Improving Outage Performance: Outage Optimization Process
LaPlatney, Jere J. [AREVA NP (United States)
2006-07-01T23:59:59.000Z
Planned outage performance is a key measure of how well an Nuclear Power Plant (NPP) is operated. Performance during planned outages strongly affects virtually all of a plant's performance metrics. In recognition of this fact, NPP operators worldwide have and continue to focus on improving their outage performance. The process of improving outage performance is commonly referred to as 'Outage Optimization' in the industry. This paper starts with a summary of the principles of Outage Optimization. It then provides an overview of a process in common use in the USA and elsewhere to manage the improvement of planned outages. The program described is comprehensive in that it involves managing improvement in both the Preparation and Execution phases of outage management. (author)
Outage Optimum Routing for Wireless Networks
Garcia-Luna-Aceves, J.J.
2011-01-01T23:59:59.000Z
Outage Optimum Routing for Wireless Networks B. Amiri, H. R.of wireless network outage probability in a fadinguse analytical calculation of outage probability in wireless
Shopping for outage management systems
Chou, Y.C.; Konneker, L.K.; Watkins, T.R.
1995-12-31T23:59:59.000Z
Customer service is becoming increasingly important to electric utilities. Outage management is an important part of customer service. Good outage management means quickly responding to outages and keeping customers informed about outages. Each outage equals lost customer satisfaction and lost revenue. Outage management is increasingly important because of new competition among utilities for customers, pressure from regulators, and internal pressure to cut costs. The market has several existing software products for outage management. How does a utility judge whether these products satisfy their specific needs? Technology is changing rapidly to support outage management. Which technology is proven and cost-effective? The purpose of this paper is to outline the procedure for evaluating outage management systems, and to discuss the key features to look for. It also gives our opinion of the features that represent state of the art. This paper will not discuss specific products or list vendors names.
OutageMapURL Phases Energy Services
OutageMapURL Phases Energy Services County Electric Power Assn http outages county org A N Electric Coop Virginia AEP Generating Company https www aepaccount com zipr...
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 July 9, 2012 (0 Comments) The projectb filesystem had a hardware failure that...
Cascading Power Outages Propagate Locally in an Influence Graph that is not the Actual Grid Topology
Hines, Paul D H; Rezaei, Pooya
2015-01-01T23:59:59.000Z
In a cascading power transmission outage, component outages propagate non-locally; after one component outages, the next failure may be very distant, both topologically and geographically. As a result, simple models of topological contagion do not accurately represent the propagation of cascades in power systems. However, cascading power outages do follow patterns, some of which are useful in understanding and reducing blackout risk. This paper describes a method by which the data from many cascading failure simulations can be transformed into a graph-based model of influences that provides actionable information about the many ways that cascades propagate in a particular system. The resulting "influence graph" model is Markovian, since component outage probabilities depend only on the outages that occurred in the prior generation. To validate the model we compare the distribution of cascade sizes resulting from n-2 contingencies in a 2896 branch test case to cascade sizes in the influence graph. The two dist...
Outage probability at finite SNR
Akçaba, Cemal
2004-01-01T23:59:59.000Z
In this thesis, we present a technique to reduce the outage probability of a single user multiple input multiple output (MIMO) channel when a sub-optimal transceiver architecture is used. We show that in slow-fading ...
Outage Behavior of Selective Relaying Schemes
Woradit, Kampol
Cooperative diversity techniques can improve the transmission rate and reliability of wireless networks. For systems employing such diversity techniques in slow-fading channels, outage probability and outage capacity are ...
Internet Outages, the Eyewitness Accounts: Analysis of the Outages Mailing List
Sekar, Vyas
Internet Outages, the Eyewitness Accounts: Analysis of the Outages Mailing List Ritwik Banerjee and outages is critical to the "health" of the Internet infrastructure. Unfortunately, our ability to analyze. In this paper, we leverage a somewhat unconventional dataset to analyze Internet reliability--the outages
Congestion Analysis during Outage, Congestion Treatment and Outage Recovery for simple GPRS networks
Firenze, Università degli Studi di
Congestion Analysis during Outage, Congestion Treatment and Outage Recovery for simple GPRS overlap- ping. In particular, we consider that one of the two cells is affected by an outage and we some network resources become suddenly un- available due to malfunctions. The occurrence of an outage
Evidences Behind Skype Outage Dario Rossi 1
Evidences Behind Skype Outage Dario Rossi 1 , Marco Mellia 2 , Michela Meo 2 1 TELECOM Paris amongst active peers. During August 2007, an unexpected outage hit the Skype overlay, yielding signaling during the outage. In particular, we focus on the signaling traffic before, during and after
Outage Probability Under Channel Distribution Uncertainty
Loyka, Sergey
Outage Probability Under Channel Distribution Uncertainty Ioanna Ioannou, Charalambos D. Charalambous and Sergey Loyka Abstract--Outage probability of a class of block-fading (MIMO) channels outage probability defined as min (over the input distribution) -max (over the channel distribution class
ADMIN SYSTEMS OUTAGE NOTIFICATION PROCESS (2/13/07 Marcia)
Kunkle, Tom
l .(, '- ADMIN SYSTEMS OUTAGE NOTIFICATION PROCESS (2/13/07 Marcia) STANDARD OUTAGE TIMES (NO of month rd ADMIN SERVERS (Wando/Cooper): Midnight - 8PM Sunday of month SCHEDULED OUTAGES DURING NON-STANDARD OUTAGE TIMES: Requestor sends outage request to "ITOutageRequest" for approval at least 5 business days
Predictive Compensation for Communication Outages in Networked Control Systems
Johansson, Karl Henrik
Predictive Compensation for Communication Outages in Networked Control Systems Erik Henriksson Henrik Sandberg Karl Henrik Johansson Abstract-- A predictive outage compensator co time instance, the predictive outage compensator suggests a replacement command based on the history
Rateless Code Based Multimedia Multicasting with Outage Probability Constraints
Blostein, Steven D.
Rateless Code Based Multimedia Multicasting with Outage Probability Constraints Wei Sheng, Wai encoding transmission (PET)-based packetization structure [1] combined with rateless codes. Outage is capable of minimizing the transmission cost while simultaneously guaranteeing outage prob- ability
Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph
2003-01-01T23:59:59.000Z
M. and D. Keane (1995). Outage Cost Estimation Guidebook.Figure 5-1. Predicted Outage Cost By Region and DurationFigure 5-2. Predicted Outage Cost By Region and Duration
Enserink, Scott Warren
2012-01-01T23:59:59.000Z
of Outage Probability . . . . . . . . . . . . . . . . . .vii OutageResults Using the LLN Outage Probability
Germain, Shawn St; Farris, Ronald; Whaley, April M; Medema, Heather; Gertman, David
2014-09-01T23:59:59.000Z
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.
Managing turbine-generator outages by computer
Reinhart, E.R. [Reinhart and Associates, Inc., Austin, TX (United States)
1997-09-01T23:59:59.000Z
This article describes software being developed to address the need for computerized planning and documentation programs that can help manage outages. Downsized power-utility companies and the growing demand for independent, competitive engineering and maintenance services have created a need for a computer-assisted planning and technical-direction program for turbine-generator outages. To meet this need, a software tool is now under development that can run on a desktop or laptop personal computer to assist utility personnel and technical directors in outage planning. Total Outage Planning Software (TOPS), which runs on Windows, takes advantage of the mass data storage available with compact-disc technology by archiving the complete outage documentation on CD. Previous outage records can then be indexed, searched, and viewed on a computer with the click of a mouse. Critical-path schedules, parts lists, parts order tracking, work instructions and procedures, custom data sheets, and progress reports can be generated by computer on-site during an outage.
On The Outage Capacity Distribution of Correlated Keyhole MIMO Channels
Loyka, Sergey
On The Outage Capacity Distribution of Correlated Keyhole MIMO Channels G. Levin and S. Loyka for the instantaneous SNR and outage capacity distributions of a spatially correlated keyhole MIMO channel are given diversity channel with a single Tx (Rx) and multiple Rx (Tx) antennas. The outage capacity at low outage
Fluid Model of the Outage Probability in Sectored Wireless Networks
Coupechoux, Marceau
Fluid Model of the Outage Probability in Sectored Wireless Networks Jean-Marc Kelif France Telecom to derive the global outage probability and the spatial outage probability, which depends on the location the derivation of outage probabilities, capacity evaluation and then, the definition of Call Admission Control
Reduced-Order Predictive Outage Compensators for Networked Systems
Johansson, Karl Henrik
Reduced-Order Predictive Outage Compensators for Networked Systems Erik Henriksson Henrik Sandberg communication outage of several samples in situations when the radio environment is noisy and low transmission power is desirable. We propose a method to compensate for outages by introducing a predictive outage
Outage Mutual Information of Space-Time MIMO Channels
Giannakis, Georgios
Outage Mutual Information of Space-Time MIMO Channels Zhengdao Wang Georgios B. Giannakis Dept) leads to an increase in outage rate approximately equal to min(M, N), where M and N denote the number information outage probability. Finding this outage probability, as a function of R, is therefore equivalent
Sung, Youngchul
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 11, NO. 10, OCTOBER 2012 3561 Outage Probability and Outage-Based Robust Beamforming for MIMO Interference Channels with Imperfect Channel State Information, and H. Vincent Poor Fellow, IEEE Abstract--In this paper, the outage probability and outage- based beam
Characteristics and trends in a National Study of Consumer Outage Costs
Lawton, Leora; Eto, Joseph H.; Katz, Aaron; Sullivan, Michael
2003-01-01T23:59:59.000Z
Conference Lawton, Eto Katz & Sullivan Consumer Outage CostsDatabase of Customer Outage Costs. Forthcoming. Sullivan, M.and D. Keane. 1995. Outage Cost Estimation Guidebook.
Resource allocation for semi-elastic applications with outage constraints in cellular networks
Yang, C; Jordan, S
2015-01-01T23:59:59.000Z
Liang, and S. -G. H¨aggman, “Outage probability in GSM- GPRSand rate control with outage constraints in CDMA wirelessand P. Spasojevic, “Service outage based power and rate
Contingency Analysis of Cascading Line Outage Events
Thomas L Baldwin; Magdy S Tawfik; Miles McQueen
2011-03-01T23:59:59.000Z
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.
Outage management and health physics issue, 2007
Agnihotri, Newal (ed.)
2007-05-15T23:59:59.000Z
The focus of the May-June issue is on outage management and health physics. Major articles/reports in this issue include: India: a potential commercial opportunity, a U.S. Department of Commerce Report, by Joe Neuhoff and Justin Rathke; The changing climate for nuclear energy, by Skip Bowman, Nuclear Energy Insitute; Selecting protective clothing, by J. Mark Price, Southern California Edison; and Succssful refurbishment outage, by Sudesh K. Gambhir, Omaha Public Power District. Industry innovation articles in this issue are: Containment radiation monitoring spiking, by Michael W. Lantz and Robert Routolo, Arizona Public Service Company; Improved outage performance, by Michael Powell and Troy Wilfong, Arizona Public Service Company, Palo Verde Nuclear Generating Station; Stop repacking valves and achieve leak-free performance, by Kenneth Hart, PPL Susquehanna LLC; and Head assembly upgrade package, by Timothy Petit, Dominion Nuclear.
Shawn St. Germain; Ronald Farris
2014-09-01T23:59:59.000Z
Advanced Outage Control Center (AOCC), is a multi-year pilot project targeted at Nuclear Power Plant (NPP) outage improvement. The purpose of this pilot project is to improve management of NPP outages through the development of an AOCC that is specifically designed to maximize the usefulness of communication and collaboration technologies for outage coordination and problem resolution activities. This report documents the results of a benchmarking effort to evaluate the transferability of technologies demonstrated at Idaho National Laboratory and the primary pilot project partner, Palo Verde Nuclear Generating Station. The initial assumption for this pilot project was that NPPs generally do not take advantage of advanced technology to support outage management activities. Several researchers involved in this pilot project have commercial NPP experience and believed that very little technology has been applied towards outage communication and collaboration. To verify that the technology options researched and demonstrated through this pilot project would in fact have broad application for the US commercial nuclear fleet, and to look for additional outage management best practices, LWRS program researchers visited several additional nuclear facilities.
Outage Capacity and Code Design for Dying Channels
Zeng, Meng
2012-10-19T23:59:59.000Z
channel length. First, we study the outage probability when the coding length K is fixed and uniform power allocation is assumed. Furthermore, we discuss the optimization over K and the power allocation vector PK to minimize the outage probability...
Power Outage 1.Stop serving food and beverages.
LESSON1 Power Outage 1.Stop serving food and beverages. Notify customers. 2.Do two things food. Emergency Readiness for Food Workers #12;LESSON1 Power Outage 5.Food being held cold: Discard
Hopper compilers and DDT short outage next Wed, May 16
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
compilers and DDT short outage next Wed, May 16 Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 (0 Comments) Due to a scheduled maintenance for the License...
Outage managment and health physics issue, 2008
Agnihotri, Newal (ed.)
2008-05-15T23:59:59.000Z
The focus of the May-June issue is on outage management and health physics. Major articles include: Outage optimization initiatives, by George B. Beam, AREVA NP, Inc.; New plant based on excellent track records, by Jim Scarola, Progress Energy; Meeting customer needs and providing environmental benefits, by Peter S. Hastings, Duke Energy; Plants with 3-D design, by Jack A. Bailey, Tennessee Valley Authority; and Highest quality with exceptional planning, by Jason A. Walls, Duke Energy. Industry innovation articles include: Integrated exposure reduction plan, by Ed Wolfe, Exelon; Performance-based radiation worker training, by Joe Giuffre and Timothy Vriezerma, American Electric Power.
OUTAGE MINIMIZATION BY OPPORTUNISTIC COOPERATION Deniz Gunduz, Elza Erkip
Erkip, Elza
OUTAGE MINIMIZATION BY OPPORTUNISTIC COOPERATION Deniz Gunduz, Elza Erkip Department of Electrical channel state information, and consider the system perfor- mance in terms of outage probability. We improves the outage performance significantly and performs very close to the half-duplex lower bound while
Spatial Outage Probability for Cellular Networks Jean-Marc Kelif
Coupechoux, Marceau
Spatial Outage Probability for Cellular Networks Jean-Marc Kelif France Telecom R&D Issy networks called the fluid model and we derive from this model analytical formulas for interference, outage probability, and spatial outage probability. The key idea of the fluid model is to consider the discrete base
Visualizing Sparse Internet Events: Network Outages and Route Changes
Heidemann, John
Visualizing Sparse Internet Events: Network Outages and Route Changes Lin Quan · John Heidemann. To understand and man- age network events such as outages, route instability, and spam campaigns, they must- namics of network outages such as January 2011 Egyptian change of government, and the March 2011 Japanese
Poster Abstract: Towards Active Measurements of Edge Network Outages
Heidemann, John
Poster Abstract: Towards Active Measurements of Edge Network Outages Lin Quan John Heidemann Yuri-to-end reachability is a fundamental service of the Internet. We study net- work outages caused by natural disasters [2,5], and political upheavals [8]. We propose a new approach to outage detection using active
SERVICE OUTAGE BASED ADAPTIVE TRANSMISSION IN FADING CHANNELS
Yates, Roy
SERVICE OUTAGE BASED ADAPTIVE TRANSMISSION IN FADING CHANNELS BY JIANGHONG LUO A dissertation OF THE DISSERTATION Service Outage Based Adaptive Transmission in Fading Channels by Jianghong Luo Dissertation Director: Prof. Roy Yates, Prof. Predrag Spasojevi´c The service outage based allocation problem explores
Mismatched CSI Outage Exponents of Block-Fading Channels
Mismatched CSI Outage Exponents of Block-Fading Channels A. Taufiq Asyhari Department variances at the transmitter and at the receiver to give the optimal outage exponents. We also demonstrate state information at the transmitter in terms of outage exponent. I. INTRODUCTION The block
Spatial Outage Probability Formula for CDMA Jean-Marc Kelif
Coupechoux, Marceau
Spatial Outage Probability Formula for CDMA Networks Jean-Marc Kelif France Telecom R&D Issy networks called the fluid model and we derive from this model analytical formulas for interference, outage probability, and spatial outage probability. The key idea of the fluid model is to consider the discrete base
Multi-Keyhole MIMO Channels: Asymptotic Analysis of Outage Capacity
Loyka, Sergey
Multi-Keyhole MIMO Channels: Asymptotic Analysis of Outage Capacity George Levin and Sergey Loyka single-keyhole channels. The outage capacity distribution of both full-rank and rank-deficient multi channel, outage capacity, correlation. I. INTRODUCTION Multiple-Input-Multiple-Output (MIMO) channels have
Conservative Estimates of Blocking and Outage Probabilities in CDMA Networks
Bonald, Thomas
Conservative Estimates of Blocking and Outage Probabilities in CDMA Networks T. Bonald, A. Prouti`ere 1 France Telecom, Division R&D, Issy-les-Moulineaux, France Abstract The outage probability is a key the blocking probability. The blocking and outage probabilities do not have closed-form expressions
Outage and Capacity Analysis of Cellular CDMA With Admission Control
Chockalingam, A.
Outage and Capacity Analysis of Cellular CDMA With Admission Control S. AnandÝ , A. Chockalingam. Ltd., Bangalore, INDIA Abstract-- We analyze the outage and capacity performance of an interference based admission control strategy in cellular CDMA systems. Most approaches to estimate the outage
Onsite Wastewater Treatment Systems: Responding to Electrical Power Outages
1 Onsite Wastewater Treatment Systems: Responding to Electrical Power Outages and Floods Bruce The Texas A&M University System Electrical power outages and floods can affect you and your residential power outages and flooding. System Components To properly respond to a disaster, homeowners need to know
Asymptotic Analysis of Outage Probability in Cognitive Radio Networks
Loyka, Sergey
Asymptotic Analysis of Outage Probability in Cognitive Radio Networks Yaobin Wen, Sergey Loyka but not the outage probability itself. Unlike the cumulant-based analysis, our approach provides a guaranteed level. In particular, we demonstrate that there is a critical transition point below which the outage probability
A Preliminary Analysis of Network Outages During Hurricane Sandy
Heidemann, John
A Preliminary Analysis of Network Outages During Hurricane Sandy USC/ISI Technical Report ISI outages during the October 2012 Hurricane Sandy. We assess net- work reliability by pinging a sample network outages, we see that the out- age rate in U.S. networks doubled when the hurricane made landfall
Outage Performance of the Primary Service in Spectrum Sharing Networks
Yanikomeroglu, Halim
Outage Performance of the Primary Service in Spectrum Sharing Networks Mohammad G. Khoshkholgh, we utilize stochastic geometry to analyze the primary service (PS) outage performance for spectrum) parameters and wireless environment on the PS outage probability are analyzed. We further obtain a closed
On Asymptotic Outage Capacity Distribution of Correlated MIMO Channels
Loyka, Sergey
On Asymptotic Outage Capacity Distribution of Correlated MIMO Channels Georgy Levin* and Sergey condition for the asymptotic normality of MIMO channel outage capacity is considered. Some physical aspects, asymptotic capacity, correlation. I. INTRODUCTION Outage capacity is one of the major characteristics
Does Beamforming achieve Outage Capacity with Direction Feedback?
Jafar, Syed A.
Does Beamforming achieve Outage Capacity with Direction Feedback? Sudhir Srinivasa and Syed Ali: syed@ece.uci.edu, sudhirs@uci.edu Email: sriram@ece.utexas.edu Abstract We explore the outage capacity of outage capacity for a quantized channel direction feedback system. The technique is used to establish
Primary Outage-Based Resource Allocation Strategies
Gesbert, David
, the scheme would have governed transmitter power on a variable basis calculated to limit the energy at victim, 2003). Rather than merely regulate transmitter power at fixed levels, as it has been done in the past in this work by proposing three resource management strategies based on outage probability. The motivation
Advanced Outage and Control Center: Strategies for Nuclear Plant Outage Work Status Capabilities
Gregory Weatherby
2012-05-01T23:59:59.000Z
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.
Outage management and health physics issue, 2006
Agnihotri, Newal (ed.)
2006-05-15T23:59:59.000Z
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.
Outage management and health physics issue, 2009
Agnihotri, Newal (ed.)
2009-05-15T23:59:59.000Z
The focus of the May-June issue is on outage management and health physics. Major articles include the following: Planning and scheduling to minimize refueling outage, by Pat McKenna, AmerenUE; Prioritizing safety, quality and schedule, by Tom Sharkey, Dominion; Benchmarking to high standards, by Margie Jepson, Energy Nuclear; Benchmarking against U.S. standards, by Magnox North, United Kingdom; Enabling suppliers for new build activity, by Marcus Harrington, GE Hitachi Nuclear Energy; Identifying, cultivating and qualifying suppliers, by Thomas E. Silva, AREVA NP; Creating new U.S. jobs, by Francois Martineau, Areva NP. Industry innovation articles include: MSL Acoustic source load reduction, by Amir Shahkarami, Exelon Nuclear; Dual Methodology NDE of CRDM nozzles, by Michael Stark, Dominion Nuclear; and Electronic circuit board testing, by James Amundsen, FirstEnergy Nuclear Operating Company. The plant profile article is titled The future is now, by Julia Milstead, Progress Energy Service Company, LLC.
Application of Standard Maintenance Windows in PHWR Outage
Fuming Jiang [Third Qinshan Nuclear Power Company, Ltd. (China)
2006-07-01T23:59:59.000Z
The concept of Standard Maintenance Windows has been widely used in the planned outage of light water reactor in the world. However, due to the specific feature of Pressurized Heavy Water Reactor (PHWR), it has not come to a consensus for the PHWR owners to adopt Standard Maintenance Windows for planned outage aiming at the optimization of outage duration. Third Qinshan Nuclear Power Company (TQNPC), with their experience gained in the previous outages and with reference to other PHWR power plants, has identified a set of Standard Maintenance Windows for planned outage. It can be applied to similar PHWR plants and with a few windows that are specific to Qinshan Phase III NPP. The use of these Standard Maintenance Windows in planned outage has been proved to be effective in control shutdown nuclear safety, minimize the unavailability of safety system, improve the efficient utilization of outage duration, and improved the flexibility of outage schedule in the case of emergency issue, which forced the revision of outage schedule. It has also formed a solid foundation for benchmarking. The identification of Standard Maintenance Windows and its application will be discussed with relevant cases for the common improvement of outage duration. (author)
Parfouru, S.; De-Beler, N. [EDF Recherche and Developpement, 6 quai Watier, 78400 Chatou (France)
2012-07-01T23:59:59.000Z
In the context of a project that is designing innovative ICT-based solutions for the organizational concept of outage management, we focus on the informational process of the OCR (Outage Control Room) underlying the execution of the outages. Informational process are based on structured and unstructured documents that have a key role in the collaborative processes and management of the outage. We especially track the structured and unstructured documents, electronically or not, from creation to sharing. Our analysis allows us to consider that the individual traces produced by an individual participant with a specific role could be multi-purpose and support sharing between participants without creating duplication of work. The ultimate goal is to be able to generate an outage historian, that is not just focused on highly structured information, which could be useful to improve the continuity of information between participants. We study the implementation of this approach through web technologies and social media tools to address this issue. We also investigate the issue of data access through interactive visualization timelines coupled with other modality's to assist users in the navigation and exploration of the proposed historian. (authors)
Bounds on the outage-constrained capacity region of space-division multiple-access radio systems
Jin, Haipeng; Acampora, A
2004-01-01T23:59:59.000Z
Broadcast Channels - Part I: Outage Capacity,” IEEE Trans.Bounds on the Outage-Constrained Capacity Region of Spacethe capacity limit as an outage region rates contained
Cross-Layer Design of Outage Optimum Routing Metric for Wireless Ad Hoc Networks
Garcia-Luna-Aceves, J.J.
2011-01-01T23:59:59.000Z
PAPER Cross-layer design of outage optimum routing metricof wireless ad hoc network outage probability in a fadingJ. J. Garcia-Luna-Aceves Outage optimum routing for wireless
How Accurate are the Gaussian and Gamma Approximations to the Outage Capacity of MIMO Channels ?
Øien, Geir E.
How Accurate are the Gaussian and Gamma Approximations to the Outage Capacity of MIMO Channels MIMO capacity complementary cumulative distribution functions, or equivalently, the outage capacity distribution function (CDF) (also known as the outage capacity), or equivalently, the capacity complementary
OutageMapURL Phases Energy Services
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaPLawrence County,1980) | OpenAl., 2001)ORS Chaptersource|OrovilleOssian,Ottawa,EnergyOpenOutageMapURL
Plant maintenance and outage management issue, 2005
Agnihotri, Newal (ed.)
2005-01-15T23:59:59.000Z
The focus of the January-February issue is on plant maintenance and outage managment. Major articles/reports in this issue include: Dawn of a new era, by Joe Colvin, Nuclear Energy Institute (NEI); Plant profile: Beloyarsk NPP, Russia, by Nikolai Oshkanov, Beloyarsk NPP, Russia; Improving economic performance, by R. Spiegelberg-Planner, John De Mella, and Marius Condu, IAEA; A model for improving performance, by Pet Karns, MRO Software; ASME codes and standards, by Shannon Burke, ASME International; and, Refurbishment programs, by Craig S. Irish, Nuclear Logistics, Inc.
Adve, Raviraj
IEEE COMMUNICATIONS LETTERS, VOL. 11, NO. 7, JULY 2007 589 Outage Probability of Selection (SNR) regimes. We approximate the outage probability of selection cooperation for all SNR levels approximations for practical values of outage probability. Index Terms-- Outage probability, cooperative
Electricity Case: Statistical Analysis of Electric Power Outages
Wang, Hai
Electricity Case: Statistical Analysis of Electric Power Outages CREATE Report Jeffrey S. Simonoff: Statistical Analysis of Electric Power Outages CREATE Report July 26, 2005 Jeffrey S. Simonoff (NYU of the United States Department of Homeland Security. #12;0 Electricity Case, Report 3 Electricity Case
Outage behavior with delay and CSIT Dinesh Rajan
Rajan, Dinesh
Outage behavior with delay and CSIT Dinesh Rajan Department of electrical engineering Southern of electrical and computer engineering Rice University, Houston, Texas. ashu@rice.edu, aaz@rice.edu Abstract-- In this paper, we demonstrate that the packet outage probability for fading channels can be significantly
Fermi 2: Independent safety assessment of refueling outage
Arora, H.O. [Detroit Edison, MI (United States)
1994-12-31T23:59:59.000Z
Industry experience and studies conducted by the U.S. Nuclear Regulatory Commission (NRC) have shown that plants are susceptible to a variety of events that can challenge safety during shutdowns. While these events have neither posed nor indicated an undue risk to public health and safety, they do serve to underscore the importance of effective outage planning and control. The NUMARC 91-06 guidelines suggest that proper planning and execution of outage activities can reduce the likelihood and consequences of events, which ultimately enhances safety during shutdown. The Fermi 2, Independent Safety Engineering Group (ISEG) is charged with the independent safety review of the refueling outage plan and its implementation. The ISEG is responsible for performing a detailed and critical review of proposed outage plan prior to the start of the outage, maintaining surveillance of the adequacy and consistency of the {open_quotes}defense-in-depth{close_quotes} provided during the outage, reviewing the outage plan changes for potential vulnerabilities that could affect safety functions, and investigating selected events that emerge during the course of the outage.
A stochastic model for the measurement of electricity outage costs
Grosfeld-Nir, A.; Tishler, A. (Tel Aviv Univ. (Israel))
1993-01-01T23:59:59.000Z
The measurement of customer outage costs has recently become an important subject of research for electric utilities. This paper uses a stochastic dynamic model as the starting point in developing a market-based method for the evaluation of outage costs. Specifically, the model postulates that once an electricity outage occurs, all production activity stops. Full production is resumed once the electricity outage is over. This process repeats itself indefinitely. The business customer maximizes his expected discounted profits (the expected value of the firm), taking into account his limited ability to respond to repeated random electricity outages. The model is applied to 11 industrial branches in Israel. The estimates exhibit a large variation across branches. 34 refs., 3 tabs.
Technology Integration Initiative In Support of Outage Management
Gregory Weatherby; David Gertman
2012-07-01T23:59:59.000Z
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.
Outage Analysis and Optimization for Multiaccess/V-BLAST Architecture over MIMO
Varanasi, Mahesh K.
