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1

Further Notice of 230kV Circuit Planned Outages | Department of Energy  

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

Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Order No. 202-05-03: Pursuant 10 the United States Department of Energy "DOE") Order No. 102-05-3, issued December 20, 2005 ("DOE Potomac River Order''), Pepco hereby files this Further Notice Of 230kV Circuit Planned Outages serving the Potomac River Substation, and through thaI station, the District of Columbia. Further Notice of 230kV Circuit Planned Outages More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages

2

Further Notice of 230kV Circuit Planned Outages | Department of Energy  

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

Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Order No. 202-05-03: Pursuant 10 the United States Department of Energy "DOE") Order No. 102-05-3, issued December 20, 2005 ("DOE Potomac River Order''), Pepco hereby files this Further Notice Of 230kV Circuit Planned Outages serving the Potomac River Substation, and through thaI station, the District of Columbia. Further Notice of 230kV Circuit Planned Outages More Documents & Publications Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits

3

Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages |  

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

Further Notice of 230kV Circuit Planned Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Pursuant to the United States Department of Energy Order No. 202-05-03, issued December 20, 2005 directing Mirant Potomac River to generate electricity at Potomac River Generating Station, PEPCO hereby files this Further Notice of 230kV Circuit Planned Outages. Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages More Documents & Publications Further Notice of 230kV Circuit Planned Outages Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits Re: Potomac River Generating Station Department of Energy Case No.

4

Basic DC Meter Design ECE 2100 Circuit Analysis Laboratory  

E-Print Network [OSTI]

Basic DC Meter Design ECE 2100 Circuit Analysis Laboratory updated 8 January 2008 Pre-Laboratory Assignment 1. Design an ammeter with full scale current IFS equal to 5 mA using a meter movement rated at 0.5 mA and 100 mV. 2. Design a voltmeter with a full scale voltage VFS equal to 10 V using the meter

Miller, Damon A.

5

Edison Revisited: Should we use DC Circuits for Lighting in Commercial  

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

Edison Revisited: Should we use DC Circuits for Lighting in Commercial Edison Revisited: Should we use DC Circuits for Lighting in Commercial Buildings? Speaker(s): Brinda Thomas Date: March 7, 2012 - 12:30pm Location: 90-3122 Seminar Host/Point of Contact: Chris Marnay This seminar summarizes work from a forthcoming Energy Policy paper and thoughts on future work to understand the economics of DC building circuits. We examined the economic feasibility of a general application of DC building circuits to operate commercial lighting systems. We compare light-emitting diodes (LEDs) and fluorescents that are powered by either a central DC power supply or traditional AC grid electricity, with and without solar photovoltaics (PV) and battery back-up. We find that there are limited life-cycle ownership cost and capital cost benefits of DC

6

Potomac River Project Outage Schedule Clarification | Department of Energy  

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

Potomac River Project Outage Schedule Clarification Potomac River Project Outage Schedule Clarification Potomac River Project Outage Schedule Clarification Docket No. EO-05-01. Order No. 202-07-02: Based on the most current information we have for both circuits, the new outage dates are listed below: Outage Duration Feeder Out April 30, 2007 - June 1, 2007 Circuit 1 June 2, 2007 - July 1, 2007 Circuit 2 Potomac River Project Outage Schedule Clarification More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) evised plan for transmission outages for the 230 kV circuits Notification of Planned 230kV Outage at Potomac River Generating Station PEPCO Comments on Special Environmental Analysis For Actions Taken Under U.S. Department of Energy Emergency Orders Regarding Operation of the

7

Pepco Update on Current Construction Work and Mirant Generation Needs for Pepco's Planned June Line Outage  

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

May 25, 2007 May 25, 2007 Kevin Kolevar Director of the Office of Electricity Deliverability and Energy Reliability Department of Energy 1000 Independence Ave., SW Washington, DC 20585 Dear Mr. Kolevar, DOE has requested that Pepco provide an update on the current work to install two new 230 kilovolt circuits into Potomac River substation and to evaluate the need for generation from the Potomac River plant to support the anticipated line outage during June, 2007. An outage on one of the 230 kV circuits is currently underway and is currently scheduled to be completed by June 2, 2007. Mirant has supported this outage with generation required to match the Potomac River area load from the substation. This has required the operation of all 5 generating units located at

8

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--II: EXPRESS BRIEFS, VOL. 55, NO. 9, SEPTEMBER 2008 927 Using Transmission Line Outage Data to  

E-Print Network [OSTI]

Using Transmission Line Outage Data to Estimate Cascading Failure Propagation in an Electric Power transmission line outages recorded over nine years in an electric power system with approx- imately 200 lines. The average amount of propagation of the line outages is estimated from the data. The distribution

Dobson, Ian

9

Potomac River Project Outage Schedule Clarification | Department of Energy  

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

River Project Outage Schedule Clarification River Project Outage Schedule Clarification Potomac River Project Outage Schedule Clarification Docket No. EO-05-01. Order No. 202-07-02: Based on the most current information we have for both circuits, the new outage dates are listed below: Outage Duration Feeder Out April 30, 2007 - June 1, 2007 Circuit 1 June 2, 2007 - July 1, 2007 Circuit 2 Potomac River Project Outage Schedule Clarification More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) evised plan for transmission outages for the 230 kV circuits PEPCO Comments on Special Environmental Analysis For Actions Taken Under U.S. Department of Energy Emergency Orders Regarding Operation of the Potomac River Generating Station in Alexandria, Virginia

10

Edison Revisited: Should we use DC circuits for lighting in commercial buildings?  

Science Journals Connector (OSTI)

We examine the economic feasibility of using dedicated DC circuits to operate lighting in commercial buildings. We compare light-emitting diodes (LEDs) and fluorescents that are powered by either a central DC power supply or traditional AC grid electricity, with and without solar photovoltaics (PV) and battery back-up. Using DOE performance targets for \\{LEDs\\} and solar PV, we find that by 2012 \\{LEDs\\} have the lowest levelized annualized cost (LAC). If a DC voltage standard were developed, so that each LED fixture's driver could be eliminated, \\{LACs\\} could decrease, on average, by 5% compared to AC \\{LEDs\\} with a driver in each fixture. DC circuits in grid-connected PV-powered LED lighting systems can lower the total unsubsidized capital costs by 4–21% and \\{LACs\\} by 2–21% compared to AC grid-connected PV LEDs. Grid-connected PV \\{LEDs\\} may match the LAC of grid-powered fluorescents by 2013. This outcome depends more on manufacturers' ability to produce \\{LEDs\\} that follow DOE's lamp production cost and efficacy targets, than on reducing power electronics costs for DC building circuits and voltage standardization. Further work is needed to better understand potential safety risks with DC distribution and to remove design, installation, permitting, and regulatory barriers.

Brinda A. Thomas; Inęs L. Azevedo; Granger Morgan

2012-01-01T23:59:59.000Z

11

Small wind turbine emulator with armature controlled separately excited DC motor via analogue electronic circuit  

Science Journals Connector (OSTI)

In this paper, a small wind turbine emulator (WTE) using separately excited DC motor is modelled, designed, simulated, implemented and tested. A 1 HP separately excited DC motor is used to emulate the characteristics of the rotor of small wind turbine. The DC motor is driven by a thyristor bridge with closed-loop cascaded PI controller for armature control. A separately excited DC generator with a variable resistive load is directly coupled to the DC motor. A small cheap analogue electronic circuit, with less interfacing, is used to generate a specific reference wind turbine speed based on the wind turbine rotor characteristics and the mechanical wind power available. Simulation and experimental results are compared to proof the validity and accuracy of the WTE.

A. Mahdy; S.M. El-Hakim; Hanafy Hassan Hanafy

2012-01-01T23:59:59.000Z

12

Definition: Sustained Outage | Open Energy Information  

Open Energy Info (EERE)

Sustained Outage Sustained Outage Jump to: navigation, search Dictionary.png Sustained Outage The deenergized condition of a transmission line resulting from a fault or disturbance following an unsuccessful automatic reclosing sequence and/or unsuccessful manual reclosing procedure.[1] View on Wikipedia Wikipedia Definition A power outage (also power cut, blackout, or power failure) is a short- or long-term loss of the electric power to an area. There are many causes of power failures in an electricity network. Examples of these causes include faults at power stations, damage to electric transmission lines, substations or other parts of the distribution system, a short circuit, or the overloading of electricity mains. Power failures are particularly critical at sites where the environment and public safety are

13

Notice of Unplanned Outage at the Mirant Potomac River Plant | Department  

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

Unplanned Outage at the Mirant Potomac River Plant Unplanned Outage at the Mirant Potomac River Plant Notice of Unplanned Outage at the Mirant Potomac River Plant Docket No. EO-05-01. Order No. 202-05-03: Pursuant to the United States Department of Energy ("DOE") Order No_ 202-05-3, issued December 20, 2005 ("DOE Potomac River Order"), Pepco hereby files this notice of an unplanned outage of one of the 230kV circuits serving the Potomac River Substation, and through that station, the District of Columbia. Notice of Unplanned Outage at the Mirant Potomac River Plant More Documents & Publications Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits Further Notice of 230kV Circuit Planned Outages

14

Refinery Outages: Fall 2014  

Reports and Publications (EIA)

This report examines refinery outages planned for Fall 2014 and the potential implications for available refinery capacity, petroleum product markets and supply of gasoline and middle distillate fuel oil (diesel, jet fuel, and heating oil). EIA believes that dissemination of such analyses can be beneficial to market participants who may otherwise be unable to access such information.

2014-01-01T23:59:59.000Z

15

Notification of Planned 230kV Outage at Potomac River Generating Station |  

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

Notification of Planned 230kV Outage at Potomac River Generating Notification of Planned 230kV Outage at Potomac River Generating Station Notification of Planned 230kV Outage at Potomac River Generating Station Docket No. EO-05-01. In accordance with DOE Order No. 202-05-03 Pepco is required to provide notification of any and all 230kV planned outages at Potomac River Generating Station. On Tuesday February 20, 2007 Potomac Electric Power Company (Pepco) will be taking a planned outage on the 23106 high voltage circuit between the Palmer's Corner Substation and the Potomac River Generating Station. Notification of Planned 230kV Outage at Potomac River Generating Station More Documents & Publications Re: Potomac River Generating Station Department of Energy Case No. EO-05-01: Advanced Notice of Power Outages. Special Environmental Analysis For Actions Taken under U.S. Department of

16

Copyright 2008 IEEE. Reprinted from Hui Ren, Student Member, IEEE and Ian Dobson, Fellow, IEEE; Using Transmission Line Outage Data to Estimate Cascading Failure Propagation in an  

E-Print Network [OSTI]

; Using Transmission Line Outage Data to Estimate Cascading Failure Propagation in an Electric Power ON CIRCUITS AND SYSTEMS--II: EXPRESS BRIEFS, VOL. 55, NO. 9, SEPTEMBER 2008 927 Using Transmission Line Outage, IEEE, and Ian Dobson, Fellow, IEEE Abstract--We study cascading transmission line outages recorded over

17

Definition: Reduced Sustained Outages | Open Energy Information  

Open Energy Info (EERE)

Outages Outages Jump to: navigation, search Dictionary.png Reduced Sustained Outages A sustained outage is one lasting >5 minutes, excluding major outages and wide-scale outages. The monetary benefit of reducing sustained outages is based on the value of service (VOS) of each customer class. The VOS parameter represents the total cost of a power outage per MWh. This cost includes the value of unserved energy, lost productivity, collateral damage, administrative costs, the value of penalties and performance-based rates. Functions that lead to this benefit can reduce the likelihood that there will be an outage, allow the system to be reconfigured on the fly to help restore service to as many customers as possible, enable a quicker response in the restoration effort, or mitigate the impact of an outage

18

outages | OpenEI Community  

Open Energy Info (EERE)

66 66 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142234866 Varnish cache server outages Home Graham7781's picture Submitted by Graham7781(2002) Super contributor 29 October, 2012 - 14:46 East Coast Utilities prepare for Hurricane Sandy East Coast Hurricane Sandy OpenEI outages storm United States Utility Companies As Hurricane Sandy continues to track towards the coast of the Eastern United States, utility companies have been preparing for an imminent threat that could lead to a substantial and prolonged power outage for utility

19

FPL's Christmas 1991 transmission outages  

SciTech Connect (OSTI)

A record number of contamination related outages occurred on FPL transmission lines during Christmas of 1991 and resulted in an investigation of inservice insulator performance. The field investigation process used was enhanced by recent improvements in outage data recording. Also used in the analysis were weather information, the results of recently completed accelerated aging tests of polymers, and specially conducted tests on the effects of weathering steel stain on porcelain insulators. Specific insulator problems were identified and actions taken to reduce the possibility of recurrence.

Burnham, J.T.; Busch, D.W.; Renowden, J.D. (Florida Power Light Co., Juno Beach, FL (United States). Transmission Line Dept.)

1993-10-01T23:59:59.000Z

20

Definition: Reduced Major Outages | Open Energy Information  

Open Energy Info (EERE)

Outages Outages Jump to: navigation, search Dictionary.png Reduced Major Outages A major outage is defined using the beta method, per IEEE Std 1366-2003 (IEEE Power Engineering Society 2004). The monetary benefit of reducing major outages is based on the VOS of each customer class. The VOS parameter represents the total cost of a power outage per MWh. This cost includes the value of unserved energy, lost productivity, collateral damage, the value of penalties and performance-based rates. Functions that lead to this benefit can mitigate major outages by allowing the system to be reconfigured on the fly to help restore service to as many customers as possible, enable a quicker response in the restoration effort, or mitigate the impact of an outage through islanding or alternative power supply.[1]

Note: This page contains sample records for the topic "dc circuit outage" 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

Definition: Outage Management System | Open Energy Information  

Open Energy Info (EERE)

Outage Management System Outage Management System A software application that can process outage reports from a variety of utility operational systems including SCADA, AMI, and customer phone calls, and display outage information to utility operators. The OMS can help a utility interpret outage information and determine where the likely cause of an outage may be. It can also help the utility optimize its service restoration resources.[1] Related Terms advanced metering infrastructure References ↑ https://www.smartgrid.gov/category/technology/outage_management_system [[C LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ategory: Smart Grid Definitionssmart grid,smart grid, |Template:BASEPAGENAME]]smart grid,smart grid, Retrieved from "http://en.openei.org/w/index.php?title=Definition:Outage_Management_System&oldid=502507

22

Notification of Planned 230kV Outage at Potomac River Generating Station |  

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

In accordance with DOE Order No. 202-05-03 Pepco is In accordance with DOE Order No. 202-05-03 Pepco is required to provide notification of any and all 230kV planned outages at Potomac River Generating Station. On Tuesday February 20, 2007 Potomac Electric Power Company (Pepco) will be taking a planned outage on the 23106 high voltage circuit between the Palmer's Corner Substation and the Potomac River Generating Station. Notification of Planned 230kV Outage at Potomac River Generating Station More Documents & Publications Re: Potomac River Generating Station Department of Energy Case No. EO-05-01: Advanced Notice of Power Outages. Special Environmental Analysis For Actions Taken under U.S. Department of Energy Emergency Orders Regarding Operation of the Potomac River Generating Station in Alexandria, Virginia

23

Definition: Reduced Momentary Outages | Open Energy Information  

Open Energy Info (EERE)

Momentary Outages Momentary Outages Jump to: navigation, search Dictionary.png Reduced Momentary Outages By locating faults more accurately or adding electricity storage, momentary outages could be reduced or eliminated. Moreover, fewer customers on the same or adjacent distribution feeders would experience the momentary interruptions associated with reclosing. Momentary outages last <5 min in duration. The benefit to consumers is based on the value of service.[1] Related Terms electricity storage technologies, electricity generation, smart grid References ↑ SmartGrid.gov 'Description of Benefits' An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Reduced_Momentary_Outages&oldid=493094

24

A Review of Power Outages and Restoration Following the June 2012 Derecho |  

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

A Review of Power Outages and Restoration Following the June 2012 A Review of Power Outages and Restoration Following the June 2012 Derecho A Review of Power Outages and Restoration Following the June 2012 Derecho August 7, 2012 - 11:16am Addthis The Office of Electricity Delivery and Energy Reliability has released a report that reviews power outages and restoration efforts following the June 29, 2012 Derecho and compares them to outages and restoration efforts following other spring and summer storms in the Ohio Valley and Mid-Atlantic regions. View the Report. Addthis Related Articles Salazar, Chu Announce Major Offshore Wind Initiatives A Review of Power Outages and Restoration Following the June 2012 Derecho Response to Hurricane Irene - Restoring Power on the East Coast President Barack Obama listens to Acting Energy Secretary Daniel B. Poneman during a meeting with electric utility CEOs and trade association representatives at the Department of Energy in Washington, D.C., May 8, 2013. | Official White House Photo by Pete Souza.

25

North American Electric Reliability Council Outage Announcement |  

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

Council Outage Announcement Council Outage Announcement North American Electric Reliability Council Outage Announcement Starting at about 4:11 p.m. EDT, major losses of electric load occurred in the northeastern United States and Canada in the Eastern Interconnection. Although the exact cause is not known at present, the outages are not the result of a terrorist attack. The areas most affected center around the Great Lakes: Michigan, Ohio, New York City, Ontario, Quebec, northern New Jersey, Massachusetts, and Connecticut. North American Electric Reliability Council Outage Announcement More Documents & Publications Blackout 2003: Final Report on the August 14, 2003 Blackout in the United States and Canada: Causes and Recommendations Blackout 2003: Blackout Final Implementation Report

26

Commutation circuit for an HVDC circuit breaker  

DOE Patents [OSTI]

A commutation circuit for a high voltage DC circuit breaker incorporates a resistor capacitor combination and a charging circuit connected to the main breaker, such that a commutating capacitor is discharged in opposition to the load current to force the current in an arc after breaker opening to zero to facilitate arc interruption. In a particular embodiment, a normally open commutating circuit is connected across the contacts of a main DC circuit breaker to absorb the inductive system energy trapped by breaker opening and to limit recovery voltages to a level tolerable by the commutating circuit components. 13 figs.

Premerlani, W.J.

1981-11-10T23:59:59.000Z

27

Commutation circuit for an HVDC circuit breaker  

DOE Patents [OSTI]

A commutation circuit for a high voltage DC circuit breaker incorporates a resistor capacitor combination and a charging circuit connected to the main breaker, such that a commutating capacitor is discharged in opposition to the load current to force the current in an arc after breaker opening to zero to facilitate arc interruption. In a particular embodiment, a normally open commutating circuit is connected across the contacts of a main DC circuit breaker to absorb the inductive system energy trapped by breaker opening and to limit recovery voltages to a level tolerable by the commutating circuit components.

Premerlani, William J. (Scotia, NY)

1981-01-01T23:59:59.000Z

28

GUIDELINES FOR IMPLEMENTATION OF AN ADVANCED OUTAGE CONTROL CENTER TO IMPROVE OUTAGE COORDINATION, PROBLEM RESOLUTION, AND OUTAGE RISK MANAGEMENT  

SciTech Connect (OSTI)

This research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which is a research and development (R&D) program sponsored by Department of Energy (DOE) and performed in close collaboration with industry R&D programs that provide the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRS program serves to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. Managing NPP outages is a complex and difficult task due to the large number of maintenance and repair activities that are accomplished in a short period of time. During an outage, the outage control center (OCC) is the temporary command center for outage managers and provides several critical functions for the successful execution of the outage schedule. Essentially, the OCC functions to facilitate information inflow, assist outage management in processing information, and to facilitate the dissemination of information to stakeholders. Currently, outage management activities primarily rely on telephone communication, face to face reports of status, and periodic briefings in the OCC. It is a difficult task to maintain current the information related to outage progress and discovered conditions. Several advanced communication and collaboration technologies have shown promise for facilitating the information flow into, across, and out of the OCC. The use of these technologies will allow information to be shared electronically, providing greater amounts of real-time information to the decision makers and allowing OCC coordinators to meet with supporting staff remotely. Passively monitoring status electronically through advances in the areas of mobile worker technologies, computer-based procedures, and automated work packages will reduce the current reliance on manually reporting progress. The use of these technologies will also improve the knowledge capture and management capabilities of the organization. The purpose of this research is to improve management of NPP outages through the development of an advanced outage control center (AOCC) that is specifically designed to maximize the usefulness of communication and collaboration technologies for outage coordination and problem resolution activities. This technical report for industry implementation outlines methods and considerations for the establishment of an AOCC. This report provides a process for implementation of a change management plan, evaluation of current outage processes, the selection of technology, and guidance for the implementation of the selected technology. Methods are presented for both adoption of technologies within an existing OCC and for a complete OCC replacement, including human factors considerations for OCC design and setup.

Shawn St. Germain; Ronald Farris; April M. Whaley; Heather Medema; David Gertman

2014-09-01T23:59:59.000Z

29

ORNL Network Outage, Friday, April 15, 9:30 p.m. to Date  

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

Outage Outage All externally accessible ORNL servers, including the ORNL DAAC Web Site, http://daac.ornl.gov are experiencing network outages or slow connectivity at this time. The ORNL Information Technology's Cyber Security Program is working hard to restore full external functionality. We apologize for this inconvenience and appreciate your patience during our down time. At this time you can explore our Web site and access data products including MODIS Land Products Subsets, albeit slowly. The following tools: Mercury (Simple Search and Advanced Product Search) WebGIS Spatial Data Access Tool (SDAT) Thematic Real-time Environmental Distributed Data Services (THREDDS) Data Server (TDS) as well as the following Web Sites: Mast-DC FLUXNET are not available. You may experience problems signing-in or

30

Market Assessment of Refinery Outages Planned for March 2011 through June 2011  

Gasoline and Diesel Fuel Update (EIA)

Assessment of Refinery Assessment of Refinery Outages Planned for March 2011 through June 2011 APRIL 2011 www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration / Market Assessment of Planned Refinery Outages / March 2011 - June 2011 ii This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. U.S. Energy Information Administration / Market Assessment of Planned Refinery Outages /

31

Systems and Services Outage Notification Policy  

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

Job Logs & Analytics Job Logs & Analytics Training & Tutorials Software Accounts & Allocations Policies Acknowledge NERSC Allocation Eligibility Allocation Management Computer Security Computer Use Data Management Passwords Queue Scheduling Usage Charges System Outages Data Analytics & Visualization Data Management Policies Science Gateways User Surveys NERSC Users Group User Announcements Help Operations for: Passwords & Off-Hours Status 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting http://help.nersc.gov consult@nersc.gov 1-800-66-NERSC, option 3 or 510-486-8611 Home » For Users » Policies » System Outages Systems Outage Notification Policy To be considered a scheduled outage, the user community must be notified of

32

Definition: Forced Outage | Open Energy Information  

Open Energy Info (EERE)

Forced Outage Forced Outage Jump to: navigation, search Dictionary.png Forced Outage The removal from service availability of a generating unit, transmission line, or other facility for emergency reasons., The condition in which the equipment is unavailable due to unanticipated failure.[1] Related Terms transmission lines, transmission line References ↑ Glossary of Terms Used in Reliability Standards An i LikeLike UnlikeLike You like this.Sign Up to see what your friends like. nline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Forced_Outage&oldid=480310" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data

33

August 14, 2003 Power Outages Â… Announcement  

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

Ellen P. Vancko Ellen P. Vancko evancko@nerc.com Power Outage Update ⎯ 8/16/2003 11 a.m. EDT The bulk electric transmission system in the United States and Canada has been restored and is operating reliably. Many of the generating units that tripped off line during the outage have returned to service and additional generating units are expected to return to service over the weekend. Virtually all customers have been returned to electric service, although some customers will continue to experience rotating outages due to generating capacity availability. Some rotating outages may also be necessary on Monday depending on the status of the generating units returning to service and the electrical demand. "NERC is conducting a thorough investigation into this event in conjunction with the regional

34

Market Assessment of Planned Refinery Outages March Â… June 2009  

Gasoline and Diesel Fuel Update (EIA)

09)/1 09)/1 Market Assessment of Planned Refinery Outages March - June 2009 March 2009 Energy Information Administration Office of Oil and Gas U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be attributed to the Energy Information Administration and should not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization. Service Reports are prepared by the Energy Information Administration upon special request and are based on assumptions specified by the requestor.

35

Microsoft Word - 112706 Final Outage Letter PUBLIC.doc  

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

CRITICAL ENERGY INFRASTRUCTURE INFORMATION CRITICAL ENERGY INFRASTRUCTURE INFORMATION REMOVED FOR PRIVILEGED TREATMENT November 27, 2006 Lawrence Mansueti Office of Electricity Delivery and Energy Reliability U.S. Department of Energy Rm. 8H-033 1000 Independence Avenue Washington, D.C. 20585 Re: Potomac River Generating Station Department of Energy Case No. EO-05-01 Dear Mr. Mansueti: Potomac Electric Power Company ("Pepco"), on behalf of itself and PJM Interconnection, L.L.C. ("PJM"), is providing you with information regarding the planned transmission outages that are scheduled for the upcoming months. In accordance with its internal procedures developed pursuant to the December 20, 2005 order in the captioned proceeding, Order No. 202-05-03 ("December 20 Order"), Pepco will provide

36

Contingency Analysis of Cascading Line Outage Events  

SciTech Connect (OSTI)

As the US power systems continue to increase in size and complexity, including the growth of smart grids, larger blackouts due to cascading outages become more likely. Grid congestion is often associated with a cascading collapse leading to a major blackout. Such a collapse is characterized by a self-sustaining sequence of line outages followed by a topology breakup of the network. This paper addresses the implementation and testing of a process for N-k contingency analysis and sequential cascading outage simulation in order to identify potential cascading modes. A modeling approach described in this paper offers a unique capability to identify initiating events that may lead to cascading outages. It predicts the development of cascading events by identifying and visualizing potential cascading tiers. The proposed approach was implemented using a 328-bus simplified SERC power system network. The results of the study indicate that initiating events and possible cascading chains may be identified, ranked and visualized. This approach may be used to improve the reliability of a transmission grid and reduce its vulnerability to cascading outages.

Thomas L Baldwin; Magdy S Tawfik; Miles McQueen

2011-03-01T23:59:59.000Z

37

Definition: Cascading Outage | Open Energy Information  

Open Energy Info (EERE)

Cascading Outage Cascading Outage Jump to: navigation, search Dictionary.png Cascading Outage The uncontrolled successive loss of system elements triggered by an incident at any location. Cascading results in widespread electric service interruption that cannot be restrained from sequentially spreading beyond an area predetermined by studies.[1] View on Wikipedia Wikipedia Definition A cascading failure is a failure in a system of interconnected parts in which the failure of a part can trigger the failure of successive parts. Such a failure may happen in many types of systems, including power transmission, computer networking, finance and bridges. Cascading failures usually begin when one part of the system fails. When this happens, nearby nodes must then take up the slack for the failed component. This overloads

38

Triple voltage dc-to-dc converter and method  

DOE Patents [OSTI]

A circuit and method of providing three dc voltage buses and transforming power between a low voltage dc converter and a high voltage dc converter, by coupling a primary dc power circuit and a secondary dc power circuit through an isolation transformer; providing the gating signals to power semiconductor switches in the primary and secondary circuits to control power flow between the primary and secondary circuits and by controlling a phase shift between the primary voltage and the secondary voltage. The primary dc power circuit and the secondary dc power circuit each further comprising at least two tank capacitances arranged in series as a tank leg, at least two resonant switching devices arranged in series with each other and arranged in parallel with the tank leg, and at least one voltage source arranged in parallel with the tank leg and the resonant switching devices, said resonant switching devices including power semiconductor switches that are operated by gating signals. Additional embodiments having a center-tapped battery on the low voltage side and a plurality of modules on both the low voltage side and the high voltage side are also disclosed for the purpose of reducing ripple current and for reducing the size of the components.

Su, Gui-Jia (Knoxville, TN)

2008-08-05T23:59:59.000Z

39

North American Electric Reliability Council Power Outage Update |  

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

Power Outage Update Power Outage Update North American Electric Reliability Council Power Outage Update The bulk electric transmission system in the United States and Canada has been restored and is operating reliably. Many of the generating units that tripped off line during the outage have returned to service and additional generating units are expected to return to service over the weekend. Virtually all customers have been returned to electric service, although some customers will continue to experience rotating outages due to generating capacity availability. North American Electric Reliability Council Power Outage Update More Documents & Publications Electric System Update: Sunday August 17, 2003 North American Electric Reliability Council Outage Announcement NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report

40

Outage management and health physics issue, 2006  

SciTech Connect (OSTI)

The focus of the May-June issue is on outage management and health physics. Major articles/reports in this issue include: A design with experience for the U.S., by Michael J. Wallace, Constellation Generation Group; Hope to be among the first, by Randy Hutchinson, Entergy Nuclear; Plans to file COLs in 2008, by Garry Miller, Progress Energy; Evolution of ICRP's recommendations, by Lars-Erik Holm, ICRP; European network on education and training in radiological protection, by Michele Coeck, SCK-CEN, Belgium; Outage managment: an important tool for improving nuclear power plant performance, by Thomas Mazour and Jiri Mandula, IAEA, Austria; and Plant profile: Exploring new paths to excellence, by Anne Thomas, Exelon Nuclear.

Agnihotri, Newal (ed.)

2006-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

Advanced Outage and Control Center: Strategies for Nuclear Plant Outage Work Status Capabilities  

SciTech Connect (OSTI)

The research effort is a part of the Light Water Reactor Sustainability (LWRS) Program. LWRS is a research and development program sponsored by the Department of Energy, performed in close collaboration with industry to provide the technical foundations for licensing and managing the long-term, safe and economical operation of current nuclear power plants. The LWRS Program serves to help the US nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The Outage Control Center (OCC) Pilot Project was directed at carrying out the applied research for development and pilot of technology designed to enhance safe outage and maintenance operations, improve human performance and reliability, increase overall operational efficiency, and improve plant status control. Plant outage management is a high priority concern for the nuclear industry from cost and safety perspectives. Unfortunately, many of the underlying technologies supporting outage control are the same as those used in the 1980’s. They depend heavily upon large teams of staff, multiple work and coordination locations, and manual administrative actions that require large amounts of paper. Previous work in human reliability analysis suggests that many repetitive tasks, including paper work tasks, may have a failure rate of 1.0E-3 or higher (Gertman, 1996). With between 10,000 and 45,000 subtasks being performed during an outage (Gomes, 1996), the opportunity for human error of some consequence is a realistic concern. Although a number of factors exist that can make these errors recoverable, reducing and effectively coordinating the sheer number of tasks to be performed, particularly those that are error prone, has the potential to enhance outage efficiency and safety. Additionally, outage management requires precise coordination of work groups that do not always share similar objectives. Outage managers are concerned with schedule and cost, union workers are concerned with performing work that is commensurate with their trade, and support functions (safety, quality assurance, and radiological controls, etc.) are concerned with performing the work within the plants controls and procedures. Approaches to outage management should be designed to increase the active participation of work groups and managers in making decisions that closed the gap between competing objectives and the potential for error and process inefficiency.

Gregory Weatherby

2012-05-01T23:59:59.000Z

42

RESOLVED: Projectb filesystem outage July 9, 2012  

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

RESOLVED: Projectb filesystem outage July 9, 2012 RESOLVED: Projectb filesystem outage July 9, 2012 RESOLVED: Projectb filesystem outage July 9, 2012 July 9, 2012 (0 Comments) The projectb filesystem had a hardware failure that potentially generated I/O errors. The filesystem logs indicate that the earliest abnormal event on the filesystem occurred at 9:19AM and the filesystem was taken down for maintenance at 10:42AM. The filesystem returned to service at 11:20AM. Jobs running on the cluster would not have been able to read from or write to the projectb filesystem between 10:42AM and 11:20AM. Between 9:19AM and 10:42AM one out of the 20 GPFS controllers on projectb was down, and didn't failover (as it should have). This means: 1/20 file I/O operations could have failed between 9:19AM and 10:42AM If your job was performing a large number of short reads and writes, then

43

Summary of Market Assessment of Upcoming Planned Refinery Outages  

Gasoline and Diesel Fuel Update (EIA)

Summary of Market Assessment of Upcoming Planned Refinery Outages Summary of Market Assessment of Upcoming Planned Refinery Outages Summary of Market Assessment of Upcoming Planned Refinery Outages Market Assessment of Upcoming Planned Refinery Outages, December 2008 - March 2009 reviews planned U.S. refinery outages from December 2008 though March 2009 in order to identify any regions where outages might create enough supply pressure to impact prices significantly. As required under Section 804 of the Energy Independence and Security Act of 2007 (Pub. L. 110-140), this report reviews the supply implications of planned refinery outages for December 2008 through March 2009, which covers the winter period when demand for distillate fuels (diesel and heating oil) is high. As a result, emphasis in this report is on distillate rather than gasoline. Refinery outages are the result of planned maintenance and unplanned outages. Maintenance is usually scheduled during the times when demand is lowest - in the first quarter and again in the fall. Unplanned outages, which occur for many reasons including mechanical failures, fires, and flooding, can occur at any time.

44

Definition: Outage Detection/Reporting | Open Energy Information  

Open Energy Info (EERE)

Outage Detection/Reporting Outage Detection/Reporting Jump to: navigation, search Dictionary.png Outage Detection/Reporting A system utilizing smart meters and AMI that can notify a utility of customer power outages when the power to meters is interrupted. Generally speaking, this can be done by utilizing meters that can send a "last gasp" signal to the head-end system upon losing power, or by periodically polling meters to check status.[1] Related Terms power, advanced metering infrastructure, system References ↑ https://www.smartgrid.gov/category/technology/outage_detectionreporting [[Cat Like Like You like this.Sign Up to see what your friends like. egory: Smart Grid Definitionssmart grid,smart grid, |Template:BASEPAGENAME]]smart grid,smart grid, Retrieved from "http://en.openei.org/w/index.php?title=Definition:Outage_Detection/Reporting&oldid=502576

45

Outage Capacity and Code Design for Dying Channels  

E-Print Network [OSTI]

. The outage exponents are also studied to reveal how fast the outage probability improves over the number of sub-channels. Besides the information-theoretical results, we also study a practical coding scheme for the dying binary erasure channel (DBEC), which...

Zeng, Meng

2012-10-19T23:59:59.000Z

46

Outage Probability Analysis for Asynchronous Cognitive Radio Networks  

E-Print Network [OSTI]

and the secondary network co-exist. Solid lines and dashed lines represent the data transmissionOutage Probability Analysis for Asynchronous Cognitive Radio Networks Chulhee Jang and Jae Hong Lee network in a spectrum sharing asynchronous cognitive radio (CR) network. We analyze the outage probability

Lee, Jae Hong

47

Homeowners: Respond to Power Outages | Department of Energy  

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

Power Outages Power Outages Homeowners: Respond to Power Outages Homeowners: Respond to Power Outages After a disaster, electric utilities and government officials will first work to restore power to critical infrastructure like power plants and transmission lines, water treatment facilities, and telecommunications networks, and also to hospitals, critical care facilities, and emergency response agencies. It may take several days or even weeks to restore power to individual homeowners, but here's what you can do to help prepare and recover power more quickly: Charge mobile devices-If you have power, charge your cell phones, laptops, and other mobile devices so they'll have the maximum amount of battery power stored in the event of a power outage. These devices will help you communicate with your power company, and they'll help you stay

48

Power Electronics' Circuit Topology the Basic Switching Cells Fang Z. Peng Leon M. Tolbert, Faisal Khan  

E-Print Network [OSTI]

be obtained for the construction and decomposition of existing power electronic circuits. New power conversion, inverter, N- cell, P-cell. I. INTRODUCTION Power electronic circuits that range from dc-dc, ac-dc, dc- acPower Electronics' Circuit Topology ­ the Basic Switching Cells Fang Z. Peng Leon M. Tolbert

Tolbert, Leon M.

49

Technology Integration Initiative In Support of Outage Management  

SciTech Connect (OSTI)

Plant outage management is a high priority concern for the nuclear industry from cost and safety perspectives. Often, command and control during outages is maintained in the outage control center where many of the underlying technologies supporting outage control are the same as those used in the 1980’s. This research reports on the use of advanced integrating software technologies and hand held mobile devices as a means by which to reduce cycle time, improve accuracy, and enhance transparency among outage team members. This paper reports on the first phase of research supported by the DOE Light Water Reactor Sustainability (LWRS) Program that is performed in close collaboration with industry to examine the introduction of newly available technology allowing for safe and efficient outage performance. It is thought that this research will result in: improved resource management among various plant stakeholder groups, reduced paper work, and enhanced overall situation awareness for the outage control center management team. A description of field data collection methods, including personnel interview data, success factors, end-user evaluation and integration of hand held devices in achieving an integrated design are also evaluated. Finally, the necessity of obtaining operations cooperation support in field studies and technology evaluation is acknowledged.

Gregory Weatherby; David Gertman

2012-07-01T23:59:59.000Z

50

Economic Benefits of Increasing Electric Grid Resilience to Weather Outages  

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

Economic Benefits of Increasing Electric Grid Resilience to Weather Economic Benefits of Increasing Electric Grid Resilience to Weather Outages Economic Benefits of Increasing Electric Grid Resilience to Weather Outages In June 2011, President Obama released A Policy Framework for the 21st Century Grid which set out a four-pillared strategy for modernizing the electric grid. The initiative directed billions of dollars toward investments in 21st century smart grid technologies focused at increasing the grid's efficiency, reliability, and resilience, and making it less vulnerable to weather-related outages and reducing the time it takes to restore power after an outage occurs. Grid resilience is increasingly important as climate change increases the frequency and intensity of severe weather. Greenhouse gas emissions are elevating air and water temperatures around the world. Scientific research

51

Development of Methodologies for Technology Deployment for Advanced Outage Control Centers that Improve Outage Coordination, Problem Resolution and Outage Risk Management  

SciTech Connect (OSTI)

This research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which is a research and development (R&D) program sponsored by Department of Energy (DOE) and performed in close collaboration with industry R&D programs that provides the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRS program serves to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The long term viability of existing nuclear power plants in the U.S. will depend upon maintaining high capacity factors, avoiding nuclear safety issues and reducing operating costs. The slow progress in the construction on new nuclear power plants has placed in increased importance on maintaining the output of the current fleet of nuclear power plants. Recently expanded natural gas production has placed increased economic pressure on nuclear power plants due to lower cost competition. Until recently, power uprate projects had steadily increased the total output of the U.S. nuclear fleet. Errors made during power plant upgrade projects have now removed three nuclear power plants from the U.S. fleet and economic considerations have caused the permanent shutdown of a fourth plant. Additionally, several utilities have cancelled power uprate projects citing economic concerns. For the past several years net electrical generation from U.S. nuclear power plants has been declining. One of few remaining areas where significant improvements in plant capacity factors can be made is in minimizing the duration of refueling outages. Managing nuclear power plant outages is a complex and difficult task. Due to the large number of complex tasks and the uncertainty that accompanies them, outage durations routinely exceed the planned duration. The ability to complete an outage on or near schedule depends upon the performance of the outage management organization. During an outage, the outage control center (OCC) is the temporary command center for outage managers and provides several critical functions for the successful execution of the outage schedule. Essentially, the OCC functions to facilitate information inflow, assist outage management in processing information and to facilitate the dissemination of information to stakeholders. Currently, outage management activities primarily rely on telephone communication, face to face reports of status and periodic briefings in the OCC. Much of the information displayed in OCCs is static and out of date requiring an evaluation to determine if it is still valid. Several advanced communication and collaboration technologies have shown promise for facilitating the information flow into, across and out of the OCC. Additionally, advances in the areas of mobile worker technologies, computer based procedures and electronic work packages can be leveraged to improve the availability of real time status to outage managers.

