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


1

T-609: Adobe Acrobat/Reader Memory Corruption Error in CoolType...  

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

09: Adobe AcrobatReader Memory Corruption Error in CoolType Library Lets Remote Users Execute Arbitrary Code T-609: Adobe AcrobatReader Memory Corruption Error in CoolType...

2

T-609: Adobe Acrobat/Reader Memory Corruption Error in CoolType Library Lets Remote Users Execute Arbitrary Code  

Broader source: Energy.gov [DOE]

A remote user can create a specially crafted PDF file that, when loaded by the target user, will trigger a memory corruption error in the CoolType library and execute arbitrary code on the target system. The code will run with the privileges of the target user.

3

T-716: Google SketchUp v8.x - '.DAE' File Memory Corruption Vulnerabil...  

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

6: Google SketchUp v8.x - '.DAE' File Memory Corruption Vulnerability T-716: Google SketchUp v8.x - '.DAE' File Memory Corruption Vulnerability September 14, 2011 - 9:28am Addthis...

4

Evaluating operating system vulnerability to memory errors.  

SciTech Connect (OSTI)

Reliability is of great concern to the scalability of extreme-scale systems. Of particular concern are soft errors in main memory, which are a leading cause of failures on current systems and are predicted to be the leading cause on future systems. While great effort has gone into designing algorithms and applications that can continue to make progress in the presence of these errors without restarting, the most critical software running on a node, the operating system (OS), is currently left relatively unprotected. OS resiliency is of particular importance because, though this software typically represents a small footprint of a compute node's physical memory, recent studies show more memory errors in this region of memory than the remainder of the system. In this paper, we investigate the soft error vulnerability of two operating systems used in current and future high-performance computing systems: Kitten, the lightweight kernel developed at Sandia National Laboratories, and CLE, a high-performance Linux-based operating system developed by Cray. For each of these platforms, we outline major structures and subsystems that are vulnerable to soft errors and describe methods that could be used to reconstruct damaged state. Our results show the Kitten lightweight operating system may be an easier target to harden against memory errors due to its smaller memory footprint, largely deterministic state, and simpler system structure.

Ferreira, Kurt Brian; Bridges, Patrick G. (University of New Mexico); Pedretti, Kevin Thomas Tauke; Mueller, Frank (North Carolina State University); Fiala, David (North Carolina State University); Brightwell, Ronald Brian

2012-05-01T23:59:59.000Z

5

Quantum Error Correction for Quantum Memories  

E-Print Network [OSTI]

Active quantum error correction using qubit stabilizer codes has emerged as a promising, but experimentally challenging, engineering program for building a universal quantum computer. In this review we consider the formalism of qubit stabilizer and subsystem stabilizer codes and their possible use in protecting quantum information in a quantum memory. We review the theory of fault-tolerance and quantum error-correction, discuss examples of various codes and code constructions, the general quantum error correction conditions, the noise threshold, the special role played by Clifford gates and the route towards fault-tolerant universal quantum computation. The second part of the review is focused on providing an overview of quantum error correction using two-dimensional (topological) codes, in particular the surface code architecture. We discuss the complexity of decoding and the notion of passive or self-correcting quantum memories. The review does not focus on a particular technology but discusses topics that will be relevant for various quantum technologies.

Barbara M. Terhal

2015-01-20T23:59:59.000Z

6

Characterizing Application Memory Error Vulnerability to Optimize Datacenter Cost via Heterogeneous-Reliability Memory  

E-Print Network [OSTI]

Characterizing Application Memory Error Vulnerability to Optimize Datacenter Cost via Heterogeneous--Memory devices represent a key component of datacenter total cost of ownership (TCO), and techniques used, we make three main con- tributions to enable highly-reliable servers at low datacenter cost. First

Mutlu, Onur

7

V-228: RealPlayer Buffer Overflow and Memory Corruption Error Let Remote  

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),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV > 111 \il :^ a.7 V

8

Secure Memories Resistant to Both Random Errors and Fault Injection Attacks Using Nonlinear Error Correction Codes  

E-Print Network [OSTI]

University, Boston , USA shizunge@bu.edu, wang.zhen.mtk@gmail.com, luopei@bu.edu, markkar@bu.edu Abstract and internal memories in em- bedded systems. Non-volatile memories like EEPROM and Flashes are often used author now works for Mediatek Wireless, Inc. The work of the fourth author is sponsored by the NSF grant

9

Corruption in Developing Countries  

E-Print Network [OSTI]

Recent years have seen a remarkable expansion in economists' ability to measure corruption. This in turn has led to a new generation of well-identified, microeconomic studies. We review the evidence on corruption in ...

Olken, Benjamin A.

10

Corruption in Uganda  

E-Print Network [OSTI]

of corruption in Uganda? Causes and Consequences ofto January 24, 1986, Uganda has lacked exemplary leadership.the Central Bank (Bank of Uganda). If salary and wage rises

Nsibambi, Apolo

1987-01-01T23:59:59.000Z

11

Corruption, Institutions and Economic Development  

E-Print Network [OSTI]

and in developing the underlying theory (Dasgupta, 2001, chapter 9; Hamilton and Clemens, 1999). Loosely speaking, sustainable development is related to an economy?s ability to maintain living standards through time. More precisely, Arrow et al. (2004) suggest... capita ?a direct measure of sustainable development ?and corruption. While corruption may have little average e¤ect on the growth rate of GDP per capita, it is a likely source of unsustainable development. Key words: Corruption, Growth, Sustainable...

Aidt, Toke S

12

A Theory of the Corrupt Keynesian  

E-Print Network [OSTI]

of real business cycle shocks on corruption and economic policy in a model of entry regulation in a representative democracy.1 A leading example of the type of entry regulation that we have in mind comes from India. It takes the form of comprehensive... the impact of real business cycle shocks on corruption and economic policy in a model of entry regulation in a representative democracy. We ?nd that corruption is pro- cyclical and regulation policy is counter-cyclical. Corrupt politicians engage in excessive...

Aidt, Toke S; Dutta, J

13

ROBERT MCNAB AND KATHLEEN BAILEY MANUSCRIPT 2: DEFINING CORRUPTION  

E-Print Network [OSTI]

to be a corrupt action, given the individual saw no explicit private benefit? From Nye's perspective, 1964). The literature commonly defines corruption as, "the abuse of public power for private benefit: "the use of public office for private gain."3 From this perspective, corruption is connected explicitly

14

CORRUPTION AND ILLEGAL LOGGING IN THE WOOD  

E-Print Network [OSTI]

CORRUPTION AND ILLEGAL LOGGING IN THE WOOD PRODUCTS MARKET: the Italian experience in controlling Science 7 May 2004 Paper organization 1. State of the problem 2. Are Italian companies involved in deforestation and trade of illegal logging? 3. Which are the most affected countries? 4. Why do we need

Pettenella, Davide

15

T-622: Adobe Acrobat and Reader Unspecified Memory Corruption...  

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

versions 8.2.5 and prior Acrobat Professional Extended versions 9.4.1 and prior Acrobat 3D versions 8.2.5 and prior Adobe Flash Player versions 10.2.159.1 and prior for Windows,...

16

T-625: Opera Frameset Handling Memory Corruption Vulnerability...  

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

security and stability enhancements. Opera Download Addthis Related Articles V-164: Apple QuickTime Multiple Flaws Let Remote Users Execute Arbitrary Code V-105: Google Chrome...

17

T-569: Adobe Flash SWF File Processing Memory Corruption Remote...  

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

at the following links: Update Adobe Flash Player 10.2.152.32 Flash Player 10.2 FreeBSD Ports Collection Index Addthis Related Articles T-607: Update: Adobe Acrobat, Reader, and...

18

T-627: Adobe Flash Player Memory Corruption | Department of Energy  

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 RankCombustion |Energy Usage »of Energy Strain Rate4SuperhardSuspectEnginesSystemsForgery7:|7: Adobe

19

U-002:Adobe Photoshop Elements Multiple Memory Corruption Vulnerabilities  

Broader source: Energy.gov [DOE]

A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.

20

Limiting Political Corruption: Some Effective Remedies? Political corruption has a long history and deep roots in all levels of our government.  

E-Print Network [OSTI]

Limiting Political Corruption: Some Effective Remedies? Political corruption has a long history with less political corruption. Moreover, the effect of campaign finance disclosure exerts a bigger effect officials are much more honest than average, or our state's enforcement of political corruption statutes

Ahmad, Sajjad

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


21

Reconstruction of ECG signals in presence of corruption  

E-Print Network [OSTI]

We present an approach to identifying and reconstructing corrupted regions in a multi-parameter physiological signal. The method, which uses information in correlated signals, is specifically designed to preserve clinically ...

Ganeshapillai, Gartheeban

22

T-545: RealPlayer Heap Corruption Error in 'vidplin.dll' Lets Remote Users  

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:YearRound-Up from the GridwiseSiteDepartmentChallengeCompliance7/109 TORNADO * FLASH

23

Mechanical memory  

DOE Patents [OSTI]

A first-in-first-out (FIFO) microelectromechanical memory apparatus (also termed a mechanical memory) is disclosed. The mechanical memory utilizes a plurality of memory cells, with each memory cell having a beam which can be bowed in either of two directions of curvature to indicate two different logic states for that memory cell. The memory cells can be arranged around a wheel which operates as a clocking actuator to serially shift data from one memory cell to the next. The mechanical memory can be formed using conventional surface micromachining, and can be formed as either a nonvolatile memory or as a volatile memory.

Gilkey, Jeffrey C. (Albuquerque, NM); Duesterhaus, Michelle A. (Albuquerque, NM); Peter, Frank J. (Albuquerque, NM); Renn, Rosemarie A. (Albuquerque, NM); Baker, Michael S. (Albuquerque, NM)

2006-05-16T23:59:59.000Z

24

Mechanical memory  

DOE Patents [OSTI]

A first-in-first-out (FIFO) microelectromechanical memory apparatus (also termed a mechanical memory) is disclosed. The mechanical memory utilizes a plurality of memory cells, with each memory cell having a beam which can be bowed in either of two directions of curvature to indicate two different logic states for that memory cell. The memory cells can be arranged around a wheel which operates as a clocking actuator to serially shift data from one memory cell to the next. The mechanical memory can be formed using conventional surface micromachining, and can be formed as either a nonvolatile memory or as a volatile memory.

Gilkey, Jeffrey C. (Albuquerque, NM); Duesterhaus, Michelle A. (Albuquerque, NM); Peter, Frank J. (Albuquerque, NM); Renn, Rosemarie A. (Alburquerque, NM); Baker, Michael S. (Albuquerque, NM)

2006-08-15T23:59:59.000Z

25

Memory distortion: an adaptive perspective  

E-Print Network [OSTI]

concerning factors that can influence the occurrence of memory distortions, such as sleep and retrieval kinds of errors and distortions. Studies of memory distortion have a long history in both theoretical narrative that becomes our autobiography. In the process of reconstructing the past, we color and shape our

Schacter, Daniel

26

LOCAL GOVERNANCE, ANTI-CORRUPTION AND REDD+ IN LATIN AMERICA AND THE CARIBBEAN  

E-Print Network [OSTI]

LOCAL GOVERNANCE, ANTI-CORRUPTION AND REDD+ IN LATIN AMERICA AND THE CARIBBEAN: EXPLORING SYNERGIES AND THE CARIBBEAN: EXPLORING SYNERGIES TO STRENGTHEN TRANSPARENCY AND ACCOUNTABILITY 2 #12;LOCAL GOVERNANCE, ANTI-CORRUPTION AND REDD+ IN LATIN AMERICA AND THE CARIBBEAN: EXPLORING SYNERGIES TO STRENGTHEN TRANSPARENCY

27

An Appliance-driven Approach to Detection of Corrupted Load Curve Data  

E-Print Network [OSTI]

An Appliance-driven Approach to Detection of Corrupted Load Curve Data Guoming Tang1,3 , Kui Wu1@sfu.ca, jiuyang_tang@nudt.edu.cn, jshlei@shiep.edu.cn ABSTRACT Load curve data in power systems refers to users discov- ered in the data. Load curve data, however, usually suffers from corruptions caused by various

Pei, Jian

28

U-065: Microsoft Windows win32k.sys Memory Corruption Vulnerability...  

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

web page containing an IFRAME with an overly large "height" attribute viewed using the Apple Safari browser. Successful exploitation may allow execution of arbitrary code with...

29

V-176: Adobe Flash Player Memory Corruption Flaw Lets Remote Users Execute  

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

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),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research Petroleum ReserveDepartmentScripting AttacksThere is a commandDepartment

30

On-line Self Error Detection with Equal Protection Against All Errors Mark G. Karpovsky, Konrad J. Kulikowski, Zhen Wang  

E-Print Network [OSTI]

On-line Self Error Detection with Equal Protection Against All Errors Mark G. Karpovsky, Konrad J and storage. We also present several design techniques for memories with self-error-detection based on the pro. The proposed robust codes require slightly larger overhead than standard and widely-used linear codes

Karpovsky, Mark

31

Heralded quantum gates with integrated error detection in optical cavitites  

E-Print Network [OSTI]

We propose and analyze heralded quantum gates between qubits in optical cavities. They employ an auxiliary qubit to report if a successful gate occurred. In this manner, the errors, which would have corrupted a deterministic gate, are converted into a non-unity probability of success: once successful the gate has a much higher fidelity than a similar deterministic gate. Specifically, we describe that a heralded , near-deterministic controlled phase gate (CZ-gate) with the conditional error arbitrarily close to zero and the success probability that approaches unity as the cooperativity of the system, C, becomes large. Furthermore, we describe an extension to near-deterministic N- qubit Toffoli gate with a favorable error scaling. These gates can be directly employed in quantum repeater networks to facilitate near-ideal entanglement swapping, thus greatly speeding up the entanglement distribution.

J. Borregaard; P. Kómár; E. M. Kessler; A. S. Sřrensen; M. D. Lukin

2015-01-05T23:59:59.000Z

32

Error detection method  

DOE Patents [OSTI]

An apparatus, program product, and method that run an algorithm on a hardware based processor, generate a hardware error as a result of running the algorithm, generate an algorithm output for the algorithm, compare the algorithm output to another output for the algorithm, and detect the hardware error from the comparison. The algorithm is designed to cause the hardware based processor to heat to a degree that increases the likelihood of hardware errors to manifest, and the hardware error is observable in the algorithm output. As such, electronic components may be sufficiently heated and/or sufficiently stressed to create better conditions for generating hardware errors, and the output of the algorithm may be compared at the end of the run to detect a hardware error that occurred anywhere during the run that may otherwise not be detected by traditional methodologies (e.g., due to cooling, insufficient heat and/or stress, etc.).

Olson, Eric J.

2013-06-11T23:59:59.000Z

33

A Case for Soft Error Detection and Correction in Computational Chemistry  

SciTech Connect (OSTI)

High performance computing platforms are expected to deliver 10(18) floating operations per second by the year 2022 through the deployment of millions of cores. Even if every core is highly reliable the sheer number of the them will mean that the mean time between failures will become so short that most applications runs will suffer at least one fault. In particular soft errors caused by intermittent incorrect behavior of the hardware are a concern as they lead to silent data corruption. In this paper we investigate the impact of soft errors on optimization algorithms using Hartree-Fock as a particular example. Optimization algorithms iteratively reduce the error in the initial guess to reach the intended solution. Therefore they may intuitively appear to be resilient to soft errors. Our results show that this is true for soft errors of small magnitudes but not for large errors. We suggest error detection and correction mechanisms for different classes of data structures. The results obtained with these mechanisms indicate that we can correct more than 95% of the soft errors at moderate increases in the computational cost.

van Dam, Hubertus JJ; Vishnu, Abhinav; De Jong, Wibe A.

2013-09-10T23:59:59.000Z

34

Hardware-efficient autonomous quantum error correction  

E-Print Network [OSTI]

We propose a new method to autonomously correct for errors of a logical qubit induced by energy relaxation. This scheme encodes the logical qubit as a multi-component superposition of coherent states in a harmonic oscillator, more specifically a cavity mode. The sequences of encoding, decoding and correction operations employ the non-linearity provided by a single physical qubit coupled to the cavity. We layout in detail how to implement these operations in a practical system. This proposal directly addresses the task of building a hardware-efficient and technically realizable quantum memory.

Zaki Leghtas; Gerhard Kirchmair; Brian Vlastakis; Robert Schoelkopf; Michel Devoret; Mazyar Mirrahimi

2013-01-16T23:59:59.000Z

35

Grid-scale Fluctuations and Forecast Error in Wind Power  

E-Print Network [OSTI]

The fluctuations in wind power entering an electrical grid (Irish grid) were analyzed and found to exhibit correlated fluctuations with a self-similar structure, a signature of large-scale correlations in atmospheric turbulence. The statistical structure of temporal correlations for fluctuations in generated and forecast time series was used to quantify two types of forecast error: a timescale error ($e_{\\tau}$) that quantifies the deviations between the high frequency components of the forecast and the generated time series, and a scaling error ($e_{\\zeta}$) that quantifies the degree to which the models fail to predict temporal correlations in the fluctuations of the generated power. With no $a$ $priori$ knowledge of the forecast models, we suggest a simple memory kernel that reduces both the timescale error ($e_{\\tau}$) and the scaling error ($e_{\\zeta}$).

Bel, G; Toots, M; Bandi, M M

2015-01-01T23:59:59.000Z

36

Grid-scale Fluctuations and Forecast Error in Wind Power  

E-Print Network [OSTI]

The fluctuations in wind power entering an electrical grid (Irish grid) were analyzed and found to exhibit correlated fluctuations with a self-similar structure, a signature of large-scale correlations in atmospheric turbulence. The statistical structure of temporal correlations for fluctuations in generated and forecast time series was used to quantify two types of forecast error: a timescale error ($e_{\\tau}$) that quantifies the deviations between the high frequency components of the forecast and the generated time series, and a scaling error ($e_{\\zeta}$) that quantifies the degree to which the models fail to predict temporal correlations in the fluctuations of the generated power. With no $a$ $priori$ knowledge of the forecast models, we suggest a simple memory kernel that reduces both the timescale error ($e_{\\tau}$) and the scaling error ($e_{\\zeta}$).

G. Bel; C. P. Connaughton; M. Toots; M. M. Bandi

2015-03-29T23:59:59.000Z

37

Quantum error control codes  

E-Print Network [OSTI]

QUANTUM ERROR CONTROL CODES A Dissertation by SALAH ABDELHAMID AWAD ALY AHMED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2008 Major... Subject: Computer Science QUANTUM ERROR CONTROL CODES A Dissertation by SALAH ABDELHAMID AWAD ALY AHMED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY...

Abdelhamid Awad Aly Ahmed, Sala

2008-10-10T23:59:59.000Z

38

Optical memory  

DOE Patents [OSTI]

Optical memory comprising: a semiconductor wire, a first electrode, a second electrode, a light source, a means for producing a first voltage at the first electrode, a means for producing a second voltage at the second electrode, and a means for determining the presence of an electrical voltage across the first electrode and the second electrode exceeding a predefined voltage. The first voltage, preferably less than 0 volts, different from said second voltage. The semiconductor wire is optically transparent and has a bandgap less than the energy produced by the light source. The light source is optically connected to the semiconductor wire. The first electrode and the second electrode are electrically insulated from each other and said semiconductor wire.

Mao, Samuel S; Zhang, Yanfeng

2013-07-02T23:59:59.000Z

39

Dynamic Prediction of Concurrency Errors  

E-Print Network [OSTI]

Relation 15 Must-Before Race Prediction 16 Implementation 17viii Abstract Dynamic Prediction of Concurrency Errors bySANTA CRUZ DYNAMIC PREDICTION OF CONCURRENCY ERRORS A

Sadowski, Caitlin

2012-01-01T23:59:59.000Z

40

V-035: Google Chrome Multiple Flaws Let Remote Users Execute...  

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

read may occur in Skia CVE-2012-5130. A memory corruption error may occur in the Apple OSX driver for Intel GPUs CVE-2012-5131. A browser crash may occur when processing...

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


41

EIA - Sorry! Unexpected Error  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (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),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand BarrelsNatural GasCold Fusion Error Unexpected Error Sorry!

42

Using Graphs for Fast Error Term Approximation of Time-varying Datasets  

SciTech Connect (OSTI)

We present a method for the efficient computation and storage of approximations of error tables used for error estimation of a region between different time steps in time-varying datasets. The error between two time steps is defined as the distance between the data of these time steps. Error tables are used to look up the error between different time steps of a time-varying dataset, especially when run time error computation is expensive. However, even the generation of error tables itself can be expensive. For n time steps, the exact error look-up table (which stores the error values for all pairs of time steps in a matrix) has a memory complexity and pre-processing time complexity of O(n2), and O(1) for error retrieval. Our approximate error look-up table approach uses trees, where the leaf nodes represent original time steps, and interior nodes contain an average (or best-representative) of the children nodes. The error computed on an edge of a tree describes the distance between the two nodes on that edge. Evaluating the error between two different time steps requires traversing a path between the two leaf nodes, and accumulating the errors on the traversed edges. For n time steps, this scheme has a memory complexity and pre-processing time complexity of O(nlog(n)), a significant improvement over the exact scheme; the error retrieval complexity is O(log(n)). As we do not need to calculate all possible n2 error terms, our approach is a fast way to generate the approximation.

Nuber, C; LaMar, E C; Pascucci, V; Hamann, B; Joy, K I

2003-02-27T23:59:59.000Z

43

Memory abstractions for parallel programming  

E-Print Network [OSTI]

A memory abstraction is an abstraction layer between the program execution and the memory that provides a different "view" of a memory location depending on the execution context in which the memory access is made. Properly ...

Lee, I-Ting Angelina

2012-01-01T23:59:59.000Z

44

Modular error embedding  

DOE Patents [OSTI]

A method of embedding auxiliary information into the digital representation of host data containing noise in the low-order bits. The method applies to digital data representing analog signals, for example digital images. The method reduces the error introduced by other methods that replace the low-order bits with auxiliary information. By a substantially reverse process, the embedded auxiliary data can be retrieved easily by an authorized user through use of a digital key. The modular error embedding method includes a process to permute the order in which the host data values are processed. The method doubles the amount of auxiliary information that can be added to host data values, in comparison with bit-replacement methods for high bit-rate coding. The invention preserves human perception of the meaning and content of the host data, permitting the addition of auxiliary data in the amount of 50% or greater of the original host data.

Sandford, II, Maxwell T. (Los Alamos, NM); Handel, Theodore G. (Los Alamos, NM); Ettinger, J. Mark (Los Alamos, NM)

1999-01-01T23:59:59.000Z

45

Memory-mapped transactions  

E-Print Network [OSTI]

Memory-mapped transactions combine the advantages of both memory mapping and transactions to provide a programming interface for concurrently accessing data on disk without explicit I/O or locking operations. This interface ...

Sukha, Jim

2005-01-01T23:59:59.000Z

46

Hard Data on Soft Errors: A Large-Scale Assessment of Real-World Error Rates in GPGPU  

E-Print Network [OSTI]

Graphics processing units (GPUs) are gaining widespread use in computational chemistry and other scientific simulation contexts because of their huge performance advantages relative to conventional CPUs. However, the reliability of GPUs in error-intolerant applications is largely unproven. In particular, a lack of error checking and correcting (ECC) capability in the memory subsystems of graphics cards has been cited as a hindrance to the acceptance of GPUs as high-performance coprocessors, but the impact of this design has not been previously quantified. In this article we present MemtestG80, our software for assessing memory error rates on NVIDIA G80 and GT200-architecture-based graphics cards. Furthermore, we present the results of a large-scale assessment of GPU error rate, conducted by running MemtestG80 on over 20,000 hosts on the Folding@home distributed computing network. Our control experiments on consumer-grade and dedicated-GPGPU hardware in a controlled environment found no errors. However, our su...

Haque, Imran S

2009-01-01T23:59:59.000Z

47

Approaches to Quantum Error Correction  

E-Print Network [OSTI]

The purpose of this little survey is to give a simple description of the main approaches to quantum error correction and quantum fault-tolerance. Our goal is to convey the necessary intuitions both for the problems and their solutions in this area. After characterising quantum errors we present several error-correction schemes and outline the elements of a full fledged fault-tolerant computation, which works error-free even though all of its components can be faulty. We also mention alternative approaches to error-correction, so called error-avoiding or decoherence-free schemes. Technical details and generalisations are kept to a minimum.

Julia Kempe

2006-12-21T23:59:59.000Z

48

Unequal Error Protection Turbo Codes  

E-Print Network [OSTI]

Unequal Error Protection Turbo Codes Diploma Thesis Neele von Deetzen Arbeitsbereich Nachrichtentechnik School of Engineering and Science Bremen, February 28th, 2005 #12;Unequal Error Protection Turbo Convolutional Codes / Turbo Codes 18 3.1 Structure

Henkel, Werner

49

Errors of Nonobservation  

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),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 6221,2372003of Energy for39 TableErrors of

50

Nested Quantum Error Correction Codes  

E-Print Network [OSTI]

The theory of quantum error correction was established more than a decade ago as the primary tool for fighting decoherence in quantum information processing. Although great progress has already been made in this field, limited methods are available in constructing new quantum error correction codes from old codes. Here we exhibit a simple and general method to construct new quantum error correction codes by nesting certain quantum codes together. The problem of finding long quantum error correction codes is reduced to that of searching several short length quantum codes with certain properties. Our method works for all length and all distance codes, and is quite efficient to construct optimal or near optimal codes. Two main known methods in constructing new codes from old codes in quantum error-correction theory, the concatenating and pasting, can be understood in the framework of nested quantum error correction codes.

Zhuo Wang; Kai Sun; Hen Fan; Vlatko Vedral

2009-09-28T23:59:59.000Z

51

Finding beam focus errors automatically  

SciTech Connect (OSTI)

An automated method for finding beam focus errors using an optimization program called COMFORT-PLUS. The steps involved in finding the correction factors using COMFORT-PLUS has been used to find the beam focus errors for two damping rings at the SLAC Linear Collider. The program is to be used as an off-line program to analyze actual measured data for any SLC system. A limitation on the application of this procedure is found to be that it depends on the magnitude of the machine errors. Another is that the program is not totally automated since the user must decide a priori where to look for errors. (LEW)

Lee, M.J.; Clearwater, S.H.; Kleban, S.D.

1987-01-01T23:59:59.000Z

52

Data& Error Analysis 1 DATA and ERROR ANALYSIS  

E-Print Network [OSTI]

Data& Error Analysis 1 DATA and ERROR ANALYSIS Performing the experiment and collecting data learned, you might get a better grade.) Data analysis should NOT be delayed until all of the data. This will help one avoid the problem of spending an entire class collecting bad data because of a mistake

Mukasyan, Alexander

53

Experimental Uncertainties (Errors) Sources of Experimental Uncertainties (Experimental Errors)  

E-Print Network [OSTI]

the preparation of the lab report. A calculator should 1. Bevington, P. R., Data Reduction and Error Analysis for the Physical Sciences, New York: McGraw-Hill, 1969. 2. Taylor, J. R., An introduction to uncertainty analysis in the lab. In this laboratory, we keep to a very simple form of error analysis, our purpose being more

Mukasyan, Alexander

54

Technology strategy for the semiconductor memory market  

E-Print Network [OSTI]

Solid state memories are used in a variety of applications as data and code storages. A non-volatile memory is a memory that retains information when its power supply is off. Flash memory is a type of nonvolatile memory ...

Nakamura, Tomohiko

2012-01-01T23:59:59.000Z

55

Computer memory management system  

DOE Patents [OSTI]

A computer memory management system utilizing a memory structure system of "intelligent" pointers in which information related to the use status of the memory structure is designed into the pointer. Through this pointer system, The present invention provides essentially automatic memory management (often referred to as garbage collection) by allowing relationships between objects to have definite memory management behavior by use of coding protocol which describes when relationships should be maintained and when the relationships should be broken. In one aspect, the present invention system allows automatic breaking of strong links to facilitate object garbage collection, coupled with relationship adjectives which define deletion of associated objects. In another aspect, The present invention includes simple-to-use infinite undo/redo functionality in that it has the capability, through a simple function call, to undo all of the changes made to a data model since the previous `valid state` was noted.

Kirk, III, Whitson John (Greenwood, MO)

2002-01-01T23:59:59.000Z

56

On the Characterization and Optimization of On-Chip Cache Reliability against Soft Errors  

E-Print Network [OSTI]

--Soft errors induced by energetic particle strikes in on-chip cache memories have become an increasing challenge in designing new generation reliable microprocessors. Previous efforts have exploited information. In this paper, we propose a new framework for conducting comprehensive studies and characterization

Ziavras, Sotirios G.

57

Device Memories and Matrix Multiplication 1 Device Memories  

E-Print Network [OSTI]

the same location. The GeForce 9400M has 65,536 bytes of constant memory, the total amount of global memory is 254 MBytes. The Tesla C2050/C2070 has 65,536 bytes of constant memory, the total amount of global memory, the total amount of global memory is 4,800 MBytes (5,032,706,048 bytes) with 1

Verschelde, Jan

58

Error correcting code with chip kill capability and power saving enhancement  

DOE Patents [OSTI]

A method and system are disclosed for detecting memory chip failure in a computer memory system. The method comprises the steps of accessing user data from a set of user data chips, and testing the user data for errors using data from a set of system data chips. This testing is done by generating a sequence of check symbols from the user data, grouping the user data into a sequence of data symbols, and computing a specified sequence of syndromes. If all the syndromes are zero, the user data has no errors. If one of the syndromes is non-zero, then a set of discriminator expressions are computed, and used to determine whether a single or double symbol error has occurred. In the preferred embodiment, less than two full system data chips are used for testing and correcting the user data.

Gara, Alan G. (Mount Kisco, NY); Chen, Dong (Croton On Husdon, NY); Coteus, Paul W. (Yorktown Heights, NY); Flynn, William T. (Rochester, MN); Marcella, James A. (Rochester, MN); Takken, Todd (Brewster, NY); Trager, Barry M. (Yorktown Heights, NY); Winograd, Shmuel (Scarsdale, NY)

2011-08-30T23:59:59.000Z

59

Mondriaan memory protection  

E-Print Network [OSTI]

Reliability and security are quickly becoming users' biggest concern due to the increasing reliance on computers in all areas of society. Hardware-enforced, fine-grained memory protection can increase the reliability and ...

