is a localized structure in free flow, in which the total flow rate is larger and the speed averaged across the highway is smaller than outside the wave. The waves in free flow appear due to oscilations in the percentage...

Kerner, Boris S; Klenov, Sergey L; Rehborn, Hubert; Leibel, Michael

2015-01-01T23:59:59.000Z

357

Parameter Analysis of the VPIN (Volume synchronized Probability of Informed Trading) Metric  

SciTech Connect

VPIN (Volume synchronized Probability of Informed trading) is a leading indicator of liquidity-induced volatility. It is best known for having produced a signal more than hours before the Flash Crash of 2010. On that day, the market saw the biggest one-day point decline in the Dow Jones Industrial Average, which culminated to the market value of $1 trillion disappearing, but only to recover those losses twenty minutes later (Lauricella 2010). The computation of VPIN requires the user to set up a handful of free parameters. The values of these parameters significantly affect the effectiveness of VPIN as measured by the false positive rate (FPR). An earlier publication reported that a brute-force search of simple parameter combinations yielded a number of parameter combinations with FPR of 7percent. This work is a systematic attempt to find an optimal parameter set using an optimization package, NOMAD (Nonlinear Optimization by Mesh Adaptive Direct Search) by Audet, le digabel, and tribes (2009) and le digabel (2011). We have implemented a number of techniques to reduce the computation time with NOMAD. Tests show that we can reduce the FPR to only 2percent. To better understand the parameter choices, we have conducted a series of sensitivity analysis via uncertainty quantification on the parameter spaces using UQTK (Uncertainty Quantification Toolkit). Results have shown dominance of 2 parameters in the computation of FPR. Using the outputs from NOMAD optimization and sensitivity analysis, We recommend A range of values for each of the free parameters that perform well on a large set of futures trading records.

Song, Jung Heon; Wu, Kesheng; Simon, Horst D.

2014-03-01T23:59:59.000Z

358

Modelling and design of an eddy current coupling for slip-synchronous permanent magnet wind generators.  

E-Print Network (OSTI)

??ENGLISH ABSTRACT: Slip-synchronous permanent magnet generators (SS-PMG) is a recently proposed direct-grid connected direct-drive generator topology for wind power applications. It combines a permanent magnet… (more)

Mouton, Zac

2013-01-01T23:59:59.000Z

359

Multipolar permanent-magnet synchronous generators intended for wind power plants  

Science Journals Connector (OSTI)

The analytical method of calculating two-dimensional magnetic fields in the active section of permanent-magnet synchronous electrical rotating machines, as applied to their use in the wind energy industry, has be...

L. K. Kovalev; K. L. Kovalev; Ye. Ye. Tulinova; N. S. Ivanov

2012-12-01T23:59:59.000Z

360

Hack-proof synchronization protocol for multi-player online games  

Science Journals Connector (OSTI)

Synchronization protocols based on “dead-reckoning” are vulnerable to a popular type of cheat called speed-hack. A speed-hack helps a cheater to gain unfair advantages ... dead-reckoning protocol that is invulner...

Yeung Siu Fung; John C. S. Lui

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Gaussian radial basis function neural network controller of a synchronous reluctance motor in electric motorcycle applications  

Science Journals Connector (OSTI)

In this article, a sliding mode control (SMC) design based on a Gaussian radial basis function neural network (GRBFNN) is proposed for the synchronous reluctance motor (SynRM) system in electrical motorcycle a...

Chien-An Chen; Huann-Keng Chiang; Wen-Bin Lin

2010-12-01T23:59:59.000Z

362

Optimal Methodology for Synchronized Scheduling of Parallel Station Assembly with Air Transportation  

E-Print Network (OSTI)

We present an optimal methodology for synchronized scheduling of production assembly with air transportation to achieve accurate delivery with minimized cost in consumer electronics supply chain (CESC). This problem was ...

Ganesan, Viswanath Kumar

363

Recording speech articulation in dialogue: Evaluating a synchronized double electromagnetic articulography setup  

E-Print Network (OSTI)

is the severity of electromagnetic interference between the two machines. Our results suggest that the synchronization method used yields an accuracy of approximately 1 ms. Electromagnetic interference was derived

Edinburgh, University of

364

PHYSICAL REVIEW E 84, 016213 (2011) Isochronal chaos synchronization of delay-coupled optoelectronic oscillators  

E-Print Network (OSTI)

-coupled optoelectronic oscillators Lucas Illing,* Cristian D. Panda, and Lauren Shareshian Department of Physics, Reed; published 19 July 2011) We study experimentally chaos synchronization of nonlinear optoelectronic true for optical and optoelectronic devices that operate at technologically relevant radio frequen

Illing, Lucas

365

Integrating the Army Geospatial Enterprise : synchronizing geospatial-intelligence to the dismounted soldier  

E-Print Network (OSTI)

The Army's Geospatial Enterprise (AGE) has an emerging identity and value proposition arising from the need to synchronize geospatial information activities across the Army in order to deliver value to military decision ...

Richards, James E., S.M. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

366

Contraction and partial contraction : a study of synchronization in nonlinear networks  

E-Print Network (OSTI)

This thesis focuses on the study of collective dynamic behaviors, especially the spontaneous synchronization behavior, of nonlinear networked systems. We derives a body of new results, based on contraction and partial ...

Wang, Wei, 1972 Oct. 17-

2005-01-01T23:59:59.000Z

367

Optical phase dynamics in mutually coupled diode laser systems exhibiting power synchronization  

E-Print Network (OSTI)

We probe the physical mechanism behind the known phenomenon of power synchronization of two diode lasers that are mutually coupled via their delayed optical fields. In a diode laser, the amplitude and the phase of the optical field are coupled by the so-called linewidth enhancement factor, $\\alpha$. In this work, we explore the role of optical phases of the electric fields in amplitude (and hence power) synchronization through $\\alpha$ in such mutually delay-coupled diode laser systems. Our numerical results show that the synchronization of optical phases drives the powers of lasers to synchronized death regimes. We also find that as $\\alpha$ varies for different diode lasers, the system goes through a sequence of in-phase amplitude-death states. Within the windows between successive amplitude-death regions, the cross-correlation between the field amplitudes exhibits a universal power-law behaviour with respect to $\\alpha$.

Vishwa Pal; Awadhesh Prasad; R Ghosh

2011-11-10T23:59:59.000Z

368

A dynamic vehicle routing problem based on real-time traffic information  

Science Journals Connector (OSTI)

We treat the dynamic vehicle routing problem with time windows (DVRPTW) in the context of real-time traffic information. We integrate traffic information obtained in real time to change the speed profile according to the accidents on the road network (congestion, etc.). The travel times are based on a time-dependent model in which the travel speeds are step functions. This model is enriched with an exponential smoothing function able to calculate the forecasted speed. The analysis of the results of these experiments shows that our method with real-time traffic information provides a good performance, a better robustness against a simple model with time dependent travel time.

Xin Zhao; Gilles Goncalves; Remy Dupas

2010-01-01T23:59:59.000Z

369

Post processing large integer programming problems in air traffic flow management  

E-Print Network (OSTI)

and Infor- mation Sciences, School of Business Administration, University of Houston, Houston, TX, 1993. [6] M. P. Helme, K. S. Lindsay, and S. V. Massimini, "Opti&nization Models for Air Traffic Flow IVIanagcmcnt: Ncw Formulations, " MTR 92W0000152..., The IVIITRE Corporation, Mclean, VA, 1992. [7] K. S. Lin&lsay, "Traffic flow modeling with the Time Assignment Model, " MTR 93W0000119, Thc lVIITRE Corporation, Mclean, VA, 1993. [8] K. S. Lindsay, E. A. Boyd and R. Burlingame, "Traffic Flow Management...

Gangadharan, Rajesh

2012-06-07T23:59:59.000Z

370

Stimulating Transportation Policy Making Through an Effective Traffic Information Communication Mechanism: The Case of Athens  

Science Journals Connector (OSTI)

The availability of accurate, up-to-date and timely transport and traffic information has become nowadays a crucial issue for decision makers and traffic planers, who wish to plan sustainable transport systems. The paper presents an online platform, the Observatory for Public Authorities and Transport Planners, providing traffic and transport aggregated data and corresponding indices to policy makers and transport planners, enabling the review of transport networks performance, the assessment of scenarios and the formulation of investment plans in order to create an effective and sustainable transportation system in their area.

Yannis Tyrinopoulos; Anna Kortsari; Maria Chatziathanasiou

2012-01-01T23:59:59.000Z

371

Requirements for security signalling  

SciTech Connect

There has been some interest lately in the need for ``authenticated signalling``, and the development of signalling specifications by the ATM Forum that support this need. The purpose of this contribution is to show that if authenticated signalling is required, then supporting signalling facilities for directory services (i.e. key management) are also required. Furthermore, this contribution identifies other security related mechanisms that may also benefit from ATM-level signalling accommodations. For each of these mechanisms outlined here, an overview of the signalling issues and a rough cut at the required fields for supporting Information Elements are provided. Finally, since each of these security mechanisms are specified by a number of different standards, issues pertaining to the selection of a particular security mechanism at connection setup time (i.e. specification of a required ``Security Quality of Service``) are also discussed.

Pierson, L.G.; Tarman, T.D.