Shawn St. Germain; Ronald Farris; Heather Medeman

2013-09-01T23:59:59.000Z

52

SAMPLE RESULTS FROM MCU SOLIDS OUTAGE  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) has received several solid and liquid samples from MCU in an effort to understand and recover from the system outage starting on April 6, 2014. SRNL concludes that the presence of solids in the Salt Solution Feed Tank (SSFT) is the likely root cause for the outage, based upon the following discoveries ? A solids sample from the extraction contactor #1 proved to be mostly sodium oxalate ? A solids sample from the scrub contactor#1 proved to be mostly sodium oxalate ? A solids sample from the Salt Solution Feed Tank (SSFT) proved to be mostly sodium oxalate ? An archived sample from Tank 49H taken last year was shown to contain a fine precipitate of sodium oxalate ? A solids sample from the extraction contactor #1 drain pipe from extraction contactor#1 proved to be mostly sodium aluminosilicate ? A liquid sample from the SSFT was shown to have elevated levels of oxalate anion compared to the expected concentration in the feed Visual inspection of the SSFT indicated the presence of precipitated or transferred solids, which were likely also in the Salt Solution Receipt Tank (SSRT). The presence of the solids coupled with agitation performed to maintain feed temperature resulted in oxalate solids migration through the MCU system and caused hydraulic issues that resulted in unplanned phase carryover from the extraction into the scrub, and ultimately the strip contactors. Not only did this carryover result in the Strip Effluent (SE) being pushed out of waste acceptance specification, but it resulted in the deposition of solids into several of the contactors. At the same time, extensive deposits of aluminosilicates were found in the drain tube in the extraction contactor #1. However it is not known at this time how the aluminosilicate solids are related to the oxalate solids. The solids were successfully cleaned out of the MCU system. However, future consideration must be given to the exclusion of oxalate solids into the MCU system. There were 53 recommendations for improving operations recently identified. Some additional considerations or additional details are provided below as recommendations. ? From this point on, IC-Anions analyses of the DSSHT should be part of the monthly routine analysis in order to spot negative trends in the oxalate leaving the MCU system. Care must be taken to monitor the oxalate content to watch for sudden precipitation of oxalate salts in the system. ? Conduct a study to optimize the cleaning strategy at ARP-MCU through decreasing the concentration or entirely eliminating the oxalic acid. ? The contents of the SSFT should remain unagitated. Routine visual observation should be maintained to ensure there is not a large buildup of solids. As water with agitation provided sufficient removal of the solids in the feed tank, it should be considered as a good means for dissolving oxalate solids if they are found in the future. ? Conduct a study to improve prediction of oxalate solubility in salt batch feed materials. As titanium and mercury have been found in various solids in this report, evaluate if either element plays a role in oxalate solubility during processing. ? Salt batch characterization focuses primarily on characterization and testing of unaltered Tank 21H material; however, non-typical feeds are developed through cleaning, washing, and/or sump transfers. As these solutions are processed through MCU, they may precipitate solids or reduce performance. Salt batch characterization and testing should be expanded to encompass a broader range of feeds that may be processed through ARPMCU.

Peters, T.; Washington, A.; Oji, L.; Coleman, C.; Poirier, M.

2014-09-22T23:59:59.000Z

53

ORNL Network Outage, Friday, April 15, 9:30 p.m. to Date  

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

Updated 4/25/2011 Updated 4/25/2011 All externally accessible ORNL servers, including the ORNL DAAC Web Site, http://daac.ornl.gov are experiencing network outages or slow connectivity at this time. We apologize for this inconvenience and appreciate your patience during our down time. At this time you can explore our Web site and access data products including MODIS Land Products Subsets, albeit slowly. However, the following Web sites and tools have been taken off the Internet and are not available: Mercury (DAAC Simple Search and Advanced Product Search) WebGIS Spatial Data Access Tool (SDAT) Thematic Real-time Environmental Distributed Data Services (THREDDS) Data Server (TDS) MAST-DC FLUXNET Beija-flor (at ORNL) You may experience problems signing-in or registering with our Web site.

54

Market Assessment of Refinery Outages Planned for October 2010 through January 2011  

Gasoline and Diesel Fuel Update (EIA)

10)/2 10)/2 Market Assessment of Refinery Outages Planned for October 2010 through January 2011 November 2010 Energy Information Administration Office of Petroleum, Gas, and Biofuels Analysis U.S. Department of Energy Washington, DC 20585 This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. E nergy Information Adminis tration Market As s es s ment of P lanned R

55

Comments from the Virginia Department of Environmental Quality on PEPCO's Intention to Commence Planned Transmission Outages  

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

COMMONWEALTH of VIRGINIA COMMONWEALTH of VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY Street address: 629 East Main Street, Richmond, Virginia 23219 Mailing address: P.O. Box 10009, Richmond, Virginia 23240 Fax (804) 698-4500 TDD (804) 698-4021 www.deq.virginia.gov W. Tayloe Murphy, Jr. Secretary of Natural Resources Robert G. Burnley Director (804) 698-4000 1-800-592-5482 January 5, 2006 The Honorable Samuel W. Bodman Secretary of Energy United States Department of Energy 1000 Independence Avenue, S.W. Washington, D.C. 20585 Re: District of Columbia Public Service Commission Docket No. EO-05-01 Dear Secretary Bodman: The Virginia Department of Environmental Quality (DEQ) strongly opposes the Potomac Electric Power Company's (PEPCO) intention to commence planned maintenance outages of the

56

Market Assessment of Refinery Outages Planned for October 2009 through January 2010  

Gasoline and Diesel Fuel Update (EIA)

09)/2 09)/2 Market Assessment of Refinery Outages Planned for October 2009 through January 2010 November 2009 Energy Information Administration Office of Oil and Gas U.S. Department of Energy Washington, DC 20585 This report was prepared by the U.S. Energy Information Administration (EIA), the independent statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views herein should not be construed as representing those of the Department or the Administration. Preface and Contacts The Energy Information Administration (EIA) is the independent statistical and analytical

57

Notification of Planned 230kV Outage at Potomac River Generating Station  

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

Sent: Wednesday, May 16, 2007 4:49 PM To: #DOE_Notification@pepco.com Subject: Notification of Planned 230kV Outage at Potomac River Generating Station To Whom It May Concern: This morning Pepco and PJM observed that the generation at the Potomac River Generating Station was having difficulty matching the station generation requirement to the Potomac River area load. Mirant has also informed Pepco and PJM that several generating units were experiencing equipment problems which required them to reduce unit and total plant output. Based on these observations and information received from Mirant, Pepco has elected to cease the current work activities underway on xxxxx high voltage circuit and we will be placing this transmission line back in service this afternoon.

58

High voltage DC power supply  

DOE Patents [OSTI]

A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively. 7 figs.

Droege, T.F.

1989-12-19T23:59:59.000Z

59

High voltage DC power supply  

DOE Patents [OSTI]

A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively.

Droege, Thomas F. (Batavia, IL)

1989-01-01T23:59:59.000Z

60

A Review of Power Outages and Restoration Following the June 2012 Derecho  

Broader source: Energy.gov [DOE]

This report reviews power outages and restoration efforts following the June 29, 2012 Derecho and compares them to outages and restoration efforts following other spring and summer storms in the...

Note: This page contains sample records for the topic "dc circuit outage" 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

Number and propagation of line outages in cascading events in electric power transmission systems  

E-Print Network [OSTI]

Number and propagation of line outages in cascading events in electric power transmission systems of transmission lines. We estimate from observed utility data how transmission line outages propagate, and obtain of transmission lines. The multiple mechanisms involved these cascading outages are many and varied, and the power

Dobson, Ian

62

The Approximation of Outage Probability and the Trade-off between Capacity and Diversity for the  

E-Print Network [OSTI]

line channel model in [5]) at high SNR, and give approximations of the outage probability at lowThe Approximation of Outage Probability and the Trade-off between Capacity and Diversity of the equivalent FIR channel filter. The error probability is bounded by the outage probability and the error

Scharf, Louis

63

On PMU Location Selection for Line Outage Detection in Wide-area Transmission Networks  

E-Print Network [OSTI]

1 On PMU Location Selection for Line Outage Detection in Wide-area Transmission Networks Yue Zhao locations to collect voltage phase angle measurements for detecting line outages in wide-area transmission measurements. Index Terms--Phasor measurement unit, location selection, outage detection, transmission networks

Zhao, Yue

64

Onsite Wastewater Treatment Systems: Responding to Power Outages and Floods  

E-Print Network [OSTI]

People and the environment can be harmed if a home's onsite wastewater treatment system does not work properly after a flood or power outage. This publication explains the steps to take after such an event to get the system back into service. 4 pp...

Lesikar, Bruce J.; Mechell, Justin; Alexander, Rachel

2008-10-23T23:59:59.000Z

65

Preventing power outages Power system contingency analysis on the GPU  

E-Print Network [OSTI]

problem. Moreover, the power system has to keep functioning properly even when a transmission line failsPreventing power outages Power system contingency analysis on the GPU To provide electricity generators, nuclear power plants, wind turbines, etc.) and a network of lines and cables to transmit

Vuik, Kees

66

A framework and review of customer outage costs: Integration and analysis of electric utility outage cost surveys  

SciTech Connect (OSTI)

A clear understanding of the monetary value that customers place on reliability and the factors that give rise to higher and lower values is an essential tool in determining investment in the grid. The recent National Transmission Grid Study recognizes the need for this information as one of growing importance for both public and private decision makers. In response, the U.S. Department of Energy has undertaken this study, as a first step toward addressing the current absence of consistent data needed to support better estimates of the economic value of electricity reliability. Twenty-four studies, conducted by eight electric utilities between 1989 and 2002 representing residential and commercial/industrial (small, medium and large) customer groups, were chosen for analysis. The studies cover virtually all of the Southeast, most of the western United States, including California, rural Washington and Oregon, and the Midwest south and east of Chicago. All variables were standardized to a consistent metric and dollar amounts were adjusted to the 2002 CPI. The data were then incorporated into a meta-database in which each outage scenario (e.g., the lost of electric service for one hour on a weekday summer afternoon) is treated as an independent case or record both to permit comparisons between outage characteristics and to increase the statistical power of analysis results. Unadjusted average outage costs and Tobit models that estimate customer damage functions are presented. The customer damage functions express customer outage costs for a given outage scenario and customer class as a function of location, time of day, consumption, and business type. One can use the damage functions to calculate outage costs for specific customer types. For example, using the customer damage functions, the cost experienced by an ''average'' customer resulting from a 1 hour summer afternoon outage is estimated to be approximately $3 for a residential customer, $1,200 for small-medium commercial and industrial customer, and $82,000 for large commercial and industrial customer. Future work to improve the quality and coverage of information on the value of electricity reliability to customers is described.

Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph

2003-11-01T23:59:59.000Z

67

HPSS Outage Tue Mar 19 - Fri Mar 22  

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

HPSS HPSS Outage Tue Mar 19 - Fri Mar 22 HPSS Outage Tue Mar 19 - Fri Mar 22 March 12, 2013 by Francesca Verdier (0 Comments) The NERSC HPSS "User" system (archive.nersc.gov) will be down for four days from Tue Mar 19 07:00 to Fri Mar 22 17:00). The system will be upgraded from HPSS version 6.2 to version 7.3. This new version of the HPSS server software is not compatible with current GridFTP servers. This means the NERSC HPSS systems will not support any grid-based transfer methods (including GlobusOnline) following the upgrade. We expect to install a fix for this problem during a scheduled downtime by the end of April. This is a major upgrade that will require users of the HPSS User system to switch to new versions of the HPSS client software tools hsi and htar.

68

Short-Term Energy Outlook Supplement: 2013 Outlook for Gulf of Mexico Hurricane-Related Production Outages  

U.S. Energy Information Administration (EIA) Indexed Site

2013 Outlook for Gulf of Mexico 2013 Outlook for Gulf of Mexico Hurricane-Related Production Outages June 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | STEO Supplement: 2013 Hurricane Outlook i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other federal agencies. June 2013 U.S. Energy Information Administration | STEO Supplement: 2013 Hurricane Outlook 1

69

Repair duration effects on distribution system reliability indices and customer outage costs.  

E-Print Network [OSTI]

??The distribution system is part of the electric power system that links the bulk transmission system and the individual customers. Approximately 80 percent of outages… (more)

Shakya, Binendra

2013-01-01T23:59:59.000Z

70

Demultiplexer circuit for neural stimulation  

DOE Patents [OSTI]

A demultiplexer circuit is disclosed which can be used with a conventional neural stimulator to extend the number of electrodes which can be activated. The demultiplexer circuit, which is formed on a semiconductor substrate containing a power supply that provides all the dc electrical power for operation of the circuit, includes digital latches that receive and store addressing information from the neural stimulator one bit at a time. This addressing information is used to program one or more 1:2.sup.N demultiplexers in the demultiplexer circuit which then route neural stimulation signals from the neural stimulator to an electrode array which is connected to the outputs of the 1:2.sup.N demultiplexer. The demultiplexer circuit allows the number of individual electrodes in the electrode array to be increased by a factor of 2.sup.N with N generally being in a range of 2-4.

Wessendorf, Kurt O; Okandan, Murat; Pearson, Sean

2012-10-09T23:59:59.000Z

71

Washington, DC'  

Office of Legacy Management (LM)

of. Energy of. Energy Washington, DC' 26585 , The Honorable Gene Eriquez .~ City Hall I55 Deer Hill Avenue + Danbury/Connecticut 06180 .. -r. - Dear Mayor Eriquez: Secretary of Energy Hazel O!Leary has .announced a knew approach -to openness in. the Department of Energy (DOE) and its communications with the public. In support of th,is initiative, we are,pleased to forward the enclosed information, related to the former Sperry Products,'.Inc. site in your jurisdiction ,that performed,work for DOE or its predecessor agencies. Th,is informatipn is provided,for your information, use, and retenti~oh. DOE's Formeily Utilized Sites Remedial Action Program is responsible for. identification of sites used by'DOE's predecessor agencies, determining their current radiological condition and,

72

Annual Steam System Maintenance Outage (2014) Beginning on Sunday, June 8th  

E-Print Network [OSTI]

Annual Steam System Maintenance Outage (2014) Beginning on Sunday, June 8th at 12:00pm (Noon), the Central Utility Plant (CUP), which supplies steam service to over 100 buildings on the Newark campus, will be shut down for the annual Steam System Maintenance Outage. This effort is necessary each year to ensure

Firestone, Jeremy

73

Outage Detection in Power Distribution Networks with Optimally-Deployed Power Flow Sensors  

E-Print Network [OSTI]

Outage Detection in Power Distribution Networks with Optimally-Deployed Power Flow Sensors Yue Zhao deployed real-time power flow sensors and that of load estimates via Advanced Metering Infrastructure (AMI within each subtree only the sensors at its root and on its boundary are used. Outage detection

Zhao, Yue

74

Outage Detection via Real-time Social Stream Analysis: Leveraging the Power of Online Complaints  

E-Print Network [OSTI]

disruptions. Each is described below with their ac- companying defects. Internal monitoring systems. NetflixOutage Detection via Real-time Social Stream Analysis: Leveraging the Power of Online Complaints documents the design and development of an outage detection system for the online services provided

Dekhtyar, Alexander

75

Bi-directional dc-dc Converter  

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

Nov Dec Phase II, Timeline 2009 Jan Feb Mar Apr May Jun Jul Aug Sep Vehicle Interface, FMEA and MTBF Dc-dc Fabrication Validation Data Performance Validation BOM and Cost analysis...

76

Printed Circuits  

Science Journals Connector (OSTI)

... a leading contributor to the technology of printed circuits, and the inventor of the printed foil technique now in general use.

J. C. CLULEY

1959-05-30T23:59:59.000Z

77

Bi-directional dc-dc Converter  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

78

Bi-directional dc-dc Converter  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

79

U.S. - Canada Power System Outage Task Force: Final Report on the  

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

- Canada Power System Outage Task Force: Final Report on the - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations On August 14, 2003, the largest power blackout in North American history affected an area with an estimated 50 million people and 61,800 megawatts (MW) of electric load in the states of Ohio, Michigan, Pennsylvania, New York, Vermont, Massachusetts, Connecticut and New Jersey, and the Canadian province of Ontario. U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations More Documents & Publications Blackout 2003: Blackout Final Implementation Report Blackout 2003: The August 14, 2003 Blackout One Year Later: Actions Taken

80

The detection, prevention and mitigation of cascading outages in the power system  

E-Print Network [OSTI]

and their neighboring lines . . . . . . . . . . . . . . 96 IX Transmission lines and their thermal limits (in MVA value) . . . . . 104 X Top 6 line outages ranked by vulnerability index and margin index . 105 XI Top 6 line outages ranked by vulnerability index based...116 120 1 CHAPTER I INTRODUCTION A. Problem Statement Electric power system is one of the biggest and most complex man-made sys- tems. It is composed of thousands of generators, transformers, transmission lines, substations, loads and extensive...

Song, Hongbiao

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

Multiphase soft switched DC/DC converter and active control technique for fuel cell ripple current elimination  

DOE Patents [OSTI]

DC/DC converter has a transformer having primary coils connected to an input side and secondary coils connected to an output side. Each primary coil connects a full-bridge circuit comprising two switches on two legs, the primary coil being connected between the switches on each leg, each full-bridge circuit being connected in parallel wherein each leg is disposed parallel to one another, and the secondary coils connected to a rectifying circuit. An outer loop control circuit that reduces ripple in a voltage reference has a first resistor connected in series with a second resistor connected in series with a first capacitor which are connected in parallel with a second capacitor. An inner loop control circuit that reduces ripple in a current reference has a third resistor connected in series with a fourth resistor connected in series with a third capacitor which are connected in parallel with a fourth capacitor.

Lai, Jih-Sheng (Blacksburg, VA); Liu, Changrong (Sunnyvale, CA); Ridenour, Amy (Salem, VA)

2009-04-14T23:59:59.000Z

82

Reliability models of wind farms considering wind speed correlation and WTG outage  

Science Journals Connector (OSTI)

Abstract Wind speed correlation and wind turbine generator (WTG) outage are two factors affecting the reliability model of wind farms, but they are not addressed simultaneously in the existing literature. Meanwhile, WTG outage is reported to be dependent with wind speed to some extent. Therefore, the extended reliability models of wind farms incorporating both of these two factors and the dependency between WTG outage and wind speed are proposed in this paper. To consider the uncertainties and dependencies of wind speed and WTG failure, Copula method is applied to simulate correlated random variables representing for wind speed and the number of failed WTG units. Moreover, the linear apportioning technique is used to create multistate reliability models of wind farms from hourly wind power models. A number of sensitivity analyses on the modified IEEE RTS with wind power are conducted to validate the proposed reliability models for generation adequacy assessment. Case studies show that the generation adequacy indices increase with the correlation of wind speed and WTG forced outage rate (FOR). It is meaningful to point out that the effect of dependency between wind speed and WTG FOR on generation adequacy is minimal when WTG outages are independent, but it will be substantially larger when WTG outages are highly dependent. The proposed multistate reliability models of wind farms provide foundation for the reliability assessment of power systems with wind power integrated.

Fan Chen; Fangxing Li; Zhinong Wei; Guoqiang Sun; Jun Li

2015-01-01T23:59:59.000Z

83

Course Outline ENG 2MM3 Electrical Circuits & Power  

E-Print Network [OSTI]

-Phase Induction Motor; 5. DC Generators & DC Motors; 6. Efficiency/Heating of Electric Machines; 7. ActiveCourse Outline ENG 2MM3 Electrical Circuits & Power Winter 2010 Instructor: Prof. Matiar Howlader Web Page: www.ece.mcmaster.ca/~mrhowlader/ENG2MM3Notes Text Books: 1. Electrical Power and Controls

Haykin, Simon

84

Course Outline ENG 2MM3 Electrical Circuits & Power  

E-Print Network [OSTI]

-Phase Induction Motor; 5. DC Generators & DC Motors; 6. Efficiency/Heating of Electric Machines; 7. ActiveCourse Outline ENG 2MM3 Electrical Circuits & Power Fall 2010 Instructor: Prof. Matiar Howlader Web Page: www.ece.mcmaster.ca/~mrhowlader/ENG2MM3Notes Text Books: 1. Electrical Power and Controls

Haykin, Simon

85

A miniature transformer/dc?dc converter for implantable medical devices  

Science Journals Connector (OSTI)

This paper presents a new technique for the design of a miniature dc?dc converter used in energy producing implantable devices such as defibrillators and advanced pacemakers. This converter is inserted in such a device and is used to boost the voltage from a low voltage implanted battery to high voltage energy storage capacitors in a short period of time. The stored energy is then delivered when needed through an energy delivery circuit in order to stimulate or defibrillate the heart. The converter takes the form of a flyback topology which includes a miniature transformer and a specialized control circuit. The transformer was designed using a new numerical synthesis method which utilizes finite elements and dynamic programming for predicting the geometries of the transformer’s magnetic circuit. The final transformer design satisfied the performance criteria and provided means for selecting the converter components. The obtained performance results for the transformer and the dc?dc converter were in excellent agreement with laboratory performance tests.

Osama A. Mohammed; W. Kinzy Jones

1988-01-01T23:59:59.000Z

86

Status Report on the Development of Micro-Scheduling Software for the Advanced Outage Control Center Project  

SciTech Connect (OSTI)

The long-term viability of existing nuclear power plants (NPPs) in the United States (U.S.) is dependent upon a number of factors, including maintaining high capacity factors, maintaining nuclear safety, and reducing operating costs, particularly those associated with refueling outages. Refueling outages typically take 20-30 days, and for existing light water NPPs in the U.S., the reactor cannot be in operation during the outage. Furthermore, given that many NPPs generate between $1-1.5 million/day in revenue when in operation, there is considerable interest in shortening the length of refueling outages. Yet, refueling outages are highly complex operations, involving multiple concurrent and dependent activities that are difficult to coordinate. Finding ways to improve refueling outage performance while maintaining nuclear safety has proven to be difficult. The Advanced Outage Control Center project is a research and development (R&D) demonstration activity under the Light Water Reactor Sustainability (LWRS) Program. LWRS is a R&D program which works with industry R&D programs to establish technical foundations for the licensing and managing of long-term, safe, and economical operation of current NPPs. The Advanced Outage Control Center project has the goal of improving the management of commercial NPP refueling outages. To accomplish this goal, this INL R&D project is developing an advanced outage control center (OCC) that is specifically designed to maximize the usefulness of communication and collaboration technologies for outage coordination and problem resolution activities. This report describes specific recent efforts to develop a capability called outage Micro-Scheduling. Micro-Scheduling is the ability to allocate and schedule outage support task resources on a sub-hour basis. Micro-Scheduling is the real-time fine-tuning of the outage schedule to react to the actual progress of the primary outage activities to ensure that support task resources are optimally deployed with the least amount of delay and unproductive use of resources. The remaining sections of this report describe in more detail the scheduling challenges that occur during outages, how a Micro-Scheduling capability helps address those challenges, and provides a status update on work accomplished to date and the path forward.

Shawn St. Germain; Kenneth Thomas; Ronald Farris; Jeffrey Joe

2014-09-01T23:59:59.000Z

87

Polarization independent microphotonic circuits  

E-Print Network [OSTI]

Microphotonic circuits have been proposed for applications ranging from optical switching and routing to optical logic circuits. However many applications require microphotonic circuits to be polarization independent, a ...

Watts, Michael Robert, 1974-

2005-01-01T23:59:59.000Z

88

Analysis of a transformer-less, multi-level DC-DC converter for HVDC operation  

SciTech Connect (OSTI)

HVDC systems require DC step up and DC step down units. The traditional approach is the application of twelve-pulse thyristor bridges with transformers. The developments of fast switching IGBT devices permit the development of transformer-less, multi-level converters. A multi-level circuit was suggested by Limpaecher. This paper presents a detailed simulation of the proposed circuit together with the analysis of its performance. The converter consists of a set of capacitors, air core inductors and solid state switches arranged in a ladder network. In the step-up mode, the closing of solid state switches resonantly charges the capacitors in parallel through an air-cored inductor. Then solid state switches resonantly charges the capacitors in parallel through an air-cored inductor. Then solid state switches connect the capacitors in series and discharge them through an air-core inductor to the load. In the step-down mode the capacitors are charged in series and discharged in parallel. The circuit has three modes of operation in each cycle: charge, inversion, and discharge. The circuit operation is analyzed in each mode using SPICE simulations. The selection of the components is discussed and output voltage regulation is analyzed. The results show that the proposed circuit promises significant reduction of losses, because of the zero current switching. The investment cost is reduced because of the elimination of transformers.

Karady, G.G.; Devarajan, S. [Arizona State Univ., Tempe, AZ (United States)

1998-12-31T23:59:59.000Z

89

Power Outages Update: Post-Tropical Cyclone Sandy | Department of Energy  

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

Outages Update: Post-Tropical Cyclone Sandy Outages Update: Post-Tropical Cyclone Sandy Power Outages Update: Post-Tropical Cyclone Sandy October 29, 2012 - 9:37pm Addthis Sandy made landfall as a post-tropical cyclone on the southern coast of New Jersey near Atlantic City at 8 p.m. with top sustained winds of 80 mph. | Photo courtesy of NOAA Sandy made landfall as a post-tropical cyclone on the southern coast of New Jersey near Atlantic City at 8 p.m. with top sustained winds of 80 mph. | Photo courtesy of NOAA Dan Leistikow Dan Leistikow Former Director, Office of Public Affairs As of 8:00 pm EDT on October 29, there were more than 3.6 million customers without power in the affected states. The Energy Department is continuing to monitor the progress of the storm throughout the night and will publish

90

Students' understanding of direct current resistive electrical circuits Paula Vetter Engelhardta)  

E-Print Network [OSTI]

Students' understanding of direct current resistive electrical circuits Paula Vetter Engelhardta regarding direct current resistive electric circuits often differ from the accepted explanations. At present of direct cur- rent DC resistive electric circuits concepts. DIRECT has been designed for use with high

Zollman, Dean

91

RES D.C.  

Broader source: Energy.gov [DOE]

RES DC, hosted by the National Center for American Indian Enterprise Development (The National Center), will feature access to respected tribal leaders, members of congress, federal agency...

92

622 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 49, NO. 3, MARCH 2014 Co-Design of a CMOS Rectifier and Small Loop  

E-Print Network [OSTI]

622 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 49, NO. 3, MARCH 2014 Co-Design of a CMOS Rectifier (EM) en- ergy into electrical DC power. This DC power is locally stored in a capacitor or battery

Serdijn, Wouter A.

93

High Voltage DC Transmission 2 1.0 Introduction  

E-Print Network [OSTI]

1 High Voltage DC Transmission 2 1.0 Introduction Interconnecting HVDC within an AC system requires on use of switching devices collectively referred to in the HVDC community as valves. Valves may be non. Fig. 1 There have been three types of devices for implementing HVDC converter circuits: mercury

McCalley, James D.

94

Draft!07"18"2011! 1 Turning the Tide on Outages1  

E-Print Network [OSTI]

! Draft!07"18"2011! 1 Turning the Tide on Outages1 What are the true costs of implementing!data!for!the!U.S.,!which!are!generally!available!from! several!sources,!including!from!the!U.S.!DOE's!Energy!University!of!Minnesota,!he!directed!all!Infrastructure!Security,!Grid! Operations/Planning,!and!Energy!Ma

Amin, S. Massoud

95

Steam turbine maintenance and repair technology: Reducing planned-outage costs  

SciTech Connect (OSTI)

The North American Electric Reliability Council (NAERC) reported that the average loss of equivalent availability per outage for a major fossil turbine overhaul is 323,000 MW-HR. The Electric Power Research Institute (EPRI) Generation and Storage Division, is in the first phase of a major research project to reduce the duration and/or frequency of steam turbine maintenance outages. This project consists of an assessment of the current state-of-the-art turbine maintenance and repair techniques and technologies. It is based on a review of current turbine maintenance practices of the US, European, Japanese, and Australian utility industries. Emphasized are maintenance and repair activities that have the most significant impact on outage duration or frequency. Twenty-six key turbine maintenance activities and the current best techniques were identified for use by utility maintenance personnel. Overall outage durations could be reduced if the duration of these activities were shortened or if they were performed more effectively. Recommended projects for development of advanced steam turbine maintenance technology were identified. 29 refs., 46 figs., 9 tabs.

Grace, H.P.; McClintock, M. (General Physics Corp., Columbia, MD (USA)); Lamping, G. (Southwest Research Inst., San Antonio, TX (USA))

1990-04-01T23:59:59.000Z

96

A Low-Cost Soft-Switched DC/DC Converter for Solid-Oxide Fuel Cells  

SciTech Connect (OSTI)

A highly efficient DC to DC converter has been developed for low-voltage high-current solid oxide fuel cells. The newly developed 'V6' converter resembles what has been done in internal combustion engine that split into multiple cylinders to increase the output capacity without having to increase individual cell size and to smooth out the torque with interleaving operation. The development was started with topology overview to ensure that all the DC to DC converter circuits were included in the study. Efficiency models for different circuit topologies were established, and computer simulations were performed to determine the best candidate converter circuit. Through design optimization including topology selection, device selection, magnetic component design, thermal design, and digital controller design, a bench prototype rated 5-kW, with 20 to 50V input and 200/400V output was fabricated and tested. Efficiency goal of 97% was proven achievable through hardware experiment. This DC to DC converter was then modified in the later stage to converter 35 to 63 V input and 13.8 V output for automotive charging applications. The complete prototype was tested at Delphi with their solid oxide fuel cell test stand to verify the performance of the modified DC to DC converter. The output was tested up to 3-kW level, and the efficiency exceeded 97.5%. Multiple-phase interleaving operation design was proved to be reliable and ripple free at the output, which is desirable for the battery charging. Overall this is a very successful collaboration project between the SECA Core Technology Team and Industrial Team.

Jason Lai

2009-03-03T23:59:59.000Z

97

Ionization tube simmer current circuit  

DOE Patents [OSTI]

A highly efficient flash lamp simmer current circuit utilizes a fifty percent duty cycle square wave pulse generator to pass a current over a current limiting inductor to a full wave rectifier. The DC output of the rectifier is then passed over a voltage smoothing capacitor through a reverse current blocking diode to a flash lamp tube to sustain ionization in the tube between discharges via a small simmer current. An alternate embodiment of the circuit combines the pulse generator and inductor in the form of an FET off line square wave generator with an impedance limited step up output transformer which is then applied to the full wave rectifier as before to yield a similar simmer current.

Steinkraus, Jr., Robert F. (Livermore, CA)

1994-01-01T23:59:59.000Z

98

Ionization tube simmer current circuit  

DOE Patents [OSTI]

A highly efficient flash lamp simmer current circuit utilizes a fifty percent duty cycle square wave pulse generator to pass a current over a current limiting inductor to a full wave rectifier. The DC output of the rectifier is then passed over a voltage smoothing capacitor through a reverse current blocking diode to a flash lamp tube to sustain ionization in the tube between discharges via a small simmer current. An alternate embodiment of the circuit combines the pulse generator and inductor in the form of an FET off line square wave generator with an impedance limited step up output transformer which is then applied to the full wave rectifier as before to yield a similar simmer current. 6 figures.

Steinkraus, R.F. Jr.

1994-12-13T23:59:59.000Z

99

Halbach array DC motor/generator  

DOE Patents [OSTI]

A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then "switched" or "commutated" to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives.

Merritt, Bernard T. (Livermore, CA); Dreifuerst, Gary R. (Livermore, CA); Post, Richard F. (Walnut Creek, CA)

1998-01-01T23:59:59.000Z

100

Design of a hysteretic SQUID as the readout for a dc SQUID  

SciTech Connect (OSTI)

This paper present a design for an optimal hysteretic SQUID readout circuit for a DC SQUID, thus eliminating the need for bulky output transformers or resonance matching circuits. The hysteretic readout system, which is based in part on standard sampling theory, is compared to another similar system and shown to be superior in terms of slew rate and immunity of electromagnetic interference. The circuit will be useful in optimizing the performance of biomagnetic systems.

Gershenson, M. (Naval Coastal Systems Center, Panama City, FL (United States))

1991-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

digital circuit patch bay  

Science Journals Connector (OSTI)

A patch bay in which low-level digital data circuits may be patched, monitored, and tested. Note: The digital circuit patch bay may be either (a) a...See also circuit ...

2001-01-01T23:59:59.000Z

102

Confidence intervals for state probabilities of system capacity outages and for LOLP  

E-Print Network [OSTI]

CONFID"NC. , INTERVALS FO- S'TATE PROBABILITIES OF SYSTEM CAPACITY OUTAGES AND FOR LOLP A Thcsi. , bv ATHANASIOS STASINOS Submi. tted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE December 1974 Major Subject: Electrical Engineering CONFIDENCE INTERVALS FOR STA1'E PROBABILITIES OF STSTEM CAPACITY OVTAGES AND FOR LOLP A Thesis by ATHANASIOS STASINOS Approved as to style and content by: (Chairman...

Stasinos, Athanasios

1974-01-01T23:59:59.000Z

103

A new true RMS-to-DC converter using up-down translinear loop in CMOS technology  

Science Journals Connector (OSTI)

In this paper a new true current-mode RMS-to-DC converter circuit based on a square-root-domain squarer/divider and simplified current-mode low pass filter is presented. The circuit is designed by employing up-down translinear loop and using of MOSFET ... Keywords: Converter, Current-mode, Low-pass filter, RMS-to-DC, Translinear loop

E. Farshidi; H. Asiaban

2012-03-01T23:59:59.000Z

104

Low Insertion HVDC Circuit Breaker: Magnetically Pulsed Hybrid Breaker for HVDC Power Distribution Protection  

SciTech Connect (OSTI)

GENI Project: General Atomics is developing a direct current (DC) circuit breaker that could protect the grid from faults 100 times faster than its alternating current (AC) counterparts. Circuit breakers are critical elements in any electrical system. At the grid level, their main function is to isolate parts of the grid where a fault has occurred—such as a downed power line or a transformer explosion—from the rest of the system. DC circuit breakers must interrupt the system during a fault much faster than AC circuit breakers to prevent possible damage to cables, converters and other grid-level components. General Atomics’ high-voltage DC circuit breaker would react in less than 1/1,000th of a second to interrupt current during a fault, preventing potential hazards to people and equipment.

None

2012-01-09T23:59:59.000Z

105

Multiplatform Dynamic System Simulation of a DC-DC Converter.  

E-Print Network [OSTI]

??The work presented in this paper focuses on the usability testing for the Open-Modelica. The modeling and simulation of the BMR450 DC-DC converter is also… (more)

Song, Wenpeng

2012-01-01T23:59:59.000Z

106

Universal Quantum Circuits  

E-Print Network [OSTI]

We define and construct efficient depth-universal and almost-size-universal quantum circuits. Such circuits can be viewed as general-purpose simulators for central classes of quantum circuits and can be used to capture the computational power of the circuit class being simulated. For depth we construct universal circuits whose depth is the same order as the circuits being simulated. For size, there is a log factor blow-up in the universal circuits constructed here. We prove that this construction is nearly optimal.

Debajyoti Bera; Stephen Fenner; Frederic Green; Steve Homer

2008-04-15T23:59:59.000Z

107

A dc superconducting fault current limiter using die-pressed  

Science Journals Connector (OSTI)

A model of a superconducting fault current limiter on a polycrystalline high-temperature superconductor basis is checked in the dc short circuit regime. Protection of load takes place under the conditions described in this paper. The use of ceramic materials with superconducting-normal metal-superconducting Josephson junction network having an S-type current-voltage characteristic (CVC) is shown to be effective for fault current limiter devices.

A G Mamalis; M I Petrov; D A Balaev; K A; D M Gohfeld; S V Militsyn; S G; V I Kirko; I N Vottea

2001-01-01T23:59:59.000Z

108

Snubber circuit designed for electric car drive system  

Science Journals Connector (OSTI)

This article presents a method to develop the speed-controller dc-motor chopper drive system by using mosfet as the switching drive for motor speed control. The switching current during ton state, and toff state of the mosfet can cause power ... Keywords: chopper, electric drive, mosfet, parallel connected, power dissipation, snubber circuit

Sakrawee Raweekul

2012-01-01T23:59:59.000Z

109

Washington. DC,20585  

Office of Legacy Management (LM)

Washington. DC,20585 Washington. DC,20585 MAY' i 1995 .- The Honorable Freeman R. Bosley, Jr. ' r City Hall 1200 Narket Street St. Louis, Missouri 63103 Dear Mayor Bosley: ,'~ ,. : !' Secretary of Energy Hazel O'Leary'has announced a new approach to'openness'in " the Department of,Energy"(DOE) and its communications with the pu~blic. In 'support of this initiative, we are pleased to forward the enclosed information rel,ated to the former Petrolite Corp. site in your jurisdiction that,performed, work for DDE or,i.ts predecessor agencies. your information, use, and retention. This information is provided for DDE's Formerly Utilized Sites Remedial Action Program is responsible for identification of sites used by DDE's predecessor agencies, determining their

110

I ' Washington, DC'  

Office of Legacy Management (LM)

' Washington, DC' ' Washington, DC' 20585 The.Honorable Don Trotter, 102' Public Square Clarksville, Tennessee '37040 '_ _' ' Dear Mayor Trotter: '. Secretary of Energy Hazel .O'Leary has announced a new the Department of Energy (DOE) and its communications support of this initiative, we are pleased to forward related to the Clarksville Foundry.& Machine Co. site approach to openness in with the publ,ic'. In " the~enclosed~information in your'jurisdiction that performed work for DOE or its predecessor'agencies. This information. is provided, for.your information, use, and retention. remedial action conservative' set of technical investigations to assure environment. If'you have any questions, please feel free~to call DrI W. Alexander Uilliams 301-427-1719 of my staff.