Witchel, Emmett Jethro, 1970-

2004-01-01T23:59:59.000Z

60

Static Detection of Disassembly Errors  

SciTech Connect (OSTI)

Static disassembly is a crucial ?rst step in reverse engineering executable ?les, and there is a consider- able body of work in reverse-engineering of binaries, as well as areas such as semantics-based security anal- ysis, that assumes that the input executable has been correctly disassembled. However, disassembly errors, e.g., arising from binary obfuscations, can render this assumption invalid. This work describes a machine- learning-based approach, using decision trees, for stat- ically identifying possible errors in a static disassem- bly; such potential errors may then be examined more closely, e.g., using dynamic analyses. Experimental re- sults using a variety of input executables indicate that our approach performs well, correctly identifying most disassembly errors with relatively few false positives.

Krishnamoorthy, Nithya; Debray, Saumya; Fligg, Alan K.

2009-10-13T23:59:59.000Z

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


61

The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted.  

E-Print Network [OSTI]

parity) Energy demand and GDP per capita (1980-2002) As GDP increases, so does the demand's population is in the Fast- developing regions. Primaryenergypercapita(GJ) GDP per capita (purchasing power;Introduction Top Ten problems of Humanity for next 50 years 1. Energy 2. Water 3

Crawford, T. Daniel

62

Unequal error protection of subband coded bits  

E-Print Network [OSTI]

Source coded data can be separated into different classes based on their susceptibility to channel errors. Errors in the Important bits cause greater distortion in the reconstructed signal. This thesis presents an Unequal Error Protection scheme...

Devalla, Badarinath

2012-06-07T23:59:59.000Z

63

Two-Layer Error Control Codes Combining Rectangular and Hamming Product Codes for Cache Error  

E-Print Network [OSTI]

We propose a novel two-layer error control code, combining error detection capability of rectangular codes and error correction capability of Hamming product codes in an efficient way, in order to increase cache error ...

Zhang, Meilin

64

Efficient Memory Shadowing for 64-bit Architectures  

E-Print Network [OSTI]

Shadow memory is used by dynamic program analysis tools to store metadata for tracking properties of application memory. The efficiency of mapping between application memory and shadow memory has substantial impact on the ...

Zhao, Qin

2010-01-01T23:59:59.000Z

65

Error 404 - Document not found  

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),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicy and Assistance100 ton Stanat rollinggovErrors ERROR 404 - URL Not

66

Cache Memories ALAN JAY SMITH  

E-Print Network [OSTI]

Cache Memories ALAN JAY SMITH Unwersity of California, Berkeley, Californm 94720 Cache memories 1982 #12;474 * A. J. Smith CONTENTS INTRODUCTION Definltlonand Rationale Overwew of Cache Deslgn Cache

Lee, Hsien-Hsin "Sean"

67

Memorial to James Allan Bennyhoff  

E-Print Network [OSTI]

REFERENCES Anonymous 1993 James Allan Bennyhoff. Society forMemorial to James Allan Bennyhoff (January 3, 1926 - August

Hughes, Richard E

1994-01-01T23:59:59.000Z

68

Distributed Error Confinement Extended Abstract  

E-Print Network [OSTI]

. These algorithms can serve as building blocks in more general reactive systems. Previous results in exploring locality in reactive systems were not error confined, and relied on the assump- tion (not used in current, that seems inherent for voting in reactive networks; its analysis leads to an interesting combinatorial

Patt-Shamir, Boaz

69

Runtime Detection of C-Style Errors in UPC Code  

SciTech Connect (OSTI)

Unified Parallel C (UPC) extends the C programming language (ISO C 99) with explicit parallel programming support for the partitioned global address space (PGAS), which provides a global memory space with localized partitions to each thread. Like its ancestor C, UPC is a low-level language that emphasizes code efficiency over safety. The absence of dynamic (and static) safety checks allows programmer oversights and software flaws that can be hard to spot. In this paper, we present an extension of a dynamic analysis tool, ROSE-Code Instrumentation and Runtime Monitor (ROSECIRM), for UPC to help programmers find C-style errors involving the global address space. Built on top of the ROSE source-to-source compiler infrastructure, the tool instruments source files with code that monitors operations and keeps track of changes to the system state. The resulting code is linked to a runtime monitor that observes the program execution and finds software defects. We describe the extensions to ROSE-CIRM that were necessary to support UPC. We discuss complications that arise from parallel code and our solutions. We test ROSE-CIRM against a runtime error detection test suite, and present performance results obtained from running error-free codes. ROSE-CIRM is released as part of the ROSE compiler under a BSD-style open source license.

Pirkelbauer, P; Liao, C; Panas, T; Quinlan, D

2011-09-29T23:59:59.000Z

70

Global aspects of radiation memory  

E-Print Network [OSTI]

Gravitational radiation has a memory effect represented by a net change in the relative positions of test particles. Both the linear and nonlinear sources proposed for this radiation memory are of the "electric" type, or E mode, as characterized by the even parity of the polarization pattern. Although "magnetic" type, or B mode, radiation memory is mathematically possible, no physically realistic source has been identified. There is an electromagnetic counterpart to radiation memory in which the velocity of charged particles obtain a net "kick". Again, the physically realistic sources of electromagnetic radiation memory that have been identified are of the electric type. In this paper, a global null cone description of the electromagnetic field is applied to establish the non-existence of B mode radiation memory and the non-existence of E mode radiation memory due to a bound charge distribution.

J. Winicour

2014-10-11T23:59:59.000Z

71

TED KYCIA MEMORIAL SYMPOSIUM.  

SciTech Connect (OSTI)

On the afternoon of May 19 2000, a Memorial Seminar was held in the BNL physics Large Seminar Room to honor the memory of Ted Kyeia, a prominent particle physicist who had been a member of the BNL staff for 40 years. Although it was understandably a somewhat sad occasion because Ted was no longer with us, nevertheless there was much for his colleagues and friends to celebrate in recalling the outstanding contributions that he had made in those four decades. The Seminar speakers were all people who had worked with Ted during that period; each discussed one aspect of his career, but also included anecdotes and personal reminiscences. This booklet contains the Seminar program, listing the speakers, and also copies of transparencies of the talks (and one paper which was a later expansion of a talk); sadly, not all of the personal remarks appeared on the transparencies.

LITTENBERG, L.; RUBINSTEIN, R.; SAMIOS, N.; LI, K.; GIACOMELLI, G.; MOCKETT, P.; CARROLL, A.; JOHNSON, R.; BRYMAN, D.; TIPPENS, B.

2000-05-19T23:59:59.000Z

72

The memory glasses : wearable computing for just-in-time memory support  

E-Print Network [OSTI]

This thesis documents a body of wearable computing research surrounding the development of the Memory Glasses, a new type of proactive memory support technology. The Memory Glasses combines features of existing memory ...

DeVaul, Richard W. (Richard Wayne), 1971-

2004-01-01T23:59:59.000Z

73

Gifts in Memory of LEHIGH UNIVERSITY 1 Anonymous, in memory of  

E-Print Network [OSTI]

. Brown, in memory of Lawrence J. Varnerin, Jr. '91P R. N. Brummer, in memory of James W. Niemeyer '43 '68. Campbell, in memory of Gerald G. Leeman '71P '10GP Michael J. Caruso '67, in memory of Gerald G. Leeman '71, in memory of James E. Schierloh '51 Martin D. Cohen, in memory of Gerald G. Leeman '71P '10GP Kathleen

Gilchrist, James F.

74

Phase Errors and the Capture Effect  

SciTech Connect (OSTI)

This slide-show presents analysis of spectrograms and the phase error of filtered noise in a signal. When the filtered noise is smaller than the signal amplitude, the phase error can never exceed 90{deg}, so the average phase error over many cycles is zero: this is called the capture effect because the largest signal captures the phase and frequency determination.

Blair, J., and Machorro, E.

2011-11-01T23:59:59.000Z

75

Nanoparticle shuttle memory  

DOE Patents [OSTI]

A device for storing data using nanoparticle shuttle memory having a nanotube. The nanotube has a first end and a second end. A first electrode is electrically connected to the first end of the nanotube. A second electrode is electrically connected to the second end of the nanotube. The nanotube has an enclosed nanoparticle shuttle. A switched voltage source is electrically connected to the first electrode and the second electrode, whereby a voltage may be controllably applied across the nanotube. A resistance meter is also connected to the first electrode and the second electrode, whereby the electrical resistance across the nanotube can be determined.

Zettl, Alex Karlwalter (Kensington, CA)

2012-03-06T23:59:59.000Z

76

Memory Considerations for Carver  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubeyChallenge Melrose named topMemorial

77

Approximate error conjugation gradient minimization methods  

DOE Patents [OSTI]

In one embodiment, a method includes selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, calculating an approximate error using the subset of rays, and calculating a minimum in a conjugate gradient direction based on the approximate error. In another embodiment, a system includes a processor for executing logic, logic for selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, logic for calculating an approximate error using the subset of rays, and logic for calculating a minimum in a conjugate gradient direction based on the approximate error. In other embodiments, computer program products, methods, and systems are described capable of using approximate error in constrained conjugate gradient minimization problems.

Kallman, Jeffrey S

2013-05-21T23:59:59.000Z

78

Building Memories: Remembering and Forgetting of  

E-Print Network [OSTI]

Building Memories: Remembering and Forgetting of Verbal Experiences as Predicted by Brain Activity R. Rosen, Randy L. Buckner A fundamental question about human memory is why some experiences

Wagner, Anthony

79

Efficient Virtual Memory for Big Memory Servers Our analysis shows that many "big-memory" server workloads,  

E-Print Network [OSTI]

-memory" server workloads, such as databases, in-memory caches, and graph analytics, pay a high cost for page introduced [13]. In contrast, virtual memory usage has changed dramatically in recent years. For example-negligible energy [5, 41] To reevaluate the cost and benefit of decades-old page-based vir- tual memory in today

Hill, Mark D.

80

Corruption and Sustainable Development  

E-Print Network [OSTI]

warming. An estimate of the social cost of carbon dioxide emissions is subtracted from national savings, with the assumption that the average social cost of a tonne of carbon is US$30. The second part is designed to capture the impact of local... is also ignored.21 The calculations are also sensitive to the choice of wealth to GNI ratios. The social cost of carbon emissions seems on the low side and, in any case, represents an average value rather than social marginal cost. It is clear...

Aidt, Toke S.

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


81

Estimating IMU heading error from SAR images.  

SciTech Connect (OSTI)

Angular orientation errors of the real antenna for Synthetic Aperture Radar (SAR) will manifest as undesired illumination gradients in SAR images. These gradients can be measured, and the pointing error can be calculated. This can be done for single images, but done more robustly using multi-image methods. Several methods are provided in this report. The pointing error can then be fed back to the navigation Kalman filter to correct for problematic heading (yaw) error drift. This can mitigate the need for uncomfortable and undesired IMU alignment maneuvers such as S-turns.

Doerry, Armin Walter

2009-03-01T23:59:59.000Z

82

Flux recovery and a posteriori error estimators  

E-Print Network [OSTI]

bility and the local efficiency bounds for this estimator are established provided that the ... For simple model problems, the energy norm of the true error is equal.

2010-05-20T23:59:59.000Z

83

Wind Power Forecasting Error Distributions over Multiple Timescales (Presentation)  

SciTech Connect (OSTI)

This presentation presents some statistical analysis of wind power forecast errors and error distributions, with examples using ERCOT data.

Hodge, B. M.; Milligan, M.

2011-07-01T23:59:59.000Z

84

External-Memory Computational Geometry  

E-Print Network [OSTI]

the rst known optimal al- gorithms for a wide range of two-level and hierarchical multilevel memory models, including parallel models. The algorithms are optimal both in terms of I/O cost and internal computation....

Goodrich, Michael T.; Tsay, Jyh-Jong; Vengroff, Darren Erik; Vitter, Jeffrey Scott

1993-01-01T23:59:59.000Z

85

Remarks on statistical errors in equivalent widths  

E-Print Network [OSTI]

Equivalent width measurements for rapid line variability in atomic spectral lines are degraded by increasing error bars with shorter exposure times. We derive an expression for the error of the line equivalent width $\\sigma(W_\\lambda)$ with respect to pure photon noise statistics and provide a correction value for previous calculations.

Klaus Vollmann; Thomas Eversberg

2006-07-03T23:59:59.000Z

86

Quantum Error Correction Beyond Completely Positive Maps  

E-Print Network [OSTI]

By introducing an operator sum representation for arbitrary linear maps, we develop a generalized theory of quantum error correction (QEC) that applies to any linear map, in particular maps that are not completely positive (CP). This theory of "linear quantum error correction" is applicable in cases where the standard and restrictive assumption of a factorized initial system-bath state does not apply.

A. Shabani; D. A. Lidar

2009-10-21T23:59:59.000Z

87

Meeting 12 February 25, 1999 Error Measure  

E-Print Network [OSTI]

. The value of â?? is the corresponding eigenvalue. The eigen­ values are the roots of the characteristic distances is non­negative, so Q is pos­ itive semi­definite. The error of an edge contraction is obtained paraboloid as illustrated in Figure 3. In other words, the preimage of a constant error value ffl, E \\Gamma1

California at Berkeley, University of

88

T-624: Novell eDirectory LDAP-SSL Memory Allocation Error Lets...  

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

the target service to crash. On Netware-based systems, the system may crash. PLATFORM: Red Hat Enterprise, SuSE,AIX, HPUX, Solaris, Windows 2000, 2003 ABSTRACT: A remote user...

89

MC-Checker: Detecting Memory Consistency Errors in MPI One-Sided Applications  

E-Print Network [OSTI]

bugs in MPI one-sided applications, with low overhead, ranging from 24.6% to 71.1%, with an average Terms -- Design, Performance, Reliability Keywords -- Bug Detection, MPI, One-Sided Communication I- world application, where the one-sided MPI_Get operation (line 2) is nonblocking. As a result, the data

Balaji, Pavan

90

V-194: Citrix XenServer Memory Management Error Lets Local Administrative  

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

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),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research Petroleum ReserveDepartmentScripting AttacksThere isAttacksServiceAttacks

91

Prediction Error and Event Boundaries 1 Running Head: PREDICTION ERROR AND EVENT BOUNDARIES  

E-Print Network [OSTI]

Prediction Error and Event Boundaries 1 Running Head: PREDICTION ERROR AND EVENT BOUNDARIES A computational model of event segmentation from perceptual prediction. Jeremy R. Reynolds, Jeffrey M. Zacks, and Todd S. Braver Washington University Manuscript #12;Prediction Error and Event Boundaries 2 People tend

Zacks, Jeffrey M.

92

Effect of memory access and caching on high performance computing.  

E-Print Network [OSTI]

??High-performance computing is often limited by memory access. As speeds increase, processors are often waiting on data transfers to and from memory. Classic memory controllers… (more)

Groening, James

2012-01-01T23:59:59.000Z

93

Remote direct memory access  

DOE Patents [OSTI]

Methods, parallel computers, and computer program products are disclosed for remote direct memory access. Embodiments include transmitting, from an origin DMA engine on an origin compute node to a plurality target DMA engines on target compute nodes, a request to send message, the request to send message specifying a data to be transferred from the origin DMA engine to data storage on each target compute node; receiving, by each target DMA engine on each target compute node, the request to send message; preparing, by each target DMA engine, to store data according to the data storage reference and the data length, including assigning a base storage address for the data storage reference; sending, by one or more of the target DMA engines, an acknowledgment message acknowledging that all the target DMA engines are prepared to receive a data transmission from the origin DMA engine; receiving, by the origin DMA engine, the acknowledgement message from the one or more of the target DMA engines; and transferring, by the origin DMA engine, data to data storage on each of the target compute nodes according to the data storage reference using a single direct put operation.

Archer, Charles J.; Blocksome, Michael A.

2012-12-11T23:59:59.000Z

94

Energy Efficient Memory Speculation With Memory Latency Tolerance Supporting Sequential Consistency Without A Coherence Protocol  

E-Print Network [OSTI]

1–17, Sept. 2006. [35] Derek Hower. Acoherent shared memory.memory consistency models. Derek Hower [35] pro- posed the

Munday, David Alexander

2013-01-01T23:59:59.000Z

95

Engineering complex topological memories from simple Abelian models  

SciTech Connect (OSTI)

In three spatial dimensions, particles are limited to either bosonic or fermionic statistics. Two-dimensional systems, on the other hand, can support anyonic quasiparticles exhibiting richer statistical behaviors. An exciting proposal for quantum computation is to employ anyonic statistics to manipulate information. Since such statistical evolutions depend only on topological characteristics, the resulting computation is intrinsically resilient to errors. The so-called non-Abelian anyons are most promising for quantum computation, but their physical realization may prove to be complex. Abelian anyons, however, are easier to understand theoretically and realize experimentally. Here we show that complex topological memories inspired by non-Abelian anyons can be engineered in Abelian models. We explicitly demonstrate the control procedures for the encoding and manipulation of quantum information in specific lattice models that can be implemented in the laboratory. This bridges the gap between requirements for anyonic quantum computation and the potential of state-of-the-art technology. - Highlights: > A novel quantum memory using Abelian anyons is developed. > This uses an advanced encoding, inspired by non-Abelian anyons. > Errors are suppressed topologically, by means of single spin interactions. > An implementation with current Josephson junction technology is proposed.

Wootton, James R., E-mail: phyjrw@leeds.ac.uk [School of Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds LS2 9JT (United Kingdom); Lahtinen, Ville [School of Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds LS2 9JT (United Kingdom); Doucot, Benoit [Laboratoire de Physique Theorique et Hautes Energies, Universite Paris 6 et 7, Paris (France); Pachos, Jiannis K. [School of Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds LS2 9JT (United Kingdom)

2011-09-15T23:59:59.000Z

96

Scalable extraction of error models from the output of error detection circuits  

E-Print Network [OSTI]

Accurate methods of assessing the performance of quantum gates are extremely important. Quantum process tomography and randomized benchmarking are the current favored methods. Quantum process tomography gives detailed information, but significant approximations must be made to reduce this information to a form quantum error correction simulations can use. Randomized benchmarking typically outputs just a single number, the fidelity, giving no information on the structure of errors during the gate. Neither method is optimized to assess gate performance within an error detection circuit, where gates will be actually used in a large-scale quantum computer. Specifically, the important issues of error composition and error propagation lie outside the scope of both methods. We present a fast, simple, and scalable method of obtaining exactly the information required to perform effective quantum error correction from the output of continuously running error detection circuits, enabling accurate prediction of large-scale behavior.

Austin G. Fowler; D. Sank; J. Kelly; R. Barends; John M. Martinis

2014-05-06T23:59:59.000Z

97

Facemail : preventing common errors when composing email  

E-Print Network [OSTI]

Facemail is a system designed to investigate and prevent common errors that users make while composing emails. Users often accidentally send email to incorrect recipients by mistyping an email address, accidentally clicking ...

Lieberman, Eric (Eric W.)

2006-01-01T23:59:59.000Z

98

Organizational Errors: Directions for Future Research  

E-Print Network [OSTI]

The goal of this chapter is to promote research about organizational errors—i.e., the actions of multiple organizational participants that deviate from organizationally specified rules and can potentially result in adverse ...

Carroll, John Stephen

99

Quantum error-correcting codes and devices  

DOE Patents [OSTI]

A method of forming quantum error-correcting codes by first forming a stabilizer for a Hilbert space. A quantum information processing device can be formed to implement such quantum codes.

Gottesman, Daniel (Los Alamos, NM)

2000-10-03T23:59:59.000Z

100

The Error-Pattern-Correcting Turbo Equalizer  

E-Print Network [OSTI]

The error-pattern correcting code (EPCC) is incorporated in the design of a turbo equalizer (TE) with aim to correct dominant error events of the inter-symbol interference (ISI) channel at the output of its matching Viterbi detector. By targeting the low Hamming-weight interleaved errors of the outer convolutional code, which are responsible for low Euclidean-weight errors in the Viterbi trellis, the turbo equalizer with an error-pattern correcting code (TE-EPCC) exhibits a much lower bit-error rate (BER) floor compared to the conventional non-precoded TE, especially for high rate applications. A maximum-likelihood upper bound is developed on the BER floor of the TE-EPCC for a generalized two-tap ISI channel, in order to study TE-EPCC's signal-to-noise ratio (SNR) gain for various channel conditions and design parameters. In addition, the SNR gain of the TE-EPCC relative to an existing precoded TE is compared to demonstrate the present TE's superiority for short interleaver lengths and high coding rates.

Alhussien, Hakim

2010-01-01T23:59:59.000Z

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


101

acquired immunologic memory: Topics by E-print Network  

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

and investigates urinary metabolomic biomarkers (more) Skappak, Christopher Dustin 163 Memory traces of trace memories: neurogenesis, synaptogenesis and Biology and...

102

Quantum memory for superconducting qubits  

SciTech Connect (OSTI)

Many protocols for quantum computation require a memory element to store qubits. We discuss the speed and accuracy with which quantum states prepared in a superconducting qubit can be stored in and later retrieved from an attached high-Q resonator. The memory fidelity depends on both the qubit-resonator coupling strength and the location of the state on the Bloch sphere. Our results show that a quantum memory demonstration should be possible with existing superconducting qubit designs, which would be an important milestone in solid-state quantum information processing. Although we specifically focus on a large-area, current-biased Josesphson-junction phase qubit coupled to the dilatational mode of a piezoelectric nanoelectromechanical disk resonator, many of our results will apply to other qubit-oscillator models.

Pritchett, Emily J.; Geller, Michael R. [Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602-2451 (United States)

2005-07-15T23:59:59.000Z

103

THE HEART OF CAMPUS Memorial Union Building  

E-Print Network [OSTI]

THE HEART OF CAMPUS Memorial Union Building University of New Hampshire 83 Main Street Durham, NH The Memorial Union Building is "The Heart of Campus" and serves as the official New Hampshire State War

New Hampshire, University of

104

Design of Ferromagnetic Shape Memory Alloy Composites  

E-Print Network [OSTI]

, superelasticity, bending plate, coil spring. INTRODUCTION RECENTLY, FERROMAGNETIC SHAPE memory alloys (FSMAs torque actuator (bending of FSMA composite plate) and spring actuator (torsion of helical FSMA composite spring). KEY WORDS: shape memory alloy, ferromagnetic material, stress-induced martensite transformation

Taya, Minoru

105

Program Transformations in Weak Memory Models   

E-Print Network [OSTI]

We analyse the validity of common optimisations on multi-threaded programs in two memory models—the DRF guarantee and the Java Memory Model. Unlike in the single-threaded world, even simple program transformations, such ...

Sevcik, Jaroslav

2009-01-01T23:59:59.000Z

106

Exploring the interaction between working memory and long-term memory: Evidence for the workspace model   

E-Print Network [OSTI]

There is a large range of models of working memory, each with different scopes and emphases. Current interest focuses strongly on the interaction of working memory with long-term memory, as it has become clear that models of working memory alone...

van der Meulen, Marian

107

Particle-induced bit errors in high performance fiber optic data links for satellite data management  

SciTech Connect (OSTI)

Experimental test methods and analysis tools are demonstrated to assess particle-induced bit errors on fiber optic link receivers for satellites. Susceptibility to direct ionization from low LET particles is quantified by analyzing proton and helium ion data as a function of particle LET. Existing single event analysis approaches are shown to apply, with appropriate modifications, to the regime of temporally (rather than spatially) distributed bits, even though the sensitivity to single events exceeds conventional memory technologies by orders of magnitude. The cross-section LET dependence follows a Weibull distribution at data rates from 200 to 1,000 Mbps and at various incident optical power levels. The LET threshold for errors is shown, through both experiment and modeling, to be 0 in all cases. The error cross-section exhibits a strong inverse dependence on received optical power in the LET range where most orbital single events would occur, thus indicating that errors can be minimized by operating links with higher incident optical power. Also, an analytic model is described which incorporates the appropriate physical characteristics of the link as well as the optical and receiver electrical characteristics. Results indicate appropriate steps to assure suitable link performance even in severe particle orbits.

Marshall, P.W.; Carts, M.A. (Naval Research Lab., Washington, DC (United States) SFA, Inc., Landover, MD (United States)); Dale, C.J. (Naval Research Lab., Washington, DC (United States)); LaBel, K.A. (NASA Goddard Space Flight Center, Greenbelt, MD (United States))

1994-12-01T23:59:59.000Z

108

A study of analog memories  

E-Print Network [OSTI]

A STUDY OF ANALOG MEMORIES A Thesis by JOSEPH MICHAEL OTT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements tor the degree of MASTER OF SCIENCE August 1983 Major Subject: Electrical... Fngineering A STUDY OF ANALOG MEMORIES A Thesis JOSEPH MZCHAEL OTT Approved as to style and content by: P. E. Allen (Chairman of Committee) N. R. Strader (Member) W. M. Lxvely (Member) W. B. Jones (Head of Department) August 1983 , 0 AS STRA C...

Ott, Joseph Michael

1983-01-01T23:59:59.000Z

109

Memory Usage Considerations on Edison  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubeyChallenge Melrose named topMemorialMemory

110

Government User Session Translation Memory TechnologyTranslation Memory Technology  

E-Print Network [OSTI]

Rachael Richardson Tucker Maney Naval Research Laboratory Carol Van Ess-Dykema Susan Converse John S Requirements for Multi-Genre Translation · Motivations for TM Technology Assessment · Pilot Study · ResultsPoint slides, etc. #12;Government User Session Translation Memory Technology Assessment: Pilot Study Goals

Gupta, Kalyan Moy

111

Memory Optimization for Phase-field Simulations  

SciTech Connect (OSTI)

Phase-field simulations are computationally and memory intensive applications. Many of the phase-field simulations being conducted in support of NEAMS were not capable of running on “normal clusters” with 2-4GB of RAM per core, and instead required specialized “big-memory” clusters with 64GB per core. To address this issue, the MOOSE team developed a new Python-based utility called MemoryLogger, and applied it to locate, diagnose, and eradicate memory bottlenecks within the MOOSE framework. MemoryLogger allows for a better understanding of the memory usage of an application being run in parallel across a cluster. Memory usage information is captured for every individual process in a parallel job, and communicated to the head node of the cluster. Console text output from the application itself is automatically matched with this memory usage information to produce a detailed picture of memory usage over time, making it straightforward to identify the subroutines which contribute most to the application’s peak memory usage. The information produced by the MemoryLogger quickly and effectively narrows the search for memory optimizations to the most data-intensive parts of the simulation.

Derek Gaston; John Peterson; Andrew Slaughter; Cody Permann; David Andrs

2014-08-01T23:59:59.000Z

112

Shape memory polymer foams for endovascular therapies  

DOE Patents [OSTI]

A system for occluding a physical anomaly. One embodiment comprises a shape memory material body wherein the shape memory material body fits within the physical anomaly occluding the physical anomaly. The shape memory material body has a primary shape for occluding the physical anomaly and a secondary shape for being positioned in the physical anomaly.

Wilson, Thomas S. (Castro Valley, CA); Maitland, Duncan J. (Pleasant Hill, CA)

2012-03-13T23:59:59.000Z

113

Improving locality with dynamic memory allocation  

E-Print Network [OSTI]

xii LIST OF FIGURES FIGURE Page 1 Object size distribution : : : : : : : : : : : : : : : : : : : : : : : : : 23 2 Memory distribution : : : : : : : : : : : : : : : : : : : : : : : : : : : 23 3 Example where traditional memory allocation does.... The faster, more This dissertation follows the style of ACM Special Interest Group on Programming Languages. 1In spite of a recent slowdown of the processor speed due to shrinking distances, power consumption and heat, memory bandwidth still does not keep up...

Jula, Alin Narcis

2009-05-15T23:59:59.000Z

114

Nanoscale Reversible Mass Transport for Archival Memory  

E-Print Network [OSTI]

years. The memory unit can be written to and read out using two-terminal electrical leads operated, allowing application as a nonvolatile memory element with potentially hundreds of memory states per device of Physics, PennsylVania State UniVersity, UniVersity Park, PennsylVania 16802 Received December 16, 2008

Yuzvinsky, Tom

115

A systems approach to reducing utility billing errors  

E-Print Network [OSTI]

Many methods for analyzing the possibility of errors are practiced by organizations who are concerned about safety and error prevention. However, in situations where the error occurrence is random and difficult to track, ...

Ogura, Nori

2013-01-01T23:59:59.000Z

116

Error Detection and Recovery for Robot Motion Planning with Uncertainty  

E-Print Network [OSTI]

Robots must plan and execute tasks in the presence of uncertainty. Uncertainty arises from sensing errors, control errors, and uncertainty in the geometry of the environment. The last, which is called model error, has ...

Donald, Bruce Randall

1987-07-01T23:59:59.000Z

117

Configurable memory system and method for providing atomic counting operations in a memory device  

DOE Patents [OSTI]

A memory system and method for providing atomic memory-based counter operations to operating systems and applications that make most efficient use of counter-backing memory and virtual and physical address space, while simplifying operating system memory management, and enabling the counter-backing memory to be used for purposes other than counter-backing storage when desired. The encoding and address decoding enabled by the invention provides all this functionality through a combination of software and hardware.

Bellofatto, Ralph E. (Ridgefield, CT); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Ohmacht, Martin (Yorktown Heights, NY)

2010-09-14T23:59:59.000Z

118

Running jobs error: "inet_arp_address_lookup"  

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

jobs error: "inetarpaddresslookup" Resolved: Running jobs error: "inetarpaddresslookup" September 22, 2013 by Helen He (0 Comments) Symptom: After the Hopper August 14...

119

T-598: Apache Tomcat HTTP BIO Connector Error Discloses Information...  

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

598: Apache Tomcat HTTP BIO Connector Error Discloses Information From Different Requests to Remote Users T-598: Apache Tomcat HTTP BIO Connector Error Discloses Information From...

120

V-235: Cisco Mobility Services Engine Configuration Error Lets...  

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

5: Cisco Mobility Services Engine Configuration Error Lets Remote Users Login Anonymously V-235: Cisco Mobility Services Engine Configuration Error Lets Remote Users Login...

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


121

Uncertainty and error in computational simulations  

SciTech Connect (OSTI)

The present paper addresses the question: ``What are the general classes of uncertainty and error sources in complex, computational simulations?`` This is the first step of a two step process to develop a general methodology for quantitatively estimating the global modeling and simulation uncertainty in computational modeling and simulation. The second step is to develop a general mathematical procedure for representing, combining and propagating all of the individual sources through the simulation. The authors develop a comprehensive view of the general phases of modeling and simulation. The phases proposed are: conceptual modeling of the physical system, mathematical modeling of the system, discretization of the mathematical model, computer programming of the discrete model, numerical solution of the model, and interpretation of the results. This new view is built upon combining phases recognized in the disciplines of operations research and numerical solution methods for partial differential equations. The characteristics and activities of each of these phases is discussed in general, but examples are given for the fields of computational fluid dynamics and heat transfer. They argue that a clear distinction should be made between uncertainty and error that can arise in each of these phases. The present definitions for uncertainty and error are inadequate and. therefore, they propose comprehensive definitions for these terms. Specific classes of uncertainty and error sources are then defined that can occur in each phase of modeling and simulation. The numerical sources of error considered apply regardless of whether the discretization procedure is based on finite elements, finite volumes, or finite differences. To better explain the broad types of sources of uncertainty and error, and the utility of their categorization, they discuss a coupled-physics example simulation.