1995-02-05T23:59:59.000Z

372

For decades, traffic safety improvements have relied primarily upon engineering and enforcement solutions. If we are limited to those options, further  

E-Print Network (OSTI)

Traffic Safety Culture For decades, traffic safety improvements have relied primarily upon about driving ­ changing our traffic safety culture. A survey by the Center for Transportation Safety on the roads than drivers nationwide, as measured in the 2010 Traffic Safety Culture Index published by the AAA

373

Methods, systems and apparatus for synchronous current regulation of a five-phase machine  

DOE Patents (OSTI)

Methods, systems and apparatus are provided for controlling operation of and regulating current provided to a five-phase machine when one or more phases has experienced a fault or has failed. In one implementation, the disclosed embodiments can be used to synchronously regulate current in a vector controlled motor drive system that includes a five-phase AC machine, a five-phase inverter module coupled to the five-phase AC machine, and a synchronous current regulator.

Gallegos-Lopez, Gabriel; Perisic, Milun

2012-10-09T23:59:59.000Z

374

Medical Signal Searching  

E-Print Network (OSTI)

The PAA and DFT representations of an ECG signal composed ofAggregate Approximation (PAA) [KCP01], Discrete Fourierpower of distance computations. PAA and DFT are perhaps the

Woodbridge, Jonathan Scott

2012-01-01T23:59:59.000Z

375

Sub-Synchronous Resonance damping via Doubly Fed Induction Generator  

Science Journals Connector (OSTI)

Abstract Interests of low frequency oscillation damping with the Doubly Fed Induction Generator (DFIG) has been increased recently. In addition, it is widely accepted that, the Sub-Synchronous Resonance (SSR) is another unfavorable dynamical phenomenon in power systems. In this study, the implementation of the DFIG in SSR mitigation will be investigated. The IEEE second benchmark model aggregated with a DFIG based wind farm is employed as the case study. Two different control methodologies are proposed: a Fuzzy Logic Damping Controller (FLDC) and a conventional damping controller (CDC) that are added to the main control loop of the DFIG in order to damp the SSR. To validate the results of SSR suppression via DFIG, several case studies are introduced based on changing the operation point of the system and duration of the fault. It has been shown that the DFIG can damp the SSR through both proposed methodologies, but when the system operating point or fault duration is changed, the FLDC can present a cost-effective solution for SSR damping. The Fast Fourier Transform (FFT), simulation results, and a method based on performance index (PI) are conducted to compare two controllers through various cases in Matlab.

Maghsoud Mokhtari; Javad Khazaei; Daryoosh Nazarpour

2013-01-01T23:59:59.000Z

376

V-201: Cisco Intrusion Prevention System SSP Fragmented Traffic Denial of  

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

1: Cisco Intrusion Prevention System SSP Fragmented Traffic 1: Cisco Intrusion Prevention System SSP Fragmented Traffic Denial of Service Vulnerability V-201: Cisco Intrusion Prevention System SSP Fragmented Traffic Denial of Service Vulnerability July 19, 2013 - 6:00am Addthis PROBLEM: Several vulnerabilities were reported in Cisco Intrusion Prevention System PLATFORM: Cisco ASA 5500-X Series Adaptive Security Appliances Cisco Intrusion Prevention System (IPS) 7.1 ABSTRACT: A vulnerability in the implementation of the code that processes fragmented traffic could allow an unauthenticated, remote attacker to cause the Analysis Engine process to become unresponsive or cause the affected system to reload. REFERENCE LINKS: Secunia Advisory SA54246 SecurityTracker ID: 1028806 Cisco Advisory ID: cisco-sa-20130717-ips CVE-2013-1218

377

E-Print Network 3.0 - air traffic control facilities Sample Search...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: air traffic control facilities Page: << < 1 2 3 4 5 > >> 1 Table of Contents 1 Introduction Summary: to...

378

Energy Saving Scheme Based On Traffic Forwarding For Optical Fiber Access Networks  

Science Journals Connector (OSTI)

We report on an energy saving block that regroups and powers off OLTs during low traffic periods, resulting in energy savings up to 87,5% in the central office of optical access...

Arturo Rodé s Ló pez, G; Estaran, J; Vegas Olmos, J J; Tafur Monroy, I

379

A Hybrid Energy Saving Mechanism for VoIP Traffic with Silence Suppression  

Science Journals Connector (OSTI)

In this paper, we propose a hybrid energy saving mechanism (HESM) that combines power-saving mode (PSM) for real-time traffic ... silence suppression. The proposed method uses power saving class (PSC) II during t...

Jung-Ryun Lee

2007-01-01T23:59:59.000Z

380

Modelling the Effects of Urban Morphology, Traffic and Pedestrian Dynamics on Students’ Exposure to Air Pollution  

Science Journals Connector (OSTI)

The United Nations Environment Programme stated that the human exposure to air pollutants primarily emitted by road traffic is ... tracked and profiled with a GPS. Ambient air pollutant concentrations of CO and P...

Jorge Humberto Amorim; Joana Valente…

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Traffic Congestion Mitigation as an Emissions Reduction Strategy Alexander York Bigazzi  

E-Print Network (OSTI)

goals, a better understanding of the impacts of traffic congestion on motor vehicle emissions is needed, such as electric and gas- electric hybrid vehicles. But travel volume is also a key consideration for the total

Bertini, Robert L.

382

Airport surface traffic optimization and simulation in the presence of uncertainties  

E-Print Network (OSTI)

Surface traffic congestion causes significant taxi delays and long queues for takeoffs at busy airports, increasing operational and environmental costs. These impacts may be mitigated by optimizing runway and taxiway ...

Lee, Hanbong

2014-01-01T23:59:59.000Z

383

System-Optimal Routing of Traffic Flows with User Constraints in Networks with Congestion  

E-Print Network (OSTI)

The design of route-guidance systems faces a well-known dilemma. The approach that theoretically yields the system-optimal traffic pattern may discriminate against some users, for the sake of favoring ...

Jahn, Olaf

2004-12-10T23:59:59.000Z

384

Fact #668: March 28, 2011 Time Wasted Due to Traffic Congestion  

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

According to the Texas Transportation Institute's latest study on traffic congestion, all urban areas have experienced increased congestion in the seventeen-year period from 1982 to 2009, but...

385

A tractable optimization framework for Air Traffic Flow Management addressing fairness, collaboration and stochasticity  

E-Print Network (OSTI)

We propose a tractable optimization framework for network Air Traffic Flow Management (ATFM) with an eye towards the future. The thesis addresses two issues in ATFM research: a) fairness and collaboration amongst airlines; ...

Gupta, Shubham, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

386

Model Reference Adaptive Control Framework for Real Time Traffic Management under Emergency Evacuation  

E-Print Network (OSTI)

to guide the real world traffic flow to evolve towards the desired states. Simulation studies provided, including nuclear plant crisis, hurricane, flooding, and fire, etc. For detailed discussions regarding

Ban, Xuegang "Jeff"

387

Childhood Cancer and Traffic-Related Air Pollution Exposure in Pregnancy and Early Life  

E-Print Network (OSTI)

exposure to traffic and nitrogen dioxide. Epidemiology 16(in Taiwan using nitrogen dioxide as an air pollutant marker.benzene and modeled nitrogen dioxide (NO 2 ) as a marker of

2013-01-01T23:59:59.000Z

388

Evolution of domestic traffic and fares at the top 200 US airports between 1990 and 2008  

E-Print Network (OSTI)

The main objective of this thesis is to analyze the evolution of domestic Origin- Destination (O-D) traffic and fares at the Top 200 airports in the United States between 1990 and 2008. The impetus behind this research is ...

Ben Abda, Mehdi

2010-01-01T23:59:59.000Z

389

Study of the impact of rainfall on freeway traffic flow in Southeast China  

Science Journals Connector (OSTI)

The purpose of this paper is to quantify the impact of rainfall on freeway traffic flow using toll station data and precipitation data. Five rainfall categories were classified based on precipitation intensity. Hourly traffic volume and travel times were retrieved and analysed in three spatial scales: at toll stations, on freeway sections between two toll stations, and on freeway corridors composed of multiple sections. Travel times for passenger cars in each rainfall category were studied and the impact of rainfall on traffic volume and travel time was quantified. The non-parametric Kruskal-Wallis test was performed to check the significance of difference among various categories.Calculated traffic volume reduction coefficients and travel time incremental coefficients for each rainfall category were compared with existing research results, which showed obvious differences. Potential causes are discussed to explain the discrepancy in coefficient values.

Saini Yang; Jiayuan Ye; Xuechi Zhang; Hao Liu

2012-01-01T23:59:59.000Z

390

Real-time analysis of aggregate network traffic for anomaly detection  

E-Print Network (OSTI)

The frequent and large-scale network attacks have led to an increased need for developing techniques for analyzing network traffic. If efficient analysis tools were available, it could become possible to detect the attacks, anomalies...

Kim, Seong Soo

2005-08-29T23:59:59.000Z

391

Fact #776: April 22, 2013 Fuel Savings from Attempts to Alleviate Traffic Congestion  

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

Despite the news that traffic congestion wasted nearly 2.9 billion gallons of fuel in 2011, fuel savings were achieved due to efforts to combat congestion. According to the Texas Transportation...

392

Microsoft Word - Cindy from Jim Prybylski office_notes on traffic...  

National Nuclear Security Administration (NNSA)

am - 7 am. * Typical work week is Mon-Thur; therefore, traffic volumes on Fri, Sat, and Sun dependent on projects. Most of personnel likely associated with WSI (security) and...

393

Impact of urban traffic and climate change on water quality from road runoff.  

E-Print Network (OSTI)

??Urban traffic and climate change are two phenomena that have the potential to degrade urban water quality by influencing the build-up and wash-off of pollutants,… (more)

Mahbub, S. M. Parvez Bin

2011-01-01T23:59:59.000Z

394

Carbon monoxide and carbon dioxide concentrations in Santiago de Chile associated with traffic emissions  

Science Journals Connector (OSTI)

CO/CO2 ratios have been measured in different locations of Santiago de Chile city. Measurements were carried out in a tunnel (prevailing emissions from cars with catalytic converter) and close to heavy traffic st...