Outage Analysis and Optimization for Multiaccess/V-BLAST Architecture over MIMO Rayleigh Fading the outage probabilities or upper bounds to outage probabilities, obtained with the optimum decoder feedback decoders. The derivations bring out the intimate connection between the outage probability
Service Outage Based Power and Rate Allocation for Parallel Fading Channels
Yates, Roy
1 Service Outage Based Power and Rate Allocation for Parallel Fading Channels Jianghong Luo, Member, IEEE, Roy Yates, Member, IEEE, and Predrag Spasojevi´c, Member, IEEE Abstract-- The service outage of ergodic capacity and outage capacity for fading channels. A service outage occurs when the transmission
The Role of Computational Outage in Dense Cloud-Based Centralized Radio Access Networks
Valenti, Matthew C.
The Role of Computational Outage in Dense Cloud-Based Centralized Radio Access Networks M. C Outage A computational outage occurs when the amount of computation required to decode the signal in a cloud group exceeds the available resources. The probability of computational outage is: From the system
Impact of Topology and Shadowing on the Outage Probability of Cellular Networks
Coupechoux, Marceau
Impact of Topology and Shadowing on the Outage Probability of Cellular Networks Jean-Marc Kelif--This paper proposes an analytical study of the shadowing impact on the outage probability in cellular radio in the outage probability. From f, we are able to derive the outage probability of a mobile station (MS
Power Outage 1. Remain Calm; provide assistance to others if necessary.
Hickman, Mark
Power Outage 1. Remain Calm; provide assistance to others if necessary. 2. Report the outage, call. Campus-wide telephone communications will continue to operate during a power outage on standard phones. 5. Ensure someone remains with any disabled persons who become stranded as a result of the outage
Outage performance of an energy-efficient relaying protocol over Nakagami fading channels
Blostein, Steven D.
Outage performance of an energy-efficient relaying protocol over Nakagami fading channels Viet only when the first-hop signal-to-noise ratio(SNR) is above the outage threshold, otherwise, relay transmission is stopped as it leads in that case to an outage. Closed-form expressions of CG outage probability
GMI and Mismatched-CSI Outage Exponents in MIMO Block-Fading Channels
GMI and Mismatched-CSI Outage Exponents in MIMO Block-Fading Channels A. Taufiq Asyhari National then analyze the corresponding outage probability in the high signal-to-noise ratio regime. I. INTRODUCTION outage probability [1]. The majority of works on block-fading channels studied the outage probability
Evans, Brian L.
SUBMITTED TO IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 1 Outage Probability for Diversity of outage probability in the low-outage regime. The contributions of this paper are (1) derivation of closed, selection and post-detection combining; (2) comparison of the relative outage performance
Using Outage History to Exclude High-Risk Satellites from GBAS Corrections
Stanford University
Using Outage History to Exclude High-Risk Satellites from GBAS Corrections Sam Pullen and Per Enge this assumption. A study of unscheduled GPS satellite outages from 1999 to present shows that, as expected, older experienced unscheduled outages are more likely to suffer additional unscheduled outages. Combining these two
Shawn St. Germain; Ronald Farris; Heather Medeman
2013-09-01T23:59:59.000Z
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.
SAMPLE RESULTS FROM MCU SOLIDS OUTAGE
Peters, T.; Washington, A.; Oji, L.; Coleman, C.; Poirier, M.
2014-09-22T23:59:59.000Z
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.
Lassoing Line Outages in the Smart Power Grid
Zhu, Hao
2011-01-01T23:59:59.000Z
Fast and accurate unveiling of power line outages is of paramount importance not only for preventing faults that may lead to blackouts, but also for routine monitoring and control tasks of the smart grid, including state estimation and optimal power flow. Existing approaches are either challenged by the \\emph{combinatorial complexity} issues involved, and are thus limited to identifying single- and double-line outages; or, they invoke less pragmatic assumptions such as \\emph{conditionally independent} phasor angle measurements available across the grid. Using only a subset of voltage phasor angle data, the present paper develops a near real-time algorithm for identifying multiple line outages at the affordable complexity of solving a quadratic program via block coordinate descent iterations. The novel approach relies on reformulating the DC linear power flow model as a \\emph{sparse} overcomplete expansion, and leveraging contemporary advances in compressive sampling and variable selection using the least-abso...
Overview of Common Mode Outages in Power Systems
Papic, Milorad; Awodele , Kehinde; Billinton, Roy; Dent, Chris; Eager, Dan; Hamoud, Gomaa; Jirutitijaroen, Panida; Kumbale, Murali; Mitra, Joydeep; Samaan, Nader A.; Schneider, Alex; Singh, Chanan
2012-11-10T23:59:59.000Z
This paper is a result of ongoing activity carried out by Probability Applications for Common Mode Events (PACME) Task Force under the Reliability Risk and Probability Applications (RRPA) Subcommittee. The paper is intended to constitute a valid source of information and references about dealing with common-mode outages in power systems reliability analysis. This effort involves reviewing published literature and presenting state-of-the-art research and practical applications in the area of common-mode outages. Evaluation of available outage statistics show that there is a definite need for collective effort from academia and industry to not only recommended procedures for data collection and monitoring but also to provide appropriate mathematical models to assess such events.
Transformation Composition Transformational Geometry
Ferguson, Thomas S.
Isomotries Transformation Composition Congruence Transformational Geometry Christopher Ograin Christopher Ograin Transformational Geometry #12;Isomotries Transformation Composition Congruence Geo Transformational Geometry #12;Isomotries Transformation Composition Congruence Definitions Transformation
The detection, prevention and mitigation of cascading outages in the power system
Song, Hongbiao
2009-05-15T23:59:59.000Z
This dissertation studies the causes and mechanism of power system cascading outages and develops new methods and new tools to help detect, prevent and mitigate the outages. Three effective solutions: a steady state control scheme, a transient...
The detection, prevention and mitigation of cascading outages in the power system
Song, Hongbiao
2009-05-15T23:59:59.000Z
This dissertation studies the causes and mechanism of power system cascading outages and develops new methods and new tools to help detect, prevent and mitigate the outages. Three effective solutions: a steady state control scheme, a transient...
U.S. - Canada Power System Outage Task Force: Final Report on...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
U.S. - 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...
Dobson, Ian
2015-01-01T23:59:59.000Z
We show how to use standard transmission line outage historical data to obtain the network topology in such a way that cascades of line outages can be easily located on the network. Then we obtain statistics quantifying how cascading outages typically spread on the network. Processing real outage data is fundamental for understanding cascading and for evaluating the validity of the many different models and simulations that have been proposed for cascading in power networks.
Impact of Extreme Weather on Power System Blackouts and Forced Outages: New Challenges
Dobson, Ian
1 Impact of Extreme Weather on Power System Blackouts and Forced Outages: New Challenges Mladen on the impact of extreme weather on power system outages. Extreme weather condition impacts of interest are listed, including both direct and consequential events. Their impact on power system outages
Self-Organization of a Mesh Hierarchy for Smart Grid Monitoring in Outage Scenarios
Tague, Patrick
]. Like any electric or mechanical system, smart grids are prone to outages, failure, and disasters1 Self-Organization of a Mesh Hierarchy for Smart Grid Monitoring in Outage Scenarios Arjun P outages. In this work, we propose a self-organizing multi-channel wireless communication framework to aid
and an extra supply of fresh batteries in a designated area for use during an electrical outage. B. Employee Outages Section No. 1 A24 Section Name: Clinical Operations Approval Date: 02/28/13 Approval: Paul R activities during an unscheduled utility outage and guide clinical facility staff in the management
Loyka, Sergey
IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 58, NO. 11, NOVEMBER 2012 6825 Outage Probability Abstract--Outage probability and capacity of a class of block- fading MIMO channels are considered under distributions. Compound outage probability defined as min (over the transmitted signal distribution) -max (over
Outage Probability of the Gaussian Free Space Optical Channel with Pulse-Position Modulation
Guillén i Fàbregas, Albert
Outage Probability of the Gaussian Free Space Optical Channel with Pulse-Position Modulation Nick adopt a quasi-static block fading model and study the outage probability of the channel under gains are possible by using power allocation techniques to minimise the outage probability. I
Analysis and Computation of the Outage Probability of Discrete-Input Block-Fading Channels
Guillén i Fàbregas, Albert
Analysis and Computation of the Outage Probability of Discrete-Input Block-Fading Channels Khoa D IS ELIGIBLE FOR THE STUDENT PAPER AWARD. In this paper, we propose a tight lower bound to the outage is not supported by a particular channel realization [1], [2]. This probability is named the information outage
The Impact of Fading on the Outage Probability in Cognitive Radio Networks
Loyka, Sergey
1 The Impact of Fading on the Outage Probability in Cognitive Radio Networks Yaobin Wen, Sergey Loyka and Abbas Yongacoglu Abstract--This paper analyzes the outage probability in cog- nitive radio possible scenarios are classified into three cases based on typical outage events. When the average number
IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 2, FEBRUARY 2009 319 Outage Probability of
Bhashyam, Srikrishna
IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 2, FEBRUARY 2009 319 Outage Probability on the outage probability of multiple-input single-output (MISO) fading channels. Channel state information. With perfect CSIR, under a short-term power con- straint, we determine: (a) the outage probability
PRE-PRINT, IEEE TRANS. INFORM. TH. Outage Theorems for MIMO Block Fading
Varanasi, Mahesh K.
PRE-PRINT, IEEE TRANS. INFORM. TH. Outage Theorems for MIMO Block Fading Channels Narayan Prasad probability (FEP) of space-time codes and the outage probability over general block fading multi-input multi are defined for a given rate and it is shown that average FEPs arbitrarily close to the respective outage
Model-based congestion analysis during outage and system reconfiguration in GPRS networks
Firenze, Università degli Studi di
Model-based congestion analysis during outage and system reconfiguration in GPRS networks overlapping. In particular, we consider that one of the two cells is affected by an outage and we analyze resources become suddenly unavailable due to malfunctions. The occurrence of an outage is the typical event
Reuter Power Outage Communications: Needs, Infrastructures, Concepts Proceedings of the 10th
Reuter Power Outage Communications: Needs, Infrastructures, Concepts Proceedings of the 10th. Geldermann and T. Müller, eds. 1 Power Outage Communications: Survey of Needs, Infrastructures and Concepts.reuter@uni-siegen.de ABSTRACT Crisis communication during power outages poses several challenges. Frist, the causes of power
Joint Impact of Pathloss, Shadowing and Fast Fading -An Outage Formula for
Coupechoux, Marceau
Joint Impact of Pathloss, Shadowing and Fast Fading - An Outage Formula for Wireless Networks of pathloss, shadowing and fast fading, we de- rive an easily computable outage probability formula´eseaux cellulaires. i #12;Contents Contents ii 1 Introduction 1 2 Outage Probabilities 2 2.1 Shadowing impact
Outage Probability for Joint Processing Coordinated Multi-Point (JP-CoMP) Performance
Coupechoux, Marceau
Outage Probability for Joint Processing Coordinated Multi-Point (JP-CoMP) Performance Analysis Seminar 09 Mar. 2011 M. Coupechoux (TPT) Outage Prob. for JP-CoMP 09 Mar. 2011 1 / 48 #12;LTE and LTE Nets CoMP Figure: Evolution of the 3GPP Standards. M. Coupechoux (TPT) Outage Prob. for JP-CoMP 09 Mar
Joint Power Control and Beamforming Codebook Design for MISO Channels under the Outage
Yu, Wei
Joint Power Control and Beamforming Codebook Design for MISO Channels under the Outage Criterion is formulated as the minimization of the outage probability subject to the transmit power constraint beamforming and power codebook sizes. We show that as the outage probability decreases, optimal joint design
Outage Probability for Free-Space Optical Systems Over Slow Fading Channels With Pointing Errors
Hranilovic, Steve
Outage Probability for Free-Space Optical Systems Over Slow Fading Channels With Pointing Errors, Canada. Email: farid@grads.ece.mcmaster.ca, hranilovic@mcmaster.ca Abstract-- We investigate the outage errors. An expression for the outage probability is derived and we show that optimizing the transmit- ted
Outage in a Cellular Network Overlaid with an Ad hoc Network: The Uplink Case
Yanikomeroglu, Halim
Outage in a Cellular Network Overlaid with an Ad hoc Network: The Uplink Case Arshdeep S. Kahlon}@sce.carleton.ca Abstract--We analyze the uplink outage probability at the randomly, but not necessarily independently nor, large-scale power control, and the knowledge of the initial outages in the absence of the secondary
On the Impact of Mobility on Outage Probability in Cellular Networks
Coupechoux, Marceau
On the Impact of Mobility on Outage Probability in Cellular Networks Jean-Marc Kelif France Telecom an analytical study of the mobility in cellular networks and its impact on quality of service and outage power. It allows us to analyze users mobility and to derive expressions of the outage probability. We
Yates, Roy
1 Service Outage Based Power and Rate Allocation Jianghong Luo, Lang Lin, Roy Yates, and Predrag Spasojevi´c Abstract--This paper combines the concepts of ergodic capac- ity and capacity versus outage for fading channels, and explores variable rate transmissions under a service outage constraint in a block
IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 62, NO. 2, FEBRUARY 2014 699 Outage Probability in
Durrani, Salman
IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 62, NO. 2, FEBRUARY 2014 699 Outage Probability, IEEE, and Xiangyun Zhou, Member, IEEE Abstract--This paper analyzes the outage performance in finite the outage probability at any arbitrary location of an arbitrarily-shaped finite wireless network: (i
Impact of the Secondary Network on the Outage Performance of the Primary Service
Yanikomeroglu, Halim
Impact of the Secondary Network on the Outage Performance of the Primary Service in Spectrum-- In this paper, we utilize stochastic geometry to analyze the primary service outage performance for spectrum parameters as well as the wireless environment on the primary service outage probability are analyzed. We
Asymptotic Outage Analysis of General Motion-Invariant Ad Hoc Networks
Haenggi, Martin
Asymptotic Outage Analysis of General Motion-Invariant Ad Hoc Networks Riccardo Giacomelli Dept Dame, IN, USA E-mail: mhaenggi@nd.edu Abstract--The outage analysis of networks with randomly a homogeneous Poisson point process. In this paper, we show that in great generality, the outage probability
Outage Probability of Amplify-and-Forward Opportunistic Relaying with Multiple Interferers
Lee, Jae Hong
Outage Probability of Amplify-and-Forward Opportunistic Relaying with Multiple Interferers over channels. We derive the closed-form expression of the outage probability for the AF opportunistic relaying derive the analytical results. Also, in [9], the authors investigate the outage behavior of the dual
The Outage Performance of Realtime Transmission in Multiple Asynchronous Relays Enhanced OFDM
Gross, James
The Outage Performance of Realtime Transmission in Multiple Asynchronous Relays Enhanced OFDM@mail.ustc.edu.cn Abstract--This paper1 considers the outage performance of multiple relays transmission in Orthogonal communication systems that need to meet tough latency and outage requirements. Different from previous works
Cut-off Rate based Outage Probability Analysis of Frequency Hopping Mobile Radio under Jamming
Yýlmaz, Özgür
Cut-off Rate based Outage Probability Analysis of Frequency Hopping Mobile Radio under Jamming--This paper deals with the achievable spectral ef- ficiency and outage analysis of short burst frequency hopping (FH) mobile radios under heavy jamming scenarios. With the use of outage probability analysis
Outage Minimization for a Fading Wireless Link with Energy Harvesting Transmitter and Receiver
1 Outage Minimization for a Fading Wireless Link with Energy Harvesting Transmitter and Receiver Abstract--This paper studies online power control policies for outage minimization in a fading wireless link with energy harvesting transmitter and receiver. The outage occurs when either the transmitter
Outage Analysis for MIMO Rician Channels and Channels with Partial CSI
Lee, Yong Hoon
Outage Analysis for MIMO Rician Channels and Channels with Partial CSI Won-Yong Shin, Sae the outage performance and diversity- multiplexing tradeoff (DMT), originally introduced by Zheng and Tse (CSIT). The asymptotic behaviors of the outage are analyzed in the limit of high signal-to-noise ratio
Benefits of Multiple Transmit Antennas in Secure Communication: A Secrecy Outage Viewpoint
Zhou, Xiangyun "Sean"
Benefits of Multiple Transmit Antennas in Secure Communication: A Secrecy Outage Viewpoint Xi Zhang confusing the eavesdrop- per by delivering artificial noise. A recently developed secrecy outage formulation the security performance. We show that an arbitrarily low secrecy outage probability cannot be achieved
Information Outage Probability of Orthogonal Space-Time Block Codes over Hoyt Distributed
Rontogiannis, Athanasios A.
Information Outage Probability of Orthogonal Space-Time Block Codes over Hoyt Distributed Fading,tronto,mathio} @space.noa.gr Abstract- In this paper the information outage probabil- ity (IOP) of orthogonal space telecommunications applications. For instance, in [4] this model has been used in outage analysis of cellular mobile
Analysis of BGP Prefix Origins During Google's May 2005 Outage Tao Wan Paul C. van Oorschot
Van Oorschot, Paul
Analysis of BGP Prefix Origins During Google's May 2005 Outage Tao Wan Paul C. van Oorschot School- vice outage is BGP. To pursue the latter possibility further, we explore how BGP was functioning during prior to the service outage. As a result, 49.1% of ASes re-advertising routes for 64
IEEE COMMUNICATIONS LETTERS, VOL. 17, NO. 1, JANUARY 2013 127 Capacity of Zero-Outage Scheme
Candan, Cagatay
IEEE COMMUNICATIONS LETTERS, VOL. 17, NO. 1, JANUARY 2013 127 Capacity of Zero-Outage Scheme Under Imprecise Channel State Information C¸ a~gatay Candan Abstract--The capacity of zero-outage scheme-to-noise-ratio fluctuates and the scheme suffers from com- munication outages. Exact analytical expressions characterizing
Using Outage History to Exclude High-Risk Satellites from GBAS Corrections
Stanford University
Using Outage History to Exclude High-Risk Satellites from GBAS Corrections SAM PULLEN and PER ENGE constellation are not expected to violate this assumption. A study of unscheduled GPS satellite outages from. In addition, satellites that have recently experienced unscheduled outages are more likely to suffer
Outage Probability in a Multi-Cellular Network using Alamouti Scheme
Coupechoux, Marceau
Outage Probability in a Multi-Cellular Network using Alamouti Scheme Dorra Ben Cheikh , Jean to interference plus noise ratio (SINR) or equivalently the outage probability in flat Rayleigh fading. The system power from the interfering base stations. In the first case, a closed- form expression for the outage
Reduced-Outage-Probability Algorithms for Cross-Layer Call Admission Control in CDMA
Blostein, Steven D.
1 Reduced-Outage-Probability Algorithms for Cross-Layer Call Admission Control in CDMA Beamforming, increases outage probability in the physical layer. In this paper, we investigate the mitigation of the outage problem in the context of cross-layer performance, and propose CAC algorithms for code
Minimum Duration Outages in Rayleigh Fading Channels Jie Lai and Narayan B. Mandayam
Mandayam, Narayan
Minimum Duration Outages in Rayleigh Fading Channels Jie Lai and Narayan B. Mandayam WINLAB@winlab.rutgers.edu Abstract Minimum duration outages have been introduced in [1, 2] for lognormal shadow fading where the durations of signal fades were considered in evaluating outages. In this pa per we develop and analyze
Outage Capacity of the Fading Relay Channel in the Low SNR Regime
Tse, David
Outage Capacity of the Fading Relay Channel in the Low SNR Regime A. Salman Avestimehr and David N at the outage capacity of the fading relay channel with half-duplex constraint in the low SNR regime. First we. In this case we show that a Bursty Amplify-Forward (BAF) protocol is optimal and achieves the outage capacity
Outage Performance for Amplify-and-Forward Channels with an Unauthenticated Relay
Swindlehurst, A. Lee
Outage Performance for Amplify-and-Forward Channels with an Unauthenticated Relay Jing Huang and reliable message transmission via the secrecy outage probability (SOP) of the relay network. We first predictions of the preferred transmission policies from a secrecy outage perspective. I. INTRODUCTION
On Outage Performance of Spectrum-Sharing Communication over M-Block Fading
Shihada, Basem
On Outage Performance of Spectrum-Sharing Communication over M-Block Fading AbdulRahman Alabbasi to the primary and secondary users. We minimize the secondary user's targeted outage probability over the block-fading channels. To protect the primary user, a statistical constraint on its targeted outage probability
MIMO Outage Capacity in the High SNR Regime Narayan Prasad Mahesh K. Varanasi
Varanasi, Mahesh K.
MIMO Outage Capacity in the High SNR Regime Narayan Prasad Mahesh K. Varanasi NEC Labs. America channel with coherent reception and pro- vide a sharp characterization of the outage capacity in the form on the outage capacities un- der a long-term and a short-term power constraint as well as on the delay
On Secrecy Outage Capacity of Fading Channels Under Relaxed Delay Constraints
Koksal, Can Emre
On Secrecy Outage Capacity of Fading Channels Under Relaxed Delay Constraints Onur Gungor, Can Emre delay constraints. More specif- ically, we extend the definition of outage secrecy capacity for single, we provide bounds on secrecy outage capacity with k + 1 block delay constraint. We show
Onsite Wastewater Treatment Systems: Responding to Power Outages and Floods
Lesikar, Bruce J.; Mechell, Justin; Alexander, Rachel
2008-10-23T23:59:59.000Z
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...
Preventing power outages Power system contingency analysis on the GPU
Vuik, Kees
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
Outage Probability Analysis of Distributed Reception with Hard Decision Exchanges
Brown III, Donald R.
Outage Probability Analysis of Distributed Reception with Hard Decision Exchanges Rui Wang, D. Richard Brown III, Min Ni Dept. of Electrical and Computer Eng. Worcester Polytechnic Institute 100 Institute Rd, Worcester, MA 01609 Email: {rwang,drb,minni@wpi.edu} Upamanyu Madhow Dept. of Electrical
Onsite Wastewater Treatment Systems: Responding to Power Outages and Floods
Lesikar, Bruce J.; Mechell, Justin; Alexander, Rachel
2008-10-23T23:59:59.000Z
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...
Proof of the outage probability conjecture for MISO channels
Abbe, Emmanuel; Telatar, Emre
2011-01-01T23:59:59.000Z
In Telatar 1999, it is conjectured that the covariance matrices minimizing the outage probability for MIMO channels with Gaussian fading are diagonal with either zeros or constant values on the diagonal. In the MISO setting, this is equivalent to conjecture that the Gaussian quadratic forms having largest tale probability correspond to such diagonal matrices. We prove here the conjecture in the MISO setting.
Collaboration Surfaces for Outage Control Centers Lars Hurlen
Deussen, Oliver
Collaboration Surfaces for Outage Control Centers Lars Hurlen Institute for Energy Technology Os Allé 7 1777 Halden, Norway +47 69212242 lars.hurlen@hrp.no Bojana Petkov Institute for Energy for Energy Technology Os Allé 7 1777 Halden, Norway +47 69215028 oystein.veland@hrp.no Gisle Andresen
Assessment of Critical Events Corridors through Multivariate Cascading Outages Analysis
Makarov, Yuri V.; Samaan, Nader A.; Diao, Ruisheng; Kumbale, Murali; Chen, Yousu; Singh, Ruchi; Green, Irina; Morgan, Mark P.
2011-10-17T23:59:59.000Z
Massive blackouts of electrical power systems in North America over the past decade has focused increasing attention upon ways to identify and simulate network events that may potentially lead to widespread network collapse. This paper summarizes a method to simulate power-system vulnerability to cascading failures to a supplied set of initiating events synonymously termed as Extreme Events. The implemented simulation method is currently confined to simulating steady state power-system response to a set of extreme events. The outlined method of simulation is meant to augment and provide a new insight into bulk power transmission network planning that at present remains mainly confined to maintaining power system security for single and double component outages under a number of projected future network operating conditions. Although one of the aims of this paper is to demonstrate the feasibility of simulating network vulnerability to cascading outages, a more important goal has been to determine vulnerable parts of the network that may potentially be strengthened in practice so as to mitigate system susceptibility to cascading failures. This paper proposes to demonstrate a systematic approach to analyze extreme events and identify vulnerable system elements that may be contributing to cascading outages. The hypothesis of critical events corridors is proposed to represent repeating sequential outages that can occur in the system for multiple initiating events. The new concept helps to identify system reinforcements that planners could engineer in order to 'break' the critical events sequences and therefore lessen the likelihood of cascading outages. This hypothesis has been successfully validated with a California power system model.
Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph
2003-11-01T23:59:59.000Z
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.
Outage Rate Regions for the MISO Interference Channel: Definitions and Interpretations
Lindblom, Johannes; Larsson, Erik G
2011-01-01T23:59:59.000Z
We consider the slow-fading two-user multiple-input single-output (MISO) interference channel (IC), where the receivers treat the interference as additive Gaussian noise. We study the rate points that can be achieved, allowing a non-zero outage probability. The points which meet the outage probability specification constitute a so-called outage rate region. There exist several definitions of the outage rate regions for the IC, as for the broadcast and the multiple-access channels. We give four definitions for the outage region of the MISO IC. The definitions differ on whether the rates are declared in outage jointly or individually and whether there is instantaneous or statistical channel state information (CSI) at the transmitters. For the statistical CSI scenario, we discuss how to find the outage probabilities in closed form. We provide interpretations of the definitions and compare the corresponding regions via analytical and numerical results.
Jindal, Nihar
1326 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 51, NO. 4, APRIL 2005 Outage Capacities, and Andrea Goldsmith, Fellow, IEEE Abstract--We derive the outage capacity region of an -user fading multiple information (CSI). The outage capacity region is implicitly obtained by deriving the outage probability region
Biondini, Gino
1958 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 28, NO. 13, JULY 1, 2010 Outage Statistics sampling and the cross-entropy method. The outage probability is then obtained combining these results with the outage map method, allowing the fraction of bands with unac- ceptable outage probabilities
Koksal, Can Emre
Secrecy Outage Capacity of Fading Channels Onur Gungor, Jian Tan, Can Emre Koksal, Hesham El under an outage constraint. More specifically, we extend the definition of outage capacity to account different assumptions on the transmitter CSI (Channel state information). First, we find the outage secrecy
Outage Constrained Secrecy Rate Maximization Using Cooperative Jamming
Luo, Shuangyu; Petropulu, Athina
2012-01-01T23:59:59.000Z
We consider a Gaussian MISO wiretap channel, where a multi-antenna source communicates with a single-antenna destination in the presence of a single-antenna eavesdropper. The communication is assisted by multi-antenna helpers that act as jammers to the eavesdropper. Each helper independently transmits noise which lies in the null space of the channel to the destination, thus creates no interference to the destination. Under the assumption that there is eavesdropper channel uncertainty, we derive the optimal covariance matrix for the source signal so that the secrecy rate is maximized subject to probability of outage and power constraints. Assuming that the eavesdropper channels follow zero-mean Gaussian model with known covariances, we derive the outage probability in a closed form. Simulation results in support of the analysis are provided.
Survey of tools for risk assessment of cascading outages
Papic, Milorad; Bell, Keith; Chen, Yousu; Dobson, Ian; Fonte, Louis; Haq, Enamul; Hines, Paul; Kirschen, Daniel; Luo, Xiaochuan; Miller, Stephen; Samaan, Nader A.; Vaiman, Marianna; Varghese, Matthew; Zhang, Pei
2011-10-01T23:59:59.000Z
Abstract-This paper is a result of ongoing activity carried out by Understanding, Prediction, Mitigation and Restoration of Cascading Failures Task Force under IEEE Computer Analytical Methods Subcommittee (CAMS). The task force's previous papers [1, 2] are focused on general aspects of cascading outages such as understanding, prediction, prevention and restoration from cascading failures. This is the second of two new papers, which extend this previous work to summarize the state of the art in cascading failure risk analysis methodologies and modeling tools. The first paper reviews the state of the art in methodologies for performing risk assessment of potential cascading outages [3]. This paper describes the state of the art in cascading failure modeling tools, documenting the view of experts representing utilities, universities and consulting companies. The paper is intended to constitute a valid source of information and references about presently available tools that deal with prediction of cascading failure events. This effort involves reviewing published literature and other documentation from vendors, universities and research institutions. The assessment of cascading outages risk evaluation is in continuous evolution. Investigations to gain even better understanding and identification of cascading events are the subject of several research programs underway aimed at solving the complexity of these events that electrical utilities face today. Assessing the risk of cascading failure events in planning and operation for power transmission systems require adequate mathematical tools/software.
Controlled Tripping of Overheated Lines Mitigates Power Outages
Pfitzner, René; Chertkov, Michael
2011-01-01T23:59:59.000Z
We study cascades of blackouts in the model of the Polish (transmission) power grid (2700 nodes and 3504 transmission lines). A cascade is initiated by a sufficiently severe initial contingency tripping. The cascade advances via sequential tripping of many more overheated lines (with the thermal limits exceeded), islanding loads and generators and eventually arriving at a fixed point with the surviving part of the system being power- flow-balanced and the rest of the system being outaged. Utilizing the quasi-static model for cascade propagation, introduced in our earlier study (Statistical Classification of Cascading Failures in Power Grids, IEEE PES GM 2011), we analyze how the severity of the cascade depends on the order of tripping overheated lines. Our main observation is that the order of tripping has a tremendous effect on the size of the resulting outage: the probability distribution function of the outage size is broad; moreover in many of the cases studied, picking an overheated line at random result...