Oberkampf, W.L.; Diegert, K.V.; Alvin, K.F.; Rutherford, B.M.

1997-10-01T23:59:59.000Z

122

Bounds for Small-Error and Zero-Error Quantum Algorithms Harry Buhrman  

E-Print Network [OSTI]

Bounds for Small-Error and Zero-Error Quantum Algorithms Harry Buhrman CWI Richard Cleve University algorithm with an auxiliary input r, which is uniformly distributed over some underlying sample space. In this case, for any x 2 f0;1gn, f(x) = 1 iff (9r 2 S)(A(x;r) = 1). Grover's quantum search algorithm [15

de Wolf, Ronald

123

Retiming for Soft Error Minimization Under Error-Latching Window Constraints  

E-Print Network [OSTI]

sensitivity to naturally- occurring radiation and the consequent soft error rates of CMOS circuits. Moreover Soft error, also known as single-event upsets (SEU), caused by radiation-induced charged particles circuits [3]: electrical masking occurs when SEUs are attenuated before being latched because

Zhou, Hai

124

Laser Phase Errors in Seeded FELs  

SciTech Connect (OSTI)

Harmonic seeding of free electron lasers has attracted significant attention from the promise of transform-limited pulses in the soft X-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.

Ratner, D.; Fry, A.; Stupakov, G.; White, W.; /SLAC

2012-03-28T23:59:59.000Z

125

Storage Techniques in Flash Memories and Phase-change Memories  

E-Print Network [OSTI]

advice on research, writing, and presentation. Without Andrew?s encouragement and help during the difficult times in my PhD study, this dissertation would not have been possible. I would like to thank Dr. Jennifer Welch, Dr. Jianer Chen, and Dr. Alex... . . . . . . . . . . . . . . . . 4 1. Principles and Operations in Flash Memories . . . . . 4 a. Read Operation . . . . . . . . . . . . . . . . . . . 5 b. Programming Operation . . . . . . . . . . . . . . 5 c. Erase Operation . . . . . . . . . . . . . . . . . . . 6 d. Decreasing...

Li, Hao

2010-10-12T23:59:59.000Z

126

MEASUREMENT AND CORRECTION OF ULTRASONIC ANEMOMETER ERRORS  

E-Print Network [OSTI]

commonly show systematic errors depending on wind speed due to inaccurate ultrasonic transducer mounting three- dimensional wind speed time series. Results for the variance and power spectra are shown. 1 wind speeds with ultrasonic anemometers: The measu- red flow is distorted by the probe head

Heinemann, Detlev

127

Hierarchical Classification of Documents with Error Control  

E-Print Network [OSTI]

Hierarchical Classification of Documents with Error Control Chun-hung Cheng1 , Jian Tang2 , Ada Wai is a function that matches a new object with one of the predefined classes. Document classification is characterized by the large number of attributes involved in the objects (documents). The traditional method

King, Kuo Chin Irwin

128

Hierarchical Classification of Documents with Error Control  

E-Print Network [OSTI]

Hierarchical Classification of Documents with Error Control Chun­hung Cheng 1 , Jian Tang 2 , Ada. Classification is a function that matches a new object with one of the predefined classes. Document classification is characterized by the large number of attributes involved in the objects (documents

Fu, Ada Waichee

129

Adjoint Error Correction for Integral Outputs  

E-Print Network [OSTI]

a combustor; the total heat ux into a high pressure turbine blade from the surrounding ow; average noise. As an example, consider the wake behind a wing. To adequately resolve the wake requires a #12;ne grid locally in which the grid resolution is rather coarse. Grid adaptation based on error estimates that look

Pierce, Niles A.

130

Verifying Volume Rendering Using Discretization Error Analysis  

E-Print Network [OSTI]

Verifying Volume Rendering Using Discretization Error Analysis Tiago Etiene, Daniel Jo¨nsson, Timo--We propose an approach for verification of volume rendering correctness based on an analysis of the volume rendering integral, the basis of most DVR algorithms. With respect to the most common discretization

Kirby, Mike

131

Distribution of Wind Power Forecasting Errors from Operational Systems (Presentation)  

SciTech Connect (OSTI)

This presentation offers new data and statistical analysis of wind power forecasting errors in operational systems.

Hodge, B. M.; Ela, E.; Milligan, M.

2011-10-01T23:59:59.000Z

132

Statistical Analysis of CCD Data: Error Analysis/Noise Theorem  

E-Print Network [OSTI]

Statistical Analysis of CCD Data: Error Analysis/Noise Theorem Why Statistical Approach? Systematic Errors Random Errors (= Statistical Errors) Accuracy and Precision Best Estimator: Mean, Median Distribution Statistical CCD Data Analysis #12;Why do we need statistical analysis? (= Why do we need to worry

Peletier, Reynier

133

Memorial Day | Department of Energy  

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 RankCombustion | Department of EnergyDevelopmentTechnologies |Charles Page -to DOE re5,Memorial Day

134

What Scientific Applications can Benefit from Hardware Transactional Memory?  

SciTech Connect (OSTI)

Achieving efficient and correct synchronization of multiple threads is a difficult and error-prone task at small scale and, as we march towards extreme scale computing, will be even more challenging when the resulting application is supposed to utilize millions of cores efficiently. Transactional Memory (TM) is a promising technique to ease the burden on the programmer, but only recently has become available on commercial hardware in the new Blue Gene/Q system and hence the real benefit for realistic applications has not been studied, yet. This paper presents the first performance results of TM embedded into OpenMP on a prototype system of BG/Q and characterizes code properties that will likely lead to benefits when augmented with TM primitives. We first, study the influence of thread count, environment variables and memory layout on TM performance and identify code properties that will yield performance gains with TM. Second, we evaluate the combination of OpenMP with multiple synchronization primitives on top of MPI to determine suitable task to thread ratios per node. Finally, we condense our findings into a set of best practices. These are applied to a Monte Carlo Benchmark and a Smoothed Particle Hydrodynamics method. In both cases an optimized TM version, executed with 64 threads on one node, outperforms a simple TM implementation. MCB with optimized TM yields a speedup of 27.45 over baseline.

Schindewolf, M; Bihari, B; Gyllenhaal, J; Schulz, M; Wang, A; Karl, W

2012-06-04T23:59:59.000Z

135

Attachment and memory for negative emotional events  

E-Print Network [OSTI]

Control of Emotions on Explicit Memory. . . . . . Interaction of Anxiety X EEQ Positive Affect on Explicit Memory. . 50 51 51 Mediation Model 52 Interaction of Anxiety X Video Mood on Explicit Memory 52 Interaction of Avoidance X Sex on Imphcit... monitored their responses to the video content through a hidden camera in the laboratory room. The video clip, which came from the Swedish film Autumn Sonata directed by Ingmar Bergman, was selected on the basis of its negative, attachment-relevant content...

Wilson, Carol Leigh

2012-06-07T23:59:59.000Z

136

Video Stores, Media Technologies, and Memory  

E-Print Network [OSTI]

a collection entitled Mobile Technology & Place (Routledge,Identity,” in Mobile Technologies: From Telecommunicationsin an essay on mobile media technologies and memory, Nicola

Wilken, Rowan

2010-01-01T23:59:59.000Z

137

Immunological Memory is Associative Derek J. Smith  

E-Print Network [OSTI]

Immunological Memory is Associative Derek J. Smith Department of Computer Science University of New , 1989; Nara & Goudsmit, 1990; Smith, 1994). Immunologists refer to associative recall as a cross

Somayaji, Anil

138

Shape memory response of ni2mnga and nimncoin magnetic shape memory alloys under compression  

E-Print Network [OSTI]

In this study, the shape memory response of Ni2MnGa and NiMnCoIn magnetic shape memory alloys was observed under compressive stresses. Ni2MnGa is a magnetic shape memory alloy (MSMA) that has been shown to exhibit fully reversible, stressassisted...

Brewer, Andrew Lee

2009-05-15T23:59:59.000Z

139

Energy Efficient Phase Change Memory Based Main Memory for Future High Performance Systems  

E-Print Network [OSTI]

hybrid system using a commodity DRAM cache. Keywords-Memory Controller, DRAM, PCM, Energy I. INTRODUCTIONEnergy Efficient Phase Change Memory Based Main Memory for Future High Performance Systems Abstract system of similar storage size. Our proposed system is highly energy efficient and provides 35

Conte, Thomas M.

140

Systematic Errors in measurement of b1  

SciTech Connect (OSTI)

A class of spin observables can be obtained from the relative difference of or asymmetry between cross sections of different spin states of beam or target particles. Such observables have the advantage that the normalization factors needed to calculate absolute cross sections from yields often divide out or cancel to a large degree in constructing asymmetries. However, normalization factors can change with time, giving different normalization factors for different target or beam spin states, leading to systematic errors in asymmetries in addition to those determined from statistics. Rapidly flipping spin orientation, such as what is routinely done with polarized beams, can significantly reduce the impact of these normalization fluctuations and drifts. Target spin orientations typically require minutes to hours to change, versus fractions of a second for beams, making systematic errors for observables based on target spin flips more difficult to control. Such systematic errors from normalization drifts are discussed in the context of the proposed measurement of the deuteron b(1) structure function at Jefferson Lab.

Wood, S A

2014-10-27T23:59:59.000Z

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


141

Preserving photon qubits in an unknown quantum state with Knill Dynamical Decoupling - Towards an all optical quantum memory  

E-Print Network [OSTI]

The implementation of polarization-based quantum communication is limited by signal loss and decoherence caused by the birefringence of a single-mode fiber. We investigate the Knill dynamical decoupling scheme, implemented using half-wave plates, to minimize decoherence and show that a fidelity greater than $99\\%$ can be achieved in absence of rotation error and fidelity greater than $96\\%$ can be achieved in presence of rotation error. Such a scheme can be used to preserve any quantum state with high fidelity and has potential application for constructing all optical quantum delay line, quantum memory, and quantum repeater.

Manish K. Gupta; Erik J. Navarro; Todd A. Moulder; Jason D. Mueller; Ashkan Balouchi; Katherine L. Brown; Hwang Lee; Jonathan P. Dowling

2014-12-19T23:59:59.000Z

142

Grain constraint and size effects in shape memory alloy microwires  

E-Print Network [OSTI]

Shape memory alloys exhibit interesting and useful properties, such as the shape memory effect and superelasticity. Among the many alloy families that have been shown to exhibit shape memory properties the ones based on ...

Ueland, Stian Melhus

2013-01-01T23:59:59.000Z

143

Cu-based shape memory microwires : towards complex structures  

E-Print Network [OSTI]

Shape memory alloys are a distinctive type of material that exhibits the fascinating properties of the shape memory effect and superelasticity. Shape memory properties are characterized by the diffusionless phase transformation ...

Gager, Mac (Brian McClure, Jr.)

2014-01-01T23:59:59.000Z

144

Correlated errors can lead to better performance of quantum codes  

E-Print Network [OSTI]

A formulation for evaluating the performance of quantum error correcting codes for a general error model is presented. In this formulation, the correlation between errors is quantified by a Hamiltonian description of the noise process. We classify correlated errors using the system-bath interaction: local versus nonlocal and two-body versus many-body interactions. In particular, we consider Calderbank-Shor-Steane codes and observe a better performance in the presence of correlated errors depending on the timing of the error recovery. We also find this timing to be an important factor in the design of a coding system for achieving higher fidelities.

A. Shabani

2008-03-06T23:59:59.000Z

145

Using on-package memory  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered energy consumption by sectorlongUpdates byUser GuideHadoopUsingon-package memory

146

Extra-Large Memory Nodes  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial Thin FilmEquipment SSRLExploringExtra-Large Memory

147

Earthquake 'memory' could spur aftershocks  

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),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLE FRUIT reducesEarlyEarthquake 'memory' could spur

148

Measuring and Understanding Memory Bandwidth  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey MathematicaMeasuring and Understanding Memory

149

Memory Usage Considerations on Hopper  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubeyChallenge Melrose namedMemory Considerations

150

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

DOE Patents [OSTI]

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

Ohmacht, Martin

2014-09-09T23:59:59.000Z

151

Efficient Error Calculation for Multiresolution Texture-Based Volume Visualization  

SciTech Connect (OSTI)

Multiresolution texture-based volume visualization is an excellent technique to enable interactive rendering of massive data sets. Interactive manipulation of a transfer function is necessary for proper exploration of a data set. However, multiresolution techniques require assessing the accuracy of the resulting images, and re-computing the error after each change in a transfer function is very expensive. They extend their existing multiresolution volume visualization method by introducing a method for accelerating error calculations for multiresolution volume approximations. Computing the error for an approximation requires adding individual error terms. One error value must be computed once for each original voxel and its corresponding approximating voxel. For byte data, i.e., data sets where integer function values between 0 and 255 are given, they observe that the set of error pairs can be quite large, yet the set of unique error pairs is small. instead of evaluating the error function for each original voxel, they construct a table of the unique combinations and the number of their occurrences. To evaluate the error, they add the products of the error function for each unique error pair and the frequency of each error pair. This approach dramatically reduces the amount of computation time involved and allows them to re-compute the error associated with a new transfer function quickly.

LaMar, E; Hamann, B; Joy, K I

2001-10-16T23:59:59.000Z

152

Modesto Memorial Hospital Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Memorial Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Modesto Memorial Hospital Space Heating Low Temperature Geothermal Facility...

153

associative memory models: Topics by E-print Network  

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

David 1971-01-01 2 COMPLEX ASSOCIATIVE MEMORY NEURAL NETWORK MODEL FOR INVARIANT PATTERN RECOGNITION Engineering Websites Summary: COMPLEX ASSOCIATIVE MEMORY NEURAL...

154

associative memory model: Topics by E-print Network  

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

David 1971-01-01 2 COMPLEX ASSOCIATIVE MEMORY NEURAL NETWORK MODEL FOR INVARIANT PATTERN RECOGNITION Engineering Websites Summary: COMPLEX ASSOCIATIVE MEMORY NEURAL...

155

Online Data Structures in External Memory  

E-Print Network [OSTI]

/output communication (or I/O) between the external and internal memories. In this paper we discuss a variety of online data structures for external memory, some very old and some very new, such as hashing (for dictionaries), B-trees (for dictionaries and 1-D range...

Vitter, Jeffrey Scott

1999-01-01T23:59:59.000Z

156

Memory and Reality Marcia K. Johnson  

E-Print Network [OSTI]

Memory and Reality Marcia K. Johnson Yale University Although it may be disconcerting guilty that we didn't save any for my father (Johnson, 1985). When I finished, my parents laughed in reality monitoring, or a false memory (Johnson, 1977, 1988; Johnson & Raye, 1981, 1998). Of course, people

Johnson, Marcia K.

157

Synaptic plasticity and memory Richard Kempter  

E-Print Network [OSTI]

Synaptic plasticity and memory Richard Kempter 1,2,3 & Dietmar Schmitz 2,3 1 Institute in the central nervous system. In its most general form, the "synaptic plasticity and memory hypothesis" states, and that synaptic plasticity is both necessary and sufficient for the storage of information underlying

Kempter, Richard

158

Tier identification (TID) for tiered memory characteristics  

DOE Patents [OSTI]

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

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

2014-03-25T23:59:59.000Z

159

Performance evaluation of NUMA and COMA distributed shared-memory multiprocessors  

E-Print Network [OSTI]

Memory architecture is an important component in a distributed shared-memory parallel computer. This thesis studies three shared-memory architectures-Non-Uniform Memory Access (NUMA) with full-mapped directories, Cache-Only Memory Architecture (COMA...

Holzrichter, Michael Warren

1995-01-01T23:59:59.000Z

160

Human error contribution to nuclear materials-handling events  

E-Print Network [OSTI]

This thesis analyzes a sample of 15 fuel-handling events from the past ten years at commercial nuclear reactors with significant human error contributions in order to detail the contribution of human error to fuel-handling ...

Sutton, Bradley (Bradley Jordan)

2007-01-01T23:59:59.000Z

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


161

Quantum Error Correcting Subsystem Codes From Two Classical Linear Codes  

E-Print Network [OSTI]

The essential insight of quantum error correction was that quantum information can be protected by suitably encoding this quantum information across multiple independently erred quantum systems. Recently it was realized that, since the most general method for encoding quantum information is to encode it into a subsystem, there exists a novel form of quantum error correction beyond the traditional quantum error correcting subspace codes. These new quantum error correcting subsystem codes differ from subspace codes in that their quantum correcting routines can be considerably simpler than related subspace codes. Here we present a class of quantum error correcting subsystem codes constructed from two classical linear codes. These codes are the subsystem versions of the quantum error correcting subspace codes which are generalizations of Shor's original quantum error correcting subspace codes. For every Shor-type code, the codes we present give a considerable savings in the number of stabilizer measurements needed in their error recovery routines.

Dave Bacon; Andrea Casaccino

2006-10-17T23:59:59.000Z

162

Reply To "Comment on 'Quantum Convolutional Error-Correcting Codes' "  

E-Print Network [OSTI]

In their comment, de Almedia and Palazzo \\cite{comment} discovered an error in my earlier paper concerning the construction of quantum convolutional codes (quant-ph/9712029). This error can be repaired by modifying the method of code construction.

H. F. Chau

2005-06-02T23:59:59.000Z

163

Temperature and electrical memory of polymer fibers  

SciTech Connect (OSTI)

We report in this work studies of the shape memory behavior of polymer fibers loaded with carbon nanotubes or graphene flakes. These materials exhibit enhanced shape memory properties with the generation of a giant stress upon shape recovery. In addition, they exhibit a surprising temperature memory with a peak of generated stress at a temperature nearly equal to the temperature of programming. This temperature memory is ascribed to the presence of dynamical heterogeneities and to the intrinsic broadness of the glass transition. We present recent experiments related to observables other than mechanical properties. In particular nanocomposite fibers exhibit variations of electrical conductivity with an accurate memory. Indeed, the rate of conductivity variations during temperature changes reaches a well defined maximum at a temperature equal to the temperature of programming. Such materials are promising for future actuators that couple dimensional changes with sensing electronic functionalities.

Yuan, Jinkai; Zakri, Cécile; Grillard, Fabienne; Neri, Wilfrid; Poulin, Philippe [Centre de Recherche Paul Pascal - CNRS, University of Bordeaux, Avenue Schweitzer, 33600 Pessac (France)

2014-05-15T23:59:59.000Z

164

Adiabatic Quantum Optimization for Associative Memory Recall  

E-Print Network [OSTI]

Hopfield networks are a variant of associative memory that recall information stored in the couplings of an Ising model. Stored memories are fixed points for the network dynamics that correspond to energetic minima of the spin state. We formulate the recall of memories stored in a Hopfield network using energy minimization by adiabatic quantum optimization (AQO). Numerical simulations of the quantum dynamics allow us to quantify the AQO recall accuracy with respect to the number of stored memories and the noise in the input key. We also investigate AQO performance with respect to how memories are stored in the Ising model using different learning rules. Our results indicate that AQO performance varies strongly with learning rule due to the changes in the energy landscape. Consequently, learning rules offer indirect methods for investigating change to the computational complexity of the recall task and the computational efficiency of AQO.

Hadayat Seddiqi; Travis S. Humble

2014-12-12T23:59:59.000Z

165

Performing an allreduce operation using shared memory  

DOE Patents [OSTI]

Methods, apparatus, and products are disclosed for performing an allreduce operation using shared memory that include: receiving, by at least one of a plurality of processing cores on a compute node, an instruction to perform an allreduce operation; establishing, by the core that received the instruction, a job status object for specifying a plurality of shared memory allreduce work units, the plurality of shared memory allreduce work units together performing the allreduce operation on the compute node; determining, by an available core on the compute node, a next shared memory allreduce work unit in the job status object; and performing, by that available core on the compute node, that next shared memory allreduce work unit.

Archer, Charles J. (Rochester, MN); Dozsa, Gabor (Ardsley, NY); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

2012-04-17T23:59:59.000Z

166

Error Analysis in Nuclear Density Functional Theory  

E-Print Network [OSTI]

Nuclear density functional theory (DFT) is the only microscopic, global approach to the structure of atomic nuclei. It is used in numerous applications, from determining the limits of stability to gaining a deep understanding of the formation of elements in the universe or the mechanisms that power stars and reactors. The predictive power of the theory depends on the amount of physics embedded in the energy density functional as well as on efficient ways to determine a small number of free parameters and solve the DFT equations. In this article, we discuss the various sources of uncertainties and errors encountered in DFT and possible methods to quantify these uncertainties in a rigorous manner.

Nicolas Schunck; Jordan D. McDonnell; Jason Sarich; Stefan M. Wild; Dave Higdon

2014-07-11T23:59:59.000Z

167

Edison Trouble Shooting and Error Messages  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: Networking for the Future ofTrouble Shooting and Error Messages

168

Clustered Error Correction of Codeword-Stabilized Quantum Codes  

E-Print Network [OSTI]

Codeword stabilized (CWS) codes are a general class of quantum codes that includes stabilizer codes and many families of non-additive codes with good parameters. For such a non-additive code correcting all t-qubit errors, we propose an algorithm that employs a single measurement to test all errors located on a given set of t qubits. Compared with exhaustive error screening, this reduces the total number of measurements required for error recovery by a factor of about 3^t.

Yunfan Li; Ilya Dumer; Leonid P. Pryadko

2010-03-08T23:59:59.000Z

169

Standard errors of parameter estimates in the ETAS model  

E-Print Network [OSTI]

1 Standard errors of parameter estimates in the ETAS model Abstract Point process models of seismic catalogs and in short- term earthquake forecasting. The standard errors of parameter estimates of conventional standard error estimates based on the Hessian matrix of the log- likelihood function of the ETAS

Schoenberg, Frederic Paik (Rick)

170

Instruction Guide Paying Vendors: Checking Vouchers for Errors  

E-Print Network [OSTI]

Instruction Guide Paying Vendors: Checking Vouchers for Errors and Match Exceptions Updated the Pay Terms on the voucher · Changing the Vendor or Vendor address · Vouchering a PO that have receipts link or the Error Summary tab. #12;Instruction Guide Paying Vendors: Checking Vouchers for Errors

Watson, Craig A.

171

A random access memory immune to single event upset using a T-Resistor  

DOE Patents [OSTI]

In a random access memory cell, a resistance ''T'' decoupling network in each leg of the cell reduces random errors caused by the interaction of energetic ions with the semiconductor material forming the cell. The cell comprises two parallel legs each containing a series pair of complementary MOS transistors having a common gate connected to the node between the transistors of the opposite leg. The decoupling network in each leg is formed by a series pair of resistors between the transistors together with a third resistor interconnecting the junction between the pair of resistors and the gate of the transistor pair forming the opposite leg of the cell. 4 figs.

Ochoa, A. Jr.

1987-10-28T23:59:59.000Z

172

Random access memory immune to single event upset using a T-resistor  

DOE Patents [OSTI]

In a random access memory cell, a resistance "T" decoupling network in each leg of the cell reduces random errors caused by the interaction of energetic ions with the semiconductor material forming the cell. The cell comprises two parallel legs each containing a series pair of complementary MOS transistors having a common gate connected to the node between the transistors of the opposite leg. The decoupling network in each leg is formed by a series pair of resistors between the transistors together with a third resistor interconnecting the junction between the pair of resistors and the gate of the transistor pair forming the opposite leg of the cell.

Ochoa, Jr., Agustin (Vista, CA)

1989-01-01T23:59:59.000Z

173

Public Key Encryption Which is Simultaneously a Locally-Decodable Error-Correcting Code  

E-Print Network [OSTI]

that homomorphic encryption implies PIR, we give a general reduction from any semantically-secure homomorphic, this is a protocol that is semantically-secure in the standard sense, but possesses the additional property|) number of bits of the corrupted ciphertext and performing computation polynomial in the security

174

E791 DATA ACQUISITION SYSTEM Error reports received ; no new errors reported  

E-Print Network [OSTI]

of events written to tape. 18 #12; Error and Status Displays Mailbox For Histogram Requests Vax­online Event Display VAX 11 / 780 Event Reconstruction Event Display Detector Monitoring 3 VAX Workstations 42 EXABYTE of the entire E791 DA system. The VAX 11/780 was the user interface to the VME part of the system, via the DA

Fermi National Accelerator Laboratory

175

Analysis of Errors in a Special Perturbations Satellite Orbit Propagator  

SciTech Connect (OSTI)

We performed an analysis of error densities for the Special Perturbations orbit propagator using data for 29 satellites in orbits of interest to Space Shuttle and International Space Station collision avoidance. We find that the along-track errors predominate. These errors increase monotonically over each 36-hour prediction interval. The predicted positions in the along-track direction progressively either leap ahead of or lag behind the actual positions. Unlike the along-track errors the radial and cross-track errors oscillate about their nearly zero mean values. As the number of observations per fit interval decline the along-track prediction errors, and amplitudes of the radial and cross-track errors, increase.

Beckerman, M.; Jones, J.P.

1999-02-01T23:59:59.000Z

176

Evaluating and Minimizing Distributed Cavity Phase Errors in Atomic Clocks  

E-Print Network [OSTI]

We perform 3D finite element calculations of the fields in microwave cavities and analyze the distributed cavity phase errors of atomic clocks that they produce. The fields of cylindrical cavities are treated as an azimuthal Fourier series. Each of the lowest components produces clock errors with unique characteristics that must be assessed to establish a clock's accuracy. We describe the errors and how to evaluate them. We prove that sharp structures in the cavity do not produce large frequency errors, even at moderately high powers, provided the atomic density varies slowly. We model the amplitude and phase imbalances of the feeds. For larger couplings, these can lead to increased phase errors. We show that phase imbalances produce a novel distributed cavity phase error that depends on the cavity detuning. We also design improved cavities by optimizing the geometry and tuning the mode spectrum so that there are negligible phase variations, allowing this source of systematic error to be dramatically reduced.

Li, Ruoxin

2010-01-01T23:59:59.000Z

177

Evaluating and Minimizing Distributed Cavity Phase Errors in Atomic Clocks  

E-Print Network [OSTI]

We perform 3D finite element calculations of the fields in microwave cavities and analyze the distributed cavity phase errors of atomic clocks that they produce. The fields of cylindrical cavities are treated as an azimuthal Fourier series. Each of the lowest components produces clock errors with unique characteristics that must be assessed to establish a clock's accuracy. We describe the errors and how to evaluate them. We prove that sharp structures in the cavity do not produce large frequency errors, even at moderately high powers, provided the atomic density varies slowly. We model the amplitude and phase imbalances of the feeds. For larger couplings, these can lead to increased phase errors. We show that phase imbalances produce a novel distributed cavity phase error that depends on the cavity detuning. We also design improved cavities by optimizing the geometry and tuning the mode spectrum so that there are negligible phase variations, allowing this source of systematic error to be dramatically reduced.

Ruoxin Li; Kurt Gibble

2010-08-09T23:59:59.000Z

178

Row Buffer Locality Aware Caching Policies for Hybrid Memories  

E-Print Network [OSTI]

strengths · A hybrid memory system (DRAM-PCM) aims for best of both · Problem: How to place data between static energy (no refresh) 6 DRAM PCM CPU MC MC #12;Hybrid Memory · Design direction: DRAM as a cache memory devices? 8 DRAM PCM CPU MC MC #12;Outline · Background: Hybrid Memory Systems · Motivation: Row

179

Learning, Memory, and Education Lessons for the Classroom  

E-Print Network [OSTI]

Learning, Memory, and Education Lessons for the Classroom Michael A. Yassa, M.A. Ph.D. Candidate memory? How can we optimize individual learning? How do lessons from memory apply to the classroom? Brain individual learning? How do lessons from memory apply to the classroom? Brain-based learning: fact or fiction

Rose, Michael R.

180

Automatic Memory Partitioning and Scheduling for Throughput and Power Optimization  

E-Print Network [OSTI]

- matic memory partitioning technique which can efficiently improve throughput and reduce energy to tackle this problem is to increase memory ports in the final memory imple- mentations. However, recent research in [16] shows that the size of memory cells increases almost quadratically with port number N

Cong, Jason "Jingsheng"

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


181

Non-volatile memory for checkpoint storage  

DOE Patents [OSTI]

A system, method and computer program product for supporting system initiated checkpoints in high performance parallel computing systems and storing of checkpoint data to a non-volatile memory storage device. The system and method generates selective control signals to perform checkpointing of system related data in presence of messaging activity associated with a user application running at the node. The checkpointing is initiated by the system such that checkpoint data of a plurality of network nodes may be obtained even in the presence of user applications running on highly parallel computers that include ongoing user messaging activity. In one embodiment, the non-volatile memory is a pluggable flash memory card.

Blumrich, Matthias A.; Chen, Dong; Cipolla, Thomas M.; Coteus, Paul W.; Gara, Alan; Heidelberger, Philip; Jeanson, Mark J.; Kopcsay, Gerard V.; Ohmacht, Martin; Takken, Todd E.

2014-07-22T23:59:59.000Z

182

Direct access inter-process shared memory  

DOE Patents [OSTI]

A technique for directly sharing physical memory between processes executing on processor cores is described. The technique includes loading a plurality of processes into the physical memory for execution on a corresponding plurality of processor cores sharing the physical memory. An address space is mapped to each of the processes by populating a first entry in a top level virtual address table for each of the processes. The address space of each of the processes is cross-mapped into each of the processes by populating one or more subsequent entries of the top level virtual address table with the first entry in the top level virtual address table from other processes.

Brightwell, Ronald B; Pedretti, Kevin; Hudson, Trammell B

2013-10-22T23:59:59.000Z

183

Securing non-volatile memory regions  

DOE Patents [OSTI]

Methods, apparatus and articles of manufacture to secure non-volatile memory regions are disclosed. An example method disclosed herein comprises associating a first key pair and a second key pair different than the first key pair with a process, using the first key pair to secure a first region of a non-volatile memory for the process, and using the second key pair to secure a second region of the non-volatile memory for the same process, the second region being different than the first region.