111

MATCASC: A tool to analyse cascading line outages in power grids  

E-Print Network [OSTI]

Blackouts in power grids typically result from cascading failures. The key importance of the electric power grid to society encourages further research into sustaining power system reliability and developing new methods to manage the risks of cascading blackouts. Adequate software tools are required to better analyze, understand, and assess the consequences of the cascading failures. This paper presents MATCASC, an open source MATLAB based tool to analyse cascading failures in power grids. Cascading effects due to line overload outages are considered. The applicability of the MATCASC tool is demonstrated by assessing the robustness of IEEE test systems and real-world power grids with respect to cascading failures.

Koç, Yakup; Araujo, Nuno A M; Warnier, Martijn

2013-01-01T23:59:59.000Z

112

Outage Log  

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

1814 4:45 PST 111814 10:18 PST Project Unavailable. 111214 0:22 PST - Hopper IDLMATLABMathematica unavailable on Hopper. 111214 0:22 PST - Edison IDLMATLABMathematica...

113

High voltage dc--dc converter with dynamic voltage regulation and decoupling during load-generated arcs  

DOE Patents [OSTI]

A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules. 5 Figs.

Shimer, D.W.; Lange, A.C.

1995-05-23T23:59:59.000Z

114

High voltage dc-dc converter with dynamic voltage regulation and decoupling during load-generated arcs  

DOE Patents [OSTI]

A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules.

Shimer, Daniel W. (Danville, CA); Lange, Arnold C. (Livermore, CA)

1995-01-01T23:59:59.000Z

115

Piezoelectric drive circuit  

DOE Patents [OSTI]

A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes. 7 figs.

Treu, C.A. Jr.

1999-08-31T23:59:59.000Z

116

Piezoelectric drive circuit  

DOE Patents [OSTI]

A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes.

Treu, Jr., Charles A. (Raymore, MO)

1999-08-31T23:59:59.000Z

117

Resolving piping analysis issues to minimize impact on installation activities during refueling outage at nuclear power plants  

SciTech Connect (OSTI)

While it is required to maintain piping code compliance for all phases of installation activities during outages at a nuclear plant, it is equally essential to reduce challenges to the installation personnel on how plant modification work should be performed. Plant betterment activities that incorporate proposed design changes are continually implemented during the outages. Supporting analysis are performed to back these activities for operable systems. The goal is to reduce engineering and craft man-hours and minimize outage time. This paper outlines how plant modification process can be streamlined to facilitate construction teams to do their tasks that involve safety related piping. In this manner, installation can proceed by minimizing on the spot analytical effort and reduce downtime to support the proposed modifications. Examples are provided that permit performance of installation work in any sequence. Piping and hangers including the branch lines are prequalified and determined operable. The system is up front analyzed for all possible scenarios. The modification instructions in the work packages is flexible enough to permit any possible installation sequence. The benefit to this approach is large enough in the sense that valuable outage time is not extended and on site analytical work is not required.

Bhavnani, D. [Public Service Electric and Gas Co., Hancocks Bridge, NJ (United States)

1996-12-01T23:59:59.000Z

118

A Review of Power Outages and Restoration Following the June 2012 Derecho  

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

August 2012 August 2012 A Review of Power Outages and Restoration Following the June 2012 Derecho Infrastructure Security and Energy Restoration Office of Electricity Delivery and Energy Reliability U.S. Department of Energy For Further Information This report was prepared by the Office of Electricity Delivery and Energy Reliability under the direction of Patricia Hoffman, Assistant Secretary, and William Bryan, Deputy Assistant Secretary. Specific questions about this report may be directed to Alice Lippert, Senior Technical Advisor (alice.lippert@hq.doe.gov). (Cover image from the National Weather Service) OE/ISER 8/6/2012 1 Background On June 29, 2012, a major storm system known as a derecho ("deh-REY-cho") formed and

119

Departmentaf Energy Washington, DC  

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

Departmentaf Departmentaf Energy Washington, DC 20585 MAR 4 1998 MEMORANDUM FOR: James H. Chafin, AL Robert Fisher, CH Steven Hamel, OR William Daubenspeck, LL James Hanley, SAN Robert Southworth, RL Harold Dixon, SR \ Lisa Jarr, FETC"/"',,,-' ( ~ ( ) ( I C{ \'"~V FROM: Paul A. Gottlieb'<,. ~ ' \ Assistant General Counsel . for Technology Transfer / and Intellectual Property SUBJECT: U.S. Competitiveness Provision. Except for the cases discussed further below, attached is the U.S. Competitiveness provision which you should begin providing as our initial negotiating position to inventors/contractors requesting identified and, advance patent waivers. Of course, it is not· expected that every inventor/contractor will agree to the exact language in the provision, in which case modifications to the provision can be made. In those cases where substantial changes are contemplated,

120

Washington, DC,20585  

Office of Legacy Management (LM)

>/gGq ' >/gGq ' ,, ' .. Department of Edgy Washington, DC,20585 ,I ' , APR 0 4 1995 The Honorable Patrick Ungaro 26 S. Phelps Street Youngstown, Ohio 44503 .' Dear );layor.Ungaro: Secretary of'Energy Hazel O'Leary has announced a new approach to openness in the Oepartment of Energy (DOE) and its coannunications with the public. In support of this initiative, we are pleased to forward the,enclosed information related to the former Ajax-Hagnethermic C,orp. site in your jurisdiction that performed work for DOE's predecessoragencies. This information is~provided for your information, use, and retention. DOE's Formerly Utilized Sites Remedial Action Program is responsible for identificationof sites used by DOE's predecessor agencies, determining their current radiological condition and, where it has authority, performing-

Note: This page contains sample records for the topic "dc circuit outage" 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

D.C.  

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

Future scientists advance to national Future scientists advance to national level April 3, 2012 Science Bowl winners represent NM in Washington, D.C. A team from Los Alamos bested 39 other teams from around New Mexico in the 10- hour New Mexico Regional Science Bowl, held recently at Albuquerque Academy. The team went on to represent New Mexico in the 22nd Annual Department of Energy (DOE) National Science Bowl. In addition to their travel expenses, the team also won $5,000 for their school. The team consists of students, Alexander Wang, Micha Ben-Naim, Scott Carlsten, Lorenzo Venneri and Kevin Gao, and Coach, Paolo Venneri. - 2 - Albuquerque Academy took second place and La Cueva High School in Albuquerque placed third in the "Jeopardy!"-style event. During the competition, students are asked

122

Abstract--In this paper, the authors present the modelling of the impedance variation of an inverter DC bus. Modelling is  

E-Print Network [OSTI]

an analysis of the inverter DC bus in order to develop a new diagnostic method by the elec- tromagnetic field of an inverter DC bus. Modelling is done by application of the PEEC method (Partial Element Equivalent Circuit measurement [1]. Actually, the power of the electrical drives flows through the bus-bar, for this rea- son

Boyer, Edmond

123

Development and interrupting tests on 250KV 8KA HVDC circuit breaker  

SciTech Connect (OSTI)

This paper describes the circuit and component selections, development and equivalent circuit test results on an HVDC circuit breaker for an HVDC transmission line. A puffer type SF/sub 6/ gas interrupter for AC circuit breakers is utilized for interrupting DC current with injection of high-frequency inverse current from a commutating capacitor precharged to HVDC line voltage. Also, the effectiveness of application of the HVDC breaker to an HVDC system with two parallel transmission lines is demonstrated through the EMTP simulation.

Tokuyama, S.; Arimatsu, K.; Hirata, K.; Kato, Y.; Yoshioka, Y.

1985-09-01T23:59:59.000Z

124

Virtual Circuits (OSCARS)  

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

Virtual Circuits (OSCARS) Virtual Circuits (OSCARS) Services Overview ECS Audio/Video Conferencing Fasterdata IPv6 Network Network Performance Tools (perfSONAR) ESnet OID Registry PGP Key Service Virtual Circuits (OSCARS) OSCARS Case Study Documentation Links Hardware Requirements DOE Grids Service Transition Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Virtual Circuits (OSCARS) ESnet's On-Demand Secure Circuits and Advance Reservation System (OSCARS) provides multi-domain, high-bandwidth virtual circuits that guarantee end-to-end network data transfer performance. Originally a research concept, OSCARS has grown into a robust production service. Currently

125

Comparison of Two Autonomous AC-DC Converters for Piezoelectric Energy Scavenging Systems  

E-Print Network [OSTI]

, on the other, given the very low energetic content associated to environmental energy, the interface circuit- 1 - Comparison of Two Autonomous AC-DC Converters for Piezoelectric Energy Scavenging Systems E Cornaredo, Milan, Italy Abstract - Piezoelectric Energy Scavenging Systems (PESS) are used to convert

Boyer, Edmond

126

Regenerative feedback resonant circuit  

DOE Patents [OSTI]

A regenerative feedback resonant circuit for measuring a transient response in a loop is disclosed. The circuit includes an amplifier for generating a signal in the loop. The circuit further includes a resonator having a resonant cavity and a material located within the cavity. The signal sent into the resonator produces a resonant frequency. A variation of the resonant frequency due to perturbations in electromagnetic properties of the material is measured.

Jones, A. Mark; Kelly, James F.; McCloy, John S.; McMakin, Douglas L.

2014-09-02T23:59:59.000Z

127

Compensated gain control circuit for buck regulator command charge circuit  

DOE Patents [OSTI]

A buck regulator command charge circuit includes a compensated-gain control signal for compensating for changes in the component values in order to achieve optimal voltage regulation. The compensated-gain control circuit includes an automatic-gain control circuit for generating a variable-gain control signal. The automatic-gain control circuit is formed of a precision rectifier circuit, a filter network, an error amplifier, and an integrator circuit.

Barrett, David M. (Albuquerque, NM)

1996-01-01T23:59:59.000Z

128

Compensated gain control circuit for buck regulator command charge circuit  

DOE Patents [OSTI]

A buck regulator command charge circuit includes a compensated-gain control signal for compensating for changes in the component values in order to achieve optimal voltage regulation. The compensated-gain control circuit includes an automatic-gain control circuit for generating a variable-gain control signal. The automatic-gain control circuit is formed of a precision rectifier circuit, a filter network, an error amplifier, and an integrator circuit. 5 figs.

Barrett, D.M.

1996-11-05T23:59:59.000Z

129

Catalog of DC Appliances and Power Systems  

E-Print Network [OSTI]

Appliance Efficient DC compatible replacement technology variable-speed compressor and fans run by brushless DC motor in place of single-speed compressors

Garbesi, Karina

2012-01-01T23:59:59.000Z

130

Dc's blog | OpenEI Community  

Open Energy Info (EERE)

The U.S. Department of Energy put out this short inspirational video about Women in Science, Technology, Engineering, and Mathematics (STEM). Dc's picture Submitted by Dc(55)...

131

Catalog of DC Appliances and Power Systems  

E-Print Network [OSTI]

by DC-indifferent electric resistance heating or by DC-and LED lamps Electric resistance heater Incandescentfluorescent or LED) Electric resistance Cooling Motors

Garbesi, Karina

2012-01-01T23:59:59.000Z

132

Quantum Circuits Architecture  

E-Print Network [OSTI]

We present a method for optimizing quantum circuits architecture. The method is based on the notion of "quantum comb", which describes a circuit board in which one can insert variable subcircuits. The method allows one to efficiently address novel kinds of quantum information processing tasks, such as storing-retrieving, and cloning of channels.

Giulio Chiribella; Giacomo Mauro D'Ariano; Paolo Perinotti

2007-12-09T23:59:59.000Z

133

Online circuit breaker monitoring system  

E-Print Network [OSTI]

inspection and maintenance of the circuit breakers. An automated online circuit breaker monitoring system is proposed to monitor condition, operation and status of high and medium voltage circuit breakers. By tracking equipment condition, this system could...

Djekic, Zarko

2008-10-10T23:59:59.000Z

134

Online circuit breaker monitoring system  

E-Print Network [OSTI]

inspection and maintenance of the circuit breakers. An automated online circuit breaker monitoring system is proposed to monitor condition, operation and status of high and medium voltage circuit breakers. By tracking equipment condition, this system could...

Djekic, Zarko

2009-05-15T23:59:59.000Z

135

Sensor readout detector circuit  

DOE Patents [OSTI]

A sensor readout detector circuit is disclosed that is capable of detecting sensor signals down to a few nanoamperes or less in a high (microampere) background noise level. The circuit operates at a very low standby power level and is triggerable by a sensor event signal that is above a predetermined threshold level. A plurality of sensor readout detector circuits can be formed on a substrate as an integrated circuit (IC). These circuits can operate to process data from an array of sensors in parallel, with only data from active sensors being processed for digitization and analysis. This allows the IC to operate at a low power level with a high data throughput for the active sensors. The circuit may be used with many different types of sensors, including photodetectors, capacitance sensors, chemically-sensitive sensors or combinations thereof to provide a capability for recording transient events or for recording data for a predetermined period of time following an event trigger. The sensor readout detector circuit has applications for portable or satellite-based sensor systems. 6 figs.

Chu, D.D.; Thelen, D.C. Jr.

1998-08-11T23:59:59.000Z

136

Sensor readout detector circuit  

DOE Patents [OSTI]

A sensor readout detector circuit is disclosed that is capable of detecting sensor signals down to a few nanoamperes or less in a high (microampere) background noise level. The circuit operates at a very low standby power level and is triggerable by a sensor event signal that is above a predetermined threshold level. A plurality of sensor readout detector circuits can be formed on a substrate as an integrated circuit (IC). These circuits can operate to process data from an array of sensors in parallel, with only data from active sensors being processed for digitization and analysis. This allows the IC to operate at a low power level with a high data throughput for the active sensors. The circuit may be used with many different types of sensors, including photodetectors, capacitance sensors, chemically-sensitive sensors or combinations thereof to provide a capability for recording transient events or for recording data for a predetermined period of time following an event trigger. The sensor readout detector circuit has applications for portable or satellite-based sensor systems.

Chu, Dahlon D. (Albuquerque, NM); Thelen, Jr., Donald C. (Bozeman, MT)

1998-01-01T23:59:59.000Z

137

Multilevel-Dc-Bus Inverter For Providing Sinusoidal And Pwm Electrical Machine Voltages  

DOE Patents [OSTI]

A circuit for controlling an ac machine comprises a full bridge network of commutation switches which are connected to supply current for a corresponding voltage phase to the stator windings, a plurality of diodes, each in parallel connection to a respective one of the commutation switches, a plurality of dc source connections providing a multi-level dc bus for the full bridge network of commutation switches to produce sinusoidal voltages or PWM signals, and a controller connected for control of said dc source connections and said full bridge network of commutation switches to output substantially sinusoidal voltages to the stator windings. With the invention, the number of semiconductor switches is reduced to m+3 for a multi-level dc bus having m levels. A method of machine control is also disclosed.

Su, Gui-Jia [Knoxville, TN

2005-11-29T23:59:59.000Z

138

Plant Outage Time Savings Provided by Subcritical Physics Testing at Vogtle Unit 2  

SciTech Connect (OSTI)

The most recent core reload design verification physics testing done at Southern Nuclear Company's (SNC) Vogtle Unit 2, performed prior to initial power operations in operating cycle 12, was successfully completed while the reactor was at least 1% {delta}K/K subcritical. The testing program used was the first application of the Subcritical Physics Testing (SPT) program developed by the Westinghouse Electric Company LLC. The SPT program centers on the application of the Westinghouse Subcritical Rod Worth Measurement (SRWM) methodology that was developed in cooperation with the Vogtle Reactor Engineering staff. The SRWM methodology received U. S. Nuclear Regulatory Commission (NRC) approval in August of 2005. The first application of the SPT program occurred at Vogtle Unit 2 in October of 2005. The results of the core design verification measurements obtained during the SPT program demonstrated excellent agreement with prediction, demonstrating that the predicted core characteristics were in excellent agreement with the actual operating characteristics of the core. This paper presents an overview of the SPT Program used at Vogtle Unit 2 during operating cycle 12, and a discussion of the critical path outage time savings the SPT program is capable of providing. (authors)

Cupp, Philip [Southern Nuclear Company (United States); Heibel, M.D. [Westinghouse Electric Company, LLC (United States)

2006-07-01T23:59:59.000Z

139

The Design of a RapidDischarge Varistor System for the MICE Magnet Circuits  

SciTech Connect (OSTI)

The need for a magnet circuit discharge system, in order to protect the magnet HTS leads during a power failure, has been discussed in recent MICE reports [1], [2]. In order to rapidly discharge a magnet, one has to put enough resistance across the lead. The resistance in this case is varistor that is put across the magnet in the event of a power outage. The resistance consists of several diodes, which act as constant voltage resistors and the resistance of the cables connecting the magnets in the circuit to each other and to the power supply. In order for the rapid discharge system to work without quenching the magnets, the voltage across the magnets must be low enough so that the diodes in the quench protection circuit don't fire and cause the magnet current to bypass the superconducting coils. It is proposed that six rapid discharge varistors be installed across the three magnet circuits the power the tracker solenoids, which are connected in series. The focusing magnets, which are also connected in series would have three varistors (one for each magnet). The coupling magnets would have a varistor for each magnet. The peak voltage that is allowed per varistor depends on the number of quench protection diodes that make up the quench protection circuit for each magnet coil circuit. It is proposed that the varistors be water cooled as the magnet circuits are being discharged through them. The water cooling circuit can be supplied with tap water. The tap water flows only when the varistor temperature reaches a temperature of 45 C.

Green, Michael A.

2008-07-23T23:59:59.000Z

140

Superconducting flux flow digital circuits  

DOE Patents [OSTI]

A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs) are disclosed. Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics. 8 figs.

Hietala, V.M.; Martens, J.S.; Zipperian, T.E.

1995-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

Superconducting flux flow digital circuits  

DOE Patents [OSTI]

A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs). Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics.

Hietala, Vincent M. (Placitas, NM); Martens, Jon S. (Sunnyvale, CA); Zipperian, Thomas E. (Albuquerque, NM)

1995-01-01T23:59:59.000Z

142

Composite resonance: A circuit approach to the waveform distortion dynamics of an HVdc converter  

SciTech Connect (OSTI)

A frequency domain analysis is applied to a controlled HVdc converter interconnecting ac and dc networks. The converter is considered as a three port network, and described using transfer functions. Using ac and dc system frequency dependent impedances an equivalent electrical circuit is constructed. The concept of composite resonance is introduced to emphasize the interaction between the ac and dc systems, and a simplified damping factor derived to predict the dynamics of waveform distortion during transient recovery. The frequency domain analysis is verified by dynamic simulation.

Wood, A.R.; Arrillaga, J. [Univ. of Canterbury, Christchurch (New Zealand)] [Univ. of Canterbury, Christchurch (New Zealand)

1995-10-01T23:59:59.000Z

143

Light-weight DC to very high voltage DC converter  

DOE Patents [OSTI]

A DC-DC converter capable of generating outputs of 100 KV without a transformer comprises a silicon opening switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly; and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current.

Druce, Robert L. (Union City, CA); Kirbie, Hugh C. (Dublin, CA); Newton, Mark A. (Livermore, CA)

1998-01-01T23:59:59.000Z

144

Light-weight DC to very high voltage DC converter  

DOE Patents [OSTI]

A DC-DC converter capable of generating outputs of 100 KV without a transformer comprises a silicon opening switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly; and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current. 1 fig.

Druce, R.L.; Kirbie, H.C.; Newton, M.A.

1998-06-30T23:59:59.000Z

145

SAS Output  

U.S. Energy Information Administration (EIA) Indexed Site

A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours by High-Voltage Size and NERC Region, 2012 Sustained Automatic Outage Counts Voltage Region Type Operating (kV) FRCC MRO NPCC RFC SERC SPP TRE WECC Contiguous U.S. AC 200-299 142 49 14 141 242 49 -- 484 1,121 AC 300-399 -- 88 107 95 46 56 80 165 637 AC 400-599 9 3 -- 22 86 -- -- 125 245 AC 600+ -- -- 6 9 -- -- -- -- 15 AC Total 151 140 127 267 374 105 80 774 2,018 DC 100-199 -- -- -- -- -- -- -- -- -- DC 200-299 -- 18 -- -- -- -- -- 5 23 DC 300-399 -- -- -- -- -- -- -- -- -- DC 400-499 -- 5 -- -- -- -- -- -- 5 DC 500-599 -- -- -- 5 -- -- -- 17 22 DC 600+ -- -- -- -- -- -- -- -- --

146

Switching coordination of distributed dc-dc converters for highly efficient photovoltaic power plants  

DOE Patents [OSTI]

A distributed photovoltaic (PV) power plant includes a plurality of distributed dc-dc converters. The dc-dc converters are configured to switch in coordination with one another such that at least one dc-dc converter transfers power to a common dc-bus based upon the total system power available from one or more corresponding strings of PV modules. Due to the coordinated switching of the dc-dc converters, each dc-dc converter transferring power to the common dc-bus continues to operate within its optimal efficiency range as well as to optimize the maximum power point tracking in order to increase the energy yield of the PV power plant.

Agamy, Mohammed; Elasser, Ahmed; Sabate, Juan Antonio; Galbraith, Anthony William; Harfman Todorovic, Maja

2014-09-09T23:59:59.000Z

147

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--I: REGULAR PAPERS, VOL. 57, NO. 1, JANUARY 2010 249 Hybrid Formulation of the Equation Systems of the  

E-Print Network [OSTI]

(PEEC) method for the solution of combined elec- tromagnetic and circuit (EM-CKT) problems. Traditional electro- magnetic solution methods suffer from singularity of the system matrix due to the decoupling DC-to-daylight and its capability to provide memory saving. Index Terms--Circuit electromagnetic, low

Frigioni, Daniele

148

Data:C2919ee4-d580-4dc4-959e-3fa28b71dd35 | Open Energy Information  

Open Energy Info (EERE)

19ee4-d580-4dc4-959e-3fa28b71dd35 19ee4-d580-4dc4-959e-3fa28b71dd35 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Harmon Electric Assn Inc Effective date: 2008/10/01 End date if known: Rate name: Schedule DR-02 -02 Dairy Sector: Commercial Description: * Available to dairy loads within our service territory that have backup generation capable of meeting the capacity needs of the dairy operation during peak periods and at other times that an outage interrupts service. Subject to Power Factor Adjustment, Power Cost Adjustment and Gross Receipts Tax Adjustment. Source or reference: Rate binder # 4

149

High efficiency resonant dc/dc converter for solar power applications .  

E-Print Network [OSTI]

??This thesis presents a new topology for a high efficiency dc/dc resonant power converter that utilizes a resistance compression network to provide simultaneous zero voltage… (more)

Inam, Wardah

2013-01-01T23:59:59.000Z

150

DC systems with transformerless converters  

SciTech Connect (OSTI)

A technical and economic feasibility study of HVDC systems without converter transformers is presented. The presentation includes proposed solutions to the drawback related to the absence of galvanic separation between the ac and dc systems, if the converter transformers are eliminated. The results show that HVDC systems without converter transformers are both technically and economically feasible. The cost savings can be substantial.

Vithayathil, J.J.; Mittlestadt, W. [Bonneville Power Administration, Portland, OR (United States)] [Bonneville Power Administration, Portland, OR (United States); Bjoerklund, P.E. [ABB Power Systems AB, Ludvika (Sweden)] [ABB Power Systems AB, Ludvika (Sweden)

1995-07-01T23:59:59.000Z

151

Electrical Circuit Tester  

DOE Patents [OSTI]

An electrical circuit testing device is provided, comprising a case, a digital voltage level testing circuit with a display means, a switch to initiate measurement using the device, a non-shorting switching means for selecting pre-determined electrical wiring configurations to be tested in an outlet, a terminal block, a five-pole electrical plug mounted on the case surface and a set of adapters that can be used for various multiple-pronged electrical outlet configurations for voltages from 100 600 VAC from 50 100 Hz.

Love, Frank (Amarillo, TX)

2006-04-18T23:59:59.000Z

152

NASA DC-8 Airborne Scanning Lidar System  

Science Journals Connector (OSTI)

A scanning lidar system is being developed for installation on the NASA DC-8 atmospheric research aircraft to support...in-situ aerosol and gas measurements. Design and objectives of the DC-8 scanning lidar are p...

Norman B. Nielsen; Edward E. Uthe…

1997-01-01T23:59:59.000Z

153

ARM - Campaign Instrument - dc8-nasa  

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

govInstrumentsdc8-nasa Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NASA DC-8 (DC8-NASA) Instrument...

154

DC-DC converter current source fed naturally commutated brushless DC motor drive  

E-Print Network [OSTI]

, thereby generating switching losses and entail the use of large heatsinks. VSI needs a huge dc link capacitor that is inherently unreliable and is one of the most expensive components of a drive. Hence, a Current Source Inverter (CSI) is used to replace...

Khopkar, Rahul Vijaykumar

2004-11-15T23:59:59.000Z

155

Catalog of DC Appliances and Power Systems  

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

Catalog of DC Appliances and Power Systems Catalog of DC Appliances and Power Systems Title Catalog of DC Appliances and Power Systems Publication Type Report LBNL Report Number LBNL-5364E Year of Publication 2011 Authors Garbesi, Karina, Vagelis Vossos, and Hongxia Shen Document Number LBNL-5364E Date Published October Publisher Lawrence Berkeley National Laboratory Abstract This document catalogs the characteristics of current and potential future direct current (DC) products and power systems. It is part of a larger U.S. Department of Energy-funded project, "Direct-DC Power Systems for Energy Efficiency and Renewable Energy Integration with a Residential and Small Commercial Focus". That project is investigating the energy-savings potential, benefits, and barriers of using DC generated by on-site renewable energy systems directly in its DC form, rather than converting it first to alternating current (AC) for distribution to loads. Two related reports resulted from this work: this Catalog and a companion report that addresses direct-DC energy savings in U.S. residential buildings.Interest in 'direct-DC' is motivated by a combination of factors: the very rapid increase in residential and commercial photovoltaic (PV) power systems in the United States; the rapid expansion in the current and expected future use of energy efficient products that utilize DC power internally; the demonstrated energy savings of direct-DC in commercial data centers; and the current emergence of direct-DC power standards and products designed for grid-connected residential and commercial products. Based on an in-depth study of DC appliances and power systems, we assessed off-grid markets for DC appliances, the DC compatibility of mainstream electricity end-uses, and the emerging mainstream market for direct-DC appliances and power systems.

156

Bioluminescent bioreporter integrated circuit  

DOE Patents [OSTI]

Disclosed are monolithic bioelectronic devices comprising a bioreporter and an OASIC. These bioluminescent bioreporter integrated circuit are useful in detecting substances such as pollutants, explosives, and heavy-metals residing in inhospitable areas such as groundwater, industrial process vessels, and battlefields. Also disclosed are methods and apparatus for environmental pollutant detection, oil exploration, drug discovery, industrial process control, and hazardous chemical monitoring.

Simpson, Michael L. (Knoxville, TN); Sayler, Gary S. (Blaine, TN); Paulus, Michael J. (Knoxville, TN)

2000-01-01T23:59:59.000Z

157

LABORATORY V ELECTRIC CIRCUITS  

E-Print Network [OSTI]

Lab V -1 LABORATORY V ELECTRIC CIRCUITS Electrical devices are the cornerstones of our modern world understanding of them. In the previous laboratory, you studied the behavior of electric fields and their effect on the motion of electrons using a cathode ray tube (CRT). This beam of electrons is one example of an electric

Minnesota, University of

158

Circuit breaker lockout device  

SciTech Connect (OSTI)

An improved lockout assembly for locking a circuit breaker in a selected off or on position is provided. The lockout assembly includes a lock block and a lock pin. The lock block has a hollow interior which fits over the free end of a switch handle of the circuit breaker. The lock block includes at least one hole that is placed in registration with a hole in the free end of the switch handle. A lock tab on the lock block serves to align and register the respective holes on the lock block and switch handle. A lock pin is inserted through the registered holes and serves to connect the lock block to the switch handle. Once the lock block and the switch handle are connected, the position of the switch handle is prevented from being changed by the lock tab bumping up against a stationary housing portion of the circuit breaker. When the lock pin installed, an apertured-end portion of the lock pin is in registration with another hole on the lock block. Then a special scissors conforming to O.S.H.A. regulations can be installed, with one or more padlocks, on the lockout assembly to prevent removal of the lock pin from the lockout assembly, thereby preventing removal of the lockout assembly from the circuit breaker.

Kozlowski, Lawrence J. (New Kensington, PA); Shirey, Lawrence A. (North Huntingdon, PA)

1992-01-01T23:59:59.000Z

159

Circuit breaker lockout device  

DOE Patents [OSTI]

An improved lockout assembly for locking a circuit breaker in a selected off or on position is provided. The lockout assembly includes a lock block and a lock pin. The lock block has a hollow interior which fits over the free end of a switch handle of the circuit breaker. The lock block includes at least one hole that is placed in registration with a hole in the free end of the switch handle. A lock tab on the lock block serves to align and register the respective holes on the lock block and switch handle. A lock pin is inserted through the registered holes and serves to connect the lock block to the switch handle. Once the lock block and the switch handle are connected, the position of the switch handle is prevented from being changed by the lock tab bumping up against a stationary housing portion of the circuit breaker. When the lock pin installed, an apertured-end portion of the lock pin is in registration with another hole on the lock block. Then a special scissors conforming to O.S.H.A. regulations can be installed, with one or more padlocks, on the lockout assembly to prevent removal of the lock pin from the lockout assembly, thereby preventing removal of the lockout assembly from the circuit breaker. 2 figs.

Kozlowski, L.J.; Shirey, L.A.

1992-11-24T23:59:59.000Z

160

Circuit breaker lockout device  

SciTech Connect (OSTI)

An improved lockout assembly for locking a circuit breaker in a selected off or on position is provided. The lockout assembly includes a lock block and a lock pin. The lock block has a hollow interior which fits over the free end of a switch handle of the circuit breaker. The lock block includes at least one hole that is placed in registration with a hole in the free end of the switch handle. A lock tab on the lock block serves to align and register the respective holes on the lock block and switch handle. A lock pin is inserted through the registered holes and serves to connect the lock block to the switch handle. Once the lock block and the switch handle are connected, the position of the switch handle is prevented from being changed by the lock tab bumping up against a stationary housing portion of the circuit breaker. When the lock pin is installed, an apertured-end portion of the lock pin is in registration with another hole on the lock block. Then a special scissors conforming to O.S.H.A. regulations can be installed, with one or more padlocks, on the lockout assembly to prevent removal of the lock pin from the lockout assembly, thereby preventing removal of the lockout assembly from the circuit breaker.

Kozlowski, L.J.; Shirey, L.A.

1991-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

Ecological benefits of dc power transmission  

SciTech Connect (OSTI)

The environmental effects of dc overhead transmission lines are examined. The major effects of ac and dc transmission lines are compared. Dc lines have advantages compared to ac lines in terms of electrical safety for people under the lines, biological effects, corona losses, and clearance width.

Kutuzova, N. B. [JSC 'NIIPT' (Russian Federation)

2011-05-15T23:59:59.000Z

162

United States Court of Appeals FOR THE DISTRICT OF COLUMBIA CIRCUIT  

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

Court of Appeals Court of Appeals FOR THE DISTRICT OF COLUMBIA CIRCUIT No. 10-1074 September Term, 2010 FILED ON: DECEMBER 13, 2010 NATIONAL ASSOCIATION OF REGULATORY UTILITY COMMISSIONERS, PETITIONER v. UNITED STATES DEPARTMENT OF ENERGY AND UNITED STATES OF AMERICA, RESPONDENTS Consolidated with 10-1076 Petition for Review of a Decision of the United States Department of Energy Before: SENTELLE, Chief Judge; BROWN, Circuit Judge; and WILLIAMS, Senior Circuit Judge. J U D G M E N T This appeal was considered on the record and the briefs submitted by the parties. See FED. R. APP. P. 34(a)(2); D.C. CIR. R. 34(j). The court has accorded the issues full consideration and has determined they do not warrant a published opinion. See D.C. CIR. R.36(d). It is ORDERED AND ADJUDGED that the petition for review is dismissed.

163

Design and development of a DC-DC converter for a fuel cell inverter system  

E-Print Network [OSTI]

This thesis outlines the design and development of a DC-DC converter for a fuel cell inverter application. The proposed DC-DC converter was designed and tested at Texas A&M to meet the specifications laid down for the '2001 Future Energy Challenge...

Gopinath, Rajesh

2001-01-01T23:59:59.000Z

164

Power system with an integrated lubrication circuit  

DOE Patents [OSTI]

A power system includes an engine having a first lubrication circuit and at least one auxiliary power unit having a second lubrication circuit. The first lubrication circuit is in fluid communication with the second lubrication circuit.

Hoff, Brian D. (East Peoria, IL); Akasam, Sivaprasad (Peoria, IL); Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Lane, William H. (Chillicothe, IL)

2009-11-10T23:59:59.000Z

165

LC-circuit calorimetry  

SciTech Connect (OSTI)

We present a new type of calorimeter in which we couple an unknown heat capacity with the aid of Peltier elements to an electrical circuit. The use of an electrical inductance and an amplifier in the circuit allows us to achieve autonomous oscillations, and the measurement of the corresponding resonance frequency makes it possible to accurately measure the heat capacity with an intrinsic statistical uncertainty that decreases as {approx}t{sub m}{sup -3/2} with measuring time t{sub m}, as opposed to a corresponding uncertainty {approx}t{sub m}{sup -1/2} in the conventional alternating current method to measure heat capacities. We have built a demonstration experiment to show the feasibility of the new technique, and we have tested it on a gadolinium sample at its transition to the ferromagnetic state.

Bossen, O.; Schilling, A. [Physik-Institut der Universitaet Zuerich, Winterthurerstrasse 190, 8057 Zuerich (Switzerland)

2011-09-15T23:59:59.000Z

166

DESIGN AND PERFORMANCE OF PEP DC POWER SYSTEMS  

E-Print Network [OSTI]

a chopper there is no firing circuit unbalance to introducemulti-phase firing- circuits because oscillations develop atbut it seems clear that the firing circuit is unreasonably

Jackson, T.

2010-01-01T23:59:59.000Z

167

Microsoft Word - PoRiver Project Schedule - Letter to DOE_042807.doc  

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

30, 2007 30, 2007 Lawrence Mansueti Office of Electricity Delivery and Energy Reliability U.S. Department of Energy Rm. 8H-033 1000 Independence Avenue Washington, D.C. 20585 Re: Potomac River Project Outage Schedule Clarification Dear Mr. Mansueti: I am writing to clarify the upcoming outage schedule for the Potomac River project and to explain certain discrepancies that are present in Pepco's most recent communications. 1 The monthly status report submitted to the Federal Energy Regulatory Commission ("FERC") on April 16, 2007 shows the upcoming outages for the two additional transmission circuits as May 1, 2007 through May 21, 2007 (Circuit 1) and as May 24, 2007 through June 21, 2007 (Circuit 2). In an e-mail sent by Steve Alexander on April 27, 2007, Pepco reflected the current outage schedule for Circuit 1.

168

DC Distribution: The Power To Change Buildings  

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

DC Distribution: The Power To Change Buildings DC Distribution: The Power To Change Buildings Speaker(s): Brian Patterson Dennis Symanski Liang Downey Date: July 14, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Chris Marnay This seminar presents an overview of the effort to create new applications standards to drive the distribution and use of native direct current (dc) in net zero energy commercial and residential buildings. From the early days of electric power generation, distribution and use there's been a debate over which form of power, AC or DC, is best. Edison set the stage for this argument in the late 1800's with his invention of DC powered lighting systems. Tesla's system of AC dynamos, transformers and motors all but stopped the growing use of DC by the turn of the century. With the

169

Map Locating Berkeley Lab Washington, DC Office  

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

WASHINGTON, DC PROJECTS OFFICE WASHINGTON, DC PROJECTS OFFICE Map LEGEND: A:Berkeley Lab DC Office; PNNL; NREL; ORNL | B: EPA Waterside Mall C: Metrorail Station: Smithsonian | D: Metrorail Station: L'Enfant Plaza Notice: Due to security requirements in the building, all visitors to the Berkeley Lab DC Projects Office must check in at the ground floor entrance. If you do not have a DOE access badge, you will need to obtain a building visitor badge. To expedite this process, visitors are encouraged to RSVP to their meeting host or call (202) 488-2250 ahead of time. Metal detectors and x-ray screening of personal items are required for all visitors and staff entering the building. Directions to the Lab's Washington, DC Projects Office 901 D Street, SW Suite 950 Washington, DC 20024 Phone/Fax: (202) 488-2250

170

Pepco Update on Current Construction Work and Mirant Generation Needs for  

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

Update on Current Construction Work and Mirant Generation Update on Current Construction Work and Mirant Generation Needs for Pepco's Planned June Line Outage Pepco Update on Current Construction Work and Mirant Generation Needs for Pepco's Planned June Line Outage Docket No. EO-05-01. Pepco needs the following to occur to provide necessary reliability to the central D.C. area during this scheduled June outage in order to complete installation of new transmission circuits to serve the central D.C. area. The situations that we would expect generation support for this outage are as follows: Two 230 KV lines in service: 264 MW generation to protect against the loss of one 230KV line. One 230KV line in service (i.e., one of the two lines has experienced an outage): 264 MW generation is required, with an additional

171

Active dc filter for HVDC systems  

SciTech Connect (OSTI)

This article is a case history of the installation of active dc filters for high-performance, low-cost harmonics filtering at the Lindome converter station in the Konti-Skan 2 HVDC transmission link between Denmark and Sweden. The topics of the article include harmonics, interference, and filters, Lindome active dc filter, active dc filter design, digital signal processor, control scheme, protection and fault monitoring, and future applications.

Zhang, W. (Royal Inst. of Tech., Stockholm (Sweden)); Asplund, G.

1994-01-01T23:59:59.000Z

172

26 Tesla DC Magnet for Neutron Scattering  

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

Previously, DC Magnets located at Neutron-Scattering Beamlines were commercially-manufactured superconducting magnets and limited to 17 T. A few pulsed magnet systems have been...