Identifying Transformer Incipient Events for Maintaining Distribution System Reliability
such as fuse and relay protection. Over the years, various incipient fault detection techniques to prevent outages and reduce down times. Hence protecting a critical infrastructure. The faults that occur within the transformer protection zone are internal faults. Transformer internal faults can be divided
Study, outlines why outages go long, short, or on-time
Not Available
1993-09-01T23:59:59.000Z
A recent report by a nuclear industry professional, based on a survey of outage managers at US nuclear power plants, declares that [open quotes]preplanned outage schedules appear to be grossly inaccurate, and the outage management planners and schedulers do not have a grasp of the requirements and/or the resources needed to complete the actual activities on schedule.[close quotes] It declares that [open quotes]the scheduled duration of a planned outage must be realistic.[close quotes] The study identifies personnel, planning and scheduling, and equipment/hardware as [open quotes]the primary reasons why refueling outages and outage activities finished ahead of, right on, or behind schedule.[close quotes
Kahlon, Arshdeep S; Periyalwar, Shalini; Yanikomeroglu, Halim
2012-01-01T23:59:59.000Z
We show that, for independent interfering sources and a signal link with exponentially distributed received power, the total probability of outage can be decomposed as a simple expression of the outages from the individual interfering sources. We give a mathematical proof of this result, and discuss some immediate implications, showing how it results in important simplifications to statistical outage analysis. We also discuss its application to two active topics of study: spectrum sharing, and sum of interference powers (e.g., lognormal) analysis.
Draft!07"18"2011! 1 Turning the Tide on Outages1
Amin, S. Massoud
! Draft!07"18"2011! 1 Turning the Tide on Outages1 What are the true costs of implementing!programs!of!replacement,!rehabilitation!and!new!investment!in!the! U.S.!infrastructure.! ! Focusing!on!the!electric!power!sector,!the!power!outages!whether!the!carrying!capacity!or!safety!margin!will!exist! to!support!anticipated!demand!is!in!question.! ! To!assess!impacts!using!actual!electric!power!outage
MonteCarlo and Analytical Methods for Forced Outage Rate Calculations of Peaking Units
Rondla, Preethi 1988-
2012-10-26T23:59:59.000Z
-1 MONTECARLO AND ANALYTICAL METHODS FOR FORCED OUTAGE RATES CALCULATION OF PEAKING UNITS A Thesis by PREETHI RONDLA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...&M University through the Graduate Scholarship is gratefully acknowledged. v NOMENCLATURE FOR Forced Outage Rate LOLE Loss of Load Expectation HLOLE Hourly Loss of Load Expectation EFORd Equivalent Forced Outage Rate on Demand ? Failure Rate...
A Study of Outage Management Practices at Selected U.S. Nuclear Plants
Lin, James C. [ABSG Consulting Inc., Irvine, CA (United States)
2002-07-01T23:59:59.000Z
This paper presents insights gained from a study of the outage management practices at a number of U.S. nuclear plants. The objective of the study was to conduct an in-depth review of the current practices of outage management at these selected plants and identify important factors that have contributed to the recent success of their outage performance. Two BWR-4, three BWR-6, and two 3-loop Westinghouse PWR plants were selected for this survey. The results of this study can be used to formulate outage improvement efforts for nuclear plants in other countries. (author)
U.S. - Canada Power System Outage Task Force: Final Report on...
Broader source: Energy.gov (indexed) [DOE]
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...
Chilek, Kevin
2007-01-31T23:59:59.000Z
This certificate accompanies the Quality Counts program. 1 page. It comes in packages of 25 certificates....
Potomac River Project Outage Schedule Clarification | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasma |EfficiencyCR-B-99-02Contact on2009: ChuOverview of DOEChapterPotomac River Project Outage Schedule
Property:OutageMapURL | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a gHigh PlainsOttawa,Property Edit with form HistoryProperty EditNEPAPropertyformPropertyOutageMapURL
Analysis of allowed outage times at the Byron Generating Station
Cho, N.Z.; Chu, T.L.; Xue, D.; Bozoki, G.E.; Youngblood, R.W.
1986-06-01T23:59:59.000Z
This report provides a critical review of the methods used in WCAP-10526 which proposed that allowed outage times (AOTs) for a number of safety systems in the Byron Generating Station be increased from 3 to 7 days, and presents an independent estimate of the change in risk involved in the AOT extension. It also presents results of several sensitivity studies. Also included are a survey of methods that can be used to evaluate nuclear power plant technical specifications and a description of pairwise importance measures. 53 tabs.
Policy on Building use during Ventilation Outage: School of Science Roger Bacon Hall and Morrell is not functioning as designed. A common cause of inadequate building ventilation is a power outage. Laboratory
Number and propagation of line outages in cascading events in electric power transmission systems
Dobson, Ian
Number and propagation of line outages in cascading events in electric power transmission systems that progressively weakens the system. Large electric power transmission systems occasionally have cascading failures of transmission lines. The multiple mechanisms involved these cascading outages are many and varied, and the power
POWER SYSTEM LINE OUTAGE DETECTION AND IDENTIFICATION --A QUICKEST CHANGE DETECTION APPROACH
Liberzon, Daniel
POWER SYSTEM LINE OUTAGE DETECTION AND IDENTIFICATION -- A QUICKEST CHANGE DETECTION APPROACH Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign ABSTRACT A method to detect and isolate power system transmission line outages in near real-time is proposed
On PMU Location Selection for Line Outage Detection in Wide-area Transmission Networks
Zhao, Yue
measurements. Index Terms--Phasor measurement unit, location selection, outage detection, transmission networks control and data acquisition) systems. Phasor measurement units (PMUs), as compared to conventional locations to collect voltage phase angle measurements for detecting line outages in wide-area transmission
Quantitative evaluation of savings in outage costs by using emergency actions strategy
Akhtar, A.; Asuhaimi, A.; Shaibon, H. [Univ. Teknologi Malaysia, Johor Bharu (Malaysia); Lo, K.L. [Univ. of Strathclyde, Glasgow (United Kingdom)
1995-12-31T23:59:59.000Z
This paper presents the results of a study carried out to assess the savings in consumer outage costs that can be accrued as a result of implementing Emergency Actions Strategy. The use of Emergency Actions Strategy plays a significant role in curtailing the consumer outage costs ensuing from unreliable electric service. In order to calculate the savings in outage costs, the probabilistic framework of the frequency and duration method has been used in conjunction with emergency actions. At first, the outage costs of various consumer sectors are estimated without considering the emergency actions. Secondly, the consumer outage costs are calculated by combining the frequency and duration method, and unserved energy with the emergency actions invoked. The results of the savings in consumer outage costs that can be accrued by utilizing Emergency Actions Strategy are presented for a synthetic system. The results of the study show that substantial savings in consumer outage costs are obtained by devising and implementing emergency actions strategy in situations of capacity outages. The results are of particular relevance and utility to the underdeveloped and developing countries where capacity shortages occur quite frequently. These results also suggest the importance of emergency actions strategy for electric utilities in reducing the consumer economic losses arising from unreliable electric service.
Detecting Internet Outages with Active Probing USC/ISI Technical Report ISI-TR-672, May 2011
Heidemann, John
Detecting Internet Outages with Active Probing USC/ISI Technical Report ISI-TR-672, May 2011 Lin on the Internet, understanding its reliability is more important than ever. Network outages vary in scope and cause, from the intentional shutdown of the Egyptian Inter- net in February 2011, to outages caused
Kansas, University of
Variation of PMD-induced Outage Rates and Durations with Link Length on Buried Standard Single, Overland Park, Kansas Abstract: From first-order polarization-mode dispersion (PMD) outage analysis using that the outage rates increase monotonically with link length, although not linearly. © 2005 Optical Society
Loyka, Sergey
3232 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 54, NO. 7, JULY 2008 On the Outage Capacity in the amplify-and-forward mode. This paper inves- tigates instantaneous signal-to-noise ratio (SNR) and outage. This SNR, as well as the outage capacity, decreases with correlation. For a large number of transmit
Sidiropoulos, Nikolaos D.
Beamforming for Minimum Outage Vassilis Ntranos, Nicholas D. Sidiropoulos, and Leandros Tassiulas Abstract--The multicast beamforming problem is considered from the viewpoint of minimizing outage probability subject (locations) and variances (spreads). It is shown that minimizing outage probability subject to a transmit
Nosratinia, Aria
IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 52, NO. 2, FEBRUARY 2006 375 Outage Analysis of Coded-based methods. This work develops expressions for outage probability of coded cooperation. In this work, each constraints. Outage expressions confirm that full diversity is achieved by coded cooperation. This shows
Kim, Il-Min
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 10, NO. 2, FEBRUARY 2011 407 Outage Probability-duplex mode. For this system, we first derive a tight lower bound of outage probability, which is very close to the exact outage probability in the whole signal-to-noise ratio (SNR) range irrespective of the values
Fu, Yong
Outage Distribution Factors Jiachun Guo, Yong Fu, Member, IEEE, Zuyi Li, Member, IEEE, and Mohammad Shahidehpour, Fellow, IEEE Abstract--Line outage distribution factors (LODFs) are utilized to perform of LODFs, especially with multiple-line outages, could speed up contingency analyses and improve
Elkashlan, Maged
2120 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 59, NO. 5, JUNE 2010 Outage Probability and exact analysis is conducted to analyze the outage probability of MRNs under dissimilar Nakagami-m fading conditions. More specifically, we derive new closed-form expressions for the outage probability and the prob
Kim, Il-Min
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 9, NO. 3, MARCH 2010 1139 Outage Probability--The outage probability of multi-hop amplify-and- forward relay systems with multiple relays is analyzed. Previ- ously, the outage probability of the two-hop system with multiple relays had been analyzed
Haenggi, Martin
4350 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 8, NO. 8, AUGUST 2009 Outage, Local Throughput, and Capacity of Random Wireless Networks Martin Haenggi, Senior Member, IEEE Abstract--Outage parameter, the so- called spatial contention, is defined. It measures the slope of the outage probability
Su, Weifeng
IEEE SIGNAL PROCESSING LETTERS, VOL. 14, NO. 6, JUNE 2007 377 Outage Analysis and Optimal Power. Ray Liu, Fellow, IEEE Abstract--In this letter, a novel approach for outage probability analysis on that approximation, an outage probability bound is derived which proves to be tight at high SNR. Based on the derived
Loyka, Sergey
IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 59, NO. 6, JUNE 2011 1731 On Outage Probability antennas and the relays have a single one. Compact closed-form expressions are obtained for the outage probability under i.i.d. and correlated Rayleigh-fading links. Low-outage approxima- tions are derived, which
Detecting Internet Outages with Precise Active Probing USC/ISI Technical Report ISI-TR-678b
Heidemann, John
Detecting Internet Outages with Precise Active Probing (extended) USC/ISI Technical Report ISI Japanese earthquake, to the thousands of small outages caused by localized accidents, and human error, motivating our new system to detect network outages by active probing. We show that a single computer can
Dai, Huaiyu
On the Duality between Outage Capacity and Multiuser Scheduling Gain for MIMO Systems on individual link outage capacity and multiuser scheduling gain for MIMO systems are quantified, which admits fading, while significantly limits the channel outage capacity as expected, actually enhances
Barry, John R.
IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 54, NO. 4, APRIL 2008 1423 Approaching the Zero-Outage-defined outage capacity. A transmitter with channel knowledge can achieve this capacity by a combination of eigen to approach the zero-outage capacity of the MIMO-OFDM channel; it is sufficient instead to use a combination
Yýlmaz, Özgür
IEEE TRANSACTIONS ON COMMUNICATIONS, ACCEPTED FOR PUBLICATION 1 Calculating Outage Probability channels present a realistic model in many communication scenarios. We propose a method by which the outage generating functions helps obtain outage probabilities in various cases such as wideband noise jamming
Firenze, Università degli Studi di
Impact of outages on GPRS service availability General Packet Radio Service has been developed to those of outage is not a satisfactory measure to know. During outages, there is an accumulation of users to the users. A study on the impact of outages on GPRS service availability is being conducted in the framework
Blostein, Steven D.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 2, NO. 5, SEPTEMBER 2003 865 Exact Outage- plementation complexity. We present a new outage performance analysis for EGC in mobile cellular radio systems of outage and 2) the existing method can lead to overly op- timistic outage performance prediction
Fast Detection and Mitigation of Cascading Outages in the Power System
Pang, Chengzong
2012-02-14T23:59:59.000Z
This dissertation studies the causes and mechanism of power system cascading outages and proposes the improved interactive scheme between system-wide and local levels of monitoring and control to quickly detect, classify and mitigate the cascading...
Fast Detection and Mitigation of Cascading Outages in the Power System
Pang, Chengzong
2012-02-14T23:59:59.000Z
This dissertation studies the causes and mechanism of power system cascading outages and proposes the improved interactive scheme between system-wide and local levels of monitoring and control to quickly detect, classify and mitigate the cascading...
Tritium Reduction and Control in the Vacuum Vessel During TFTR Outage and Decommissioning *
in maintaining ALARA (As Low As Reasonably Achievable) exposures to tritium during the 1996 outage. These systems of the free tritium in the vacuum vessel atmosphere was essential for achieving ALARA in personnel exposure
OTRA-THS MAC to reduce Power Outage Data Collection Latency in a smart meter network
Garlapati, Shravan K [ORNL] [ORNL; Kuruganti, Phani Teja [ORNL] [ORNL; Buehrer, Richard M [ORNL] [ORNL; Reed, Jeffrey H [ORNL] [ORNL
2014-01-01T23:59:59.000Z
The deployment of advanced metering infrastructure by the electric utilities poses unique communication challenges, particularly as the number of meters per aggregator increases. During a power outage, a smart meter tries to report it instantaneously to the electric utility. In a densely populated residential/industrial locality, it is possible that a large number of smart meters simultaneously try to get access to the communication network to report the power outage. If the number of smart meters is very high of the order of tens of thousands (metropolitan areas), the power outage data flooding can lead to Random Access CHannel (RACH) congestion. Several utilities are considering the use of cellular network for smart meter communications. In 3G/4G cellular networks, RACH congestion not only leads to collisions, retransmissions and increased RACH delays, but also has the potential to disrupt the dedicated traffic flow by increasing the interference levels (3G CDMA). In order to overcome this problem, in this paper we propose a Time Hierarchical Scheme (THS) that reduces the intensity of power outage data flooding and power outage reporting delay by 6/7th, and 17/18th when compared to their respective values without THS. Also, we propose an Optimum Transmission Rate Adaptive (OTRA) MAC to optimize the latency in power outage data collection. The analysis and simulation results presented in this paper show that both the OTRA and THS features of the proposed MAC results in a Power Outage Data Collection Latency (PODCL) that is 1/10th of the 4G LTE PODCL.
Shawn St. Germain; Kenneth Thomas; Ronald Farris; Jeffrey Joe
2014-09-01T23:59:59.000Z
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.
Li, L.
2009-01-01T23:59:59.000Z
phase transformation and biomass accumulation associatedMineral Transformation and Biomass Accumulation Associatedof new mineral phases and biomass. Word count: 5496 (text) +
Wang, Kun-Yu; Chang, Tsung-Hui; Ma, Wing-Kin; Chi, Chong-Yung
2011-01-01T23:59:59.000Z
In this paper we consider a probabilistic signal-to-interference and-noise ratio (SINR) constrained problem for transmit beamforming design in the presence of imperfect channel state information (CSI), under a multiuser multiple-input single-output (MISO) downlink scenario. In particular, we deal with outage-based quality-of-service constraints, where the probability of each user's SINR not satisfying a service requirement must not fall below a given outage probability specification. The study of solution approaches to the probabilistic SINR constrained problem is important because CSI errors are often present in practical systems and they may cause substantial SINR outages if not handled properly. However, a major technical challenge is how to process the probabilistic SINR constraints. To tackle this, we propose a novel relaxation- restriction (RAR) approach, which consists of two key ingredients-semidefinite relaxation (SDR), and analytic tools for conservatively approximating probabilistic constraints. Th...
Coordinated Beamforming for Multiuser MISO Interference Channel under Rate Outage Constraints
Li, Wei-Chiang; Lin, Che; Chi, Chong-Yung
2011-01-01T23:59:59.000Z
This paper studies the coordinated beamforming design problem for the multiple-input single-output (MISO) interference channel, assuming only channel distribution information (CDI) at the transmitters. For a given requirement on the rate outage probability for receivers, we aim to maximize the system utility (e.g., the weighted sum rate, weighted proportional fairness rate, and the weighed harmonic mean rate) subject to the rate outage constraints and individual power constraints. The outage constraints, however, lead to a complicated, nonconvex structure for the considered beamforming design problem and make the optimization problem difficult to handle. While this nonconvex optimization problem can be solved in an exhaustive search manner, this brute-force approach is only feasible when the number of transmitter-receiver pairs is small. For a system with a large number of transmitter-receiver pairs, computationally efficient alternatives are necessary. The focus of this paper is hence on the design of such e...
Lotze, Heike K.
such as winter storms or power outages will, from time to time, require the University to reduce or restrict its of individual units' operations. For example, a power outage may not affect all campuses
Fast counting electronics for neutron coincidence counting
Swansen, James E. (Los Alamos, NM)
1987-01-01T23:59:59.000Z
An amplifier-discriminator is tailored to output a very short pulse upon an above-threshold input from a detector which may be a .sup.3 He detector. The short pulse output is stretched and energizes a light emitting diode (LED) to provide a visual output of operation and pulse detection. The short pulse is further fed to a digital section for processing and possible ORing with other like generated pulses. Finally, the output (or ORed output ) is fed to a derandomizing buffer which converts the rapidly and randomly occurring pulses into synchronized and periodically spaced-apart pulses for the accurate counting thereof. Provision is also made for the internal and external disabling of each individual channel of amplifier-discriminators in an ORed plurality of same.
Fast counting electronics for neutron coincidence counting
Swansen, J.E.
1985-03-05T23:59:59.000Z
An amplifier-discriminator is tailored to output a very short pulse upon an above-threshold input from a detector which may be a /sup 3/He detector. The short pulse output is stretched and energizes a light emitting diode (LED) to provide a visual output of operation and pulse detection. The short pulse is further fed to a digital section for processing and possible ORing with other like generated pulses. Finally, the output (or ORed output) is fed to a derandomizing buffer which converts the rapidly and randomly occurring pulses into synchronized and periodically spaced-apart pulses for the accurate counting thereof. Provision is also made for the internal and external disabling of each individual channel of amplifier-discriminators in an ORed plurality of same.
Power Outages Update: Post-Tropical Cyclone Sandy | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasma |EfficiencyCR-B-99-02Contact on2009: ChuOverview of DOEChapterPotomac River Project OutagePower Outages
Nuclear Safety Risk Management in Refueling Outage of Qinshan Nuclear Power Plant
Meijing Wu; Guozhang Shen [Qinshan Nuclear power company (China)
2006-07-01T23:59:59.000Z
The NPP is used to planning maintenance, in-service inspection, surveillance test, fuel handling and design modification in the refueling outage; the operator response capability will be reduced plus some of the plant systems out of service or loss of power at this time. Based on 8 times refueling outage experiences of the Qinshan NPP, this article provide some good practice and lesson learned for the nuclear safety risk management focus at four safety function areas of Residual Heat Removal Capability, Inventory Control, Power availability and Reactivity control. (authors)
Gray, Jeffrey J.
on a development server, which is prone to outages, updates, etc. There may be times when the sites are unavailable
; 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
Franceschetti, Massimo
2304 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 55, NO. 5, MAY 2009 Service-Outage-Based Power is considered. For a fixed basic rate r0, a service outage occurs when the instantaneous transmission rate falls to peak and average trans- mitter power constraints and a constraint on the service outage probability
Chilek, Kevin; Gregory, Elizabeth
2004-01-27T23:59:59.000Z
This exhibitor card identifies young livestock exhibitors as participants in the Quality Counts! program. The card is printed with a leather-style background on heavy card stock. It features the 4-H clover and the FFA logo, as well as the logo...
Optimal Power Control in CDMA Networks with Constraints on Outage Probability
Paris-Sud XI, Université de
power control al- gorithm is developed for large systems of users. Simulation results are presented of this previous work deals with invariant channel models. Any power control scheme that attempts to follow fastOptimal Power Control in CDMA Networks with Constraints on Outage Probability John Papandriopoulos
Application of Hybrid Geo-Spatially Granular Fragility Curves to Improve Power Outage Predictions
Fernandez, Steven J [ORNL; Allen, Melissa R [ORNL; Omitaomu, Olufemi A [ORNL; Walker, Kimberly A [ORNL
2014-01-01T23:59:59.000Z
Fragility curves depict the relationship between a weather variable (wind speed, gust speed, ice accumulation, precipitation rate) and the observed outages for a targeted infrastructure network. This paper describes an empirical study of the county by county distribution of power outages and one minute weather variables during Hurricane Irene with the objective of comparing 1) as built fragility curves (statistical approach) to engineering as designed (bottom up) fragility curves for skill in forecasting outages during future hurricanes; 2) county specific fragility curves to find examples of significant deviation from average behavior; and 3) the engineering practices of outlier counties to suggest future engineering studies of robustness. Outages in more than 90% of the impacted counties could be anticipated through an average or generic fragility curve. The remaining counties could be identified and handled as exceptions through geographic data sets. The counties with increased or decreased robustness were characterized by terrain more or less susceptible to persistent flooding in areas where above ground poles located their foundations. Land use characteristics of the area served by the power distribution system can suggest trends in the as built power grid vulnerabilities to extreme weather events that would be subjects for site specific studies.
Power Line Damage, Electrical Outages Reduced in the ''Sleet Belt'': NICE3 Steel Project Fact Sheet
NONE
2000-04-25T23:59:59.000Z
The AR Windamper System was developed through a grant from the Inventions and Innovation Program, to protect power transmission lines in sleet belt states and provinces by eliminating the ''galloping'' phenomenon. Wind damping products minimize power outages and reduce repair costs to transmission lines.
Outage Analysis of Multi-node Amplify-and-Forward Relay Networks
Liu, K. J. Ray
Outage Analysis of Multi-node Amplify-and-Forward Relay Networks Karim G. Seddik, Ahmed K. Sadek, Weifeng Su , and K. J. Ray Liu Department of Electrical and Computer Engineering, and Institute}@eng.umd.edu Department of Electrical Engineering, State University of New York (SUNY) at Buffalo, Buffalo, NY 14260, USA
Outage Performance of a Multiuser Distributed Antenna System in Underwater Acoustic Channels
Wang, Zhengdao
1 Outage Performance of a Multiuser Distributed Antenna System in Underwater Acoustic Channels Zhaohui Wang, Shengli Zhou, Zhengdao Wang, Josko Catipovic§ and Peter Willett Dept. of Electrical and Computer Engineering, University of Connecticut, Storrs, CT 06269, USA Dept. of Electrical and Computer
The Information-Outage Probability of Finite-Length Codes over AWGN Channels
Valenti, Matthew C.
The Information-Outage Probability of Finite-Length Codes over AWGN Channels David Buckingham and Matthew C. Valenti Lane Department of Computer Science and Electrical Engineering West Virginia University March 19, 2008 Buckingham and Valenti ( Lane Department of Computer Science and Electrical Engineering
The Approximation of Outage Probability and the Trade-off between Capacity and Diversity for the
Scharf, Louis
The Approximation of Outage Probability and the Trade-off between Capacity and Diversity for the Frequency-Selective Channel Zhifei Fan Department of Electrical and Computer Engineering Colorado State University Fort Collins, CO 80523 Email: fanz@engr.colostate.edu Louis Scharf Department of Electrical
An Efficient Energy Curtailment Scheme For Outage Management in Smart Grid
Durrani, Salman
An Efficient Energy Curtailment Scheme For Outage Management in Smart Grid Wayes Tushar§, Jian--In this paper an efficient energy curtailment scheme is studied, which enables the power users of a smart grid. Considering the advantages of a two-way communications infrastructure for any future smart grid, a non
Mitigating Macro-Cell Outage in LTE-Advanced Deployments Rajarajan Sivaraj
Greenberg, Albert
conditions. With planned maintenance, the operator in many cases needs to take the eNB offline in order (eNB). Therefore, the network operator's response to outage scenarios needs to be fast and efficient characteristics and residual eNodeB resources, after serving its current traffic load. Assuming statistical
Prediction-Based Recovery from Link Outages in On-Board Mobile Communication Networks
Libman, Lavy
, such as those pro- posed for (and employed in) public transport vehicles, users are connected to a local network transport routes, and their repetitive nature, allows a certain degree of prediction of impending link extension known as Freeze-TCP, we study how the performance of the protocol depends on the outage prediction
Asymptotic Outage Performance of Power Allocation in Block-Fading Channels
Guillén i Fàbregas, Albert
Asymptotic Outage Performance of Power Allocation in Block-Fading Channels Khoa D. Nguyen Institute for Telecommunications Research University of South Australia SA 5095, Australia dangkhoa guillen@ieee.org Lars K. Rasmussen Institute for Telecommunications Research University of South Australia
Outage Probability of MISO Broadcast Systems with Noisy Channel Side Information
Lim, Teng Joon
Outage Probability of MISO Broadcast Systems with Noisy Channel Side Information Alon Shalev output (MISO) systems. However, these schemes generally require perfect channel information) of a linear zero forcing transmitter, operating in a fading MISO broadcast channel. We consider a rectangular
96 IEEE power & energy magazine march/april 2005 THE MASSIVE POWER OUTAGE OF
Amin, S. Massoud
--settle for a substan- dard electricity infrastructure. We absolutely can meet the needs of a pervasively digital valued at US$358 billion. The electric power grid was historically operated by separate utilities; each96 IEEE power & energy magazine march/april 2005 T THE MASSIVE POWER OUTAGE OF August 2003
service. The reliability of electrical power is important because many other infrastructures are directly of the electric power distribution infrastructure. There are many studies on the vulnerability of infrastructuresEnvironmental determinants of unscheduled residential outages in the electrical power distribution
Management of inventory to reduce outages in supply feeder
Mielczarski, W.; Khan, M.E.; Sugianto, L.F. [Monash Univ., Clayton, Victoria (Australia)
1995-12-31T23:59:59.000Z
The paper presents an application of Dynamic Programming to optimal allocation of resources in spare items to increase reliability of supply. System Average Interruption Duration Index (SAIDI) has been selected as the performance index. Distribution transformers have been selected to investigate applicability of the proposed approach to distribution network equipment. The paper provides an analysis of relationships between the index assumed and parameters of distribution systems. Results of optimization for four levels of budget limitation show that resources can be allocated in the best way by Dynamic Programming but results depend on the assumed performance index and its parameters.
Lee, Yong Hoon
is derived. The DMT and outage performance are also analyzed for Rician mul- tiple-inputsingle-output (MISO- icantly improve link reliability by transmit diversity such as spacetime coding [4], [5]. However
Li, Wei-Chiang; Lin, Che; Chi, Chong-Yung
2010-01-01T23:59:59.000Z
This paper considers weighted sum rate maximization of multiuser multiple-input single-output interference channel (MISO-IFC) under outage constraints. The outage-constrained weighted sum rate maximization problem is a nonconvex optimization problem and is difficult to solve. While it is possible to optimally deal with this problem in an exhaustive search manner by finding all the Pareto-optimal rate tuples in the (discretized) outage-constrained achievable rate region, this approach, however, suffers from a prohibitive computational complexity and is feasible only when the number of transmitter-receive pairs is small. In this paper, we propose a convex optimization based approximation method for efficiently handling the outage-constrained weighted sum rate maximization problem. The proposed approximation method consists of solving a sequence of convex optimization problems, and thus can be efficiently implemented by interior-point methods. Simulation results show that the proposed method can yield near-optim...
Final Remediation Report for the K-Area Bingham Pump Outage Pit (643-1G)
Morganstern, M.
2002-06-18T23:59:59.000Z
The K-Area Bingham Pump Outage Pit (K BPOP) Building Number 643-1G, is situated immediately south and outside the K-Reactor fence line and is approximately 400 feet in length and 60 feet in width. For the K BPOP operable unit, the Land Use Control (LUC) objectives are to prevent contact, removal, or excavation of buried waste in the area and to preclude residential use of the area.