Faraboschi, Paolo; Ranganathan, Parthasarathy; Muralimanohar, Naveen

2013-08-20T23:59:59.000Z

184

Pressure Change Measurement Leak Testing Errors  

SciTech Connect (OSTI)

A pressure change test is a common leak testing method used in construction and Non-Destructive Examination (NDE). The test is known as being a fast, simple, and easy to apply evaluation method. While this method may be fairly quick to conduct and require simple instrumentation, the engineering behind this type of test is more complex than is apparent on the surface. This paper intends to discuss some of the more common errors made during the application of a pressure change test and give the test engineer insight into how to correctly compensate for these factors. The principals discussed here apply to ideal gases such as air or other monoatomic or diatomic gasses; however these same principals can be applied to polyatomic gasses or liquid flow rate with altered formula specific to those types of tests using the same methodology.

Pryor, Jeff M [ORNL] [ORNL; Walker, William C [ORNL] [ORNL

2014-01-01T23:59:59.000Z

185

Quantum Error Correction with magnetic molecules  

E-Print Network [OSTI]

Quantum algorithms often assume independent spin qubits to produce trivial $|\\uparrow\\rangle=|0\\rangle$, $|\\downarrow\\rangle=|1\\rangle$ mappings. This can be unrealistic in many solid-state implementations with sizeable magnetic interactions. Here we show that the lower part of the spectrum of a molecule containing three exchange-coupled metal ions with $S=1/2$ and $I=1/2$ is equivalent to nine electron-nuclear qubits. We derive the relation between spin states and qubit states in reasonable parameter ranges for the rare earth $^{159}$Tb$^{3+}$ and for the transition metal Cu$^{2+}$, and study the possibility to implement Shor's Quantum Error Correction code on such a molecule. We also discuss recently developed molecular systems that could be adequate from an experimental point of view.

José J. Baldoví; Salvador Cardona-Serra; Juan M. Clemente-Juan; Luis Escalera-Moreno; Alejandro Gaita-Arińo; Guillermo Mínguez Espallargas

2014-08-22T23:59:59.000Z

186

Graphical Quantum Error-Correcting Codes  

E-Print Network [OSTI]

We introduce a purely graph-theoretical object, namely the coding clique, to construct quantum errorcorrecting codes. Almost all quantum codes constructed so far are stabilizer (additive) codes and the construction of nonadditive codes, which are potentially more efficient, is not as well understood as that of stabilizer codes. Our graphical approach provides a unified and classical way to construct both stabilizer and nonadditive codes. In particular we have explicitly constructed the optimal ((10,24,3)) code and a family of 1-error detecting nonadditive codes with the highest encoding rate so far. In the case of stabilizer codes a thorough search becomes tangible and we have classified all the extremal stabilizer codes up to 8 qubits.

Sixia Yu; Qing Chen; C. H. Oh

2007-09-12T23:59:59.000Z

187

Theoretical analysis of reflected ray error from surface slope error and their application to the solar concentrated collector  

E-Print Network [OSTI]

Surface slope error of concentrator is one of the main factors to influence the performance of the solar concentrated collectors which cause deviation of reflected ray and reduce the intercepted radiation. This paper presents the general equation to calculate the standard deviation of reflected ray error from slope error through geometry optics, applying the equation to calculate the standard deviation of reflected ray error for 5 kinds of solar concentrated reflector, provide typical results. The results indicate that the slope error is transferred to the reflected ray in more than 2 folds when the incidence angle is more than 0. The equation for reflected ray error is generally fit for all reflection surfaces, and can also be applied to control the error in designing an abaxial optical system.

Huang, Weidong

2011-01-01T23:59:59.000Z

188

Funes the Memorious by Jorge Luis Borges  

E-Print Network [OSTI]

Funes, who, after falling off his horse and receiving a bad head injury, acquired the amazing talent on the morning of April 30, 1882, and he could compare them in his memory with the veins in the marbled binding

189

Engineer Nanocrystal Floating Gate Memory Scaling  

E-Print Network [OSTI]

flash memory [2-9]. Metal silicide NCs, with high density ofsemiconductors [14], metal, metallic silicide and metal-like2, 3], metal [4, 5], metallic silicide [6, 7, 8], core-shell

Ren, Jingjian

2012-01-01T23:59:59.000Z

190

Size Effects in Ferromagnetic Shape Memory Alloys  

E-Print Network [OSTI]

effects in these mechanisms has both scientific and technological relevance. Superelastic behavior of Ni54Fe19Ga27 shape memory alloy single crystalline pillars was studied under compression as a function of pillar diameter. Multiple pillars...

Ozdemir, Nevin

2012-07-16T23:59:59.000Z

191

Painted Ponies: Essays on Memory and Loss  

E-Print Network [OSTI]

This collection explores the spiral nature of memory as it examines the way loss and one's reactions to loss repeat themselves in new guises and new contexts. Interspersing poetry with essays of memoir, Klayder examines ...

Klayder, Mary

2008-12-30T23:59:59.000Z

192

Robust exponential memory in Hopfield networks  

E-Print Network [OSTI]

The Hopfield recurrent neural network is an auto-associative distributed model of memory. This architecture is able to store collections of generic binary patterns as robust attractors; i.e., fixed-points of the network dynamics having large basins of attraction. However, the number of (randomly generated) storable memories scales at most linearly in the number of neurons, and it has been a long-standing question whether robust super-polynomial storage is possible in recurrent networks of linear threshold elements. Here, we design sparsely-connected Hopfield networks on $n$-nodes having \\[\\frac{2^{\\sqrt{2n} + \\frac{1}{4}}}{n^{1/4} \\sqrt{\\pi}}\\] graph cliques as robust memories by analytically minimizing the probability flow objective function over these patterns. Our methods also provide a biologically plausible convex learning algorithm that efficiently discovers these networks from training on very few sample memories.

Christopher Hillar; Ngoc M. Tran

2014-11-17T23:59:59.000Z

193

Orthopaedic applications of ferromagnetic shape memory alloys  

E-Print Network [OSTI]

Ferromagnetic shape memory alloys (FSMAs) are a new class of magnetic field-actuated active materials with no current commercial applications. By applying a magnetic field of around 0.4 T, they can exert a stress of ...

Guo, Weimin, M. Eng. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

194

Video Stores, Media Technologies, and Memory  

E-Print Network [OSTI]

both for analogue and digital media (e.g. , memory loss duefrom all forms of digital media usage (broadband downloadingin relation to digital media is signal compression and audio

Wilken, Rowan

2010-01-01T23:59:59.000Z

195

ACOHERENT SHARED MEMORY Derek R. Hower  

E-Print Network [OSTI]

ACOHERENT SHARED MEMORY by Derek R. Hower A dissertation submitted in partial fulfillment. Hower 2012 All Rights Reserved #12;i Abstract The computer industry has entered an era where energy

Hill, Mark D.

196

Aggressive children's memory for attachment relevant information  

E-Print Network [OSTI]

This study examined a measure of children's memory for information from a story about a hypothetical mother and child, the Story Task, as a potential tool to delineate subtypes of aggressive children based on the pattern of information processing...

Collie, Claire Futamase

2004-09-30T23:59:59.000Z

197

Electoral Corruption in Developing Democracies  

E-Print Network [OSTI]

Nieto’s votes. Mexico, 2012 Campeche, PRI Expected votesChiapas, PRD Expected votes Campeche, PRD Expected votesQueretaro Michoacan Durango Campeche Last Digit Distrito

Cantu, Francisco

198

Electoral Corruption in Developing Democracies  

E-Print Network [OSTI]

Results . . . . . 5.2 Venezuela . . . . . . . . .5.2.1Results for each Forensic Analysis in Mexico, Venezuela andelections in Venezuela. . . . . . . . . . . . . . . . . . .

Cantu, Francisco

199

Corruption in India Andrew Sanchez  

E-Print Network [OSTI]

citizens to access resources and preferential state treatment to which they are not entitled. Second much worse, including regional neighbours Pakistan and Bangladesh. However, the real significance

200

Electoral Corruption in Developing Democracies  

E-Print Network [OSTI]

Results . . . . . 5.3 Bolivia . . . . . . . . . . 5.3.1Bolivia. . . . . . . . . . . . . . . . . . . . . . . . . . . .Administrative departments in Bolivia. Departments in black

Cantu, Francisco

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


201

Distributed trace using central performance counter memory  

DOE Patents [OSTI]

A plurality of processing cores, are central storage unit having at least memory connected in a daisy chain manner, forming a daisy chain ring layout on an integrated chip. At least one of the plurality of processing cores places trace data on the daisy chain connection for transmitting the trace data to the central storage unit, and the central storage unit detects the trace data and stores the trace data in the memory co-located in with the central storage unit.

Satterfield, David L; Sexton, James C

2013-10-22T23:59:59.000Z

202

Distributed trace using central performance counter memory  

DOE Patents [OSTI]

A plurality of processing cores, are central storage unit having at least memory connected in a daisy chain manner, forming a daisy chain ring layout on an integrated chip. At least one of the plurality of processing cores places trace data on the daisy chain connection for transmitting the trace data to the central storage unit, and the central storage unit detects the trace data and stores the trace data in the memory co-located in with the central storage unit.

Satterfield, David L.; Sexton, James C.

2013-01-22T23:59:59.000Z

203

Associative memory in phasing neuron networks  

SciTech Connect (OSTI)

We studied pattern formation in a network of coupled Hindmarsh-Rose model neurons and introduced a new model for associative memory retrieval using networks of Kuramoto oscillators. Hindmarsh-Rose Neural Networks can exhibit a rich set of collective dynamics that can be controlled by their connectivity. Specifically, we showed an instance of Hebb's rule where spiking was correlated with network topology. Based on this, we presented a simple model of associative memory in coupled phase oscillators.

Nair, Niketh S [ORNL; Bochove, Erik J. [United States Air Force Research Laboratory, Kirtland Air Force Base; Braiman, Yehuda [ORNL

2014-01-01T23:59:59.000Z

204

Post polymerization cure shape memory polymers  

DOE Patents [OSTI]

This invention relates to chemical polymer compositions, methods of synthesis, and fabrication methods for devices regarding polymers capable of displaying shape memory behavior (SMPs) and which can first be polymerized to a linear or branched polymeric structure, having thermoplastic properties, subsequently processed into a device through processes typical of polymer melts, solutions, and dispersions and then crossed linked to a shape memory thermoset polymer retaining the processed shape.

Wilson, Thomas S; Hearon, Michael Keith; Bearinger, Jane P

2014-11-11T23:59:59.000Z

205

Low latency memory access and synchronization  

DOE Patents [OSTI]

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

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

2010-10-19T23:59:59.000Z

206

Low latency memory access and synchronization  

DOE Patents [OSTI]

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

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

2007-02-06T23:59:59.000Z

207

Deterministic treatment of model error in geophysical data assimilation  

E-Print Network [OSTI]

This chapter describes a novel approach for the treatment of model error in geophysical data assimilation. In this method, model error is treated as a deterministic process fully correlated in time. This allows for the derivation of the evolution equations for the relevant moments of the model error statistics required in data assimilation procedures, along with an approximation suitable for application to large numerical models typical of environmental science. In this contribution we first derive the equations for the model error dynamics in the general case, and then for the particular situation of parametric error. We show how this deterministic description of the model error can be incorporated in sequential and variational data assimilation procedures. A numerical comparison with standard methods is given using low-order dynamical systems, prototypes of atmospheric circulation, and a realistic soil model. The deterministic approach proves to be very competitive with only minor additional computational c...

Carrassi, Alberto

2015-01-01T23:59:59.000Z

208

Quantum root-mean-square error and measurement uncertainty relations  

E-Print Network [OSTI]

Recent years have witnessed a controversy over Heisenberg's famous error-disturbance relation. Here we resolve the conflict by way of an analysis of the possible conceptualizations of measurement error and disturbance in quantum mechanics. We discuss two approaches to adapting the classic notion of root-mean-square error to quantum measurements. One is based on the concept of noise operator; its natural operational content is that of a mean deviation of the values of two observables measured jointly, and thus its applicability is limited to cases where such joint measurements are available. The second error measure quantifies the differences between two probability distributions obtained in separate runs of measurements and is of unrestricted applicability. We show that there are no nontrivial unconditional joint-measurement bounds for {\\em state-dependent} errors in the conceptual framework discussed here, while Heisenberg-type measurement uncertainty relations for {\\em state-independent} errors have been proven.

Paul Busch; Pekka Lahti; Reinhard F Werner

2014-10-10T23:59:59.000Z

209

Parallel Worldline Numerics: Implementation and Error Analysis  

E-Print Network [OSTI]

We give an overview of the worldline numerics technique, and discuss the parallel CUDA implementation of a worldline numerics algorithm. In the worldline numerics technique, we wish to generate an ensemble of representative closed-loop particle trajectories, and use these to compute an approximate average value for Wilson loops. We show how this can be done with a specific emphasis on cylindrically symmetric magnetic fields. The fine-grained, massive parallelism provided by the GPU architecture results in considerable speedup in computing Wilson loop averages. Furthermore, we give a brief overview of uncertainty analysis in the worldline numerics method. There are uncertainties from discretizing each loop, and from using a statistical ensemble of representative loops. The former can be minimized so that the latter dominates. However, determining the statistical uncertainties is complicated by two subtleties. Firstly, the distributions generated by the worldline ensembles are highly non-Gaussian, and so the standard error in the mean is not a good measure of the statistical uncertainty. Secondly, because the same ensemble of worldlines is used to compute the Wilson loops at different values of $T$ and $x_\\mathrm{ cm}$, the uncertainties associated with each computed value of the integrand are strongly correlated. We recommend a form of jackknife analysis which deals with both of these problems.

Dan Mazur; Jeremy S. Heyl

2014-07-28T23:59:59.000Z

210

Homological Error Correction: Classical and Quantum Codes  

E-Print Network [OSTI]

We prove several theorems characterizing the existence of homological error correction codes both classically and quantumly. Not every classical code is homological, but we find a family of classical homological codes saturating the Hamming bound. In the quantum case, we show that for non-orientable surfaces it is impossible to construct homological codes based on qudits of dimension $D>2$, while for orientable surfaces with boundaries it is possible to construct them for arbitrary dimension $D$. We give a method to obtain planar homological codes based on the construction of quantum codes on compact surfaces without boundaries. We show how the original Shor's 9-qubit code can be visualized as a homological quantum code. We study the problem of constructing quantum codes with optimal encoding rate. In the particular case of toric codes we construct an optimal family and give an explicit proof of its optimality. For homological quantum codes on surfaces of arbitrary genus we also construct a family of codes asymptotically attaining the maximum possible encoding rate. We provide the tools of homology group theory for graphs embedded on surfaces in a self-contained manner.

H. Bombin; M. A. Martin-Delgado

2006-05-10T23:59:59.000Z

211

Temperature-dependent errors in nuclear lattice simulations  

E-Print Network [OSTI]

We study the temperature dependence of discretization errors in nuclear lattice simulations. We find that for systems with strong attractive interactions the predominant error arises from the breaking of Galilean invariance. We propose a local "well-tempered" lattice action which eliminates much of this error. The well-tempered action can be readily implemented in lattice simulations for nuclear systems as well as cold atomic Fermi systems.

Dean Lee; Richard Thomson

2007-01-17T23:59:59.000Z

212

Optimized Learning with Bounded Error for Feedforward Neural Networks  

E-Print Network [OSTI]

Optimized Learning with Bounded Error for Feedforward Neural Networks A. Alessandri, M. Sanguineti-based learnings. A. Alessandri is with the Naval Automatio

Maggiore, Manfredi

213

Nonlinear local error bounds via a change of metric  

E-Print Network [OSTI]

Oct 23, 2014 ... Abstract: In this work, we improve the approach of Corvellec-Motreanu to nonlinear error bounds for lowersemicontinuous functions on ...

Dominique Azé

2014-10-23T23:59:59.000Z

214

New Fractional Error Bounds for Polynomial Systems with ...  

E-Print Network [OSTI]

Our major result extends the existing error bounds from the system involving only a ... linear complementarity systems with polynomial data as well as high-order ...

2014-07-27T23:59:59.000Z

215

Missing working memory deficit in dyslexia: children writing from memory Erlijn van Genuchtena,b  

E-Print Network [OSTI]

Missing working memory deficit in dyslexia: children writing from memory Erlijn van Genuchtena,b (e of writing processes of children with dyslexia, in order to examine the relationship between WM and writing. An experiment was used in which children with dyslexia, and chronological age-matched and reading age

Cheng, Peter

216

Combining Distributed Memory and Shared Memory Parallelization for Data Mining Algorithms  

E-Print Network [OSTI]

Combining Distributed Memory and Shared Memory Parallelization for Data Mining Algorithms Ruoming that are applicable to a number of common data mining algorithms. These techniques are incorpo- rated in a middleware-alone implementations of individual parallel data mining algorithms. Over- all, our work shows that a common framework

Jin, Ruoming

217

Upper bounds on the error probabilities and asymptotic error exponents in quantum multiple state discrimination  

SciTech Connect (OSTI)

We consider the multiple hypothesis testing problem for symmetric quantum state discrimination between r given states ?{sub 1}, …, ?{sub r}. By splitting up the overall test into multiple binary tests in various ways we obtain a number of upper bounds on the optimal error probability in terms of the binary error probabilities. These upper bounds allow us to deduce various bounds on the asymptotic error rate, for which it has been hypothesized that it is given by the multi-hypothesis quantum Chernoff bound (or Chernoff divergence) C(?{sub 1}, …, ?{sub r}), as recently introduced by Nussbaum and Szko?a in analogy with Salikhov's classical multi-hypothesis Chernoff bound. This quantity is defined as the minimum of the pairwise binary Chernoff divergences min{sub j

Audenaert, Koenraad M. R., E-mail: koenraad.audenaert@rhul.ac.uk [Department of Mathematics, Royal Holloway University of London, Egham TW20 0EX (United Kingdom); Department of Physics and Astronomy, University of Ghent, S9, Krijgslaan 281, B-9000 Ghent (Belgium); Mosonyi, Milán, E-mail: milan.mosonyi@gmail.com [Física Teňrica: Informació i Fenomens Quŕntics, Universitat Autňnoma de Barcelona, ES-08193 Bellaterra, Barcelona (Spain); Mathematical Institute, Budapest University of Technology and Economics, Egry József u 1., Budapest 1111 (Hungary)

2014-10-15T23:59:59.000Z

218

Uniform and optimal error estimates of an exponential wave ...  

E-Print Network [OSTI]

of the error propagation, cut-off of the nonlinearity, and the energy method. ...... gives Lemma 3.4 for the local truncation error, which is of spectral order in ... estimates, we adopt a strategy similar to the finite difference method [4] (cf. diagram.

2014-05-01T23:59:59.000Z

219

PROPAGATION OF ERRORS IN SPATIAL ANALYSIS Peter P. Siska  

E-Print Network [OSTI]

, the conversion of data from analog to digital form used to be an extremely time-consuming process. At present process then the resulting error is inflated up to 20 percent for each grid cell of the final map. The magnitude of errors naturally increases with an addition of every new layer entering the overlay process

Hung, I-Kuai

220

Quasi-sparse eigenvector diagonalization and stochastic error correction  

E-Print Network [OSTI]

We briefly review the diagonalization of quantum Hamiltonians using the quasi-sparse eigenvector (QSE) method. We also introduce the technique of stochastic error correction, which systematically removes the truncation error of the QSE result by stochastically sampling the contribution of the remaining basis states.

Dean Lee

2000-08-30T23:59:59.000Z

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


221

ERROR VISUALIZATION FOR TANDEM ACOUSTIC MODELING ON THE AURORA TASK  

E-Print Network [OSTI]

ERROR VISUALIZATION FOR TANDEM ACOUSTIC MODELING ON THE AURORA TASK Manuel J. Reyes. This structure reduces the error rate on the Aurora 2 noisy English digits task by more than 50% compared development of tandem systems showed an improvement in the performance on the Aurora task [2] of these systems

Ellis, Dan

222

Entanglement and Quantum Error Correction with Superconducting Qubits  

E-Print Network [OSTI]

Entanglement and Quantum Error Correction with Superconducting Qubits A Dissertation Presented David Reed All rights reserved. #12;Entanglement and Quantum Error Correction with Superconducting is to use superconducting quantum bits in the circuit quantum electro- dynamics (cQED) architecture. There

223

A Sensing Error Aware MAC Protocol for Cognitive Radio Networks  

E-Print Network [OSTI]

Cognitive radios (CR) are intelligent radio devices that can sense the radio environment and adapt to changes in the radio environment. Spectrum sensing and spectrum access are the two key CR functions. In this paper, we present a spectrum sensing error aware MAC protocol for a CR network collocated with multiple primary networks. We explicitly consider both types of sensing errors in the CR MAC design, since such errors are inevitable for practical spectrum sensors and more important, such errors could have significant impact on the performance of the CR MAC protocol. Two spectrum sensing polices are presented, with which secondary users collaboratively sense the licensed channels. The sensing policies are then incorporated into p-Persistent CSMA to coordinate opportunistic spectrum access for CR network users. We present an analysis of the interference and throughput performance of the proposed CR MAC, and find the analysis highly accurate in our simulation studies. The proposed sensing error aware CR MAC p...

Hu, Donglin

2011-01-01T23:59:59.000Z

224

Memory device using movement of protons  

DOE Patents [OSTI]

An electrically written memory element is disclosed utilizing the motion of protons within a dielectric layer surrounded by layers on either side to confine the protons within the dielectric layer with electrode means attached to the surrounding layers to change the spatial position of the protons within the dielectric layer. The device is preferably constructed as a silicon-silicon dioxide-silicon layered structure with the protons being introduced to the structure laterally through the exposed edges of the silicon dioxide layer during a high temperature anneal in an atmosphere containing hydrogen gas. The device operates at low power, is preferably nonvolatile, is radiation tolerant, and is compatible with convention silicon MOS processing for integration with other microelectronic elements on the same silicon substrate. With the addition of an optically active layer, the memory element becomes an electrically written, optically read optical memory element. 19 figs.

Warren, W.L.; Vanheusden, K.J.R.; Fleetwood, D.M.; Devine, R.A.B.

1998-11-03T23:59:59.000Z

225

Hydrodynamical random walker with chemotactic memory  

E-Print Network [OSTI]

A three-dimensional hydrodynamical model for a micro random walker is combined with the idea of chemotactic signaling network of E. coli. Diffusion exponents, orientational correlation functions and their dependence on the geometrical and dynamical parameters of the system are analyzed numerically. Because of the chemotactic memory, the walker shows superdiffusing displacements in all directions with the largest diffusion exponent for a direction along the food gradient. Mean square displacements and orientational correlation functions show that the chemotactic memory washes out all the signatures due to the geometrical asymmetry of the walker and statistical properties are asymmetric only with respect to the direction of food gradient. For different values of the memory time, the Chemotactic index (CI) is also calculated.

H. Mohammady; B. Esckandariun; A. Najafi

2014-10-01T23:59:59.000Z

226

Memory device using movement of protons  

DOE Patents [OSTI]

An electrically written memory element utilizing the motion of protons within a dielectric layer surrounded by layers on either side to confine the protons within the dielectric layer with electrode means attached to the surrounding layers to change the spatial position of the protons within the dielectric layer. The device is preferably constructed as a silicon-silicon dioxide-silicon layered structure with the protons being introduced to the structure laterally through the exposed edges of the silicon dioxide layer during a high temperature anneal in an atmosphere containing hydrogen gas. The device operates at low power, is preferably nonvolatile, is radiation tolerant, and is compatible with convention silicon MOS processing for integration with other microelectronic elements on the same silicon substrate. With the addition of an optically active layer, the memory element becomes an electrically written, optically read optical memory element.

Warren, William L. (Albuquerque, NM); Vanheusden, Karel J. R. (Albuquerque, NM); Fleetwood, Daniel M. (Albuquerque, NM); Devine, Roderick A. B. (St. Martin le Vinoux, FR)

2000-01-01T23:59:59.000Z

227

Development of Superelastic Effects in Ferrous Shape Memory Alloy  

E-Print Network [OSTI]

SE: Superelastic effect SME: Shape memory effect Nitinol:shape memory effect, (SME), whereby the material returns toelastic strain. In SMAs, the SME and SE are based on the

Olson, Scott Michael

228

Linking dopaminergic physiology to working memory related neural circuitry  

E-Print Network [OSTI]

Working memory is the ability to hold information "online" over a delay in order to perform a task. This kind of memory is thought to be encoded in the brain by persistent neural activity that outlasts the presentation of ...

Bolton, Andrew D. (Andrew Donald)

2014-01-01T23:59:59.000Z

229

Intellectual property strategy : analysis of the flash memory industry  

E-Print Network [OSTI]

This thesis studies the intellectual property strategy of companies in the flash memory industry, with special emphasis on technology and the development of nitride-based flash, a new and emerging type of memory technology. ...

Ogura, Tomoko H

2006-01-01T23:59:59.000Z

230

Speedy transactions in multicore in-memory databases  

E-Print Network [OSTI]

Silo is a new in-memory database that achieves excellent performance and scalability on modern multicore machines. Silo was designed from the ground up to use system memory and caches efficiently. For instance, it avoids ...

Tu, Stephen

231

Method for refreshing a non-volatile memory  

DOE Patents [OSTI]

A non-volatile memory and a method of refreshing a memory are described. The method includes allowing an external system to control refreshing operations within the memory. The memory may generate a refresh request signal and transmit the refresh request signal to the external system. When the external system finds an available time to process the refresh request, the external system acknowledges the refresh request and transmits a refresh acknowledge signal to the memory. The memory may also comprise a page register for reading and rewriting a data state back to the memory. The page register may comprise latches in lieu of supplemental non-volatile storage elements, thereby conserving real estate within the memory.

Riekels, James E. (New Hope, MN); Schlesinger, Samuel (Aventura, FL)

2008-11-04T23:59:59.000Z

232

Structural Thermomechanical Models for Shape Memory Alloy Components  

E-Print Network [OSTI]

Thermally responsive shape memory alloys (SMA) demonstrate interesting properties like shape memory effect (SME) and superelasticity (SE). SMA components in the form of wires, springs and beams typically exhibit complex, nonlinear hysteretic...

Rao, Ashwin

2014-04-18T23:59:59.000Z

233

Early remodeling of the neocortex upon episodic memory encoding  

E-Print Network [OSTI]

Understanding the mechanisms by which long-term memories are formed and stored in the brain represents a central aim of neuroscience. Prevailing theory suggests that long-term memory encoding involves early plasticity ...

Ericsson, M.

234

Paging memory from random access memory to backing storage in a parallel computer  

DOE Patents [OSTI]

Paging memory from random access memory (`RAM`) to backing storage in a parallel computer that includes a plurality of compute nodes, including: executing a data processing application on a virtual machine operating system in a virtual machine on a first compute node; providing, by a second compute node, backing storage for the contents of RAM on the first compute node; and swapping, by the virtual machine operating system in the virtual machine on the first compute node, a page of memory from RAM on the first compute node to the backing storage on the second compute node.

Archer, Charles J; Blocksome, Michael A; Inglett, Todd A; Ratterman, Joseph D; Smith, Brian E

2013-05-21T23:59:59.000Z

235

Shape memory behavior of ultrafine grained NiTi and TiNiPd shape memory alloys  

E-Print Network [OSTI]

The cyclic instability in shape memory characteristics of NiTi-based shape memory alloys (SMAs), such as transformation temperatures, transformation and irrecoverable strains and transformation hysteresis upon thermal and mechanical cycling limits...

Kockar, Benat

2009-05-15T23:59:59.000Z

236

The nature of the working memory system underlying language processing and its relationship to the long-term memory system  

E-Print Network [OSTI]

This thesis examines two questions concerning the working memory system underlying language processing: (1) To what extent is the working memory system underlying language processing domain-specific? and (2) What is the ...

Fedorenko, Evelina Georgievna

2007-01-01T23:59:59.000Z

237

Evaluating Memory Energy Efficiency in Parallel I/O Workloads  

E-Print Network [OSTI]

Evaluating Memory Energy Efficiency in Parallel I/O Workloads Jianhui Yue,Yifeng Zhu , Zhao Cai the ever- widening gap between disk and processor speeds, memory energy efficiency becomes an increasingly management policies heavily influence the overall memory energy efficiency. In partic- ular, under the same

Zhu, Yifeng

238

GENETIC HEURISTICS FOR REDUCING MEMORY ENERGY CONSUMPTION IN EMBEDDED SYSTEMS  

E-Print Network [OSTI]

GENETIC HEURISTICS FOR REDUCING MEMORY ENERGY CONSUMPTION IN EMBEDDED SYSTEMS Maha IDRISSI AOUAD.loria.fr/zendra Keywords: Energy consumption reduction, Genetic heuristics, memory allocation management, optimizations on heuristic methods for SPMs careful management in order to reduce memory energy consumption. We propose

Schott, René - Institut de Mathématiques �lie Cartan, Université Henri Poincaré

239

An implementation of SISAL for distributed-memory architectures  

SciTech Connect (OSTI)

This thesis describes a new implementation of the implicitly parallel functional programming language SISAL, for massively parallel processor supercomputers. The Optimizing SISAL Compiler (OSC), developed at Lawrence Livermore National Laboratory, was originally designed for shared-memory multiprocessor machines and has been adapted to distributed-memory architectures. OSC has been relatively portable between shared-memory architectures, because they are architecturally similar, and OSC generates portable C code. However, distributed-memory architectures are not standardized -- each has a different programming model. Distributed-memory SISAL depends on a layer of software that provides a portable, distributed, shared-memory abstraction. This layer is provided by Split-C, a dialect of the C programming language developed at U.C. Berkeley, which has demonstrated good performance on distributed-memory architectures. Split-C provides important capabilities for good performance: support for program-specific distributed data structures, and split-phase memory operations. Distributed data structures help achieve good memory locality, while split-phase memory operations help tolerate the longer communication latencies inherent in distributed-memory architectures. The distributed-memory SISAL compiler and run-time system takes advantage of these capabilities. The results of these efforts is a compiler that runs identically on the Thinking Machines Connection Machine (CM-5), and the Meiko Computing Surface (CS-2).

Beard, P.C.

1995-06-01T23:59:59.000Z

240

Direct match data flow memory for data driven computing  

DOE Patents [OSTI]

A data flow computer and method of computing is disclosed which utilizes a data driven processor node architecture. The apparatus in a preferred embodiment includes a plurality of First-In-First-Out (FIFO) registers, a plurality of related data flow memories, and a processor. The processor makes the necessary calculations and includes a control unit to generate signals to enable the appropriate FIFO register receiving the result. In a particular embodiment, there are three FIFO registers per node: an input FIFO register to receive input information form an outside source and provide it to the data flow memories; an output FIFO register to provide output information from the processor to an outside recipient; and an internal FIFO register to provide information from the processor back to the data flow memories. The data flow memories are comprised of four commonly addressed memories. A parameter memory holds the A and B parameters used in the calculations; an opcode memory holds the instruction; a target memory holds the output address; and a tag memory contains status bits for each parameter. One status bit indicates whether the corresponding parameter is in the parameter memory and one status bit to indicate whether the stored information in the corresponding data parameter is to be reused. The tag memory outputs a "fire" signal (signal R VALID) when all of the necessary information has been stored in the data flow memories, and thus when the instruction is ready to be fired to the processor.