173

Glass Ceramic Dielectrics for DC Bus Capacitors  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

174

The Violin as a Circuit  

Science Journals Connector (OSTI)

The paper applies elementary circuit ideas to bowed?string instruments and their component parts. Parameters are defined and calculations based on simple circuit diagrams for the main resonance and the air resonance; curves describe their combined performance. The relative importance of circuit resistances—wood loss radiation and wall?surface loss—is discussed. Wall?surface loss is an important component of air decrement. No material improvement is to be expected from change in decrement or enclosure volume.

John C. Schelleng

1963-01-01T23:59:59.000Z

175

Reliability Assessment of Fault-Tolerant Dc-Dc Converters for Photovoltaic Applications  

E-Print Network [OSTI]

Reliability Assessment of Fault-Tolerant Dc-Dc Converters for Photovoltaic Applications Sairaj V in photovoltaic energy processing applications is presented. The proposed approach acknowledges the influence through several case studies. Index Terms-- Markov reliability modeling, photovoltaic systems, power

Liberzon, Daniel

176

Radio frequency dc-dc converters : device characterization, topology evaluation, and design  

E-Print Network [OSTI]

High frequency power conversion is attractive for the opportunities it affords for improved performance. Dc-dc converters operating at high frequencies use smaller-valued energy storage elements, which tend to be physically ...

Leitermann, Olivia

2008-01-01T23:59:59.000Z

177

DC to DC power conversion module for the all-electric ship  

E-Print Network [OSTI]

The MIT end to end electric ship model is being developed to study competing electric ship designs. This project produced a model of a Power Conversion Module (PCM)- 4, DC-to-DC converter which interfaces with the MIT ...

Gray, Weston L

2011-01-01T23:59:59.000Z

178

A 4000-A HVDC (high-voltage direct-current) circuit breaker with fast fault-clearing capability: Final report  

SciTech Connect (OSTI)

This project is a follow-up of the first development of a 500 kV HVDC airblast circuit breaker (EPRI project 1507-3). The objective was to increase the current interrupting capability from 2200 A to 4000 A and shorten its fault clearing time. A high current 500 kV HVDC circuit breaker has been built using the passive commutation circuit. The breaker is modular in construction and can be designed for a wide variety of system conditions. More than 400 current interruptions were carried out successfully. Tests have shown that this circuit breaker is capable of interrupting more than 4000 A dc. Practical breakers with current interrupting capability of even 5500 A dc could be built. The circuit breaker operation and the fault-clearing process can be materially speeded up if the trip signal is given as soon as the fault is detected and without waiting for the current levels to come down in response to converter control action. The new dc breakers are shown to be capable of withstanding these transient arc currents of 8000 A without affecting its ability to interrupt the direct current that follows the transient. This transient current withstand capability is greater than is likely to occur during dc faults. The fault clearing time of this HVDC circuit breaker is comparable to the fault clearing time of conventional ac breakers for ac faults. The developed HVDC circuit breaker is now commercially available and can be supplied for use in HVDC systems. Its use in such systems is expected to provide flexibility in system design and contribute to system stability. 38 refs., 52 figs., 9 tabs.

Not Available

1988-04-01T23:59:59.000Z

179

Development of Robust Analog and Mixed-Signal Circuits in the Presence of Process- Voltage-Temperature Variations  

E-Print Network [OSTI]

to electrical power detectors is introduced by outlining a strategy for built-in testing of analog circuits with on-chip temperature sensors. Comparisons of an amplifier's measurement results at 1GHz with the measured DC voltage output of an on-chip temperature...

Onabajo, Marvin Olufemi

2012-07-16T23:59:59.000Z

180

Washington, DC~ZO585  

Office of Legacy Management (LM)

jpfl.3%2' jpfl.3%2' ) .,Departhent of Eikrgj! : Washington, DC~ZO585 .-, , , Lf; I: ~.1,' .Yj4 , The Honorable Louis Barlup 55 ,E. Main Street Waynesboro;,Pennsy,lvania 17268 '~ Dear Mayor Barl,up:' Secretary of Energy Hazel O'Leary has'announced' a new approach to openness,in the Department of Energy-(DOE) and its communications with the public. In support-of this initiative, we are pleased.to forward the enclosed information related to the former Landis Machine Tool Co. site in your jurisdiction that performed work for DOE or its predecessor agencies. This information:is provided for your information< use, and retention. DOE's Formerly Utilized Sites Remedial Action Program is responsible for identification of sites used by DOE's predecessor agencies, determining their

Note: This page contains sample records for the topic "dc circuit outage" 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

DOE - Office of Legacy Management -- Naval Research Laboratory - DC 02  

Office of Legacy Management (LM)

Research Laboratory - DC 02 Research Laboratory - DC 02 FUSRAP Considered Sites Site: NAVAL RESEARCH LABORATORY (DC.02 ) Eliminated from consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: Washington , D.C. DC.02-4 Evaluation Year: 1987 DC.02-4 Site Operations: Research and development on thermal diffusion. DC.02-4 Site Disposition: Eliminated - No Authority - AEC licensed - Military facility DC.02-4 DC.02-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium, Thorium DC.02-2 DC.02-3 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP - Referred to DOD DC.02-4 Also see Documents Related to NAVAL RESEARCH LABORATORY DC.02-1 - AEC Memorandum and Source Material License No. C-3393;

182

Recovery Act: Integrated DC-DC Conversion for Energy-Efficient Multicore Processors  

SciTech Connect (OSTI)

In this project, we have developed the use of thin-film magnetic materials to improve in energy efficiency of digital computing applications by enabling integrated dc-dc power conversion and management with on-chip power inductors. Integrated voltage regulators also enables fine-grained power management, by providing dynamic scaling of the supply voltage in concert with the clock frequency of synchronous logic to throttle power consumption at periods of low computational demand. The voltage converter generates lower output voltages during periods of low computational performance requirements and higher output voltages during periods of high computational performance requirements. Implementation of integrated power conversion requires high-capacity energy storage devices, which are generally not available in traditional semiconductor processes. We achieve this with integration of thin-film magnetic materials into a conventional complementary metal-oxide-semiconductor (CMOS) process for high-quality on-chip power inductors. This project includes a body of work conducted to develop integrated switch-mode voltage regulators with thin-film magnetic power inductors. Soft-magnetic materials and inductor topologies are selected and optimized, with intent to maximize efficiency and current density of the integrated regulators. A custom integrated circuit (IC) is designed and fabricated in 45-nm CMOS silicon-on-insulator (SOI) to provide the control system and power-train necessary to drive the power inductors, in addition to providing a digital load for the converter. A silicon interposer is designed and fabricated in collaboration with IBM Research to integrate custom power inductors by chip stacking with the 45-nm CMOS integrated circuit, enabling power conversion with current density greater than 10A/mm2. The concepts and designs developed from this work enable significant improvements in performance-per-watt of future microprocessors in servers, desktops, and mobile devices. These new approaches to scaled voltage regulation for computing devices also promise significant impact on electricity consumption in the United States and abroad by improving the efficiency of all computational platforms. In 2006, servers and datacenters in the United States consumed an estimated 61 billion kWh or about 1.5% of the nation's total energy consumption. Federal Government servers and data centers alone accounted for about 10 billion kWh, for a total annual energy cost of about $450 million. Based upon market growth and efficiency trends, estimates place current server and datacenter power consumption at nearly 85 billion kWh in the US and at almost 280 billion kWh worldwide. Similar estimates place national desktop, mobile and portable computing at 80 billion kWh combined. While national electricity utilization for computation amounts to only 4% of current usage, it is growing at a rate of about 10% a year with volume servers representing one of the largest growth segments due to the increasing utilization of cloud-based services. The percentage of power that is consumed by the processor in a server varies but can be as much as 30% of the total power utilization, with an additional 50% associated with heat removal. The approaches considered here should allow energy efficiency gains as high as 30% in processors for all computing platforms, from high-end servers to smart phones, resulting in a direct annual energy savings of almost 15 billion kWh nationally, and 50 billion kWh globally. The work developed here is being commercialized by the start-up venture, Ferric Semiconductor, which has already secured two Phase I SBIR grants to bring these technologies to the marketplace.

Shepard, Kenneth L

2013-03-31T23:59:59.000Z

183

Solid-state circuit breaker with current limiting characteristic using a superconducting coil  

DOE Patents [OSTI]

A thyristor bridge interposes an ac source and a load. A series connected DC source and superconducting coil within the bridge biases the thyristors thereof so as to permit bidirectional ac current flow therethrough under normal operating conditions. Upon a fault condition a control circuit triggers the thyristors so as to reduce ac current flow therethrough to zero in less than two cycles and to open the bridge thereafter. Upon a temporary overload condition the control circuit triggers the thyristors so as to limit ac current flow therethrough to an acceptable level.

Boenig, Heinrich J. (Los Alamos, NM)

1984-01-01T23:59:59.000Z

184

Solid-state circuit breaker with current-limiting characteristic using a superconducting coil  

DOE Patents [OSTI]

A thyristor bridge interposes an ac source and a load. A series connected DC source and superconducting coil within the bridge biases the thyristors thereof so as to permit bidirectional ac current flow therethrough under normal operating conditions. Upon a fault condition a control circuit triggers the thyristors so as to reduce ac current flow therethrough to zero in less than two eyeles and to open the bridge thereafter. Upon a temporary overload condition the control circuit triggers the thyristors so as to limit ac current flow therethrough to an acceptable level.

Boenig, H.J.

1982-08-16T23:59:59.000Z

185

Magnetic force microscopy method and apparatus to detect and image currents in integrated circuits  

DOE Patents [OSTI]

A magnetic force microscopy method and improved magnetic tip for detecting and quantifying internal magnetic fields resulting from current of integrated circuits. Detection of the current is used for failure analysis, design verification, and model validation. The interaction of the current on the integrated chip with a magnetic field can be detected using a cantilevered magnetic tip. Enhanced sensitivity for both ac and dc current and voltage detection is achieved with voltage by an ac coupling or a heterodyne technique. The techniques can be used to extract information from analog circuits.

Campbell, Ann. N. (13170-B Central SE #188, Albuquerque, NM 87123); Anderson, Richard E. (2800 Tennessee NE, Albuquerque, NM 87110); Cole, Jr., Edward I. (2116 White Cloud NE, Albuquerque, NM 87112)

1995-01-01T23:59:59.000Z

186

Magnetic force microscopy method and apparatus to detect and image currents in integrated circuits  

DOE Patents [OSTI]

A magnetic force microscopy method and improved magnetic tip for detecting and quantifying internal magnetic fields resulting from current of integrated circuits are disclosed. Detection of the current is used for failure analysis, design verification, and model validation. The interaction of the current on the integrated chip with a magnetic field can be detected using a cantilevered magnetic tip. Enhanced sensitivity for both ac and dc current and voltage detection is achieved with voltage by an ac coupling or a heterodyne technique. The techniques can be used to extract information from analog circuits. 17 figs.

Campbell, A.N.; Anderson, R.E.; Cole, E.I. Jr.

1995-11-07T23:59:59.000Z

187

Analog Circuit Design Spring 2008  

E-Print Network [OSTI]

Circuits, 3rd ed., McGraw Hill, 2002. Topics: 1. Op amp fundamentals (1 class period) 2. Op amp circuits honesty policy is fully described in the student handbook, and students are fully expected to adhere to it to an F for the course grade, and will be administered according to the student handbook. Class notes

Joiner, Laurie L.

188

Transmission Line Circuit Alexander Glasser  

E-Print Network [OSTI]

Chaos in a Transmission Line Circuit Alexander Glasser Marshal Miller With... Prof. Edward Ott Prof times become shorter, circuit connections behave more and more like transmission lines. Theoretical(t) - Transmission Line (Zo, T) #12;5 Cf/Cr 1000 Vf Capacitance Voltage Cf Cr Model for Nonlinear Capacitor

Anlage, Steven

189

NEURAL CIRCUITS ORIGINAL RESEARCH ARTICLE  

E-Print Network [OSTI]

NEURAL CIRCUITS ORIGINAL RESEARCH ARTICLE published: 14 May 2010 doi: 10.3389/fncir.2010.00013 Frontiers in Neural Circuits www.frontiersin.org May 2010 | Volume 4 | Article 13 | 1 Signal processing a more holistic standpoint (Roberts, 1979; Bialek et al., 1991). For a continuously firing cell

Trauner, Dirk

190

Washington, DC | Building Energy Codes Program  

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

Washington, DC Washington, DC Last updated on 2013-08-02 Current News In December, the DC CCCB voted 7-1 to adopt the 2012 IECC. The code will now enter administrative review and legislative process with likely adoption in the second half of 2013. Commercial Residential Code Change Current Code ASHRAE Standard 90.1-2007 with Amendments Amendments / Additional State Code Information Based on 2008 DC Construction Code with several amendments. State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the District of Columbia (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to ASHRAE 90.1-2007 Effective Date 12/26/2009 Adoption Date 12/26/2008 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No DC DOE Determination Letter, May 31, 2013

191

Modeling cortical circuits.  

SciTech Connect (OSTI)

The neocortex is perhaps the highest region of the human brain, where audio and visual perception takes place along with many important cognitive functions. An important research goal is to describe the mechanisms implemented by the neocortex. There is an apparent regularity in the structure of the neocortex [Brodmann 1909, Mountcastle 1957] which may help simplify this task. The work reported here addresses the problem of how to describe the putative repeated units ('cortical circuits') in a manner that is easily understood and manipulated, with the long-term goal of developing a mathematical and algorithmic description of their function. The approach is to reduce each algorithm to an enhanced perceptron-like structure and describe its computation using difference equations. We organize this algorithmic processing into larger structures based on physiological observations, and implement key modeling concepts in software which runs on parallel computing hardware.

Rohrer, Brandon Robinson; Rothganger, Fredrick H.; Verzi, Stephen J.; Xavier, Patrick Gordon

2010-09-01T23:59:59.000Z

192

Photoconductive circuit element reflectometer  

DOE Patents [OSTI]

A photoconductive reflectometer for characterizing semiconductor devices at millimeter wavelength frequencies where a first photoconductive circuit element (PCE) is biased by a direct current voltage source and produces short electrical pulses when excited into conductance by short first laser light pulses. The electrical pulses are electronically conditioned to improve the frequency related amplitude characteristics of the pulses which thereafter propagate along a transmission line to a device under test. Second PCEs are connected along the transmission line to sample the signals on the transmission line when excited into conductance by short second laser light pulses, spaced apart in time a determinable period from the first laser light pulses. Electronic filters connected to each of the second PCEs act as low-pass filters and remove parasitic interference from the sampled signals and output the sampled signals in the form of slowed-motion images of the signals on the transmission line. 4 figs.

Rauscher, C.

1987-12-07T23:59:59.000Z

193

Photoconductive circuit element reflectometer  

DOE Patents [OSTI]

A photoconductive reflectometer for characterizing semiconductor devices at millimeter wavelength frequencies where a first photoconductive circuit element (PCE) is biased by a direct current voltage source and produces short electrical pulses when excited into conductance by short first laser light pulses. The electrical pulses are electronically conditioned to improve the frequency related amplitude characteristics of the pulses which thereafter propagate along a transmission line to a device under test. Second PCEs are connected along the transmission line to sample the signals on the transmission line when excited into conductance by short second laser light pulses, spaced apart in time a variable period from the first laser light pulses. Electronic filters connected to each of the second PCEs act as low-pass filters and remove parasitic interference from the sampled signals and output the sampled signals in the form of slowed-motion images of the signals on the transmission line.

Rauscher, Christen (Alexandria, VA)

1990-01-01T23:59:59.000Z

194

Wavelet based analysis of circuit breaker operation  

E-Print Network [OSTI]

to operate at all. M H Yard DC + Yard DC _ Control DC + Control DC _ 52X TC CC 52Y Close Initiate Trip Initiate 52a 52Y/a 52a 52Y/b 52X/a 52Y/b 9 Coming from an operator in the control house, SCADA, relay, or other source...

Ren, Zhifang Jennifer

2004-09-30T23:59:59.000Z

195

Parallel VLSI Circuit Analysis and Optimization  

E-Print Network [OSTI]

CAD application addressed in this dissertation is the Simulation Program with Integrated Circuit Emphasis (SPICE) like circuit simulation. SPICE simulation is often regarded as the bottleneck of the design flow. Recently, parallel circuit simulation...

Ye, Xiaoji

2012-02-14T23:59:59.000Z

196

Data:52292588-d13e-466a-85dc-3192bc405028 | Open Energy Information  

Open Energy Info (EERE)

8-d13e-466a-85dc-3192bc405028 8-d13e-466a-85dc-3192bc405028 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Detroit Edison Co Effective date: 2011/12/21 End date if known: Rate name: INTERRUPTIBLE GENERAL SERVICE D3.3 (RETAIL SERVICE) Sector: Description: Available to no more than 300 customers desiring interruptible service in conjunction with service taken under the general service rate. Service to interruptible load shall be taken through separately metered circuits and permanently wired. The design and method of installation for application of this rate shall be subject to the approval of the Company. Service to interruptible load may not be transferred to firm service circuits to avoid interruption. At the Company's option, in lieu of the requirement for separately metered circuits and associated interrupted equipment the customer may elect to have interval demand metering installed in order to monitor compliance when called to interrupt load. Customers electing this option will pay a $25.00 per month service charge instead of the normal $8.78 per month service charge. This rate is not available for loads that are primarily off-peak, such as outdoor lighting.

197

A Review of DC Micro-grid Protection  

Science Journals Connector (OSTI)

In this paper, an overview of DC micro-grid is described, which includes the status of DC micro-grid protection and its future development. The paper presents the key techniques of DC micro-grid protection. So fa...

Yuhong Xie; Jia Ning; Yanquan Huang…

2013-01-01T23:59:59.000Z

198

Multi-port DC-DC Power Converter for Renewable Energy Application  

E-Print Network [OSTI]

of constant frequency. This work proposed and evaluated a new power circuit that can deal with the problem of the intermittent nature and slow response of the renewable energy. The proposed circuit integrates different renewable energy sources as well...

Chou, Hung-Ming

2010-01-16T23:59:59.000Z

199

Research on Energy Efficiency of DC Distribution System  

Science Journals Connector (OSTI)

Abstract Energy efficiency of DC distribution systems is researched in this paper. Efficiency calculation models of feeders and loads are established, efficiencies of AC/DC, DC/DC and DC/AC are analyzed. Moreover, energy efficiencies of an AC system and two DC systems, monopole and bipolar, are calculated and compared. The efficiency improvement of office building supplied by DC power system compared to supply by AC power system is demonstrated. From analysis, it is showed that the energy efficiency is higher in DC distribution system than AC distribution system.

Zifa Liu; Mengyu Li

2014-01-01T23:59:59.000Z

200

SAS Output  

Gasoline and Diesel Fuel Update (EIA)

B. U.S. Transformer Outages by Type and NERC region, 2012 Outage Type Eastern Interconnection TRE WECC Contiguous U.S. Circuit Outage Counts Automatic Outages (Sustained) 16.00 --...

Note: This page contains sample records for the topic "dc circuit outage" 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

Superconductive tunnel junction integrated circuit  

SciTech Connect (OSTI)

Josephson Junction integrated circuits of the current injection type and magnetically controlled type utilize a superconductive layer that forms both Josephson Junction electrode for the Josephson Junction devices on the integrated circuit as well as a ground plane for the integrated circuit. Large area Josephson Junctions are utilized for effecting contact to lower superconductive layers and islands are formed in superconductive layers to provide isolation between the groundplane function and the Josephson Junction electrode function as well as to effect crossovers. A superconductor-barrier-superconductor trilayer patterned by local anodization is also utilized with additional layers formed thereover. Methods of manufacturing the embodiments of the invention are disclosed.

Jillie, D.W. Jr.; Smith, L.N.

1984-02-07T23:59:59.000Z

202

Detailed design of a 13 kA 13 kV dc solid-state turn-off switch  

SciTech Connect (OSTI)

An experimental facility for the study of electromagnetic effects in the First Wall-Blanket-shield (FWBS) systems of fusion reactors has been constructed at Argonne National Laboratory (ANL). In a test volume of 0.76 m/sup 3/, a vertical, pulsed 5 kG dipole field (B < 320 kGs/sup -1/) is perpendicular to a 10 kG solenoid field. Power supplies of 2.75 MW at 550 V dc and 5.5 MW at 550 V dc and a solid-state switch rated at 13 kA and 13 kV (169 MW) control the pulsed magnetic fields. The total stored energy in the coils is 2.6 MJ. This paper describes the design and construction features of the solid-state switching circuit which turns off a dc of 13 kA in approximately 82 ..mu..s and holds off voltages of < 13 kV.

Praeg, W.F.

1985-01-01T23:59:59.000Z

203

Emerging WiFi Direct technique in home area networks for Smart Grid: Power consumption and outage performance  

Science Journals Connector (OSTI)

Abstract Considering the power saving potential of the emerging WiFi Direct technique, we evaluate the performance of WiFi Direct technique in Home Area Networks (HANs) for Smart Grid communication from two aspects: power consumption and downlink outage performance. By modeling the traffic intensity and the number of working devices in a dynamic HAN as a Markov chain, the power consumption of the dynamic HAN with Power Saving Mechanism (PSM) and the conventional static HAN with Continuous Active Mode (CAM) are evaluated and compared. On the other hand, the probability density function (PDF) of the signal to interference and noise ratio (SINR) for the active user connected in the HAN is derived from the amplitude distribution property of the classical indoor Saleh–Valenzuela (S–V) channel. The numerical results show that WiFi Direct technique not only improves the power saving in the HAN for Smart Grid, but also enhances the reliability of HAN communications for Smart Grid.

Zhuo Li; Qilian Liang; Xiuzhen Cheng

2014-01-01T23:59:59.000Z

204

News From the D.C. Office  

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

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office The federal government is the largest single purchaser in the world for many energy-related products. Federal buying power-along with that of state and local agencies-represents a largely untapped resource to increase the energy efficiency of consumer products and commercial equipment. LBL is helping the DOE Federal Energy Management Program (FEMP) develop and lead a government-wide initiative to capture this market-transforming opportunity. Jeff Harris and others in LBL's D.C. office are heading FEMP's efforts to identify how future federal purchases can be more energy-efficient. The U.S. government spends more than $70 billion a year to purchase supplies and equipment, of which an estimated $10-20 billion are energy-

205

D.C. | OpenEI Community  

Open Energy Info (EERE)

94 94 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142234494 Varnish cache server D.C. Home Kyoung's picture Submitted by Kyoung(155) Contributor 6 September, 2012 - 08:51 GRR Update Meeting scheduled for 9/13 in D.C. D.C. GRR meeting update The next Geothermal Regulatory Roadmap update meeting will be held in Washington, D.C. on Thursday, September 13 from 2-4 p.m. Syndicate content 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation:

206

DC readout experiment in Enhanced LIGO  

E-Print Network [OSTI]

The two 4 km long gravitational wave detectors operated by the Laser Interferometer Gravitational-wave Observatory (LIGO) were modified in 2008 to read out the gravitational wave channel using the DC readout form of homodyne ...

Fricke, Tobin T

207

Sandia National Laboratories: DC power optimizers  

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

DC power optimizers Sandia R&D Funded under New DOE SunShot Program On November 27, 2013, in Energy, News, News & Events, Partnership, Photovoltaic, Renewable Energy, Solar,...

208

Reverse engineering of integrated circuits  

DOE Patents [OSTI]

Software and a method therein to analyze circuits. The software comprises several tools, each of which perform particular functions in the Reverse Engineering process. The analyst, through a standard interface, directs each tool to the portion of the task to which it is most well suited, rendering previously intractable problems solvable. The tools are generally used iteratively to produce a successively more abstract picture of a circuit, about which incomplete a priori knowledge exists.

Chisholm, Gregory H. (Shorewood, IL); Eckmann, Steven T. (Colorado Springs, CO); Lain, Christopher M. (Pittsburgh, PA); Veroff, Robert L. (Albuquerque, NM)

2003-01-01T23:59:59.000Z

209

Recovery Act State Memos Washington, DC  

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

Washington, DC Washington, DC For questions about DOE's Recovery Act activities, please contact the DOE Recovery Act Clearinghouse: 1-888-DOE-RCVY (888-363-7289), Monday through Friday, 9 a.m. to 7 p.m. Eastern Time https://recoveryclearinghouse.energy.gov/contactUs.htm. All numbers and projects listed as of June 1, 2010 TABLE OF CONTENTS RECOVERY ACT SNAPSHOT................................................................................... 1 FUNDING ALLOCATION TABLE.............................................................................. 2 ENERGY EFFICIENCY ............................................................................................... 3 RENEWABLE ENERGY ............................................................................................. 5

210

The dependence of instructional outcomes on individual differences: An example from DC circuits  

E-Print Network [OSTI]

of resistors, two consistent, contradictory response patterns were identified: a greater equivalent resistance always dissipates more power, and a lesser equivalent resistance always dissipates more power. After that less resistance meant more power improved, while the performance of the opposing group did

Heckler, Andrew F.

211

Computer model of the MFTF-B neutral beam Accel dc power supply  

SciTech Connect (OSTI)

Using the SCEPTRE circuit modeling code, a computer model was developed for the MFTF Neutral Beam Power Supply System (NBPSS) Accel dc Power Supply (ADCPS). The ADCPS provides 90 kV, 88 A, to the Accel Modulator. Because of the complex behavior of the power supply, use of the computer model is necessary to adequately understand the power supply's behavior over a wide range of load conditions and faults. The model developed includes all the circuit components and parameters, and some of the stray values. The model has been well validated for transients with times on the order of milliseconds, and with one exception, for steady-state operation. When using a circuit modeling code for a system with a wide range of time constants, it can become impossible to obtain good solutions for all time ranges at once. The present model concentrates on the millisecond-range transients because the compensating capacitor bank tends to isolate the power supply from the load for faster transients. Attempts to include stray circuit elements with time constants in the microsecond and shorter range have had little success because of huge increases in computing time that result. The model has been successfully extended to include the accel modulator.

Wilson, J.H.

1983-11-30T23:59:59.000Z

212

A resonant load circuit to develop electrical power transfer of thermionic converters  

SciTech Connect (OSTI)

Low internal impedance of thermionic converters requires a low impedance load in the DC mode to obtain optimal power transfer. An internal resistance near 0.1 W for thermionic converters is common. According to the maximum power theorem [Desoer,1969], a similar magnitude for the resistance load must be fixed. Due to temperature changes, the internal plasma resistance and the resistance of the leads is modified [Houston,1959], for this reason, it is difficult to maintain maximum power transfer to the load. This paper presents a resonant load circuit for thermionic converters in the AC mode, to develop impedance coupling. The circuit employs an electrical transformer and positive feedback; by this way, oscillations are themselves maintained. It is used an electrical circuit model [Perez et al, 1997], to simulate the electrical behavior of the thermionic converter.

Perez, G.; Estrada, C.A.; Jimenez, A.E.

1998-07-01T23:59:59.000Z

213

DC's Marble ceiling : urban height and its regulation in Washington, DC  

E-Print Network [OSTI]

Washington, DC has a unique urban form that is the result of a century-old law. Through the narrow lens of DC's height limit, I survey a range of topics related to urban height, starting with a review of its history of ...

Trueblood, Andrew Tyson

2009-01-01T23:59:59.000Z

214

FC/Battery Power Management for Electric Vehicle Based Interleaved dc-dc Boost Converter Topology  

E-Print Network [OSTI]

FC/Battery Power Management for Electric Vehicle Based Interleaved dc- dc Boost Converter Topology power systems in electric vehicle application, in order to decrease the FC current ripple. Therefore the performance of the FC system during transient and instantaneous peak power demands in electric vehicle

Paris-Sud XI, Université de

215

Method to Improve Total Dose Radiation Hardness in a CMOS dc-dc Boost  

E-Print Network [OSTI]

in a wide range of radiation environment, with increasing total dose radiation, The efticieney also greatlyMethod to Improve Total Dose Radiation Hardness in a CMOS dc-dc Boost Converter Huadian Pan to natural radiation in space. Among the effects of ionizing radiation are shiftsin threshold voltageand

Wilamowski, Bogdan Maciej

216

5 kW Multilevel DC-DC Converter for Hybrid Electric and Fuel Cell Automotive  

E-Print Network [OSTI]

automobile, there are many electrical loads grouped into two main categories depending on the voltages5 kW Multilevel DC-DC Converter for Hybrid Electric and Fuel Cell Automotive Applications Faisal H. Khan1,2 Leon M. Tolbert2 fkhan3@utk.edu tolbert@utk.edu 1 Electric Power Research Institute (EPRI) 2

Tolbert, Leon M.

217

Pulsed dc self-sustained magnetron sputtering  

SciTech Connect (OSTI)

The magnetron sputtering has become one of the commonly used techniques for industrial deposition of thin films and coatings due to its simplicity and reliability. At standard magnetron sputtering conditions (argon pressure of {approx}0.5 Pa) inert gas particles (necessary to sustain discharge) are often entrapped in the deposited films. Inert gas contamination can be eliminated during the self-sustained magnetron sputtering (SSS) process, where the presence of the inert gas is not a necessary requirement. Moreover the SSS process that is possible due to the high degree of ionization of the sputtered material also gives a unique condition during the transport of sputtered particles to the substrate. So far it has been shown that the self-sustained mode of magnetron operation can be obtained using dc powering (dc-SSS) only. The main disadvantage of the dc-SSS process is its instability related to random arc formation. In such case the discharge has to be temporarily extinguished to prevent damaging both the magnetron source and power supply. The authors postulate that pulsed powering could protect the SSS process against arcs, similarly to reactive pulsed magnetron deposition processes of insulating thin films. To put this concept into practice, (i) the high enough plasma density has to be achieved and (ii) the type of pulsed powering has to be chosen taking plasma dynamics into account. In this article results of pulsed dc self-sustained magnetron sputtering (pulsed dc-SSS) are presented. The planar magnetron equipped with a 50 mm diameter and 6 mm thick copper target was used during the experiments. The maximum target power was about 11 kW, which corresponded to the target power density of {approx}560 W/cm{sup 2}. The magnetron operation was investigated as a function of pulse frequency (20-100 kHz) and pulse duty factor (50%-90%). The discharge (argon) extinction pressure level was determined for these conditions. The plasma emission spectra (400-410 nm range) and deposition rates were observed for both dc and pulsed dc self-sustained sputtering processes. The pulse characteristics of the voltage and current of the magnetron source during pulsed dc-SSS operation are shown. The presented results illustrate that a stable pulsed dc-SSS process can be obtained at a pulsing frequency in the range of 60-90 kHz and duty factor of 80%-90%.

Wiatrowski, A.; Posadowski, W. M.; Radzimski, Z. J. [Faculty of Microsystems, Electronics and Photonics, Wroclaw University of Technology, Janiszewskiego 11/17, 50-372 Wroclaw (Poland); Silicon Quest International, Santa Clara, California (United States)

2008-09-15T23:59:59.000Z

218

Vertically Integrated Circuits at Fermilab  

SciTech Connect (OSTI)

The exploration of the vertically integrated circuits, also commonly known as 3D-IC technology, for applications in radiation detection started at Fermilab in 2006. This paper examines the opportunities that vertical integration offers by looking at various 3D designs that have been completed by Fermilab. The emphasis is on opportunities that are presented by through silicon vias (TSV), wafer and circuit thinning and finally fusion bonding techniques to replace conventional bump bonding. Early work by Fermilab has led to an international consortium for the development of 3D-IC circuits for High Energy Physics. The consortium has submitted over 25 different designs for the Fermilab organized MPW run organized for the first time.

Deptuch, Grzegorz; Demarteau, Marcel; Hoff, James; Lipton, Ronald; Shenai, Alpana; Trimpl, Marcel; Yarema, Raymond; Zimmerman, Tom; /Fermilab

2009-01-01T23:59:59.000Z

219

Nuclear sensor signal processing circuit  

DOE Patents [OSTI]

An apparatus and method are disclosed for a compact and temperature-insensitive nuclear sensor that can be calibrated with a non-hazardous radioactive sample. The nuclear sensor includes a gamma ray sensor that generates tail pulses from radioactive samples. An analog conditioning circuit conditions the tail-pulse signals from the gamma ray sensor, and a tail-pulse simulator circuit generates a plurality of simulated tail-pulse signals. A computer system processes the tail pulses from the gamma ray sensor and the simulated tail pulses from the tail-pulse simulator circuit. The nuclear sensor is calibrated under the control of the computer. The offset is adjusted using the simulated tail pulses. Since the offset is set to zero or near zero, the sensor gain can be adjusted with a non-hazardous radioactive source such as, for example, naturally occurring radiation and potassium chloride.

Kallenbach, Gene A. (Bosque Farms, NM); Noda, Frank T. (Albuquerque, NM); Mitchell, Dean J. (Tijeras, NM); Etzkin, Joshua L. (Albuquerque, NM)

2007-02-20T23:59:59.000Z

220

Good Energies (Washington DC) | Open Energy Information  

Open Energy Info (EERE)

Energies (Washington DC) Energies (Washington DC) Name Good Energies (Washington DC) Address 1250 24th St., NW, Suite 250 Place Washington, District of Columbia Zip 20037 Product Global investor in renewable energy and energy efficiency industries Year founded 2001 Phone number (202) 747-2550 Website http://www.goodenergies.com/ Coordinates 38.90649°, -77.051534° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.90649,"lon":-77.051534,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "dc circuit outage" 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

New Experimental Data in DC745U  

SciTech Connect (OSTI)

The objectives of this project are: (1) study the molecular and mechanical properties of DC745U - (a) DC745U is a silicone elastomer used in several weapons systems, (b) depending on their chemistry and formulation, polymers can be susceptible to damage and failures due to weak chemical linkages and physical interactions, (c) inefficient production processes can generate heterogeneities throughout the material that can contribute negatively to the overall performance and lifetime of the polyer, (d) aging, long-term thermal and radioactive conditions, and mechanical strains can affect the materials network structure and contribute to the degradation of the production; (2) characterization of DC745U materials cured under different conditions to determine possible differences to the polymer structure; and (3) this work is relevant to mission-critical programs and for supporting programmatic work for weapon research.

Ortiz-Acosta, Denisse [Los Alamos National Laboratory; Cady, Carl [Los Alamos National Laboratory; Densmore, Crystal [Los Alamos National Laboratory

2012-06-18T23:59:59.000Z

222

DC transformer for DC/DC connection in HVDC network M. Jimenez Carrizosa1, A. Benchaib2, P. Alou3, G. Damm4  

E-Print Network [OSTI]

DC transformer for DC/DC connection in HVDC network M. Jim´enez Carrizosa1, A. Benchaib2, P. Alou3>>, >, HVDC>>, > . Abstract This paper presents the modeling and control for the integration of an offshore wind farm in a High Voltage Direct Current (HVDC). Until developed of VSC (voltage

Paris-Sud XI, Université de

223

Silicon-on-insulator-based high-voltage, high-temperature integrated circuit gate driver for silicon carbide-based power field effect transistors  

SciTech Connect (OSTI)

Silicon carbide (SiC)-based field effect transistors (FETs) are gaining popularity as switching elements in power electronic circuits designed for high-temperature environments like hybrid electric vehicle, aircraft, well logging, geothermal power generation etc. Like any other power switches, SiC-based power devices also need gate driver circuits to interface them with the logic units. The placement of the gate driver circuit next to the power switch is optimal for minimising system complexity. Successful operation of the gate driver circuit in a harsh environment, especially with minimal or no heat sink and without liquid cooling, can increase the power-to-volume ratio as well as the power-to-weight ratio for power conversion modules such as a DC-DC converter, inverter etc. A silicon-on-insulator (SOI)-based high-voltage, high-temperature integrated circuit (IC) gate driver for SiC power FETs has been designed and fabricated using a commercially available 0.8--m, 2-poly and 3-metal bipolar-complementary metal oxide semiconductor (CMOS)-double diffused metal oxide semiconductor (DMOS) process. The prototype circuit-s maximum gate drive supply can be 40-V with peak 2.3-A sourcing/sinking current driving capability. Owing to the wide driving range, this gate driver IC can be used to drive a wide variety of SiC FET switches (both normally OFF metal oxide semiconductor field effect transistor (MOSFET) and normally ON junction field effect transistor (JFET)). The switching frequency is 20-kHz and the duty cycle can be varied from 0 to 100-. The circuit has been successfully tested with SiC power MOSFETs and JFETs without any heat sink and cooling mechanism. During these tests, SiC switches were kept at room temperature and ambient temperature of the driver circuit was increased to 200-C. The circuit underwent numerous temperature cycles with negligible performance degradation.

Tolbert, Leon M [ORNL; Huque, Mohammad A [ORNL; Blalock, Benjamin J [ORNL; Islam, Syed K [ORNL

2010-01-01T23:59:59.000Z

224

Vertical Circuits Inc | Open Energy Information  

Open Energy Info (EERE)

Circuits Inc Circuits Inc Jump to: navigation, search Name Vertical Circuits, Inc. Place Scotts Valley, California Zip 95066 Sector Services Product Vertical Circuits Inc. is a global supplier of advanced die level vertical interconnect packaging technology, products, services and intellectual property for the manufacture of low cost ultra high-speed/high-density semiconductor components. References Vertical Circuits, Inc.[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Vertical Circuits, Inc. is a company located in Scotts Valley, California . References ↑ "Vertical Circuits, Inc." Retrieved from "http://en.openei.org/w/index.php?title=Vertical_Circuits_Inc&oldid=352802"

225

Circuit Optimization Using Efficient Parallel Pattern Search  

E-Print Network [OSTI]

Circuit optimization is extremely important in order to design today's high performance integrated circuits. As systems become more and more complex, traditional optimization techniques are no longer viable due to the complex and simulation...

Narasimhan, Srinath S.

2011-08-08T23:59:59.000Z

226

Refinery Outages: Fall 2014  

U.S. Energy Information Administration (EIA) Indexed Site

well- supplied with middle distillate fuel oil, not only from Europe but also from Russia, India and the Middle East. As a result, planned maintenance this fall at Eastern...

227

Perseus LLC (Washington DC) | Open Energy Information  

Open Energy Info (EERE)

DC) DC) Jump to: navigation, search Logo: Perseus LLC (Washington DC) Name Perseus LLC (Washington DC) Address 2099 Pennsylvania Avenue, N.W., 9th Floor Place Washington, District of Columbia Zip 20006 Product Private equity fund Year founded 1995 Phone number (202) 452-0101 Website http://www.perseusllc.com/ Coordinates 38.901462°, -77.046347° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.901462,"lon":-77.046347,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

228

FEDERAL ENERGY WASHINGTON, D.C. 20426  

E-Print Network [OSTI]

FEDERAL ENERGY REGULATORY COMMISSION WASHINGTON, D.C. 20426 NEWS RELEASE NEWS MEDIA CONTACT judge, the Federal Energy Regulatory Commission today ordered an expedited fact-finding hearing of the discussions. #12;Chairman Curt L. HĂ©bert, Jr. stated as follows: "At some point, regulatory and R-01-33 (more

Laughlin, Robert B.