Feasibility Study for the K-Area Bingham Pump Outage Pit (643-1G)
Palmer, E.R. [Westinghouse Savannah River Company, AIKEN, SC (United States)
1997-05-01T23:59:59.000Z
The K-Area Bingham Pump Outage Pit (KBPOP) is one of four BPOP areas at Savannah River Site (SRS), collectively referred to as the BPOP waste unit group. This Feasibility Study (FS) of Remedial Alternatives serves as the lead FS for the BPOP waste unit group. This section identifies the purpose and scope of the FS and presents site background information summarized from the Final Remedial Investigation Report with Baseline Risk Assessment (RI/BRA) WSRC-RP- 95-1555, Rev. 1.2 (WSRC 1997).
MATCASC: A tool to analyse cascading line outages in power grids
Koç, Yakup; Araujo, Nuno A M; Warnier, Martijn
2013-01-01T23:59:59.000Z
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.
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA Journey Inside the Complex(MARSSIM) SiteOrganization OrganizationOtherOur AlumniDustyOurOurOut
Not Available
2008-09-01T23:59:59.000Z
Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its market transformation subprogram.
Mignotte, Max
(b) TransformÃ©e de Hough (Espace (s, #)) (c) Principales lignes reconstruites 5 #12; TRANSFORMÃ?E DE
Mirror Symmetry, D-Branes and Counting Holomorphic Discs
Mina Aganagic; Cumrun Vafa
2000-12-05T23:59:59.000Z
We consider a class of special Lagrangian subspaces of Calabi-Yau manifolds and identify their mirrors, using the recent derivation of mirror symmetry, as certain holomorphic varieties of the mirror geometry. This transforms the counting of holomorphic disc instantons ending on the Lagrangian submanifold to the classical Abel-Jacobi map on the mirror. We recover some results already anticipated as well as obtain some highly non-trivial new predictions.
Drewes, Frank
Proc. AGTIVE'99, to appear in LNCS Graph Transformation Modules and their Composition ? Frank,knirsch,kreo,kuskeg@informatik.uni-bremen.de Abstract. In this paper, we investigate the notion of transformation modules as a structuring principle. Based on the notion of transformation units, a concept that allows to specify binary relations on graphs
transformations: representations
Nguyen, Dat H.
Overview 1. Number transformations: from one base to another 2. Integer representations 3. Real rate, caches... #12; ECS 50, Discussion on 4/25 2 Integer Transformation: From Decimal to Binary Let, Discussion on 4/25 3 Integer Transformation: From Binary to Decimal Compute the weight of each digit position
Gering, Jon C.
Transformative Experiences Internships & Field Schools Honors & Research Faculty Notables Alumni have at least one poten- tially transformative experi- ence - an opportunity to de- sign and carry out to be transformational are study abroad, internships, service learning, research, student-led learning, and lead- ership
Letendre, Steven E.; Perez, Richard
2006-07-15T23:59:59.000Z
Thanks to new solar resource assessment techniques using cloud cover data available from geostationary satellites, it is apparent that grid-connected PV installations can serve to enhance electric grid reliability, preventing or hastening recovery from major power outages and serving to mitigate extreme price spikes in wholesale energy markets. (author)
Kosonen, M.; Hakola, M. [Teollisuuden Voima Oyj, F- 27160 Eurajoki (Finland)
2012-07-01T23:59:59.000Z
Teollisuuden Voima Oyj (TVO) is a non-listed public company founded in 1969 to produce electricity for its stakeholders. TVO is the operator of the Olkiluoto nuclear power plant. TVO follows the principle of continuous improvement in the operation and maintenance of the Olkiluoto plant units. The PELE project (Plant Efficiency Improvement and Lifetime Extension), mainly completed during the annual outages in 2010 and 2011, and forms one part of the systematic development of Olkiluoto units. TVO maintains a long-term development program that aims at systematically modernizing the plant unit systems and equipment based on the latest technology. According to the program, the Olkiluoto 1 and Olkiluoto 2 plant units are constantly renovated with the intention of keeping them safe and reliable, The aim of the modernization projects is to improve the safety, reliability, and performance of the plant units. PELE project at Olkiluoto 1 was done in 2010 and at Olkiluoto 2 in 2011. The outage length of Olkiluoto 1 was 26 d 12 h 4 min and Olkiluoto 2 outage length was 28 d 23 h 46 min. (Normal service-outage is about 14 days including refueling and refueling-outage length is about seven days. See figure 1) The PELE project consisted of several single projects collected into one for coordinated project management. Some of the main projects were as follows: - Low pressure turbines: rotor, stator vane, casing and turbine instrumentation replacement. - Replacement of Condenser Cooling Water (later called seawater pumps) pumps - Replacement of inner isolation valves on the main steam lines. - Generator and the generator cooling system replacement. - Low voltage switchgear replacement. This project will continue during future outages. PELE was a success. 100 TVO employees and 1500 subcontractor employees participated in the project. The execution of the PELE projects went extremely well during the outages. The replacement of the low pressure turbines and seawater pumps improved the efficiency of the plant units, and a power increase of nearly 20 MW was achieved at both plant units. PELE wonderfully manifests one of the strategic goals of our company; developing the competence of our in-house personnel by working in projects. (authors)
Counting Out Loud Counting Objects Give-A-Number Identification
Stanford, Kyle
Characteristics Low-Income Group n = 75 Higher-Income Group n = 45 Mean age at first session (yrs; mos) 4;8 4 ResultsMethod "One, two, three, four, five, six, seven, eight, nine, ten." Counting Objects Give indicate better performance. Legend Low-Income Group Higher-Income Group Scaffolded Number Line * p
Probabilistic analysis of allowed outage times relaxation at a PWR plant
Cho, N.; Chu, T.; Xue, D.; Bozoki, G.; Youngblood, R.
1986-01-01T23:59:59.000Z
Technical Specifications (TS) in a nuclear power plant are specific requirements on its day-to-day operation, designed to protect public health and safety. Two primary aspects of the TS are (1) limiting conditions of operation (LCO) with allowed outage times (AOTs) and (2) surveillance testing intervals (STIs). In recent years, there has been growing interest in the nuclear community in reexamining the TS. One of the reasons is that a significant portion of reactor downtime (plant unavailability) is attributable to the strict TS. Existing TS were derived from engineering judgement based on deterministic review; they were not directly risk-based, and their efficacy in enhancing public safety is difficult to establish. This paper presents a summary of a critical review of the Westinghouse report which proposed that AOTs for a number of safety systems at the Byron Generating Station be increased from 3 to 7 days.
Reducing Duration of Refueling Outage by Optimizing Core Design and Shuffling Sequence
Wakker, P.H.; Verhagen, F.C.M.; Bloois, J.T. van; Sutton, W.R. III
2005-07-15T23:59:59.000Z
Reducing the duration of refueling outage is possible by optimizing the core design and the shuffling sequence. For both options software tools have been developed that have been applied to the three most recent cycles of the Borssele plant in the Netherlands. Applicability of the shuffling sequence optimization to boiling water reactors has been demonstrated by a comparison to a recent shuffle plan used in the Hatch plant located in the United States. Their uses have shown that both core design and shuffling sequence optimization can be exploited to reduce the time needed for reloading a core with an in-core shuffling scheme. Ex-core shuffling schemes for pressurized water reactors can still have substantial benefit from a core design using a minimized number of insert shuffles.
Fuel Cell Technologies Publication and Product Library (EERE)
This Fuel Cell Technologies Program fact sheet outlines current status and challenges in the market transformation of hydrogen and fuel cell technologies.
Multivariate Counting Processes By Mathias Zocher
Schmidt, Klaus D.
Multivariate Counting Processes By Mathias Zocher Fachrichtung Mathematik Technische Universit the recent development of the transition from univariate models to multivariate models, this paper considers multivariate counting processes. Multivariate versions of the Poisson process and the mixed Poisson process
Count-doubling time safety circuit
Rusch, Gordon K. (Downers Grove, IL); Keefe, Donald J. (Lemont, IL); McDowell, William P. (Downers Grove, IL)
1981-01-01T23:59:59.000Z
There is provided a nuclear reactor count-factor-increase time monitoring circuit which includes a pulse-type neutron detector, and means for counting the number of detected pulses during specific time periods. Counts are compared and the comparison is utilized to develop a reactor scram signal, if necessary.
Plant Outage Time Savings Provided by Subcritical Physics Testing at Vogtle Unit 2
Cupp, Philip [Southern Nuclear Company (United States); Heibel, M.D. [Westinghouse Electric Company, LLC (United States)
2006-07-01T23:59:59.000Z
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)
Resource allocation for semi-elastic applications with outage constraints in cellular networks
Yang, C; Jordan, S
2015-01-01T23:59:59.000Z
allocation, by transforming the objective functions usingallocation for video using sigmoid utility functions,function of instantaneous rate, and thus propose resource allocation
SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations
Zacks, Jeffrey M.
SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations Multiple Systems for Spatial Imagery: Transformations of Objects and Bodies Jeffrey M. Zacks* and Barbara Tversky * Washington COGNITION & COMPUTATION #12;SPATIAL TRANSFORMATIONS 2 Abstract Problem-solving often requires imagining
Fourier Transform Pairs The Fourier transform transforms a function of
Masci, Frank
Fourier Transform Pairs The Fourier transform transforms a function of time, f(t), into a function of frequency, F(s): F {f(t)}(s) = F(s) = Z - f(t)e- j2st dt. The inverse Fourier transform transforms a func. The inverse Fourier transform of the Fourier trans- form is the identity transform: f(t) = Z - Z - f()e- j2s
The Laplace Transform 1 Laplace transform and inverse transform
Yengulalp, Lynne
The Laplace Transform Name: 1 Laplace transform and inverse transform Definition. Let f(t) be a function defined for t 0. Then the integral L {f(t)} = 0 e-st f(t)dt is said to be the Laplace transform of f provided the integral converges. Fill in the following Laplace transforms. L {tn } = L {eat } = L
Low Background Counting At SNOLAB
Lawson, Ian; Cleveland, Bruce [SNOLAB, 1039 Regional Rd 24, Lively, ON P3Y 1N2 (Canada)
2011-04-27T23:59:59.000Z
It is a continuous and ongoing effort to maintain radioactivity in materials and in the environment surrounding most underground experiments at very low levels. These low levels are required so that experiments can achieve the required detection sensitivities for the detection of low-energy neutrinos, searches for dark matter and neutrinoless double-beta decay. SNOLAB has several facilities which are used to determine these low background levels in the materials and the underground environment. This proceedings will describe the SNOLAB High Purity Germanium Detector which has been in continuous use for the past five years and give results of many of the items that have been counted over that period. Brief descriptions of SNOLAB's alpha-beta and electrostatic counters will be given, and the radon levels at SNOLAB will be discussed.
Fourier Transform Quantum State Tomography
Mohammadreza Mohammadi; Agata M. Branczyk; Daniel F. V. James
2013-01-17T23:59:59.000Z
We propose a technique for performing quantum state tomography of photonic polarization-encoded multi-qubit states. Our method uses a single rotating wave plate, a polarizing beam splitter and two photon-counting detectors per photon mode. As the wave plate rotates, the photon counters measure a pseudo-continuous signal which is then Fourier transformed. The density matrix of the state is reconstructed using the relationship between the Fourier coefficients of the signal and the Stokes' parameters that represent the state. The experimental complexity, i.e. different wave plate rotation frequencies, scales linearly with the number of qubits.
Aoki, K. (Hiroshima Univ., Higashihiroshima (JP)); Kuwabara, H. (Kinki Univ., Kure (JP)); Satoh, T. (Hiroshima Univ., Higashihiroshima (JP)); Kanezashi, M. (Aichi Institute of Technology, Toyota (JP))
1988-10-01T23:59:59.000Z
This paper presents a systematic and practical algorithm for load balancing of transformers and feeders by automatic sectionalizing switch operation in large scale distribution systems of radial type. The algorithm is developed by extending an approximation algorithm for load transfer of desired two transformers. The algorithm proposed here is applicable to operations not only in normal state, but also in scheduled and failure outage states. Computational experience on a real large scale system has indicated that the algorithm is valid and effective for practical operations.
Transformers Transformer device used to raise (for
Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University
Transformers Transformer device used to raise (for transmission) and lower (for use) the ac with different #s of turns #12;Transformers Alternating primary current induces alternating magnetic flux in iron dt d NV B PP -= dt d NV B SS -= S S P P N V N V = #12;Transformers Transformation of voltage
Hough Transform Common Names: Hough transform
Masci, Frank
Hough Transform Common Names: Hough transform Brief Description The Hough transform is a technique that the desired features be specified in some parametric form, the classical Hough transform is most commonly used for the detection of regular curves such as lines, circles, ellipses, etc. A generalized Hough transform can
Low Background Counting at LBNL
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Smith, A. R.; Thomas, K. J.; Norman, E. B.; Chan, Y. D.; Lesko, K. T.; Hurley, D. L.
2015-03-24T23:59:59.000Z
The Low Background Facility (LBF) at Lawrence Berkeley National Laboratory in Berkeley, California provides low background gamma spectroscopy services to a wide array of experiments and projects. The analysis of samples takes place within two unique facilities; locally within a carefully-constructed, low background cave and remotely at an underground location that historically has operated underground in Oroville, CA, but has recently been relocated to the Sanford Underground Research Facility (SURF) in Lead, SD. These facilities provide a variety of gamma spectroscopy services to low background experiments primarily in the form of passive material screening for primordial radioisotopes (U, Th, K)more »or common cosmogenic/anthropogenic products, as well as active screening via Neutron Activation Analysis for specific applications. The LBF also provides hosting services for general R&D testing in low background environments on the surface or underground for background testing of detector systems or similar prototyping. A general overview of the facilities, services, and sensitivities is presented. Recent activities and upgrades will also be presented, such as the completion of a 3? anticoincidence shield at the surface station and environmental monitoring of Fukushima fallout. The LBF is open to any users for counting services or collaboration on a wide variety of experiments and projects.« less
A Count of Classical Field Theory Graphs
Gordon Chalmers
2005-07-28T23:59:59.000Z
A generating function is derived that counts the number of diagrams in an arbitrary scalar field theory. The number of graphs containing any number $n_j$ of $j$-point vertices is given. The count is also used to obtain the number of classical graphs in gauge theory and gravity.
People taking part in this CAR count are counting all the large terrestrial birds, such
de Villiers, Marienne
People taking part in this CAR count are counting all the large terrestrial birds, such as cranes species are monitored by CAR, of which 14 appear in the South African Red Data Book as Critically Endan gered, Vulnerable or NearThreatened. CAR counts began in 1993 and take place on the last Saturday
Grun, R. L. Jr.
This paper outlines how to determine what transformer losses cost and how to evaluate transformer bids to optimize the investment....
Grun, R. L. Jr.
1989-01-01T23:59:59.000Z
This paper outlines how to determine what transformer losses cost and how to evaluate transformer bids to optimize the investment....
Testability Transformation --Program Transformation to Improve Testability
Binkley, David W.
Testability Transformation -- Program Transformation to Improve Testability Mark Harman1 , Andr, 26 Richmond Street, Glasgow G1 1XH, UK. Corresponding Author. Abstract. Testability transformation. The goal is to improve the testing process by transforming a program to one that is more amenable
Testability Transformation: Program Transformation to Improve Testability
Singer, Jeremy
Testability Transformation: Program Transformation to Improve Testability An Overview of Recent Author. Abstract. Testability transformation is a new form of program transfor- mation in which the goal to some chosen test adequacy criterion. The goal is to improve the testing process by transforming
Low cost crowd counting using audio tones
Kannan, Pravein Govindan
With mobile devices becoming ubiquitous, collaborative applications have become increasingly pervasive. In these applications, there is a strong need to obtain a count of the number of mobile devices present in an area, ...
Calorie Counting Made Easy | GE Global Research
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
selling factor I would love to be a tester Gina 2014.07.30 My daughter has type 1 diabetes & I would love one that counted carbs. Helen k 2014.07.30 I would absolutely buy this...
Power Counting to Better Jet Observables
Andrew J. Larkoski; Ian Moult; Duff Neill
2014-09-22T23:59:59.000Z
Optimized jet substructure observables for identifying boosted topologies will play an essential role in maximizing the physics reach of the Large Hadron Collider. Ideally, the design of discriminating variables would be informed by analytic calculations in perturbative QCD. Unfortunately, explicit calculations are often not feasible due to the complexity of the observables used for discrimination, and so many validation studies rely heavily, and solely, on Monte Carlo. In this paper we show how methods based on the parametric power counting of the dynamics of QCD, familiar from effective theory analyses, can be used to design, understand, and make robust predictions for the behavior of jet substructure variables. As a concrete example, we apply power counting for discriminating boosted Z bosons from massive QCD jets using observables formed from the n-point energy correlation functions. We show that power counting alone gives a definite prediction for the observable that optimally separates the background-rich from the signal-rich regions of phase space. Power counting can also be used to understand effects of phase space cuts and the effect of contamination from pile-up, which we discuss. As these arguments rely only on the parametric scaling of QCD, the predictions from power counting must be reproduced by any Monte Carlo, which we verify using Pythia8 and Herwig++. We also use the example of quark versus gluon discrimination to demonstrate the limits of the power counting technique.
Analyzing Signals Fourier transform
Sweldens, Wim
Page 1 1 Analyzing Signals Fourier transform s frequency content s linear combination of sin frequency analysis s windowed Fourier transform 6 #12;Page 4 7 Gabor Transform function to analyze window Gabor Transform Spatial domain Gabor domain b #12;Page 5 9 Gabor Transform Problems s discrete version
Kuss, M.; Markel, T.; Kramer, W.
2011-01-01T23:59:59.000Z
Concentrated purchasing patterns of plug-in vehicles may result in localized distribution transformer overload scenarios. Prolonged periods of transformer overloading causes service life decrements, and in worst-case scenarios, results in tripped thermal relays and residential service outages. This analysis will review distribution transformer load models developed in the IEC 60076 standard, and apply the model to a neighborhood with plug-in hybrids. Residential distribution transformers are sized such that night-time cooling provides thermal recovery from heavy load conditions during the daytime utility peak. It is expected that PHEVs will primarily be charged at night in a residential setting. If not managed properly, some distribution transformers could become overloaded, leading to a reduction in transformer life expectancy, thus increasing costs to utilities and consumers. A Monte-Carlo scheme simulated each day of the year, evaluating 100 load scenarios as it swept through the following variables: number of vehicle per transformer, transformer size, and charging rate. A general method for determining expected transformer aging rate will be developed, based on the energy needs of plug-in vehicles loading a residential transformer.
GIS TRANSFORMATIONS Conference Presentation
Tobler, Waldo
GIS TRANSFORMATIONS Conference Presentation Waldo Tobler Geography Department University, line, area, or field phenomena, then the sixteen common classes of transformation are: point -> point (scalar, vector, tensor) data, to obtain eighty distinct possible classes of transformation. The common
Sandia Energy - Solar Market Transformation
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Solar Market Transformation Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Market Transformation Solar Market TransformationTara...
On Count/Mass Distinction in Slovene
Mitrovi?, Moreno
2011-01-01T23:59:59.000Z
there is rabbit in this stew ? there is rabbit meat in this stew #10 A (predominately) mass noun can be made count we store three bloods ? we store three blood types Section 3 overviews these properties with regards to their application to Slovene. We... we store three bloods ? we store three blood types I regard and convert Chiercia’s ten properties for count/mass distinction into tests: I apply test #1 in §3.2.1, test #2 in §3.2.2, tests #4-7 in §3.2.3, test #8 in §3.2.4, and tests #9 and #10...
Differential white cell count by centrifugal microfluidics.
Sommer, Gregory Jon; Tentori, Augusto M.; Schaff, Ulrich Y.
2010-07-01T23:59:59.000Z
We present a method for counting white blood cells that is uniquely compatible with centrifugation based microfluidics. Blood is deposited on top of one or more layers of density media within a microfluidic disk. Spinning the disk causes the cell populations within whole blood to settle through the media, reaching an equilibrium based on the density of each cell type. Separation and fluorescence measurement of cell types stained with a DNA dye is demonstrated using this technique. The integrated signal from bands of fluorescent microspheres is shown to be proportional to their initial concentration in suspension. Among the current generation of medical diagnostics are devices based on the principle of centrifuging a CD sized disk functionalized with microfluidics. These portable 'lab on a disk' devices are capable of conducting multiple assays directly from a blood sample, embodied by platforms developed by Gyros, Samsung, and Abaxis. [1,2] However, no centrifugal platform to date includes a differential white blood cell count, which is an important metric complimentary to diagnostic assays. Measuring the differential white blood cell count (the relative fraction of granulocytes, lymphocytes, and monocytes) is a standard medical diagnostic technique useful for identifying sepsis, leukemia, AIDS, radiation exposure, and a host of other conditions that affect the immune system. Several methods exist for measuring the relative white blood cell count including flow cytometry, electrical impedance, and visual identification from a stained drop of blood under a microscope. However, none of these methods is easily incorporated into a centrifugal microfluidic diagnostic platform.
Towards Robust Peer Counting Alberto Montresor
Montresor, Alberto
peer count in absence of churn. The protocol can handle extreme levels of churn, and automatically churn resilience [2]. Others let each node assume f(n) identities to balance load [3], [4. First, it is eventually accurate, i.e. the estimate converges to the number of nodes in absence of churn
Gas Filled Detectors counting & tracking of
Peletier, Reynier
Gas Filled Detectors counting & tracking of particles energy loss generation of electron-ion+ pairs #12;Gas Filled Detectors Primary and Total Ionization fast charged particles ionize the atoms of a gas fraction of resulting primary electrons have enough kinetic energy to ionize other atoms #12;Gas Filled
Fast Probabilistic Planning Through Weighted Model Counting
Domshlak, Carmel
Fast Probabilistic Planning Through Weighted Model Counting Carmel Domshlak J¨org Hoffmann Technion Fast Probabilistic Planning Through Weighted Model Countin #12;Talk Outline Probabilistic Planning Conclusion Carmel Domshlak, J¨org Hoffmann Fast Probabilistic Planning Through Weighted Model Countin #12
Particle contamination levels in oil-filled large power transformers
Oommen, T.V.; Petrie, E.M.
1983-05-01T23:59:59.000Z
A study of particle levels in transformer oil was conducted, covering about 200 samples taken from field and factory units. Factory samples were included to determine a relative base condition on which to compare field data. Particle distribution curves show size and count relationship in transformers. The particles were studied also by Atomic Absorption Spectroscopy to measure the content of iron, copper and other common metals expected. Particle analysis can supplement more standard laboratory techniques to judge the condition of oil in operating power transformers. The diagnostic value of such analysis, especially in determining pump performance problems, is illustrated with examples.
transformation languages Introduction
Nierstrasz, Oscar
transformation languages Introduction Transformation languages are widely used for to process can I change / transform the design of a certain task without changing it's logic The common/and hierarchical or/and abstract set of information. It can even be a stream of data. Â· The transformation engine
Glowing Bacteria: Transformation Efficiency
Rose, Michael R.
1 Glowing Bacteria: Transformation Efficiency Purpose: To determine how well your E. coli cells took up and expressed GFP after transformation. Background: Transformation efficiency is a quantitative)______ (Fraction of DNA spread on plate) = ______ µg plasmid DNA spread on plate #12;2 5. Transformation efficiency
Perfect NOT transformation and conjugate transformation
Fengli Yan; Ting Gao; Zhichao Yan
2012-03-15T23:59:59.000Z
The perfect NOT transformation, probabilistic perfect NOT transformation and conjugate transformation are studied. Perfect NOT transformation criteria on a quantum state set $S$ of a qubit are obtained. Two necessary and sufficient conditions for realizing a perfect NOT transformation on $S$ are derived. When these conditions are not satisfied we discuss a probabilistic perfect NOT transformation (gate). We construct a probabilistic perfect NOT machine (gate) by a general unitary-reduction operation. With a postselection of the measurement outcomes, the probabilistic NOT gate yields perfectly complements of the input states. We prove that one can realize probabilistically the NOT gate of the input states secretly chosen from a certain set $S=\\{|\\Psi_1>, |\\Psi_2>,..., |\\Psi_n>\\}$ if and only if $|\\Psi_1>, |\\Psi_2>,...,$ and $|\\Psi_n>$ are linearly independent. We also generalize the probabilistic NOT transformation to the conjugate transformation in the multi-level quantum system. The lower bound of the best possible efficiencies attained by a probabilistic perfect conjugate transformation are obtained.
Particle Energy Spectrum, Revisited from a Counting Statistics Perspective
None
2012-07-28T23:59:59.000Z
In nuclear science, gamma and neutron spectra are counted energy by energy, and then particle by particle. Until recently, few studies have been performed on how exactly those energy spectra are counted, or how those counts are correlated. Because of lack of investigation, cross section covariance and correlation matrices are usually estimated using perturbation method. We will discuss a statistical counting scheme that shall mimic the gamma and neutron counting process used in nuclear science. From this counting scheme, the cross section covariance and correlation can be statistically derived.
When DNA Needs to Stand Up and Be Counted
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
When DNA Needs to Stand Up and Be Counted When DNA Needs to Stand Up and Be Counted Print Wednesday, 31 May 2006 00:00 DNA microarrays are small metal, glass, or silicon chips...
Metrics for enterprise transformation
Blackburn, Craig D. (Craig David), S. M. Massachusetts Institute of Technology
2009-01-01T23:59:59.000Z
The objective of this thesis is to depict the role of metrics in the evolving journey of enterprise transformation. To this end, three propositions are explored: (i) metrics and measurement systems drive transformation, ...
de Queiroz, Ricardo L.
Chapter 6 LAPPED TRANSFORMS FOR IMAGE COMPRESSION Ricardo L. de Queiroz Digital Imaging Technology aspects of lapped transforms and their applications to image compression. It is a subject that has been extensively studied mainly because lapped transforms are closely related to filter banks, wavelets, and time
Spacetime transformation acoustics
C. García-Meca; S. Carloni; C. Barceló; G. Jannes; J. Sánchez-Dehesa; A. Martínez
2014-07-08T23:59:59.000Z
A recently proposed analogue transformation method has allowed the extension of transformation acoustics to general spacetime transformations. We analyze here in detail the differences between this new analogue transformation acoustics (ATA) method and the standard one (STA). We show explicitly that STA is not suitable for transformations that mix space and time. ATA takes as starting point the acoustic equation for the velocity potential, instead of that for the pressure as in STA. This velocity-potential equation by itself already allows for some transformations mixing space and time, but not all of them. We explicitly obtain the entire set of transformations that do not leave its form invariant. It is in these cases that ATA shows its true potential, allowing for building a transformation acoustics method that enables the full range of spacetime transformations. We provide an example of an important transformation which cannot be achieved with STA. Using this transformation, we design and simulate an acoustic frequency converter via the ATA approach. Furthermore, in those cases in which one can apply both the STA and ATA approaches, we study the different transformational properties of the corresponding physical quantities.
Counting systems and the First Hilbert problem
Yaroslav D. Sergeyev
2012-03-14T23:59:59.000Z
The First Hilbert problem is studied in this paper by applying two instruments: a new methodology distinguishing between mathematical objects and mathematical languages used to describe these objects; and a new numeral system allowing one to express different infinite numbers and to use these numbers for measuring infinite sets. Several counting systems are taken into consideration. It is emphasized in the paper that different mathematical languages can describe mathematical objects (in particular, sets and the number of their elements) with different accuracies. The traditional and the new approaches are compared and discussed.
Karsai, K.; Kerenyi, D.; Kiss, L.
1987-01-01T23:59:59.000Z
The book deals with the following aspects of transformer engineering: general principles governing the function of transformers, iron cores, windings, stray losses caused by stray flux, the insulation of transformers, and the structural parts and accessories. This edition includes the developments in theory and practice on the basis of the authors' experience in design, manufacturing and testing of large transformers. New developments have been particularly extensive in the fields of new magnetic materials, cooling methods, dielectric strength for overvoltages of different types, and stray-load loss problems, which are presented in the book in detail. The many diagrams in the book can be used directly in the design, manufacture and testing of large transformers. In preparing their text, the authors have aimed to satisfy the demand for a work that summarizes the latest experience in development and design of large power transformers.
Low background counting techniques at SNOLAB
Lawson, Ian; Cleveland, Bruce [SNOLAB, 1039 Regional Rd 24, Lively, ON P3Y 1N2 (Canada)] [SNOLAB, 1039 Regional Rd 24, Lively, ON P3Y 1N2 (Canada)
2013-08-08T23:59:59.000Z
Many of the experiments currently searching for dark matter, studying properties of neutrinos or searching for neutrinoless double beta decay require very low levels of radioactive backgrounds both in their own construction materials and in the surrounding environment. These low background levels are required so that the experiments can achieve the required sensitivities for their searches. SNOLAB has several facilities which are used to directly measure these radioactive backgrounds. This proceedings will describe SNOLAB's High Purity Germanium Detectors, one of which has been in continuous use for the past seven years measuring materials for many experiments in operation or under construction at SNOLAB. A description of the characterisation of SNOLAB's new germanium well detector will be presented. In addition, brief descriptions of SNOLAB's alpha-beta and electrostatic counters will be presented and a description of SNOLAB's future low background counting laboratory will be given.