Davidson, George S. (8516 San Francisco NE., Albuquerque, NM 87109); Grafe, Victor Gerald (1909 Saturn Ct. NE., Albuquerque, NM 87112)

1997-01-01T23:59:59.000Z

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


241

Direct match data flow memory for data driven computing  

DOE Patents [OSTI]

A data flow computer and method of computing is disclosed which utilizes a data driven processor node architecture. The apparatus in a preferred embodiment includes a plurality of First-In-First-Out (FIFO) registers, a plurality of related data flow memories, and a processor. The processor makes the necessary calculations and includes a control unit to generate signals to enable the appropriate FIFO register receiving the result. In a particular embodiment, there are three FIFO registers per node: an input FIFO register to receive input information form an outside source and provide it to the data flow memories; an output FIFO register to provide output information from the processor to an outside recipient; and an internal FIFO register to provide information from the processor back to the data flow memories. The data flow memories are comprised of four commonly addressed memories. A parameter memory holds the A and B parameters used in the calculations; an opcode memory holds the instruction; a target memory holds the output address; and a tag memory contains status bits for each parameter. One status bit indicates whether the corresponding parameter is in the parameter memory and one status bit to indicate whether the stored information in the corresponding data parameter is to be reused. The tag memory outputs a ``fire`` signal (signal R VALID) when all of the necessary information has been stored in the data flow memories, and thus when the instruction is ready to be fired to the processor. 11 figs.

Davidson, G.S.; Grafe, V.G.

1997-10-07T23:59:59.000Z

242

SECURITY REFRESH: PROTECTING PHASE-CHANGE MEMORY AGAINST  

E-Print Network [OSTI]

SOFTWARE. ......Given the grim prospect of technology scaling in flash memories and dynamic RAM (DRAM), designers are seeking alternative memory technologies to continue the prophecy of Moore's law for memories device totally useless in a matter of minutes because it has a faster ac- cess speed than flash

Lee, Hsien-Hsin "Sean"

243

Energy Efficient Proactive Thermal Management in Memory Subsystem  

E-Print Network [OSTI]

Energy Efficient Proactive Thermal Management in Memory Subsystem Raid Ayoub rayoub management of memory subsystem is challenging due to performance and thermal constraints. Big energy gains appreciable energy savings in memory sub-system and mini- mize thermal problems. We adopt the consolidation

Simunic, Tajana

244

Logical Error Rate Scaling of the Toric Code  

E-Print Network [OSTI]

To date, a great deal of attention has focused on characterizing the performance of quantum error correcting codes via their thresholds, the maximum correctable physical error rate for a given noise model and decoding strategy. Practical quantum computers will necessarily operate below these thresholds meaning that other performance indicators become important. In this work we consider the scaling of the logical error rate of the toric code and demonstrate how, in turn, this may be used to calculate a key performance indicator. We use a perfect matching decoding algorithm to find the scaling of the logical error rate and find two distinct operating regimes. The first regime admits a universal scaling analysis due to a mapping to a statistical physics model. The second regime characterizes the behavior in the limit of small physical error rate and can be understood by counting the error configurations leading to the failure of the decoder. We present a conjecture for the ranges of validity of these two regimes and use them to quantify the overhead -- the total number of physical qubits required to perform error correction.

Fern H. E. Watson; Sean D. Barrett

2014-09-26T23:59:59.000Z

245

Slope Error Measurement Tool for Solar Parabolic Trough Collectors: Preprint  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) has developed an optical measurement tool for parabolic solar collectors that measures the combined errors due to absorber misalignment and reflector slope error. The combined absorber alignment and reflector slope errors are measured using a digital camera to photograph the reflected image of the absorber in the collector. Previous work using the image of the reflection of the absorber finds the reflector slope errors from the reflection of the absorber and an independent measurement of the absorber location. The accuracy of the reflector slope error measurement is thus dependent on the accuracy of the absorber location measurement. By measuring the combined reflector-absorber errors, the uncertainty in the absorber location measurement is eliminated. The related performance merit, the intercept factor, depends on the combined effects of the absorber alignment and reflector slope errors. Measuring the combined effect provides a simpler measurement and a more accurate input to the intercept factor estimate. The minimal equipment and setup required for this measurement technique make it ideal for field measurements.

Stynes, J. K.; Ihas, B.

2012-04-01T23:59:59.000Z

246

Wind Power Forecasting Error Distributions: An International Comparison; Preprint  

SciTech Connect (OSTI)

Wind power forecasting is expected to be an important enabler for greater penetration of wind power into electricity systems. Because no wind forecasting system is perfect, a thorough understanding of the errors that do occur can be critical to system operation functions, such as the setting of operating reserve levels. This paper provides an international comparison of the distribution of wind power forecasting errors from operational systems, based on real forecast data. The paper concludes with an assessment of similarities and differences between the errors observed in different locations.

Hodge, B. M.; Lew, D.; Milligan, M.; Holttinen, H.; Sillanpaa, S.; Gomez-Lazaro, E.; Scharff, R.; Soder, L.; Larsen, X. G.; Giebel, G.; Flynn, D.; Dobschinski, J.

2012-09-01T23:59:59.000Z

247

Universal Framework for Quantum Error-Correcting Codes  

E-Print Network [OSTI]

We present a universal framework for quantum error-correcting codes, i.e., the one that applies for the most general quantum error-correcting codes. This framework is established on the group algebra, an algebraic notation for the nice error bases of quantum systems. The nicest thing about this framework is that we can characterize the properties of quantum codes by the properties of the group algebra. We show how it characterizes the properties of quantum codes as well as generates some new results about quantum codes.

Zhuo Li; Li-Juan Xing

2009-01-04T23:59:59.000Z

248

Teuchos C++ memory management classes, idioms, and related topics, the complete reference : a comprehensive strategy for safe and efficient memory management in C++ for high performance computing.  

SciTech Connect (OSTI)

The ubiquitous use of raw pointers in higher-level code is the primary cause of all memory usage problems and memory leaks in C++ programs. This paper describes what might be considered a radical approach to the problem which is to encapsulate the use of all raw pointers and all raw calls to new and delete in higher-level C++ code. Instead, a set of cooperating template classes developed in the Trilinos package Teuchos are used to encapsulate every use of raw C++ pointers in every use case where it appears in high-level code. Included in the set of memory management classes is the typical reference-counted smart pointer class similar to boost::shared ptr (and therefore C++0x std::shared ptr). However, what is missing in boost and the new standard library are non-reference counted classes for remaining use cases where raw C++ pointers would need to be used. These classes have a debug build mode where nearly all programmer errors are caught and gracefully reported at runtime. The default optimized build mode strips all runtime checks and allows the code to perform as efficiently as raw C++ pointers with reasonable usage. Also included is a novel approach for dealing with the circular references problem that imparts little extra overhead and is almost completely invisible to most of the code (unlike the boost and therefore C++0x approach). Rather than being a radical approach, encapsulating all raw C++ pointers is simply the logical progression of a trend in the C++ development and standards community that started with std::auto ptr and is continued (but not finished) with std::shared ptr in C++0x. Using the Teuchos reference-counted memory management classes allows one to remove unnecessary constraints in the use of objects by removing arbitrary lifetime ordering constraints which are a type of unnecessary coupling [23]. The code one writes with these classes will be more likely to be correct on first writing, will be less likely to contain silent (but deadly) memory usage errors, and will be much more robust to later refactoring and maintenance. The level of debug-mode runtime checking provided by the Teuchos memory management classes is stronger in many respects than what is provided by memory checking tools like Valgrind and Purify while being much less expensive. However, tools like Valgrind and Purify perform a number of types of checks (like usage of uninitialized memory) that makes these tools very valuable and therefore complement the Teuchos memory management debug-mode runtime checking. The Teuchos memory management classes and idioms largely address the technical issues in resolving the fragile built-in C++ memory management model (with the exception of circular references which has no easy solution but can be managed as discussed). All that remains is to teach these classes and idioms and expand their usage in C++ codes. The long-term viability of C++ as a usable and productive language depends on it. Otherwise, if C++ is no safer than C, then is the greater complexity of C++ worth what one gets as extra features? Given that C is smaller and easier to learn than C++ and since most programmers don't know object-orientation (or templates or X, Y, and Z features of C++) all that well anyway, then what really are most programmers getting extra out of C++ that would outweigh the extra complexity of C++ over C? C++ zealots will argue this point but the reality is that C++ popularity has peaked and is becoming less popular while the popularity of C has remained fairly stable over the last decade22. Idioms like are advocated in this paper can help to avert this trend but it will require wide community buy-in and a change in the way C++ is taught in order to have the greatest impact. To make these programs more secure, compiler vendors or static analysis tools (e.g. klocwork23) could implement a preprocessor-like language similar to OpenMP24 that would allow the programmer to declare (in comments) that certain blocks of code should be ''pointer-free'' or allow smaller blocks to be 'pointers allowed'. This would signific

Bartlett, Roscoe Ainsworth

2010-05-01T23:59:59.000Z

249

Exploring Phase Change Memory and 3D Die-Stacking for Power/Thermal Friendly, Fast and Durable Memory Architectures  

E-Print Network [OSTI]

Exploring Phase Change Memory and 3D Die-Stacking for Power/Thermal Friendly, Fast and Durable) as a promising candidate to achieve scalable, low power and thermal friendly memory system architecture leakages and retention time. DRAM-based main memory is also consuming an increasing proportion of the power

Kavi, Krishna

250

3, 16031627, 2006 long-memory  

E-Print Network [OSTI]

HESSD 3, 1603­1627, 2006 Detecting long-memory W. Wang et al. Title Page Abstract Introduction Discussion EGU Hydrol. Earth Syst. Sci. Discuss., 3, 1603­1627, 2006 www.hydrol-earth-syst-sci-discuss.net/3/1603 2006 ­ Published: 14 July 2006 Correspondence to: W. Wang (w.wang@126.com) 1603 #12;HESSD 3, 1603

Boyer, Edmond

251

Allegories of Modernity, Geographies of Memory  

E-Print Network [OSTI]

imaginary with mirror images and events. The postmodernist narrative of memory in these novels turns the time of the now into a time for the "past as to come," a time to detect the unrealized and unfulfilled possibilities of the past, through retellings...

Jeon, Seenhwa

2012-10-19T23:59:59.000Z

252

Memory in the system: trajectory-environment  

E-Print Network [OSTI]

In the paper the memory effect in the system consisting from a trajectory of process and an environment is considered. The environment is presented by scalar potential and noise. The evolution of system is interpreted as process of the continuous "measurement" of a trajectory by an environment and\\or on the contrary. In this sense the measured value is entropy-the information about embedding of the trajectory into configurations space. The concepts "measurement" and "interaction" are identified alike in quantum theory. Thus, the entropy evolution is not only the effect of dynamics, but also its cause, if it is possible to speak about causality in this case. It is shown, that such non-elastic interaction leads to occurrence of memory in the system. The reflex memory mechanism is realized as a real conformal dynamic metrics. The metastable event (attractor) is defined and time of its life is estimated. It is shown, that in the system there is a change of dynamic modes from spatial localization to random walk (fluctuation, relaxation). On scale of the attractors dynamics the memory is appearing as a semi-regular (in some information sense) drift of the image of fluctuations in a power spectrum of environment to absolute minimum. The latter properties (topological convergence) attract the attention to algorithmic aspect of a considered system.

Maxim Budaev

2007-08-10T23:59:59.000Z

253

Characterizing Flash Memory: Anomalies, Observations, and Applications  

E-Print Network [OSTI]

), and reliability of flash memory. In addition, we must understand how different usage patterns affect char- acteristics and show how we can use them to improve responsive- ness and energy consumption begun to make the transi- tion from embedded devices to laptops, desktops, and data cen- ters

Wang, Deli

254

From Shared Memory to Message Passing  

E-Print Network [OSTI]

memory, but pass messages along networks: ... but also smart grids... Smart grid with renewable energy? The node measuring the hottest temperature? Etc. - Election of a leader - Coloring the network (e.g., frequency spectrum allocation in wireless networks), computing independent sets, etc. Complexity evaluation

Schmid, Stefan

255

Protist Web Alert Memories of Times Past  

E-Print Network [OSTI]

Protist Web Alert Memories of Times Past The Euglenoid Project (http that the Euglenoids have always fascinated me and so did this site. Micro*scope Astrobiology Institute Web Site from reviewed this site in a previous Web Alert, but it has been revised and updated and so is worth another

Simpson, Larry

256

Memorial University of Newfoundland Diving Safety  

E-Print Network [OSTI]

.2 Maintenance and Inspections 17 9.3 Use of Diving Equipment 17 9.4 Equipment Procedures 18 9.5 Inspection PROCEDURES 20 12.1 Planning of Diving Operations 21 12.2 Adherence to Planned Depth Procedures 21 12 safety manual is designed to provide Memorial University scientific divers with standards and procedures

deYoung, Brad

257

Path Delay Test Through Memory Arrays  

E-Print Network [OSTI]

into a non-scan cell (including a memory cell) is propagated to a scan cell. The propagation of the captured value from non-scan cell to scan cell occurs during low-speed clock cycles. In this work, we assume that only one extra coda cycle is sufficient...

Pokharel, Punj

2013-07-29T23:59:59.000Z

258

Diagnosing multiplicative error by lensing magnification of type Ia supernovae  

E-Print Network [OSTI]

Weak lensing causes spatially coherent fluctuations in flux of type Ia supernovae (SNe Ia). This lensing magnification allows for weak lensing measurement independent of cosmic shear. It is free of shape measurement errors associated with cosmic shear and can therefore be used to diagnose and calibrate multiplicative error. Although this lensing magnification is difficult to measure accurately in auto correlation, its cross correlation with cosmic shear and galaxy distribution in overlapping area can be measured to significantly higher accuracy. Therefore these cross correlations can put useful constraint on multiplicative error, and the obtained constraint is free of cosmic variance in weak lensing field. We present two methods implementing this idea and estimate their performances. We find that, with $\\sim 1$ million SNe Ia that can be achieved by the proposed D2k survey with the LSST telescope (Zhan et al. 2008), multiplicative error of $\\sim 0.5\\%$ for source galaxies at $z_s\\sim 1$ can be detected and la...

Zhang, Pengjie

2015-01-01T23:59:59.000Z

259

YELLOW SEA ACOUSTIC UNCERTAINTY CAUSED BY HYDROGRAPHIC DATA ERROR  

E-Print Network [OSTI]

the littoral and blue waters. After a weapon platform has detected its targets, the sensors on torpedoes, bathymetry, bottom type, and sound speed profiles. Here, the effect of sound speed errors (i.e., hydrographic

Chu, Peter C.

260

Strontium-90 Error Discovered in Subcontract Laboratory Spreadsheet  

SciTech Connect (OSTI)

West Valley Demonstration Project health physicists and environment scientists discovered a series of errors in a subcontractor's spreadsheet being used to reduce data as part of their strontium-90 analytical process.

D. D. Brown A. S. Nagel

1999-07-31T23:59:59.000Z

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


261

Kinetic energy error in the NIMROD spheromak simulations Carl Sovinec  

E-Print Network [OSTI]

Kinetic energy error in the NIMROD spheromak simulations Carl Sovinec 10/25/00 Dmitri Ryutov at the ends (as in the spheromak simulations), it may lead to compression in a boundary layer.] The maximum

Sovinec, Carl

262

Error estimation and adaptive mesh refinement for aerodynamic flows  

E-Print Network [OSTI]

Error estimation and adaptive mesh refinement for aerodynamic flows Ralf Hartmann1 and Paul Houston2 1 Institute of Aerodynamics and Flow Technology DLR (German Aerospace Center) Lilienthalplatz 7

Hartmann, Ralf

263

An Approximation Algorithm for Constructing Error Detecting Prefix ...  

E-Print Network [OSTI]

Sep 2, 2006 ... 2-bit Hamming prefix code problem. Our algorithm spends O(n log3 n) time to calculate a 2-bit. Hamming prefix code with an additive error of at ...

2006-09-02T23:59:59.000Z

264

A Priori Error Estimates for Some Discontinuous Galerkin Immersed ...  

E-Print Network [OSTI]

estimate in a mesh-dependant energy norm is derived, and this error ... 0 (Th), integrate both sides on each element K ? Th, and apply the Green's formula to.

2015-01-12T23:59:59.000Z

265

Secured Pace Web Server with Collaboration and Error Logging Capabilities  

E-Print Network [OSTI]

: Secure Sockets Layer (SSL) using the Java Secure Socket Extension (JSSE) API, error logging............................................................................................ 8 Chapter 3 Secure Pace Web Server with SSL........................................................... 29 3.1 Introduction to SSL

Tao, Lixin

266

Sample covariance based estimation of Capon algorithm error probabilities  

E-Print Network [OSTI]

The method of interval estimation (MIE) provides a strategy for mean squared error (MSE) prediction of algorithm performance at low signal-to-noise ratios (SNR) below estimation threshold where asymptotic predictions fail. ...

Richmond, Christ D.

267

Statistical Error in Particle Simulations of Low Mach Number Flows  

E-Print Network [OSTI]

We present predictions for the statistical error due to finite sampling in the presence of thermal fluctuations in molecular simulation algorithms. Expressions for the fluid velocity, density and temperature are derived ...

Hadjiconstantinou, Nicolas G.

268

Wind Power Forecasting Error Distributions over Multiple Timescales: Preprint  

SciTech Connect (OSTI)

In this paper, we examine the shape of the persistence model error distribution for ten different wind plants in the ERCOT system over multiple timescales. Comparisons are made between the experimental distribution shape and that of the normal distribution.

Hodge, B. M.; Milligan, M.

2011-03-01T23:59:59.000Z

269

Servo control booster system for minimizing following error  

DOE Patents [OSTI]

A closed-loop feedback-controlled servo system is disclosed which reduces command-to-response error to the system's position feedback resolution least increment, .DELTA.S.sub.R, on a continuous real-time basis for all operating speeds. The servo system employs a second position feedback control loop on a by exception basis, when the command-to-response error .gtoreq..DELTA.S.sub.R, to produce precise position correction signals. When the command-to-response error is less than .DELTA.S.sub.R, control automatically reverts to conventional control means as the second position feedback control loop is disconnected, becoming transparent to conventional servo control means. By operating the second unique position feedback control loop used herein at the appropriate clocking rate, command-to-response error may be reduced to the position feedback resolution least increment. The present system may be utilized in combination with a tachometer loop for increased stability.

Wise, William L. (Mountain View, CA)

1985-01-01T23:59:59.000Z

270

Model Error Correction for Linear Methods in PET Neuroreceptor Measurements  

E-Print Network [OSTI]

Model Error Correction for Linear Methods in PET Neuroreceptor Measurements Hongbin Guo address: hguo1@asu.edu (Hongbin Guo) Preprint submitted to NeuroImage December 11, 2008 #12;reached. A new

Renaut, Rosemary

271

A Posteriori Error Estimation for - Department of Mathematics ...  

E-Print Network [OSTI]

Oct 19, 2013 ... the “correct” Hilbert space the true flux µ?1?×u lies in, to recover a ...... The error heat map shows that ZZ-patch recovery estimator leads.

Shuhao Cao supervised under Professor Zhiqiang Cai

2013-10-31T23:59:59.000Z

272

Quantum error correcting codes based on privacy amplification  

E-Print Network [OSTI]

Calderbank-Shor-Steane (CSS) quantum error-correcting codes are based on pairs of classical codes which are mutually dual containing. Explicit constructions of such codes for large blocklengths and with good error correcting properties are not easy to find. In this paper we propose a construction of CSS codes which combines a classical code with a two-universal hash function. We show, using the results of Renner and Koenig, that the communication rates of such codes approach the hashing bound on tensor powers of Pauli channels in the limit of large block-length. While the bit-flip errors can be decoded as efficiently as the classical code used, the problem of efficiently decoding the phase-flip errors remains open.

Zhicheng Luo

2008-08-10T23:59:59.000Z

273

Rateless and rateless unequal error protection codes for Gaussian channels  

E-Print Network [OSTI]

In this thesis we examine two different rateless codes and create a rateless unequal error protection code, all for the additive white Gaussian noise (AWGN) channel. The two rateless codes are examined through both analysis ...

Boyle, Kevin P. (Kevin Patrick)

2007-01-01T23:59:59.000Z

274

Systematic errors in current quantum state tomography tools  

E-Print Network [OSTI]

Common tools for obtaining physical density matrices in experimental quantum state tomography are shown here to cause systematic errors. For example, using maximum likelihood or least squares optimization for state reconstruction, we observe a systematic underestimation of the fidelity and an overestimation of entanglement. A solution for this problem can be achieved by a linear evaluation of the data yielding reliable and computational simple bounds including error bars.

Christian Schwemmer; Lukas Knips; Daniel Richart; Tobias Moroder; Matthias Kleinmann; Otfried Gühne; Harald Weinfurter

2014-07-22T23:59:59.000Z

275

An error correcting procedure for imperfect supervised, nonparametric classification  

E-Print Network [OSTI]

AN ERROR CORRECTING PROCEDJJRE FOR IMPERFECTI, Y SUPERVISED, NONPARAMETRIC CLASSIFICATION A Thesis by DENNIS RAY FERRELL Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirement for the degree...) (Head f Depart en ) (Member) (Member) PE y (Memb ei) (Member) August 1973 ABSTRACT An Error Correcting Procedure For Imperfectly Supervised, Nonparametric Classification (August 1973) Dennis Ray Ferrell, B. S. , I, omar University Directed by...

Ferrell, Dennis Ray

2012-06-07T23:59:59.000Z

276

Using doppler radar images to estimate aircraft navigational heading error  

DOE Patents [OSTI]

A yaw angle error of a motion measurement system carried on an aircraft for navigation is estimated from Doppler radar images captured using the aircraft. At least two radar pulses aimed at respectively different physical locations in a targeted area are transmitted from a radar antenna carried on the aircraft. At least two Doppler radar images that respectively correspond to the at least two transmitted radar pulses are produced. These images are used to produce an estimate of the yaw angle error.

Doerry, Armin W. (Albuquerque, NM); Jordan, Jay D. (Albuquerque, NM); Kim, Theodore J. (Albuquerque, NM)

2012-07-03T23:59:59.000Z

277

Hard Data on Soft Errors: A Large-Scale Assessment of Real-World Error Rates in GPGPU  

E-Print Network [OSTI]

-GPGPU hardware in a controlled environment found no errors. However, our survey on Folding@home finds that carried out on over 50,000 GPUs on the Folding@home distributed computing network. MemtestG80

Pratt, Vaughan

278

Error Monitoring: A Learning Strategy for Improving Academic Performance of LD Adolescents  

E-Print Network [OSTI]

Error monitoring, a learning strategy for detecting and correcting errors in written products, was taught to nine learning disabled adolescents. Students could detect and correct more errors after they received training ...

Schumaker, Jean B.; Deshler, Donald D.; Nolan, Susan; Clark, Frances L.; Alley, Gordon R.; Warner, Michael M.

1981-04-01T23:59:59.000Z

279

Assessing the Impact of Differential Genotyping Errors on Rare Variant Tests of Association  

E-Print Network [OSTI]

Genotyping errors are well-known to impact the power and type I error rate in single marker tests of association. Genotyping errors that happen according to the same process in cases and controls are known as non-differential ...

Fast, Shannon Marie

280

Estimation of the error for small-sample optimal binary filter design using prior knowledge  

E-Print Network [OSTI]

Optimal binary filters estimate an unobserved ideal quantity from observed quantities. Optimality is with respect to some error criterion, which is usually mean absolute error MAE (or equivalently mean square error) for the binary values. Both...

Sabbagh, David L

1999-01-01T23:59:59.000Z

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


281

Quantum Memory with a controlled homogeneous splitting  

E-Print Network [OSTI]

We propose a quantum memory protocol where a input light field can be stored onto and released from a single ground state atomic ensemble by controlling dynamically the strength of an external static and homogeneous field. The technique relies on the adiabatic following of a polaritonic excitation onto a state for which the forward collective radiative emission is forbidden. The resemblance with the archetypal Electromagnetically-Induced-Transparency (EIT) is only formal because no ground state coherence based slow-light propagation is considered here. As compared to the other grand category of protocols derived from the photon-echo technique, our approach only involves a homogeneous static field. We discuss two physical situations where the effect can be observed, and show that in the limit where the excited state lifetime is longer than the storage time, the protocols are perfectly efficient and noise-free. We compare the technique to other quantum memories, and propose atomic systems where the experiment c...

Hétet, G; Chaneličre, T

2013-01-01T23:59:59.000Z

282

SHEAN (Simplified Human Error Analysis code) and automated THERP  

SciTech Connect (OSTI)

One of the most widely used human error analysis tools is THERP (Technique for Human Error Rate Prediction). Unfortunately, this tool has disadvantages. The Nuclear Regulatory Commission, realizing these drawbacks, commissioned Dr. Swain, the author of THERP, to create a simpler, more consistent tool for deriving human error rates. That effort produced the Accident Sequence Evaluation Program Human Reliability Analysis Procedure (ASEP), which is more conservative than THERP, but a valuable screening tool. ASEP involves answering simple questions about the scenario in question, and then looking up the appropriate human error rate in the indicated table (THERP also uses look-up tables, but four times as many). The advantages of ASEP are that human factors expertise is not required, and the training to use the method is minimal. Although not originally envisioned by Dr. Swain, the ASEP approach actually begs to be computerized. That WINCO did, calling the code SHEAN, for Simplified Human Error ANalysis. The code was done in TURBO Basic for IBM or IBM-compatible MS-DOS, for fast execution. WINCO is now in the process of comparing this code against THERP for various scenarios. This report provides a discussion of SHEAN.

Wilson, J.R.

1993-06-01T23:59:59.000Z

283

T-719:Apache mod_proxy_ajp HTTP Processing Error Lets Remote...  

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

719:Apache modproxyajp HTTP Processing Error Lets Remote Users Deny Service T-719:Apache modproxyajp HTTP Processing Error Lets Remote Users Deny Service September 16, 2011 -...

284

E-Print Network 3.0 - achieved classification error Sample Search...  

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

classifier design, and error estimation, which together form a microarray classification pipeline... error rate, reflects how well the classification rule can approximate the...

285

Mercury, to put it plainly, is bad stuff. In people, it causes exhaustion, headaches, memory loss, even brain damage; in birds it appears to have similar nervous system impacts and can harm their eggs; in the environment, there's almost no way to get rid  

E-Print Network [OSTI]

Mercury, to put it plainly, is bad stuff. In people, it causes exhaustion, headaches, memory loss; in the environment, there's almost no way to get rid of it. Mercury in the San Francisco Bay is especially sinister with for cleaning up our bay and mitigating past errors, often make mercury levels worse. But why that is, where it

286

Development of an integrated system for estimating human error probabilities  

SciTech Connect (OSTI)

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). This project had as its main objective the development of a Human Reliability Analysis (HRA), knowledge-based expert system that would provide probabilistic estimates for potential human errors within various risk assessments, safety analysis reports, and hazard assessments. HRA identifies where human errors are most likely, estimates the error rate for individual tasks, and highlights the most beneficial areas for system improvements. This project accomplished three major tasks. First, several prominent HRA techniques and associated databases were collected and translated into an electronic format. Next, the project started a knowledge engineering phase where the expertise, i.e., the procedural rules and data, were extracted from those techniques and compiled into various modules. Finally, these modules, rules, and data were combined into a nearly complete HRA expert system.

Auflick, J.L.; Hahn, H.A.; Morzinski, J.A.

1998-12-01T23:59:59.000Z

287

Full protection of superconducting qubit systems from coupling errors  

E-Print Network [OSTI]

Solid state qubits realized in superconducting circuits are potentially extremely scalable. However, strong decoherence may be transferred to the qubits by various elements of the circuits that couple individual qubits, particularly when coupling is implemented over long distances. We propose here an encoding that provides full protection against errors originating from these coupling elements, for a chain of superconducting qubits with a nearest neighbor anisotropic XY-interaction. The encoding is also seen to provide partial protection against errors deriving from general electronic noise.

M. J. Storcz; J. Vala; K. R. Brown; J. Kempe; F. K. Wilhelm; K. B. Whaley

2005-08-09T23:59:59.000Z

288

Error estimates and specification parameters for functional renormalization  

SciTech Connect (OSTI)

We present a strategy for estimating the error of truncated functional flow equations. While the basic functional renormalization group equation is exact, approximated solutions by means of truncations do not only depend on the choice of the retained information, but also on the precise definition of the truncation. Therefore, results depend on specification parameters that can be used to quantify the error of a given truncation. We demonstrate this for the BCS–BEC crossover in ultracold atoms. Within a simple truncation the precise definition of the frequency dependence of the truncated propagator affects the results, indicating a shortcoming of the choice of a frequency independent cutoff function.

Schnoerr, David [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)] [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany); Boettcher, Igor, E-mail: I.Boettcher@thphys.uni-heidelberg.de [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)] [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany); Pawlowski, Jan M. [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany) [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany); ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung mbH, D-64291 Darmstadt (Germany); Wetterich, Christof [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)] [Institute for Theoretical Physics, University of Heidelberg, D-69120 Heidelberg (Germany)

2013-07-15T23:59:59.000Z

289

JLab SRF Cavity Fabrication Errors, Consequences and Lessons Learned  

SciTech Connect (OSTI)

Today, elliptical superconducting RF (SRF) cavities are preferably made from deep-drawn niobium sheets as pursued at Jefferson Laboratory (JLab). The fabrication of a cavity incorporates various cavity cell machining, trimming and electron beam welding (EBW) steps as well as surface chemistry that add to forming errors creating geometrical deviations of the cavity shape from its design. An analysis of in-house built cavities over the last years revealed significant errors in cavity production. Past fabrication flaws are described and lessons learned applied successfully to the most recent in-house series production of multi-cell cavities.