229

DNA Hybridization Catalysts and Catalyst Circuits  

E-Print Network [OSTI]

blocks for a synthetic DNA-based circuit. While ri- bozymes are the best known example of nucleic acids

Winfree, Erik

230

SYSTEMATIC SYNTHESIS METHOD FOR ANALOGUE CIRCUITS PART III ALL-TRANSISTOR CIRCUIT SYNTHESIS  

E-Print Network [OSTI]

SYSTEMATIC SYNTHESIS METHOD FOR ANALOGUE CIRCUITS ­ PART III ALL-TRANSISTOR CIRCUIT SYNTHESIS David papers (subtitled Parts I and II) together present a systematic synthesis method for analogue circuits. This paper illustrates the synthesis method by deriving and analysing some known all- transistor circuits

Papavassiliou, Christos

231

Improved Simulation of Stabilizer Circuits Scott Aaronson #  

E-Print Network [OSTI]

Improved Simulation of Stabilizer Circuits Scott Aaronson # University of California, Berkeley---that is, a quantum circuit con­ sisting solely of CNOT, Hadamard, and phase gates---can be simulated e that stabilizer circuits are probably not even universal for classical computation. Third, we give e

Aaronson, Scott

232

Integrated Circuit / Microfluidic Chips for Dielectric Manipulation  

E-Print Network [OSTI]

Integrated Circuit / Microfluidic Chips for Dielectric Manipulation A THESIS PRESENTED BY THOMAS by Thomas Hunt All rights reserved. #12;iii Abstract Integrated Circuit / Microfluidic Chips for Dielectric of integrated circuit / microfluidic chips to move individual living cells and chemical droplets along

Heller, Eric

233

Voltage, energy and power in electric circuits  

E-Print Network [OSTI]

Voltage, energy and power in electric circuits Science teaching unit #12;Disclaimer The Department-2008DVD-EN Voltage, energy and power in electric circuits #12;#12;© Crown copyright 2008 1The National Strategies | Secondary Voltage, energy and power in electric circuits 00094-2008DVD-EN Contents Voltage

Berzins, M.

234

The Ideal Transformer Description and Circuit Symbol  

E-Print Network [OSTI]

The Ideal Transformer Description and Circuit Symbol As with all the other circuit elements, there is a physical transformer commonly used in circuits whose behavior can be discussed in great detail. However, in many cases the practical transformer can be adequately approximated by the "ideal transformer," which

King, Roger

235

A Three-Phase Bidirectional DC-DC Converter for Automotive Applications  

SciTech Connect (OSTI)

This paper presents a three-phase soft-switching, bidirectional dc-dc converter for high-power automotive applications. The converter employs dual three-phase active bridges and operates with a novel asymmetrical but fixed duty cycle for the top and bottom switches of each phase leg. Simulation and experimental data on a 6-kW prototype are included to verify the novel operating and power flow control principles.

Su, Gui-Jia [ORNL; Tang, Lixin [ORNL

2008-01-01T23:59:59.000Z

236

Design of bulk thermoelectric modules for integrated circuit thermal management  

E-Print Network [OSTI]

Index Terms—Contact resistance, equivalent circuit models,1-D equivalent circuit model. When the thermal resistance

Fukutani, K; Shakouri, A

2006-01-01T23:59:59.000Z

237

Federal Government Congressional Budget Office, Budget Analysis Division Washington, DC  

E-Print Network [OSTI]

Administration, Center for Drug Evaluation and Research Washington, DC Federal Energy Regulatory CommissionFederal Government Congressional Budget Office, Budget Analysis Division Washington, DC Department Environmental Protection Agency, Office of Transportation & Air Quality Ann Arbor, MI Federal Drug

Shyy, Wei

238

National Small Business Federal Contracting Summit-DC Fall Conference...  

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

National Small Business Federal Contracting Summit-DC Fall Conference National Small Business Federal Contracting Summit-DC Fall Conference November 6, 2014 8:00AM to 4:00PM EST...

239

DC High School Science Bowl Regionals | Department of Energy  

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

DC High School Science Bowl Regionals DC High School Science Bowl Regionals February 22, 2014 1:15PM to 8:15PM EST Department of Energy headquarters - 1000 Independence Ave SW,...

240

A Cascade Multilevel Inverter Using a Single DC Source  

E-Print Network [OSTI]

A Cascade Multilevel Inverter Using a Single DC Source Zhong Du1, Leon M. Tolbert2 3, John N inverter can be implemented using only a single DC power source and capacitors. A standard cascade multilevel inverter requires DC sources for 2 + 1 levels. Without requiring transformers, the scheme proposed

Tolbert, Leon M.

Note: This page contains sample records for the topic "dc circuit outage" 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

Definition: Automated Distribution Circuit Switches | Open Energy  

Open Energy Info (EERE)

Circuit Switches Circuit Switches Jump to: navigation, search Dictionary.png Automated Distribution Circuit Switches Distribution circuit switches that can be operated automatically in response to control signals from local sensors, distribution automation systems, or grid control systems. Such switches can be installed as automated devices or existing equipment can be retrofitted with controls and communications. The degree of automation depends on the controls and communications system implemented. These switches can be opened or closed to isolate portions of a distribution circuit that has experienced a short circuit (fault), or must be taken out of service for maintenance or other operations. When used in combination, these switches can reroute power from other substations or nearby distribution circuits.[1]

242

Photoconductive circuit element pulse generator  

DOE Patents [OSTI]

A pulse generator for characterizing semiconductor devices at millimeter wavelength frequencies where a photoconductive circuit element (PCE) is biased by a direct current voltage source and produces short electrical pulses when excited into conductance by short laser light pulses. The electrical pulses are electronically conditioned to improve the frequency related amplitude characteristics of the pulses which thereafter propagate along a transmission line to a device under test.

Rauscher, Christen (Alexandria, VA)

1989-01-01T23:59:59.000Z

243

Notices 888 First Street, NE., Washington, DC  

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

11 Federal Register 11 Federal Register / Vol. 76, No. 122 / Friday, June 24, 2011 / Notices 888 First Street, NE., Washington, DC 20426. The filings in the above-referenced proceeding are accessible in the Commission's eLibrary system by clicking on the appropriate link in the above list. They are also available for review in the Commission's Public Reference Room in Washington, DC. There is an eSubscription link on the Web site that enables subscribers to receive e-mail notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please e-mail FERCOnlineSupport@ferc.gov or call (866) 208-3676 (toll free). For TTY, call (202) 502-8659. Dated: June 20, 2011. Kimberly D. Bose, Secretary. [FR Doc. 2011-15859 Filed 6-23-11; 8:45 am]

244

Notices 888 First Street NE., Washington, DC  

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

53 Federal Register 53 Federal Register / Vol. 78, No. 56 / Friday, March 22, 2013 / Notices 888 First Street NE., Washington, DC 20426. This filing is accessible on-line at http://www.ferc.gov, using the ''eLibrary'' link and is available for review in the Commission's Public Reference Room in Washington, DC. There is an ''eSubscription'' link on the Web site that enables subscribers to receive email notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please email FERCOnlineSupport@ferc.gov, or call (866) 208-3676 (toll free). For TTY, call (202) 502-8659. Comment Date: 5:00 p.m. Eastern Time on April 2, 2013. Dated: March 15, 2013. Kimberly D. Bose, Secretary. [FR Doc. 2013-06602 Filed 3-21-13; 8:45 am] BILLING CODE 6717-01-P

245

Data:868d2639-dc07-45f0-ab24-163991351a24 | Open Energy Information  

Open Energy Info (EERE)

639-dc07-45f0-ab24-163991351a24 639-dc07-45f0-ab24-163991351a24 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Springfield, Oregon (Utility Company) Effective date: 2013/05/01 End date if known: Rate name: Private Lighting 135 W LPS L-3 Sector: Lighting Description: New Lighting systems shall be overhead construction consisting of wood poles, aerial circuits, and conventional street lighting luminaries with mast arms not longer than ten feet, or floodlighting luminaries with no mast arms. The installed luminaries shall use low-pressure sodium lamps. All equipment used to provide service under this schedule will be furnished, owned, operated and maintained by the Springfield Utility Board.

246

AVTA: Hasdec DC Fast Charging Testing Results  

Broader source: Energy.gov [DOE]

The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. The following report describes results from testing done on the Hasdec DC fast charging system for plug-in electric vehicles. This research was conducted by Idaho National Laboratory.

247

DC side filters for multiterminal HVDC systems  

SciTech Connect (OSTI)

Multiterminal HVDC systems present challenges in the specification and design of suitable dc side filtering. This document examines the existing experience and addresses the particular technical problems posed by multiterminal systems. The filtering requirements of small taps are discussed, as is the potential use of active filters. Aspects of calculation and design are considered and recommendations made to guide the planners and designers of future multiterminal schemes.

Shore, N.L.; Adamson, K.; Bard, P. [and others] [and others

1996-10-01T23:59:59.000Z

248

An equivalent circuit model and power calculations for the APS SPX crab cavities.  

SciTech Connect (OSTI)

An equivalent parallel resistor-inductor-capacitor (RLC) circuit with beam loading for a polarized TM110 dipole-mode cavity is developed and minimum radio-frequency (rf) generator requirements are calculated for the Advanced Photon Source (APS) short-pulse x-ray (SPX) superconducting rf (SRF) crab cavities. A beam-loaded circuit model for polarized TM110 mode crab cavities was derived. The single-cavity minimum steady-state required generator power has been determined for the APS SPX crab cavities for a storage ring current of 200mA DC current as a function of external Q for various vertical offsets including beam tilt and uncontrollable detuning. Calculations to aid machine protection considerations were given.

Berenc, T. (Accelerator Systems Division (APS))

2012-03-21T23:59:59.000Z

249

Energy Incentive Programs, Washington DC | Department of Energy  

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

Washington DC Washington DC Energy Incentive Programs, Washington DC October 29, 2013 - 11:29am Addthis Updated August 2013 What public-purpose-funded energy efficiency programs are available in the District of Columbia? In 2008, the Council of the District of Columbia passed the Clean and Affordable Energy Act (CAEA), establishing the DC Sustainable Energy Utility (DC SEU), whose mission is to provide energy assistance to low-income residents and support energy efficiency and renewable energy programs. The DC SEU, funded by the Sustainable Energy Trust Fund (also created by the CAEA) and under contract to the District Department of the Environment (DDOE), helps District residents, businesses, and institutions save energy and money. The DC SEU provides comprehensive energy services to targeted, prioritized

250

New leading/trailing edge modulation strategies for two-stage AC/DC PFC adapters to reduce DC-link capacitor ripple current  

E-Print Network [OSTI]

AC/DC adapters mostly employ two-stage topology: Power Factor Correction (PFC) pre-regulation stage followed by an isolated DC/DC converter stage. Low power AC/DC adapters require a small size to be competitive. Among their components, the bulk DC...

Sun, Jing

2007-09-17T23:59:59.000Z

251

Creating dynamic equivalent PV circuit models with impedance spectroscopy for arc-fault modeling.  

SciTech Connect (OSTI)

Article 690.11 in the 2011 National Electrical Code{reg_sign} (NEC{reg_sign}) requires new photovoltaic (PV) systems on or penetrating a building to include a listed arc fault protection device. Currently there is little experimental or empirical research into the behavior of the arcing frequencies through PV components despite the potential for modules and other PV components to filter or attenuate arcing signatures that could render the arc detector ineffective. To model AC arcing signal propagation along PV strings, the well-studied DC diode models were found to inadequately capture the behavior of high frequency arcing signals. Instead dynamic equivalent circuit models of PV modules were required to describe the impedance for alternating currents in modules. The nonlinearities present in PV cells resulting from irradiance, temperature, frequency, and bias voltage variations make modeling these systems challenging. Linearized dynamic equivalent circuits were created for multiple PV module manufacturers and module technologies. The equivalent resistances and capacitances for the modules were determined using impedance spectroscopy with no bias voltage and no irradiance. The equivalent circuit model was employed to evaluate modules having irradiance conditions that could not be measured directly with the instrumentation. Although there was a wide range of circuit component values, the complex impedance model does not predict filtering of arc fault frequencies in PV strings for any irradiance level. Experimental results with no irradiance agree with the model and show nearly no attenuation for 1 Hz to 100 kHz input frequencies.

Johnson, Jay Dean; Kuszmaul, Scott S.; Strauch, Jason E.; Schoenwald, David Alan

2011-06-01T23:59:59.000Z

252

Set Phasors to Analyze Circuits Abe Karplus  

E-Print Network [OSTI]

of 19 #12;by-zero problems (DC is frequency zero). Impedance and admittance are the AC equivalent of resistance and conductance in DC analysis, that is, admittance is 1/ impedance. The impedance of a resistor is its resistance, the impedance of an inductor is j * omega * inductance, and the impedance

Karplus, Kevin

253

Circuit considerations for repetitive railguns  

SciTech Connect (OSTI)

Railgun electromagnetic launchers have significant military and scientific potential. They provide direct conversion of electrical energy to projectile kinetic energy, and they offer the hope of achieving projectile velocities greatly exceeding the limits of conventional guns. With over 10 km/sec already demonstrated, railguns are attracting attention for tactical and strategic weapons systems and for scientific equation-of-state research. The full utilization of railguns will require significant improvements in every aspect of system design - projectile, barrel, and power source - to achieve operation on a large scale. This paper will review fundamental aspects of railguns, with emphasis on circuit considerations and repetitive operation.

Honih, E.M.

1986-01-01T23:59:59.000Z

254

Polysilicon photoconductor for integrated circuits  

DOE Patents [OSTI]

A photoconductive element of polycrystalline silicon is provided with intrinsic response time which does not limit overall circuit response. An undoped polycrystalline silicon layer is deposited by LPCVD to a selected thickness on silicon dioxide. The deposited polycrystalline silicon is then annealed at a selected temperature and for a time effective to obtain crystal sizes effective to produce an enhanced current output. The annealed polycrystalline layer is subsequently exposed and damaged by ion implantation to a damage factor effective to obtain a fast photoconductive response. 6 figs.

Hammond, R.B.; Bowman, D.R.

1989-04-11T23:59:59.000Z

255

Printed circuit dispersive transmission line  

DOE Patents [OSTI]

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

1991-08-27T23:59:59.000Z

256

Printed circuit dispersive transmission line  

DOE Patents [OSTI]

A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other.

Ikezi, Hiroyuki (Rancho Santa Fe, CA); Lin-Liu, Yuh-Ren (San Diego, CA); DeGrassie, John S. (Encinitas, CA)

1991-01-01T23:59:59.000Z

257

Circuit reconstruction tools today Stephen J Smith  

E-Print Network [OSTI]

Circuit reconstruction tools today Stephen J Smith To understand how a brain processes information, Stanford University School of Medicine, Stanford, CA 94305, United States Corresponding author: Smith

Born, Richard

258

Fun D.C. Jobs for Physicists  

SciTech Connect (OSTI)

Physicists make valuable contributions in a wide variety of careers, including those in Washington. Many national challenges, including energy, innovation, and security, create a demand for technically-competent individuals across government. Clark will discuss some of the many programs in D.C. designed to attract the best and brightest minds, from grad-students to professors, from short-term assignments to whole new careers. These are great opportunities to use your expertise and enrich your knowledge of the broader scientific enterprise, all while serving society.

Clark Cully

2009-09-30T23:59:59.000Z

259

Wide input range DC-DC converter with digital control scheme  

E-Print Network [OSTI]

boost converter a battery or ultracapacitor energy storage is connected to take care of the fuel cell slow transient response (200 watts/min). The robust features of the proposed control system ensure a constant output DC voltage for a variety of load...

Harfman Todorovic, Maja

2006-04-12T23:59:59.000Z

260

Washington DC's First Electric Vehicle Charging Station | Department of  

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

Washington DC's First Electric Vehicle Charging Station Washington DC's First Electric Vehicle Charging Station Washington DC's First Electric Vehicle Charging Station November 17, 2010 - 11:28am Addthis Street signage for Washington, DC's first electric vehicle charging station located on the northwest corner of the intersection of U and 14th streets. | Department of Energy Photo | Street signage for Washington, DC's first electric vehicle charging station located on the northwest corner of the intersection of U and 14th streets. | Department of Energy Photo | Shannon Brescher Shea Communications Manager, Clean Cities Program It's always exciting to attend a grand opening, especially when it represents a "first" for an entire region. Yesterday, the U.S. Department of Energy and the city of Washington, DC joined together to

Note: This page contains sample records for the topic "dc circuit outage" 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

Circuit breaker monitoring application using wireless communication  

E-Print Network [OSTI]

Circuit breakers are used in the power system to break or make current flow through power apparatus. Reliable operation of circuit breakers is critical to the well- being of the power system and can be achieved by regular inspection and maintenance...

Ved, Nitin

2007-04-25T23:59:59.000Z

262

A Spatial Computing Architecture Implementing Computation Circuits  

E-Print Network [OSTI]

A Spatial Computing Architecture for Implementing Computation Circuits David Grant Supervisor: Dr Architecture Tools Preliminary Results Conclusions #12;3 Introduction Computational Circuits Software MB of memory ­ Add a few million gates ??? #12;5 Architecture and Tools to implement computational

Lemieux, Guy

263

www.plusplasticelectronics.com THE CIRCUIT  

E-Print Network [OSTI]

www.plusplasticelectronics.com THE CIRCUIT + SMART FABRICS 2011 + SMART TEXTILES SALON watch NANOMATERIALS IN PRINTED ELECTRONICS The circuit SMART FABRICS 2011 SMART TEXTILES SALON in Physics in 2010 for their discovery of graphene, an ultra-thin carbon material with extraordinary

Aksay, Ilhan A.

264

DC Bus Capacitor Manufacturing Facility for Electric Drive Vehicles  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

265

DC Resistivity Survey (Wenner Array) At Mt Princeton Hot Springs...  

Open Energy Info (EERE)

Determination of groundwater flux patterns Notes Researchers measured DC resistivity and produced 12 resistivity profiles, each approximately 1.3 km in length. Equilibrium...

266

Low Cost, High Temperature, High Ripple Current DC Bus Capacitors  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

267

Exploring the Raft River geothermal area, Idaho, with the dc...  

Open Energy Info (EERE)

geothermal area, Idaho, with the dc resistivity method (Abstract) Abstract GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; ELECTRICAL SURVEYS; IDAHO; GEOTHERMAL EXPLORATION; RAFT RIVER...

268

Deutsch Algorithm on Classical Circuits  

E-Print Network [OSTI]

The well-known Deutsch Algorithm (DA) and Deutsch-Jozsha Algorithm (DJA) both are used as an evidence to the power of quantum computers over classical computation mediums. In these theoretical experiments, it has been shown that a quantum computer can find the answer with certainty within a few steps although classical electronic systems must evaluate more iterations than quantum computer. In this paper, it is shown that a classical computation system formed by using ordinary electronic parts may perform the same task with equal performance than quantum computers. DA and DJA quantum circuits act like an analog computer, so it is unfair to compare the bit of classical digital computers with the qubit of quantum computers. An analog signal carrying wire will of course carry more information that a bit carrying wire without serial communication protocols.

Osman Kaan Erol

2008-03-21T23:59:59.000Z

269

Sequential power-up circuit  

DOE Patents [OSTI]

A sequential power-up circuit for starting several electrical load elements in series to avoid excessive current surge, comprising a voltage ramp generator and a set of voltage comparators, each comparator having a different reference voltage and interfacing with a switch that is capable of turning on one of the load elements. As the voltage rises, it passes the reference voltages one at a time and causes the switch corresponding to that voltage to turn on its load element. The ramp is turned on and off by a single switch or by a logic-level electrical signal. The ramp rate for turning on the load element is relatively slow and the rate for turning the elements off is relatively fast. Optionally, the duration of each interval of time between the turning on of the load elements is programmable. 2 figs.

Kronberg, J.W.

1992-06-02T23:59:59.000Z

270

Reusable vibration resistant integrated circuit mounting socket  

DOE Patents [OSTI]

This invention discloses a novel form of socket for integrated circuits to be mounted on printed circuit boards. The socket uses a novel contact which is fabricated out of a bimetallic strip with a shape which makes the end of the strip move laterally as temperature changes. The end of the strip forms a barb which digs into an integrated circuit lead at normal temperatures and holds it firmly in the contact, preventing loosening and open circuits from vibration. By cooling the contact containing the bimetallic strip the barb end can be made to release so that the integrated circuit lead can be removed from the socket without damage either to the lead or to the socket components.

Evans, Craig N. (Irwin, PA)

1995-01-01T23:59:59.000Z

271

Low noise charge sensitive preamplifier DC stabilized without a physical resistor  

DOE Patents [OSTI]

The invention is a novel charge sensitive preamplifier (CSP) which has no resistor in parallel with the feedback capacitor. No resetting circuit is required to discharge the feedback capacitor. The DC stabilization of the preamplifier is obtained by means of a second feedback loop between the preamplifier output and the common base transistor of the input cascode. The input transistor of the preamplifier is a Junction Field Transistor (JFET) with the gate-source junction forward biased. The detector leakage current flows into this junction. This invention is concerned with a new circuit configuration for a charge sensitive preamplifier and a novel use of the input Field Effect Transistor of the CSP itself. In particular this invention, in addition to eliminating the feedback resistor, eliminates the need for external devices between the detector and the preamplifier, and it eliminates the need for external circuitry to sense the output voltage and reset the CSP. Furthermore, the noise level of the novel CSP is very low, comparable with the performance achieved with other solutions. Experimental tests prove that this configuration for the charge sensitive preamplifier permits an excellent noise performance at temperatures including room temperature. An equivalent noise charge of less than 20 electrons r.m.s. has been measured at room temperature by using a commercial JFET as input device of the preamplifier.

Bertuccio, Giuseppe (Brianza, IT); Rehak, Pavel (Patchogue, NY); Xi, Deming (Beijing, CN)

1994-09-13T23:59:59.000Z

272

Low noise charge sensitive preamplifier DC stabilized without a physical resistor  

DOE Patents [OSTI]

The invention is a novel charge sensitive preamplifier (CSP) which has no resistor in parallel with the feedback capacitor. No resetting circuit is required to discharge the feedback capacitor. The DC stabilization of the preamplifier is obtained by means of a second feedback loop between the preamplifier output and the common base transistor of the input cascode. The input transistor of the preamplifier is a Junction Field Transistor (JFET) with the gate-source junction forward biased. The detector leakage current flows into this junction. This invention is concerned with a new circuit configuration for a charge sensitive preamplifier and a novel use of the input Field Effect Transistor of the CSP itself. In particular this invention, in addition to eliminating the feedback resistor, eliminates the need for external devices between the detector and the preamplifier, and it eliminates the need for external circuitry to sense the output voltage and reset the CSP. Furthermore, the noise level of the novel CSP is very low, comparable with the performance achieved with other solutions. Experimental tests prove that this configuration for the charge sensitive preamplifier permits an excellent noise performance at temperatures including room temperature. An equivalent noise charge of less than 20 electrons r.m.s. has been measured at room temperature by using a commercial JFET as input device of the preamplifier. 6 figs.

Bertuccio, G.; Rehak, P.; Xi, D.

1994-09-13T23:59:59.000Z

273

Low voltage amplifier architecture for high speed switched capacitor circuits  

E-Print Network [OSTI]

This work concentrates on circuit realization of high speed and low voltage switched capacitor circuits, with emphasis on the operational transconductance amplifier (OTA). An overview of switched capacitor circuits is given. Speed and voltage...

Shankar, Asit

2012-06-07T23:59:59.000Z

274

Anatomy and physiology of neurons supporting the cerebellar circuit  

E-Print Network [OSTI]

firing patterns lead to some interesting questions about the circuitand circuit connections. Do membrane and firing propertiesfiring rate. Another important area of cerebellum circuit

Champion, Kristine Elizabeth

2011-01-01T23:59:59.000Z

275

High Temperature, High Voltage Fully Integrated Gate Driver Circuit  

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

driver circuit, 5-V on- chip voltage regulator, short-circuit protection, undervoltage lockout, bootstrap capacitor, dead time controller and temperature sensor * 0.8-micron,...

276

Digital Circuits Spring 2008--Course 0156-244-001  

E-Print Network [OSTI]

: · Introduction to Logic and Binary Systems Number systems, corresponding math, & codes (BCD, grey codes, etc programmable architectures VHDL (code for converting circuit design into working programmable circuit

Bentley, Sean

277

Department.,of Energy Washington; DC'  

Office of Legacy Management (LM)

,of Energy ,of Energy Washington; DC' 20585 JAN 1 1 1995 / .,, .- L ., The Honorable Thomas Menino ', 1 City Hall Square Boston, Massachusetts 02201 ,'. " p' ifi.. ' . .' b I,' \ Dear.Mayor.Me$ino: DOE's Formerly Util,ized for identification of sites.used by*DOEfs predecessor' agencies, determining, their current radiological condition and, where it has authority, performing remedial action to cleanup sites to meet current radiologicalprotection requirements.~ A conservative set of.technical evaluation guidelines4s used in these investigat~ions' toTassure protection of public health, safety and the .environment. Where DOE does not have authority.for proceeding, the available site information is forwarded to the appropriate Federal or State Agency,. DOE studied the historical records of the former ,Tracerlab, Inc. sitei'and it

278

National Press Club Washington, D.C.  

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

Is the Energy Race our new Is the Energy Race our new "Sputnik" Moment? National Press Club Washington, D.C. 29 November, 2010 1 October 4, 1957, the Soviet Union placed a 184 pound satellite into orbit. "The Soviet Union now has - in the combined category of scientists and engineers - a greater number than the United States. And it is producing graduates in these fields at a much faster rate ... This trend is disturbing. Indeed, according to my scientific advisers, this is for the American people the most critical problem of all. My scientific advisers place this problem above all other immediate tasks of producing missiles, of developing new techniques in the Armed Services. We need scientists in the ten years ahead..." On November 13, 1957, President Eisenhower

279

Dissipative Cryogenic Filters with Zero DC Resistance  

SciTech Connect (OSTI)

The authors designed, implemented and tested cryogenic RF filters with zero DC resistance, based on wires with a superconducting core inside a resistive sheath. The superconducting core allows low frequency currents to pass with negligible dissipation. Signals above the cutoff frequency are dissipated in the resistive part due to their small skin depth. The filters consist of twisted wire pairs shielded with copper tape. Above approximately 1 GHz, the attenuation is exponential in {radical}{omega}, as typical for skin depth based RF filters. By using additional capacitors of 10 nF per line, an attenuation of at least 45 dB above 10 MHz can be obtained. Thus, one single filter stage kept at mixing chamber temperature in a dilution refrigerator is sufficient to attenuate room temperature black body radiation to levels corresponding to 10 mK above about 10 MHz.

Bluhm, Hendrik; Moler, Kathryn A.; /Stanford U., Appl. Phys. Dept

2008-04-22T23:59:59.000Z

280

Equivalent circuits and efficiencies of fuel cells  

Science Journals Connector (OSTI)

By introducing an equivalent thermal potential fixed in terms of the heat of reaction, a thermodynamic equivalent circuit is determined for a fuel cell which yields the correct current-potential curve of the cell for low current by formal application of Ohm's law. The thermodynamic power balance and the thermodynamic efficiency also are given correctly. A linear electrical equivalent circuit is constructed which represents closely the electrical performance of the cell over a wide range of current (not approaching zero). The effect of polarization processes on the electrical power and efficiency is taken into account through a single constant parameter. Introduction of the equivalent thermal potential into the circuit yields a thermodynamic equivalent circuit whose output computed by formal use of Ohm's law coincides exactly with that given by the electrical equivalent circuit. The correct electrical properties, thermodynamic power balance, and thermodynamic efficiency follow directly from the circuit. A general theorem is formulated, independently of the validity of an equivalent circuit, connecting the thermodynamic and electrical efficiencies of a fuel cell. Confirmatory experimental results based on hydrogen—oxygen cells are presented, which underline the large reduction in available power brought about by polarization processes and entropy changes in a fuel cell.

J.J. Gilvarry; J.I. Slaughtert

1963-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

D.C. Water Resources Research Center Annual Technical Report  

E-Print Network [OSTI]

years. We are in negotiation with BenTen Inc., a Japanese water purification system manufacturerD.C. Water Resources Research Center Annual Technical Report FY 2007 D.C. Water Resources Research of the District of Columbia (DC) Water Resources Research Institute (the Institute) for the period of March 1

282

Method of manufacturing Josephson junction integrated circuits  

SciTech Connect (OSTI)

Josephson junction integrated circuits of the current injection type and magnetically controlled type utilize a superconductive layer that forms both Josephson junction electrode for the Josephson junction devices on the integrated circuit as well as a ground plane for the integrated circuit. Large area Josephson junctions are utilized for effecting contact to lower superconductive layers and islands are formed in superconductive layers to provide isolation between the groudplane function and the Josephson junction electrode function as well as to effect crossovers. A superconductor-barrier-superconductor trilayer patterned by local anodization is also utilized with additional layers formed thereover. Methods of manufacturing the embodiments of the invention are disclosed.

Jillie Jr., D. W.; Smith, L. N.

1985-02-12T23:59:59.000Z

283

Stabilization of unstable periodic orbits in dc drives  

E-Print Network [OSTI]

Electric drive using dc shunt motor or permanent magnet dc (PMDC) motor as prime mover exhibits bifurcation and chaos. The characteristics of dc shunt and PMDC motors are linear in nature. These motors are controlled by pulse width modulation (PWM) technique with the help of semiconductor switches. These switches are nonlinear element that introduces nonlinear characteristics in the drive. Any nonlinear system can exhibit bifurcation and chaos. dc shunt or PMDC drives show normal behavior with certain range of parameter values. It is also observed that these drive show chaos for significantly large ranges of parameter values. In this paper we present a method for controlling chaos applicable to dc shunt and PMDC drives. The results of numerical investigation are presented.

Krishnendu Chakrabarty; Urmila Kar

2014-02-22T23:59:59.000Z

284

Definition: DC Resistivity Survey (Dipole-Dipole Array) | Open Energy  

Open Energy Info (EERE)

DC Resistivity Survey (Dipole-Dipole Array) DC Resistivity Survey (Dipole-Dipole Array) Jump to: navigation, search Dictionary.png DC Resistivity Survey (Dipole-Dipole Array) The Dipole-Dipole array is a type of electrode configuration for a Direct-Current Resistivity Survey and is defined by its electrode array geometry.[1] View on Wikipedia Wikipedia Definition References ↑ http://appliedgeophysics.berkeley.edu/dc/EM46.pdf Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:DC_Resistivity_Survey_(Dipole-Dipole_Array)&oldid=596974" Category: Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

285

Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits  

Broader source: Energy.gov [DOE]

Docket EO-05-01: Pursuant to the United States Department of Energy ("DOE") Order No. 202-05-3, issued December 20, 2005 ("DOE Potomac River Order") Pepco hereby files this revised notice of the...

286

Quantum computation beyond the circuit model  

E-Print Network [OSTI]

The quantum circuit model is the most widely used model of quantum computation. It provides both a framework for formulating quantum algorithms and an architecture for the physical construction of quantum computers. However, ...

Jordan, Stephen Paul

2008-01-01T23:59:59.000Z

287

B : Bayesian Circuit Analysis by Michel Wilson  

E-Print Network [OSTI]

://ftp.arl.army.mil/~mike/comphist. #12;B : Bayesian Circuit Analysis by Topology Author: Michel Wilson Student id: Email: michel obtained. esis Committee: Chair: Prof. Dr. Ir. A.J.C. van Gemund, Faculty EEMCS, TU Del University

Kuzmanov, Georgi

288

Yield learning model for integrated circuit package  

E-Print Network [OSTI]

, and has a major influence on product perfo rmance and reliability. Increasing the yield in package assembly influence on product perfo will reduce the effective manufacturing cost during assembly. Hence integrated circuit manufacturers try to improve...

Balasubramaniam, Gaurishankar

2012-06-07T23:59:59.000Z

289

Microelectronic Devices and Circuits - 2006 Electronic Edition  

E-Print Network [OSTI]

Combining semiconductor device physics and modeling with electronic circuit analysis and practice in a single sophomore/junior level microelectronics course, this textbook offers an integrated approach so students can truly ...

Fonstad, Clifton

2006-10-01T23:59:59.000Z

290

Parameterized modeling of multiport passive circuit blocks  

E-Print Network [OSTI]

System level design optimization has recently started drawing the attention of circuit designers. A system level optimizer would search over the entire design space, adjusting the parameters of interest, for optimal ...

Mahmood, Zohaib

2010-01-01T23:59:59.000Z

291

Carbon nanotube synthesis for integrated circuit interconnects  

E-Print Network [OSTI]

Based on their properties, carbon nanotubes (CNTs) have been identified as ideal replacements for copper interconnects in integrated circuits given their higher current density, inertness, and higher resistance to ...

Nessim, Gilbert Daniel

2009-01-01T23:59:59.000Z

292

Analysis of S-Circuit Uncertainty  

E-Print Network [OSTI]

The theory of sensori-computational circuits provides a capable framework for the description and optimization of robotic systems, including on-line optimizations. This theory, however, is inadequate in that it does not account for uncertainty in a...

Ahmed, Taahir

2011-08-08T23:59:59.000Z

293

Analysis and Design of Resilient VLSI Circuits  

E-Print Network [OSTI]

and design techniques with the goal of realizing VLSI circuits which are tolerant to radiation particle strikes and process variations. This dissertation consists of two parts. The first part proposes four analysis and two design approaches to address...

Garg, Rajesh

2010-07-14T23:59:59.000Z

294

Analog circuit for controlling acoustic transducer arrays  

DOE Patents [OSTI]

A simplified ananlog circuit is presented for controlling electromechanical transducer pairs in an acoustic telemetry system. The analog circuit of this invention comprises a single electrical resistor which replaces all of the digital components in a known digital circuit. In accordance with this invention, a first transducer in a transducer pair of array is driven in series with the resistor. The voltage drop across this resistor is then amplified and used to drive the second transducer. The voltage drop across the resistor is proportional and in phase with the current to the transducer. This current is approximately 90 degrees out of phase with the driving voltage to the transducer. This phase shift replaces the digital delay required by the digital control circuit of the prior art.

Drumheller, Douglas S. (Cedar Crest, NM)

1991-01-01T23:59:59.000Z

295

Equivalent Circuit Modeling of Hysteresis Motors  

SciTech Connect (OSTI)

We performed a literature review and found that many equivalent circuit models of hysteresis motors in use today are incorrect. The model by Miyairi and Kataoka (1965) is the correct one. We extended the model by transforming it to quadrature coordinates, amenable to circuit or digital simulation. 'Hunting' is an oscillatory phenomenon often observed in hysteresis motors. While several works have attempted to model the phenomenon with some partial success, we present a new complete model that predicts hunting from first principles.

Nitao, J J; Scharlemann, E T; Kirkendall, B A

2009-08-31T23:59:59.000Z

296

Investigation of dielectric overlay microstrip circuits  

E-Print Network [OSTI]

INVESTIGATION OF DIELECTRIC OVERLAY MICROSTRIP CIRCUITS A Thesis by JAMES LOUIS KLEIN Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1988 Major... Subject: Electrical Engineering INVESTIGATION OF DIELECTRIC OVERLAY MICRO STRIP CIRCUITS A Thesis by JAMES LOUIS KLEIN Approved as to style and content by: Kai Chang Robert D. Nevels (Member) Krzysztof A. Michalski (Member) Mark H. Weichold...

Klein, James Louis

1988-01-01T23:59:59.000Z

297

IEEE Communications Magazine February 20022 Distributed Integrated Circuits  

E-Print Network [OSTI]

Approach to High-Frequency Design 0163-6804/02/$17.00 © 2002 IEEE ABSTRACT Distributed integrated circuits are presented as a methodology to design high-frequency commu- nication building blocks. Distributed circuits be implemented as integrated circuits. The integrated circuit design process is then divided further by defining

Hajimiri, Ali

298

Differential transimpedance amplifier circuit for correlated differential amplification  

DOE Patents [OSTI]

A differential transimpedance amplifier circuit for correlated differential amplification. The amplifier circuit increase electronic signal-to-noise ratios in charge detection circuits designed for the detection of very small quantities of electrical charge and/or very weak electromagnetic waves. A differential, integrating capacitive transimpedance amplifier integrated circuit comprising capacitor feedback loops performs time-correlated subtraction of noise.

Gresham, Christopher A. (Albuquerque, NM); Denton, M. Bonner (Tucson, AZ); Sperline, Roger P. (Tucson, AZ)

2008-07-22T23:59:59.000Z

299

Parallel algorithm strategies for circuit simulation.  

SciTech Connect (OSTI)

Circuit simulation tools (e.g., SPICE) have become invaluable in the development and design of electronic circuits. However, they have been pushed to their performance limits in addressing circuit design challenges that come from the technology drivers of smaller feature scales and higher integration. Improving the performance of circuit simulation tools through exploiting new opportunities in widely-available multi-processor architectures is a logical next step. Unfortunately, not all traditional simulation applications are inherently parallel, and quickly adapting mature application codes (even codes designed to parallel applications) to new parallel paradigms can be prohibitively difficult. In general, performance is influenced by many choices: hardware platform, runtime environment, languages and compilers used, algorithm choice and implementation, and more. In this complicated environment, the use of mini-applications small self-contained proxies for real applications is an excellent approach for rapidly exploring the parameter space of all these choices. In this report we present a multi-core performance study of Xyce, a transistor-level circuit simulation tool, and describe the future development of a mini-application for circuit simulation.

Thornquist, Heidi K.; Schiek, Richard Louis; Keiter, Eric Richard

2010-01-01T23:59:59.000Z

300

Counterrotating brushless dc permanent magnet motor  

SciTech Connect (OSTI)

An brushless DC permanent magnet motor is provided for driving an autonomous underwater vehicle. In one embodiment, the motor comprises four substantially flat stators disposed in stacked relationship, with pairs of the stators being axially spaced and each of the stators comprising a tape-wound stator coil; and a first and second substantially flat rotors disposed between the spaced pairs of stators. Each of the rotors includes an annular array of permanent magnets embedded therein. A first shaft is connected to the first rotor and a second, concentric shaft is connected to the second rotor, and drive unit causes rotation of the two shafts in opposite directions. The second shaft comprises a hollow tube having a central bore therein in which the first shaft is disposed. Two different sets of bearings support the first and second shAfts. In another embodiment, the motor comprises two ironless stators and pairs and rotors mounted no opposite sides of the stators and driven by counterrotating shafts.