Pandharipande, R
2011-01-01T23:59:59.000Z
In the past 20 years, compactifications of the families of curves in algebraic varieties X have been studied via stable maps, Hilbert schemes, stable pairs, unramified maps, and stable quotients. Each path leads to a different enumeration of curves. A common thread is the use of a 2-term deformation/obstruction theory to define a virtual fundamental class. The richest geometry occurs when X is a nonsingular projective variety of dimension 3. We survey here the 13/2 principal ways to count curves with special attention to the 3-fold case. The different theories are linked by a web of conjectural relationships which we highlight. Our goal is to provide a guide for graduate students looking for an elementary route into the subject.
ACCOUNTING ROADMAP TRANSFORMING LIVES
ACCOUNTING ROADMAP TO SUCCESS THE TRANSFORMING LIVES COLLEGE OF BUSINESS Department of Accounting #12;TABLEOFCONTENTS Greetings from Accounting Department Chair ..............................2 What is Accounting? .......................................................................4 Successful Study
U.S. Energy Information Administration (EIA) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home PageSummary" ,"Click worksheet,167,371 6,826,192InputPrice (Percent) YearThousand2009CORPORATION /Fall 2014
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) | SciTech Connect Journal Article: X-rayContractforCenters Technology DeploymentSmallEnergySchedule
Absolute nuclear material assay using count distribution (LAMBDA) space
Prasad, Manoj K. (Pleasanton, CA); Snyderman, Neal J. (Berkeley, CA); Rowland, Mark S. (Alamo, CA)
2012-06-05T23:59:59.000Z
A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
Exploring Functional Mellin Transforms
J. LaChapelle
2015-01-08T23:59:59.000Z
We define functional Mellin transforms within a scheme for functional integration proposed in [1]. Functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.
Deployment & Market Transformation (Brochure)
Not Available
2012-04-01T23:59:59.000Z
NREL's deployment and market transformation (D and MT) activities encompass the laboratory's full range of technologies, which span the energy efficiency and renewable energy spectrum. NREL staff educates partners on how they can advance sustainable energy applications and also provides clients with best practices for reducing barriers to innovation and market transformation.
Biochemical transformation of coals
Lin, Mow S. (Rocky Point, NY); Premuzic, Eugene T. (East Moriches, NY)
1999-03-23T23:59:59.000Z
A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed.
Biochemical transformation of coals
Lin, M.S.; Premuzic, E.T.
1999-03-23T23:59:59.000Z
A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed. 7 figs.
Logarithmic transformation of response Logarithmic transformation of response
Komarek, Arnost
Logarithmic transformation of response Logarithmic transformation of response Often, support S of Y is S = (0, ). Logarithm is then one of transformations to consider when trying to obtain a correct (wrong. Model Building 1. Transformation of response #12;Logarithmic transformation of response When does
Program Transformation Mechanics A Classification of Mechanisms for Program Transformation
Utrecht, Universiteit
Program Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing Transformation Systems Jonne van Wijngaarden Eelco Visser UU-CS-2003-048 Institute Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing
IMAGINED TRANSFORMATIONS 1 Running head: IMAGINED TRANSFORMATION OF BODIES
Zacks, Jeffrey M.
IMAGINED TRANSFORMATIONS 1 Running head: IMAGINED TRANSFORMATION OF BODIES Imagined Transformations TRANSFORMATIONS 2 Abstract A number of spatial reasoning problems can be solved by performing an imagined transformation of one's egocentric perspective. A series of experiments were carried out to characterize
A discrete fractional random transform
Zhengjun Liu; Haifa Zhao; Shutian Liu
2006-05-20T23:59:59.000Z
We propose a discrete fractional random transform based on a generalization of the discrete fractional Fourier transform with an intrinsic randomness. Such discrete fractional random transform inheres excellent mathematical properties of the fractional Fourier transform along with some fantastic features of its own. As a primary application, the discrete fractional random transform has been used for image encryption and decryption.
Transformer Abdullah Al-Otaibi
Masoudi, Husain M.
Transformer Abdullah Al-Otaibi ID#242374 Section#2 Abstract- this is a brief description for transformer and how it works. I. DEFINITION A transformer is a device that transfers electrical energy from of the transformer in 1831. The transformer is used by Faraday only to demonstrate the principle of electromagnetic
Transformation Algebra R. J. Renka
Renka, Robert
Transformation Algebra R. J. Renka Department of Computer Science & Engineering University of North Texas 03/21/2011 R. J. Renka Transformation Algebra #12;Linear Transformations A point with Cartesian transformations. A linear transformation L on R3 is represented by a 3 by 3 matrix A. In fact, there is a 1
First AID (Atom counting for Isotopic Determination).
Roach, J. L. (Jeffrey L.); Israel, K. M. (Kimberly M.); Steiner, R. E. (Robert E.); Duffy, C. J. (Clarence J.); Roench, F. R. (Fred R.)
2002-01-01T23:59:59.000Z
Los Alamos National Laboratory (LANL) has established an in vitro bioassay monitoring program in compliance with the requirements in the Code of Federal Regulations, 10 CFR 835, Occupational Radiation Protection. One aspect of this program involves monitoring plutonium levels in at-risk workers. High-risk workers are monitored using the ultra-sensitive Therrnal Ionization Mass Spectrometry (TIMS) technique to ensure compliance with DOE standards. TIMS is used to measure atom ratios of 239Pua nd 240Puw ith respect to a tracer isotope ('Pu). These ratios are then used to calculate the amount of 239Pu and 240Pup resent. This low-level atom counting technique allows the calculation of the concentration levels of 239Pu and 240Pu in urine for at risk workers. From these concentration levels, dose assessments can be made and worker exposure levels can be monitored. Detection limits for TIMS analysis are on the order of millions of atoms, which translates to activity levels of 150 aCi 239Pua nd 500 aCi for 240Pu. pCi for Our poster presentation will discuss the ultra-sensitive, low-level analytical technique used to measure plutonium isotopes and the data verification methods used for validating isotopic measurements.
Weighted power counting and chiral dimensional regularization
Damiano Anselmi
2014-06-27T23:59:59.000Z
We define a modified dimensional-regularization technique that overcomes several difficulties of the ordinary technique, and is specially designed to work efficiently in chiral and parity violating quantum field theories, in arbitrary dimensions greater than 2. When the dimension of spacetime is continued to complex values, spinors, vectors and tensors keep the components they have in the physical dimension, therefore the $\\gamma $ matrices are the standard ones. Propagators are regularized with the help of evanescent higher-derivative kinetic terms, which are of the Majorana type in the case of chiral fermions. If the new terms are organized in a clever way, weighted power counting provides an efficient control on the renormalization of the theory, and allows us to show that the resulting chiral dimensional regularization is consistent to all orders. The new technique considerably simplifies the proofs of properties that hold to all orders, and makes them suitable to be generalized to wider classes of models. Typical examples are the renormalizability of chiral gauge theories and the Adler-Bardeen theorem. The difficulty of explicit computations, on the other hand, may increase.
MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL
Ihler, Alexander
MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL Jon Hutchins, Alexander Ihler using real data from a network of optical counting sensors in a campus building. Index Terms--- sensor Knowledge of the number of people in a building at a given time is crucial for applications
MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL
Ihler, Alexander
MODELING COUNT DATA FROM MULTIPLE SENSORS: A BUILDING OCCUPANCY MODEL Jon Hutchins, Alexander Ihler using real data from a network of optical counting sensors in a campus building. Index Terms-- sensor Knowledge of the number of people in a building at a given time is crucial for applications
Energy conservation, counting statistics, and return to equilibrium
Jaksic, Vojkan
Energy conservation, counting statistics, and return to equilibrium V. JaksiÂ´c1 , J. Panangaden1 to the joint thermal equilibrium state, we study the Full Counting Statistics (FCS) of the energy transfers , A. Panati1,2 , C-A. Pillet2 1 Department of Mathematics and Statistics, McGill University, 805
Lorentz transformation by mimicking the Lorentz transformation
Bernhard Rothenstein; Stefan Popescu
2007-09-24T23:59:59.000Z
We show that starting with the fact that special relativity theory is concerned with a distortion of the observed length of a moving rod, without mentioning if it is a "contraction" or "dilation", we can derive the Lorentz transformations for the spacetime coordinates of the same event. This derivation is based on expressing the length of the moving rod as a sum of components with all the lengths involved in this summation being measured by the observers of the same inertial reference frame.
Mundy, S.
2002-07-31T23:59:59.000Z
The purpose of this proposed plan is to describe the preferred remedial alternative for the R-Area Bingham Pump Outage Pits (R BPOPs) and the R-Area Unknowns (RUNKs) operable unit (OU) and to provide for public involvement in the decision-making process.
J. Twamley; G. J. Milburn
2007-02-12T23:59:59.000Z
We uncover a new type of unitary operation for quantum mechanics on the half-line which yields a transformation to ``Hyperbolic phase space''. We show that this new unitary change of basis from the position x on the half line to the Hyperbolic momentum $p_\\eta$, transforms the wavefunction via a Mellin transform on to the critial line $s=1/2-ip_\\eta$. We utilise this new transform to find quantum wavefunctions whose Hyperbolic momentum representation approximate a class of higher transcendental functions, and in particular, approximate the Riemann Zeta function. We finally give possible physical realisations to perform an indirect measurement of the Hyperbolic momentum of a quantum system on the half-line.
Liu, David
We present a new technique for the design of transformation-optics devices based on large-scale optimization to achieve the optimal effective isotropic dielectric materials within prescribed index bounds, which is ...
Applying Improved Efficiency Transformers
Haggerty, N. K.; Malone, T. P.
1998-01-01T23:59:59.000Z
Today's business and energy conscious environment affords both producers and consumers of electric energy an opportunity to reduce costs and conserve energy through the use of improved efficiency transformers. Various design techniques...
Series Transmission Line Transformer
Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)
2004-06-29T23:59:59.000Z
A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.
J. LaChapelle
2015-01-07T23:59:59.000Z
Functional integrals are defined in terms of locally compact topological groups and their associated Banach-valued Haar integrals. This approach generalizes the functional integral scheme of Cartier and DeWitt-Morette. The definition allows a construction of functional Mellin transforms. In turn, the functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.
Optical transformation from chirplet to fractional Fourier transformation kernel
Hong-yi Fan; Li-yun Hu
2009-02-11T23:59:59.000Z
We find a new integration transformation which can convert a chirplet function to fractional Fourier transformation kernel, this new transformation is invertible and obeys Parseval theorem. Under this transformation a new relationship between a phase space function and its Weyl-Wigner quantum correspondence operator is revealed.
From transformation traces to transformation rules: Assisting Model Driven Engineering
Paris-Sud XI, Université de
From transformation traces to transformation rules: Assisting Model Driven Engineering approach. In this paper we are interested in semi-automatically gen- erating labelled graph (model) transformations conform to a particu- lar syntax (meta-model). Those transformations are basic operations in model driven
Laplace Transforms An integral transform is an operator
Ikenaga, Bruce
9281998 Laplace Transforms An integral transform is an operator F (s) = Z b a K(s; t)f(t) dt: The input to the transform is the function f(t); the output is the function F (s). (By convention, small letters denote the inputs to a transform, and the corresponding capital letters denote the corresponding
APPENDIX F. TRANSFORMS, COMPLEX ANALYSIS 1 Transforms, Complex
Callen, James D.
APPENDIX F. TRANSFORMS, COMPLEX ANALYSIS 1 Appendix F Transforms, Complex Analysis This appendix discusses Fourier and Laplace transforms as they are used in plasma physics and this book. Also, key properties of complex variable theory that are needed for understanding and inverting these transforms
DOE Zero Energy Ready Home Case Study 2013: Transformation, Inc...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
replaces house wrap as the home's weather-resistive barrier. As Scott explains, this wall is so effective that when a December ice storm caused a power outage, while...
Non-Gaussian extrema counts for CMB maps
Pogosyan, Dmitri [Department of Physics, University of Alberta, 11322-89 Avenue, Edmonton, Alberta, T6G 2G7 (Canada); Pichon, Christophe; Gay, Christophe [Institut d'astrophysique de Paris, 98, bis Boulevard Arago, 75 014, Paris (France)
2011-10-15T23:59:59.000Z
In the context of the geometrical analysis of weakly non-Gaussian cosmic microwave background maps, the 2D differential extrema counts as functions of the excursion set threshold is derived from the full moments expansion of the joint probability distribution of an isotropic random field, its gradient, and invariants of the Hessian. Analytic expressions for these counts are given to second order in the non-Gaussian correction, while a Monte Carlo method to compute them to arbitrary order is presented. Matching count statistics to these estimators is illustrated on fiducial non-Gaussian Planck data.
Mead, Jodi L.
MATH 333 Laplace Transform Lab 9 May 7, 2008 In this lab we will compute the Laplace transform symbolically and the inverse Laplace transform both symbolically and numerically. Symbolic representation The command syms assigns a variable to be symbolic, laplace(f) finds the Laplace transform of a function f
Discrete Fourier Transform Javier Montoya
Giger, Christine
Discrete Fourier Transform Javier Montoya Photogrammetry and Remote Sensing ETH Zurich March 16, 2012 1 Introduction The Discrete form of the Fourier transform is known as Discrete Fourier Transform domain using the Inverse Discrete Fourier Transform (IDFT): f(x) = 1 N N-1 x=0 F(u)ej 2 N ux for u = 0, 1
Multianode cylindrical proportional counter for high count rates
Hanson, J.A.; Kopp, M.K.
1980-05-23T23:59:59.000Z
A cylindrical, multiple-anode proportional counter is provided for counting of low-energy photons (< 60 keV) at count rates of greater than 10/sup 5/ counts/sec. A gas-filled proportional counter cylinder forming an outer cathode is provided with a central coaxially disposed inner cathode and a plurality of anode wires disposed in a cylindrical array in coaxial alignment with and between the inner and outer cathodes to form a virtual cylindrical anode coaxial with the inner and outer cathodes. The virtual cylindrical anode configuration improves the electron drift velocity by providing a more uniform field strength throughout the counter gas volume, thus decreasing the electron collection time following the detection of an ionizing event. This avoids pulse pile-up and coincidence losses at these high count rates. Conventional RC position encoding detection circuitry may be employed to extract the spatial information from the counter anodes.
Multianode cylindrical proportional counter for high count rates
Hanson, James A. (Madison, WI); Kopp, Manfred K. (Oak Ridge, TN)
1981-01-01T23:59:59.000Z
A cylindrical, multiple-anode proportional counter is provided for counting of low-energy photons (<60 keV) at count rates of greater than 10.sup.5 counts/sec. A gas-filled proportional counter cylinder forming an outer cathode is provided with a central coaxially disposed inner cathode and a plurality of anode wires disposed in a cylindrical array in coaxial alignment with and between the inner and outer cathodes to form a virtual cylindrical anode coaxial with the inner and outer cathodes. The virtual cylindrical anode configuration improves the electron drift velocity by providing a more uniform field strength throughout the counter gas volume, thus decreasing the electron collection time following the detection of an ionizing event. This avoids pulse pile-up and coincidence losses at these high count rates. Conventional RC position encoding detection circuitry may be employed to extract the spatial information from the counter anodes.
When DNA Needs to Stand Up and Be Counted
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
When DNA Needs to Stand Up and Be Counted Print DNA microarrays are small metal, glass, or silicon chips covered with patterns of short single-stranded DNA (ssDNA). These "DNA...
Tracking system for photon-counting laser radar
Chang, Joshua TsuKang
2007-01-01T23:59:59.000Z
The purpose of this thesis is to build the tracking system for a photon-counting laser radar specifically a laser radar that has the ability to perform direct and coherent detection measurement at low signal levels with ...
Algorithmic issues in queueing systems and combinatorial counting problems
Katz-Rogozhnikov, Dmitriy A
2008-01-01T23:59:59.000Z
(cont.) However, these randomized algorithms can never provide proven upper or lower bounds on the number of objects they are counting, but can only give probabilistic estimates. We propose a set of deterministic algorithms ...
Estimation and specification tests of count data recreation demand functions
Gomez, Irma Adriana
1991-01-01T23:59:59.000Z
ESTIMATION AND SPECIFICATION TESTS OF COUNT DATA RECREATION DEMAND FUNCTIONS A Thesis IRMA ADRIANA GOMEZ Submitted to the Office of Graduate Studies of Texas A8cM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1991 Major Subject: Agricultural Economics ESTIMATION AND SPECIFICATION TESTS OF COUNT DATA RECREATION DEMAND FUNCTIONS A Thesis by IRMA ADRIANA GOMEZ Approved as to style and content by: T o a, Jr. (C a' of Committee) Lonnie...
Coordinate transformations in quaternion spaces
Zihua Weng
2009-05-15T23:59:59.000Z
The quaternion spaces can be used to describe the property of electromagnetic field and gravitational field. In the quaternion space, some coordinate transformations can be deduced from the feature of quaternions, including Lorentz transformation and Galilean transformation etc., when the coordinate system is transformed into others. And some coordinate transformations with variable speed of light can be obtained in the electromagnetic field and gravitational field.
A High Count Rate Beam Monitor for Thermal Neutrons
Barnett, Amanda [University of Tennessee, Knoxville (UTK); Crow, Lowell [ORNL; Diawara, Yacouba [ORNL; Funk, Loren L [ORNL; Hayward, J P [University of Tennessee, Knoxville (UTK); Menhard, Kocsis [European Synchrotron Radiation Facility (ESRF); Sedov, Vladislav N [ORNL
2012-01-01T23:59:59.000Z
Beam monitors are an important diagnostic tool in neutron science facilities. Present beam monitors use either ionization chambers in integration mode, which are slow and have no timing information, or pulse counters which can easily be saturated by high beam intensities. Neutron beam monitors indicate the number of neutrons incident on a scattering sample and allow neutron experimental data to be analyzed even when the source strength varies with time. At high flux neutron scattering facilities, neutron beam monitors with very low efficiency (10-5) are presently selected to keep the counting rate within a feasible range, even when a higher efficiency would improve the counting statistics and yield a better measurement of the incident beam. In this work, we report on a high count rate neutron beam monitor which also offers position sensitivity to provide a beam profile. This beam monitor offers good timing (less than 1 s) in addition to position resolution and will therefore improve the counting statistics at neutron energies up to 10 eV and allow moderator studies. The detector s main characteristics will be presented including its background rate, its count rate capability which is an order of magnitude higher than present counting monitors, and its efficiency for thermal neutrons.
Probabilistically Accurate Program Transformations
Rinard, Martin
of loop perforation (which transforms loops to execute fewer iterations) to a set of computational the probabilistic guarantees for those bounds. 1.1 Loop Perforation In this paper, we focus on loop perforation demonstrate the util- ity and effectiveness of loop perforation in reducing the amount of time (and/or other
Fourier Transform Infrared Spectroscopy
Nizkorodov, Sergey
found to contaminate ground water supplies by release from leaking gasoline storage tanks. MTBE has beenFTIR - 1 Fourier Transform Infrared Spectroscopy FTIR DETERMINATION OF MTBE IN GASOLINE AND ETHANOL FTIR DETERMINATION OF MTBE IN GASOLINE AND ETHANOL IN VODKA AND MOUTHWASH INTRODUCTION As a part
Transforming Education at Einstein
Yates, Andrew
Transforming Education at Einstein EinstEin Winter/spring 2012 The Magazine for Alumni and Friends of Albert Einstein College of Medicine of Yeshiva University #12;2 EinstEin : WintEr/spring 2012 Meet Our interactive Companion Magazine Give Einstein's "virtual" version a try! this interactive version
ACCOUNTING ROADMAP TRANSFORMING LIVES
Collett Jr., Jeffrey L.
ACCOUNTING ROADMAP TO SUCCESS THE TRANSFORMING LIVES COLLEGE OF BUSINESS Department of Accounting #12;TABLEOFCONTENTS Greetings from Accounting Department Chair 2 What is Accounting? 4 Successful Accounting Career Paths 8 Careers in Managerial Accounting 9 Careers in Government/Not-for-Profit (GNP
TO TRANSFORM BIOMEDICAL ENGINEERING
Bermúdez, José Luis
IT'S TIME TO TRANSFORM BIOMEDICAL ENGINEERING EDUCATION #12;Charles H. & Bettye Barclay Professor Head, Department of Biomedical Engineering Texas A&M University We're dedicated to solving the world in biomedical engineering research and education and we're well on our way. Our faculty continues to engineer
Research Councils UK Transforming
Berzins, M.
Research Councils UK Transforming our energy future #12;Research funded by the Research Councils in 2002 to create a viable renewable energy research community to foster industrial engagement of research, expertise and the business capability to develop and exploit them commercially. Energy and its
Algorithms for transform selection in multiple-transform video compression
Cai, Xun, S.M. Massachusetts Institute of Technology
2012-01-01T23:59:59.000Z
Selecting proper transforms for video compression has been based on the rate-distortion criterion. Transforms that appear reasonable are incorporated into a video coding system and their performance is evaluated. This ...
Modelling the Deep Counts: Luminosity Evolution, Dust and Faint Galaxies
Ana Campos; Tom Shanks
1995-11-23T23:59:59.000Z
In this paper we analyse the deep number counts problem, taking account of new observational and theoretical developments. First we show that the new Bruzual and Charlot (1993) models allow a new class of spiral dominated luminosity evolution (LE) model where significant amounts of the luminosity evolution needed to fit faint count data are due to spiral rather than early-type galaxies. Second we show that the inclusion of dust may be a vital ingredient for obtaining fits with any LE model. Third we compare the quality of fit of both the spiral and early-type LE models, including dust, for a wide variety of observational data. We find that parameters can be found for both LE models which allow a good fit to all data with the exception of the faintest B>25 counts in the case of q0=0.5 cosmologies, where some luminosity dependent evolution may be needed (see also Metcalfe et al 1995). Otherwise both these classes of LE model, with the inclusion of dust, provide an excellent foundation for understanding the B<25 galaxy counts and galaxy counts and redshift distributions in a variety of other wavebands.
Upper Limits from Counting Experiments with Multiple Pipelines
Patrick J. Sutton
2010-04-07T23:59:59.000Z
In counting experiments, one can set an upper limit on the rate of a Poisson process based on a count of the number of events observed due to the process. In some experiments, one makes several counts of the number of events, using different instruments, different event detection algorithms, or observations over multiple time intervals. We demonstrate how to generalize the classical frequentist upper limit calculation to the case where multiple counts of events are made over one or more time intervals using several (not necessarily independent) procedures. We show how different choices of the rank ordering of possible outcomes in the space of counts correspond to applying different levels of significance to the various measurements. We propose an ordering that is matched to the sensitivity of the different measurement procedures and show that in typical cases it gives stronger upper limits than other choices. As an example, we show how this method can be applied to searches for gravitational-wave bursts, where multiple burst-detection algorithms analyse the same data set, and demonstrate how a single combined upper limit can be set on the gravitational-wave burst rate.
Sheng, Lei; Liu, Jing
2014-01-01T23:59:59.000Z
The room temperature liquid metal is quickly emerging as an important functional material in a variety of areas like chip cooling, 3D printing or printed electronics etc. With diverse capabilities in electrical, thermal and flowing behaviors, such fluid owns many intriguing properties that had never been anticipated before. Here, we show a group of unconventional phenomena occurring on the liquid metal objects. Through applying electrical field on the liquid metals immersed in water, a series of complex transformation behaviors such as self-assembling of a sheet of liquid metal film into a single sphere, quick mergences of separate metal droplets, controlled self-rotation and planar locomotion of liquid metal objects can be realized. Meanwhile, it was also found that two accompanying water vortexes were induced and reliably swirled near the rotating liquid metal sphere. Further, effects of the shape, size, voltage, orientation and geometries of the electrodes to control the liquid metal transformers were clar...
Market Transformation Fact Sheet
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Department ofFormerCommittee: Notice ofJoshuaviiof|March 2015Higgins About Transformation Market
Transformative Wave Technologies Kent, Washington
California at Davis, University of
Transformative Wave Technologies Kent, Washington www.transformativewave.com #12;#12;North America are shifted to off peak times #12;#12;Transformative Wave Technologies www.transformativewave.com #12
FOURIER TRANSFORM MULTIPLE QUANTUM NMR
Drobny, G.
2011-01-01T23:59:59.000Z
of transition observed in Fourier transform multiple quantumDecember 18-19, 1979 FOURIER TRANSFORM MULTIPLE QUANTUM NMRof London, December 1978. FOURIER TRANSFO~~ MULTIPLE QUANTUM
Large deviations of ergodic counting processes: a statistical mechanics approach
Budini, Adrian A
2011-01-01T23:59:59.000Z
The large-deviation method allows to characterize an ergodic counting process in terms of a thermodynamic frame where a free energy function determines the asymptotic non-stationary statistical properties of its fluctuations. Here, we study this formalism through a statistical mechanics approach, i.e., with an auxiliary counting process that maximizes an entropy function associated to the thermodynamic potential. We show that the realizations of this auxiliary process can be obtained after applying a conditional measurement scheme to the original ones, providing is this way an alternative measurement interpretation of the thermodynamic approach. General results are obtained for renewal counting processes, i.e., those where the time intervals between consecutive events are independent and defined by a unique waiting time distribution. The underlying statistical mechanics is controlled by the same waiting time distribution, rescaled by an exponential decay measured by the free energy function. A scale invarianc...
New multi-sample nonparametric tests for panel count data
Balakrishnan, N; 10.1214/08-AOS599
2009-01-01T23:59:59.000Z
This paper considers the problem of multi-sample nonparametric comparison of counting processes with panel count data, which arise naturally when recurrent events are considered. Such data frequently occur in medical follow-up studies and reliability experiments, for example. For the problem considered, we construct two new classes of nonparametric test statistics based on the accumulated weighted differences between the rates of increase of the estimated mean functions of the counting processes over observation times, wherein the nonparametric maximum likelihood approach is used to estimate the mean function instead of the nonparametric maximum pseudo-likelihood. The asymptotic distributions of the proposed statistics are derived and their finite-sample properties are examined through Monte Carlo simulations. The simulation results show that the proposed methods work quite well and are more powerful than the existing test procedures. Two real data sets are analyzed and presented as illustrative examples.
Generalized Transforms and Special Functions
G. Dattoli; E. Sabia
2010-10-08T23:59:59.000Z
We study the properties of different type of transforms by means of operational methods and discuss the relevant interplay with many families of special functions. We consider in particular the binomial transform and its generalizations. A general method, based on the use of the Fourier transform technique, is proposed for the study of the properties of functions of operators.
LORENTZ TRANSFORMATIONS AND STATISTICAL MECHANICS
of Lorentz transformations corresponding to radiation made its ap pearance. We have yet to see a description of these ``radiation'' transformations in the Physics literature. The complexification of the Lorentz Transformations Mathematics Subject Classification. 57R45, 17B90, 15A63. Key words and phrases. exponential map, singularity
LORENTZ TRANSFORMATIONS AND STATISTICAL MECHANICS
transformations corresponding to radiation made its ap- pearance. We have yet to see a description of these "radiation" transformations in the Physics literature. The complexification of the Lorentz Transformations Mathematics Subject Classification. 57R45, 17B90, 15A63. Key words and phrases. exponential map, singularity
Computation That Counts c 2004 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 615
Lyuu, Yuh-Dauh
Computation That Counts c 2004 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 615 Counting-Dauh Lyuu, National Taiwan University Page 616 Decision and Counting Problems · FP is the set of polynomial-Dauh Lyuu, National Taiwan University Page 617 A Counting Problem Harder than Its Decision Version · Some
Power-counting renormalizability of generalized Horava gravity
Visser, Matt
2009-01-01T23:59:59.000Z
In an earlier article [arXiv:0902.0590 [hep-th], Phys. Rev D80 (2009) 025011], I discussed the potential benefits of allowing Lorentz symmetry breaking in quantum field theories. In particular I discussed the perturbative power-counting finiteness of the normal-ordered :P(phi)^{z>=d}_{d+1}: scalar quantum field theories, and sketched the implications for Horava's model of quantum gravity. In the current rather brief addendum, I will tidy up some dangling issues and fill out some of the technical details of the argument indicating the power-counting renormalizability of a z>=d variant of Horava gravity in (d+1) dimensions.