María A. Rubio; Irene Fuenzalida…

2010-03-01T23:59:59.000Z

395

Assessing the Potential of Using Traffic Simulation Model Results for Evaluating Automatic Incident Detection Algorithms  

E-Print Network (OSTI)

Assessing the Potential of Using Traffic Simulation Model Results for Evaluating Automatic Incident of such a test-bed would be the ability to incorporate synthetic data produced by a simulation model since

Hellinga, Bruce

396

Stochastic Traffic Engineering for Live Audio/Video Delivering over Energy-Limited Wireless Access Networks  

Science Journals Connector (OSTI)

We study the Stochastic Traffic Engineering (STE) problem arising from the support ... demanding live (e.g., real time) audio/video applications over unreliable IP-over-wireless...stochastic optimization problem,...

Nicola Cordeschi; Tatiana Patriarca; Enzo Baccarelli

2011-01-01T23:59:59.000Z

397

BICYCLE SAFETY--WHAT YOU NEED TO KNOW Obey all traffic laws while riding your bike.  

E-Print Network (OSTI)

942012 BICYCLE SAFETY--WHAT YOU NEED TO KNOW · Obey all traffic laws while riding your bike. · According the California Vehicle Code, every person riding a bicycle upon a street or highway has all

Straight, Aaron

398

An investigative study of automobile traffic accidents utilizing biorhythm theory for predictive value  

E-Print Network (OSTI)

AN INVESTIGATIVE STUDY OF AUTOMOBILE TRAFFIC ACCT. DENTS UTILIZING BIORHYTHM THEORY FOR PREDICTIVE VALUE A Thesis by OSCAR HENRY EGLY JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE May 1977 Major Subject: Industrial Engineering AN INVESTIGATIVE STUDY OF AUTOMOBILE TRAFFIC ACCIDENTS UTILIZING BIORHYTHM THEORY FOR PREDICTIVE VALUE A Thesis by OSCAR HENRY EGLY JR. Approved as to style and content...

Egly, Oscar Henry

1977-01-01T23:59:59.000Z

399

Enhanced synchronization in an array of spin torque nano oscillators in the presence of oscillating external magnetic field  

E-Print Network (OSTI)

We demonstrate that the synchronization of an array of electrically coupled spin torque nano-oscillators (STNO) modelled by Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equation can be enhanced appreciably in the presence of a common external microwave magnetic field. The applied microwave magnetic field stabilizes and enhances the regions of synchronization in the parameter space of our analysis, where the oscillators are exhibiting synchronized oscillations thereby emitting improved microwave power. To characterize the synchronized oscillations we have calculated the locking range in the domain of external source frequency.

B. Subash; V. K. Chandrasekar; M. Lakshmanan

2014-09-15T23:59:59.000Z

400

Enhanced synchronization in an array of spin torque nano oscillators in the presence of oscillating external magnetic field  

E-Print Network (OSTI)

We demonstrate that the synchronization of an array of electrically coupled spin torque nano-oscillators (STNO) modelled by Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equation can be enhanced appreciably in the presence of a common external microwave magnetic field. The applied microwave magnetic field stabilizes and enhances the regions of synchronization in the parameter space of our analysis, where the oscillators are exhibiting synchronized oscillations thereby emitting improved microwave power. To characterize the synchronized oscillations we have calculated the locking range in the domain of external source frequency.

B. Subash; V. K. Chandrasekar; M. Lakshmanan

2014-12-23T23:59:59.000Z

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Separate determination of PM10 emission factors of road traffic for tailpipe emissions and emissions from abrasion and resuspension processes  

Science Journals Connector (OSTI)

Little is known about the relevance of mechanically produced particles of road traffic from abrasion and resuspension processes in relation to the exhaust pipe particles. In this paper, emission factors of PM10 and PM1 for light and heavy-duty vehicles were derived for different representative traffic regimes from concentration differences of particles and nitrogen oxides (NOx) in ambient air upwind and downwind of busy roads, or alternatively of kerbsides and nearby background sites. Hereby, PM1 was interpreted as direct exhaust emissions and PM10-PM1 as mechanically produced emissions from abrasion and resuspension processes. The results show that abrasion and resuspension processes represent a significant part of the total primary PM10 emissions of road traffic. At sites with relatively undisturbed traffic flow they are in the same range as the exhaust pipe emissions. At sites with disturbed traffic flow due to traffic lights, emissions from abrasion/resuspension are even higher than those from the exhaust pipes.

Robert Gehrig; Matz Hill; Brigitte Buchmann; David Imhof; Ernest Weingartner; Urs Baltensperger

2004-01-01T23:59:59.000Z

402

Page not found | Department of Energy  

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

41 - 22250 of 28,905 results. 41 - 22250 of 28,905 results. Article Florida County Seeks to Reduce Emissions and Improve Traffic St. Johns County, Florida is tackling its traffic-timing problem with a little help from an Energy Department Energy Efficiency and Conservation Block grant. The county will use the grant to improve traffic flow by re-synchronizing signals at five major road segments. In total, 23 traffic signals will be retimed and synchronized, resulting in lower fuel consumption, shorter travel times, increased travel speed, less stopping and less engine idling. http://energy.gov/articles/florida-county-seeks-reduce-emissions-and-improve-traffic Article Festival Re-Cap: Energy Bikes, Levitated Trains and 3D Virtual Rides Office of Science Director Dr. William Brinkman recaps the USA Science and

403

Modelling and simulation of faults in synchronous generators for robust numerical protection  

Science Journals Connector (OSTI)

When an internal fault occurs in a synchronous generator, the symmetry between the parallel paths of the winding is broken and different currents flow in them, due to unsymmetrical magnetic linkage between the stator windings. The aim of this paper is to present a simulation model to investigate the effect of internal fault on the parallel path currents of a large synchronous generator using direct phase quantities. This model is based on a modified winding function approach where the machine inductances are calculated directly from the machine winding distribution using machine electrical parameters instead of the geometrical ones. The simulation results for different cases of internal faults in salient-pole and non-salient-pole synchronous machines have been obtained. Salient-pole synchronous generator has wave winding distribution while the non-salient-pole generator has lap winding arrangement. Due to different stator winding arrangements, the two machines have been simulated individually. By using the simulated fault data, a suitable numerical protection scheme for synchronous generators can be developed.

Amrita Sinha; D.N. Vishwakarma; R.K. Srivastava

2012-01-01T23:59:59.000Z

404

Research Article Signaling Threat  

E-Print Network (OSTI)

Research Article Signaling Threat How Situational Cues Affect Women in Math, Science and organization,canmake potentialtargetsvulnerabletosocial identity threat.Objective and subjective measuresofidentity threat were collected from male and female math, science, and engineering (MSE) majors who watched

Gross, James J.

405

Traffic Trends: Drivers and Measures of Cost-Effective and Energy-Efficient Technologies and Architectures for Backbone Optical Networks  

Science Journals Connector (OSTI)

We examine trends and characteristics of the traffic, systems, and architectures of backbone optical networks to illustrate baselines, future requirements, and possible metrics to...

Korotky, Steven K

406

Management processes in U.S. air traffic management modernization : a study of global navigation satellite system development  

E-Print Network (OSTI)

This thesis investigates organization and management issues associated with the Federal Aviation Administration's (FAA) efforts to modernize the nation's Air Traffic Management (ATM) system. Focus is placed specifically ...

Sandvig, John H.

1994-01-01T23:59:59.000Z

407

Mutual synchronization of two stacks of intrinsic Josephson junctions in cuprate superconductors  

SciTech Connect

Certain high-T{sub c} cuprate superconductors, which naturally realize a stack of Josephson junctions, thus can be used to generate electromagnetic waves in the terahertz region. A plate-like single crystal with 10{sup 4} junctions without cavity resonance was proposed to achieve strong radiation. For this purpose, it is required to synchronize the Josephson plasma oscillation in all junctions. In this work, we propose to use two stacks of junctions shunted in parallel to achieve synchronization. The two stacks are mutually synchronized in the whole IV curve, and there is a phase shift between the plasma oscillation in the two stacks. The phase shift is nonzero when the number of junctions in different stacks is the same, while it can be arbitrary when the number of junctions is different. This phase shift can be tuned continuously by applying a magnetic field when all the junctions are connected by superconducting wires.

Lin, Shi-Zeng [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2014-05-07T23:59:59.000Z

408

Synchronization of coupled single-electron circuits based on nanoparticles and tunneling junctions  

Science Journals Connector (OSTI)

We explore theoretically the synchronization properties of a device composed of coupled single-electron circuits whose building blocks are nanoparticles interconnected with tunneling junctions. Elementary nanoscillators can be achieved by a single-electron tunneling cell where the relaxation oscillation is induced by the tunneling. We develop a model to describe the synchronization of the nanoscillators and present sample calculations to demonstrate that the idea is feasible and could readily find applications. Instead of considering a particular system we analyze the general properties of the device making use of an ideal model that emphasizes the essential characteristics of the concept. We define an order parameter for the system as a whole and demonstrate phase synchronization for sufficiently high values of the coupling resistance.