Hawsey, R.A.; Bailey, J.M.

1990-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

Counterrotating brushless dc permanent magnet motor  

SciTech Connect (OSTI)

An brushless DC permanent magnet motor is provided for driving an autonomous underwater vehicle. In one embodiment, the motor comprises four substantially flat stators disposed in stacked relationship, with pairs of the stators being axially spaced and each of the stators comprising a tape-wound stator coil; and a first and second substantially flat rotors disposed between the spaced pairs of stators. Each of the rotors includes an annular array of permanent magnets embedded therein. A first shaft is connected to the first rotor and a second, concentric shaft is connected to the second rotor, and drive unit causes rotation of the two shafts in opposite directions. The second shaft comprises a hollow tube having a central bore therein in which the first shaft is disposed. Two different sets of bearings support the first and second shAfts. In another embodiment, the motor comprises two ironless stators and pairs and rotors mounted no opposite sides of the stators and driven by counterrotating shafts.

Hawsey, R.A.; Bailey, J.M.

1990-01-01T23:59:59.000Z

302

We Have a Winner - DC High School Regional Science Bowl Competition...  

Office of Environmental Management (EM)

We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday...

303

DC Resistivity Survey (Dipole-Dipole Array) | Open Energy Information  

Open Energy Info (EERE)

DC Resistivity Survey (Dipole-Dipole Array) DC Resistivity Survey (Dipole-Dipole Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Dipole-Dipole Array) Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Profiling Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

304

DC Hazardous Waste Management (District of Columbia) | Department of Energy  

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

DC Hazardous Waste Management (District of Columbia) DC Hazardous Waste Management (District of Columbia) DC Hazardous Waste Management (District of Columbia) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Program Info State District of Columbia Program Type Environmental Regulations Provider District Department of the Environment This regulation regulates the generation, storage, transportation, treatment, and disposal of hazardous waste, and wherever feasible, reduces

305

Implementing the DC Mode in Cosmological Simulations with Supercomoving Variables  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

As emphasized by previous studies, proper treatment of the density fluctuation on the fundamental scale of a cosmological simulation volume - the 'DC mode' - is critical for accurate modeling of spatial correlations on scales ~> 10% of simulation box size. We provide further illustration of the effects of the DC mode on the abundance of halos in small boxes and show that it is straightforward to incorporate this mode in cosmological codes that use the 'supercomoving' variables. The equations governing evolution of dark matter and baryons recast with these variables are particularly simple and include the expansion factor, and hence the effect of the DC mode, explicitly only in the Poisson equation.

Gnedin, Nickolay Y.; Kravtsov, Andrey V.; Rudd, Douglas H.

2011-06-02T23:59:59.000Z

306

Data:D019150c-035a-4542-8dc3-5b49a27fe554 | Open Energy Information  

Open Energy Info (EERE)

9150c-035a-4542-8dc3-5b49a27fe554 9150c-035a-4542-8dc3-5b49a27fe554 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Stillwater Utilities Authority Effective date: 2012/01/01 End date if known: Rate name: ELECTRIC RATE OUTDOOR SECURITY LIGHTING MV 100 W Sector: Lighting Description: This lighting fixture is no longer available for new installations. The Fixed Monthly Charge applies to Existing Distribution on Wood Poles. Additional Charges: If an extension of SEU's secondary circuit and a pole was necessary for the area security light, the monthly rate below shall be increased for each security light as follows:

307

Data:C065f3c8-dc3d-439c-b2c9-a36550974098 | Open Energy Information  

Open Energy Info (EERE)

c8-dc3d-439c-b2c9-a36550974098 c8-dc3d-439c-b2c9-a36550974098 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Delta Electric Power Assn Effective date: 2008/07/01 End date if known: Rate name: 13 Street Lighting High Pressure Sodium 400 Watt Sector: Lighting Description: Available to governmental entities for lighting public streets, highways, alleys, parks, rest areas, playgrounds, and other public areas with controlled lighting provided by the Association. Service is from dusk to dawn. All street lighting equipment including lamps, fixtures, controls, and the necessary street lighting circuits, transformers, and additional guys and fittings will be owner, maintained, and operated by the Association. Lamp replacement will be by the Association.

308

Lazzaro and Mead --Circuit Models of Sensory Transduction in the Cochlea CIRCUIT MODELS OF SENSORY TRANSDUCTION  

E-Print Network [OSTI]

Lazzaro and Mead -- Circuit Models of Sensory Transduction in the Cochlea CIRCUIT MODELS OF SENSORY nerve. Humans can process sound input over a 120-dB dynamic range, yet the firing rate of an auditory of the order of ten microseconds, yet an auditory-nerve fiber can fire at most once per mil- lisecond. Using

Lazzaro, John

309

DOE - Office of Legacy Management -- National Bureau of Standards - DC 01  

Office of Legacy Management (LM)

Bureau of Standards - DC Bureau of Standards - DC 01 FUSRAP Considered Sites Site: NATIONAL BUREAU OF STANDARDS (DC.01) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Van Ness Street , Washington , D.C. DC.01-1 Evaluation Year: 1987 DC.01-2 DC.01-3 Site Operations: Performed quality analysis lab work for the MED during the 1940s; decontamination efforts were completed in 1952 and the building was demolished in 1976 DC.01-3 Site Disposition: Eliminated - Radiation levels Below criteria DC.01-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Radium DC.01-4 Radiological Survey(s): Yes DC.01-1 Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to NATIONAL BUREAU OF STANDARDS

310

Washington DC Reliability Requirements and the Need to Operate Mirant's  

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

Washington DC Reliability Requirements and the Need to Operate Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Pursuant to Docket No. EO-05-01: Oak Ridge National Laboratory provided an analysis of the Mirant Potomac River Generation Station in 2005 and discussed the reliability requirements of the local area and the potential impacts on reliability of changing operation of the Potomac River Generating Station in this paper. Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability.pdf

311

Categorical Exclusion Determinations: Washington, D.C. | Department of  

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

Washington, D.C. Washington, D.C. Categorical Exclusion Determinations: Washington, D.C. Location Categorical Exclusion Determinations issued for actions in Washington, D.C. DOCUMENTS AVAILABLE FOR DOWNLOAD June 11, 2013 CX-010460: Categorical Exclusion Determination Novel Low Cost Environmentally Friendly Synthetic Approaches toward Core-Shell Structured Micro CX(s) Applied: B3.6 Date: 06/11/2013 Location(s): District of Columbia Offices(s): National Energy Technology Laboratory March 28, 2013 CX-010567: Categorical Exclusion Determination Lawrence Berkeley National Laboratory - Rapid Automated Modeling and Simulation of Existing Buildings for Energy Efficiency CX(s) Applied: B3.6 Date: 02/28/2013 Location(s): California, District of Columbia Offices(s): Advanced Research Projects Agency-Energy

312

Electric Compressor With High-Speed Brushless DC Motor  

Science Journals Connector (OSTI)

Moving Magnet Technologies (MMT) from Besançon in France has developed a highly efficient brushless DC motor that is especially suitable for use in ... The following report presents technical details of the electric

Dr.-Ing. Stephan Biwersi; Dipl.-Ing. Stephan Tavernier; M.Sc. Samuel Equoy

2012-12-01T23:59:59.000Z

313

A Multilevel Voltage-Source Inverter with Separate DC Sources  

Office of Scientific and Technical Information (OSTI)

directly to a 13 kV power line. The corresponding parameters have been mentioned in Section IILC. The capacitances for the ten FBI units' dc capacitors are C,, C2, -,...

314

DC Resistivity Survey (Schlumberger Array) At Coso Geothermal Area (1977) |  

Open Energy Info (EERE)

DC Resistivity Survey (Schlumberger Array) At Coso DC Resistivity Survey (Schlumberger Array) At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique DC Resistivity Survey (Schlumberger Array) Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis To investigate electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area Notes 18 USGS Schlumberger soundings and 6 Schlumberger soundings by Furgerson (1973) were plotted and automatically processed and interpreted References Jackson, D.B. ODonnell, J.E.; Gregory, D. I. (1 January 1977) Schlumberger soundings, audio-magnetotelluric soundings and telluric mapping in and around the Coso Range, California Retrieved from "http://en.openei.org/w/index.php?title=DC_Resistivity_Survey_(Schlumberger_Array)_At_Coso_Geothermal_Area_(1977)&oldid=591389

315

Lockout device for high voltage circuit breaker  

SciTech Connect (OSTI)

An improved lockout assembly is provided for a circuit breaker to lock the switch handle into a selected switch position. The lockout assembly includes two main elements, each having a respective foot for engaging a portion of the upper housing wall of the circuit breaker. The first foot is inserted into a groove in the upper housing wall, and the second foot is inserted into an adjacent aperture (e.g., a slot) in the upper housing wall. The first foot is slid under and into engagement with a first portion, and the second foot is slid under and into engagement with a second portion of the upper housing wall. At the same time the respective two feet are placed in engagement with the respective portions of the upper housing wall, two holes, one on each of the respective two main elements of the assembly, are placed in registration; and a locking device, such as a special scissors equipped with a padlock, is installed through the registered holes to secure the lockout assembly on the circuit breaker. When the lockout assembly of the invention is secured on the circuit breaker, the switch handle of the circuit breaker is locked into the selected switch position and prevented from being switched to another switch position.

Kozlowski, L.J.; Shirey, L.A.

1993-01-26T23:59:59.000Z

316

Lockout device for high voltage circuit breaker  

DOE Patents [OSTI]

An improved lockout assembly is provided for a circuit breaker to lock the switch handle into a selected switch position. The lockout assembly includes two main elements, each having a respective foot for engaging a portion of the upper housing wall of the circuit breaker. The first foot is inserted into a groove in the upper housing wall, and the second foot is inserted into an adjacent aperture (e.g., a slot) in the upper housing wall. The first foot is slid under and into engagement with a first portion, and the second foot is slid under and into engagement with a second portion of the upper housing wall. At the same time the repsective two feet are placed in engagement with the respective portions of the upper housing wall, two holes, one on each of the respective two main elements of the assembly, are placed in registration; and a locking device, such as a special scissors equipped with a padlock, is installed through the registered holes to secure the lockout assembly on the circuit breaker. When the lockout assembly of the invention is secured on the circuit breaker, the switch handle of the circuit breaker is locked into the selected switch position and prevented from being switched to another switch position.

Kozlowski, Lawrence J. (New Kensington, PA); Shirey, Lawrence A. (North Huntingdon, PA)

1993-01-01T23:59:59.000Z

317

Lookout device for high voltage circuit breaker  

SciTech Connect (OSTI)

An improved lockout assembly is provided for a circuit breaker to lock the switch handle into a selected switch position. The lockout assembly includes two main elements, each having a respective foot for engaging a portion of the upper housing wall of the circuit breaker. The first foot is inserted into a groove in the upper housing wall, and the second foot is inserted into an adjacent aperture (e.g., a slot) in the upper housing wall. The first foot is slid under and into engagement with a first portion, and the second foot is slid under and into engagement with a second portion of the upper housing wall. At the same time the respective two feet are placed in engagement with the respective portions of the upper housing wall, two holes, one on each of the respective two main elements of the assembly, are placed in registration; and a locking device, such as a special scissors equipped with a padlock, is installed through the registered holes to secure the lockout assembly on the circuit breaker. When the lockout assembly of the invention is secured on the circuit breaker, the switch handle of the circuit breaker is locked into the selected switch position and prevented from being switched to another switch position.

Kozlowski, L.J.; Shirey, L.A.

1991-12-31T23:59:59.000Z

318

Dual circuit embossed sheet heat transfer panel  

DOE Patents [OSTI]

A heat transfer panel provides redundant cooling for fusion reactors or the like environment requiring low-mass construction. Redundant cooling is provided by two independent cooling circuits, each circuit consisting of a series of channels joined to inlet and outlet headers. The panel comprises a welded joinder of two full-size and two much smaller partial-size sheets. The first full-size sheet is embossed to form first portions of channels for the first and second circuits, as well as a header for the first circuit. The second full-sized sheet is then laid over and welded to the first full-size sheet. The first and second partial-size sheets are then overlaid on separate portions of the second full-sized sheet, and are welded thereto. The first and second partial-sized sheets are embossed to form inlet and outlet headers, which communicate with channels of the second circuit through apertures formed in the second full-sized sheet. 6 figs.

Morgan, G.D.

1984-02-21T23:59:59.000Z

319

Modeling and Simulation of Series DC Motors in Electric Car  

Science Journals Connector (OSTI)

Abstract The objective of this paper is assessing use of series DC motor in electric car with its rotation speed controller, and evaluating its performances when different running cases of electric car with different loads. The mathematical equations model of series DC motor and electronic inverter in dynamic state with reference frame d – q were considered. Computer model of these equations was implemented using MATLAB/SIMPOWER facilities obtaining a complete model for motor and controller. Series DC motor is considered and its parameters were used for simulation. The electronic controller operates based on PWM control technique. Simulation of series DC motor performances was conducted within presumptions of changing car load and different resistant torques. Changing loads was realised changing number of passengers when electric car is running on normal streets, when running on streets with slope, when car is accelerate to reach a stead speed and when car is changing speed rigidly and suddenly running on country road having some holes and small slopes. Some conclusions and remarks about performances and behaviour of series DC motor were concluded. The simulated series DC motor was tested and mounted experimentally in a small truck car in Faculty of Mechanical & Electrical Engineering at Damascus University.

Zeina Bitar; Samih Al Jabi; Imad Khamis

2014-01-01T23:59:59.000Z

320

Triple effect absorption chiller utilizing two refrigeration circuits  

SciTech Connect (OSTI)

This patent describes a heat absorption method for an absorption chiller. It comprises: providing a firs absorption system circuit for operation within a first temperature range, providing a second absorption system circuit for operation within a second temperature range; heat exchanging refrigerant and absorber solution; thermal communication with an external heat load. This patent describes a heat absorption apparatus for use as an absorption chiller. It includes: a first absorption system circuit for operation within a first temperature range; a second absorption system circuit for operation within a second temperature range which has a lower maximum temperature relative to the first temperature range; the first circuit having generator means, condenser means, evaporator means, and absorber means operatively connected together; the second circuit having generator means condenser means, evaporator means, and absorber means operative connected together; and the first circuit condenser means and the first circuit absorber means being in heat exchange communication with the second circuit generator means.

DeVault, R.C.

1988-03-22T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

Data:Eec988f9-dc0d-45ef-9789-a7781dc1934b | Open Energy Information  

Open Energy Info (EERE)

f9-dc0d-45ef-9789-a7781dc1934b f9-dc0d-45ef-9789-a7781dc1934b No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: El Paso Electric Co (New Mexico) Effective date: 2010/01/01 End date if known: Rate name: LGS (Large General Service Secondary) Sector: Commercial Description: This rate is available to all Customers for lighting,power, and heating service. All service will be taken at one point of delivery designated by the Company and at one of the Company's standard types of service. Service under this rate shall be limited to Customers whose expected monthly demand will exceed 800 kilowatts (kW).

322

Radiation-hardened transistor and integrated circuit  

DOE Patents [OSTI]

A composite transistor is disclosed for use in radiation hardening a CMOS IC formed on an SOI or bulk semiconductor substrate. The composite transistor has a circuit transistor and a blocking transistor connected in series with a common gate connection. A body terminal of the blocking transistor is connected only to a source terminal thereof, and to no other connection point. The blocking transistor acts to prevent a single-event transient (SET) occurring in the circuit transistor from being coupled outside the composite transistor. Similarly, when a SET occurs in the blocking transistor, the circuit transistor prevents the SET from being coupled outside the composite transistor. N-type and P-type composite transistors can be used for each and every transistor in the CMOS IC to radiation harden the IC, and can be used to form inverters and transmission gates which are the building blocks of CMOS ICs.

Ma, Kwok K. (Albuquerque, NM)

2007-11-20T23:59:59.000Z

323

Package for integrated optic circuit and method  

DOE Patents [OSTI]

A structure and method for packaging an integrated optic circuit. The package comprises a first wall having a plurality of microlenses formed therein to establish channels of optical communication with an integrated optic circuit within the package. A first registration pattern is provided on an inside surface of one of the walls of the package for alignment and attachment of the integrated optic circuit. The package in one embodiment may further comprise a fiber holder for aligning and attaching a plurality of optical fibers to the package and extending the channels of optical communication to the fibers outside the package. In another embodiment, a fiber holder may be used to hold the fibers and align the fibers to the package. The fiber holder may be detachably connected to the package.

Kravitz, Stanley H. (26 Aspen Rd., Placitas, NM 87043); Hadley, G. Ronald (6012 Annapolis NE., Albuquerque, NM 87111); Warren, Mial E. (3825 Mary Ellen NE., Albuquerque, NM 87111); Carson, Richard F. (1036 Jewel Pl. NE., Albuquerque, NM 87123); Armendariz, Marcelino G. (1023 Oro Real NE., Albuquerque, NM 87123)

1998-01-01T23:59:59.000Z

324

Circuits in the Sun: Solar Panel Physics  

Science Journals Connector (OSTI)

Typical commercial solar panels consist of approximately 60 individual photovoltaic cells connected in series. Since the usual Kirchhoff rules apply the current is uniform throughout the circuit while the electric potential of the individual devices is cumulative. Hence a solar panel is a good analog of a simple resistive series circuit except that the devices generate (rather than burn!) electrical power. For example in order to sustain the current flow each device must generate the requisite current. As a result the least efficient device limits the current throughout. Photovoltaic cells also have a more complicated current-voltage (I–V) characteristic which determines the optimal load for power extraction. These considerations among others make the solar panel an excellent platform for exploring the physics of electric circuits.

Tim Gfroerer

2013-01-01T23:59:59.000Z

325

Package for integrated optic circuit and method  

DOE Patents [OSTI]

A structure and method are disclosed for packaging an integrated optic circuit. The package comprises a first wall having a plurality of microlenses formed therein to establish channels of optical communication with an integrated optic circuit within the package. A first registration pattern is provided on an inside surface of one of the walls of the package for alignment and attachment of the integrated optic circuit. The package in one embodiment may further comprise a fiber holder for aligning and attaching a plurality of optical fibers to the package and extending the channels of optical communication to the fibers outside the package. In another embodiment, a fiber holder may be used to hold the fibers and align the fibers to the package. The fiber holder may be detachably connected to the package. 6 figs.

Kravitz, S.H.; Hadley, G.R.; Warren, M.E.; Carson, R.F.; Armendariz, M.G.

1998-08-04T23:59:59.000Z

326

Triple effect absorption chiller utilizing two refrigeration circuits  

SciTech Connect (OSTI)

A heat absorption method for an absorption chiller is described comprising: (a) providing a first absorption system circuit for operation within a first temperature range; (b) providing a second absorption system circuit for operation within a second temperature range which has a lower maximum temperature than the first temperature range; (c) heat exchanging refrigerant and absorber solution from the first circuit condenser and absorber with absorption solution from the generator of the second circuit; and (d) the evaporator of the first circuit and the evaporator of the second circuit both being disposed in thermal communication with an external heat load to withdraw heat from the heat load.

De Vault, R.C.

1988-03-22T23:59:59.000Z

327

Hybrid high direct current circuit interrupter  

DOE Patents [OSTI]

A device and a method are disclosed for interrupting very high direct currents (greater than 100,000 amperes) and simultaneously blocking high voltages (greater than 600 volts). The device utilizes a mechanical switch to carry very high currents continuously with low loss and a silicon controlled rectifier (SCR) to bypass the current around the mechanical switch while its contacts are separating. A commutation circuit, connected in parallel with the SCR, turns off the SCR by utilizing a resonant circuit to divert the SCR current after the switch opens. 7 figs.

Rockot, J.H.; Mikesell, H.E.; Jha, K.N.

1998-08-11T23:59:59.000Z

328

Hybrid high direct current circuit interrupter  

DOE Patents [OSTI]

A device and a method for interrupting very high direct currents (greater than 100,000 amperes) and simultaneously blocking high voltages (greater than 600 volts). The device utilizes a mechanical switch to carry very high currents continuously with low loss and a silicon controlled rectifier (SCR) to bypass the current around the mechanical switch while its contacts are separating. A commutation circuit, connected in parallel with the SCR, turns off the SCR by utilizing a resonant circuit to divert the SCR current after the switch opens.

Rockot, Joseph H. (N. Huntingdon, PA); Mikesell, Harvey E. (McMurray, PA); Jha, Kamal N. (Bethel Park, PA)

1998-01-01T23:59:59.000Z

329

Quantum Electric Circuits Analogous to Ballistic Conductors  

E-Print Network [OSTI]

The conductance steps in a constricted two-dimensional electron gas and the minimum conductivity in graphene are related to a new uncertainty relation between electric charge and conductance in a quantized electric circuit that mimics the electric transport in mesoscopic systems. This uncertainty relation makes specific use of the discreteness of electric charge. Quantum electric circuits analogous to both constricted two-dimensional electron gas and graphene are introduced. In the latter case a new insight into the origin of minimum conductivity is obtained.

Daniela Dragoman

2007-11-28T23:59:59.000Z

330

Kirchhoff voltage law corrected for radiating circuits  

E-Print Network [OSTI]

When a circular loop composed by a RLC is put to oscillate, the oscillation will eventually vanish in an exponentially decaying current, even considering superconducting wires, due to the emission of electric and magnetic dipole radiation. In this work we propose a modification on the Kirchhoff voltage law by adding the radiative contributions to the energy loss as an effective resistance, whose value is relatively small when compared to typical resistance value, but fundamental to describe correctly real circuits. We have also analysed the change in the pattern of the radiation spectra emitted by the circuit as we vary both the effective and electrical resistance.

Lara, Vitor

2014-01-01T23:59:59.000Z

331

Q&A: Kristen Psaki of WeatherizeDC | Department of Energy  

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

Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC April 15, 2010 - 3:45pm Addthis Roughly 20 percent of carbon emissions come from inefficient homes. The DC Project says it has found a way to mitigate emissions and create jobs, a winning combination. WeatherizeDC is the non-profit's effort to use a community engagement model to help DC residents find green jobs and live a more energy efficient lifestyle. Energy Empowers recently spoke with DC Project co-founder and creative director Kristen Psaki about WeatherizeDC's approach to climate change. WeatherizeDC is a nonprofit community engagement program. What's the background of it, the story of how and why it was founded? The DC Project was founded over a year ago in January 2009.

332

Q&A: Kristen Psaki of WeatherizeDC | Department of Energy  

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

Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC April 15, 2010 - 3:45pm Addthis Roughly 20 percent of carbon emissions come from inefficient homes. The DC Project says it has found a way to mitigate emissions and create jobs, a winning combination. WeatherizeDC is the non-profit's effort to use a community engagement model to help DC residents find green jobs and live a more energy efficient lifestyle. Energy Empowers recently spoke with DC Project co-founder and creative director Kristen Psaki about WeatherizeDC's approach to climate change. WeatherizeDC is a nonprofit community engagement program. What's the background of it, the story of how and why it was founded? The DC Project was founded over a year ago in January 2009.

333

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

SciTech Connect (OSTI)

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

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

1995-08-01T23:59:59.000Z

334

Quantum effects in nanoscale Josephson junction circuits  

E-Print Network [OSTI]

Quantum effects in nanoscale Josephson junction circuits SILVIA CORLEVI Doctoral Thesis Stockholm Josephson junction arrays with SQUID geometry. TRITA FYS 2006:31 ISSN 0280-316X ISRN KTH/FYS/­06:31­SE ISBN study on single-charge effects in nanoscale Josephson junctions and Cooper pair transistors (CPTs

Haviland, David

335

Simulating weak localization using superconducting quantum circuits  

E-Print Network [OSTI]

Understanding complex quantum matter presents a central challenge in condensed matter physics. The difficulty lies in the exponential scaling of the Hilbert space with the system size, making solutions intractable for both analytical and conventional numerical methods. As originally envisioned by Richard Feynman, this class of problems can be tackled using controllable quantum simulators. Despite many efforts, building an quantum emulator capable of solving generic quantum problems remains an outstanding challenge, as this involves controlling a large number of quantum elements. Here, employing a multi-element superconducting quantum circuit and manipulating a single microwave photon, we demonstrate that we can simulate the weak localization phenomenon observed in mesoscopic systems. By engineering the control sequence in our emulator circuit, we are also able to reproduce the well-known temperature dependence of weak localization. Furthermore, we can use our circuit to continuously tune the level of disorder, a parameter that is not readily accessible in mesoscopic systems. By demonstrating a high level of control and complexity, our experiment shows the potential for superconducting quantum circuits to realize scalable quantum simulators.

Yu Chen; P. Roushan; D. Sank; C. Neill; Erik Lucero; Matteo Mariantoni; R. Barends; B. Chiaro; J. Kelly; A. Megrant; J. Y. Mutus; P. J. J. O'Malley; A. Vainsencher; J. Wenner; T. C. White; Yi Yin; A. N. Cleland; John M. Martinis

2014-03-26T23:59:59.000Z

336

Automatic Stability Checking for Large Analog Circuits  

E-Print Network [OSTI]

breakpoints. However, this method suffers from extremely high time and memory complexity and thus cannot be scaled to very large analog circuits. In this research work, we first take an in-depth look at the loop finder algorithm so as to identify certain key...

Mukherjee, Parijat 1985-

2010-12-06T23:59:59.000Z

337

Computing with neural circuits: a model  

Science Journals Connector (OSTI)

...decision networks that used a system offeed-forward synap-tic connectivity and a simple...perceptron-like networks, which emphasized feed-forward connectivity. Graded-response neurons...A-B converter and TSP circuit, were-"forward-engineered." Given the optimization...

JJ Hopfield; DW Tank

1986-08-08T23:59:59.000Z

338

MODELING AND VISUALIZATION OF SYNTHETIC GENETIC CIRCUITS  

E-Print Network [OSTI]

. INTRODUCTION In 1977 a group of researchers managed to modify the DNA of the E. coli bacteria and were able to make it to produce the human hormone somatostatin [1]. Since that time genetic engineers have leveraged on Visualization of Genetic Circuits will give an overview on the use and effectiveness of the new visualization

Myers, Chris J.

339

Disentangling Mental Disorders : from Genes to Circuits  

E-Print Network [OSTI]

Summer Program 2014 Disentangling Mental Disorders : from Genes to Circuits RIKEN Brain Science Application : http://www.brain.riken.jp/en/summer/ Inquiries : info.summer@brain.riken.jp RIKEN Brain Science July 15-July 22, 2014 Summer Program 2014 Summer Program 2014 RIKEN Brain Science InstituteRIKEN Brain

Kazama, Hokto

340

CONCEPTS FOR TEACHING OPTOELECTRONIC CIRCUITS AND SYSTEMS  

E-Print Network [OSTI]

CONCEPTS FOR TEACHING OPTOELECTRONIC CIRCUITS AND SYSTEMS Smail TEDJINI, Benoit PANNETIER, Laurent.Lastname@esisar.inpg.fr Keywords : Optoelectronic devices, optical signals, communication systems, modeling, simulation, CAD and design of optical communication and optoelectronic systems is now necessary for the engineers

Boyer, Edmond

Note: This page contains sample records for the topic "dc circuit outage" 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

Three-dimensional Integrated Circuit Design  

Science Journals Connector (OSTI)

With vastly increased complexity and functionality in the "nanometer era" (i.e. hundreds of millions of transistors on one chip), increasing the performance of integrated circuits has become a challenging task. This is due primarily to the inevitable ... Keywords: Computer Architecture, Computer Engineering, Computer Science

Vasilis F. Pavlidis; Eby G. Friedman

2008-09-01T23:59:59.000Z

342

Quantum computer of wire circuit architecture  

E-Print Network [OSTI]

First solid state quantum computer was built using transmons (cooper pair boxes). The operation of the computer is limited because of using a number of the rigit cooper boxes working with fixed frequency at temperatures of superconducting material. Here, we propose a novel architecture of quantum computer based on a flexible wire circuit of many coupled quantum nodes containing controlled atomic (molecular) ensembles. We demonstrate wide opportunities of the proposed computer. Firstly, we reveal a perfect storage of external photon qubits to multi-mode quantum memory node and demonstrate a reversible exchange of the qubits between any arbitrary nodes. We found optimal parameters of atoms in the circuit and self quantum modes for quantum processing. The predicted perfect storage has been observed experimentally for microwave radiation on the lithium phthalocyaninate molecule ensemble. Then also, for the first time we show a realization of the efficient basic two-qubit gate with direct coupling of two arbitrary nodes by using appropriate atomic frequency shifts in the circuit nodes. Proposed two-qubit gate runs with a speed drastically accelerated proportionally to the number of atoms in the node. The direct coupling and accelerated two-qubit gate can be realized for large number of the circuit nodes. Finally, we describe two and three-dimensional scalable architectures that pave the road to construction of universal multi-qubit quantum computer operating at room temperatures.

S. A. Moiseev; F. F. Gubaidullin; S. N. Andrianov

2010-01-07T23:59:59.000Z

343

Parallel and Distributed Multi-Algorithm Circuit Simulation  

E-Print Network [OSTI]

With the proliferation of parallel computing, parallel computer-aided design (CAD) has received significant research interests. Transient transistor-level circuit simulation plays an important role in digital/analog circuit design and verification...

Dai, Ruicheng

2012-10-19T23:59:59.000Z

344

Parallel Algorithms for Time and Frequency Domain Circuit Simulation  

E-Print Network [OSTI]

solution to circuit simulation besides the known application of distributed-memory clustered computing platforms, which provides abundant hardware computing resources. This research addresses the limitations of traditional serial circuit simulations...

Dong, Wei

2010-10-12T23:59:59.000Z

345

General equivalent circuit of batteries and fuel cells  

Science Journals Connector (OSTI)

A general electrical circuit is described whose properties are analogous to those of fuel cells and batteries. It is shown how this equivalent circuit ... in the electrolyte on the output voltage of fuel cells an...

R. A. Huggins

1999-01-01T23:59:59.000Z

346

Constraint satisfaction modules : a methodology for analog circuit design  

E-Print Network [OSTI]

This dissertation describes a methodology for solving convex constraint problems using analog circuits. It demonstrates how this methodology can be used to design circuits that solve function-fitting problems through ...

Mitros, Piotr, 1979-

2007-01-01T23:59:59.000Z

347

Micro Electret Energy Harvesting Device with Analogue Impedance Conversion Circuit  

E-Print Network [OSTI]

Micro Electret Energy Harvesting Device with Analogue Impedance Conversion Circuit Yuji Suzuki1 using a low-power-consumption impedance conversion circuit. Key words: Energy harvesting, Electret, CYTOP, Parylene spring, Impedance conversion 1. INTRODUCTION Energy harvesting from environmental

Kasagi, Nobuhide

348

Circuit and bond polytopes on series-parallel graphs$  

E-Print Network [OSTI]

Jul 10, 2014 ... In the literature, a circuit is sometimes called simple cycle. ... of the circuits of series-parallel graphs, combined with a theorem of Balas [2, 3].

2014-07-10T23:59:59.000Z

349

Trust in analog : analog circuit techniques for reducing the risk of malicious circuits and software  

E-Print Network [OSTI]

Malicious circuits and software present a significant security risk, especially in control applications. This work is concerned with increasing the trustworthiness of control circuitry by reducing its complexity. The ...

Kuznetsov, Eugene

2011-01-01T23:59:59.000Z

350

Improving the dynamic performance of a complex AC/DC system by HVDC control modifications  

SciTech Connect (OSTI)

The power system of Hydro-Quebec has a peak load of approximately 27 GW. The great distance between the production sites and the load centers introduces stability limitations, which is the reason why the Quebec grid cannot be economically synchronized (through ac transmission with limited capacity) with the U.S. northeastern network. Power exports are therefore dependent on the use of HVDC links of which Hydro-Quebec now possesses five, for a capacity of over 2600 MW. Such a capacity will again soon increase. At the moment, the Chateauguay scheme has the largest HVDC capacity. It transfers 1000 MW by means of two Back-to-Back converter blocks. Various automatic control systems are installed on the Chateauguay scheme owing to the fact that a single circuit of a 765 kV ac line transmits the output of both the HVDC converter stations as well as the output from Beauharnois hydro generating station. Such controls have performed satisfactorily since 1984. However, a remarkable improvement of the overall ac/dc system dynamic performance can be gained by making certain modifications in some of these HVDC system controls. This paper presents the salient features of such control modifications, currently under consideration, using the results of an investigation by digital and analogue simulations that demonstrate the achieved improvements.

Hammad, A.E. (ABB Power Systems, Baden (CH)); Gagnon, J. (Hydro Quebec, Montreal (CA)); McCallum, D. (IREQ, Montreal (CA))

1990-10-01T23:59:59.000Z

351

A Spatial Computing Architecture for Implementing Computational Circuits  

E-Print Network [OSTI]

A Spatial Computing Architecture for Implementing Computational Circuits David Grant and Guy G. F an architecture and tool flow for rapidly compiling and simulating/executing computational circuits. We use tool could quickly map a computational circuit onto the architecture. Field Programmable Gate Arrays

Lemieux, Guy

352

Logic Synthesis with High Speed CMOS Circuit Techniques  

Science Journals Connector (OSTI)

Systems for automated logic synthesis with the True Single Phase Clocking circuit technique (TSPC) and a modified form of the Clock and Data Precharged Dynamic (CDPD) circuit technique, are presented. The CDPD system synthesizes high speed one clock ... Keywords: CMOS integrated circuits, logic synthesis

Johnny Pihl; Einar J. Aas

1997-01-01T23:59:59.000Z

353

Optimized Waveform Relaxation Solution of RLCG Transmission Line Type Circuits  

E-Print Network [OSTI]

Optimized Waveform Relaxation Solution of RLCG Transmission Line Type Circuits Mohammad D. Al to transmission line circuit problems based on the longitudinal partitioning into segments. This greatly improves the convergence for strongly coupled RLCG transmission line (TL) type circuits. The method can be applied to other

Gander, Martin J.

354

Energy Department Completes Cool Roof Installation on DC Headquarters  

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

Completes Cool Roof Installation on DC Completes Cool Roof Installation on DC Headquarters Building to Save Money by Saving Energy Energy Department Completes Cool Roof Installation on DC Headquarters Building to Save Money by Saving Energy December 14, 2010 - 12:00am Addthis Washington - Secretary Steven Chu today announced the completion of a new cool roof installation on the Department of Energy's Headquarters West Building. There was no incremental cost to adding the cool roof as part of the roof replacement project and it will save taxpayers $2,000 every year in building energy costs. Cool roofs use lighter-colored roofing surfaces or special coatings to reflect more of the sun's heat, helping improve building efficiency, reduce cooling costs and offset carbon emissions. The cool roof and increased insulation at the facility were

355

News From the D.C. Office: Efficient Office Equipment  

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

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Efficient Office Equipment: Update and a Look Ahead An extended version of this article is available here. We are now well aware of the large amount of energy consumed by "plug-in loads" such as personal computers (PCs) and other office electronics. Office equipment is often cited as the fastest-growing end-use of electricity in the fastest-growing sector of demand (commercial buildings). According to Dataquest figures, world growth of PCs will average 14 to 15 percent per year through 1999. Only ten years ago, office equipment was not even part of the "map" of non-residential energy end-uses. There were virtually no data on office equipment energy use, nor an awareness of the

356

Argonne TTRDC - TTR Goes to D.C.  

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

Argonne's Through-the-Road Hybrid goes to Washington, D.C., Auto Show Argonne's Through-the-Road Hybrid goes to Washington, D.C., Auto Show Argonne's Through the Road Vehicle Argonne's Through-the-Road Hybrid Vehicle Argonne's Through-the-Road hybrid vehicle (TTR) will be on display at the Washington Auto Show at Walter E. Washington Convention Center, February 4-8, 2009, in Washington, D.C. The TTR will be in the combined U.S. Department of Energy, Environmental Protection Agency, and Department of Transportation exhibit booth that features advanced vehicle technologies that are safe, clean, and efficient. Due to power-split limitations, no plug-in hybrid electric vehicle (PHEV) exists that can complete an Urban Dynamometer Driving Schedule (UDDS) cycle without starting the engine. Argonne created the TTR, an in-house PHEV development platform with an open

357

DOE Solar Decathlon: News Blog » Team Capitol DC  

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

Capitol DC Capitol DC Below you will find Solar Decathlon news from the Team Capitol DC archive, sorted by date. Hangout With Solar Decathlon 2013 Teams on Sept. 18! Wednesday, September 11, 2013 By Rebecca Matulka Editor's Note: This entry has been cross-posted from DOE's Energy Blog. Photo of a Solar Decathlon house at night. Superimposed is the following text: "Solar Decathlon 2013: The Path to a Brighter Future. Energy.gov/live. Wednesday, Sept. 18, at p.m. ET. #askSD." Mark your calendars for a Google+ Hangout on Solar Decathlon 2013: The Path to a Brighter Future on Wednesday, Sept. 18, at 2 p.m. ET. For more than 10 years, the U.S. Department of Energy Solar Decathlon has been preparing the next wave of energy leaders-providing hands-on experience in designing and building energy-efficient, solar-powered

358

2012 Race to DC | ENERGY STAR Buildings & Plants  

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

12 Race to DC 12 Race to DC Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section Why you should design to earn the ENERGY STAR Follow EPA's step-by-step process ENERGY STAR Challenge for Architects 2013 Race to Denver 2012 Race to DC 2011 Race to New Orleans 2010 Race to Miami 2009 Race to San Francisco 2008 Race to Boston 2007 Race to San Antonio

359

SAIL Venture Partners (Washington DC) | Open Energy Information  

Open Energy Info (EERE)

DC) DC) Name SAIL Venture Partners (Washington DC) Address 2900 S. Quincy St, Suite 375 Place Arlington, Virginia Zip 22206 Product Venture capital fund focusing on clean energy Year founded 2002 Phone number (703) 379-2713 Website http://www.sailvc.com/ Coordinates 38.839975°, -77.087781° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.839975,"lon":-77.087781,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

360

NREL: Energy Analysis - Washington D.C. Office Staff  

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

Washington D.C. Office Washington D.C. Office The following SEAC staff are based in our Washington D.C. Office. They support a variety of programs and activities, and often are the liaison between the U.S. Department of Energy and staff based in Golden, Colorado. Team Lead: Margaret Mann (Golden) Administrative Support: JoAnn Weaver (Golden) Thomas Jenkin Austin Brown David J. Feldman Tom Schneider Robert Margolis Kathleen Nawaz Monisha Shah Photo of Austin Brown. Austin Brown Senior Analyst (Strategic Planning) Areas of expertise Crosscutting low-carbon strategies Clean transportation technologies and policies Primary research interests Clean energy research portfolio planning Energy and society Sustainable transportation systems More information on Austin Brown Photo of David J. Feldman

Note: This page contains sample records for the topic "dc circuit outage" 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

Nuclear magnetic resonance experiments with dc SQUID amplifiers  

SciTech Connect (OSTI)

The development and fabrication of dc SQUIDs (Superconducting QUantum Interference Devices) with Nb/Al{sub 2}O{sub 3}/Nb Josephson junctions is described. A theory of the dc SQUID as a radio-frequency amplifier is presented, with an optimization strategy that accounts for the loading and noise contributions of the postamplifier and maximizes the signal-to-noise ratio of the total system. The high sensitivity of the dc SQUID is extended to high field NMR. A dc SQUID is used as a tuned radio-frequency amplifier to detect pulsed nuclear magnetic resonance at 32 MHz from a metal film in a 3.5 Tesla static field. A total system noise temperature of 11 K has been achieved, at a bath temperature of 4.2 K. The minimum number of nuclear Bohr magnetons observable from a free precession signal after a single pulse is about 2 {times} 10{sup 17} in a bandwidth of 25 kHz. In a separate experiment, a dc SQUID is used as a rf amplifier in a NQR experiment to observe a new resonance response mechanism. The net electric polarization of a NaClO{sub 3} crystal due to the precessing electric quadrupole moments of the Cl nuclei is detected at 30 MHz. The sensitivity of NMR and NQR spectrometers using dc SQUID amplifiers is compared to the sensitivity of spectrometers using conventional rf amplifiers. A SQUID-based spectrometer has a voltage sensitivity which is comparable to the best achieved by a FET-based spectrometer, at these temperatures and operating frequencies.