Power-counting renormalizability of generalized Horava gravity
Matt Visser
2009-12-24T23:59:59.000Z
In an earlier article [arXiv:0902.0590 [hep-th], Phys. Rev D80 (2009) 025011], I discussed the potential benefits of allowing Lorentz symmetry breaking in quantum field theories. In particular I discussed the perturbative power-counting finiteness of the normal-ordered :P(phi)^{z>=d}_{d+1}: scalar quantum field theories, and sketched the implications for Horava's model of quantum gravity. In the current rather brief addendum, I will tidy up some dangling issues and fill out some of the technical details of the argument indicating the power-counting renormalizability of a z>=d variant of Horava gravity in (d+1) dimensions.
Counting elements and geodesics in Thompson's group F
Rechnitzer, Andrew
Counting elements and geodesics in Thompson's group F Murray Elder School of Mathematics of Thompson's group F with standard generating set. The first of these requires exponential time . Key words: Group growth function, growth series, geodesic growth series, Thompson's group F 2008 MSC
Counting Mountain-Valley Assignments for Flat Folds
Hull, Thomas C.
Counting Mountain-Valley Assignments for Flat Folds Thomas Hull Department of Mathematics Merrimack), a mountain-valley (MV) assignment is a function f : E {M,V} which indicates which crease lines are con- vex can be thought of as a structural blueprint of the fold.) Creases come in two types: mountain creases
Note on refined topological vertex, Jack polynomials and instanton counting
Jianfeng Wu
2010-12-10T23:59:59.000Z
In this article, we calculated the refined topological vertex for the one parameter case using the Jack symmetric functions. Also, we obtain the partition function for elliptic N=2 models, the results coincide with those of Nekrasov instanton counting partition functions for the $N=2^{\\ast}$ theories.
The Relationship between Inner Product and Counting Cycles Xiaoming Sun
Tang, Pingzhong
The Relationship between Inner Product and Counting Cycles Xiaoming Sun ITCS, IIIS, Tsinghua xiaomings@tsinghua.edu.cn Chengu Wang ITCS, IIIS, Tsinghua wangchengu@gmail.com Wei Yu ITCS, IIIS, Tsinghua and Bob each holds a permutation of size n with the promise that there will be either a cycles or b cycles
Counting Packets Sent Between Arbitrary Internet Hosts Jeffrey Knockel
Crandall, Jedidiah R.
Counting Packets Sent Between Arbitrary Internet Hosts Jeffrey Knockel Dept. of Computer Science University of New Mexico jeffk@cs.unm.edu Jedidiah R. Crandall Dept. of Computer Science University of New Mexico crandall@cs.unm.edu Abstract In this paper we demonstrate a side-channel technique to infer
Coordinated avifaunal roadCounts (Car) Animal Demography Unit
de Villiers, Marienne
Coordinated avifaunal roadCounts (Car) Animal Demography Unit Department of Zoology University collected on that route. It is also a useful aid to anyone doing a route for the first time. CAR would like 14: wheat fields". Use CAR habitat and crop categories and mention which types of livestock
A people counting system based on dense and close stereovision.
Paris-Sud XI, Université de
systems in transit based on various technologies namely: infrared sensors, ultrasound, car- pet contact.meurie, louahdi.khoudour}@inrets.fr 2 University of Sciences and Technology of Lille, (LAGIS laboratory) Ecole of this work is to provide a precise counting system and adapted to buses environment. The process- ing chain
Count Percent 889 82.46% I do this.
Hammack, Richard
Respondents Q11. - - I reuse or recycle paper, cardboard, beverage containers, plastics #1, #2 and #7, tin and plastic disposable containers. #12;1077 Respondents Count Percent 653 60.63% I do this. 250 23.21% I and glass containers, electronics, furniture, envelopes and folders. I also compost and dispose of hazardous
Communication-Efficient Distributed Monitoring of Thresholded Counts
Cormode, Graham
this distributed networked systems, a princi- pal concern is monitoring: either monitoring the environment surCommunication-Efficient Distributed Monitoring of Thresholded Counts Ram Keralapura ECE Department cormode@lucent.com Jai Ramamirtham Bell Laboratories Bangalore, India jai@lucent.com ABSTRACT Monitoring
Voting, Vote Capture & Vote Counting Kennedy School of Government
Camp, L. Jean
Voting, Vote Capture & Vote Counting Symposium June 2004 Kennedy School of Government Harvard The following document was developed by Jean Camp, Allan Friedman and Warigia Bowman of the Kennedy School based and the Kennedy School of Government. A gift to support #12;2 Summary Best Practices Rebecca Mercuri's work
Nonequilibrium fluctuations, fluctuation theorems, and counting statistics in quantum systems
Mukamel, Shaul
equations and Green's functions techniques for computing the energy and particle statistics are presentedNonequilibrium fluctuations, fluctuation theorems, and counting statistics in quantum systems 1665 II. Two-Point Measurement Statistics 1668 A. The forward probability 1668 B. The time
29Counting Atoms in a Molecule The complex molecule Propanal
29Counting Atoms in a Molecule The complex molecule Propanal was discovered in a dense interstellar is the ratio of carbon atoms to hydrogen atoms in propanal? Problem 4 - If the mass of a hydrogen atom of a propanal molecule in AMUs? Problem 5 - What is the complete chemical formula for propanal? C3 H __ O
Lei Sheng; Jie Zhang; Jing Liu
2014-01-30T23:59:59.000Z
The room temperature liquid metal is quickly emerging as an important functional material in a variety of areas like chip cooling, 3D printing or printed electronics etc. With diverse capabilities in electrical, thermal and flowing behaviors, such fluid owns many intriguing properties that had never been anticipated before. Here, we show a group of unconventional phenomena occurring on the liquid metal objects. Through applying electrical field on the liquid metals immersed in water, a series of complex transformation behaviors such as self-assembling of a sheet of liquid metal film into a single sphere, quick mergences of separate metal droplets, controlled self-rotation and planar locomotion of liquid metal objects can be realized. Meanwhile, it was also found that two accompanying water vortexes were induced and reliably swirled near the rotating liquid metal sphere. Further, effects of the shape, size, voltage, orientation and geometries of the electrodes to control the liquid metal transformers were clarified. Such events are hard to achieve otherwise on rigid metal or conventional liquid spheres. This finding has both fundamental and practical significances which suggest a generalized way of making smart soft machine, collecting discrete metal fluids, as well as flexibly manipulating liquid metal objects including accompanying devices.
Design Study of an Incinerator Ash Conveyor Counting System - 13323
Jaederstroem, Henrik; Bronson, Frazier [Canberra Industries Inc., 800 Research Parkway Meriden CT 06450 (United States)] [Canberra Industries Inc., 800 Research Parkway Meriden CT 06450 (United States)
2013-07-01T23:59:59.000Z
A design study has been performed for a system that should measure the Cs-137 activity in ash from an incinerator. Radioactive ash, expected to consist of both Cs-134 and Cs-137, will be transported on a conveyor belt at 0.1 m/s. The objective of the counting system is to determine the Cs-137 activity and direct the ash to the correct stream after a diverter. The decision levels are ranging from 8000 to 400000 Bq/kg and the decision error should be as low as possible. The decision error depends on the total measurement uncertainty which depends on the counting statistics and the uncertainty in the efficiency of the geometry. For the low activity decision it is necessary to know the efficiency to be able to determine if the signal from the Cs-137 is above the minimum detectable activity and that it generates enough counts to reach the desired precision. For the higher activity decision the uncertainty of the efficiency needs to be understood to minimize decision errors. The total efficiency of the detector is needed to be able to determine if the detector will be able operate at the count rate at the highest expected activity. The design study that is presented in this paper describes how the objectives of the monitoring systems were obtained, the choice of detector was made and how ISOCS (In Situ Object Counting System) mathematical modeling was used to calculate the efficiency. The ISOCS uncertainty estimator (IUE) was used to determine which parameters of the ash was important to know accurately in order to minimize the uncertainty of the efficiency. The examined parameters include the height of the ash on the conveyor belt, the matrix composition and density and relative efficiency of the detector. (authors)
LU transformation invariant operators and LU transformation invariant
Xin-wei Zha; Chun-min Zhang
2007-02-06T23:59:59.000Z
We proposed a concept of LU transformation invariant operators. By using this operator, arbitrary multi-qubit states LU transformation invariant and SLOCC invariant could be easily obtained. And we find that presences two kinds of invariant operators and corresponding invariants. One kind of operators yields LU invariants and the other operators results in SLOCC invariants. For three-qubit states, all independence LU transformation invariant are obtained. Furthermore, by this system method, arbitrary multi-qubit states invariants can be given.
Fourier transform and related integral transforms in superspace
Hendrik De Bie
2008-05-13T23:59:59.000Z
In this paper extensions of the classical Fourier, fractional Fourier and Radon transforms to superspace are studied. Previously, a Fourier transform in superspace was already studied, but with a different kernel. In this work, the fermionic part of the Fourier kernel has a natural symplectic structure, derived using a Clifford analysis approach. Several basic properties of these three transforms are studied. Using suitable generalizations of the Hermite polynomials to superspace (see [H. De Bie, F. Sommen, Hermite and Gegenbauer polynomials in superspace using Clifford analysis, J. Phys. A 40 (2007) 10441-10456]) an eigenfunction basis for the Fourier transform is constructed.
z Transform Chapter Intended Learning Outcomes
So, Hing-Cheung
z Transform Chapter Intended Learning Outcomes: (i) Understanding the relationship between transform and the Fourier transform for discrete-time signals (ii) Understanding the characteristics and properties of transform (iii) Ability to compute transform and inverse transform (iv) Ability to apply
Transformation Nets -A Runtime Model for Transformation Languages
Hochreiter, Sepp
as first-class arti- facts throughout the software lifecycle requiring the availability of proper of Software Technology and Interactive Systems Vienna University of Technology Favoritenstraße 9)--called Transformation Nets--for the development, execution and debugging of model transformations on a high level
Nano-optomechanical measurement in the photon counting regime
de Lépinay, Laure Mercier; Rohr, Sven; Gloppe, Arnaud; Kuhn, Aurélien; Verlot, Pierre; Dupont-Ferrier, Eva; Besga, Benjamin; Arcizet, Olivier
2015-01-01T23:59:59.000Z
Optically measuring in the photon counting regime is a recurrent challenge in modern physics and a guarantee to develop weakly invasive probes. Here we investigate this idea on a hybrid nano-optomechanical system composed of a nanowire hybridized to a single Nitrogen-Vacancy (NV) defect. The vibrations of the nanoresonator grant a spatial degree of freedom to the quantum emitter and the photon emission event can now vary in space and time. We investigate how the nanomotion is encoded on the detected photon statistics and explore their spatio-temporal correlation properties. This allows a quantitative measurement of the vibrations of the nanomechanical oscillator at unprecedentedly low light intensities in the photon counting regime when less than one photon is detected per oscillation period, where standard detectors are dark-noise-limited. These results have implications for probing weakly interacting nanoresonators, for low temperature experiments and for investigating single moving markers.
Synthesis of Reversible Functions Beyond Gate Count and Quantum Cost
Robert Wille; Mehdi Saeedi; Rolf Drechsler
2010-04-26T23:59:59.000Z
Many synthesis approaches for reversible and quantum logic have been proposed so far. However, most of them generate circuits with respect to simple metrics, i.e. gate count or quantum cost. On the other hand, to physically realize reversible and quantum hardware, additional constraints exist. In this paper, we describe cost metrics beyond gate count and quantum cost that should be considered while synthesizing reversible and quantum logic for the respective target technologies. We show that the evaluation of a synthesis approach may differ if additional costs are applied. In addition, a new cost metric, namely Nearest Neighbor Cost (NNC) which is imposed by realistic physical quantum architectures, is considered in detail. We discuss how existing synthesis flows can be extended to generate optimal circuits with respect to NNC while still keeping the quantum cost small.
Budnitz, R.J. [Future Resources Associates, Inc., Berkeley, CA (United States); Davis, P.R. [PRD Consulting (United States); Ravindra, M.K.; Tong, W.H. [EQE International, Inc., Irvine, CA (United States)
1994-08-01T23:59:59.000Z
In 1989 the US Nuclear Regulatory Commission (NRC) initiated an extensive program to examine carefully the potential risks during low-power and shutdown operations. The program included two parallel projects, one at Sandia National Laboratories studying a boiling water reactor (Grand Gulf), and the other at Brookhaven National Laboratory studying a pressurized water reactor (Surry Unit 1). Both the Sandia and Brookhaven projects have examined only accidents initiated by internal plant faults---so-called ``internal initiators.`` This project, which has explored the likelihood of seismic-initiated core damage accidents during refueling outage conditions, is complementary to the internal-initiator analyses at Brookhaven and Sandia. This report covers the seismic analysis at Grand Gulf. All of the many systems modeling assumptions, component non-seismic failure rates, and human effort rates that were used in the internal-initiator study at Grand Gulf have been adopted here, so that the results of the study can be as comparable as possible. Both the Sandia study and this study examine only one shutdown plant operating state (POS) at Grand Gulf, namely POS 5 representing cold shutdown during a refueling outage. This analysis has been limited to work analogous to a level-1 seismic PRA, in which estimates have been developed for the core-damage frequency from seismic events during POS 5. The results of the analysis are that the core-damage frequency for earthquake-initiated accidents during refueling outages in POS 5 is found to be quite low in absolute terms, less than 10{sup {minus}7}/year.
Replacing Motors Counting Savings: Results from a 100 Motor Study
Kaufman, N. M.
2006-01-01T23:59:59.000Z
REPLACING MOTORS, COUNTING SAVINGS: RESULTS FROM A 100 MOTOR STUDY Nicole M. Kaufman Motor Systems Engineer Advanced Energy Raleigh, NC ABSTRACT Software tools such as MotorMaster+ aid facility personnel in conducting payback... analyses for replacing motors. These tools make assumptions on the motors’ operational efficiency in their calculations. By observing 100 pre-EPCA (Energy Policy & Conservation Act) motors in operation, removing them from service and conducting IEEE...
Power counting regime of chiral extrapolation and beyond
Derek Leinweber; Anthony Thomas; Ross Young
2005-09-29T23:59:59.000Z
Finite-range regularized chiral effective field theory is presented in the context of approximation schemes ubiquitous in modern lattice QCD calculations. Using FRR techniques, the power-counting regime (PCR) of chiral perturbation theory can be estimated. To fourth-order in the expansion at the 1% tolerance level, we find 0 {le} m{sub {pi}} {le} 180 MeV for the PCR, extending only a small distance beyond the physical pion mass.
Replacing Motors Counting Savings: Results from a 100 Motor Study
Kaufman, N. M.
2006-01-01T23:59:59.000Z
REPLACING MOTORS, COUNTING SAVINGS: RESULTS FROM A 100 MOTOR STUDY Nicole M. Kaufman Motor Systems Engineer Advanced Energy Raleigh, NC ABSTRACT Software tools such as MotorMaster+ aid facility personnel in conducting payback... analyses for replacing motors. These tools make assumptions on the motors’ operational efficiency in their calculations. By observing 100 pre-EPCA (Energy Policy & Conservation Act) motors in operation, removing them from service and conducting IEEE...
Power Counting Regime of Chiral Extrapolation and Beyond
Derek B. Leinweber; Anthony W. Thomas; Ross D. Young
2005-10-12T23:59:59.000Z
Finite-range regularised (FRR) chiral effective field theory is presented in the context of approximation schemes ubiquitous in modern lattice QCD calculations. Using FRR techniques, the power-counting regime (PCR) of chiral perturbation theory can be estimated. To fourth-order in the expansion at the 1% tolerance level, we find m_\\pi < 180 MeV for the PCR, extending only a small distance beyond the physical pion mass.
Power counting renormalizability of scalar theory in Lifshitz spacetime
Takayuki Hirayama
2012-10-25T23:59:59.000Z
We analyse the power counting renormalizability of scalar theory in Lifshitz spacetime in D+2 dimensions. We show the spectral dimension becomes 2+(D/z) (z is the critical exponent) after integrating out the radion field. We comment on the AdS/CFT correspondence, and on how to avoid the Lifshitz singularity by flowing into AdS spacetime in the infrared. We also comment on the quantum gravity in Lifshitz spacetime.
Automatic alpha-track counting with image analysis systems
Shymanski, Michael Joseph
1990-01-01T23:59:59.000Z
to establish an explanation of why an increased calibration factor, for a track counting system, is observed with increasing photometer readings. Second, TSD measurements were made for films irradiated with a depleted uranium source in order to determine... the usefulness of uranium as a fast exposure facility for quality control (QC) films for the etch process. The results of this work concluded that uranium was not a good QC source for the current etching process for the exposure methods used. Finally, total...
Source Counts at 15 microns from the AKARI NEP Survey
Pearson, C P; Wada, T; Matsuhara, H; Lee, H M; Kim, S J; Takagi, T; Goto, T; Im, M S; Serjeant, S; Lee, M G; Ko, J W; White, G J; Ohyama, O
2010-01-01T23:59:59.000Z
We present galaxy counts at 15 microns using the Japanese AKARI satellite's NEP-deep and NEP-wide legacy surveys at the North Ecliptic Pole. The total number of sources detected are approximately 6700 and 10,700 down to limiting fluxes of 117 and 250 microJy (5 sigma) for the NEP-deep and NEP-wide survey respectively. We construct the Euclidean normalized differential source counts for both data sets (assuming 80 percent completeness levels of 200 and 270 microJy respectively) to produce the widest and deepest contiguous survey at 15 microns to date covering the entire flux range from the deepest to shallowest surveys made with the Infrared Space Observatory (ISO) over areas sufficiently significant to overcome cosmic variance, detecting six times as many sources as the largest survey carried out with ISO.We compare the results from AKARI with the previous surveys with ISO at the same wavelength and the Spitzer observations at 16 microns using the peek-up camera on its IRS instrument. The AKARI source counts ...
Modelling ISO Galaxy Counts with Luminosity and Merger Rate Evolution
Nathan Roche; Steve Eales
1998-12-10T23:59:59.000Z
We model galaxy evolution in the 6.75 and 15 micron passbands of the ISO satellite, by combining models of galaxy evolution at optical wavelengths (which are consistent with the optical galaxy counts) with observed spectral energy distributions in the infra-red. Our model is consistent with the local 12 micron galaxy luminosity, if 3.5 per cent of spirals at z=0 are in interacting pairs with mid-infra-red luminosities enhanced by major starbursts. Source counts from deep ISO surveys exceed non-evolving predictions but are more consistent with our evolving model. The steep number count of 6.75 micron sources appears to be explained primarily by evolving early-type galaxies, whereas at 15 microns the main contributors are star-forming spirals and starbursting interacting/merging galaxies. The 31 per cent of 15 micron sources which are visibly interacting galaxies have high mid-infra-red/optical flux ratios indicating major starbursts combined with dust extinction. The numbers and high mean redshift of these sources suggest the merger-starbursts are increasing in luminosity with redshift, approximately as (1+z)^2, in addition to undergoing (1+z)^2 number evolution reflecting the optically observed increase with redshift in the fraction of interacting galaxies.
Power counting renormalizability of quantum gravity in Lifshitz spacetime
Takayuki Hirayama
2012-10-25T23:59:59.000Z
We analyse the power counting renormalizability of the quantum field theory of Einstein or Einstein-Gauss-Bonnet gravity in D+2 dimensional Lifshitz spacetime. We show the spectral dimension becomes 2+(D/z) at the UV region where z is the critical exponent. Since it is larger than two, the quantum theory of Einstein gravity is not power counting renormalizable. For the pure Einstein-Gauss-Bonnet gravity, where Lifshitz spacetime is allowed only when the parameters are fine tuned, it happens that the graviton modes do not propagate and the quantum field theory is accidentally renormalizable when z>=D. Another method is discretizing the radial coordinate which changes the spectral dimension to 1+(D/z) at the UV region. Since our four dimensional spacetime is continuous, the four dimensional Lorentz symmetry is recovered at the low energy and the power counting renormalizability is still kept for z>=D, if the spacetime near the null singularity in Lifshitz spacetime is modified into AdS spacetime and the discrete radial direction is compactified like a brane world scenario. We also comment on the AdS/CFT correspondence.
Leydesdorff, Loet; Bornmann, Lutz
2012-01-01T23:59:59.000Z
Using the CD-ROM version of the Science Citation Index 2010 (N = 3,705 journals), we study the (combined) effects of (i) fractional counting on the impact factor (IF) and (ii) transformation of the skewed citation distributions into a distribution of 100 percentiles and six percentile rank classes (top-1%, top-5%, etc.). Do these approaches lead to field-normalized impact measures for journals? In addition to the two-year IF (IF2), we consider the five-year IF (IF5), the respective numerators of these IFs, and the number of Total Cites, counted both as integers and fractionally. These various indicators are tested against the hypothesis that the classification of journals into 11 broad fields by PatentBoard/National Science Foundation provides (statistically) significant between-field effects. Using fractional counting the between-field variance is reduced by 91.7% in the case of IF5, and by 79.2% in the case of IF2. However, the differences in citation counts are not significantly affected by fractional coun...
LORENTZ TRANSFORMATIONS AND STATISTICAL MECHANICS
class of Lorentz transformations corresponding to radiation made its * *ap- pearance. We have yet to see a description of these "radiation" transformations* * in the Physics literature, 15A63. Key words and phrases. exponential map, singularity, electro-magnetism, ener* *gy
Automated counting of cell bodies using Nissl stained cross-sectional images
D'Souza, Aswin Cletus
2008-10-10T23:59:59.000Z
the manual counting of cell numbers is a near impossible task considering the sizes and numbers involved, an automated approach is the obvious alternative to arrive at the cell count. In this thesis, a software application is described that automatically...
Automated counting of cell bodies using Nissl stained cross-sectional images
D'Souza, Aswin Cletus
2009-05-15T23:59:59.000Z
the manual counting of cell numbers is a near impossible task considering the sizes and numbers involved, an automated approach is the obvious alternative to arrive at the cell count. In this thesis, a software application is described that automatically...
Powered by NERSC, A Database of Billions of Genes and Counting...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Powered by NERSC, a Database of Billions of Genes and Counting Powered by NERSC, a Database of Billions of Genes and Counting With More than a Billion Microbial genes, IMGM...
The Hyperanalytic Wavelet Transform
S. C. Olhede; G. Metikas
2006-05-23T23:59:59.000Z
In this paper novel classes of 2-D vector-valued spatial domain wavelets are defined, and their properties given. The wavelets are 2-D generalizations of 1-D analytic wavelets, developed from the Generalized Cauchy-Riemann equations and represented as quaternionic functions. Higher dimensionality complicates the issue of analyticity, more than one `analytic' extension of a real function is possible, and an `analytic' analysis wavelet will not necessarily construct `analytic' decomposition coefficients. The decomposition of locally unidirectional and/or separable variation is investigated in detail, and two distinct families of hyperanalytic wavelet coefficients are introduced, the monogenic and the hypercomplex wavelet coefficients. The recasting of the analysis in a different frame of reference and its effect on the constructed coefficients is investigated, important issues for sampled transform coefficients. The magnitudes of the coefficients are shown to exhibit stability with respect to shifts in phase. Hyperanalytic 2-D wavelet coefficients enable the retrieval of a phase-and-magnitude description of an image in phase space, similarly to the description of a 1-D signal with the use of 1-D analytic wavelets, especially appropriate for oscillatory signals. Existing 2-D directional wavelet decompositions are related to the newly developed framework, and new classes of mother wavelets are introduced.
Coordinated avifaunal roadCounts (Car) inforMation sHeet no. 1 June 2013
de Villiers, Marienne
Coordinated avifaunal roadCounts (Car) inforMation sHeet no. 1 June 2013 HoW to Count This information sheet is intended as a guide for CAR counts anywhere in South Africa, but minor regional, your map and route description, relevant newsletter and the CAR roadcount form. Bird books, hat, lunch
Computation That Counts c 2006 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 620
Lyuu, Yuh-Dauh
Computation That Counts c 2006 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 620 #12 2006 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 621 #12;Decision and Counting Problems · FP direction is open. c 2006 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 622 #12;A Counting Problem
Computation That Counts c 2008 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 730
Lyuu, Yuh-Dauh
Computation That Counts c 2008 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 730 #12 2008 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 731 #12;Decision and Counting Problems · FP direction is open. c 2008 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 732 #12;A Counting Problem
Gong, Shaogang
CHEN, LOY, GONG, XIANG: FEATURE MINING FOR LOCALISED CROWD COUNTING 1 Feature Mining for Localised Crowd Counting Ke Chen1 cory@eecs.qmul.ac.uk Chen Change Loy2 ccloy@visionsemantics.com Shaogang Gong1 in print or electronic forms. #12;2 CHEN, LOY, GONG, XIANG: FEATURE MINING FOR LOCALISED CROWD COUNTING
Formal Transformations and WSL Martin Ward
Singer, Jeremy
Formal Transformations and WSL Part Two Martin Ward STRL Senior Research Fellow Royal Society of Transformations #12;Types of Transformations A Syntactic Transformation changes the syntax of the program but preserves the exact sequence of operations carried out by the program. Many restructuring transformations
Transformer Efficiency Assessment - Okinawa, Japan
Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush
2012-08-01T23:59:59.000Z
The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.
Transformer Efficiency Assessment - Okinawa, Japan
Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush
2012-05-01T23:59:59.000Z
The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.
Neutron counting and gamma spectroscopy with PVT detectors.
Mitchell, Dean James; Brusseau, Charles A.
2011-06-01T23:59:59.000Z
Radiation portals normally incorporate a dedicated neutron counter and a gamma-ray detector with at least some spectroscopic capability. This paper describes the design and presents characterization data for a detection system called PVT-NG, which uses large polyvinyl toluene (PVT) detectors to monitor both types of radiation. The detector material is surrounded by polyvinyl chloride (PVC), which emits high-energy gamma rays following neutron capture reactions. Assessments based on high-energy gamma rays are well suited for the detection of neutron sources, particularly in border security applications, because few isotopes in the normal stream of commerce have significant gamma ray yields above 3 MeV. Therefore, an increased count rate for high-energy gamma rays is a strong indicator for the presence of a neutron source. The sensitivity of the PVT-NG sensor to bare {sup 252}Cf is 1.9 counts per second per nanogram (cps/ng) and the sensitivity for {sup 252}Cf surrounded by 2.5 cm of polyethylene is 2.3 cps/ng. The PVT-NG sensor is a proof-of-principal sensor that was not fully optimized. The neutron detector sensitivity could be improved, for instance, by using additional moderator. The PVT-NG detectors and associated electronics are designed to provide improved resolution, gain stability, and performance at high-count rates relative to PVT detectors in typical radiation portals. As well as addressing the needs for neutron detection, these characteristics are also desirable for analysis of the gamma-ray spectra. Accurate isotope identification results were obtained despite the common impression that the absence of photopeaks makes data collected by PVT detectors unsuitable for spectroscopic analysis. The PVT detectors in the PVT-NG unit are used for both gamma-ray and neutron detection, so the sensitive volume exceeds the volume of the detection elements in portals that use dedicated components to detect each type of radiation.
Refinery Outages: First Half 2015
Gasoline and Diesel Fuel Update (EIA)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports to3,1,50022,3,,0,,6,1,Separation 23 362 334 318 706 802 1979-2013October 3, 2002 (next releaseCapacity Report June 2015
Refinery Outages: First Half 2015
U.S. Energy Information Administration (EIA) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home PageSummary" ,"Click worksheet,167,371 6,826,192InputPrice (Percent) YearThousand2009CORPORATION /Fall 2014First
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a g eWorksVillage of Brewster, OhioLonghui Hydropowercitiesimages Homeloadoutages Home Graham7781's
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a gHigh Plains WindInformationNVN-079666NewOlsen Wind FarmPublic Artnotes-call
Power-counting and Renormalizability in Lifshitz Scalar Theory
Toshiaki Fujimori; Takeo Inami; Keisuke Izumi; Tomotaka Kitamura
2015-02-06T23:59:59.000Z
We study the renormalizability in theories of a self-interacting Lifshitz scalar field. We show that although the statement of power-counting is true at one-loop order, in generic cases where the scalar field is dimensionless, an infinite number of counter terms are involved in the renormalization procedure. This problem can be avoided by imposing symmetries, the shift symmetry in the present paper, which allow only a finite number of counter terms to appear. The symmetry requirements might have important implications for the construction of matter field sectors in the Horava-Lifshitz gravity.
Power-counting and Renormalizability in Lifshitz Scalar Theory
Fujimori, Toshiaki; Izumi, Keisuke; Kitamura, Tomotaka
2015-01-01T23:59:59.000Z
We study the renormalizability in theories of a self-interacting Lifshitz scalar field. We show that although the statement of power-counting is true at one-loop order, in generic cases where the scalar field is dimensionless, an infinite number of counter terms are involved in the renormalization procedure. This problem can be avoided by imposing symmetries, the shift symmetry in the present paper, which allow only a finite number of counter terms to appear. The symmetry requirements might have important implications for the construction of matter field sectors in the Horava-Lifshitz gravity.