Javier Cervera; José A. Manzanares; Salvador Mafé

2009-01-01T23:59:59.000Z

409

Numerical prediction of the effect of traffic lights on the vehicle noise at urban street intersections  

Science Journals Connector (OSTI)

Intersections of urban streets are particularly noisy locations due to the addition of the noise from vehicles at different streets a long period of noise emission from queuing vehicles with traffic lights in red and the noise from accelerating vehicles. Besides the traffic lights impose a modulation in the passage of the vehicles so that the subsequent noise variability along time contributes to increase the annoyance degree. This paper presents a code especially developed to simulate both the spatial and temporal distribution of the sound pressure levels induced by the vehicle traffic in street intersections. The algorithm combines a traffic model with vehicles in dynamic motion through the domain with a model for sound propagation based on the method of virtual images in which the determination of the location of the successive image sources was reduced to a reference horizontal plane. Sound emission from each vehicle was established according to the Harmonoise guidelines. After verifying the code predictions by comparison with measurements at several street intersections the method was applied systematically to investigate the effect of varying the regulation parameters of the traffic lights on the Leq and L10 distributions for some particular cases.

Jorge Parrondo; Ruben Zurita; Jose A. Corrales; Joaquin Fernandez

2008-01-01T23:59:59.000Z

410

Macroscopic traffic flow modelling and ramp metering control using Matlab/Simulink  

Science Journals Connector (OSTI)

Computer programs to simulate traffic flow offer an opportunity to evaluate new strategies for reducing delays, congestion, fuel consumption and pollution. This paper describes a Statistical Traffic Model or STM, which is based on accepted macro-modelling concepts, such as the conservation of vehicles and the fundamental traffic diagram. In this case, the model is constructed using the well known Matlab/Simulink™ software package, so providing an integrated approach for data processing, graphical presentation of data, control system design and macroscopic simulation in one straightforward to use, widely available environment. To illustrate the methodology, the STM is applied to a section of the M3/M27 Ramp Metering Pilot Scheme in the UK. This Highways Agency sponsored project, based in the Southampton area, utilises traffic lights at the on-ramp entrances to regulate access to the main carriageway of the motorway, in an attempt to maintain flow close to the capacity. The paper utilises the model to help design a locally-coordinated ramp metering algorithm, based on proportional-integral-plus (PIP) control methods. In this manner, the STM proves particularly valuable for the application of multi-objective optimisation techniques in the design of new traffic management systems.

C James Taylor; Paul G McKenna; Peter C Young; Arun Chotai; Mike Mackinnon

2004-01-01T23:59:59.000Z

411

Stereo Vision Based Navigation for Sun-Synchronous Exploration Chris P. Urmson, M. Bernardine Dias, Reid G. Simmons  

E-Print Network (OSTI)

][18] that utilizes knowledge of terrain, time and rover characteristics to maximize solar energy gathered while-synchronous robot. Sun-synchrony is a concept that will enable exploration missions by solar- powered rovers Sun-synchronous exploration is an energy-cognizant strategy for planetary exploration [10

Simmons, Reid

412

PHYSICAL REVIEW E 88, 022908 (2013) Synchronization of a Josephson junction array in terms of global variables  

E-Print Network (OSTI)

PHYSICAL REVIEW E 88, 022908 (2013) Synchronization of a Josephson junction array in terms of Josephson junctions with a common LCR load. Application of the Watanabe-Strogatz approach [Physica D 74, 197 of oscillating physical systems that being coupled synchronize are Josephson junctions [2]. In theoretical

Pikovsky, Arkady

413

Power-Factor and Torque Calculation with Consideration of Cross Saturation of the Interior Permanent Magnet Synchronous Motor with  

E-Print Network (OSTI)

motor of a hybrid electric vehicle. I. INTRODUCTION The interior permanent magnet synchronous motor for application in a hybrid electric vehicle. The BFE structure enables the motor to control the magnitude Permanent Magnet Synchronous Motor with Brushless Field Excitation Seong Taek Lee1,2 , Timothy A. Burress1

Tolbert, Leon M.

414

A tropical bird can use the equatorial change in sunrise and sunset times to synchronize its circannual clock  

Science Journals Connector (OSTI)

...measured by a synchronicity index (defined as the per...from fledging until the completion of their second adult...bulbs (colour rendering index 100, colour temperature...secondary moulted, and completion was defined as the mean...the moult synchronicity index of each individual within...

2012-01-01T23:59:59.000Z

415

Experimental synchronization of chaos in a large ring of mutually coupled single-transistor oscillators: Phase, amplitude, and clustering effects  

Science Journals Connector (OSTI)

In this paper experimental evidence of multiple synchronization phenomena in a large (n?=?30) ring of chaotic oscillators is presented. Each node consists of an elementary circuit generating spikes of irregular amplitude and comprising one bipolar junction transistor one capacitor two inductors and one biasing resistor. The nodes are mutually coupled to their neighbours via additional variable resistors. As coupling resistance is decreased phase synchronization followed by complete synchronization is observed and onset of synchronization is associated with partial synchronization i.e. emergence of communities (clusters). While component tolerances affect community structure the general synchronization properties are maintained across three prototypes and in numerical simulations. The clusters are destroyed by adding long distance connections with distant notes but are otherwise relatively stable with respect to structural connectivity changes. The study provides evidence that several fundamental synchronization phenomena can be reliably observed in a network of elementary single-transistor oscillators demonstrating their generative potential and opening way to potential applications of this undemanding setup in experimental modelling of the relationship between network structure synchronization and dynamical properties.

2014-01-01T23:59:59.000Z

416

Energy Signal Tool for Decision Support in Building Energy Systems  

SciTech Connect

A prototype energy signal tool is demonstrated for operational whole-building and system-level energy use evaluation. The purpose of the tool is to give a summary of building energy use which allows a building operator to quickly distinguish normal and abnormal energy use. Toward that end, energy use status is displayed as a traffic light, which is a visual metaphor for energy use that is either substantially different from expected (red and yellow lights) or approximately the same as expected (green light). Which light to display for a given energy end use is determined by comparing expected to actual energy use. As expected, energy use is necessarily uncertain; we cannot choose the appropriate light with certainty. Instead, the energy signal tool chooses the light by minimizing the expected cost of displaying the wrong light. The expected energy use is represented by a probability distribution. Energy use is modeled by a low-order lumped parameter model. Uncertainty in energy use is quantified by a Monte Carlo exploration of the influence of model parameters on energy use. Distributions over model parameters are updated over time via Bayes' theorem. The simulation study was devised to assess whole-building energy signal accuracy in the presence of uncertainty and faults at the submetered level, which may lead to tradeoffs at the whole-building level that are not detectable without submetering.

Henze, G. P.; Pavlak, G. S.; Florita, A. R.; Dodier, R. H.; Hirsch, A. I.

2014-12-01T23:59:59.000Z

417

FHWA Traffic Volume Trend Monthly VMT Report - October 2010 | Data.gov  

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

October 2010 October 2010 Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data FHWA Traffic Volume Trend Monthly VMT Report - October 2010 Dataset Summary Description The Traffic Volume Trends montly report is a natinal data report that provides quality controlled vehicle miles traveled data for each State for all roadways Tags {"volume data",tvt,"traffic volume trends",'fhwa,AADT,VMT,"Vehicle Miles Traveled"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 02/01/2012 Publisher Federal Highway Administration, Department of Transportation Contact Name Contact Email daniel.jenkins@dot.gov

418

U-091: cURL Lets Remote Users Decrypt SSL/TLS Traffic | Department of  

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

91: cURL Lets Remote Users Decrypt SSL/TLS Traffic 91: cURL Lets Remote Users Decrypt SSL/TLS Traffic U-091: cURL Lets Remote Users Decrypt SSL/TLS Traffic January 30, 2012 - 6:45am Addthis PROBLEM: A vulnerability was reported in cURL. PLATFORM: Linux (Any), UNIX (Any), Windows (Any) : Version(s): 7.10.6 through 7.23.1 ABSTRACT: A remote user can decrypt SSL/TLS sessions in certain cases. reference LINKS: CVE-2011-3389 SecurityTracker Alert ID: 1026587 Vendor Advisory IMPACT ASSESSMENT: Moderate Discussion: A remote user with the ability to conduct a man-in-the-middle attack can decrypt SSL/TLS sessions. The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows

419

FHWA Traffic Volume Trend Monthly VMT Report - June 2010 | Data.gov  

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

June 2010 June 2010 Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data FHWA Traffic Volume Trend Monthly VMT Report - June 2010 Dataset Summary Description The Traffic Volume Trends montly report is a natinal data report that provides quality controlled vehicle miles traveled data for each State for all roadways Tags {"volume data",tvt,"traffic volume trends",'fhwa,AADT,VMT,"Vehicle Miles Traveled"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 02/01/2012 Publisher Federal Highway Administration, Department of Transportation Contact Name Contact Email daniel.jenkins@dot.gov

420

FHWA Traffic Volume Trend Monthly VMT Report - October 2011 | Data.gov  

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

October 2011 October 2011 Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data FHWA Traffic Volume Trend Monthly VMT Report - October 2011 Dataset Summary Description The Traffic Volume Trends montly report is a natinal data report that provides quality controlled vehicle miles traveled data for each State for all roadways Tags {"volume data",tvt,"traffic volume trends",'fhwa,AADT,VMT,"Vehicle Miles Traveled"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 02/01/2012 Publisher Federal Highway Administration, Department of Transportation Contact Name Contact Email daniel.jenkins@dot.gov

Note: This page contains sample records for the topic "traffic signal synchronization" 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

FHWA Traffic Volume Trend Monthly VMT Report - September 2011 | Data.gov  

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

September 2011 September 2011 Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data FHWA Traffic Volume Trend Monthly VMT Report - September 2011 Dataset Summary Description The Traffic Volume Trends montly report is a natinal data report that provides quality controlled vehicle miles traveled data for each State for all roadways Tags {"volume data",tvt,"traffic volume trends",'fhwa,AADT,VMT,"Vehicle Miles Traveled"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 02/01/2012 Publisher Federal Highway Administration, Department of Transportation Contact Name Contact Email daniel.jenkins@dot.gov