Heaney, M.B. (California Univ., Berkeley, CA (USA). Dept. of Physics Lawrence Berkeley Lab., CA (USA))

1990-11-01T23:59:59.000Z

362

Graphite electrode DC arc furnace. Innovative technology summary report  

SciTech Connect (OSTI)

The Graphite Electrode DC Arc Furnace (DC Arc) is a high-temperature thermal process, which has been adapted from a commercial technology, for the treatment of mixed waste. A DC Arc Furnace heats waste to a temperature such that the waste is converted into a molten form that cools into a stable glassy and/or crystalline waste form. Hazardous organics are destroyed through combustion or pyrolysis during the process and the majority of the hazardous metals and radioactive components are incorporated in the molten phase. The DC Arc Furnace chamber temperature is approximately 593--704 C and melt temperatures are as high as 1,500 C. The DC Arc system has an air pollution control system (APCS) to remove particulate and volatiles from the offgas. The advantage of the DC Arc is that it is a single, high-temperature thermal process that minimizes the need for multiple treatment systems and for extensive sorting/segregating of large volumes of waste. The DC Arc has the potential to treat a wide range of wastes, minimize the need for sorting, reduce the final waste volumes, produce a leach resistant waste form, and destroy organic contaminants. Although the DC arc plasma furnace exhibits great promise for treating the types of mixed waste that are commonly present at many DOE sites, several data and technology deficiencies were identified by the Mixed Waste Focus Area (MWFA) regarding this thermal waste processing technique. The technology deficiencies that have been addressed by the current studies include: establishing the partitioning behavior of radionuclides, surrogates, and hazardous metals among the product streams (metal, slag, and offgas) as a function of operating parameters, including melt temperature, plenum atmosphere, organic loading, chloride concentration, and particle size; demonstrating the efficacy of waste product removal systems for slag and metal phases; determining component durability through test runs of extended duration, evaluating the effect of feed composition variations on process operating conditions and slag product performance; and collecting mass balance and operating data to support equipment and instrument design.

NONE

1999-05-01T23:59:59.000Z

363

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS, VOL. CAS-32,NO. 7, JULY 1985 Circuits, k-Ports, Hidden Modes, and  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS, VOL. CAS-32,NO. 7, JULY 1985 Circuits, k-Ports, Hidden Modes, and Stability of Interconnected k-Ports 635 CHARLES A. DESOER, FELLOW, IEEE, AND A. NAZLI GijNDES Alisrrocr -This paper exclusively considers lumped k-ports and circuits which contain linear time

Gundes, A. N.

364

Active dc filter for HVDC system--A test installation in the Konti-Skan DC link at Lindome converter station  

SciTech Connect (OSTI)

The purpose of introducing active dc filters is to meet the more and more stringent requirement from power utilities on limiting telephone interference caused by harmonic currents from HVdc transmission lines, without unnecessarily increasing the cost of HVdc stations. An active dc filter installed in the Konti-Skan HVdc link is described. The active dc filter is connected at the bottom of an existing passive dc filter at the Lindome station. The active dc filter includes optic harmonic current measuring unit, control system, protection and supervision system, PWM power amplifier, high-frequency transformer, surge arrester, and coupling apparatuses. The active dc filter has small physical size and occupies small ground area. The performance of the active dc filter for eliminating the disturbing harmonics is excellent. To achieve comparable results by passive filters would require something like ten times more high voltage equipment.

Zhang, Wenyan; Asplund, G. (ABB Power Systems, Ludvika (Sweden). HVDC Division); Aberg, A. (ABB Corporate Research, Lund (Sweden). Dept. of Man-Machine Communication); Jonsson, U. (Svenska Kraftnaet, Vaellingby (Sweden)); Loeoef, O. (Vattenfall AB, Trollhaettan (Sweden). Region Vaestsverige)

1993-07-01T23:59:59.000Z

365

Design and analysis of a zero-voltage switching scheme for a dc- to-dc converter  

E-Print Network [OSTI]

. Singh (Member) (Memberl E. G. guak (Member) A. 3. Pat, ton Head of Department) December 199'2 ABSTRA('T Design and Analysis of a Zero-4'oltage Switching Si. heme for a. Dc-to-Dc Converter. (December Iq'3'd) G. Arun, H. S. , College Of Engg...&rt~RV, Page 40 Voltage across inain switch in a clc cliopper clrive with zeio-voltage s w 1 't C 1 1 i l1 g , &g CHAPTER I INTRODUCTION A. Introduction In general terms, power electronics is concerned wit, h the conversion and control of electrical...

Arun, G.

2012-06-07T23:59:59.000Z

366

TRIAC/SCR proportional control circuit  

DOE Patents [OSTI]

A power controller device is disclosed which uses a voltage-to-frequency converter in conjunction with a zero crossing detector to linearly and proportionally control AC power being supplied to a load. The output of the voltage-to frequency converter controls the ``reset`` input of a R-S flip flop, while an ``0`` crossing detector controls the ``set`` input. The output of the flip flop triggers a monostable multivibrator controlling the SCR or TRIAC firing circuit connected to the load. Logic gates prevent the direct triggering of the multivibrator in the rare instance where the ``reset`` and ``set`` inputs of the flip flop are in coincidence. The control circuit can be supplemented with a control loop, providing compensation for line voltage variations. 9 figs.

Hughes, W.J.

1999-04-06T23:59:59.000Z

367

TRIAC/SCR proportional control circuit  

DOE Patents [OSTI]

A power controller device which uses a voltage-to-frequency converter in conjunction with a zero crossing detector to linearly and proportionally control AC power being supplied to a load. The output of the voltage-to frequency converter controls the "reset" input of a R-S flip flop, while an "0" crossing detector controls the "set" input. The output of the flip flop triggers a monostable multivibrator controlling the SCR or TRIAC firing circuit connected to the load. Logic gates prevent the direct triggering of the multivibrator in the rare instance where the "reset" and "set" inputs of the flip flop are in coincidence. The control circuit can be supplemented with a control loop, providing compensation for line voltage variations.

Hughes, Wallace J. (Boston Lake, NY)

1999-01-01T23:59:59.000Z

368

Vacuum die attach for integrated circuits  

DOE Patents [OSTI]

A thin film eutectic bond for attaching an integrated circuit die to a circuit substrate is formed by coating at least one bonding surface on the die and substrate with an alloying metal, assembling the die and substrate under compression loading, and heating the assembly to an alloying temperature in a vacuum. A very thin bond, 10 microns or less, which is substantially void free, is produced. These bonds have high reliability, good heat and electrical conduction, and high temperature tolerance. The bonds are formed in a vacuum chamber, using a positioning and loading fixture to compression load the die, and an IR lamp or other heat source. For bonding a silicon die to a silicon substrate, a gold silicon alloy bond is used. Multiple dies can be bonded simultaneously. No scrubbing is required. 1 figure.

Schmitt, E.H.; Tuckerman, D.B.

1991-09-10T23:59:59.000Z

369

Custom VLSI circuits for high energy physics  

SciTech Connect (OSTI)

This article provides a brief guide to integrated circuits, including their design, fabrication, testing, radiation hardness, and packaging. It was requested by the Panel on Instrumentation, Innovation, and Development of the International Committee for Future Accelerators, as one of a series of articles on instrumentation for future experiments. Their original request emphasized a description of available custom circuits and a set of recommendations for future developments. That has been done, but while traps that stop charge in solid-state devices are well known, those that stop physicists trying to develop the devices are not. Several years spent dodging the former and developing the latter made clear the need for a beginner`s guide through the maze, and that is the main purpose of this text.

Parker, S. [Univ. of Hawaii, Honolulu, HI (United States)

1998-06-01T23:59:59.000Z

370

Electromagnetic Coupling in a dc Motor and Tachometer Assembly  

E-Print Network [OSTI]

-pole permanent magnet stator devices. A shaft of finite stiffness connects the tachometer and motor armatures machines. The experimental test setup consists of an integrated permanent magnet dc motor-tachometer unit-tachometer shaft or a flexible mechanical coupling, this exercise in servo-control design becomes quite challenging

Awtar, Shorya

371

Natural Gas Pipeline Leaks Across Washington, DC Robert B. Jackson,,,  

E-Print Network [OSTI]

Natural Gas Pipeline Leaks Across Washington, DC Robert B. Jackson,,, * Adrian Down, Nathan G increased in recent decades, but incidents involving natural gas pipelines still cause an average of 17 fatalities and $133 M in property damage annually. Natural gas leaks are also the largest anthropogenic

Jackson, Robert B.

372

Hybrid Multilevel Inverter with Single DC Haiwen Liu1  

E-Print Network [OSTI]

Hybrid Multilevel Inverter with Single DC Source Haiwen Liu1 , Leon M. Tolbert1, 2 , Burak Ozpineci Knoxville, TN 37932 3. Parker-Hannifin Corp. Olive Branch, MI 38654 Abstract- A hybrid multilevel inverter inverter (one leg for each phase) and H-bridge in series with each inverter leg. The inverter can be used

Tolbert, Leon M.

373

Decomposition of Naphthalene by dc Gliding Arc Gas Discharge  

Science Journals Connector (OSTI)

Decomposition of Naphthalene by dc Gliding Arc Gas Discharge ... In the air and oxygen gliding arc discharges, the naphthalene degradation is mainly governed by reactions with oxygen-derived radicals. ... Therefore, the local electric field strength is relatively low in argon gliding arc plasma. ...

Liang Yu; Xiaodong Li; Xin Tu; Yu Wang; Shengyong Lu; Jianhua Yan

2009-12-11T23:59:59.000Z

374

Fuzzy Estimation of DC Motor Winding Currents Innovatia Software  

E-Print Network [OSTI]

stator windings. an attractive alternative to current estimation using In order to implement an eFuzzy Estimation of DC Motor Winding Currents Dan Simon Innovatia Software 775 Rothrock Circle °ux is rotated in the desired direction of ofuzzy ¯ltering to motor winding current estimation

Simon, Dan

375

Electrostatic coalescence system with independent AC and DC hydrophilic electrodes  

DOE Patents [OSTI]

An improved electrostatic coalescence system is provided in which independent AC and DC hydrophilic electrodes are employed to provide more complete dehydration of an oil emulsion. The AC field is produced between an AC electrode array and the water-oil interface wherein the AC electrode array is positioned parallel to the interface which acts as a grounded electrode. The emulsion is introduced into the AC field in an evenly distributed manner at the interface. The AC field promotes drop-drop and drop-interface coalescence of the water phase in the entering emulsion. The continuous oil phase passes upward through the perforated AC electrode array and enters a strong DC field produced between closely spaced DC electrodes in which small dispersed droplets of water entrained in the continuous phase are removed primarily by collection at hydrophilic DC electrodes. Large droplets of water collected by the electrodes migrate downward through the AC electrode array to the interface. All phase separation mechanisms are utilized to accomplish more complete phase separation.

Hovarongkura, A. David (Arlington, VA); Henry, Jr., Joseph D. (Morgantown, WV)

1981-01-01T23:59:59.000Z

376

Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices  

E-Print Network [OSTI]

Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices L'Enfant Plaza and Kristin Deason Sentech, Inc. January 16, 2008 #12;SUMMARY REPORT Hydrogen Storage Systems Analysis Objectives This meeting was one of a continuing series of biannual meetings of the Hydrogen Storage Systems

377

EE443L Lab 2: Modeling a DC Motor Introduction  

E-Print Network [OSTI]

and add conversion factors. Copy the LabVIEW VI lab2.vi and its associated subVI Altera the four conversion factors. Motor voltage is measured with a voltage divider to ensure DAQ card analog: The DC motor is a common actuator in control systems that converts electrical energy into rotational

Wedeward, Kevin

378

National Energy Education Summit to Electrify D.C.  

Office of Energy Efficiency and Renewable Energy (EERE)

On January 26, energy educators from across the country will convene in Washington, D.C., to address the need for nationwide energy literacy. Join us for the National Energy Education Summit, hosted by the Council of Energy Research and Education Leaders.

379

Base drive and overlap protection circuit  

DOE Patents [OSTI]

An inverter (34) which provides power to an A. C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A. C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A. C. machine is optimized. The control circuit includes a microcomputer and memory element which receive various parametric inputs and calculate optimized machine control data signals therefrom. The control data is asynchronously loaded into the inverter through an intermediate buffer (38). A base drive and overlap protection circuit is included to insure that both transistors of a complimentary pair are not conducting at the same time. In its preferred embodiment, the present invention is incorporated within an electric vehicle (10) employing a 144 VDC battery pack (32) and a three-phase induction motor (18).

Gritter, David J. (Southfield, MI)

1983-01-01T23:59:59.000Z

380

High Temperature, High Voltage Fully Integrated Gate Driver Circuit  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

Note: This page contains sample records for the topic "dc circuit outage" from the National Library of EnergyBeta (NLEBeta).
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381

High Temperature, High Voltage Fully Integrated Gate Driver Circuit  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

382

Dynamic Resistance of YBCO-Coated Conductors in Applied AC Fields with DC Transport Currents and DC Background Fields  

SciTech Connect (OSTI)

In order to predict heat loads in future saturable core fault-current-limiting devices due to ac fringing fields, dynamic resistance in YBCO-coated conductors was measured at 77 K in peak ac fields up to 25 mT at 60 Hz and in dc fields up to 1 T. With the sample orientation set such that the conductor face was either parallel or perpendicular to the ac and dc applied fields, the dynamic resistance was measured at different fractions of the critical current to determine the relationship between the dc transport current and the applied fields. With respect to field orientation, the dynamic resistance for ac fields that were perpendicular to the conductor face was significantly higher than when the ac fields were parallel to the conductor face. It was also observed that the dynamic resistance: (1) increased with increasing fraction of the dc transport current to the critical current, (2) was proportional to the inverse of the critical current, and (3) demonstrated a linear dependence with the applied ac field once a threshold field was exceeded. This functional behavior was consistent with a critical state model for the dynamic resistance, but discrepancies in absolute value of the dynamic resistance suggested that further theoretical development is needed.

Duckworth, Robert C [ORNL] [ORNL; Zhang, Yifei [ORNL] [ORNL; Ha, Tam T [ORNL] [ORNL; Gouge, Michael J [ORNL] [ORNL

2011-01-01T23:59:59.000Z

383

Train the Teacher - Energy Workshops for DC-area Elementary School...  

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

Train the Teacher - Energy Workshops for DC-area Elementary School Teachers Train the Teacher - Energy Workshops for DC-area Elementary School Teachers May 2, 2014 1:00PM to 4:15PM...

384

Policy Flash 2013-76 Term Assignments of Contractors to the DC...  

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

6 Term Assignments of Contractors to the DC Area Policy Flash 2013-76 Term Assignments of Contractors to the DC Area Questions concerning this policy flash should be directed to A...

385

A Segmented Drive System with a Small DC Bus Capacitor | Department...  

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

-- Washington D.C. apep08su.pdf More Documents & Publications A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive Inverter Topology with a...

386

D.C. Middle and High School Students Get a Chance to Experience...  

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

D.C. Middle and High School Students Get a Chance to Experience the Regional Science Bowl Competition Setting D.C. Middle and High School Students Get a Chance to Experience the...

387

Energy Secretary Moniz's Remarks at CSIS in Washington D.C. on...  

Office of Environmental Management (EM)

Energy Secretary Moniz's Remarks at CSIS in Washington D.C. on Energy Security 40 Years after the Embargo - As Delivered Energy Secretary Moniz's Remarks at CSIS in Washington D.C....

388

DC powerline communication system using a transmission line transformer for high degree of freedom applications  

E-Print Network [OSTI]

A new type of powerline communication is developed to reduce cable requirements for robotic, electromechanical, and vehicular systems. A DC power bus line connecting a DC power supply to motor drives and sensor units is ...

Wade, Eric R. (Eric Randolph), 1978-

2004-01-01T23:59:59.000Z

389

Interviews in Washington, DC for Albert Einstein Fellowship Semi-Finalists  

Broader source: Energy.gov [DOE]

Selected semi-finalists in the Albert Einstein Distinguished Educator Fellowship are invited to DC for interviews.

390

Proceedings of the National Hydrogen Energy Roadmap Workshop: Washington, DC; April 2-3, 2002  

Broader source: Energy.gov [DOE]

Summary of the Proceedings of the National Hydrogen Energy Roadmap Workshop held April 2-3, 2002 in Washington, DC.

391

Secretary Moniz's Remarks at the Powering Africa Summit in Washington, D.C.-- As Delivered  

Broader source: Energy.gov [DOE]

Secretary Moniz's remarks, as delivered, at the Power Africa Summit in Washington, D.C. on January 29, 2015.

392

A Decentralized Protection Scheme for Converters Utilizing a DC-link Inductor  

E-Print Network [OSTI]

- as in HVDC transmission for example - as well as in DC-links for high-power current source inverters

Lipo, Thomas

393

Speed control of DC motor based on neural net and fuzzy logic  

Science Journals Connector (OSTI)

This paper presented the speed control of DC motor based on neural net and fuzzy logic. To bypass the difficulties caused by system constraints and modelling uncertainties of the speed control of DC motor a neural network approach for on-line speed control ... Keywords: DC motor, fuzzy logic, neural network, speed control

Zahra Moravej

2005-09-01T23:59:59.000Z

394

BEAM DYNAMICS SIMULATIONS FOR A DC GUN BASED INJECTOR F.Zhou 1,2,  

E-Print Network [OSTI]

BEAM DYNAMICS SIMULATIONS FOR A DC GUN BASED INJECTOR FOR PERL* F.Zhou 1,2, , I.Ben-Zvi2 , X for this machine are being extensively investigated at BNL. One of the possible options is photocathode DC gun. The schematic layout of a PERL DC gun based injector and its preliminary beam dynamics are presented

Brookhaven National Laboratory

395

November 2002 15th TOFE, Washington, D.C. 1 Thermal Behavior and Operating  

E-Print Network [OSTI]

November 2002 15th TOFE, Washington, D.C. 1 Thermal Behavior and Operating Requirements of IFE Washington, D.C. November 2002 #12;November 2002 15th TOFE, Washington, D.C. 2 Abstract During injection the thermal behavior of the target under such conditions and explores possible ways of extending the target

Raffray, A. René

396

Control of a Fuel-Cell Powered DC Electric Vehicle Motor  

E-Print Network [OSTI]

Control of a Fuel-Cell Powered DC Electric Vehicle Motor Federico Zenith Sigurd Skogestad of a Fuel-Cell Powered DC Electric Vehicle Motor #12;3 Currently Available Models and Control Strategies Skogestad, Control of a Fuel-Cell Powered DC Electric Vehicle Motor #12;3 Currently Available Models

Skogestad, Sigurd

397

Towards Building an Optimal Demand Response Framework for DC Distribution Networks  

E-Print Network [OSTI]

Towards Building an Optimal Demand Response Framework for DC Distribution Networks Hamed Mohsenian, an optimization-based foundation is proposed for demand response in DC distribution networks in presence to assess the performance and to gain insights into the proposed demand-response paradigm. Keywords: DC

Mohsenian-Rad, Hamed

398

DSP IMPLEMENTATION OF DC VOLTAGE REGULATION USING ADAPTIVE CONTROL FOR 200 KW 62000 RPM  

E-Print Network [OSTI]

to control the DC voltage for 200 kW induction generator rated at a speed of 62000 RPM under different load to regulate the DC voltage for high speed induction generators rated from 5 kW to 200 kW. ii #12DSP IMPLEMENTATION OF DC VOLTAGE REGULATION USING ADAPTIVE CONTROL FOR 200 KW 62000 RPM INDUCTION

Wu, Thomas

399

On the optimization of a dc arcjet diamond chemical vapor deposition reactor  

E-Print Network [OSTI]

On the optimization of a dc arcjet diamond chemical vapor deposition reactor S. W. Reevea) and W. A precursor in our dc arcjet reactor.1 Based on conclusions drawn from that work, an optimization strategy diamond film growth in a dc arcjet chemical vapor deposition reactor has been developed. Introducing

Dandy, David

400

A direct AC-to-DC converter topology with high-frequency isolation  

E-Print Network [OSTI]

-to-ac converter eliminating the acto-dc rectification stage, power factor correction boost stage, and dc-dc converter stage present in the conventional system. The output of the high-frequency isolation transformer is rectified and processed via a filtering stage...

Sulistyono, Widodo

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

In situ strain monitoring of fiber-reinforced polymers using embedded piezoresistive nanocomposites  

E-Print Network [OSTI]

strain-free DC resistance and EIS equivalent circuit elementthe EIS equivalent circuit elements and DC resistance are ?EIS equivalent circuit parameters and the DC resistance for

Loyola, Bryan R.; Saponara, Valeria; Loh, Kenneth J.

2010-01-01T23:59:59.000Z

402

Synthesis of the Optimal 4-bit Reversible Circuits  

E-Print Network [OSTI]

Optimal synthesis of reversible functions is a non-trivial problem. One of the major limiting factors in computing such circuits is the sheer number of reversible functions. Even restricting synthesis to 4-bit reversible functions results in a huge search space (16!~2^44 functions). The output of such a search alone, counting only the space required to list Toffoli gates for every function, would require over 100 terabytes of storage. In this paper, we present an algorithm that synthesizes an optimal circuit for any 4-bit reversible specification. We employ several techniques to make the problem tractable. We report results from several experiments, including synthesis of random 4-bit permutations, optimal synthesis of all 4-bit linear reversible circuits, synthesis of existing benchmark functions, and distribution of optimal circuits. Our results have important implications for the design and optimization of quantum circuits, testing circuit synthesis heuristics, and performing experiments in the area of quantum information processing.

Oleg Golubitsky; Sean M. Falconer; Dmitri Maslov

2010-03-09T23:59:59.000Z

403

SAS Output  

U.S. Energy Information Administration (EIA) Indexed Site

A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours by Cause Code and by NERC Region, 2012 A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours by Cause Code and by NERC Region, 2012 AC & DC Circuit Outage Counts Sustained Outage Causes FRCC MRO NPCC RFC SERC SPP TRE WECC Contiguous U.S. Weather, excluding lightning 6.00 27.00 3.00 30.00 63.00 12.00 -- 69.00 210.00 Lightning 5.00 10.00 8.00 5.00 31.00 16.00 13.00 57.00 145.00 Environmental -- 1.00 1.00 5.00 -- 1.00 -- -- 8.00 Contamination 14.00 -- -- -- 22.00 3.00 6.00 7.00 52.00 Foreign Interference 34.00 3.00 -- 4.00 13.00 1.00 2.00 14.00 71.00 Fire -- 2.00 -- 1.00 6.00 3.00 1.00 85.00 98.00 Vandalism, Terrorism, or Malicious Acts -- -- -- -- 2.00 -- -- 1.00 3.00 Failed AC Substation Equipment 18.00 16.00 35.00 63.00 57.00 16.00 15.00 65.00 285.00

404

3D packaging for integrated circuit systems  

SciTech Connect (OSTI)

A goal was set for high density, high performance microelectronics pursued through a dense 3D packing of integrated circuits. A {open_quotes}tool set{close_quotes} of assembly processes have been developed that enable 3D system designs: 3D thermal analysis, silicon electrical through vias, IC thinning, mounting wells in silicon, adhesives for silicon stacking, pretesting of IC chips before commitment to stacks, and bond pad bumping. Validation of these process developments occurred through both Sandia prototypes and subsequent commercial examples.

Chu, D.; Palmer, D.W. [eds.

1996-11-01T23:59:59.000Z

405

Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Analysis of core damage frequency from internal events for Plant Operational State 5 during a refueling outage. Volume 2, Part 3: Internal Events Appendices I and J  

SciTech Connect (OSTI)

This report provides supporting documentation for various tasks associated with the performance of the probablistic risk assessment for Plant Operational State 5 during a refueling outage at Grand Gulf, Unit 1 as documented in Volume 2, Part 1 of NUREG/CR-6143.

Yakle, J. [Science Applications International Corp., Albuquerque, NM (United States); Darby, J. [Science and Engineering Associates, Inc., Albuquerque, NM (United States); Whitehead, D.; Staple, B. [Sandia National Labs., Albuquerque, NM (United States)

1994-06-01T23:59:59.000Z

406

DC Resistivity Survey (Schlumberger Array) At Raft River Geothermal Area  

Open Energy Info (EERE)

Area Area (1974-1975) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: DC Resistivity Survey (Schlumberger Array) At Raft River Geothermal Area (1974-1975) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique DC Resistivity Survey (Schlumberger Array) Activity Date 1974 - 1975 Usefulness not indicated DOE-funding Unknown Exploration Basis Hydrogeologic study of the area Notes In 1975, the U.S. Geological Survey made 70 Schlumberger resistivity soundings in the Upper Raft River Valley and in parts of the Raft River Valley. These soundings complement the 79 soundings made previously in the Raft River Valley and bring the total number of soundings to 149. This work was done as part of a hydrogeologic study of the area. The location,

407

Disc rotors with permanent magnets for brushless dc motor  

SciTech Connect (OSTI)

This patent describes a brushless dc permanent magnet motor for driving an autonomous underwater vehicle. It comprises first and second substantially flat, generally cylindrical stators disposed in side by side relation; a first substantially flat, generally cylindrical rotor; a first shaft connected to the first rotor and a second, concentric shaft connected to the second rotor; and means for providing rotation of the first and second shafts in opposite directions.

Hawsey, R.A.; Bailery, J.M.

1992-05-26T23:59:59.000Z

408

Synthesis of silicon nanotubes by DC arc plasma method  

SciTech Connect (OSTI)

Plasma synthesis is a novel technique of synthesis of nanomaterials as they provide high rate of production and promote metastable reactions. Very thin walled silicon nanotubes were synthesized in a DC direct arc thermal plasma reactor. The effect of parameters of synthesis i.e. arc current and presence of hydrogen on the morphology of Si nanoparticles is reported. Silicon nanotubes were characterized by Transmission Electron Microscopy (TEM), Local Energy Dispersive X-ray analysis (EDAX), and Scanning Tunneling Microscopy (STM).

Tank, C. M.; Bhoraskar, S. V.; Mathe, V. L. [Department of Physics, University of Pune, Pune-7, Maharashtra (India)

2012-06-05T23:59:59.000Z

409

!#"%$'&)(02130546708913@A4B0DC Scott Schaefer, Joe Warren  

E-Print Network [OSTI]

¢¡¤£¦¥¨§©©¡ !#"%$'&)(¤02130546708913£@¡A4B0DC Scott Schaefer, Joe Warren Rice UniversityE: for each edge in the grid that contains a sign change (i.e.; the vertices on its end- points these methods primal methods. i e-mail: p sschaefe,jwarrenq @rice.edu Figure 1: A sphere contoured using

Warren, Joe

410

Report on Non-Contact DC Electric Field Sensors  

SciTech Connect (OSTI)

This document reports on methods used to measure DC electrostatic fields in the range of 100 to 4000 V/m using a non-contact method. The project for which this report is written requires this capability. Non-contact measurements of DC fields is complicated by the effect of the accumulation of random space-charges near the sensors which interfere with the measurement of the field-of-interest and consequently, many forms of field measurements are either limited to AC measurements or use oscillating devices to create pseudo-AC fields. The intent of this document is to report on methods discussed in the literature for non-contact measurement of DC fields. Electric field meters report either the electric field expressed in volts per distance or the voltage measured with respect to a ground reference. Common commercial applications for measuring static (DC) electric fields include measurement of surface charge on materials near electronic equipment to prevent arcing which can destroy sensitive electronic components, measurement of the potential for lightning to strike buildings or other exposed assets, measurement of the electric fields under power lines to investigate potential health risks from exposure to EM fields and measurement of fields emanating from the brain for brain diagnostic purposes. Companies that make electric field sensors include Trek (Medina, NY), MKS Instruments, Boltek, Campbell Systems, Mission Instruments, Monroe Electronics, AlphaLab, Inc. and others. In addition to commercial vendors, there are research activities continuing in the MEMS and optical arenas to make compact devices using the principles applied to the larger commercial sensors.

Miles, R; Bond, T; Meyer, G

2009-06-16T23:59:59.000Z

411

Laser Micromachining of Active and Passive Photonic Integrated Circuits  

E-Print Network [OSTI]

This thesis describes the development of advanced laser resonators and applications of laserinduced micromachining for photonic circuit fabrication. Two major advantages of laserinduced micromachining are direct patterning ...

Cho, Seong-Ho

2006-06-28T23:59:59.000Z

412

Circuit Topology Study of Grid-Connected Photovoltaic System.  

E-Print Network [OSTI]

??Many different circuit topologies have been suggested for large scale photovoltaic systems. The cost and the efficiency are still the major issues of large scale… (more)

Mansouri, Seyed Akbar

2011-01-01T23:59:59.000Z

413

6.012 Microelectronic Devices and Circuits, Fall 2003  

E-Print Network [OSTI]

Modeling of microelectronic devices, and basic microelectronic circuit analysis and design. Physical electronics of semiconductor junction and MOS devices. Relation of electrical behavior to internal physical processes; ...

Fonstad, Clifton G.

414

Graphene-based plasmonic waveguides for photonic integrated circuits  

Science Journals Connector (OSTI)

We perform experimental investigations on the characteristics of graphene-based plasmonic waveguides for development of photonic integrated circuits. By embedding chemical vapor...

Kim, Jin Tae; Choi, Sung-Yool

2011-01-01T23:59:59.000Z

415

Derivative-free Robust Optimization for Circuit Design  

E-Print Network [OSTI]

Keywords Robust Optimization · Derivative-free Methods · Circuit Design ... uncertainty in real-world applications. ... no first order information is available (

2013-09-27T23:59:59.000Z

416

Reliable and economical circuit I V characterization solar cells  

Science Journals Connector (OSTI)

A transistorized circuit for solar cells which is easy to assemble and use for undergraduate teaching laboratories is described.(AIP)

Y. H. Muoy; J. P. Charles; M. Adbelkrim

1981-01-01T23:59:59.000Z

417

Development of nickel silicide for integrated circuit technology.  

E-Print Network [OSTI]

?? Continuous advancements in devices, materials and processes have resulted in integrated circuits with smaller device dimensions, higher functionality and higher speed. The complementary metal… (more)

Do, Phu H.

2006-01-01T23:59:59.000Z

418

Design for manufacturability with regular fabrics in digital integrated circuits  

E-Print Network [OSTI]

Integrated circuit design is limited by manufacturability. As devices scale down, sensitivity to process variation increases dramatically, making design for manufacturability a critical concern. Designers must identify the ...

Gazor, Mehdi (Seyed Mehdi)

2005-01-01T23:59:59.000Z

419

Junction Temperature Measurement of IGBTs Using Short Circuit Current  

SciTech Connect (OSTI)

In this paper, a method is proposed to measure the junction temperatures of IGBT discrete devices and modules using short circuit current. Experimental results show that the short circuit current has good sensitivity, linearity and selectivity, which is suitable to be used as temperature sensitive electrical parameters (TSEP). Test circuit and hardware design are proposed for junction temperature measurement in single phase and three phase convertes. By connecting a temperature measurement unit to the converter and giving a short circuit pulse, the IGBT junction temperature can be measured.

Wang, Fei [ORNL; Xu, Zhuxian [ORNL; Ning, Puqi [ORNL

2012-01-01T23:59:59.000Z

420

Uncertainty Quantification for Nano-Scale Integrated Circuits...  

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

Uncertainty Quantification for Nano-Scale Integrated Circuits and MEMS Design Event Sponsor: Mathematics and Computing Science Seminar Start Date: Jan 20 2015 - 10:30am Building...

Note: This page contains sample records for the topic "dc circuit outage" 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

Maryland DC Virginia Solar Energy Industries Association MDV SEIA | Open  

Open Energy Info (EERE)

DC Virginia Solar Energy Industries Association MDV SEIA DC Virginia Solar Energy Industries Association MDV SEIA Jump to: navigation, search Name Maryland-DC-Virginia Solar Energy Industries Association (MDV-SEIA) Place Bethesda, Maryland Zip 20814-3954 Sector Solar Product Trade associaton to promote solar equipment in the Mid-Atlantic region in US. Coordinates 40.020185°, -81.073819° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.020185,"lon":-81.073819,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

422

Interrogator system for identifying electrical circuits  

DOE Patents [OSTI]

A system for interrogating electrical leads to correctly ascertain the identity of equipment attached to remote ends of the leads is disclosed. The system includes a source of a carrier signal generated in a controller/receiver to be sent over the leads and an identifier unit at the equipment. The identifier is activated by command of the carrier and uses a portion of the carrier to produce a supply voltage. Each identifier is uniquely programmed for a specific piece of equipment, and causes the impedance of the circuit to be modified whereby the carrier signal is modulated according to that program. The modulation can be amplitude, frequency or phase modulation. A demodulator in the controller/receiver analyzes the modulated carrier signal, and if a verified signal is recognized displays and/or records the information. This information can be utilized in a computer system to prepare a wiring diagram of the electrical equipment attached to specific leads. Specific circuit values are given for amplitude modulation, and the system is particularly described for use with thermocouples. 6 figs.

Jatko, W.B.; McNeilly, D.R.

1988-04-12T23:59:59.000Z

423

Hydraulic actuator for an electric circuit breaker  

DOE Patents [OSTI]

This actuator comprises a fluid motor having a piston, a breaker-opening space at one side of the piston, and a breaker-closing space at its opposite side. An accumulator freely communicates with the breaker-opening space for supplying pressurized fluid thereto during a circuit breaker opening operation. The breaker-opening space and the breaker-closing space are connected by an impeded flow passage. A pilot valve opens to allow the pressurized liquid in the breaker-closing space to flow to a back chamber of a normally closed main valve to cause the main valve to be opened during a circuit breaker opening operation to release the pressurized liquid from the breaker-closing space. An impeded passage affords communication between the back chamber and a sump located on the opposite side of the main valve from the back chamber. The pilot valve and impeded passage allow rapid opening of the main valve with pressurized liquid from the breaker closing side of the piston. 3 figs.

Imam, I.

1983-05-17T23:59:59.000Z

424

DC Regional High School Science Bowl | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

DC Regions » DC Regional High DC Regions » DC Regional High School Science Bowl National Science Bowl® (NSB) NSB Home About High School High School Students High School Coaches High School Regionals High School Rules, Forms, and Resources Middle School Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov Washington DC Regions DC Regional High School Science Bowl Print Text Size: A A A RSS Feeds FeedbackShare Page Regional Coordinator Information Name: Jamie T. Scipio Email: jamie.scipio@hq.doe.gov Regional Event Information Date: Saturday, February 22, 2014 Maximum Number of Teams: 12

425

News From the D.C. Office: Energy-Saving Office Equipment Part 2  

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

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Energy-Saving Office Equipment Part 2: Making the "Virtual Office" Real More on the DC Office efficiency up-grade: Lighting, Office Equipment: Part 1 Regular readers of the Center for Building Science News know that energy-efficient lighting and office equipment can have significant environmental and economic benefits. Previous articles ("Monitored Savings from Energy-Efficient Lighting in D.C. Office" [Spring 1997, p. 3] and "Energy-Saving Office equipment" [Summer 1997, p. 3]) discussed these features of Berkeley Lab's Washington, D.C. office. The D.C. office also serves as a demonstration site for telecommunications technologies, which have energy and environmental benefits of their own.