Frank Marhauser

2011-09-01T23:59:59.000Z

290

Fitting Pulsar Wind Tori. II. Error Analysis and Applications  

E-Print Network [OSTI]

We have applied the torus fitting procedure described in Ng & Romani (2004) to PWNe observations in the Chandra data archive. This study provides quantitative measurement of the PWN geometry and we characterize the uncertainties in the fits, with statistical errors coming from the fit uncertainties and systematic errors estimated by varying the assumed fitting model. The symmetry axis $\\Psi$ of the PWN are generally well determined, and highly model-independent. We often derive a robust value for the spin inclination $\\zeta$. We briefly discuss the utility of these results in comparison with new radio and high energy pulse measurements

C. -Y. Ng; Roger W. Romani

2007-10-23T23:59:59.000Z

291

Laser Phase Errors in Seeded Free Electron Lasers  

SciTech Connect (OSTI)

Harmonic seeding of free electron lasers has attracted significant attention as a method for producing transform-limited pulses in the soft x-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality and impede production of transform-limited pulses. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.

Ratner, D.; Fry, A.; Stupakov, G.; White, W.; /SLAC

2012-04-17T23:59:59.000Z

292

Fitting Pulsar Wind Tori. II. Error Analysis and Applications  

E-Print Network [OSTI]

We have applied the torus fitting procedure described in Ng & Romani (2004) to PWNe observations in the Chandra data archive. This study provides quantitative measurement of the PWN geometry and we characterize the uncertainties in the fits, with statistical errors coming from the fit uncertainties and systematic errors estimated by varying the assumed fitting model. The symmetry axis $\\Psi$ of the PWN are generally well determined, and highly model-independent. We often derive a robust value for the spin inclination $\\zeta$. We briefly discuss the utility of these results in comparison with new radio and high energy pulse measurements

Ng, C -Y

2007-01-01T23:59:59.000Z

293

Quantum error correcting codes and 4-dimensional arithmetic hyperbolic manifolds  

SciTech Connect (OSTI)

Using 4-dimensional arithmetic hyperbolic manifolds, we construct some new homological quantum error correcting codes. They are low density parity check codes with linear rate and distance n{sup ?}. Their rate is evaluated via Euler characteristic arguments and their distance using Z{sub 2}-systolic geometry. This construction answers a question of Zémor [“On Cayley graphs, surface codes, and the limits of homological coding for quantum error correction,” in Proceedings of Second International Workshop on Coding and Cryptology (IWCC), Lecture Notes in Computer Science Vol. 5557 (2009), pp. 259–273], who asked whether homological codes with such parameters could exist at all.

Guth, Larry, E-mail: lguth@math.mit.edu [Department of Mathematics, MIT, Cambridge, Massachusetts 02139 (United States); Lubotzky, Alexander, E-mail: alex.lubotzky@mail.huji.ac.il [Institute of Mathematics, Hebrew University, Jerusalem 91904 (Israel)

2014-08-15T23:59:59.000Z

294

Debugging Fortran on a shared memory machine  

SciTech Connect (OSTI)

Debugging on a parallel processor is more difficult than debugging on a serial machine because errors in a parallel program may introduce nondeterminism. The approach to parallel debugging presented here attempts to reduce the problem of debugging on a parallel machine to that of debugging on a serial machine by automatically detecting nondeterminism. 20 refs., 6 figs.

Allen, T.R.; Padua, D.A.

1987-01-01T23:59:59.000Z

295

auditory working memory: Topics by E-print Network  

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

requires not only attention Sturm, Alexandra Noelle 2013-01-01 9 Working Memory and Dyslexia CiteSeer Summary: Recent research has demonstrated that dyslexic children suffer...

296

Institute of Computer Science A modified limited-memory BNS ...  

E-Print Network [OSTI]

Institute of Computer Science. Academy of Sciences of the Czech Republic. A modified limited-memory BNS method for unconstrained minimization based on ...

2014-03-12T23:59:59.000Z

297

Recommendation 196: Alternatives to Memorialize the K-25 Building  

Broader source: Energy.gov [DOE]

The ORSSAB Recommends to DOE Alternatives to Memorialize the K-25 Building at East Tennessee Technology Park and Manhattan Project Exhibits in Oak Ridge, Tennessee.

298

Life-cycle assessment of NAND flash memory  

E-Print Network [OSTI]

OF SSD VS . HDD Primary energy consumption MJ 96 GB ?ashpaired trends, primary energy consumption per gigabyte (GB)have been Fig. 2. Primary energy consumption per memory

Boyd, Sarah; Horvath, A; Dornfeld, David

2010-01-01T23:59:59.000Z

299

Building Green in Greensburg: Kiowa County Memorial Hospital  

Office of Energy Efficiency and Renewable Energy (EERE)

This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing Kiowa County Memorial Hospital building in Greensburg, Kansas.

300

aversive memory recall: Topics by E-print Network  

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

Inc. All rights reserved Boahen, Kwabena 119 Memory Distortion in People Reporting Abduction by Aliens Susan A. Clancy, Richard J. McNally, Biology and Medicine Websites...

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


301

Computational Thermodynamics of CoNiGa High Temperature Shape Memory Alloys  

E-Print Network [OSTI]

Shape Memory Alloys (SMAs) are advanced materials with interesting properties such as pseudoelasticity (PE) and the shape memory effect (SME). Recently, the CoNiGa system has emerged as the basis for very promising High Temperature Shape Memory...

Chari, Arpita

2012-10-19T23:59:59.000Z

302

Altered gene regulation and synaptic morphology in Drosophila learning and memory mutants  

E-Print Network [OSTI]

Genetic studies in Drosophila have revealed two separable long-term memory pathways defined as anesthesia-resistant memory (ARM) and long-lasting long-term memory (LLTM). ARM is disrupted in radish (rsh) mutants, whereas ...

Guan, Zhuo

303

Considering Workload Input Variations in Error Coverage Estimation  

E-Print Network [OSTI]

different parts of the workload code to be executed different number of times. By using the results from in the workload input when estimating error detection coverage using fault injection are investigated. Results sequence based on results from fault injection experiments with another input sequence is presented

Karlsson, Johan

304

Stateful Testing: Finding More Errors in Code and Contracts  

E-Print Network [OSTI]

. The generated test cases are designed to violate the dynamically inferred contracts (invariants) characterizing the existing test suite. As a consequence, they are in a good position to detect new faults, and alsoStateful Testing: Finding More Errors in Code and Contracts Yi Wei · Hannes Roth · Carlo A. Furia

Meyer, Bertrand

305

Error magnitude in the conservation of energy in the  

E-Print Network [OSTI]

Appendix A Error magnitude in the conservation of energy in the approximate melt segregation scheme A.1 Conservation of energy The approximate melt segregation used in the thermochemical convection models of chap- ters 6 and 7 has an impact on the conservation of energy, because although 'segregated

van Thienen, Peter

306

The contour method cutting assumption: error minimization and correction  

SciTech Connect (OSTI)

The recently developed contour method can measure 2-D, cross-sectional residual-stress map. A part is cut in two using a precise and low-stress cutting technique such as electric discharge machining. The contours of the new surfaces created by the cut, which will not be flat if residual stresses are relaxed by the cutting, are then measured and used to calculate the original residual stresses. The precise nature of the assumption about the cut is presented theoretically and is evaluated experimentally. Simply assuming a flat cut is overly restrictive and misleading. The critical assumption is that the width of the cut, when measured in the original, undeformed configuration of the body is constant. Stresses at the cut tip during cutting cause the material to deform, which causes errors. The effect of such cutting errors on the measured stresses is presented. The important parameters are quantified. Experimental procedures for minimizing these errors are presented. An iterative finite element procedure to correct for the errors is also presented. The correction procedure is demonstrated on experimental data from a steel beam that was plastically bent to put in a known profile of residual stresses.

Prime, Michael B [Los Alamos National Laboratory; Kastengren, Alan L [ANL

2010-01-01T23:59:59.000Z

307

MULTITARGET ERROR ESTIMATION AND ADAPTIVITY IN AERODYNAMIC FLOW SIMULATIONS  

E-Print Network [OSTI]

MULTI­TARGET ERROR ESTIMATION AND ADAPTIVITY IN AERODYNAMIC FLOW SIMULATIONS RALF HARTMANN # Abstract. Important quantities in aerodynamic flow simulations are the aerodynamic force coe subject classifications. 65N12,65N15,65N30 1. Introduction. In aerodynamic computations like compressible

Hartmann, Ralf

308

Error estimation and adaptive mesh refinement for aerodynamic flows  

E-Print Network [OSTI]

Error estimation and adaptive mesh refinement for aerodynamic flows Ralf Hartmann, Joachim Held-oriented mesh refinement for single and multiple aerodynamic force coefficients as well as residual-based mesh refinement applied to various three-dimensional lam- inar and turbulent aerodynamic test cases defined

Hartmann, Ralf

309

MULTITARGET ERROR ESTIMATION AND ADAPTIVITY IN AERODYNAMIC FLOW SIMULATIONS  

E-Print Network [OSTI]

MULTITARGET ERROR ESTIMATION AND ADAPTIVITY IN AERODYNAMIC FLOW SIMULATIONS RALF HARTMANN Abstract. Important quantities in aerodynamic flow simulations are the aerodynamic force coefficients including Navier-Stokes equations AMS subject classifications. 65N12,65N15,65N30 1. Introduction. In aerodynamic

Hartmann, Ralf

310

Analysis of possible systematic errors in the Oslo method  

SciTech Connect (OSTI)

In this work, we have reviewed the Oslo method, which enables the simultaneous extraction of the level density and {gamma}-ray transmission coefficient from a set of particle-{gamma} coincidence data. Possible errors and uncertainties have been investigated. Typical data sets from various mass regions as well as simulated data have been tested against the assumptions behind the data analysis.

Larsen, A. C.; Guttormsen, M.; Buerger, A.; Goergen, A.; Nyhus, H. T.; Rekstad, J.; Siem, S.; Toft, H. K.; Tveten, G. M.; Wikan, K. [Department of Physics, University of Oslo, N-0316 Oslo (Norway); Krticka, M. [Institute of Particle and Nuclear Physics, Charles University, Prague (Czech Republic); Betak, E. [Institute of Physics SAS, 84511 Bratislava (Slovakia); Faculty of Philosophy and Science, Silesian University, 74601 Opava (Czech Republic); Schiller, A.; Voinov, A. V. [Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701 (United States)

2011-03-15T23:59:59.000Z

311

Multilayer Perceptron Error Surfaces: Visualization, Structure and Modelling  

E-Print Network [OSTI]

. This is commonly formulated as a multivariate non­linear optimization problem over a very high­dimensional space of analysis are not well­suited to this problem. Visualizing and describ­ ing the error surface are also three related methods. Firstly, Principal Component Analysis (PCA) is proposed as a method

Gallagher, Marcus

312

Multi-layer Perceptron Error Surfaces: Visualization, Structure and Modelling  

E-Print Network [OSTI]

. This is commonly formulated as a multivariate non-linear optimization problem over a very high-dimensional space of analysis are not well-suited to this problem. Visualizing and describ- ing the error surface are also three related methods. Firstly, Principal Component Analysis (PCA) is proposed as a method

Gallagher, Marcus

313

Analysis of possible systematic errors in the Oslo method  

E-Print Network [OSTI]

In this work, we have reviewed the Oslo method, which enables the simultaneous extraction of level density and gamma-ray transmission coefficient from a set of particle-gamma coincidence data. Possible errors and uncertainties have been investigated. Typical data sets from various mass regions as well as simulated data have been tested against the assumptions behind the data analysis.

A. C. Larsen; M. Guttormsen; M. Krticka; E. Betak; A. Bürger; A. Görgen; H. T. Nyhus; J. Rekstad; A. Schiller; S. Siem; H. K. Toft; G. M. Tveten; A. V. Voinov; K. Wikan

2012-11-27T23:59:59.000Z

314

Error Control Based Model Reduction for Parameter Optimization of Elliptic  

E-Print Network [OSTI]

of technical devices that rely on multiscale processes, such as fuel cells or batteries. As the solutionError Control Based Model Reduction for Parameter Optimization of Elliptic Homogenization Problems optimization of elliptic multiscale problems with macroscopic optimization functionals and microscopic material

315

Verification of unfold error estimates in the unfold operator code  

SciTech Connect (OSTI)

Spectral unfolding is an inverse mathematical operation that attempts to obtain spectral source information from a set of response functions and data measurements. Several unfold algorithms have appeared over the past 30 years; among them is the unfold operator (UFO) code written at Sandia National Laboratories. In addition to an unfolded spectrum, the UFO code also estimates the unfold uncertainty (error) induced by estimated random uncertainties in the data. In UFO the unfold uncertainty is obtained from the error matrix. This built-in estimate has now been compared to error estimates obtained by running the code in a Monte Carlo fashion with prescribed data distributions (Gaussian deviates). In the test problem studied, data were simulated from an arbitrarily chosen blackbody spectrum (10 keV) and a set of overlapping response functions. The data were assumed to have an imprecision of 5{percent} (standard deviation). One hundred random data sets were generated. The built-in estimate of unfold uncertainty agreed with the Monte Carlo estimate to within the statistical resolution of this relatively small sample size (95{percent} confidence level). A possible 10{percent} bias between the two methods was unresolved. The Monte Carlo technique is also useful in underdetermined problems, for which the error matrix method does not apply. UFO has been applied to the diagnosis of low energy x rays emitted by Z-pinch and ion-beam driven hohlraums. {copyright} {ital 1997 American Institute of Physics.}

Fehl, D.L.; Biggs, F. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

1997-01-01T23:59:59.000Z

316

Achievable Error Exponents for the Private Fingerprinting Game  

E-Print Network [OSTI]

Achievable Error Exponents for the Private Fingerprinting Game Anelia Somekh-Baruch and Neri Merhav a forgery of the data while aiming at erasing the fingerprints in order not to be detected. Their action have presented and analyzed a game-theoretic model of private2 fingerprinting systems in the presence

Merhav, Neri

317

Error suppression in Hamiltonian based quantum computation using energy penalties  

E-Print Network [OSTI]

We consider the use of quantum error detecting codes, together with energy penalties against leaving the codespace, as a method for suppressing environmentally induced errors in Hamiltonian based quantum computation. This method was introduced in [1] in the context of quantum adiabatic computation, but we consider it more generally. Specifically, we consider a computational Hamiltonian, which has been encoded using the logical qubits of a single-qubit error detecting code, coupled to an environment of qubits by interaction terms that act one-locally on the system. Energy penalty terms are added that penalize states outside of the codespace. We prove that in the limit of infinitely large penalties, one-local errors are completely suppressed, and we derive some bounds for the finite penalty case. Our proof technique involves exact integration of the Schrodinger equation, making no use of master equations or their assumptions. We perform long time numerical simulations on a small (one logical qubit) computational system coupled to an environment and the results suggest that the energy penalty method achieves even greater protection than our bounds indicate.

Adam D. Bookatz; Edward Farhi; Leo Zhou

2014-07-06T23:59:59.000Z

318

RESOLVE Upgrades for on Line Lattice Error Analysis  

SciTech Connect (OSTI)

We have increased the speed and versatility of the orbit analysis process by adding a command file, or 'script' language, to RESOLVE. This command file feature enables us to automate data analysis procedures to detect lattice errors. We describe the RESOLVE command file and present examples of practical applications.

Lee, M.; Corbett, J.; White, G.; /SLAC; Zambre, Y.; /Unlisted

2011-08-25T23:59:59.000Z

319

Stereoscopic Light Stripe Scanning: Interference Rejection, Error Minimization and Calibration  

E-Print Network [OSTI]

This paper addresses the problem of rejecting interfer- ence due to secondary specular reflections, cross structure, acquisition delay, lack of error recovery, and incorrect modelling of measurement noise. We cause secondary reflections, edges and textures may have a stripe-like appearance, and cross-talk can

320

Effects of errors in the solar radius on helioseismic inferences  

E-Print Network [OSTI]

Frequencies of intermediate-degree f-modes of the Sun seem to indicate that the solar radius is smaller than what is normally used in constructing solar models. We investigate the possible consequences of an error in radius on results for solar structure obtained using helioseismic inversions. It is shown that solar sound speed will be overestimated if oscillation frequencies are inverted using reference models with a larger radius. Using solar models with radius of 695.78 Mm and new data sets, the base of the solar convection zone is estimated to be at radial distance of $0.7135\\pm 0.0005$ of the solar radius. The helium abundance in the convection zone as determined using models with OPAL equation of state is $0.248\\pm 0.001$, where the errors reflect the estimated systematic errors in the calculation, the statistical errors being much smaller. Assuming that the OPAL opacities used in the construction of the solar models are correct, the surface $Z/X$ is estimated to be $0.0245\\pm 0.0006$.

Sarbani Basu

1997-12-09T23:59:59.000Z

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


321

Error field and magnetic diagnostic modeling for W7-X  

SciTech Connect (OSTI)

The prediction, detection, and compensation of error fields for the W7-X device will play a key role in achieving a high beta (? = 5%), steady state (30 minute pulse) operating regime utilizing the island divertor system [1]. Additionally, detection and control of the equilibrium magnetic structure in the scrape-off layer will be necessary in the long-pulse campaign as bootstrapcurrent evolution may result in poor edge magnetic structure [2]. An SVD analysis of the magnetic diagnostics set indicates an ability to measure the toroidal current and stored energy, while profile variations go undetected in the magnetic diagnostics. An additional set of magnetic diagnostics is proposed which improves the ability to constrain the equilibrium current and pressure profiles. However, even with the ability to accurately measure equilibrium parameters, the presence of error fields can modify both the plasma response and diverter magnetic field structures in unfavorable ways. Vacuum flux surface mapping experiments allow for direct measurement of these modifications to magnetic structure. The ability to conduct such an experiment is a unique feature of stellarators. The trim coils may then be used to forward model the effect of an applied n = 1 error field. This allows the determination of lower limits for the detection of error field amplitude and phase using flux surface mapping. *Research supported by the U.S. DOE under Contract No. DE-AC02-09CH11466 with Princeton University.

Lazerson, Sam A. [PPPL; Gates, David A. [PPPL; NEILSON, GEORGE H. [PPPL; OTTE, M.; Bozhenkov, S.; Pedersen, T. S.; GEIGER, J.; LORE, J.

2014-07-01T23:59:59.000Z

322

Designing Automation to Reduce Operator Errors Nancy G. Leveson  

E-Print Network [OSTI]

Designing Automation to Reduce Operator Errors Nancy G. Leveson Computer Science and Engineering University of Washington Everett Palmer NASA Ames Research Center Introduction Advanced automation has been of mode­related problems [SW95]. After studying accidents and incidents in the new, highly automated

Leveson, Nancy

323

MODELS FOR DIAGNOSING ROBOT ERROR SOURCES Louis J. Everett  

E-Print Network [OSTI]

of industrial robots and on some machine tools, calibration methods have significantly improved positionMODELS FOR DIAGNOSING ROBOT ERROR SOURCES Louis J. Everett Mechanical Engineering Texas A that the somewhat ad-hoc modelling methods used for robot calibration, although satisfactory for improving accu

Everett, Louis J.

324

Removing Systematic Errors from Rotating Shadowband Pyranometer Data Frank Vignola  

E-Print Network [OSTI]

Removing Systematic Errors from Rotating Shadowband Pyranometer Data Frank Vignola Solar Radiation irradiance be- cause they do not require manual adjustment of trackers. However, a RSP requires the use of solar cell based pyranometers which underestimate diffuse irradiance by 20- 30% under clear sky

Oregon, University of

325

Two infinite families of nonadditive quantum error-correcting codes  

E-Print Network [OSTI]

We construct explicitly two infinite families of genuine nonadditive 1-error correcting quantum codes and prove that their coding subspaces are 50% larger than those of the optimal stabilizer codes of the same parameters via the linear programming bound. All these nonadditive codes can be characterized by a stabilizer-like structure and thus their encoding circuits can be designed in a straightforward manner.

Sixia Yu; Qing Chen; C. H. Oh

2009-01-14T23:59:59.000Z

326

Threshold error rates for the toric and surface codes  

E-Print Network [OSTI]

The surface code scheme for quantum computation features a 2d array of nearest-neighbor coupled qubits yet claims a threshold error rate approaching 1% (NJoP 9:199, 2007). This result was obtained for the toric code, from which the surface code is derived, and surpasses all other known codes restricted to 2d nearest-neighbor architectures by several orders of magnitude. We describe in detail an error correction procedure for the toric and surface codes, which is based on polynomial-time graph matching techniques and is efficiently implementable as the classical feed-forward processing step in a real quantum computer. By direct simulation of this error correction scheme, we determine the threshold error rates for the two codes (differing only in their boundary conditions) for both ideal and non-ideal syndrome extraction scenarios. We verify that the toric code has an asymptotic threshold of p = 15.5% under ideal syndrome extraction, and p = 7.8 10^-3 for the non-ideal case, in agreement with prior work. Simulations of the surface code indicate that the threshold is close to that of the toric code.

D. S. Wang; A. G. Fowler; A. M. Stephens; L. C. L. Hollenberg

2009-05-05T23:59:59.000Z

327

Quantum Error Correction of Continuous Variable States against Gaussian Noise  

E-Print Network [OSTI]

We describe a continuous variable error correction protocol that can correct the Gaussian noise induced by linear loss on Gaussian states. The protocol can be implemented using linear optics and photon counting. We explore the theoretical bounds of the protocol as well as the expected performance given current knowledge and technology.

T. C. Ralph

2011-05-22T23:59:59.000Z

328

A Method for Treating Discretization Error in Nondeterministic Analysis  

SciTech Connect (OSTI)

A response surface methodology-based technique is presented for treating discretization error in non-deterministic analysis. The response surface, or metamodel, is estimated from computer experiments which vary both uncertain physical parameters and the fidelity of the computational mesh. The resultant metamodel is then used to propagate the variabilities in the continuous input parameters, while the mesh size is taken to zero, its asymptotic limit. With respect to mesh size, the metamodel is equivalent to Richardson extrapolation, in which solutions on coarser and finer meshes are used to estimate discretization error. The method is demonstrated on a one dimensional prismatic bar, in which uncertainty in the third vibration frequency is estimated by propagating variations in material modulus, density, and bar length. The results demonstrate the efficiency of the method for combining non-deterministic analysis with error estimation to obtain estimates of total simulation uncertainty. The results also show the relative sensitivity of failure estimates to solution bias errors in a reliability analysis, particularly when the physical variability of the system is low.

Alvin, K.F.

1999-01-27T23:59:59.000Z

329

Error Control of Iterative Linear Solvers for Integrated Groundwater Models  

E-Print Network [OSTI]

and presentation of GMRES performance benchmarking results. Introduction As the groundwater model infrastructureError Control of Iterative Linear Solvers for Integrated Groundwater Models by Matthew F. Dixon1 for integrated groundwater models, which are implicitly coupled to another model, such as surface water models

Bai, Zhaojun

330

Effects of Constrained Aging on the Shape Memory Response of Nickel Rich Niti Shape Memory Alloys  

E-Print Network [OSTI]

Ni50.6Ti49.4 single and Ni52Ti48 polycrystalline shape memory alloy samples were subjected to aging under a uniaxial stress, to form a single Ni4Ti3 precipitate variant and to investigate the effects of single versus multi-variant coherent...

Barrie, Fatmata Haja

2011-02-22T23:59:59.000Z

331

A-posteriori estimation and adaptive control of the error in the solution quantity of interest  

E-Print Network [OSTI]

-posteriori estimation and adaptive control of the error in the quantity of interest. The major tool for the estimation of the error in the desired quantity is the splitting of the error into two components: the near-field or local error, and the far-field or pollution...

Datta, Dibyendu Kumar, Dd 1973-

1997-01-01T23:59:59.000Z

332

Molecular mechanisms of memory in imprinting  

E-Print Network [OSTI]

an ess the chick (s In additi for study, r by the fact robiology o It is also a the recentl trolled, faci changes in or water for tive period animals tha A Fig. 1. Positio of section for mesopallium; vocalize ex which learn Imprinting with proce... . mulated evidence strongly indicates that formation of tion memory of imprinting involves a time-dependent ochemical processes in the IMM. Such processes are essed in the left side of this region. Changes in the right raining, though resembling events...

Solomonia, Revaz O.; McCabe, Brian J.

2014-10-02T23:59:59.000Z

333

Localized quantum walks as secured quantum memory  

E-Print Network [OSTI]

We show that a quantum walk process can be used to construct and secure quantum memory. More precisely, we show that a localized quantum walk with temporal disorder can be engineered to store the information of a single, unknown qubit on a compact position space and faithfully recover it on demand. Since the localization occurss with a finite spread in position space, the stored information of the qubit will be naturally secured from the simple eavesdropper. Our protocol can be adopted to any quantum system for which experimental control over quantum walk dynamics can be achieved.

C. M. Chandrashekar; Th. Busch

2015-04-21T23:59:59.000Z

334

Oil Price Trackers Inspired by Immune Memory  

E-Print Network [OSTI]

We outline initial concepts for an immune inspired algorithm to evaluate and predict oil price time series data. The proposed solution evolves a short term pool of trackers dynamically, with each member attempting to map trends and anticipate future price movements. Successful trackers feed into a long term memory pool that can generalise across repeating trend patterns. The resulting sequence of trackers, ordered in time, can be used as a forecasting tool. Examination of the pool of evolving trackers also provides valuable insight into the properties of the crude oil market.

Wilson, WIlliam; Aickelin, Uwe

2010-01-01T23:59:59.000Z

335

Memorial Gathering Pending for NERSC's Michael Welcome  

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),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubeyChallenge Melrose named topMemorial Gathering

336

Quantum computing with nearest neighbor interactions and error rates over 1%  

E-Print Network [OSTI]

Large-scale quantum computation will only be achieved if experimentally implementable quantum error correction procedures are devised that can tolerate experimentally achievable error rates. We describe a quantum error correction procedure that requires only a 2-D square lattice of qubits that can interact with their nearest neighbors, yet can tolerate quantum gate error rates over 1%. The precise maximum tolerable error rate depends on the error model, and we calculate values in the range 1.1--1.4% for various physically reasonable models. Even the lowest value represents the highest threshold error rate calculated to date in a geometrically constrained setting, and a 50% improvement over the previous record.

David S. Wang; Austin G. Fowler; Lloyd C. L. Hollenberg

2010-09-20T23:59:59.000Z

337

auditory-verbal working memory: Topics by E-print Network  

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

Memory 4 Percept Result of filtering Memphis, University of 4 Working Memory and Dyslexia CiteSeer Summary: Recent research has demonstrated that dyslexic children suffer...

338

E-Print Network 3.0 - avoidance memory role Sample Search Results  

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

by avoiding thrashing... on nodes with enough memory. This avoids thrashing at the cost of reduced utilization of memory... -level approach that avoided thrashing of an...

339

Gist Memory in Alzheimer's Disease: Evidence From Categorized Pictures Andrew E. Budson  

E-Print Network [OSTI]

Gist Memory in Alzheimer's Disease: Evidence From Categorized Pictures Andrew E. Budson Edith of items (gist memory; Reyna & Brainerd, 1995; Schacter, Norman, & Koutstaal, 1998). We have argued

Schacter, Daniel

340

MEMORY DESIGN AND EXPLORATION FOR LOW POWER, EMBEDDED SYSTEMS  

E-Print Network [OSTI]

by (i) applying memory optimizing transformations such as loop transformations, (ii) storing frequently transformations. In this paper, we describe a procedure for memory design and exploration for low power embedded optimizing transformations such as loop transformations. While there exists a large number of loop

Kambhampati, Subbarao

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


341

Data Representation for Efficient and Reliable Storage in Flash Memories  

E-Print Network [OSTI]

schemes are designed for already deployed low-power devices that use on-chip ash memory. Moreover, while devices at the scale of sensor nodes might switch to block-grained, large o -chip ash memory, RFID-scale platforms might not bene t from...

Wang, Yue

2013-05-02T23:59:59.000Z

342

Ubiquitous Memory Introspection Qin Zhao1,2  

E-Print Network [OSTI]

Center 4 Massachusetts Institute of Technology Abstract Modern memory systems play a critical role of a low cost, online, and accurate methodology for deriving fine- grained memory behavior profiles can delinquent load instruc- tions with an 88% rate of accuracy for applications with a relatively high number

Wong, Weng Fai

343

Stream and Memory Hierarchy Design for Multi-Purpose Accelerators  

E-Print Network [OSTI]

Stream and Memory Hierarchy Design for Multi-Purpose Accelerators Sylvain Girbal, Sami Yehia Hugues-purpose loop-based generated accelerators have emerged as an especially attractive accelerator option, with multiple streams, the memory behavior of such accelerators can become at least as complex

Boyer, Edmond

344

Forgotten, but Not Gone: Recovering Memories of Emotional Stories  

E-Print Network [OSTI]

FORGOTTEN, BUT NOT GONE: RECOVERING MEMORIES OF EMOTIONAL STORIES A Thesis by JUSTIN DEAN HANDY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 2011 Major Subject: Psychology Forgotten, but Not Gone: Recovering Memories of Emotional Stories Copyright 2011 Justin Dean Handy FORGOTTEN, BUT NOT GONE...

Handy, Justin Dean

2012-02-14T23:59:59.000Z

345

Memory Scaling: A Systems Architecture Perspective Carnegie Mellon University  

E-Print Network [OSTI]

@cmu.edu http://users.ece.cmu.edu/omutlu/ Abstract--The memory system is a fundamental performance and energy technology scaling challenges that make the maintenance and enhancement of its capacity, energy, whether they be server, embedded, desktop, mobile, sensor. Memory capacity, energy, cost, performance

346

ESSES 2003 2003, Carla Schlatter Ellis Power-Aware Memory  

E-Print Network [OSTI]

1 ESSES 2003© 2003, Carla Schlatter Ellis Power-Aware Memory Management 2ESSES 2003© 2003, Carla management · OS page allocation policies · Experimental results · Future work, open questions #12;2 3ESSES Allocation [ASPLOS00] ESSES 2003© 2003, Carla Schlatter Ellis Memory System Power Consumption · Laptop

Ellis, Carla

347

Business surveys modelling with Seasonal-Cyclical Long Memory models  

E-Print Network [OSTI]

Business surveys modelling with Seasonal-Cyclical Long Memory models Ferrara L. and Guégan D. 2nd business surveys released by the European Commission. We introduce an innovative way for modelling those linear models. Keywords: Euro area, nowcasting, business surveys, seasonal, long memory. JEL

Paris-Sud XI, Université de

348

2001 Special issue Associative memory in networks of spiking neurons  

E-Print Network [OSTI]

of the network dynamics. The memory is displayed rhythmically, coded by phase-locked bursts or regular spikes activity and trigger a phase-locked association event within one gamma period. Unlike as under tonic of ef®cient retrieval varying the memory load, the excitation/inhibition parameters, and background

Wennekers, Thomas

349

Optimizing Potential Information Transfer with Self-referential Memory  

E-Print Network [OSTI]

-theoretic design principle, intended to support an evolution of a memory structure fitting a specific selection computation; dis- tributed storage and transmission: e.g., neural networks and associative memory; search principles, underlying many recent developments. This is unsatisfactory not only from a methodological

Polani, Daniel

350

Pipelined Memory Controllers for DSP Applications Handling Unpredictable Data Accesses  

E-Print Network [OSTI]

Pipelined Memory Controllers for DSP Applications Handling Unpredictable Data Accesses Bertrand Le pipelined memory access controllers can be generated improving the pipeline access mode to RAM. We focus as unpredictable ones (dynamic address computations) in a pipeline way. 1 Introduction Actual researches

Paris-Sud XI, Université de

351

Rosebud: A Place for Interaction between Memory, Story, and Self  

E-Print Network [OSTI]

as part of the human­computer interaction. Ullmer & Ishii [55] make a comparison between levels of stories, memories, and identity. We describe the cognitive, social, and psychological aspects of one, identity, stuffed animals, tangible interfaces, memory, children, education. Scenario Susan, an eight year

Nehaniv, Chrystopher

352

Algorithms and Data Representations for Emerging Non-Volatile Memories  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii LIST OF FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii 1. INTRODUCTION... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Basic Concepts of Flash Memory and PCM . . . . . . . . . . . . . . . . 2 1.2 Data Reliability Challenges for Flash Memory and PCM . . . . . . . . . 8 1.3 Overview of Research Directions . . . . . . . . . . . . . . . . . . . . . . 10 2...