422

FHWA Traffic Volume Trend Monthly VMT Report - June 2011 | Data.gov  

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

June 2011 June 2011 Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data FHWA Traffic Volume Trend Monthly VMT Report - June 2011 Dataset Summary Description The Traffic Volume Trends montly report is a natinal data report that provides quality controlled vehicle miles traveled data for each State for all roadways Tags {"volume data",tvt,"traffic volume trends",'fhwa,AADT,VMT,"Vehicle Miles Traveled"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 02/01/2012 Publisher Federal Highway Administration, Department of Transportation Contact Name Contact Email daniel.jenkins@dot.gov

423

High-speed and high-fidelity system and method for collecting network traffic  

DOE Patents (OSTI)

A system is provided for the high-speed and high-fidelity collection of network traffic. The system can collect traffic at gigabit-per-second (Gbps) speeds, scale to terabit-per-second (Tbps) speeds, and support additional functions such as real-time network intrusion detection. The present system uses a dedicated operating system for traffic collection to maximize efficiency, scalability, and performance. A scalable infrastructure and apparatus for the present system is provided by splitting the work performed on one host onto multiple hosts. The present system simultaneously addresses the issues of scalability, performance, cost, and adaptability with respect to network monitoring, collection, and other network tasks. In addition to high-speed and high-fidelity network collection, the present system provides a flexible infrastructure to perform virtually any function at high speeds such as real-time network intrusion detection and wide-area network emulation for research purposes.

Weigle, Eric H. (Los Alamos, NM)

2010-08-24T23:59:59.000Z

424

FHWA Traffic Volume Trend Monthly VMT Report - September 2010 | Data.gov  

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

September 2010 September 2010 Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research » Data FHWA Traffic Volume Trend Monthly VMT Report - September 2010 Dataset Summary Description The Traffic Volume Trends montly report is a natinal data report that provides quality controlled vehicle miles traveled data for each State for all roadways Tags {"volume data",tvt,"traffic volume trends",'fhwa,AADT,VMT,"Vehicle Miles Traveled"} Dataset Ratings Overall 0 No votes yet Data Utility 0 No votes yet Usefulness 0 No votes yet Ease of Access 0 No votes yet Dataset Additional Information Last Updated 02/01/2012 Publisher Federal Highway Administration, Department of Transportation Contact Name Contact Email daniel.jenkins@dot.gov

425

Computer controlled synchronous shifting of an automatic transmission  

DOE Patents (OSTI)

A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the torque at the output of the transmission or drive wheels, the speed of the power source, and the hydraulic pressure applied to a clutch and brake. A control algorithm produces input data representing a commanded upshift, a commanded downshift, a commanded transmission output torque, and commanded power source speed. A microprocessor processes the inputs and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake at a rate that satisfies the requirements for a short gear ratio change and smooth torque transfer between the friction elements.

Davis, Roy I. (9214 Abbey La., Ypsilanti, MI 48198); Patil, Prabhakar B. (10294 W. Outer Dr., Detroit, MI 48223)

1989-01-01T23:59:59.000Z

426

Using multi-agent negotiation techniques for the autonomous resolution of air traffic conflicts  

E-Print Network (OSTI)

is not sufficient to avoid conflict and that any model that is to be used in a real traffic situation must have the explicit capacity to resolve conflicts between multiple aircraft. [4] Tomlin, Pappas and Sastry have published a number of papers on automated air 7... that preserves separation regardless of the actions of the other plane. [13][14][15] Kosecka, Tomlin, Pappas and Sastry have also done work to apply methods from the field of robotics to the problem of air traffic management. There have been a large number...

Wollkind, Steven Robert

2005-02-17T23:59:59.000Z

427

An evaluation of the operating effectiveness of a computer-controlled traffic network  

E-Print Network (OSTI)

to an inter- section of a heavy-volume, high speed traffic artery with a rela- tively lightly traveled minor road or street, and it works well when street capacity is not a critical problem. (14) Semi-actuated equipment operates with detectors on minor... to an inter- section of a heavy-volume, high speed traffic artery with a rela- tively lightly traveled minor road or street, and it works well when street capacity is not a critical problem. (14) Semi-actuated equipment operates with detectors on minor...

De Steiguer, Allen Louis

2012-06-07T23:59:59.000Z

428

Simultaneous Measurement of On-Road Vehicle Emissions and Traffic Flow Using Remote Sensing and an Area-Wide  

E-Print Network (OSTI)

, headway, vehicle type) were simultaneously measured using a video-based area-wide traffic detection system collected via conventional and advanced vehicle monitoring systems. The project is sponsored1 Simultaneous Measurement of On-Road Vehicle Emissions and Traffic Flow Using Remote Sensing

Frey, H. Christopher

429

A real-time GIS for the analysis of a traffic system C. Claramunt, E. Peytchev and A. Bargiela  

E-Print Network (OSTI)

A real-time GIS for the analysis of a traffic system C. Claramunt, E. Peytchev and A. Bargiela describes a prototype development of a new system for the integration of real-time traffic data within a GIS in which systems are designed and used in many application fields. Geographical Information Systems (GIS

Bargiela, Andrzej

430

Analog signal isolation techniques  

SciTech Connect

This paper discusses several techniques for isolating analog signals in an accelerator environment. The techniques presented here encompass isolation amplifiers, voltage-to-frequency converters (VIFCs), transformers, optocouplers, discrete fiber optics, and commercial fiber optic links. Included within the presentation of each method are the design issues that must be considered when selecting the isolation method for a specific application.

Beadle, E.R.

1992-01-01T23:59:59.000Z

431

Analog signal isolation techniques  

SciTech Connect

This paper discusses several techniques for isolating analog signals in an accelerator environment. The techniques presented here encompass isolation amplifiers, voltage-to-frequency converters (VIFCs), transformers, optocouplers, discrete fiber optics, and commercial fiber optic links. Included within the presentation of each method are the design issues that must be considered when selecting the isolation method for a specific application.

Beadle, E.R.

1992-12-31T23:59:59.000Z

432

Chemical Signals Production  

E-Print Network (OSTI)

Chemical Signals · Types · Production · Transmission · Reception · Reading: Ch 10 except boxes 10.1 and 10.2 #12;What is chemical communication? · Movement of molecules from sender to receiver · Methods compounds are volatile. - 5-20 carbon compounds - carbon (MW=12) + hydrogen is less dense than oxygen (MW

Wilkinson, Gerald S.

433

Analyzing Signals Fourier transform  

E-Print Network (OSTI)

Page 1 1 Analyzing Signals Fourier transform s frequency content s linear combination of sin frequency analysis s windowed Fourier transform 6 #12;Page 4 7 Gabor Transform function to analyze window Gabor Transform Spatial domain Gabor domain b #12;Page 5 9 Gabor Transform Problems s discrete version

Sweldens, Wim

434

Journal of Neuroscience Methods 170 (2008) 96110 Identifying repeating motifs in the activation of synchronized  

E-Print Network (OSTI)

Cultured neuronal networks cultivated on micro-electrode arrays are a widely used tool network; Synchronized bursts; Clustering; In vitro; Culture; Micro-electrode array 1. Introduction Cultured neuronal networks cultivated on micro-electrode arrays are widely used as a tool for investigating

Jacob, Eshel Ben

435

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 2, FEBRUARY 2008 501 Permanent Magnet Synchronous Machine  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 2, FEBRUARY 2008 501 Permanent Magnet. The proposed hybrid control scheme is applied to an electrical motor drive composed of an inverter coupled to a perma- nent magnet synchronous machine. An evolution which insures a fixed modulation frequency is also

Paris-Sud XI, Université de

436

Pattern formation of dipolar colloids in rotating fields: Layering and synchronization  

E-Print Network (OSTI)

We report Brownian dynamics (BD) simulation and theoretical results for a system of spherical colloidal particles with permanent dipole moments in a rotating magnetic field. Performing simulations at a fixed packing fraction and dipole coupling parameter, we construct a full non-equilibrium phase diagram as function of the driving frequency ($\\omega_0$) and field strength ($B_0$). This diagram contains both synchronized states, where the individual particles follow the field with (on average) constant phase difference, and asynchronous states. The synchronization is accompanied by layer formation, i.e. by spatial symmetry-breaking, similar to systems of induced dipoles in rotating fields. In the permanent-dipole case, however, too large $\\omega_0$ yield a breakdown of layering, supplemented by complex changes of the single-particle rotational dynamics from synchronous to asynchronous behavior. We show that the limit frequencies $\\omega_c$ can be well described as a bifurcation in the nonlinear equation of motion of a single particle rotating in a viscous medium. Finally, we present a simple density functional theory, which describes the emergence of layers in perfectly synchronized states as an equilibrium phase transition.

Sebastian Jaeger; Sabine H. L. Klapp

2011-03-04T23:59:59.000Z

437

Phase synchronization and chaotic dynamics in Hebbian learned artificial recurrent neural networks  

E-Print Network (OSTI)

Phase synchronization and chaotic dynamics in Hebbian learned artificial recurrent neural networks: increasing the storing capacity of recurrent neural networks as much as possible and observing and studying Colin Molter, Utku Salihoglu and Hugues Bersini Laboratory of artificial intelligence IRIDIA cp194

Molter, Colin

438

Effective synchronization of a class of Chua's chaotic systems using an exponential feedback coupling  

E-Print Network (OSTI)

In this work a robust exponential function based controller is designed to synchronize effectively a given class of Chua's chaotic systems. The stability of the drive-response systems framework is proved through the Lyapunov stability theory. Computer simulations are given to illustrate and verify the method.