426

Energy Challenge Two: The WeatherizeDC Campaign | Department of Energy  

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

Energy Challenge Two: The WeatherizeDC Campaign Energy Challenge Two: The WeatherizeDC Campaign Energy Challenge Two: The WeatherizeDC Campaign June 14, 2010 - 9:15am Addthis John Lippert In my quest to learn what other local groups are doing to help the environment and hopefully avoid reinventing the wheel, I attended a meeting of the Greenbelt Climate Action Network, a local chapter of the grassroots, nonprofit organization Chesapeake Climate Action Network. There I met two WeatherizeDC field organizers who described the work they are doing. Terrance and Heather explained that WeatherizeDC is a campaign of The DC Project, a nonprofit based in Washington, D.C., founded by former leaders of the Obama for America campaign around a mission to advance economic and environmental justice by creating clean energy career opportunities for

427

DC Regional Middle School Science Bowl | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

DC Regions » DC Regional Middle DC Regions » DC Regional Middle School Science Bowl National Science Bowl® (NSB) NSB Home About High School Middle School Middle School Students Middle School Coaches Middle School Regionals Middle School Rules, Forms, and Resources Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov Washington DC Regions DC Regional Middle School Science Bowl Print Text Size: A A A RSS Feeds FeedbackShare Page Regional Coordinator Information Name: Chester Scott Email: chester.scott@hq.doe.gov Regional Event Information Date: Saturday, February 8, 2014 Maximum Number of Teams: 12

428

Solar Decathlon at Home in the D.C. Community | Department of Energy  

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

Solar Decathlon at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community Addthis A New Energy-Efficient Home in the D.C. Community 1 of 27 A New Energy-Efficient Home in the D.C. Community On December 4, 2012, the Empowerhouse team, along with partners and community members, completed the installation of a permanent, two-family home in Washington, D.C. The home was originally showcased as part of the U.S Department of Energy's Solar Decathlon 2011. Image: Sarah Gerrity Date taken: 2012-12-04 12:22 2 of 27 The house is located in the D.C. neighborhood of Deanwood, which is just 10 miles from the National Mall. By installing the house nearby, the team was able to minimize shipping costs, therefore reducing the house's carbon footprint. Image: Sarah Gerrity

429

A mathematical analysis of optimized waveform relaxation for a small RC circuit  

Science Journals Connector (OSTI)

Waveform relaxation techniques are an important tool for the simulation of very large scale circuits. They are based on a partition of the circuit into sub-circuits, and then use an iteration between sub-circuits to converge to the solution of the entire ... Keywords: Circuit simulation, Optimized transmission conditions, Waveform relaxation

Mohammad Al-Khaleel; Martin J. Gander; Albert E. Ruehli

2014-01-01T23:59:59.000Z

430

Data:D28923dc-45dc-45e5-b62b-3ca789517591 | Open Energy Information  

Open Energy Info (EERE)

923dc-45dc-45e5-b62b-3ca789517591 923dc-45dc-45e5-b62b-3ca789517591 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Northern States Power Co - Minnesota Effective date: 2012/05/01 End date if known: Rate name: SMALL GENERAL TIME OF DAY SERVICE Low Wattage (A22) Sector: Commercial Description: Customer Charge per Month (Please see page 5-24.1) Available to any non-residential customer for single or three phase electric service supplied through one meter. DETERMINATION OF CUSTOMER BILLS Customer bills shall reflect energy charges (if applicable) based on customer's kWh usage, plus a customer charge (if applicable), plus demand charges (if applicable) based on customer's kW billing demand as defined. INTERIM RATE ADJUSTMENT A 4.49% Interim Rate Surcharge will be applied to rate components specified in the "Interim Rate Surcharge Rider." In addition, customer bills under this rate are subject to the following adjustments and/or charges. FUEL CLAUSE Bills are subject to the adjustments provided for in the Fuel Clause Rider. RESOURCE ADJUSTMENT Bills are subject to the adjustments provided for in the Conservation Improvement Program Adjustment Rider, the State Energy Policy Rate Rider, the Renewable Development Fund Rider, the Transmission Cost Recovery Rider, the Renewable Energy Standard Rider and the Mercury Cost Recovery Rider. ENVIRONMENTAL IMPROVEMENT RIDER Bills are subject to the adjustments provided for in the Environmental Improvement Rider.

431

Communication accepte: Healthy Buildings/IAQ'97 Washington DC, septembre 1997Communication accepte: Healthy Buildings/IAQ'97 Washington DC, septembre 1997 DISCRIMINATION OF VOLATILE ORGANIC COMPOUNDS  

E-Print Network [OSTI]

Communication acceptée: Healthy Buildings/IAQ'97 Washington DC, septembre 1997Communication acceptée: Healthy Buildings/IAQ'97 Washington DC, septembre 1997 DISCRIMINATION OF VOLATILE ORGANIC manuscript, published in "4th International Conference on Healthy Buildings'97, Washington : United States

Paris-Sud XI, Université de

432

Negative Feedback Facilitates Temperature Robustness in Biomolecular Circuit Dynamics  

E-Print Network [OSTI]

on circuit dynamics. Further, we find that eective negative feedback due to first-order degradation this goal of functional robustness have proceeded at multiple levels. At one level, there have been eorts, in the study of naturally occurring biomolecular circuits, robustness to the impor- tant environmental variable

Murray, Richard M.

433

Synthesis and Optimization of Reversible Circuits for Homogeneous Boolean Functions  

E-Print Network [OSTI]

Homogenous Boolean function is an essential part of any cryptographic system. The ability to construct an optimized reversible circuits for homogeneous Boolean functions might arise the possibility of building cryptographic system on novel computing paradigms such as quantum computers. This paper shows a factorization algorithm to synthesize such circuits.

Ahmed Younes

2007-10-02T23:59:59.000Z

434

Early Power Grid Verification Under Circuit Current Uncertainties  

E-Print Network [OSTI]

Early Power Grid Verification Under Circuit Current Uncertainties Imad A. Ferzli Department of ECE Eindhoven, The Netherlands lars@magma-da.com ABSTRACT As power grid safety becomes increasingly important in modern integrated circuits, so does the need to start power grid verifica- tion early in the design cycle

Najm, Farid N.

435

AUTOMATIC SYNTHESIS OF OPERATIONAL AMPLIFIERS BASED ON ANALYTIC CIRCUIT  

E-Print Network [OSTI]

a practical intermediate approach to automating op amp synthesis. It is based on analytic circuit models simulation to verify that indeed all the design specifications are met. This whole process has been automatedAUTOMATIC SYNTHESIS OF OPERATIONAL AMPLIFIERS BASED ON ANALYTIC CIRCUIT MODELS Han Young Koh, Carlo

O'Brien, James F.

436

The I.T. circuit certificate: training for the future  

Science Journals Connector (OSTI)

St. Edward's University Instructional Technology department developed a free certification program called the I.T. Circuit. The I.T. Circuit was developed to help faculty, staff, and students build the technology skills needed at home, school, or in ... Keywords: computer certification, computer competency, computer education, computer training, computer training program, training

Joana Trimble

2005-11-01T23:59:59.000Z

437

IMPACT OF DYNAMIC VOLTAGE SCALING (DVS) ON CIRCUIT OPTIMIZATION  

E-Print Network [OSTI]

and dynamic power, respectively. Both gate sizing and Dual-VT are design-time techniques, which are applied to the circuit at a fixed voltage. On the other hand, DVS is a run-time technique and implies that the circuit will be operating at a different voltage...

Esquit Hernandez, Carlos A.

2010-01-16T23:59:59.000Z

438

Electromagnetic Interference (EMI) Resisting Analog Integrated Circuit Design Tutorial  

E-Print Network [OSTI]

ELECTROMAGNETIC INTERFERENCE (EMI) RESISTING ANALOG INTEGRATED CIRCUIT DESIGN TUTORIAL A Thesis by JINGJING YU 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 2012 Major Subject: Electrical Engineering ELECTROMAGNETIC INTERFERENCE (EMI) RESISTING ANALOG INTEGRATED CIRCUIT DESIGN TUTORIAL A Thesis by JINGJING YU Submitted to the Office...

Yu, Jingjing

2012-10-19T23:59:59.000Z

439

Short-Circuit Modeling of a Wind Power Plant: Preprint  

SciTech Connect (OSTI)

This paper investigates the short-circuit behavior of a WPP for different types of wind turbines. The short-circuit behavior will be presented. Both the simplified models and detailed models are used in the simulations and both symmetrical faults and unsymmetrical faults are discussed.

Muljadi, E.; Gevorgian, V.

2011-03-01T23:59:59.000Z

440

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY Boot Camp Circuit  

E-Print Network [OSTI]

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY Boot Camp Circuit 12:00pm-12:50pm Adarell Body Pump 7:30am­8:30am Nina Boot Camp Circuit 8:00am­8:50am Adarell Body Pump 7:15am-8:15am Carla Body

Sharp, Kim

Note: This page contains sample records for the topic "dc circuit outage" 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

High density Integrated Optoelectronic Circuits for High Speed Photonic Microsystems  

E-Print Network [OSTI]

High density Integrated Optoelectronic Circuits for High Speed Photonic Microsystems K. Minoglou.minoglou@imel.demorkitos.gr Abstract. The study of high density integrated optoelectronic circuits involves the development of hybrid integration technologies and the generation of models for the optoelectronic devices. To meet these goals

Kouroupetroglou, Georgios

442

Module d'Electrotechnique ET2 Circuits magnetiques  

E-Print Network [OSTI]

A/Wb ou H-1 A.De Carvalho Circuits Magn´etiques #12;Force magn´eto motrice Posons : = N � I D´efinition est appel´ee force magn´eto motrice. Son unit´e est l' Amp`ere tour (A � t) A.De Carvalho Circuits

Histace, Aymeric

443

GPU-based parallelization for fast circuit optimization  

Science Journals Connector (OSTI)

The progress of GPU (Graphics Processing Unit) technology opens a new avenue for boosting computing power. This work is an attempt to exploit GPU for accelerating VLSI circuit optimization. We propose GPU-based parallel computing techniques and apply ... Keywords: GPU, VLSI circuit optimization, parallel computing

Yifang Liu; Jiang Hu

2009-07-01T23:59:59.000Z

444

A Low Noise Readout Circuit for Integrated Electrochemical Biosensor Arrays  

E-Print Network [OSTI]

A Low Noise Readout Circuit for Integrated Electrochemical Biosensor Arrays Jichun Zhang, Nicholas 48823, USA {zhangjic, tromblyn, mason}@egr.msu.edu Abstract This paper presents a low noise electrochemical interface circuit that is tuned to the needs of protein-based biosensor arrays and compatible

Mason, Andrew

445

High Resolution PV Power Modeling for Distribution Circuit Analysis  

SciTech Connect (OSTI)

NREL has contracted with Clean Power Research to provide 1-minute simulation datasets of PV systems located at three high penetration distribution feeders in the service territory of Southern California Edison (SCE): Porterville, Palmdale, and Fontana, California. The resulting PV simulations will be used to separately model the electrical circuits to determine the impacts of PV on circuit operations.

Norris, B. L.; Dise, J. H.

2013-09-01T23:59:59.000Z

446

COPLANAR DIGITAL MICROFLUIDICS USING STANDARD PRINTED CIRCUIT BOARD PROCESSES  

E-Print Network [OSTI]

COPLANAR DIGITAL MICROFLUIDICS USING STANDARD PRINTED CIRCUIT BOARD PROCESSES P.Y. Paik1 , V circuit board (PCB) and 3. Transport and mixing in an "open" microfluidic substrate. Similar to "soft-flow microfluidics, this work allows researchers to easily experiment with discrete-flow microfluidics (digital

Chakrabarty, Krishnendu

447

LOW VOLTAGE ANALOG CIRCUITS USING STANDARD CMOS TECHNOLOGY  

E-Print Network [OSTI]

LOW VOLTAGE ANALOG CIRCUITS USING STANDARD CMOS TECHNOLOGY Phillip E. Allen, Benjamin J. Blalock, and Gabriel A. Rincon School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta supply voltages in CMOS integrated circuits. As the channel lengths of CMOS technology decrease

Rincon-Mora, Gabriel A.

448

Conditioning circuit for temperature and strain measurement  

E-Print Network [OSTI]

be written as [4]; V. C, C?+Cz 1? Vying Ci ( Czd (3. 4) where V, ?: (Vj Vj ) (Vz Vj ). 26 Table I. Transistor aspect ratios for the CMOS switch Transistor Label Transistor Dimension (W:L) (p) Ml-M2 3:2 The gain error is thus seen to be proportional... value and form a volLage divider to drive node A, the gates of transistors Mll and VI12. A change Table II. Transistor aspect ratios for the DCMFB circuit Transistor Label Transistor Dimension (W:L) (p) Ml-M2 20:6 M3-M4 20:2 M5-M6 10:2 M7-M8 M...

Patel, Aashit Mahendra

2012-06-07T23:59:59.000Z

449

Integral testing of relays and circuit breakers  

SciTech Connect (OSTI)

Among all equipment types considered for seismic qualification, relays have been most extensively studied through testing due to a wide variation of their designs and seismic capacities. A temporary electrical discontinuity or ``chatter`` is the common concern for relays. A chatter duration of 2 milliseconds is typically used as an acceptance criterion to determine the seismic capability of a relay. Many electrical devices, on the other hand, receiving input signals from relays can safely tolerate a chatter level much greater than 2 ms. In Phase I of a test program, Brookhaven National Laboratory performed testing of many relay models using the 2-ms chatter criterion. In Phase II of the program, the factors influencing the relay chatter criterion, and impacts of relay chatter on medium and low voltage circuit breakers and lockout relays were investigated. This paper briefly describes the Phase II tests and presents the important observations.

Bandyopadhyay, K.K.

1993-12-31T23:59:59.000Z

450

Theory of degenerate three-wave mixing using circuit QED in solid-state circuits  

SciTech Connect (OSTI)

We study the theory of degenerate three-wave mixing and the generation of squeezed microwaves using circuit quantum electrodynamics in solid state circuits. The Hamiltonian for degenerate three-wave mixing, which seemed to be given phenomenologically in quantum optics, is derived by quantum mechanical calculations. The nonlinear medium needed in three-wave mixing is composed of a series of superconducting charge qubits which are located inside two superconducting transmission-line resonators. Here, the multiqubit ensemble is present to enhance the effective coupling constant between the two modes in the transmission-line resonators. In the squeezing process, the qubits are kept in their ground states so that their decoherence does not corrupt the squeezing. The main obstacle preventing a large squeezing efficiency is the decay rate of the transmission-line resonator.

Cao, Ye [Key Laboratory of Atomic and Molecular Nanosciences and Department of Physics, Tsinghua University, Beijing 100084 (China); Huo, Wen Yi [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China); Ai, Qing [Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 (China); Long, Gui Lu [Key Laboratory of Atomic and Molecular Nanosciences and Department of Physics, Tsinghua University, Beijing 100084 (China); Tsinghua National Laboratory For Information Science and Technology, Beijing 100084 (China)

2011-11-15T23:59:59.000Z

451

SAT-based Verification for Analog and Mixed-signal Circuits  

E-Print Network [OSTI]

The wide application of analog and mixed-signal (AMS) designs makes the verification of AMS circuits an important task. However, verification of AMS circuits remains as a significant challenge even though verification techniques for digital circuits...

Deng, Yue

2012-07-16T23:59:59.000Z

452

Ribozyme-based "insulator parts" buffer synthetic circuits from genetic context  

E-Print Network [OSTI]

Synthetic genetic programs are built from circuits that integrate sensors and implement temporal control of gene expression1–4. Transcriptional circuits are layered by using promoters to carry the signal between circuits. ...

Lou, Chunbo

453

Proposal of DC shield reactor type superconducting fault current limiter  

Science Journals Connector (OSTI)

Saturated DC reactor type superconducting fault current limiter (SFCL) had been proposed two years ago. It was classified to rectifier type SFCL. The changing inductance value with the operating mode has superior characteristics to reduce voltage sag during step increase of the load current. But it has the disadvantage of its weight. In this paper, rectifier type SFCL with shielded reactor has been proposed. The reactor which has superconducting ring or tube inside its winding is substituted to the DC link of the rectifier. The configuration looks like an air core transformer with secondary short winding. When the current through the bulk shield-ring reaches to a certain level, the flux penetrates to the shield body and finite impedance appears in the primary winding. In other words, when the surface flux density exceeds its critical flux density, the flux penetrates into the bulk superconductor, and increases equivalent inductance. The equivalent transient resistance of the shield was represented as a function of exponential of the time. Using this equivalent transient resistance, the transient impedance was expressed. The transient wave analysis using EMTDC (electro-magnetic transients in DC systems) has been described. Simulated waveforms are shown considering the source inductance, the leakage inductance, the coupling coefficient and the forward voltage drop of the semiconductor. And voltage sag was also investigated with 50% step load increase. Preliminary design was also performed. The coil size and number of turns are designed to obtain adequate inductance for the current limitation, and the central magnetic field of the coils are calculated. There is optimal aspect ratio to minimize the magnetic field with restriction in outer diameter of the coil.

Itsuya Muta; Tsutomu Hoshino; Khosru Mohammad Salim; Akio Kawasaki; Taketsune Nakamura; Masato Yamada

2004-01-01T23:59:59.000Z

454

2 IEEE TRANSACTIONS ON CIRCUIT THEORY, VOL. CT-16, NO. 1, BBBRUARY 1969 The Modified Circuit Matrix of an &Port  

E-Print Network [OSTI]

of an &Port Network and Its Applications KRISIINAIYAN THULASIRAMRN AND VEMPATI G. I Abstracf-Certain properties of the modified circuit matrix useful in the analysis and synthesis of n-port pseudoseries connection of n-port networks. The use- fulness of the concept of the modified circuit matrix

Thulsiraman, Krishnaiyan

455

468 IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, VOL. 5, NO. 5, OCTOBER 2011 Photodiode Circuits for Retinal Prostheses  

E-Print Network [OSTI]

468 IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, VOL. 5, NO. 5, OCTOBER 2011 Photodiode, and Daniel V. Palanker Abstract--Photodiode circuits show promise for the devel- opment of high, existing descriptions of the complex optoelectronic in- teraction between light, photodiode

Palanker, Daniel

456

DC Resistivity Survey (Wenner Array) | Open Energy Information  

Open Energy Info (EERE)

Wenner Array) Wenner Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Wenner Array) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Vertical Electrical Sounding Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

457

DC Resistivity Survey (Pole-Dipole Array) | Open Energy Information  

Open Energy Info (EERE)

Pole-Dipole Array) Pole-Dipole Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Pole-Dipole Array) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Profiling Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

458

DC Resistivity Survey (Schlumberger Array) | Open Energy Information  

Open Energy Info (EERE)

Schlumberger Array) Schlumberger Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Schlumberger Array) Details Activities (2) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Vertical Electrical Sounding Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

459

Heteroepitaxial Ge-on-Si by DC magnetron sputtering  

SciTech Connect (OSTI)

The growth of Ge on Si(100) by DC Magnetron Sputtering at various temperatures is studied by Spectroscopic Ellipsometry and Transmission Electron Microscopy. Smooth heteroepitaxial Ge films are prepared at relatively low temperatures of 380°C. Typical Stransky-Krastanov growth is observed at 410°C. At lower temperatures (320°C), films are essentially amorphous with isolated nanocrystallites at the Si-Ge interface. A minor oxygen contamination at the interface, developing after ex-situ oxide removal, is not seen to hinder epitaxy. Compensation of dislocation-induced acceptors in Ge by sputtering from n-doped targets is proposed.

Steglich, Martin; Schrempel, Frank; Füchsel, Kevin; Kley, Ernst-Bernhard [Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University, Albert-Einstein-Straße 15, 07745 Jena (Germany)] [Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University, Albert-Einstein-Straße 15, 07745 Jena (Germany); Patzig, Christian; Berthold, Lutz; Höche, Thomas [Fraunhofer Institute for Mechanics of Materials IWM, Walter-Hülse-Straße 1, 06120 Halle (Germany)] [Fraunhofer Institute for Mechanics of Materials IWM, Walter-Hülse-Straße 1, 06120 Halle (Germany); Tünnermann, Andreas [Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University, Albert-Einstein-Straße 15, 07745 Jena (Germany) [Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University, Albert-Einstein-Straße 15, 07745 Jena (Germany); Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Str. 7, 07745 Jena (Germany)

2013-07-15T23:59:59.000Z

460

The dc modeling program (DCMP): Version 2. 0  

SciTech Connect (OSTI)

In this project one of the main objectives was the refinement of tools for the study of HVDC systems. The original software was prepared in project RP1964-2 (EL-4365) as power flow and stability program models for HVDC systems. In this project new modeling capabilities were added to both the power flow and stability models. Additionally, the HVDC specific model capabilities were integrated into a new program, termed the Standalone program, for use in the development and testing of HVDC models. This manual provides technical background for programmers and those interested in understanding, augmenting or transporting the dc models.

Chapman, D.G. (Manitoba HVDC Research Centre, Winnipeg, MB (Canada))

1990-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "dc circuit outage" 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

Equivalent Circuit Analysis of Harmonic Distortions in Photodiode  

E-Print Network [OSTI]

and C. Boisrobert, “Photodiode for coherent detection:Harmonic Distortions in Photodiode H. Jiang and P. K. L. Yu,coef?cient S 11 of the photodiode under dc illumination.

Yu, Paul K.L.

1998-01-01T23:59:59.000Z

462

Biophysical neuron and synapse circuits in recongurable and scaleable analog VLSI  

E-Print Network [OSTI]

firing patterns of a compact vlsi cortical neuron circuit”.firing. Appendix A NeuroDyn A.1 Derivation of the circuit

Yu, Theodore Ernest

2012-01-01T23:59:59.000Z

463

1. Boolean Functions and Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  

E-Print Network [OSTI]

Contents 1. Boolean Functions and Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Boolean Functions and Formulas . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Circuit

Kranakis, Evangelos

464

The choice of substation electric connection circuits: a unified or an individual approach?1  

Science Journals Connector (OSTI)

Typical substation electric connection circuits, used at the present ... analyzed. Some versions of the use of substation distributor circuits for controlling electric network modes ... analyzed. Recommendations ...

V. P. Budovskii; V. V. Ushakov

2011-07-01T23:59:59.000Z

465

E-Print Network 3.0 - arsenide integrated circuit Sample Search...  

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

-3:40pm Summary: 02139 A novel epitaxy-on-electronics process for fabricating optoelectronic integrated circuits (OE- ICs... integrated circuit technology base, this...

466

Home News News Archives Fab News "Flexible" Circuit Boards in Development  

E-Print Network [OSTI]

Home News News Archives Fab News "Flexible" Circuit Boards in Development Contact Us use silicon in integrated circuits that are fully foldable and stretchable." [ Back ] Home News

Rogers, John A.

467

News From the D.C. Office: Monitored Savings from Energy-Efficient Lighting  

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

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Monitored Savings from Energy-Efficient Lighting in D.C. Office More on the DC Office efficiency up-grade: Office Equipment: Part 1, Part 2 Figure 1: Lighting energy use profile for a typical exterior office. Berkeley Lab's office in Washington, D.C. is located a few blocks from DOE headquarters, in a five-year-old office building constructed mainly for lease to Federal agencies and their contractors. Despite its recent vintage, the building's standard lighting specifications were far from today's best, cost-effective practice. In designing the build-out plans for offices and meeting rooms in our 7,500-square-foot suite, we wanted to showcase some of the energy-efficient lighting and office equipment developed for DOE's Building Technologies

468

Thermally-induced voltage alteration for integrated circuit analysis  

DOE Patents [OSTI]

A thermally-induced voltage alteration (TIVA) apparatus and method are disclosed for analyzing an integrated circuit (IC) either from a device side of the IC or through the IC substrate to locate any open-circuit or short-circuit defects therein. The TIVA apparatus uses constant-current biasing of the IC while scanning a focused laser beam over electrical conductors (i.e. a patterned metallization) in the IC to produce localized heating of the conductors. This localized heating produces a thermoelectric potential due to the Seebeck effect in any conductors with open-circuit defects and a resistance change in any conductors with short-circuit defects, both of which alter the power demand by the IC and thereby change the voltage of a source or power supply providing the constant-current biasing. By measuring the change in the supply voltage and the position of the focused and scanned laser beam over time, any open-circuit or short-circuit defects in the IC can be located and imaged. The TIVA apparatus can be formed in part from a scanning optical microscope, and has applications for qualification testing or failure analysis of ICs.

Cole, Jr., Edward I. (Albuquerque, NM)

2000-01-01T23:59:59.000Z

469

Data:34a8b7fa-422b-4dc6-ac92-07f697f0bc22 | Open Energy Information  

Open Energy Info (EERE)

fa-422b-4dc6-ac92-07f697f0bc22 fa-422b-4dc6-ac92-07f697f0bc22 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: El Paso Electric Co Effective date: 2012/05/01 End date if known: Rate name: DELETE Sector: Commercial Description: This rider is closed to all new service applications. For domestic electric water heating service (swimming pool, commercial dishwasher water heating and water heating utilized for space heating excluded). The service shall be metered on a circuit which shall include only water heating elements and exclude all other services. Periods of electric supply service may be scheduled to conform to off-peak conditions of the Company's system. The Company reserves the right to change the off-peak periods of supply to meet the changing off-peak conditions of its system. The Company, at its option, will furnish and connect to the Customer's wiring and retain ownership of a time switch or suitable device to regulate the hours of use.

470

Data:Bd93a3eb-e4ae-4727-9e2f-8ec5dc62ac04 | Open Energy Information  

Open Energy Info (EERE)

3a3eb-e4ae-4727-9e2f-8ec5dc62ac04 3a3eb-e4ae-4727-9e2f-8ec5dc62ac04 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Eastern Illinois Elec Coop Effective date: 2009/01/01 End date if known: Rate name: RATE OL-1 OUTDOOR LIGHTING SERVICE 100-watt Sodium Vapor Sector: Lighting Description: Available to all member/owners for dusk-to-dawn outdoor lighting in close proximity to existing overhead secondary circuits. Should the member/owner request a light at a location where a transformer must be provided for just the light, i.e. where there is not a metered service off of the transformer serving the light, there will be an additional charge of $6.00 per month for this transformer. This charge will be dropped if a metered service is added to the transformer or this charge will be added if a metered service is disconnected and the security light is left in service.

471

Data:61c3ee57-dc18-4234-90e5-9635ef4ee251 | Open Energy Information  

Open Energy Info (EERE)

c3ee57-dc18-4234-90e5-9635ef4ee251 c3ee57-dc18-4234-90e5-9635ef4ee251 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Cimarron Electric Coop Effective date: 2008/10/01 End date if known: Rate name: Billboard & Commercial Lighting, Rate 19 Sector: Lighting Description: AVAILABILITY: Available to accounts for the purpose of lighting billboards, commercial signs, or parking areas. This rate is for lighting only and will be metered separately from other loads on the premises. It will be the customers responsibility to establish a separate electrical circuit for metering these loads and installing the necessary equipment so that energy is used only during off-peak hours. To qualify for this rate, all lights connected will operate a minimum of six (6) hours per day during the off-peak periods.

472

Data:7158c02d-c0b8-43c9-9e07-403564cc99ee | Open Energy Information  

Open Energy Info (EERE)

c02d-c0b8-43c9-9e07-403564cc99ee c02d-c0b8-43c9-9e07-403564cc99ee No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Edmond, Oklahoma (Utility Company) Effective date: 2009/09/30 End date if known: Rate name: Additional charges-Extension of Secondary Circuit and Wood Pole 30 Sector: Commercial Description: Source or reference: http://edmondok.com/DocumentCenter/Home/View/442 Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service Voltage Category:

473

Data:Afc7b744-299c-412a-930d-dd71e575dc68 | Open Energy Information  

Open Energy Info (EERE)

Afc7b744-299c-412a-930d-dd71e575dc68 Afc7b744-299c-412a-930d-dd71e575dc68 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: GreyStone Power Corporation Effective date: 2008/11/01 End date if known: Rate name: Outdoor Lighting Consumer Owned Non Metered Controlled 2501-3000 W Sector: Lighting Description: The term "consumer-owned system" means complete ownership by the consumer of all facilities (including poles, fixtures, circuits, and disconnect devices) up to a point of connection to the Cooperative's supply lines. The consumer shall provide (a) a suitable mounting and wiring for Cooperative's photo-electric receptacle and (b) a weatherproof enclosure, if needed, for any Cooperative-supplied relay. The Cooperative will supply the necessary photo-electric

474

Analysis of variable-frequency currents superimposed on DC currents in asynchronous HVDC Links in stressing turbine-generator-exciter shafts  

SciTech Connect (OSTI)

Ripple currents on the DC side of both HVDC asynchronous and synchronous Links can excite in some circumstances onerous torsional vibrations in large steam generator shafts. The problem has assumed importance in recent months on account of the HVDC Link between Scotland and Northern Ireland going ahead, on account of the proposed Eire/Wales Link, because AC/DC/AC couplers are to be installed to interconnect the East and West European Grid Systems, and because resonances have been observed on machines in close proximity to AC/DCIAC couplers and HVDC Links. This paper discusses and analyses excitation of shaft torsional vibrations in steam turbine-generator-exciter shafts in close proximity to HVDC converter stations by variable-frequency ripple currents superimposed on DC currents in asynchronous Links. It presents technical knowledge not arranged for convenient reference heretofore in studying possible excitation of turbine-generator-v/ exciter shaft torsional vibrations by non-characteristic HVDC converter harmonic currents if a machine should be considered to be at risk. Shaft torques in multi-machine networks are evaluated by proportioning HVDC Link disturbance currents to each machine at risk using system network data, generator data and fault analysis data considering frequency dependence of the system parameters. This scaling factor is calculated for different scenarios of system operation and load. Equivalent circuits for the synchronous generator are employed appropriately to correlate HVDC Link disturbance current impressed on the generator stator with s state torque excitation from which magnitude of turbine-generator-exciter shaft torque is deduced.

Hammons, T.J.; Bremner, J.J. [Univ. of Glasgow (United Kingdom)] [Univ. of Glasgow (United Kingdom)

1995-03-01T23:59:59.000Z

475

High density electronic circuit and process for making  

DOE Patents [OSTI]

High density circuits with posts that protrude beyond one surface of a substrate to provide easy mounting of devices such as integrated circuits. The posts also provide stress relief to accommodate differential thermal expansion. The process allows high interconnect density with fewer alignment restrictions and less wasted circuit area than previous processes. The resulting substrates can be test platforms for die testing and for multi-chip module substrate testing. The test platform can contain active components and emulate realistic operational conditions, replacing shorts/opens net testing.

Morgan, William P. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

476

Washington, D.C. and Indiana: Allison Hybrid Technology Achieves Commercial Success  

Office of Energy Efficiency and Renewable Energy (EERE)

EERE partner, Allison Transmission, Inc., has achieved commercial success in the greater Washington, D.C. area, with 1,480 hybrid buses on the road.

477

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network [OSTI]

Appliance type Standard technology DC-internal best technology Lighting Incandescent, fluorescent, LED Incandescent Electronic Heating Heater Electric resistance Cooling Motor (& compressor,

Garbesi, Karina

2012-01-01T23:59:59.000Z

478

An Active Filter Approach to the Reduction of the DC Link Capacitor  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

479

Design and Modeling of Centralized Distribution Network for the DC House Project.  

E-Print Network [OSTI]

?? This thesis focuses on the design, modeling, simulation, and performance evaluation of Centralized Distribution Network for the DC House Project. Power System Computer Aided… (more)

Bassi, Harpreet S.

2013-01-01T23:59:59.000Z

480

A Segmented Drive Inverter Topology with a Small DC Bus Capacitor  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

Note: This page contains sample records for the topic "dc circuit outage" 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

Screening technology reduces ash in spiral circuits  

SciTech Connect (OSTI)

In 2006, the James River Coal Co. selected the Stack Sizer to remove the minus 100 mesh high ash clay fraction from the clean coal spiral product circuits at the McCoy-Elkhorn Bevins Branch prep plant and at the Blue Diamond Leatherwood prep plant in Kentucky. The Stack Sizer is a multi-deck, high-frequency vibrating screen capable of separations as fine as 75 microns when fitted with Derrick Corp.'s patented high open area urethane screen panels. Full-scale lab tests and more than 10 months of continuous production have confirmed that the Stack Sizer fitted with Derrick 100 micron urethane screen panels consistently produces a clean coal fraction that ranges from 8 to 10% ash. Currently, each five-deck Stack Sizer operating at the Bevins Branch and Leatherwood prep plants is producing approximately 33 tons per hour of clean coal containing about 9% ash. This represents a clean coal yield of about 75% and an ash reduction of about 11% from the feed slurry. 3 figs. 2 tabs.

Brodzik, P. [Derrick Corp., Buffalo, NY (United States)

2007-05-15T23:59:59.000Z

482

DOE - Office of Legacy Management -- Electro Circuits Inc - CA 08  

Office of Legacy Management (LM)

Electro Circuits Inc - CA 08 Electro Circuits Inc - CA 08 FUSRAP Considered Sites Site: Electro Circuits, Inc. (CA.08 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: 401 East Green Street , Pasadena , California CA.08-1 Evaluation Year: 1994 CA.08-2 Site Operations: Conducted ultrasonic tests on uranium ingots in the early 1950s. CA.08-3 CA.08-4 Site Disposition: Eliminated - Potential for contamination remote based on limited operations at the site CA.08-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium Metal CA.08-3 Radiological Survey(s): No Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to Electro Circuits, Inc. CA.08-1 - AEC Memorandum; Parsegian to Musser; Subject: Transfer of

483

Scaling down DNA circuits with competitive neural networks  

Science Journals Connector (OSTI)

...only. It is straightforward to enforce competition in synthetic DNA circuits, because strands with common domains can easily...have presented two implementations of the WTA effect in synthetic DNA systems. While they both use autocatalysis and competition...

2013-01-01T23:59:59.000Z

484

DNA walker circuits: computational potential, design, and verification  

E-Print Network [OSTI]

stochastic model of DNA walker `circuits' based on experimental data, and demonstrate the merit of using the signal that opens up the path labelled by ¬X is added. (2) The nicking enzyme (E) attaches to the walker

Oxford, University of

485

DNA walker circuits: computational potential, design, and verification  

E-Print Network [OSTI]

stochastic model of DNA walker `circuits' based on experimental data, and demonstrate the merit of using strands, the selected track becomes unblocked. (2) The nicking enzyme (E) attaches to the walker

Oxford, University of

486

Specification of photonic circuits using quantum hardware description language  

Science Journals Connector (OSTI)

...environments/modelling languages, such as Modelica-[16] QHDL parser that computes the...computing a circuit expression from the Modelica specification, written in, for example...http://www.gpleda.org . 16 The Modelica Association. 1996 Modelica. See http...

2012-01-01T23:59:59.000Z

487

Retroactivity, modularity, and insulation in synthetic biology circuits  

E-Print Network [OSTI]

A central concept in synthetic biology is the reuse of well-characterized modules. Modularity simplifies circuit design by allowing for the decomposition of systems into separate modules for individual construction. Complex ...

Lin, Allen

2011-01-01T23:59:59.000Z

488

Graphene-based plasmonic photodetector for photonic integrated circuits  

Science Journals Connector (OSTI)

We developed a planar-type graphene-based plasmonic photodetector (PD) for the development of all-graphene photonic-integrated-circuits (PICs). By configuring the graphene plasmonic...

Kim, Jin Tae; Yu, Young-Jun; Choi, Hongkyw; Choi, Choon-Gi

2014-01-01T23:59:59.000Z

489

Advanced modeling of planarization processes for integrated circuit fabrication  

E-Print Network [OSTI]

Planarization processes are a key enabling technology for continued performance and density improvements in integrated circuits (ICs). Dielectric material planarization is widely used in front-end-of-line (FEOL) processing ...

Fan, Wei, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

490

Algorithms for VLSI Circuit Optimization and GPU-Based Parallelization  

E-Print Network [OSTI]

processing unit (GPGPU) technology provides massive parallel computing power. This research turns the complex computation task of circuit optimization into many subtasks processed by parallel threads. The proposed task partitioning and scheduling methods take...

Liu, Yifang

2010-07-14T23:59:59.000Z

491

Characterization of process variability and robust optimization of analog circuits  

E-Print Network [OSTI]

Continuous scaling of CMOS technology has enabled dramatic performance enhancement of CMOS devices and has provided speed, power, and density improvement in both digital and analog circuits. CMOS millimeter-wave applications ...

Lim, Daihyun, 1976-

2008-01-01T23:59:59.000Z

492

Case studies on lithography-friendly vlsi circuit layout  

E-Print Network [OSTI]

lithography-friendly. In this work, we intend to implement these modifications as a series of perturbations on the initial layout generated by the CAD tool for the circuit. To implement these changes we first calculate the feature variations offline...

Shah, Pratik Jitendra

2009-05-15T23:59:59.000Z

493

Genetic Circuit Performance under Conditions Relevant for Industrial Bioreactors  

E-Print Network [OSTI]

Synthetic genetic programs promise to enable novel applications in industrial processes. For such applications, the genetic circuits that compose programs will require fidelity in varying and complex environments. In this ...

Moser, Felix

494

Bounded Dataflow Networks and Latency-Insensitive Circuits  

E-Print Network [OSTI]

We present a theory for modular refinement of Synchronous Sequential Circuits (SSMs) using Bounded Dataflow Networks (BDNs). We provide a procedure for implementing any SSM into an LI-BDN, a special class of BDNs with some ...

Vijayaraghavan, Muralidaran

495

Design automation and analysis of three-dimensional integrated circuits  

E-Print Network [OSTI]

This dissertation concerns the design of circuits and systems for an emerging technology known as three-dimensional integration. By stacking individual components, dice, or whole wafers using a high-density electromechanical ...

Das, Shamik, 1977-

2004-01-01T23:59:59.000Z

496

Stochastic artificial retinas: algorithm, optoelectronic circuits, and implementation  

E-Print Network [OSTI]

Stochastic artificial retinas: algorithm, optoelectronic circuits, and implementation Philippe tasks in the presence of discontinuities, dedicated optoelectronic hardware to implement thermal motion by photodetection of speckles, and hybrid architectures that combine optoelectronic, asynchronous

Boyer, Edmond

497

Capturing collective conflict dynamics with sparse social circuits  

E-Print Network [OSTI]

We discuss a set of computational techniques, called Inductive Game Theory, for extracting strategic decision-making rules from time series data and constructing probabilistic social circuits. We construct these circuits by connecting component individuals and groups with strategies in a game and propose an inductive approach to reconstructing the edges. We demonstrate this approach with conflict behavior in a society of pigtailed macaques by identifying significant patterns in decision-making by individuals. With the constructed circuit, we then capture macroscopic features of the system that were not specified in the construction of the initial circuit, providing a mapping between individual level behaviors to collective behaviors over the scale of the group. We extend on previous work in Inductive Game Theory by more efficiently searching the space of possible strategies by grouping individuals into socially relevant sets to produce a more efficient, parsimonious specification of the underlying interaction...

Lee, Edward; Flack, Jessica; Krakauer, David

2014-01-01T23:59:59.000Z

498

Synthetic biology: Understanding biological design from synthetic circuits  

E-Print Network [OSTI]

An important aim of synthetic biology is to uncover the design principles of natural biological systems through the rational design of gene and protein circuits. Here, we highlight how the process of engineering biological ...

Mukherji, Shankar

499

Laser micromachining of active and passive photonic integrated circuits  

E-Print Network [OSTI]

This thesis describes the development of advanced laser resonators and applications of laser-induced micromachining for photonic circuit fabrication. Two major advantages of laser-induced micromachining are direct patterning ...

Cho, Seong-Ho, 1966-

2004-01-01T23:59:59.000Z

500

A method for gridless routing of printed circuit boards  

Science Journals Connector (OSTI)

The introduction of fine-line technologies to printed circuit board design and manufacture has stretched most previous automatic routing algorithms to the limit. A different approach designed specifically to meet the present needs is detailed.

A. C. Finch; K. J. Mackenzie; G. J. Balsdon; G. Symonds

1985-06-01T23:59:59.000Z