On the counting of holomorphic discs in toric Fano manifolds
Cheol-Hyun Cho
2014-03-18T23:59:59.000Z
Open Gromov-Witten invariants in general are not well-defined. We discuss in detail the enumerative numbers of the Clifford torus $T^2$ in $\\CP^2$. For cyclic A-infinity algebras, we show that certain generalized way of counting may be defined up to Hochschild or cyclic boundary elements. In particular we obtain a well-defined function on Hochschild or cyclic homology of a cyclic A-infinity algebra, which has invariance property under cyclic A-infinity homomorphism. We discuss an example of Clifford torus $T^2$ and compute the invariant for a specific cyclic cohomology class.
The cosmology dependence of weak lensing cluster counts
Laura Marian; Robert E. Smith; Gary M. Bernstein
2009-06-30T23:59:59.000Z
We present the main results of a numerical study of weak lensing cluster counting. We examine the scaling with cosmology of the projected-density-peak mass function. Our main conclusion is that the projected-peak and the three-dimensional mass functions scale with cosmology in an astonishingly close way. This means that, despite being derived from a two-dimensional field, the weak lensing cluster abundance can be used to constrain cosmology in the same way as the three-dimensional mass function probed by other types of surveys.
Determination of glomerular filtration rate by external counting methods
Sartor, Tammy Lee
1981-01-01T23:59:59.000Z
comparing the DTPA to other accepted methods; the results were very favorable for the use of ggmTC-DTPA. Klopper et al. , sa1d mTc-DTPA ". . . rapidly prepared by a kit method, is a useful addition to the list of radiopharmaceuticals that can be used... points. First, the external counting method is suitable as a true means of determining the glomerular filtration rate (GFR). Second, the method is applicable to cats. To do this, five dogs were injected with ggmTc(Sn)-DTPA. Plasma samples were drawn...
Automatic alpha-track counting with image analysis systems
Shymanski, Michael Joseph
1990-01-01T23:59:59.000Z
concentration. Typical environmental concentrations of uranium and radium in soils are estimated as 40 Bq kg-' or approximately 1000 pCi kg-i (BEIR IV). This concentration typically results in a radon flux at the soil/atmosphere interface of 4. 5x10-~ Bq m-~ s-t... to establish an explanation of why an increased calibration factor, for a track counting system, is observed with increasing photometer readings. Second, TSD measurements were made for films irradiated with a depleted uranium source in order to determine...
Students Count -- From the Classroom to the Conference | Department of
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (MillionStructural Basis of Wnt Recognition byStructureStructuresStudent SummerEnergy Count --
TRANSFORMING ACADEMIA Historical Developments, Contemporary Perspectives and
Li, Mo
ISyE 8803A TRANSFORMING ACADEMIA Historical Developments, Contemporary Perspectives independence and this organizational structure represent the first major transformation of academia. These characteristics of academia have persisted for over 900 years and seem immutable. Yet, notable transformations
Transforms for the Motion Compensation Residual
Kamisli, Fatih
The Discrete-Cosine-Transform (DCT) is the most widely used transform in image and video compression. Its use in image compression is often justified by the notion that it is the statistically optimal transform for first-order ...
HIGH-TECH BUILDINGS MARKET TRANSFORMATION PROJECT
LBNL-49112 HT-457 HIGH-TECH BUILDINGS MARKET TRANSFORMATION PROJECT Cleanroom Energy Benchmarking High-Performance Fume Hood Demonstration/Test Market Transformation Activities FINAL REPORT ........................................................................................3 Market Transformation Activities
Transformations of Conditional Rewrite Systems (Extended Abstract)
Gramlich, Bernhard
Transformations of Conditional Rewrite Systems Revisited (Extended Abstract) Karl Gmeiner and Bernhard Gramlich TU Wien, Austria, {gmeiner,gramlich}@logic.at We revisit known transformations for describing and classifying such transformations, discuss the major problems arising, pro- vide simplified
National Symposium on Market Transformation
Broader source: Energy.gov [DOE]
Hosted by the American Council for an Energy-Efficient Economy (ACEEE) and the Consortium for Energy Efficiency (CEE), this three-day conference features speakers covering topics within the scope of market transformation.
Reservoir characterization using wavelet transforms
Rivera Vega, Nestor
2004-09-30T23:59:59.000Z
Automated detection of geological boundaries and determination of cyclic events controlling deposition can facilitate stratigraphic analysis and reservoir characterization. This study applies the wavelet transformation, a recent advance in signal...
Chinese Passives: Transformational or Lexical?
Zhang, Jiuwu; Wen, Xiaohong
1989-01-01T23:59:59.000Z
There are two types of passive constructions in Chinese. Type I is a syntactic passive since it is derived through a transformational rule. Type II is a lexical passive. It has certain properties in common with the predicate ...
Presidential address Geomycology: biogeochemical transformations
Ahmad, Sajjad
Corresponding Editor: David L. Hawksworth Keywords: Carbonates Clay minerals Environmental biotechnology Lichens of the fungal transformations discussed have beneficial applications in environmental biotechnology, e and radionuclides by fungi, bioweathering and bioremediation Geoffrey M. GADD* Division of Environmental and Applied
Physical transformations between quantum states
Zejun Huang; Chi-Kwong Li; Edward Poon; Nung-Sing Sze
2012-10-26T23:59:59.000Z
Given two sets of quantum states {A_1, ..., A_k} and {B_1, ..., B_k}, represented as sets of density matrices, necessary and sufficient conditions are obtained for the existence of a physical transformation T, represented as a trace-preserving completely positive map, such that T(A_i) = B_i for i = 1, ..., k. General completely positive maps without the trace-preserving requirement, and unital completely positive maps transforming the states are also considered.
Coupled diffusional/displacive transformations
Mujahid, Shafiq Ahmad
), TRIP steels (transformation in- duced plasticity), ausforming steels (plastically deformed austenite prior to quenching) and dual phase steels (a mixture of ferrite + martensite obtained by quenching from the 1+ Q' field). a c b d Figure 1... Supersaturated Ferrite Plates 137 v Abstract The displacive transformation of austenite to ferrite in steels containing both substitutional and interstitial elements has been studied. The aim was to establish the conditions under which plates of the product phase...
Herschlag, Dan
Supporting Information: GM Giambau et al Ion counting from explicit solvent simulations and 3D, Stanford University, Stanford, CA 94305 USA; ¶ These authors contributed equally GM Giambau and T Luchko Information: GM Giambau et al Ion counting from explicit solvent simulations and 3D-RISM S02 Numerical
Metamaterial flexible sheets could transform optics
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Metamaterial flexible sheets could transform optics Metamaterial flexible sheets could transform optics Advances would boost security screening systems, infrared thermal cameras,...
Small Market Advanced Retrofit Transformation Program (SMART...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Transformation Program (SMART Scale) - 2014 BTO Peer Review Presenter: Colin Clark, Ecology Action of Santa Cruz Ecology Action's Small Market Advanced Retrofit Transformation...
Ecology Action: Small Market Advanced Retrofit Transformation...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Ecology Action: Small Market Advanced Retrofit Transformation Program - 2015 Peer Review Ecology Action: Small Market Advanced Retrofit Transformation Program - 2015 Peer Review...
Market Transformation: Fuel Cell Early Adoption (Presentation...
Office of Environmental Management (EM)
Transformation: Fuel Cell Early Adoption (Presentation) Market Transformation: Fuel Cell Early Adoption (Presentation) Presented at the DOE Fuel Cell Pre-Solicitation Workshop held...
Energy Department Finalizes Loan Guarantee for Transformational...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
for Transformational Rooftop Solar Project Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project September 30, 2011 - 3:37pm Addthis Washington D.C....
Environmental Report Project Transforms Students into Informed...
Environmental Report Project Transforms Students into Informed Stakeholders Environmental Report Project Transforms Students into Informed Stakeholders June 20, 2014 - 9:49am...
Structure and Transformation of Amorphous Calcium Carbonate:...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Transformation of Amorphous Calcium Carbonate: A Solid-State 43Ca NMR and Computational Molecular Dynamics Structure and Transformation of Amorphous Calcium Carbonate: A...
National Electric Delivery Technologies Roadmap: Transforming...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Delivery Technologies Roadmap: Transforming the Grid to Revolutionize Electric Power in North America National Electric Delivery Technologies Roadmap: Transforming the Grid to...
Number Count of Peaks in the CMB Map
Toshifumi Futamase; Masahiro Takada
2000-09-11T23:59:59.000Z
We investigate the dependence of cosmological parameters on the number count of peaks (local maxima and minima) in the cosmic microwave background (CMB) sky. The peak statistics contains the whole information of acoustic oscillations in the angular power spectrum $C_l$ over $l$-space and thus it can place complementary constraints on the cosmological parameters to those obtained from measurements of $C_l$. Based on the instrumental specifications of Planck, we find that the number count of peaks can provide new constraints on the combination of the matter density $\\Omega_{\\rm m}$ and the Hubble parameter $h$ approximately scaled as $\\Omega_{\\rm m} h^{-4.9}$ for a flat $\\Lambda$CDM model with $\\Omega_{m}=0.3$ and $h=0.7$. Therefore, we suggest that combining it with the constraints from $C_l$ scaled as $\\Omega_{m}h^{3.8}$ (or commonly $\\Omega_{\\rm m}h^2$) can potentially determine $\\Omega_{\\rm m}$ or equivalently solve the cosmic degeneracy by the CMB data alone.
Measuring primordial non-Gaussianity through weak lensing peak counts
Laura Marian; Stefan Hilbert; Robert E. Smith; Peter Schneider; Vincent Desjacques
2012-04-18T23:59:59.000Z
We explore the possibility of detecting primordial non-Gaussianity of the local type using weak lensing peak counts. We measure the peak abundance in sets of simulated weak lensing maps corresponding to three models f_NL={0, +100, -100}. Using survey specifications similar to those of Euclid and without assuming any knowledge of the lens and source redshifts, we find the peak functions of the non-Gaussian models with f_NL=+-100 to differ by up to 15% from the Gaussian peak function at the high-mass end. For the assumed survey parameters, the probability of fitting an f_NL=0 peak function to the f_NL=+-100 peak functions is less than 0.1%. Assuming the other cosmological parameters known, f_NL can be measured with an error \\Delta f_NL ~ 13. It is therefore possible that future weak lensing surveys like Euclid and LSST may detect primordial non-Gaussianity from the abundance of peak counts, and provide complementary information to that obtained from the cosmic microwave background.
Dobson, Ian
and mitigated. The electric power infrastructure is vital in maintaining our so- ciety, and maintaining high reliability is especially impor- tant as the electric power infrastructure is being transformed in response and the probability distribution of load shed in simulated blackouts of an electric power system. The average
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
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.
Cloning Hubble Deep Fields II: Models for Evolution by Bright Galaxy Image Transformation
Rychard J. Bouwens; Tom Broadhurst; Joseph Silk
1998-10-29T23:59:59.000Z
In a companion paper we outlined a methodology for generating parameter-free, model-independent ``no-evolution'' fields of faint galaxy images, demonstrating the need for significant evolution in the HDF at faint magnitudes. Here we incorporate evolution into our procedure, by transforming the input bright galaxy images with redshift, for comparison with the HDF at faint magnitudes. Pure luminosity evolution is explored assuming that galaxy surface brightness evolves uniformly, at a rate chosen to reproduce the I-band counts. This form of evolution exacerbates the size discrepancy identified by our no-evolution simulations, by increasing the area of a galaxy visible to a fixed isophote. Reasonable dwarf-augmented models are unable to generate the count excess invoking moderate rates of stellar evolution. A plausible fit to the counts and sizes is provided by `mass-conserving' density-evolution, consistent with small-scale hierarchical growth, where the product of disk area and space density is conserved with redshift. Here the increased surface brightness generated by stellar evolution is accomodated by the reduced average galaxy size, for a wide range of geometries. These models are useful for assessing the limitations of the HDF images, by calculating their rates of incompleteness and the degree of over-counting. Finally we demonstrate the potential for improvement in quantifying evolution at fainter magnitudes using the HST Advanced Camera, with its superior UV and optical performance.
The linear power spectrum of observed source number counts
Challinor, Anthony
2011-01-01T23:59:59.000Z
We relate the observable number of sources per solid angle and redshift to the underlying proper source density and velocity, background evolution and line-of-sight potentials. We give an exact result in the case of linearized perturbations assuming general relativity. This consistently includes contributions of the source density perturbations and redshift distortions, magnification, radial displacement, and various additional linear terms that are small on sub-horizon scales. In addition we calculate the effect on observed luminosities, and hence the result for sources observed as a function of flux, including magnification bias and radial-displacement effects. We give the corresponding linear result for a magnitude-limited survey at low redshift, and discuss the angular power spectrum of the total count distribution. We also calculate the cross-correlation with the CMB polarization and temperature including Doppler source terms, magnification, redshift distortions and other velocity effects for the sources...
Certified counting of roots of random univariate polynomials
Joseph Cleveland; Jeffrey Dzugan; Jonathan D. Hauenstein; Ian Haywood; Dhagash Mehta; Anthony Morse; Leonardo Robol; Taylor Schlenk
2014-12-04T23:59:59.000Z
A challenging problem in computational mathematics is to compute roots of a high-degree univariate random polynomial. We combine an efficient multiprecision implementation for solving high-degree random polynomials with two certification methods, namely Smale's $\\alpha$-theory and one based on Gerschgorin's theorem, for showing that a given numerical approximation is in the quadratic convergence region of Newton's method of some exact solution. With this combination, we can certifiably count the number of real roots of random polynomials. We quantify the difference between the two certification procedures and list the salient features of both of them. After benchmarking on random polynomials where the coefficients are drawn from the Gaussian distribution, we obtain novel experimental results for the Cauchy distribution case.
The normalization of citation counts based on classification systems
Bornmann, Lutz; Barth, Andreas
2013-01-01T23:59:59.000Z
If we want to assess whether the paper in question has had a particularly high or low citation impact compared to other papers, the standard practice in bibliometrics is to normalize citations in respect of the subject category and publication year. A number of proposals for an improved procedure in the normalization of citation impact have been put forward in recent years. Against the background of these proposals this study describes an ideal solution for the normalization of citation impact: in a first step, the reference set for the publication in question is collated by means of a classification scheme, where every publication is associated with a single principal research field or subfield entry (e. g. via Chemical Abstracts sections) and a publication year. In a second step, percentiles of citation counts are calculated for this set and used to assign the normalized citation impact score to the publications (and also to the publication in question).
The Ideal Transformer Description and Circuit Symbol
King, Roger
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
Transformations on Willmore surfaces Katrin Leschke
Banaji,. Murad
Transformations on Willmore surfaces Katrin Leschke Habilitationsschrift zur Erlangung der Venia . . . . . . . . . . . . . . . . . . . . . . . . . . 43 2 Transformations on conformal maps 47 2.1 The Darboux transformation . . . . . . . . . . . . . . . . . . . . . . . . . 47 2.1.1 The classical Darboux transformation on isothermic surfaces . . . 48 2.1.2 The spectral
Continuous Cooling Transformation (CCT) Assistant Professor
Cambridge, University of
Continuous Cooling Transformation (CCT) Diagrams R. Manna Assistant Professor Centre of Advanced.ac.uk #12;Continuous cooling transformation (CCT) diagram There are two types of CCT diagrams I) Plot and transformation finish temperature against transformation time on each cooling curve II) Plot of (for each type
Phase Transformations in Confined Nanosystems
Shield, Jeffrey E. [Department of Mechanical & Materials Engineering] [Department of Mechanical & Materials Engineering; Belashchenko, Kirill [Department of Physics & Astronomy] [Department of Physics & Astronomy
2014-04-29T23:59:59.000Z
This project discovered that non-equilibrium structures, including chemically ordered structures not observed in bulk systems, form in isolated nanoscale systems. Further, a generalized model was developed that effectively explained the suppression of equilibrium phase transformations. This thermodynamic model considered the free energy decrease associated with the phase transformation was less than the increase in energy associated with the formation of an interphase interface, therefore inhibiting the phase transformation. A critical diameter exists where the system transitions to bulk behavior, and a generalized equation was formulated that successfully predicted this transition in the Fe-Au system. This provided and explains a new route to novel structures not possible in bulk systems. The structural characterization was accomplished using transmission electron microscopy in collaboration with Matthew Kramer of Ames Laboratory. The PI and graduate student visited Ames Laboratory several times a year to conduct the experiments.
Polyanalytic relativistic second Bargmann transforms
Zouhair Mouayn
2015-04-01T23:59:59.000Z
We construct coherent states through special superpositions of photon number states of the relativistic isotonic oscillator. In each superposition the coefficients are chosen to be L 2 eingenfunctions of a sigma weight Maass Laplacian on the Poincare disk, which are associated with discrete eigenvalues. For each nonzero m the associated coherent states transform constitutes the m true polyanalytic extension of a relativistic version of the second Bargmann transform, whose integral kernel is expressed in terms of a special Appel Kampe de Feriet hypergeometric function. The obtained results could be used to extend the known semi classical analysis of quantum dynamics of the relativistic isotonic oscillator.
Fourier transforms of UD integrals
Igor Kondrashuk; Anatoly Kotikov
2008-02-23T23:59:59.000Z
UD integrals published by N. Usyukina and A. Davydychev in 1992-1993 are integrals corresponding to ladder-type Feynman diagrams. The results are UD functions $\\Phi^{(L)},$ where $L$ is the number of loops. They play an important role in N=4 supersymmetic Yang-Mills theory. The integrals were defined and calculated in the momentum space. In this paper the position space representation of UD functions is investigated. We show that Fourier transforms of UD functions are UD functions of space-time intervals but this correspondence is indirect. For example, the Fourier transform of the second UD integral is the second UD integral.
Development of Toroidal Core Transformers
Leon, Francisco
2014-05-31T23:59:59.000Z
The original objective of this project was to design, build and test a few prototypes of singlephase dry-type distribution transformers of 25 kVA, 2.4 kV primary to 120 V transformers using cores made of a continuous steel strip shaped like a doughnut (toroid). At different points during the development of the project, the scope was enhanced to include the more practical case of a 25 kVA transformer for a 13.8 kV primary system voltage. Later, the scope was further expanded to design and build a 50 kVA unit to transformer voltage from 7.62 kV to 2x120 V. This is a common transformer used by Con Edison of New York and they are willing to test it in the field. The project officially started in September 2009 and ended in May 2014. The progress was reported periodically to DOE in eighteen quarterly reports. A Continuation Application was submitted to DOE in June 2010. In May 2011 we have requested a non-cost extension of the project. In December 2011, the Statement of Project Objectives (SOPO) was updated to reflect the real conditions and situation of the project as of 2011. A second Continuation Application was made and funding was approved in 2013 by DOE and the end date was extended to May 2014. The technical challenges that were overcome in this project include: the development of the technology to pass the impulse tests, derive a model for the thermal performance, produce a sound mechanical design, and estimate the inrush current. However, the greatest challenge that we faced during the development of the project was the complications of procuring the necessary parts and materials to build the transformers. The actual manufacturing process is relatively fast, but getting all parts together is a very lengthy process. The main products of this project are two prototypes of toroidal distribution transformers of 7.62 kV (to be used in a 13.8 kV system) to 2x120 V secondary (standard utilization voltage); one is rated at 25 kVA and the other at 50 kVA. The 25 kVA transformer passed the impulse test in KEMA high-voltage laboratories. Additional products include: nine papers published in the IEEE Transactions on Power Delivery, one patent has been filed, three PhD students weresupported from beginning to graduation, five postdoctoral fellows, and three MSc students were partially supported. The electrical characteristics of our dry-type toroidal transformers are similar to those of the oil-immersed pole mounted transformers currently in use by many utilities, but toroids have higher efficiency. The no-load losses of the 50 kVA prototype are only 45 W. A standard transformer has no-load losses between 90 and 240 W. Thus, even the finest transformer built today with standard technology has double the amount of no-load losses than the prototype toroidal transformer. When the manufacturing process is prepared for mass production, the cost of a dry-type toroidal transformer would be similar to the price of an oil-filed standard design. However, because of the greatly reduced losses, the total ownership cost of a toroidal transformer could be about half of a traditional design. We got a grant from Power Bridge NY in the amount of $149,985 from June 2014 to May 2015 to continue developing the transformer with commercialization objectives. We are considering the possibility to incorporate a company to manufacture the transformers and have contacted investors. The current status of the real life testing is as follows: after several months of silence, Con Edison has re-started conversations and has shown willingness to test the transformer. Other companies, PSE&G and National Grid have recently also shown interest and we will present our product to them soon.
Radon monitoring and early low background counting at the Sanford Underground Laboratory
Thomas, K.J.
2012-01-01T23:59:59.000Z
Radon Monitoring and Early Low Background Counting at theCA 94720, USA Abstract. Radon detectors have been deployedin Lead, SD. Currently, no radon mitigation measures are in
Loops and Power Counting in the High Density Effective Field Theory
Thomas Schaefer
2003-10-15T23:59:59.000Z
We introduce the high density effective theory of QCD. We discuss, in particular, the problem of developing a consistent power counting scheme.
Gogolla, Martin - Fachbereich 3
Model Transformations? Transformation Models! Jean Bezivin (A) , Fabian BË?uttner (B) , Martin of the current work on model transformations seems essentially operational and executable in nature. Executable, transformations can also be viewed as descriptive models by stating only the properties a transformation has
ENGI 2422 Laplace Transforms Page 5-01 5.01 Transforms
George, Glyn
ENGI 2422 Laplace Transforms Page 5-01 5.01 Transforms In some situations, a difficult problem can be transformed into an easier problem, whose solution can be transformed back into the solution of the original problem. For example, an integrating factor can sometimes be found to transform a non-exact first order
On the equivalence of state transformer semantics and predicate transformer semantics
Keimel, Klaus
On the equivalence of state transformer semantics and predicate transformer semantics Dedicated and the author [13] have worked out the equivalence between state transformer semantics and predicate transformer the last section, where the equivalence of predicate and state transformer semantics is finally put
The Dual Horospherical Radon Transform as a Limit of Spherical Radon Transforms
Pasquale, Angela
The Dual Horospherical Radon Transform as a Limit of Spherical Radon Transforms J. Hilgert, A of G. The horospherical Radon transform maps functions on X to functions on HorX by integrating over the dual horospherical Radon transform as a limit of dual spherical Radon transforms. 1. Introduction
Transforming California's Freight Transport System
California at Davis, University of
Support logistics growth and new jobs Improve ports' competitiveness Improve passenger mobility Drivers to Transform Freight System 10 #12;Sustainable Freight Elements Mechanism to attract cleaner, more fuel and Scoping Plan Develop actionable steps to achieve long-term goals 13 Sustainable Freight Initiative 13
Some Special Fourier Transform Pairs
Vickers, James
Some Special Fourier Transform Pairs 24.3 Introduction ' & $ % Prerequisites Before starting to . . . #12;1. Parseval's Theorem Recall from Unit 2 on Fourier Series that for a periodic signal fT (t) with complex Fourier coefficients cn(n = 0, Â±1, Â±2, . . .) Parseval's Theorem holds: 1 T + T 2 - T 2 f2 T (t
PHASE TRANSFORMATIONSPHASE TRANSFORMATIONS Nucleation & Growth
Subramaniam, Anandh
;Energies involved Bulk Gibbs free energy Interfacial energy Strain energy Important in solid to solid at constant T & P), (ii) increase in (interface free-energy), (iii) increase in strain energy. In a liquid). Volume of transformed material New interface created #12;Energies involved Bulk Gibbs free energy
Induced geometry from disformal transformation
Fang-Fang Yuan; Peng Huang
2015-02-08T23:59:59.000Z
In this note, we use the disformal transformation to induce a geometry from the manifold which is originally Riemannian. The new geometry obtained here can be considered as a generalization of Weyl integrable geometry. Based on these results, we further propose a geometry which is naturally a generalization of Weyl geometry.
The Generalized Stieltjes Transform and Its Inverse
John H. Schwarz
2004-05-18T23:59:59.000Z
The generalized Stieltjes transform (GST) is an integral transform that depends on a parameter $\\rho > 0$. In previous work a convenient form of the inverse transformation was derived for the case $\\rho = 3/2$. This paper generalizes that result to all $\\rho > 0$. It is a well-known fact that the GST can be formulated as an iterated Laplace transform, and that therefore its inverse can be expressed as an iterated inverse Laplace transform. The form of the inverse transform derived here is a one-dimensional integral that is considerably simpler.
Canonical linearized Regge Calculus: counting lattice gravitons with Pachner moves
Philipp A. Hoehn
2014-11-24T23:59:59.000Z
We afford a systematic and comprehensive account of the canonical dynamics of 4D Regge Calculus perturbatively expanded to linear order around a flat background. To this end, we consider the Pachner moves which generate the most basic and general simplicial evolution scheme. The linearized regime features a vertex displacement (`diffeomorphism') symmetry for which we derive an abelian constraint algebra. This permits to identify gauge invariant `lattice gravitons' as propagating curvature degrees of freedom. The Pachner moves admit a simple method to explicitly count the gauge and `graviton' degrees of freedom on an evolving triangulated hypersurface and we clarify the distinct role of each move in the dynamics. It is shown that the 1-4 move generates four `lapse and shift' variables and four conjugate vertex displacement generators; the 2-3 move generates a `graviton'; the 3-2 move removes one `graviton' and produces the only non-trivial equation of motion; and the 4-1 move removes four `lapse and shift' variables and trivializes the four conjugate symmetry generators. It is further shown that the Pachner moves preserve the vertex displacement generators. These results may provide new impetus for exploring `graviton dynamics' in discrete quantum gravity models.
AACR Cancer Progress Report 2012 Making Research Count for Patients: A New Day
Sherman, S. Murray
AACR Cancer Progress Report 2012 Making Research Count for Patients: A New Day www.cancerprogressreport.org · www.aacr.org #12;AACR Cancer Progress Report 2012 Making Research Count for Patients: A New Day www.cancerprogressreport.org · www.aacr.org Also published as: American Association for Cancer Research. AACR cancer progress report
Identification of Local Clusters for Count Data: A Model-Based Moran's I Test
Zhang, Tonglin
in detecting local clusters by local association terms with an acceptable type I error probability. When usedIdentification of Local Clusters for Count Data: A Model-Based Moran's I Test Tonglin Zhang and Ge@wvu.edu 0 #12;Identification of Local Clusters for Count Data: A Model-Based Moran's I Test Abstract We set
Plunkett, Count George Noble by D. R. O'Connor Lysaght
Plunkett, Count George Noble by D. R. O'Connor Lysaght Plunkett, Count George Noble (1851 to the nursing order of the Little Company of Mary (Blue Sisters), and on 4 April 1884 Pope Leo XIII made him's republic rather than to the `king, lords and commons' of Arthur Griffith (qv). Plunkett and Griffith became
TTDTTi'^'/O^ Riso-R-490 Total-Count Calibration Blocks
I et · ·Ji 2 TTDTTi'^'/O^ Riso-R-490 Total-Count Calibration Blocks for Use in Uranium Exploration-COUNT CALIBRATION BLOCKS FOR USE IN URANIUM EXPLORATION L. Løvborg Abstract. Transportable calibration blocks; CALIBRATION? CALIBRATION STANDARDS? CONCRETES; EXPLORATION; SCINTILLATION COUNTERS; URANIUM UDC 539
WHERE ARE THE ELECTRIC VEHICLES?1 A SPATIAL MODEL FOR VEHICLE-CHOICE COUNT DATA2
Kockelman, Kara M.
1 WHERE ARE THE ELECTRIC VEHICLES?1 A SPATIAL MODEL FOR VEHICLE-CHOICE COUNT DATA2 3 T. Donna Chen4 ABSTRACT29 30 Electric vehicles (EVs) are predicted to increase in market share as auto manufacturers: Electric vehicles, spatial count modeling, vehicle choice, vehicle ownership,1 consumer behavior
Multi-commodity flow estimation with partial counts on selected links
Kang, Dong Hun
2007-04-25T23:59:59.000Z
of highway links. Due to the restriction of time and cost, traffic counts are not always observed for every highway link. Typically, about 50% of the links have traffic counts in urban highway networks. Also, it should be noted that the observed traffic...
Robust Estimation and Outlier Detection for Overdispersed Multinomial Models of Count Data
Sekhon, Jasjeet S.