Patrick Louodop; Hilaire Fotsin; Elie B. Megam Ngouonkadi; Samuel Bowong; Hilda A. Cerdeira

2013-12-26T23:59:59.000Z

439

Testing foetal–maternal heart rate synchronization via model-based analyses  

Science Journals Connector (OSTI)

...for 5min at a sampling rate of 1kHz and a band pass of 1-200Hz. The measurements...of short-term heart rate variability. Med. Biol...methods of cardiovascular physics and their clinical applicability...foetal-maternal heart rate synchronization via model-based...

2009-01-01T23:59:59.000Z

440

Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains  

E-Print Network (OSTI)

Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains Wilhelm Peters, Tobias Huber, Joachim Böcker Power Electronics and Electrical Drives, Paderborn automotive traction drives are a wide speed range, a wide constant-power operation range and high efficiency

Paderborn, Universität

Note: This page contains sample records for the topic "traffic signal synchronization" 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

COMPARAISON DES PERFORMANCES DE DEUX MOTEURS LECTRIQUES AUTOPILOTS : LE MOTEUR SYNCHRONE AIMANTS PERMANENTS  

E-Print Network (OSTI)

SELF COMMUTATED ELECTRIC MOTORS : THE PERMANENT MAGNET BRUSHLESS DC MOTOR THE SWITCHED RELUCTANCE MOTOR synchronous brushless motors. These motors are, on one hand, the permanent-magnet brushless DC motor supplied, on the other hand, the doubly salient reluctance motor fed by quasi-square currents at low speed, and by full

Paris-Sud XI, Université de

442

Internet Time Synchronization: the Network Time Protocol 1,2,3 David L. Mills  

E-Print Network (OSTI)

the Internet backbone networks and gateways are carefully engineered for good service, op­ erating speedsInternet Time Synchronization: the Network Time Protocol 1,2,3 David L. Mills Electrical), which is designed to distribute time information in a large, diverse internet system operating at speeds

Mills, David L.

443

Improvement of synchronous machine transient response by fast-acting phase-shift control  

Science Journals Connector (OSTI)

The transient response of a synchronous machine connected to a large system can be improved by the insertion of fast-acting phase shift. The concept is described in simple terms using the equal-area criterion and by computed results using a typical mathematical model. A strategy is then outlined to minimise the system disturbance.

A. El-Sersawi; D. O'Kelly

1981-01-01T23:59:59.000Z

444

The Synchronization Attack and Defense on Energy-Efficient Listen-Sleep Slotted MAC  

E-Print Network (OSTI)

Xiaoming Lu, Matt Spear, Karl Levitt and S. Felix Wu Department of Computer Science UC Davis, Davis, CAThe Synchronization Attack and Defense on Energy-Efficient Listen-Sleep Slotted MAC Protocols, many listen- sleep Medium Access Control (MAC) protocols have been pro- posed to reduce energy

California at Davis, University of

445

Wave Synchronizing Crane Control during Water Entry in Offshore Moonpool Operations  

E-Print Network (OSTI)

will become increasingly more important in the years to come. Offshore oil and gas fields will be developed1 Wave Synchronizing Crane Control during Water Entry in Offshore Moonpool Operations strategy for active control in heavy-lift offshore crane operations is suggested, by introducing a new con

Johansen, Tor Arne

446

Simplified Modelling and Control of a Synchronous Machine with VariableSpeed SixStep Drive  

E-Print Network (OSTI)

of electrical power flow in the machine. Cost is a driving factor in the design of such a system, and the power frequency than PWM as well. II. VARIABLE­SPEED ELECTRIC MACHINE DRIVES While the choice of driveSimplified Modelling and Control of a Synchronous Machine with Variable­Speed Six­Step Drive

Sanders, Seth

447

Author Version -Electromotion Journal, 5, oct. 98, pp. 93-101. SPECIAL SYNCHRONOUS LINEAR ACTUATORS.  

E-Print Network (OSTI)

of the movement: - the indirect linear drives have been designed from a rotating electric motor as well as from. For long (and possibly unlimited) courses, the direct drives perform better, with the linear induction- coil actuators prove to be the most suitable. This paper focuses primarily on synchronous linear drives

Paris-Sud XI, Université de

448

Nanomechanical-resonator-induced synchronization in Josephson junction arrays B. R. Trees* and S. Natu  

E-Print Network (OSTI)

, and an interaction energy due to the piezo- electric effect between the NEM and the junctions. Phase lockingNanomechanical-resonator-induced synchronization in Josephson junction arrays B. R. Trees* and S that includes the following effects: the charging and Josephson energies of the junctions, dissipation

Stroud, David

449

Distributed clock generator for synchronous SoC using ADPLL network  

E-Print Network (OSTI)

Distributed clock generator for synchronous SoC using ADPLL network E. Zianbetov1 , D. Galayko1 , F, as well as suffering from reduced communication speed. Distributed clock generators are based on the local. The latter is a good candidate for on-chip distributed clock generation, because of better compatibility

Paris-Sud XI, Université de

450

Combining Retiming and Recycling to Optimize the Performance of Synchronous Circuits  

E-Print Network (OSTI)

Combining Retiming and Recycling to Optimize the Performance of Synchronous Circuits Luca P, CA 94720-1772 Abstract Recycling was recently proposed as a system-level design tech- nique to facilitate the building of complex System-on-Chips (SOC) by assembling pre-designed components. Recycling

Carloni, Luca

451

Synconset Waves and Chains: Spiking Onsets in Synchronous Populations Predict and Are Predicted by  

E-Print Network (OSTI)

Synconset Waves and Chains: Spiking Onsets in Synchronous Populations Predict and Are Predicted Synfire waves are propagating spike packets in synfire chains, which are feedforward chains embedded in random networks. Although synfire waves have proved to be effective quantification for network activity

Narayanan, Rishikesh

452

On Utility Accrual Processor Scheduling with Wait-Free Synchronization for Embedded Real-Time Software  

E-Print Network (OSTI)

On Utility Accrual Processor Scheduling with Wait-Free Synchronization for Embedded Real-Time Software ABSTRACT We present the first wait-free utility accrual (UA) real-time scheduling algorithms for embedded real-time systems. UA scheduling algorithms allow application activities to be sub- ject to time/utility

Ravindran, Binoy

453

Synchronous Oil Migration and Cementation in Sandstone Reservoirs Demonstrated by Quantitative Description of Diagenesis [and Discussion  

Science Journals Connector (OSTI)

...July 1993 research-article Synchronous Oil Migration and Cementation in Sandstone Reservoirs...of sandstone burial diagenesis in certain oil reservoirs, in which petroleum migration...at, and in a series of zones below, the oil-water contact which descends as oil fills...

1993-01-01T23:59:59.000Z

454

Memory Bounds for the Distributed Execution of a Hierarchical Synchronous Data-Flow Graph  

E-Print Network (OSTI)

Memory Bounds for the Distributed Execution of a Hierarchical Synchronous Data-Flow Graph Karol analysis tech- nique to define the boundary of shared memory requirements of Multiprocessor System of transformations to the SDF graph so as to reveal its memory characteristics. These transformations produce

Paris-Sud XI, Université de

455

3D Turbulence Measurements Using Three Synchronous Wind Lidars: Validation against Sonic Anemometry  

Science Journals Connector (OSTI)

This paper presents a technique to measure the time series of the three components of the wind vector at a point in space from synchronous measurements of three scanning Doppler wind lidars. Knowing the position of each lidar on the ground and the ...

Fernando Carbajo Fuertes; Giacomo Valerio Iungo; Fernando Porté-Agel

2014-07-01T23:59:59.000Z

456

Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration  

E-Print Network (OSTI)

Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration Stefano Savazzi1 of new oil and gas reservoir. Seismic exploration requires a large number (500 ÷ 2000 nodes, MAC and network layer to develop wireless sensors networks tailored for oil (and gas) exploration

Savazzi, Stefano

457

Potential Game Theoretic Attitude Coordination on the Circle: Synchronization and Balanced Circular Formation  

E-Print Network (OSTI)

: "synchronization" and "balanced circular for- mation". We first show that both problems constitute potential games Technological innovations produce cheap and low power smart sensors, wireless communication devices and embed to spatially distributed control systems. For example, [6] uses a mobile sensor network for ocean sampling

458

> REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1 Abstract--Self-organizing traffic jams are known to occur in  

E-Print Network (OSTI)

of self-organizing traffic jams. Specifically, the effect of ACC penetration rate on critical vehicle the question of how an increase in penetration of ACC-enabled vehicles in highway traffic alters the dynamics-form analytical solution helps simplify the study of the impact of increased ACC penetration on traffic flow

Brennan, Sean

459

Tailpulse signal generator  

DOE Patents (OSTI)

A tailpulse signal generating/simulating apparatus, system, and method designed to produce electronic pulses which simulate tailpulses produced by a gamma radiation detector, including the pileup effect caused by the characteristic exponential decay of the detector pulses, and the random Poisson distribution pulse timing for radioactive materials. A digital signal process (DSP) is programmed and configured to produce digital values corresponding to pseudo-randomly selected pulse amplitudes and pseudo-randomly selected Poisson timing intervals of the tailpulses. Pulse amplitude values are exponentially decayed while outputting the digital value to a digital to analog converter (DAC). And pulse amplitudes of new pulses are added to decaying pulses to simulate the pileup effect for enhanced realism in the simulation.