Li, Yue

2014-04-29T23:59:59.000Z

353

Comparison of Wind Power and Load Forecasting Error Distributions: Preprint  

SciTech Connect (OSTI)

The introduction of large amounts of variable and uncertain power sources, such as wind power, into the electricity grid presents a number of challenges for system operations. One issue involves the uncertainty associated with scheduling power that wind will supply in future timeframes. However, this is not an entirely new challenge; load is also variable and uncertain, and is strongly influenced by weather patterns. In this work we make a comparison between the day-ahead forecasting errors encountered in wind power forecasting and load forecasting. The study examines the distribution of errors from operational forecasting systems in two different Independent System Operator (ISO) regions for both wind power and load forecasts at the day-ahead timeframe. The day-ahead timescale is critical in power system operations because it serves the unit commitment function for slow-starting conventional generators.

Hodge, B. M.; Florita, A.; Orwig, K.; Lew, D.; Milligan, M.

2012-07-01T23:59:59.000Z

354

Efficient Semiparametric Estimators for Biological, Genetic, and Measurement Error Applications  

E-Print Network [OSTI]

) as pW,Y,Z(w, y, z; ?, ?1, ?2, ?3) which equals ? pW |X,Z(w|x, z)?1(x, z)?2{y ? m(x, z; ?), x, z}?3(z)dx, (2.1) where ? is the finite p-dimensional parameter of interest, ?1(x, z) ? pX|Z(x|z), ?2(#15;, x, z) ? p#15;|X,Z(#15;|x, z), and ?3(z) ? pZ(z...) are infinite dimensional nuisance parameters. Doing so, we see that pW,Y,Z , the RMM with measurement error, is tightly linked to the RMM without measurement error with probability density expressed as pX,Y,Z ? ?1(x, z)?2{y ? m(x, z; ?), x, z}?3(z). The lack...

Garcia, Tanya

2012-10-19T23:59:59.000Z

355

Method and system for reducing errors in vehicle weighing systems  

DOE Patents [OSTI]

A method and system (10, 23) for determining vehicle weight to a precision of <0.1%, uses a plurality of weight sensing elements (23), a computer (10) for reading in weighing data for a vehicle (25) and produces a dataset representing the total weight of a vehicle via programming (40-53) that is executable by the computer (10) for (a) providing a plurality of mode parameters that characterize each oscillatory mode in the data due to movement of the vehicle during weighing, (b) by determining the oscillatory mode at which there is a minimum error in the weighing data; (c) processing the weighing data to remove that dynamical oscillation from the weighing data; and (d) repeating steps (a)-(c) until the error in the set of weighing data is <0.1% in the vehicle weight.

Hively, Lee M. (Philadelphia, TN); Abercrombie, Robert K. (Knoxville, TN)

2010-08-24T23:59:59.000Z

356

Error message recording and reporting in the SLC control system  

SciTech Connect (OSTI)

Error or information messages that are signaled by control software either in the VAX host computer or the local microprocessor clusters are handled by a dedicated VAX process (PARANOIA). Messages are recorded on disk for further analysis and displayed at the appropriate console. Another VAX process (ERRLOG) can be used to sort, list and histogram various categories of messages. The functions performed by these processes and the algorithms used are discussed.

Spencer, N.; Bogart, J.; Phinney, N.; Thompson, K.

1985-10-01T23:59:59.000Z

357

Error message recording and reporting in the SLC control system  

SciTech Connect (OSTI)

Error or information messages that are signaled by control software either in the VAX host computer or the local microprocessor clusters are handled by a dedicated VAX process (PARANOIA). Messages are recorded on disk for further analysis and displayed at the appropriate console. Another VAX process (ERRLOG) can be used to sort, list and histogram various categories of messages. The functions performed by these processes and the algorithms used are discussed.

Spencer, N.; Bogart, J.; Phinney, N.; Thompson, K.

1985-04-01T23:59:59.000Z

358

Topics in measurement error and missing data problems  

E-Print Network [OSTI]

reasons. In this research, the impact of missing genotypes is investigated for high resolution combined linkage and association mapping of quantitative trait loci (QTL). We assume that the genotype data are missing completely at random (MCAR). Two... and asymptotic properties. In the genetics study, a new method is proposed to account for the missing genotype in a combined linkage and association study. We have concluded that this method does not improve power but it will provide better type I error rates...

Liu, Lian

2009-05-15T23:59:59.000Z

359

Magnetic error analysis of recycler pbar injection transfer line  

SciTech Connect (OSTI)

Detailed study of Fermilab Recycler Ring anti-proton injection line became feasible with its BPM system upgrade, though the beamline has been in existence and operational since year 2000. Previous attempts were not fruitful due to limitations in the BPM system. Among the objectives are the assessment of beamline optics and the presence of error fields. In particular the field region of the permanent Lambertson magnets at both ends of R22 transfer line will be scrutinized.

Yang, M.J.; /Fermilab

2007-06-01T23:59:59.000Z

360

Error rate and power dissipation in nano-logic devices  

E-Print Network [OSTI]

and content by: Laszlo B. Kish (Chair of Commitpte) Ed anc ez-Sinencio (Member) song g (Member) William Marlow (Member) nan Singh (Head of Department) May 2004 Major Subject: Electrical Engineering 111 ABSTRACT Error Rate and Power Dissipation... in Nano-Logic Devices. (May 2004) Jong Un Kim, B. S. ; M. S. ; Ph. D. , Seoul National University Chair of Advisory Committee: Dr. Laszlo B. Kish Current-controlled logic and single electron logic processors have been investigated with respect...

Kim, Jong Un

2004-01-01T23:59:59.000Z

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


361

Estimating the error in simulation prediction over the design space  

SciTech Connect (OSTI)

This study addresses the assessrnent of accuracy of simulation predictions. A procedure is developed to validate a simple non-linear model defined to capture the hardening behavior of a foam material subjected to a short-duration transient impact. Validation means that the predictive accuracy of the model must be established, not just in the vicinity of a single testing condition, but for all settings or configurations of the system. The notion of validation domain is introduced to designate the design region where the model's predictive accuracy is appropriate for the application of interest. Techniques brought to bear to assess the model's predictive accuracy include test-analysis coi-relation, calibration, bootstrapping and sampling for uncertainty propagation and metamodeling. The model's predictive accuracy is established by training a metalnodel of prediction error. The prediction error is not assumed to be systcmatic. Instead, it depends on which configuration of the system is analyzed. Finally, the prediction error's confidence bounds are estimated by propagating the uncertainty associated with specific modeling assumptions.

Shinn, R. (Rachel); Hemez, F. M. (François M.); Doebling, S. W. (Scott W.)

2003-01-01T23:59:59.000Z

362

On the efficiency of nondegenerate quantum error correction codes for Pauli channels  

E-Print Network [OSTI]

We examine the efficiency of pure, nondegenerate quantum-error correction-codes for Pauli channels. Specifically, we investigate if correction of multiple errors in a block is more efficient than using a code that only corrects one error per block. Block coding with multiple-error correction cannot increase the efficiency when the qubit error-probability is below a certain value and the code size fixed. More surprisingly, existing multiple-error correction codes with a code length equal or less than 256 qubits have lower efficiency than the optimal single-error correcting codes for any value of the qubit error-probability. We also investigate how efficient various proposed nondegenerate single-error correcting codes are compared to the limit set by the code redundancy and by the necessary conditions for hypothetically existing nondegenerate codes. We find that existing codes are close to optimal.

Gunnar Bjork; Jonas Almlof; Isabel Sainz

2009-05-19T23:59:59.000Z

363

Reliable random error estimation in the measurement of line-strength indices  

E-Print Network [OSTI]

We present a new set of accurate formulae for the computation of random errors in the measurement of atomic and molecular indices. The new expressions are in excellent agreement with numerical simulations. We have found that, in some cases, the use of approximated equations can give misleading line-strength index errors. It is important to note that accurate errors can only be achieved after a full control of the error propagation throughout the data reduction with a parallel processing of data and error frames. Finally, simple recipes for the estimation of the required signal-to-noise ratio to achieve a fixed index error are presented.

N. Cardiel; J. Gorgas; J. Cenarro; J. J. Gonzalez

1997-06-12T23:59:59.000Z

364

Memory device using movement of protons  

DOE Patents [OSTI]

An enhancement of an electrically written memory element utilizing the motion of protons within a dielectric layer surrounded by layers on either side to confine the protons within the dielectric layer with electrode means attached to the surrounding layers to change the spatial position of the protons within the dielectric layer. The device is preferably constructed as a silicon-silicon dioxide-silicon layered structure with the protons being introduced to the structure during an anneal in an atmosphere containing hydrogen gas. Device operation is enhanced by concluding this anneal step with a sudden cooling. The device operates at low power, is preferably nonvolatile, is radiation tolerant, and is compatible with convention silicon MOS processing for integration with other microelectronics elements on the same silicon substrate.

Warren, William L. (900 N. Randolph St., Arlington, VA 22203); Vanheusden, Karel J. R. (8401 Spain Rd., Albuquerque, NM 87111); Fleetwood, Daniel M. (5513 Estrellita del Norte, NE., Albuquerque, NM 87111); Devine, Roderick A. B. (12 Impasse de la Liberation, 38950 St. Martin le Vinoux, FR); Archer, Leo B. (3108 Vicky Ct., Garland, TX 75044); Brown, George A. (1512 Ridgeview Dr., Arlington, TX 76012-1940); Wallace, Robert M. (428 Park Bend Dr., Richardson, TX 75081)

2000-01-01T23:59:59.000Z

365

Remote direct memory access over datagrams  

DOE Patents [OSTI]

A communication stack for providing remote direct memory access (RDMA) over a datagram network is disclosed. The communication stack has a user level interface configured to accept datagram related input and communicate with an RDMA enabled network interface card (NIC) via an NIC driver. The communication stack also has an RDMA protocol layer configured to supply one or more data transfer primitives for the datagram related input of the user level. The communication stack further has a direct data placement (DDP) layer configured to transfer the datagram related input from a user storage to a transport layer based on the one or more data transfer primitives by way of a lower layer protocol (LLP) over the datagram network.

Grant, Ryan Eric; Rashti, Mohammad Javad; Balaji, Pavan; Afsahi, Ahmad

2014-12-02T23:59:59.000Z

366

Solid state engine using nitinol memory alloy  

DOE Patents [OSTI]

A device for converting heat energy to mechanical energy includes a reservoir of a hot fluid and a rotor assembly mounted thereabove so a portion of it dips into the hot fluid. The rotor assembly may include a shaft having four spokes extending radially outwardly therefrom at right angles to each other, a floating ring and four flexible elements composed of a thermal memory material having a critical temperature between the temperature of the hot fluid and that of the ambient atmosphere extending between the ends of the spokes and the floating ring. Preferably, the flexible elements are attached to the floating ring through curved leaf springs. Energetic shape recovery of the flexible elements in the hot fluid causes the rotor assembly to rotate.

Golestaneh, Ahmad A. (Bolingbrook, IL)

1981-01-01T23:59:59.000Z

367

Direct memory access transfer completion notification  

DOE Patents [OSTI]

Methods, compute nodes, and computer program products are provided for direct memory access (`DMA`) transfer completion notification. Embodiments include determining, by an origin DMA engine on an origin compute node, whether a data descriptor for an application message to be sent to a target compute node is currently in an injection first-in-first-out (`FIFO`) buffer in dependence upon a sequence number previously associated with the data descriptor, the total number of descriptors currently in the injection FIFO buffer, and the current sequence number for the newest data descriptor stored in the injection FIFO buffer; and notifying a processor core on the origin DMA engine that the message has been sent if the data descriptor for the message is not currently in the injection FIFO buffer.

Chen, Dong (Croton on Hudson, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Kumar, Sameer (White Plains, NY); Parker, Jeffrey J. (Rochester, MN); Steinmacher-Burow, Burkhard D. (Esslingen, DE); Vranas, Pavlos (Danville, CA)

2010-07-27T23:59:59.000Z

368

Solid state engine using nitinol memory alloy  

DOE Patents [OSTI]

A device for converting heat energy to mechanical energy includes a reservoir of a hot fluid and a rotor assembly mounted thereabove so a portion of it dips into the hot fluid. The rotor assembly may include a shaft having four spokes extending radially outwardly therefrom at right angles to each other, a floating ring and four flexible elements composed of a thermal memory material having a critical temperature between the temperature of the hot fluid and that of the ambient atmosphere extending between the ends of the spokes and the floating ring. Preferably, the flexible elements are attached to the floating ring through curved leaf springs. Energetic shape recovery of the flexible elements in the hot fluid causes the rotor assembly to rotate.

Golestaneh, A.A.

1980-01-21T23:59:59.000Z

369

Direct memory access transfer completion notification  

DOE Patents [OSTI]

DMA transfer completion notification includes: inserting, by an origin DMA engine on an origin node in an injection first-in-first-out (`FIFO`) buffer, a data descriptor for an application message to be transferred to a target node on behalf of an application on the origin node; inserting, by the origin DMA engine, a completion notification descriptor in the injection FIFO buffer after the data descriptor for the message, the completion notification descriptor specifying a packet header for a completion notification packet; transferring, by the origin DMA engine to the target node, the message in dependence upon the data descriptor; sending, by the origin DMA engine, the completion notification packet to a local reception FIFO buffer using a local memory FIFO transfer operation; and notifying, by the origin DMA engine, the application that transfer of the message is complete in response to receiving the completion notification packet in the local reception FIFO buffer.

Archer, Charles J. (Rochester, MN); Blocksome, Michael A. (Rochester, MN); Parker, Jeffrey J. (Rochester, MN)

2011-02-15T23:59:59.000Z

370

files between "helped" and "unhelped" memory CD8 T cells to better understand  

E-Print Network [OSTI]

265 files between "helped" and "unhelped" memory CD8 T cells to better understand how memory CD8 the presence of CD4 help during "unhelped" memory CD8 T cell recall responses could not rem- edy their proliferative defects; and vice versa, the lack of CD4 help during "helped" memory CD8 T cell recall re- sponses

371

Serotoninmushroom body circuit modulating the formation of anesthesia-resistant memory  

E-Print Network [OSTI]

Serotonin­mushroom body circuit modulating the formation of anesthesia-resistant memory in Drosophila produces two genetically distinct forms of intermediate-term memories: anesthesia-sensitive memory, which requires the amnesiac gene, and anesthesia- resistant memory (ARM), which requires the radish gene

Huang, Haimei

372

Flash Memory Garbage Collection in Hard Real-Time Systems  

E-Print Network [OSTI]

collection and compare it to that of more proactive schemes. I develop formulas to assess the schedulability of hard real- time periodic task sets under simpli ed memory consumption models. Results show that I prove the proactive schemes achieve the larger... work in the area of ash memory management. Moreover, we review the previous research about garbage collection in real-time system. In Chapter III we will describe a simpli ed ash memory model that will be used throughout the rest of the thesis...

Lai, Chien-An

2012-10-19T23:59:59.000Z

373

System and method for programmable bank selection for banked memory subsystems  

DOE Patents [OSTI]

A programmable memory system and method for enabling one or more processor devices access to shared memory in a computing environment, the shared memory including one or more memory storage structures having addressable locations for storing data. The system comprises: one or more first logic devices associated with a respective one or more processor devices, each first logic device for receiving physical memory address signals and programmable for generating a respective memory storage structure select signal upon receipt of pre-determined address bit values at selected physical memory address bit locations; and, a second logic device responsive to each of the respective select signal for generating an address signal used for selecting a memory storage structure for processor access. The system thus enables each processor device of a computing environment memory storage access distributed across the one or more memory storage structures.

Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton on Hudson, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Hoenicke, Dirk (Seebruck-Seeon, DE); Ohmacht, Martin (Yorktown Heights, NY); Salapura, Valentina (Chappaqua, NY); Sugavanam, Krishnan (Mahopac, NY)

2010-09-07T23:59:59.000Z

374

Cognitive analysis of students' errors and misconceptions in variables, equations, and functions  

E-Print Network [OSTI]

such issues, three basic algebra concepts - variable, equation, and function – are used to analyze students’ errors, possible buggy algorithms, and the conceptual basis of these errors: misconceptions. Through the research on these three basic concepts...

Li, Xiaobao

2009-05-15T23:59:59.000Z

375

Recompile if your codes run into MPICH error after the maintenance...  

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

Recompile if your codes run into MPICH errors after the maintenance on 6252014 Recompile if your codes run into MPICH error after the maintenance on 6252014 June 27, 2014 (0...

376

Design error diagnosis and correction in digital circuits  

E-Print Network [OSTI]

, each primary output would impose a con- straint on the on-set and off-set. These constraints should be combined together to derive the final on-set and off-set of the new function. Proposition 2: [9, 18, 17] Let i be the index of the primary outputs... to this equation are deleted. The work in [17] is also based on Boolean comparisons and applies to multiple errors. Overall, their method does not guarantee a solution. Test-vector simulation methods proposed for the DEDC problem include [20, 22, 26]. In [20...

Nayak, Debashis

1998-01-01T23:59:59.000Z

377

Reducing Quantum Errors and Improving Large Scale Quantum Cryptography  

E-Print Network [OSTI]

Noise causes severe difficulties in implementing quantum computing and quantum cryptography. Several schemes have been suggested to reduce this problem, mainly focusing on quantum computation. Motivated by quantum cryptography, we suggest a coding which uses $N$ quantum bits ($N=n^2$) to encode one quantum bit, and reduces the error exponentially with $n$. Our result suggests the possibility of distributing a secure key over very long distances, and maintaining quantum states for very long times. It also provides a new quantum privacy amplification against a strong adversary.

T. Mor

1996-08-15T23:59:59.000Z

378

Topological Quantum Computation and Error Correction by Biological Cells  

E-Print Network [OSTI]

A Topological examination of phospholipid dynamics in the Far from Equilibrium state has demonstrated that metabolically active cells use waste heat to generate spatially patterned membrane flows by forced convection and shear. This paper explains the resemblance between this nonlinear membrane model and Witten Kitaev type Topological Quantum Computation systems, and demonstrates how this self-organising membrane enables biological cells to circumvent the decoherence problem, perform error correction procedures, and produce classical level output as shielded current flow through cytoskeletal protein conduit. Cellular outputs are shown to be Turing compatible as they are determined by computable in principle hydromagnetic fluid flows, and importantly, are Adaptive from an Evolutionary perspective.

J T Lofthouse

2005-02-02T23:59:59.000Z

379

Error 401 on upload? | OpenEI Community  

Open Energy Info (EERE)

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 Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan Leandro,Law and Policy CenterTODO:Erie CountyError 401

380

Error Estimation for High Speed Flows Using Continuous and Discrete Adjoints  

E-Print Network [OSTI]

the fullest extent possible) strategy to control the error in multi-physics simulations of Scramjet propulsion

Alonso, Juan J.

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


381

Local Estimation of Modeling Error in Multi-Scale Modeling of Heterogeneous Elastic Solids  

E-Print Network [OSTI]

Global Enhancement . . . . . . . . . . . . . . . . . . . . 24 3.3.3 The Adaptive Process . . . . . . . . . . . . . . . . . . . 24 Chapter 4. Modeling Error Estimation 30 4.1 Residual-Based Error Estimation . . . . . . . . . . . . . . . . . 30 4.2 Error... with effectivity indices . 80 ix 5.18 Average estimates of enhancement errors in quantity of interest Qx(u) using three enhancements with effectivity indices . . . . 80 x List of Figures 1.1 Examples of composite failure modes . . . . . . . . . . . . . . 4 2...

Moody, Tristan

2008-03-19T23:59:59.000Z

382

Bayesian Semiparametric Density Deconvolution and Regression in the Presence of Measurement Errors  

E-Print Network [OSTI]

BAYESIAN SEMIPARAMETRIC DENSITY DECONVOLUTION AND REGRESSION IN THE PRESENCE OF MEASUREMENT ERRORS A Dissertation by ABHRA SARKAR Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment... Copyright 2014 Abhra Sarkar ABSTRACT Although the literature on measurement error problems is quite extensive, so- lutions to even the most fundamental measurement error problems like density de- convolution and regression with errors...

Sarkar, Abhra

2014-06-24T23:59:59.000Z

383

DESIGN OPTIONS FOR SMALL SCALE SHARED MEMORY MULTIPROCESSORS  

E-Print Network [OSTI]

i DESIGN OPTIONS FOR SMALL SCALE SHARED MEMORY MULTIPROCESSORS by Luiz André Barroso Copyright 1996 Luiz André Barroso #12;ii to Jacqueline Chame #12;iii Acknowledgments During my stay at USC I

Barroso, Luiz André

384

MemTable : contextual memory in group workspaces  

E-Print Network [OSTI]

This thesis presents the design and implementation of MemTable, an interactive touch table that supports co-located group meetings by capturing both digital and physical interactions in its memory. The goal of the project ...

Hunter, Seth E

2009-01-01T23:59:59.000Z

385

A limited memory algorithm for inequality constrained minimization 1 ...  

E-Print Network [OSTI]

Oct 2, 2003 ... In Section 3, we give the estimates of the amount of memory and ...... 1603. 0,16. 639. 0,76. 20. MCCORMCK. 5000. 10000. 0. 20. 1,252. 8. 1,22.

2003-10-07T23:59:59.000Z

386

ORIGINAL PAPER Recorded Versus Organic Memory: Interaction of Two  

E-Print Network [OSTI]

of interpretation, i.e., hermeneutic systems, meaning involves contexts, history, memory, learning, and experience grammars), or touched down from the heights of holistic sciences such as systems biology or hermeneutics

Markos, Anton

387

Gamification: Creating Gameful and Playful Application for Complementing Human Memory  

E-Print Network [OSTI]

Gamification: Creating Gameful and Playful Application for Complementing Human Memory Master thesis of this Master/Diploma thesis is to develop gamification-based design, approach and application that support

Nejdl, Wolfgang

388

Multi-item memory in the primate prefrontal cortex  

E-Print Network [OSTI]

The ability to retain multiple items in short-term memory is fundamental for cognition, yet almost nothing is known about its neural basis. To explore the mechanisms underlying this ability, we trained two monkeys to ...

Warden, Melissa R. (Melissa Rhoads)

2006-01-01T23:59:59.000Z

389

Quantifying Locality in the Memory Access Patterns of HPCApplications  

SciTech Connect (OSTI)

Several benchmarks for measuring memory performance of HPC systems along dimensions of spatial and temporal memory locality have recently been proposed. However, little is understood about the relationships of these benchmarks to real applications and to each other. In this paper, we propose a methodology for producing architecture-neutral characterizations of the spatial and temporal locality exhibited by the memory access patterns of applications. We demonstrate that the results track intuitive notions of spatial and temporal locality on several synthetic and application benchmarks. We employ the methodology to analyze the memory performance components of the HPC Challenge Benchmarks, the Apex-MAP benchmark, and their relationships to each other and other benchmarks and applications. We show that this analysis can be used to both increase understanding of the benchmarks and enhance their usefulness by mapping them, along with applications, to a 2-D space along axes of spatial and temporal locality.

Weinberg, Jonathan; Snavely, Allan; McCracken, Michael O.; Strohmaier, Erich

2005-07-25T23:59:59.000Z

390

A phenomenological constitutive model for magnetic shape memory alloys  

E-Print Network [OSTI]

A thermodynamics-based constitutive model is derived which predicts the nonlinear strain and magnetization response that magnetic shape memory alloys (MSMAs) exhibit when subjected to mechanical and magnetic loads. The model development is conducted...

Kiefer, Bjoern

2007-04-25T23:59:59.000Z

391

High density Ru nanocrystal deposition for nonvolatile memory applications  

E-Print Network [OSTI]

High density Ru nanocrystal deposition for nonvolatile memory applications Damon B. Farmer School density optimizes the charge storing capability of the floating layer, while a high degree of size

392

Fabrication and characterization of porous shape memory alloys  

E-Print Network [OSTI]

This work details an investigation into the production of porous shape memory alloys (SMAs) via hot isostatic press (HIP) from prealloyed powders. HIPing is one of three main methods for producing porous SMAs, the other two are conventional...

Penrod, Luke Edward

2004-09-30T23:59:59.000Z

393

The Influence of Socioeconomic Status on Working Memory Performance   

E-Print Network [OSTI]

analyses, there were no significant differences observed when SES grade E was included in pairwise comparisons. Results indicated that SES influences level of working memory performance, with those in a higher SES grade scoring higher on average than...

Cleary, Ruth

2012-11-28T23:59:59.000Z

394

Using shape memory alloy as dampers : design methodology  

E-Print Network [OSTI]

Many shape memory alloy (SMA) material models have been proposed in the literature, but most are suited only to forward analysis and not to design. This project proposes a generalized friction element, the lambda box, to ...

Leong, Siu Loong

2005-01-01T23:59:59.000Z

395

Topobo : a 3-D constructive assembly system with kinetic memory  

E-Print Network [OSTI]

We introduce Topobo, a 3-D constructive assembly system em- bedded with kinetic memory, the ability to record and playback physical motion. Unique among modeling systems is Topobo's coincident physical input and output ...

Raffle, Hayes Solos, 1974-

2004-01-01T23:59:59.000Z

396

The Effects of Ageing on Memory and Thinking   

E-Print Network [OSTI]

The main aim of the present study is to examine the effects of ageing on memory and thinking by examining verbal fluency performance. More specifically looking at the differences between older and younger people, to ...

Ford, Amanda

2007-01-01T23:59:59.000Z

397

CITI Technical Report 00-3 Encrypting Virtual Memory  

E-Print Network [OSTI]

secured against physical attacks or protected against security compromises that alloCITI Technical Report 00-3 Encrypting Virtual Memory Niels Provos provos@citi.umich.edu Abstract

Michigan, University of

398

Design and characterization of acoustic pulse shape memory alloy actuators  

E-Print Network [OSTI]

Single crystal Ni-Mn-Ga ferromagnetic shape memory alloys (FSMAs) are active materials which produce strain when a magnetic field is applied. The large saturation strain (6%) of Ni-Mn-Ga, and material energy density ...

Chambers, Joshua Michael

2005-01-01T23:59:59.000Z

399

Approximate Associative Memristive Memory for Energy-Efficient GPUs  

E-Print Network [OSTI]

Approximate Associative Memristive Memory for Energy-Efficient GPUs Abbas Rahimi, Amirali Ghofrani at the architectural and algorithmic levels. At the hardware level, energy-efficiency techniques that employ voltage

Liebling, Michael

400

Memory & Cognition 2005, 33 (5), 871-886  

E-Print Network [OSTI]

Memory & Cognition 2005, 33 (5), 871-886 Since Paul Broca's discovery (1861) of an association (Gardner, Brownell, Wapner, & Michelow, 871 Copyright 2005 Psychonomic Society, Inc. The work reported here

Kutas, Marta

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


401

Life-cycle assessment of NAND flash memory  

E-Print Network [OSTI]

this possibility, a life-cycle assessment (LCA) of NAND ?ashstudy presents a life-cycle assessment (LCA) of ?ash memoryInput- Output Life Cycle Assessment (EIO-LCA), US 1997

Boyd, Sarah; Horvath, A; Dornfeld, David

2010-01-01T23:59:59.000Z

402

Wakate-Initiative Seminar Memory formation in the fly brain!  

E-Print Network [OSTI]

Wakate-Initiative Seminar Memory formation in the fly brain! Dr. Hiromu Tanimoto Head is synthesized in ~280 neurons in the fly brain and involved also in other brain functions, it is important

Ejiri, Shinji

403

Information Ecology: Open System Environment for Data, Memories and Knowing  

E-Print Network [OSTI]

Information Ecology: Open System Environment for Data, Memories and Knowing Karen S. Baker@scu.edu Abstract. An information ecology provides a conceptual framework to consider data, the creation Ecological Research (LTER) community, presents some manifestations of traditionally unreported `invisible

Bowker, Geoffrey C.

404

Abstract versus exemplar memory representations: the role of contextual interference  

E-Print Network [OSTI]

of memory representations, and to try and replicate the findings of Chamberlin and Magill (1992b). Both experiments required the participants to perform 297 trials per day, of three separate tasks, for four consecutive days, followed by a retention...

Johnson, Jennifer Linnea

1998-01-01T23:59:59.000Z

405

activation facilitates memory: Topics by E-print Network  

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

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Fractal Consistency: Architecting the Memory System to Facilitate Verification Computer...

406

ON A CLASS OF LIMITED MEMORY PRECONDITIONERS FOR ...  

E-Print Network [OSTI]

In the rest of this section, we show that this memory ...... k Api = 0. (3.12). Proposition 3.4. Let pi, i = 1,...,k, be k conjugate gradient directions generated during the ...

2008-12-04T23:59:59.000Z

407

Collective Memory Transfers for Multi-Core Chips  

SciTech Connect (OSTI)

Future performance improvements for microprocessors have shifted from clock frequency scaling towards increases in on-chip parallelism. Performance improvements for a wide variety of parallel applications require domain-decomposition of data arrays from a contiguous arrangement in memory to a tiled layout for on-chip L1 data caches and scratchpads. How- ever, DRAM performance suffers under the non-streaming access patterns generated by many independent cores. We propose collective memory scheduling (CMS) that actively takes control of collective memory transfers such that requests arrive in a sequential and predictable fashion to the memory controller. CMS uses the hierarchically tiled arrays formal- ism to compactly express collective operations, which greatly improves programmability over conventional prefetch or list- DMA approaches. CMS reduces application execution time by up to 32% and DRAM read power by 2.2×, compared to a baseline DMA architecture such as STI Cell.