Robust Estimation and Outlier Detection for Overdispersed Multinomial Models of Count Data Walter R research on labor rela- tions (Card 1990), the relationship between patents and R&D (Hausman, Hall counts in political science includes studies of child care services (Bratton and Ray 2002), gender
U. S. rig count drops below 600, a post-1940 low
Not Available
1992-06-22T23:59:59.000Z
This paper reports that the Baker Hughes Inc. count of active U.S. rotary rigs as of June 12 fell to less than 600 the first time since that tally began in 1940. The previous modern record low was set at 610 the previous week. Baker Hughes reported about 1,400 rigs idle in the U.S. last week. Using a different criteria, the Smith International count of U.S. active rigs fell seven units to 653 the week ended June 12, compared with a count of 910 the previous year. Baker Hughes predecessor Hughes Tool Co. began keeping monthly records of active U.S. rigs in January 1940. The lowest monthly count that year was 857. It changed to a weekly count in January 1949. The milestone was met wit calls for relief for the U.S. upstream sector from industry and government officials in Washington.
Dark counts of superconducting nanowire single-photon detector under illumination
Chen, Sijing; Zhang, Weijun; Yang, Xiaoyan; Li, Hao; Zhang, Lu; Wang, Zhen; Xie, Xiaoming
2015-01-01T23:59:59.000Z
An abnormal increase in the SDE was observed for superconducting nanowire single-photon detectors (SNSPDs) when the bias current (Ib) was close to the switching current (Isw). By introducing the time-correlated single-photon counting technique, we investigated the temporal histogram of the detection counts of an SNSPD under illumination. The temporal information helps us to distinguish photon counts from dark counts in the time domain. In this manner, the dark count rate (DCR) under illumination and the accurate SDE can be determined. The DCR under moderate illumination may be significantly larger than the conventional DCR measured without illumination under a high Ib, which causes the abnormal increase in the SDE. The increased DCR may be explained by the suppression of Isw under illumination.
Generalized Jordan-Wigner Transformations
Batista, C. D.; Ortiz, G.
2001-02-05T23:59:59.000Z
We introduce a new spin-fermion mapping, for arbitrary spin S generating the SU(2) group algebra, that constitutes a natural generalization of the Jordan-Wigner transformation for S=1/2. The mapping, valid for regular lattices in any spatial dimension d , serves to unravel hidden symmetries. We illustrate the power of the transformation by finding exact solutions to lattice models previously unsolved by standard techniques. We also show the existence of the Haldane gap in S=1 bilinear nearest-neighbor Heisenberg spin chains and discuss the relevance of the mapping to models of strongly correlated electrons. Moreover, we present a general spin-anyon mapping for the case d{<=}2 .
Generalized Jordan-Wigner Transformations
C. D. Batista; G. Ortiz
2000-08-25T23:59:59.000Z
We introduce a new spin-fermion mapping, for arbitrary spin $S$ generating the SU(2) group algebra, that constitutes a natural generalization of the Jordan-Wigner transformation for $S=1/2$. The mapping, valid for regular lattices in any spatial dimension $d$, serves to unravel hidden symmetries in one representation that are manifest in the other. We illustrate the power of the transformation by finding exact solutions to lattice models previously unsolved by standard techniques. We also present a proof of the existence of the Haldane gap in $S=$1 bilinear nearest-neighbors Heisenberg spin chains and discuss the relevance of the mapping to models of strongly correlated electrons. Moreover, we present a general spin-anyon mapping for the case $d \\leq 2$.
Ultrafast Transformations in Superionic Nanocrystals
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (MillionStructural Basis of5, 2014 | ReleaseUNCLASSI H EUltrafast Transformations in
Ultrafast Transformations in Superionic Nanocrystals
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (MillionStructural Basis of5, 2014 | ReleaseUNCLASSI H EUltrafast Transformations
Transform Solar | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onsource History View New PagessourceRavenandEconomiesEnergyTitle 29Trace Element AnalysisTransform Solar Jump to:
Nonlinear transform coding with lossless polar coordinates
Ba, Demba Elimane
2006-01-01T23:59:59.000Z
In conventional transform coding, the importance of preserving desirable quantization partition cell shapes prevents one from considering the use of a nonlinear change of variables. If no linear transformation of a given ...
Counter urban transformation in Istanbul Beyoglu
Uzunyayla, Sakine Dicle
2014-01-01T23:59:59.000Z
Urban transformation has become central to the Turkish government's neo-liberal program of commercial development for Istanbul. These transformations have provoked public discontent and passionate responses, the largest ...
Transforms for prediction residuals in video coding
Kam??l?, Fatih
2010-01-01T23:59:59.000Z
Typically the same transform, the 2-D Discrete Cosine Transform (DCT), is used to compress both image intensities in image coding and prediction residuals in video coding. Major prediction residuals include the motion ...
Conformal Gauge Transformations in Thermodynamics
A. Bravetti; C. S. Lopez-Monsalvo; F. Nettel
2015-06-23T23:59:59.000Z
In this work we consider conformal gauge transformations of the geometric structure of thermodynamic fluctuation theory. In particular, we show that the Thermodynamic Phase Space is naturally endowed with a non-integrable connection, defined by all those processes that annihilate the Gibbs 1-form, i.e. reversible processes. Therefore the geometry of reversible processes is invariant under re-scalings, that is, it has a conformal gauge freedom. Interestingly, as a consequence of the non-integrability of the connection, its curvature is not invariant under conformal gauge transformations and, therefore, neither is the associated pseudo-Riemannian geometry. We argue that this is not surprising, since these two objects are associated with irreversible processes. Moreover, we provide the explicit form in which all the elements of the geometric structure of the Thermodynamic Phase Space change under a conformal gauge transformation. As an example, we revisit the change of the thermodynamic representation and consider the resulting change between the two metrics on the Thermodynamic Phase Space which induce Weinhold's energy metric and Ruppeiner's entropy metric. As a by-product we obtain a proof of the well-known conformal relation between Weinhold's and Ruppeiner's metrics along the equilibrium directions. Finally, we find interesting properties of the almost para-contact structure and of its eigenvectors which may be of physical interest.
Tunable fractional-order Fourier transformer
Malyutin, A A [A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
2006-01-31T23:59:59.000Z
A fractional two-dimensional Fourier transformer whose orders are tuned by means of optical quadrupoles is described. It is shown that in the optical scheme considered, the Fourier-transform order a element of [0,1] in one of the mutually orthogonal planes corresponds to the transform order (2-a) in another plane, i.e., to inversion and inverse Fourier transform of the order a. (laser modes and beams)
Energy conservation, counting statistics, and return to equilibrium
Vojkan Jaksic; Jane Panangaden; Annalisa Panati; Claude-Alain Pillet
2014-09-30T23:59:59.000Z
We study a microscopic Hamiltonian model describing an N-level quantum system S coupled to an infinitely extended thermal reservoir R. Initially, the system S is in an arbitrary state while the reservoir is in thermal equilibrium at temperature T. Assuming that the coupled system S+R is mixing with respect to the joint thermal equilibrium state, we study the Full Counting Statistics (FCS) of the energy transfers S->R and R->S in the process of return to equilibrium. The first FCS describes the increase of the energy of the system S. It is an atomic probability measure, denoted $P_{S,\\lambda,t}$, concentrated on the set of energy differences $\\sigma(H_S)-\\sigma(H_S)$ ($\\sigma(H_S)$ is the spectrum of the Hamiltonian of S, $t$ is the length of the time interval during which the measurement of the energy transfer is performed, and $\\lambda$ is the strength of the interaction between S and R). The second FCS, $P_{R,\\lambda,t}$, describes the decrease of the energy of the reservoir R and is typically a continuous probability measure whose support is the whole real line. We study the large time limit $t\\rightarrow\\infty$ of these two measures followed by the weak coupling limit $\\lambda\\rightarrow 0$ and prove that the limiting measures coincide. This result strengthens the first law of thermodynamics for open quantum systems. The proofs are based on modular theory of operator algebras and on a representation of $P_{R,\\lambda,t}$ by quantum transfer operators.
A programmable Fresnel transform pulse shaper
Purdue University
A programmable Fresnel transform pulse shaper G. M´inguez-Vega1, J.D. McKinney2 and A.M. Weiner2 1@purdue.edu Abstract: We demonstrate the first reprogrammable Fresnel transform pulse shaper based on a modified direct a free-space Fresnel transform which causes quadratic dispersion of the output temporal waveform. When
The TRANSFORMATION OF CONFLICTS AMONG ETHIOPIAN PASTORALISTS
Richner, Heinz
The TRANSFORMATION OF CONFLICTS AMONG ETHIOPIAN PASTORALISTS: Ethnography of the Notion of Conflict This PhD thesis is concerned with studying the conceptualization, performance and transformation in their nature and have not yet achieved full transformation to peace. The research supports the notion
Ribaucour transformations revisited Armando V. Corro
Tenenblat, Keti
Ribaucour transformations revisited Armando V. Corro Keti Tenenblat Abstract We present a revised definition of a Ribaucour transformation for submanifolds of space forms, with flat normal bundle, motivated- cise treatment of the geometric aspect of such transformations preserving lines of curvature and it can
YANGMILLS THEORY AND THE SEGALBARGMANN TRANSFORM
YANGMILLS THEORY AND THE SEGALBARGMANN TRANSFORM BRIAN C. HALL Abstract. Motivated by the results cylinder, with the goal of obtaining an appropriate SegalBargmann transform. Using a Gaussian mea sure a variant of the classical SegalBargmann transform. A simple but nonrigorous argument shows
LAPPED TRANSFORMS Ricardo L. de Queiroz
de Queiroz, Ricardo L.
LAPPED TRANSFORMS Ricardo L. de Queiroz Advanced Color Imaging Xerox Corporation queiroz@wrc.xerox.com 0.1 Introduction The idea of a lapped transform (LT, for short) maintaining orthogonality and non with the blocking artifacts so common in traditional block transform coding of images. The idea was to extend
Transforming and Refining Abstract Constraint Specifications
Walsh, Toby
Transforming and Refining Abstract Constraint Specifications Alan M. Frisch1 , Brahim Hnich2 , Ian choose model transformations to reduce greatly the amount of effort that is required to solve a problem by systematic search. It is a consid- erable challenge to automate such transformations. A problem may be viewed
AALBORGUNIVERSITY DEPARTMENTOFENERGY TECHNOLOGY Transformer in series
Silva, Filipe Faria Da
AALBORGUNIVERSITY DEPARTMENTOFENERGY TECHNOLOGY Transformer in series Filipe Miguel Faria Da that corresponds to a neighbour transformer. Both loads are 3-phase loads, which can be unbalanced to generated. The harmonics are generated inside the farm, thus, the current source is grounded at the transformer's neutral
Simulation of Top Oil Temperature for Transformers
Simulation of Top Oil Temperature for Transformers Masters Thesis and Final Project Report Power-Oil Temperature for Transformers Thesis and Final Report Yong Liang PSERC Publication 01-21 February 2001 #12 for the PSERC project "On-Line Peak Loading of Substation Distribution Transformers Through Accurate Temperature
Transformation texture of allotriomorphic ferrite in steel
Cambridge, University of
Transformation texture of allotriomorphic ferrite in steel D. W. Kim1 , R. S. Qin1 and H. K. D. H. Bhadeshia*1,2 Many aspects of the crystallographic texture which develops when austenite transforms into martensite or bainite are well established because the process by which the parent lattice is transformed
LAPPED TRANSFORMS Ricardo L. de Queiroz
de Queiroz, Ricardo L.
LAPPED TRANSFORMS Ricardo L. de Queiroz Digital Imaging Technology Center Xerox Corporation queiroz transforms. It is a subject that has been extensively studied making available a large number of papers and books. This is mostly true because of the direct correspondence among lapped transforms, lter banks
A Computational Theory of Enterprise Transformation
Serban, Nicoleta
approach to enterprise transformation was to turn IBM into a market- driven rather than internally focusedA Computational Theory of Enterprise Transformation Zhongyuan Yu, William B. Rouse,* and Nicoleta THEORY OF ENTERPRISE TRANSFORMATION Received 13 August 2010; Revised 20 December 2010; Accepted 20
Quantum arithmetic with the Quantum Fourier Transform
Lidia Ruiz-Perez; Juan Carlos Garcia-Escartin
2014-11-21T23:59:59.000Z
The Quantum Fourier Transform offers an interesting way to perform arithmetic operations on a quantum computer. We review existing Quantum Fourier Transform adders and multipliers and propose some modifications that extend their capabilities. Among the new circuits, we propose a quantum method to compute the weighted average of a series of inputs in the transform domain.
Birefringent Fourier-transform imaging spectrometer
Harvey, Andy
Birefringent Fourier-transform imaging spectrometer Andrew Robert Harvey and David William Fletcher.r.Harvey@hw.ac.uk http://www.ece.eps.hw.ac.uk/~arharvey Abstract: Fourier-transform imaging spectrometers offer important, for application in harsh environments, deployment of Fourier-transform instruments based on traditional moving
The Fourier Transform -A Primer Hagit Shatkay
Learned, John
The Fourier Transform - A Primer Hagit Shatkay Department of Computer Science Brown University Providence, Rhode Island 02912 CS-95-37 November 1995 #12;#12;The Fourier Transform { A Primer Hagit Shatkay Department of Computer Science Brown University Providence, RI 02912 1 Introduction The Fourier transform
Lecture 2: Fourier transforms and frequency response
Fan, Xingzhe
Lecture 2: Fourier transforms and frequency response Course at a glance Discrete-time signals and systems Fourier-domain representation DFT/FFT System structures Filter structures Filter design Filter z-transform Sampling and reconstruction System analysis System Fourier transforms and frequency response Frequency
Fourier transform channeled spectropolarimetry in the MWIR
Dereniak, Eustace L.
Fourier transform channeled spectropolarimetry in the MWIR Michael W. Kudenov,1 Nathan A. Hagen, 1 Abstract: A complete Fourier Transform Spectropolarimeter in the MWIR is demonstrated. The channeled and links 1. P. Griffiths and J. D. Haseth, "Fourier Transform Infrared Spectrometry," (John Wiley & Sons
On Lorentz Transformations in Symplectic Deformations
Cuesta, R.; Sabido, M. [Departamento de Fisica, DCI-Campus Leon, Universidad de Guanajuato, A.P. E-143, C.P. 37150, Guanajuato (Mexico); Guzman, W. [Instituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, 21945-970, Rio de Janeiro (Brazil)
2010-07-12T23:59:59.000Z
In this paper we study noncommutative Lorentz transformations using symplectic deformations. In this framework we define an infinitesimal line element that is invariant under this noncommutative Lorentz transformations. Using the symplectic geometry formalism, we find that noncommutative Lorentz transformations intertwine the canonical momentums with canonical position coordinates.
Inversion of the attenuated Radon transform
MÃ¼nster, WestfÃ¤lische Wilhelms-UniversitÃ¤t
Inversion of the attenuated Radon transform F. Natterer Institut fur Numerische und instrumentelle@math.uni-muenster.de Abstract We derive an exact inversion formula for the attenuated Radon transform. The formula is closely for x 2 IR2, #12; 2 S1 Dax; #12; = 1Z 0 ax + t#12;dt : 1.1 The attenuated Radon transform Ra is de ned
Nonlinear Radon and Fourier Transforms Franois Rouvire
Vallette, Bruno
Nonlinear Radon and Fourier Transforms François Rouvière Université de Nice Laboratoire Dieudonné, of the clas- sical Radon transform on hyperplanes. A function f on Rn can be reconstructed from nonlinear Radon transforms, obtained by integrating f and a ...nite num- ber of multiples x f over a family
Injectivity of Rotation Invariant Windowed Radon Transforms
Biermé, Hermine
Injectivity of Rotation Invariant Windowed Radon Transforms Hermine Bierm´e MAPMO-UMR 6628, D rotation invariant windowed Radon transforms that integrate a func- tion over hyperplanes by using a radial with positive real part , the windowed Radon transform is not injective on functions with a Gaussian decay
Multilinear generalized Radon transforms and point configurations
Grafakos, Loukas
Multilinear generalized Radon transforms and point configurations Loukas Grafakos, Allan Greenleaf, Alex Iosevich and Eyvindur Palsson Abstract. We study multilinear generalized Radon transforms using for the results in [7]. 1. Introduction Linear generalized Radon transforms are operators of the form (1.1) Rf
WAVELET TRANSFORMATIONS AS DIVERSITY ENHANCERS 1
West, Mike
WAVELET TRANSFORMATIONS AS DIVERSITY ENHANCERS 1 By Prem Goel Ohio State University and Duke University and Brani Vidakovic Duke University Discrete wavelet transformations have became indispensable of wavelet transformations and propose novel thresholding and wavelet selection methods. This is achieved via
Interpolating Wavelet Transforms David L. Donoho
Donoho, David
Interpolating Wavelet Transforms David L. Donoho Department of Statistics Stanford University October, 1992 Abstract We describe several \\wavelet transforms" which characterize smoothness spaces-interpret the empirical wavelet transform, i.e. the common practice of applying pyramid #12;lters to samples of a function
Data-centric Transformations for Locality Enhancement
Pingali, Keshav K.
-centric transformations for locality enhancement. We present experimental results on the SGI Octane compar- ingData-centric Transformations for Locality Enhancement Induprakas Kodukula Keshav Pingali September community has developed locality-enhancing program transformations such as loop permutation and tiling
S. C. Ellis; J. Bland-Hawthorn
2007-03-06T23:59:59.000Z
We provide a consistent framework for estimating galaxy counts and variances in wide-field images for a range of photometric bands. The variances include both Poissonian noise and variations due to large scale structure. We demonstrate that our statistical theory is consistent with the counts in the deepest multiband surveys available. The statistical estimates depend on several observational parameters (e.g. seeing, signal to noise ratio), and include a sophisticated treatment of detection completeness. The JAVA calculator is freely available and offers the user the option to adopt our consistent framework or a different scheme. We also provide a summary table of statistical measures in the different bands for a range of different fields of view. Reliable estimation of the background counts has profound consequences in many areas of observational astronomy. We provide two such examples. One is from a recent study of the Sculptor galaxy NGC 300 where stellar photometry has been used to demonstrate that the outer disc extends to 10 effective radii, far beyond what was thought possible for a normal low-luminosity spiral. We confirm this finding by a reanalysis of the background counts. Secondly, we determine the luminosity function of the galaxy cluster Abell 2734, both through spectroscopically determined cluster membership, and through statistical subtraction of the background galaxies using the calculator and offset fields. We demonstrate very good agreement, suggesting that expensive spectroscopic follow-up, or off-source observations, may often be bypassed via determination of the galaxy background with GalaxyCount.
A Superconducting transformer system for high current cable testing
Godeke, A.
2010-01-01T23:59:59.000Z
A Superconducting Transformer System for High Current CableDC) superconducting transformer system for the high currentsuperconducting cables. The transformer consists of a core-
Cauchy transforms of measures viewed as some functionals of Fourier transforms #
Jurek, Zbigniew J.
Cauchy transforms of measures viewed as some functionals of Fourier transforms # Zbigniew J. Jurek Urbanik ABSTRACT. The Cauchy transform of a positive measure plays an impor tant role in complex analysis and more recently in socalled free probability. We show here that the Cauchy transform restricted
Cauchy transforms of measures viewed as some functionals of Fourier transforms
Jurek, Zbigniew J.
Cauchy transforms of measures viewed as some functionals of Fourier transforms Zbigniew J. Jurek Urbanik ABSTRACT. The Cauchy transform of a positive measure plays an impor- tant role in complex analysis and more recently in so-called free probability. We show here that the Cauchy transform restricted
Paris-Sud XI, Université de
Learning transformation rules from transformation examples: An approach based on Relational Concept), model transformations are basic and primordial entities, thus easing their design and implementation is an important issue. A quite recently proposed way to create model transformations consists in deducing
Computing Instantaneous Frequency by normalizing Hilbert Transform
Huang, Norden E.
2005-05-31T23:59:59.000Z
This invention presents Normalized Amplitude Hilbert Transform (NAHT) and Normalized Hilbert Transform(NHT), both of which are new methods for computing Instantaneous Frequency. This method is designed specifically to circumvent the limitation set by the Bedorsian and Nuttal Theorems, and to provide a sharp local measure of error when the quadrature and the Hilbert Transform do not agree. Motivation for this method is that straightforward application of the Hilbert Transform followed by taking the derivative of the phase-angle as the Instantaneous Frequency (IF) leads to a common mistake made up to this date. In order to make the Hilbert Transform method work, the data has to obey certain restrictions.
Preventive overhaul time for power transformers
Sarmadi, M. [Pennsylvania State Univ., University Park, PA (United States). Electrical Engineering Dept.; Rouhi, J. [Univ. of Mazandaran (Iran, Islamic Republic of); Fayyaz, A. [Mazandaran Power Co. (Iran, Islamic Republic of)
1999-11-01T23:59:59.000Z
Power transformers are the major piece of equipment in high-voltage substations. A considerable number of these transformers exist in Iran`s integrated network. Due to the climate diversity and improper usage, many of these transformers age rapidly, suffer failure and are taken out of service before half their useful life. At the present time the utility companies have no specific time-frame and plan for preventive overhaul. Detection of preventive overhaul time will increase the remaining life of transformers and improve the reliability of substations. An exact check of the remaining lifetime of transformers is not yet possible by available diagnostic techniques. In this paper, the authors present a method of identifying the right time for preventive overhaul in 63 kV power transformers. This method is developed based on 25 year transformer performance records in Northern Iran (subtropical climate) and with the utilization of studies done by electrical engineering communities world-wide.
Ultrafast Transformations in Superionic Nanocrystals
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (MillionStructural Basis of5, 2014 | ReleaseUNCLASSI H EUltrafast Transformations in Superionic
Ultrafast Transformations in Superionic Nanocrystals
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (MillionStructural Basis of5, 2014 | ReleaseUNCLASSI H EUltrafast Transformations inUltrafast
High flux solar energy transformation
Winston, Roland (Chicago, IL); Gleckman, Philip L. (Chicago, IL); O'Gallagher, Joseph J. (Flossmoor, IL)
1991-04-09T23:59:59.000Z
Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes.
High flux solar energy transformation
Winston, R.; Gleckman, P.L.; O'Gallagher, J.J.
1991-04-09T23:59:59.000Z
Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes. 7 figures.
Transformational Manufacturing | Argonne National Laboratory
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA Journey InsideMicroBooNE LArTPC Sarah Lockwitz, FNAL 2013OctoberTopoTransForum DataTransformational
Ultrafast Transformations in Superionic Nanocrystals
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA Journey InsideMicroBooNE LArTPC SarahArea: U.S. Lowertoroidal fieldUltrafast Transformations in
Ultrafast Transformations in Superionic Nanocrystals
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA Journey InsideMicroBooNE LArTPC SarahArea: U.S. Lowertoroidal fieldUltrafast Transformations
Sutherland, H.J.; Schluter, L.L.
1990-01-01T23:59:59.000Z
A rainflow counting algorithm'' has been incorporated into the LIFE2 fatigue/fracture analysis code for wind turbines. The count algorithm, with its associated pre- and post-count algorithms, permits the code to incorporate time-series data into its analysis scheme. After a description of the algorithms used here, their use is illustrated by the examination of stress-time histories from the Sandia 34-m Test Bed vertical axis wind turbine. The results of the rainflow analysis are compared and contrasted to previously reported predictions for the service lifetime of the fatigue critical component for this turbine. 14 refs., 8 figs., 3 tabs.
Whitehead, D. [Sandia National Labs., Albuquerque, NM (United States); Darby, J. [Science and Engineering Associates, Inc., Albuquerque, NM (United States); Yakle, J. [Science Applications International Corp., Albuquerque, NM (United States)] [and others
1994-06-01T23:59:59.000Z
This document contains the accident sequence analysis of internally initiated events for Grand Gulf, Unit 1 as it operates in the Low Power and Shutdown Plant Operational State 5 during a refueling outage. The report documents the methodology used during the analysis, describes the results from the application of the methodology, and compares the results with the results from two full power analyses performed on Grand Gulf.
Harrison, K G; Holt, P D; Wylie, J W
1977-01-01T23:59:59.000Z
The spark counting of etched fission-fragment tracks in polycarbonate for a personal neutron dosimetry system
American Society for Testing and Materials. Philadelphia
2010-01-01T23:59:59.000Z
Standard test method for nondestructive assay of plutonium in scrap and waste by passive neutron coincidence counting
Uranium transformations in static microcosms.
Kelly, S. D.; Wu, W.; Yang, F.; Criddle, C.; Marsh, T. L.; O'Loughlin, E. J.; Ravel, B.; Watson, D.; Jardine, P. M.; Kemner, K. M.; Stanford Univ.; Michigan State Univ.; ORNL; BNL; EXAFS Analysis
2010-01-01T23:59:59.000Z
Elucidation of complex biogeochemical processes and their effects on speciation of U in the subsurface is critical for developing remediation strategies with an understanding of stability. We have developed static microcosms that are similar to bioreduction process studies in situ under laminar flow conditions or in sediment pores. Uranium L{sub 3}-edge X-ray absorption near-edge spectroscopy analysis with depth in the microcosms indicated that transformation of U{sup VI} to U{sup IV} occurred by at least two distinct processes. Extended X-ray absorption fine structure (EXAFS) analysis indicated that initial U{sup VI} species associated with C- and P-containing ligands were transformed to U{sup IV} in the form of uraninite and U associated with Fe-bound ligands. Microbial community analysis identified putative Fe{sup III} and sulfate reducers at two different depths in the microcosms. The slow reduction of U{sup VI} to U{sup IV} may contribute the stability of U{sup IV} within microcosms at 11 months after a decrease in bioreducing conditions due to limited electron donors.
A DIRECT-DEMAND MODEL FOR BICYCLE COUNTS:1 THE IMPACTS OF LEVEL OF SERVICE AND OTHER FACTORS2
Kockelman, Kara M.
1 A DIRECT-DEMAND MODEL FOR BICYCLE COUNTS:1 THE IMPACTS OF LEVEL OF SERVICE AND OTHER FACTORS2 3 Keywords: Transportation Planning, Bicycle, Cycling, Bike Lanes, Traffic Counts, Level of23 Service24 25 alone. Unfortunately, most municipalities do not conduct31 comprehensive bicycle counts to determine
A Transformational View of Cartography W. R. Tobler
Clarke, Keith
A Transformational View of Cartography W. R. Tobler ABSTRACT. Cartographic transformations aliases are between points, lines, and areas. Substantive transformations occur in map interpolation transformational grammars, as originally devised for linguistics.2, 4 A similar, though less ambitious, attempt
Transformation induced plasticity assisted steels: stress or strain affected martensitic
Cambridge, University of
Transformation induced plasticity assisted steels: stress or strain affected martensitic transformation? S. Chatterjee and H. K. D. H. Bhadeshia* Transformation induced plasticity (TRIP) assisted steels contain a small quantity of carbon enriched retained austenite, which transforms into martensite during
LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR D-MODULES
Bloch, Spencer
LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR D. Local Fourier transforms, analogous to the `-adic local Fourier transforms [14], are constructed infinitesimal rigidity condition is satisfied. As in [12], the argument uses local Fourier transforms
Packaging and qualification of single photon counting avalanche photodiode focal plane arrays
Verghese, Simon
Avalanche Photodiode (APD) photon counting arrays are finding an increasing role in defense applications in laser radar and optical communications. As these system concepts mature, the need for reliable screening, test, ...
Photon-counting optical coherence-domain reflectometry using superconducting single-
Teich, Malvin C.
Photon-counting optical coherence-domain reflectometry using superconducting single- photon reflecting samples. In particular, we experimentally demonstrate the possibility of using superconducting. Drakinsky, J. Zhang, A. Verevkin, and R. Sobolewski, "Fabrication of nanostructured superconducting single
A High Count Rate Neutron Beam Monitor for Neutron Scattering Facilities
Barnett, Amanda [University of Tennessee, Knoxville (UTK); Crow, Lowell [ORNL; Diawara, Yacouba [ORNL; Hayward, J P [University of Tennessee, Knoxville (UTK); Hayward, Jason P [ORNL; Menhard, Kocsis [European Synchrotron Radiation Facility (ESRF); Sedov, Vladislav N [ORNL; Funk, Loren L [ORNL
2013-01-01T23:59:59.000Z
Abstract Beam monitors are an important diagnostic tool in neutron science facilities. Present beam monitors use either ionization chambers in integration mode, which are slow and have no timing information, or pulse counters which can easily be saturated by high beam intensities. At high flux neutron scattering facilities, neutron beam monitors with very low intrinsic efficiency (10-5) are presently selected to keep the counting rate within a feasible range, even when a higher efficiency would improve the counting statistics and yield a better measurement of the incident beam. In this work, we report on a high count rate neutron beam monitor. This beam monitor offers good timing with an intrinsic efficiency of 10-3 and a counting rate capability of over 1,000,000 cps without saturation.