Baker, John (Walnut Creek, CA); Archer, Daniel E. (Knoxville, TN); Luke, Stanley John (Pleasanton, CA); Decman, Daniel J. (Livermore, CA); White, Gregory K. (Livermore, CA)

2009-06-23T23:59:59.000Z

460

Best Practices for Rural Traffic Safety Webinar Series TZD Toward Zero Deaths: the National Strategy on  

E-Print Network (OSTI)

to the Decade of Action New areas: SAFETY CULTURE, TECHNOLOGY, PUBLIC HEALTH #12;17 HOW Can We Achieve and SAFETY CULTURE #12;18 Safety Culture--the Real Solution Individual roles, organizational rolesWEBINAR Best Practices for Rural Traffic Safety Webinar Series TZD Toward Zero Deaths: the National

Minnesota, University of

Note: This page contains sample records for the topic "traffic signal synchronization" 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

PUTTING QUALITY OF SERVICE INTO A NETWORK BY MAKING THE TRAFFIC MARKOVIAN  

E-Print Network (OSTI)

can be implemented so that its assumptions, in this case about Markovian traffic streams, are in fact streams Markovian. 1 INTRODUCTION This paper is really about a way of thinking about the modelling process (in this case stochastic modelling) and how it should be applied to an implementation. Usually a model

Bradley, Jeremy

462

The Partially Stopped Leaky Bucket: An Efficient Traffic Regulator with Constant  

E-Print Network (OSTI)

1 The Partially Stopped Leaky Bucket: An Efficient Traffic Regulator with Constant Time Implementation Florin Ciucu, Brian L. Mark , and Robert Simon Lab. of Cooperative Work Environment Dept. of Computer Science Dept. of Electrical and Computer Engineering School of Information Technology

Ciucu, Florin

463

Adaptive Energy Saving Scheme for Downlink Elastic Traffic in Wireless Networks  

E-Print Network (OSTI)

Adaptive Energy Saving Scheme for Downlink Elastic Traffic in Wireless Networks Jongwook Lee, we propose several adaptive energy saving schemes that consider throughput and energy saving simultaneously. The proposed schemes are designed for an efficient tradeoff between throughput and energy saving

Bahk, Saewoong

464

NASA/TM-2010-216706 Formal Verification of Air Traffic  

E-Print Network (OSTI)

June 2010 NASA/TM-2010-216706 Formal Verification of Air Traffic Conflict Prevention Bands Ecole polytechnique, France #12;NASA STI Program . . . in Profile Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA scientific and technical information

Narkawicz, Anthony J.

465

Transient Analysis of Data Traffic in Cognitive Radio Networks: A Non-equilibrium Statistical  

E-Print Network (OSTI)

efficiency of spectrum utilization. In cognitive radio systems, a secondary user (without license) can access a licensed spectrum channel if there is no primary user (with license) transmitting over this channel. When1 Transient Analysis of Data Traffic in Cognitive Radio Networks: A Non-equilibrium Statistical

Li, Husheng

466

Tuning RED for Web Traffic * Mikkel Christiansen, ** Kevin Jeffay, David Ott, F. Donelson Smith  

E-Print Network (OSTI)

139 Tuning RED for Web Traffic * Mikkel Christiansen, ** Kevin Jeffay, David Ott, F. Donelson Smith http://www.cs.unc.edu/Research/dirt Abstract We study the effects of RED on the performance of Web --- response time for HTTP request­response pairs. We empirically evaluate RED across a range of parameter

Jeffay, Kevin

467

A New MAC Scheme Supporting Voice/Data Traffic in Wireless Ad Hoc Networks  

E-Print Network (OSTI)

A New MAC Scheme Supporting Voice/Data Traffic in Wireless Ad Hoc Networks Ping Wang, Member, IEEE, Hai Jiang, Member, IEEE, and Weihua Zhuang, Fellow, IEEE Abstract--In wireless ad hoc networks information exchanges among the nodes. Index Terms--Wireless ad hoc networks, medium access control, fairness

Jiang, Hai

468

Analysis of seasonal and day-of-week traffic patterns at national parks  

E-Print Network (OSTI)

seasonal and day-of-week traffic patterns exhibit consistency from one year to the next, the seasonal and day-of-week factors were compared across all five years. Using the Kruskal-Wallis test, it was determined that the seasonal and day-of-week factors...

Liggett, Lindsay Elizabeth

2009-05-15T23:59:59.000Z

469

Meteorological Conditions Processing for Vision-based Traffic Monitoring Nicolas Hautire  

E-Print Network (OSTI)

of the sensors. A vision-based traffic monitoring system is proposed to take fog and rain into account and react ac- cordingly. A background modeling approach, based on a mixture of gaussians, is used to separate the foreground from the background. Since fog is steady weather, the back- ground image is used to detect

Paris-Sud XI, Université de

470

Measurement and Interpretation of Voice Traffic on the Internet N. F. Maxemchuk S. Lo  

E-Print Network (OSTI)

Measurement and Interpretation of Voice Traffic on the Internet N. F. Maxemchuk S. Lo AT&T Labs ­ Research Lucent Tech. ­ Bell labs ABSTRACT The Internet is being used to carry voice conversations describe the results of a set of measurements on intrastate, cross country, and international Internet

Maxemchuk, Nicholas F.

471

A Prototype System for Real Time Computer Animation of Slow Traffic in a Driving Simulator  

E-Print Network (OSTI)

, University of Groningen, P.O. Box 800, 9700 AV Groningen, The Netherlands Tel. +31­50­3633931; Fax +31 Center, University of Groningen, P.O. Box 69, 9750 AB Haren, The Netherlands Tel. +31­50­3636764; Fax +31­50­363784; Email wolff@trc.rug.nl Abstract The Traffic Research Centre (TRC) of the University of Groningen

Roerdink, Jos B.T.M.

472

Exploring Behavioral Patterns Through Entropy in Multimedia Peer-to-Peer Traffic  

Science Journals Connector (OSTI)

......its source, i.e. near the terminal device generating the traffic (which embraces...with routers, gateways and other local devices). Figure 1 depicts the distribution...first captured a set of traces from hosts listening a few audio streaming sessions using different......

João V. Gomes; Pedro R.M. Inácio; Manuela Pereira; Mário M. Freire; Paulo P. Monteiro

2012-06-01T23:59:59.000Z

473

Development and implementation of algorithms used in ground and internet traffic monitoring  

E-Print Network (OSTI)

. The development and real-time implementation of a new algorithm that filters out erroneous data from the ILDs is the focus of the first half of this thesis. The developed algorithm is based solely on vehicle kinematics and is implemented in real-time. Traffic data...

Ametha, Jayesh

2012-06-07T23:59:59.000Z

474

Facilitation of visual pattern recognition by extraction of relevant features from microscopic traffic data  

E-Print Network (OSTI)

feature space; this is done to minimize the experimental set to a matrix of desirable attributes from the vehicles on the roadway. The application is to identify if this data can be readily parsed into four distinct traffic states; in this case, the state...

Fields, Matthew James

2009-05-15T23:59:59.000Z

475

Marginal costs of freeway traffic congestion with on-road pollution exposure externality  

E-Print Network (OSTI)

Traffic congestion On-road In-vehicle Pollution exposure Vehicle emissions a b s t r a c t The health cost improvements. When considering distinct vehicle classes, inclusion of on-road exposure costs greatly increases heavy-duty vehicle marginal costs because of their higher emissions rates and greater roadway capacity

Bertini, Robert L.

476

Multi-step-ahead prediction of MPEG-coded video source traffic using empirical modeling techniques  

E-Print Network (OSTI)

In the near future, multimedia will form the majority of Internet traffic and the most popular standard used to transport and view video is MPEG. The MPEG media content data is in the form of a time-series representing frame/VOP sizes. This time...

Gupta, Deepanker

2006-04-12T23:59:59.000Z

477

Determination of traffic responsive plan selection factors and thresholds using artificial neural networks  

E-Print Network (OSTI)

time independent variation in traffic volumes. It can also reduce the effect of timing plan aging. Despite these advantages, TRPS mode is not used as frequently as TOD mode. The reason being a lack of methodologies and formal guidelines for predicting...

Sharma, Anuj

2004-11-15T23:59:59.000Z

478

EFFICIENT VEHICLE TRACKING AND CLASSIFICATION FOR AN AUTOMATED TRAFFIC SURVEILLANCE SYSTEM  

E-Print Network (OSTI)

surveillance system needs to detect vehicles and classify them if possible. Generating vehicle trajectoriesEFFICIENT VEHICLE TRACKING AND CLASSIFICATION FOR AN AUTOMATED TRAFFIC SURVEILLANCE SYSTEM Amol to detect the pose of a vehicle in the 3D world. This information is used in a model-based vehicle detection

Nicolescu, Mircea

479

Field monitoring and modeling of pavement response and service life consumption due to overweight truck traffic  

E-Print Network (OSTI)

A number of pavement structures experience deterioration due to high traffic volume and growing weights. Recently, the Texas Legislatures passed bills allowing trucks of gross vehicle weight (GVW) up to 556 kN routinely to use a route in south Texas...

Oh, Jeong-Ho

2004-11-15T23:59:59.000Z

480

A Hamilton-Jacobi approach to junction problems and application to traffic flows  

E-Print Network (OSTI)

A Hamilton-Jacobi approach to junction problems and application to traffic flows C. Imbert , R of a model case of first order Hamilton-Jacobi equations posed on a "junction", that is to say the union of such problems. Keywords: Hamilton-Jacobi equations, discontinuous Hamiltonians, viscosity solutions, optimal

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "traffic signal synchronization" 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

Hiding Traffic with Camouflage: Minimizing Message Delay in the Smart Grid under Jamming  

E-Print Network (OSTI)

Hiding Traffic with Camouflage: Minimizing Message Delay in the Smart Grid under Jamming Zhuo Lu}@ncsu.edu Email: cliff.wang@us.army.mil Abstract--The smart grid is an emerging cyber-physical system that integrates power infrastructures with information technolo- gies. In the smart grid, wireless networks have

Wang, Wenye

482

Autonomous driving manoeuvres in urban road traffic environment: a study on roundabouts  

E-Print Network (OSTI)

Autonomous driving manoeuvres in urban road traffic environment: a study on roundabouts Pérez of this evolution or they are still in the development stage. Autonomous vehicle performance on roundabouts is one implementation in real vehicles. Keywords: Lane keeping, autonomous vehicles, roundabouts, digital map

Paris-Sud XI, Université de

483

Dynamic Rate and Power Allocation in Wireless Ad Hoc Networks with Elastic and Inelastic Traffic  

Science Journals Connector (OSTI)

In this paper, we focus on the problem of dynamic rate and power allocation in wireless ad hoc networks with slow-fading channels, where a mixture of elastic and inelastic traffic is supported. A stochastic optimization problem incorporating the quality ... Keywords: Dynamic resource allocation, Elastic flows, Inelastic flows, Particle swarm optimization (PSO), QoS requirements, Stochastic duality theory

Fei Wang; Xiaofeng Liao; Songtao Guo; Hongyu Huang; Tingwen Huang

2013-05-01T23:59:59.000Z

484

Combined Intra- and Inter-domain Traffic Engineering using Hot-Potato Aware Link Weights Optimization  

E-Print Network (OSTI)

A well-known approach to intradomain traffic engineering consists in finding the set of link weights that minimizes a network-wide objective function for a given intradomain traffic matrix. This approach is inadequate because it ignores a potential impact on interdomain routing. Indeed, the resulting set of link weights may trigger BGP to change the BGP next hop for some destination prefixes, to enforce hot-potato routing policies. In turn, this results in changes in the intradomain traffic matrix that have not been anticipated by the link weights optimizer, possibly leading to degraded network performance. We propose a BGP-aware link weights optimization method that takes these effects into account, and even turns them into an advantage. This method uses the interdomain traffic matrix and other available BGP data, to extend the intradomain topology with external virtual nodes and links, on which all the well-tuned heuristics of a classical link weights optimizer can be applied. A key innovative asset of our ...

Balon, Simon

2008-01-01T23:59:59.000Z

485

HTTP TRAFFIC SIMULATION AND EVALUATION FOR MULTIPLE USERS IN AN INTRANET NETWORK  

E-Print Network (OSTI)

"friendly" environment. In our application we use a mechanism exploiting Intranet technology to stressHTTP TRAFFIC SIMULATION AND EVALUATION FOR MULTIPLE USERS IN AN INTRANET NETWORK Elias Aravantinos Christos Bouras Petros Ganos Panagiotis Kokkinos Research Academic Computer Technology Institute Computer

Bouras, Christos

486

VTrack: Accurate, Energy-Aware Road Traffic Delay Estimation Using Mobile Phones  

E-Print Network (OSTI)

for travel time estimation using this sensor data that addresses two key challenges: energy consumptionVTrack: Accurate, Energy-Aware Road Traffic Delay Estimation Using Mobile Phones Arvind Thiagarajan the bat- tery quickly. In these cases, VTrack can use alternative, less energy-hungry but noisier sensors

Gummadi, Ramakrishna

487

A multi-level approach to the integration of traffic data within GIS  

E-Print Network (OSTI)

A multi-level approach to the integration of traffic data within GIS Kalin Penev, Christophe systems are designed and used in many application fields. Geographical Information Systems (GIS) have now challenges for GIS is to generate a corporate resource whose full potential will be achieved by making

Bargiela, Andrzej

488

A GIS-based Bayesian approach for analyzing spatial-temporal patterns of traffic crashes  

E-Print Network (OSTI)

This thesis develops a GIS-based Bayesian approach for area-wide traffic crash analysis. Five years of crash data from Houston, Texas, are analyzed using a geographic information system (GIS), and spatial-temporal patterns of relative crash risk...

Li, Linhua

2009-06-02T23:59:59.000Z

489

Rate-distortion analysis and traffic modeling of scalable video coders  

E-Print Network (OSTI)

performance for video transmission based on the characteristics of existing video traffic. Rate-distortion (R-D) based schemes are often applied to improve and stabilize video quality; however, the lack of R-D modeling of scalable coders limits...

Dai, Min

2006-04-12T23:59:59.000Z

490

Air Pollution from Traffic and Risk for Lung Cancer in Three Danish Cohorts  

Science Journals Connector (OSTI)

...the present study focused on vehicle traffic emissions, which is...time trends, supported by ecological correlations between the incidence...rates of adenocarcinomas and vehicle densities at county area level...and their relation to motor vehicle density. Cancer Epidemiol...

Ole Raaschou-Nielsen; Helle Bak; Mette Sørensen; Steen Solvang Jensen; Matthias Ketzel; Martin Hvidberg; Peter Schnohr; Anne Tjønneland; Kim Overvad; and Steffen Loft

2010-05-01T23:59:59.000Z

491

Robust Network Monitoring in the presence of Non-Cooperative Traffic Queries  

E-Print Network (OSTI)

, Universitat Polit`ecnica de Catalunya (UPC), Campus Nord, Edif. D6, C. Jordi Girona, 1-3, 08034 Barcelona 1 Introduction The ability to extract detailed information from live traffic streams is critical as well as the types of computations, usually unknown in advance, to be performed on the packet streams

Politècnica de Catalunya, Universitat

492

Exploring Behavioral Patterns Through Entropy in Multimedia Peer-to-Peer Traffic  

Science Journals Connector (OSTI)

......value of xi: H(x) = - ni =1 p(xi) ln p(xi). (1) For any finite number n...USA. [22] Li, B., Ma, M. and Jin, Z. (2011) A VoIP traffic identification...Enterprise (WETICE 2005), Link ping, Sweden, June, pp. 172177. IEEE......

João V. Gomes; Pedro R.M. Inácio; Manuela Pereira; Mário M. Freire; Paulo P. Monteiro

2012-06-01T23:59:59.000Z

493

Influence of vehide traffic reduction in a town centre on BTX polhition Isabelle ZDANEVITCH a  

E-Print Network (OSTI)

et Pollution de l'Air", Avignon : France (2000)" #12;1. Objectives It seems obvious that with limited centres. According to that scheine, WERIS, m association wifh the local Air Qualily Moniforing Nefwork A1 clearly indicates traffic äs the main source of atmospheric pollution. Measured benzene levels over the 3

Boyer, Edmond

494

The Stiff Is Moving---Conjugate Direction Frank-Wolfe Methods with Applications to Traffic Assignment*  

Science Journals Connector (OSTI)

We present versions of the Frank-Wolfe method for linearly constrained convex programs, in which consecutive search directions are made conjugate. Preliminary computational studies in a MATLAB environment applying pure Frank-Wolfe, conjugate direction ... Keywords: conjugate directions, multicommodity flow, traffic assignment

Maria Mitradjieva; Per Olov Lindberg

2013-05-01T23:59:59.000Z

495

Distributed Scheduling for Air Traffic Throughput Maximization During the Terminal Phase of Flight  

E-Print Network (OSTI)

of a few large scale tests of systems developed based on the Automatic Dependent Surveillance-Broadcast (ADS-B) information. ADS-B, a crucial component of NextGen, relays highly accurate traffic information computes and displays a recommended aircraft velocity such that a safe distance is maintained

Egerstedt, Magnus

496

Merging Traffic to Save Energy in the Enterprise Department of Computer Science  

E-Print Network (OSTI)

replace the high port density switches. The energy savings from such a redesign are significant with switches having far fewer ports. This automatically reduces energy use in both the chassis as wellMerging Traffic to Save Energy in the Enterprise Candy Yiu Department of Computer Science Portland

Singh, Suresh

497

Examining the application of conway-maxwell-poisson models for analyzing traffic crash data  

E-Print Network (OSTI)

under-dispersed crash data. The primary objective of this research is to evaluate the performance of the Conway-Maxwell-Poisson (COM-Poisson) model for various situations and to examine its application for analyzing traffic crash datasets exhibiting over...

Geedipally, Srinivas Reddy

2009-05-15T23:59:59.000Z

498

Performance Evaluation of Adaptive Ramp-Metering Algorithms Using Microscopic Traffic Simulation Model  

E-Print Network (OSTI)

to implementation on the target freeway network. In this paper, a capability-enhanced PARAMICS simulation model has evaluation; Simulation models; Algorithms. Introduction Ramp metering has been recognized as an effectivePerformance Evaluation of Adaptive Ramp-Metering Algorithms Using Microscopic Traffic Simulation

Levinson, David M.

499

Trails, lanes, or traffic: Valuing bicycle facilities with an adaptive stated preference survey  

E-Print Network (OSTI)

Trails, lanes, or traffic: Valuing bicycle facilities with an adaptive stated preference survey with side parking to an off-road bicycle trail, with smaller changes associated with less dramatic improvements. Ã? 2006 Elsevier Ltd. All rights reserved. Keywords: Bicycling; Stated preference; Adaptive stated

Levinson, David M.

500

Experimental investigation of subcooled flow boiling using synchronized high speed video, infrared thermography, and particle image velocimetry  

E-Print Network (OSTI)

Subcooled flow boiling of water was experimentally investigated using high-speed video (HSV), infrared (IR) thermography, and particle image velocimetry (PIV) to generate a unique database of synchronized data. HSV allowed ...

Phillips, Bren Andrew

2014-01-01T23:59:59.000Z