Michelogiannakis, George; Williams, Alexander; Shalf, John

2013-11-13T23:59:59.000Z

408

Replay of memories of extended behavior in the rat hippocampus  

E-Print Network [OSTI]

The hippocampus is a highly conserved structure in the medial temporal lobe of the brain that is known to be critical for spatial learning in rodents, and spatial and episodic memory in humans. During pauses in exploration, ...

Davidson, Thomas James Damon Cheakamus

2009-01-01T23:59:59.000Z

409

Simulation Steering with SCIRun in a Distributed Memory Environment  

E-Print Network [OSTI]

Lake City, UT 84112 fmmiller, hansen, sparker, crjg@cs.utah.edu http://www.cs.utah.edu/¸sci #12Simulation Steering with SCIRun in a Distributed Memory Environment Michelle Miller, Charles D

Utah, University of

410

Simulation Steering with SCIRun in a Distributed Memory Environment  

E-Print Network [OSTI]

Lake City, UT 84112 fmmiller, hansen, sparker, crjg@cs.utah.edu http: www.cs.utah.edu sci #12;AbstractSimulation Steering with SCIRun in a Distributed Memory Environment Michelle Miller, Charles D

Utah, University of

411

Heterogeneous-race-free Memory Models Derek R. Hower  

E-Print Network [OSTI]

1 Heterogeneous-race-free Memory Models Derek R. Hower , Blake A. Hechtman§ , Bradford M. Beckmann Electrical and Computer Engineering University of Wisconsin-Madison Computer Sciences {derek.hower, brad

Wood, David A.

412

Analog VLSI Implementations of Continuous-Time Memory Structures  

E-Print Network [OSTI]

Analog VLSI Implementations of Continuous-Time Memory Structures Jui-Kuo Juan, John G. Harris exactly the same as the cascade of fol- lower integrator circuits described in Mead's textbook [lo

Harris, John G.

413

Mpemba paradox: Hydrogen bond memory and water-skin supersolidity  

E-Print Network [OSTI]

Numerical reproduction of measurements, experimental evidence for skin super-solidity and hydrogen-bond memory clarified that Mpemba paradox integrates the heat emission-conduction-dissipation dynamics in the source-path-drain cycle system.

Chang Q Sun

2015-01-05T23:59:59.000Z

414

Energy-Aware Microprocessor Synchronization: Transactional Memory vs. Locks  

E-Print Network [OSTI]

, but they are difficult to use. In particular, they introduce substantial software engineering problems, or aborts) and are serializable. Hardware transactional memory proposals (e.g., [7], [10], [17], [21], [22

Moreshet, Tali

415

Maintaining Standards: Differences between the Standard Deviation and Standard Error, and  

E-Print Network [OSTI]

Maintaining Standards: Differences between the Standard Deviation and Standard Error, and When to Use Each David L Streiner, PhD1 Many people confuse the standard deviation (SD) and the standard error of the findings. (Can J Psychiatry 1996;41:498­502) Key Words: statistics, standard deviation, standard error

California at Santa Cruz, University of

416

TECHNICAL ADVANCES Dye shift: a neglected source of genotyping error in molecular  

E-Print Network [OSTI]

TECHNICAL ADVANCES Dye shift: a neglected source of genotyping error in molecular ecology JOLENE T for genotyping error, yet potential errors stemming from dye-induced mobility shift (dye shift) may be frequently left uncorrected, dye shift can lead to mis-scoring alleles and even to fal- sely calling new alleles

Jamieson, Ian

417

Exposure Measurement Error in Time-Series Studies of Air Pollution: Concepts and Consequences  

E-Print Network [OSTI]

of air pollution and health. Because measurement error may have substantial implications for interpreting1 Exposure Measurement Error in Time-Series Studies of Air Pollution: Concepts and Consequences S in time-series studies 1 11/11/99 Keywords: measurement error, air pollution, time series, exposure

Dominici, Francesca

418

Database Error Trapping and Prediction Mike West & Robert L. Winkler \\Lambda  

E-Print Network [OSTI]

Database Error Trapping and Prediction By Mike West & Robert L. Winkler \\Lambda Duke University of errors in databases. In particular, we study two error detection methods. In the duplicate performance method, all items in a database are processed by two individuals (or machines), and the resulting records

West, Mike

419

Error Analysis of Ia Supernova and Query on Cosmic Dark Energy  

E-Print Network [OSTI]

Some serious faults in error analysis of observations for SNIa have been found. Redoing the same error analysis of SNIa, by our idea, it is found that the average total observational error of SNIa is obviously greater than $0.55^m$, so we can't decide whether the universe is accelerating expansion or not.

Qiuhe Peng; Yiming Hu; Kun Wang; Yu Liang

2012-01-16T23:59:59.000Z

420

An electron-beam programmable erasable memory device  

E-Print Network [OSTI]

AN ELECTRON-BEAM PROGRAMMABLE ERASABLE MEMORY DEVICE A Thesis by RANG-HUAI WANG Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OP SCIENCE August 1984 Major... Subject: Electrical Engineering AN ELECTRON-BEAM PROGRAMMABLE ERASABLE MEMORY DEVICE A Thesis by Kang-Huai Wang Approved as to style and content by: Dona L. Parker (Chairman of Committee) Mark H. Weicho d (Member) omas . air, III (Member...

Wang, Kang-Huai

1984-01-01T23:59:59.000Z

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


421

A perturbative and gauge invariant treatment of gravitational wave memory  

E-Print Network [OSTI]

We present a perturbative treatment of gravitational wave memory. The coordinate invariance of Einstein's equations leads to a type of gauge invariance in perturbation theory. As with any gauge invariant theory, results are more clear when expressed in terms of manifestly gauge invariant quantities. Therefore we derive all our results from the perturbed Weyl tensor rather than the perturbed metric. We derive gravitational wave memory for the Einstein equations coupled to a general energy-momentum tensor that reaches null infinity.

Lydia Bieri; David Garfinkle

2014-04-03T23:59:59.000Z

422

Using DMA for copying performance counter data to memory  

DOE Patents [OSTI]

A device for copying performance counter data includes hardware path that connects a direct memory access (DMA) unit to a plurality of hardware performance counters and a memory device. Software prepares an injection packet for the DMA unit to perform copying, while the software can perform other tasks. In one aspect, the software that prepares the injection packet runs on a processing core other than the core that gathers the hardware performance data.

Gara, Alan; Salapura, Valentina; Wisniewski, Robert W

2013-12-31T23:59:59.000Z

423

Multi mode nano scale Raman echo quantum memory  

E-Print Network [OSTI]

Low loss magnetic surface plasmon polariton (SPP) modes characterized by enhanced electrical field component and subwavelength confinement on the dielectric and negative-index metamaterial interface are presented. We demonstrate a possibility of storage and perfect retrieval of the low loss magnetic SPP fields by using a photon echo quantum memory on Raman atomic transition. We describe specific properties of the proposed technique which opens a possibility for efficient nano scale multi-mode quantum memory.

S. A. Moiseev; E. S. Moiseev

2010-01-31T23:59:59.000Z

424

Verification of unfold error estimates in the UFO code  

SciTech Connect (OSTI)

Spectral unfolding is an inverse mathematical operation which attempts to obtain spectral source information from a set of tabulated response functions and data measurements. Several unfold algorithms have appeared over the past 30 years; among them is the UFO (UnFold Operator) code. In addition to an unfolded spectrum, UFO also estimates the unfold uncertainty (error) induced by running the code in a Monte Carlo fashion with prescribed data distributions (Gaussian deviates). In the problem studied, data were simulated from an arbitrarily chosen blackbody spectrum (10 keV) and a set of overlapping response functions. The data were assumed to have an imprecision of 5% (standard deviation). 100 random data sets were generated. The built-in estimate of unfold uncertainty agreed with the Monte Carlo estimate to within the statistical resolution of this relatively small sample size (95% confidence level). A possible 10% bias between the two methods was unresolved. The Monte Carlo technique is also useful in underdetemined problems, for which the error matrix method does not apply. UFO has been applied to the diagnosis of low energy x rays emitted by Z-Pinch and ion-beam driven hohlraums.

Fehl, D.L.; Biggs, F.

1996-07-01T23:59:59.000Z

425

Effects of imbalance and geometric error on precision grinding machines  

SciTech Connect (OSTI)

To study balancing in grinding, a simple mechanical system was examined. It was essential to study such a well-defined system, as opposed to a large, complex system such as a machining center. The use of a compact, well-defined system enabled easy quantification of the imbalance force input, its phase angle to any geometric decentering, and good understanding of the machine mode shapes. It is important to understand a simple system such as the one I examined given that imbalance is so intimately coupled to machine dynamics. It is possible to extend the results presented here to industrial machines, although that is not part of this work. In addition to the empirical testing, a simple mechanical system to look at how mode shapes, balance, and geometric error interplay to yield spindle error motion was modelled. The results of this model will be presented along with the results from a more global grinding model. The global model, presented at ASPE in November 1996, allows one to examine the effects of changing global machine parameters like stiffness and damping. This geometrically abstract, one-dimensional model will be presented to demonstrate the usefulness of an abstract approach for first-order understanding but it will not be the main focus of this thesis. 19 refs., 36 figs., 10 tables.

Bibler, J.E.

1997-06-01T23:59:59.000Z

426

Memory Resilient Gain-scheduled State-Feedback Control of Uncertain LTI/LPV Systems with Time-Varying Delays  

E-Print Network [OSTI]

The stabilization of uncertain LTI/LPV time delay systems with time varying delays by state-feedback controllers is addressed. At the difference of other works in the literature, the proposed approach allows for the synthesis of resilient controllers with respect to uncertainties on the implemented delay. It is emphasized that such controllers unify memoryless and exact-memory controllers usually considered in the literature. The solutions to the stability and stabilization problems are expressed in terms of LMIs which allow to check the stability of the closed-loop system for a given bound on the knowledge error and even optimize the uncertainty radius under some performance constraints; in this paper, the $\\mathcal{H}_\\infty$ performance measure is considered. The interest of the approach is finally illustrated through several examples.

Briat, Corentin; Lafay, Jean-François; 10.1016/j.sysconle.2010.06.004

2012-01-01T23:59:59.000Z

427

Shape memory response and microstructural evolution of a severe plastically deformed high temperature shape memory alloy (NiTiHf)  

E-Print Network [OSTI]

NiTiHf alloys have attracted considerable attention as potential high temperature Shape Memory Alloy (SMA) but the instability in transformation temperatures and significant irrecoverable strain during thermal cycling under constant stress remains a...

Simon, Anish Abraham

2006-04-12T23:59:59.000Z

428

Corruption Dynamics: The Golden Goose Effect  

E-Print Network [OSTI]

based on an analogous measure BkW ageF rac of the fractionbetween F wdW ageF rac and BkW ageF rac is 0.75 withinthen again one would expect BkW ageF rac to play a similar

Niehaus, Paul; Sukhtankar, Sandip

2012-01-01T23:59:59.000Z

429

Coordinated joint motion control system with position error correction  

DOE Patents [OSTI]

Disclosed are an articulated hydraulic machine supporting, control system and control method for same. The articulated hydraulic machine has an end effector for performing useful work. The control system is capable of controlling the end effector for automated movement along a preselected trajectory. The control system has a position error correction system to correct discrepancies between an actual end effector trajectory and a desired end effector trajectory. The correction system can employ one or more absolute position signals provided by one or more acceleration sensors supported by one or more movable machine elements. Good trajectory positioning and repeatability can be obtained. A two-joystick controller system is enabled, which can in some cases facilitate the operator's task and enhance their work quality and productivity.

Danko, George (Reno, NV)

2011-11-22T23:59:59.000Z

430

Significance of gauge line error in orifice measurement  

SciTech Connect (OSTI)

Pulsation induced gauge line amplification can cause errors in the recorded differential signal used to calculate flow. Its presence may be detected using dual transmitters (one connected at the orifice taps, the other at the end of the gauge lines) and comparing the relative peak to peak amplitudes. Its affect on recorded differential may be determined by averaging both signals with a PC based data acquisition and analysis system. Remedial action is recommended in all cases where amplification is detected. Use of close connect, full opening manifolds, is suggested to decouple the gauge lines` resonant frequency from that of the excitation`s, by positioning the recording device as close to the process signal`s origin as possible.

Bowen, J.W. [ANR Pipeline Co., Detroit, MI (United States)

1995-12-01T23:59:59.000Z

431

Statistical Error analysis of Nucleon-Nucleon phenomenological potentials  

E-Print Network [OSTI]

Nucleon-Nucleon potentials are commonplace in nuclear physics and are determined from a finite number of experimental data with limited precision sampling the scattering process. We study the statistical assumptions implicit in the standard least squares fitting procedure and apply, along with more conventional tests, a tail sensitive quantile-quantile test as a simple and confident tool to verify the normality of residuals. We show that the fulfilment of normality tests is linked to a judicious and consistent selection of a nucleon-nucleon database. These considerations prove crucial to a proper statistical error analysis and uncertainty propagation. We illustrate these issues by analyzing about 8000 proton-proton and neutron-proton scattering published data. This enables the construction of potentials meeting all statistical requirements necessary for statistical uncertainty estimates in nuclear structure calculations.

R. Navarro Perez; J. E. Amaro; E. Ruiz Arriola

2014-06-10T23:59:59.000Z

432

Memory and correlation effects in nuclear collisions  

SciTech Connect (OSTI)

Relaxation rates are calculated by numerically solving the Kadanoff-Baym equations for an extended system of nuclear matter. The time evolutions of initial nonequilibrium distributions in momentum space, defined by two Fermi spheres, is studied. Comparisons are made with the (semi-) classical method used in BUU, VUU, etc. Danielewicz has found that at a nucleon density of {similar_to}0.3 nucleon/fm{sup 3} and an equilibrated temperature of about 70 MeV, the quantum relaxation rate is smaller than the classical by a factor of about 2. These results are confirmed. The calculations are extended to lower temperatures (energies) and densities and this ratio is found to be essentially unchanged over a wide range although there are deviations from this rule as seen in the text. The quantum evolutions are started either with an uncorrelated or a correlated initial distribution. The latter are obtained with imaginary time stepping. The relaxation time approximation was previously found to be excellent for the classical evolution. It is found to be as good for the quantum evolution. The memory time is in the present calculations found to be less than 5 fm/{ital c} (i.e., {similar_to}1.7{times}10{sup {minus}23} s). One concludes that quantum-mechanical effects have to be incorporated in the models of heavy ion collisions and nuclear dynamics. Not until this is done comprehensively will one be able to readily assess the role of two-nucleon collisions in the equilibration process.

Koehler, H.S. [Physics Department, University of Arizona, Tucson, Arizona 85721 (United States)] [Physics Department, University of Arizona, Tucson, Arizona 85721 (United States)

1995-06-01T23:59:59.000Z

433

Performance analysis of memory hierachies in high performance systems  

SciTech Connect (OSTI)

This thesis studies memory bandwidth as a performance predictor of programs. The focus of this work is on computationally intensive programs. These programs are the most likely to access large amounts of data, stressing the memory system. Computationally intensive programs are also likely to use highly optimizing compilers to produce the fastest executables possible. Methods to reduce the amount of data traffic by increasing the average number of references to each item while it resides in the cache are explored. Increasing the average number of references to each cache item reduces the number of memory requests. Chapter 2 describes the DLX architecture. This is the architecture on which all the experiments were performed. Chapter 3 studies memory moves as a performance predictor for a group of application programs. Chapter 4 introduces a model to study the performance of programs in the presence of memory hierarchies. Chapter 5 explores some compiler optimizations that can help increase the references to each item while it resides in the cache.

Yogesh, A.

1993-07-01T23:59:59.000Z

434

Method of preparing a two-way shape memory alloy  

DOE Patents [OSTI]

A two-way shape memory alloy, a method of training a shape memory alloy, and a heat engine employing the two-way shape memory alloy to do external work during both heating and cooling phases are disclosed. The alloy is heated under a first training stress to a temperature which is above the upper operating temperature of the alloy, then cooled to a cold temperature below the zero-force transition temperature of the alloy, then deformed while applying a second training stress which is greater in magnitude than the stress at which the alloy is to be operated, then heated back to the hot temperature, changing from the second training stress back to the first training stress. 8 figs.

Johnson, A.D.

1984-03-06T23:59:59.000Z

435

Method of preparing a two-way shape memory alloy  

DOE Patents [OSTI]

A two-way shape memory alloy, a method of training a shape memory alloy, and a heat engine employing the two-way shape memory alloy to do external work during both heating and cooling phases. The alloy is heated under a first training stress to a temperature which is above the upper operating temperature of the alloy, then cooled to a cold temperature below the zero-force transition temperature of the alloy, then deformed while applying a second training stress which is greater in magnitude than the stress at which the alloy is to be operated, then heated back to the hot temperature, changing from the second training stress back to the first training stress.

Johnson, Alfred D. (5383 Bancroft Ave., Oakland, CA 94601)

1984-01-01T23:59:59.000Z

436

Physiological mechanisms of hippocampal memory processing : experiments and applied adaptive filtering  

E-Print Network [OSTI]

The hippocampus is necessary for the formation and storage of episodic memory, however, the computations within and between hippocampal subregions (CA1, CA3, and dentate gyrus) that mediate these memory processing functions ...

Nguyen, David P., 1977-

2008-01-01T23:59:59.000Z

437

Re-Inventing Memory And Reforming Performances: A Genealogy Of Panic Theatre In Zimbabwe  

E-Print Network [OSTI]

, and Marvin Carlson and their work regarding memory and performance, the dissertation examines how theatre artists use their memories or experiences of Theatre for Development (TfD), the pungwe or bira, to create a means to entertain and communicate...

Wrolson, Joy Leigh

2009-09-23T23:59:59.000Z

438

Hippocampal function is not required for the precision of remote place memory  

E-Print Network [OSTI]

Background: During permanent memory formation, recall of acquired place memories initially depends on the hippocampus and eventually become hippocampus-independent with time. It has been suggested that the quality of ...

Kitamura, Takashi

439

Circuit design for embedded memory in low-power integrated circuits  

E-Print Network [OSTI]

This thesis explores the challenges for integrating embedded static random access memory (SRAM) and non-volatile memory-based on ferroelectric capacitor technology-into lowpower integrated circuits. First considered is the ...

Qazi, Masood

2012-01-01T23:59:59.000Z

440

Memories of War: Exploring Victim-Victimizer Perspectives in Critical Content-Based Instruction in Japanese  

E-Print Network [OSTI]

4 (2012) Kubota Memories of War Clevedon, UK: Multilingualtaiheiyô sensô [Asia-Pacific War in the 20 th Century] (pp.Nozaki/2063# Nozaki, Y. (2008). War memory, nationalism, and

Kubota, Ryuko

2012-01-01T23:59:59.000Z

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


441

The Aesthetics of Remembering 9/11: Towards a Transnational Typology of Memorials  

E-Print Network [OSTI]

a memorial of bronze or granite at first sight representsfixed on a block of local granite with a 6.8-foot glassUpper Palatinate region (granite and glass). 61 The memorial

Gessner, Ingrid

2015-01-01T23:59:59.000Z

442

Remembering Through the Corpus: The Intersection of (Moving) Bodies with Architecture at the Vietnam Veterans Memorial  

E-Print Network [OSTI]

of contact with the black granite memorial wall and wasLin, designer of the black granite memorial wall. Becauseelements: Maya Lin’s granite wall, Frederick Hart’s bronze

Zhu, Ying

2010-01-01T23:59:59.000Z

443

Memory Trace Oblivious Program Execution Department of Computer Science Technical Report CS-TR-5020  

E-Print Network [OSTI]

to the computing platform can perform various physical attacks, including prob- ing memory buses and coldMemory Trace Oblivious Program Execution Department of Computer Science Technical Report CS-TR-5020

Shi, Elaine

444

Suitability of Shape Memory Alloys for vibration isolation with application to launch vehicle payloads  

E-Print Network [OSTI]

This work details an investigation into the suitability of Shape Memory Alloys for the task of vibration isolation based on the similarities between the Shape Memory Alloy pseudoelastic behavior and the softening response of isolators whose response...

Mayes, John Jeramy

2001-01-01T23:59:59.000Z

445

Minimum error discrimination between similarity-transformed quantum states  

SciTech Connect (OSTI)

Using the well-known necessary and sufficient conditions for minimum error discrimination (MED), we extract an equivalent form for the MED conditions. In fact, by replacing the inequalities corresponding to the MED conditions with an equivalent but more suitable and convenient identity, the problem of mixed state discrimination with optimal success probability is solved. Moreover, we show that the mentioned optimality conditions can be viewed as a Helstrom family of ensembles under some circumstances. Using the given identity, MED between N similarity transformed equiprobable quantum states is investigated. In the case that the unitary operators are generating a set of irreducible representation, the optimal set of measurements and corresponding maximum success probability of discrimination can be determined precisely. In particular, it is shown that for equiprobable pure states, the optimal measurement strategy is the square-root measurement (SRM), whereas for the mixed states, SRM is not optimal. In the case that the unitary operators are reducible, there is no closed-form formula in the general case, but the procedure can be applied in each case in accordance to that case. Finally, we give the maximum success probability of optimal discrimination for some important examples of mixed quantum states, such as generalized Bloch sphere m-qubit states, spin-j states, particular nonsymmetric qudit states, etc.

Jafarizadeh, M. A. [Department of Theoretical Physics and Astrophysics, University of Tabriz, Tabriz 51664 (Iran, Islamic Republic of); Institute for Studies in Theoretical Physics and Mathematics, Tehran 19395-1795 (Iran, Islamic Republic of); Research Institute for Fundamental Sciences, Tabriz 51664 (Iran, Islamic Republic of); Sufiani, R. [Department of Theoretical Physics and Astrophysics, University of Tabriz, Tabriz 51664 (Iran, Islamic Republic of); Institute for Studies in Theoretical Physics and Mathematics, Tehran 19395-1795 (Iran, Islamic Republic of); Mazhari Khiavi, Y. [Department of Theoretical Physics and Astrophysics, University of Tabriz, Tabriz 51664 (Iran, Islamic Republic of)

2011-07-15T23:59:59.000Z

446

A surrogate-based uncertainty quantification with quantifiable errors  

SciTech Connect (OSTI)

Surrogate models are often employed to reduce the computational cost required to complete uncertainty quantification, where one is interested in propagating input parameters uncertainties throughout a complex engineering model to estimate responses uncertainties. An improved surrogate construction approach is introduced here which places a premium on reducing the associated computational cost. Unlike existing methods where the surrogate is constructed first, then employed to propagate uncertainties, the new approach combines both sensitivity and uncertainty information to render further reduction in the computational cost. Mathematically, the reduction is described by a range finding algorithm that identifies a subspace in the parameters space, whereby parameters uncertainties orthogonal to the subspace contribute negligible amount to the propagated uncertainties. Moreover, the error resulting from the reduction can be upper-bounded. The new approach is demonstrated using a realistic nuclear assembly model and compared to existing methods in terms of computational cost and accuracy of uncertainties. Although we believe the algorithm is general, it will be applied here for linear-based surrogates and Gaussian parameters uncertainties. The generalization to nonlinear models will be detailed in a separate article. (authors)

Bang, Y.; Abdel-Khalik, H. S. [North Carolina State Univ., Raleigh, NC 27695 (United States)

2012-07-01T23:59:59.000Z

447

Implications of Monte Carlo Statistical Errors in Criticality Safety Assessments  

SciTech Connect (OSTI)

Most criticality safety calculations are performed using Monte Carlo techniques because of Monte Carlo's ability to handle complex three-dimensional geometries. For Monte Carlo calculations, the more histories sampled, the lower the standard deviation of the resulting estimates. The common intuition is, therefore, that the more histories, the better; as a result, analysts tend to run Monte Carlo analyses as long as possible (or at least to a minimum acceptable uncertainty). For Monte Carlo criticality safety analyses, however, the optimization situation is complicated by the fact that procedures usually require that an extra margin of safety be added because of the statistical uncertainty of the Monte Carlo calculations. This additional safety margin affects the impact of the choice of the calculational standard deviation, both on production and on safety. This paper shows that, under the assumptions of normally distributed benchmarking calculational errors and exact compliance with the upper subcritical limit (USL), the standard deviation that optimizes production is zero, but there is a non-zero value of the calculational standard deviation that minimizes the risk of inadvertently labeling a supercritical configuration as subcritical. Furthermore, this value is shown to be a simple function of the typical benchmarking step outcomes--the bias, the standard deviation of the bias, the upper subcritical limit, and the number of standard deviations added to calculated k-effectives before comparison to the USL.

Pevey, Ronald E.

2005-09-15T23:59:59.000Z

448

Plasma dynamics and a significant error of macroscopic averaging  

E-Print Network [OSTI]

The methods of macroscopic averaging used to derive the macroscopic Maxwell equations from electron theory are methodologically incorrect and lead in some cases to a substantial error. For instance, these methods do not take into account the existence of a macroscopic electromagnetic field EB, HB generated by carriers of electric charge moving in a thin layer adjacent to the boundary of the physical region containing these carriers. If this boundary is impenetrable for charged particles, then in its immediate vicinity all carriers are accelerated towards the inside of the region. The existence of the privileged direction of acceleration results in the generation of the macroscopic field EB, HB. The contributions to this field from individual accelerated particles are described with a sufficient accuracy by the Lienard-Wiechert formulas. In some cases the intensity of the field EB, HB is significant not only for deuteron plasma prepared for a controlled thermonuclear fusion reaction but also for electron plasma in conductors at room temperatures. The corrected procedures of macroscopic averaging will induce some changes in the present form of plasma dynamics equations. The modified equations will help to design improved systems of plasma confinement.

Marek A. Szalek

2005-05-22T23:59:59.000Z

449

Error analysis of nuclear forces and effective interactions  

E-Print Network [OSTI]

The Nucleon-Nucleon interaction is the starting point for ab initio Nuclear Structure and Nuclear reactions calculations. Those are effectively carried out via effective interactions fitting scattering data up to a maximal center of mass momentum. However, NN interactions are subjected to statistical and systematic uncertainties which are expected to propagate and have some impact on the predictive power and accuracy of theoretical calculations, regardless on the numerical accuracy of the method used to solve the many body problem. We stress the necessary conditions required for a correct and self-consistent statistical interpretation of the discrepancies between theory and experiment which enable a subsequent statistical error propagation and correlation analysis. We comprehensively discuss an stringent and recently proposed tail-sensitive normality test and provide a simple recipe to implement it. As an application, we analyze the deduced uncertainties and correlations of effective interactions in terms of Moshinsky-Skyrme parameters and effective field theory counterterms as derived from the bare NN potential containing One-Pion-Exchange and Chiral Two-Pion-Exchange interactions inferred from scattering data.

R. Navarro Perez; J. E. Amaro; E. Ruiz Arriola

2014-09-04T23:59:59.000Z

450

Subband coding of monochrome images over binary symmetric channels with error correction  

E-Print Network [OSTI]

for the degree of MASTER OF SCIENCE December 1992 Major Subject: Electrical Engineering SUBBAND CODING OF MONOCHROME IMAGES OVER BINARY SYMMETRIC CHANNELS WITH ERROR CORRECTION A Thesis by DENISE M. SHEPPARD Approved as to style and content by: V.... State diagram analysis of error recovery . B. Codebook design C. Performance results . 16 18 23 29 42 48 V VI ERROR CORRECTION A. Algorithm B. Performance Results CONCLUSION REFERENCES APPENDIX A . APPENDIX B . 52 54 61 67 70...

Sheppard, Denise M

2012-06-07T23:59:59.000Z

451

Method and apparatus for detecting timing errors in a system oscillator  

DOE Patents [OSTI]

A method of detecting timing errors in a system oscillator for an electronic device, such as a power supply, includes the step of comparing a system oscillator signal with a delayed generated signal and generating a signal representative of the timing error when the system oscillator signal is not identical to the delayed signal. An LED indicates to an operator that a timing error has occurred. A hardware circuit implements the above-identified method.

Gliebe, Ronald J. (Library, PA); Kramer, William R. (Bethel Park, PA)

1993-01-01T23:59:59.000Z

452

Dynamically Tunable Memory in Two-Component Gene Circuit  

SciTech Connect (OSTI)

Cell has the potential to remember the environmental conditions for many (10{sup 7}) generations but stochastic fluctuations set a fundamental limit on the stability of this memory. Here we explicitly take the binding-unbinding of macromolecules into account to propose a novel rationale for the protein-protein interaction in cell physiology. Based on the first-exit time and the corresponding deterministic characterization of various genetic circuits, we show that the reversible binding dynamics may stabilize non-genetically inherited cell states, providing a practical strategy for designing robust epigenetic memory.

Ghim, C; Almaas, E

2008-09-05T23:59:59.000Z

453

A Case for Deconstructing Hardware Transactional Memory Systems  

E-Print Network [OSTI]

Major hardware and software vendors are curious about transactional memory (TM), but are understandably cautious about committing to hardware changes. Our thesis is that deconstructing transactional memory into separate, interchangeable components facilitates TM adoption in two ways. First, it aids hardware TM refinement, allowing vendors to adopt TM earlier, knowing that they can more easily refine aspects later. Second, it enables the components to be applied to other uses, including reliability, security, performance, and correctness, providing value even if TM is not widely used. We develop some evidence for our thesis via experience with LogTM variants and preliminary case studies of scalable watchpoints and race recording for deterministic replay. 1

Mark D. Hill; Derek Hower; Kevin E. Moore; Michael M. Swift; Haris Volos; David A. Wood

2007-01-01T23:59:59.000Z

454

Eccentricity Error Correction for Automated Estimation of Polyethylene Wear after Total Hip Arthroplasty  

E-Print Network [OSTI]

Eccentricity Error Correction for Automated Estimation of Polyethylene Wear after Total Hip. Wire markers are typically attached to the polyethylene acetabular component of the prosthesis so

St Andrews, University of

455

E-Print Network 3.0 - analytic error estimates Sample Search...  

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

46 To: Supersite Principal Investigators, Data Managers and Research From: Dr. Paul Solomon, ORD, Dennis Mikel, OAQPS; Mike Jones, OAQPS Summary: of random error (precision)...

456

Efficient Small Area Estimation in the Presence of Measurement Error in Covariates  

E-Print Network [OSTI]

for the four estimators, yi, eYiS, bYiME, bYiSIMEX when the number of small areas is 100, measure- ment error variance Ci = 3 and 2v = 4. k is the percentage of areas having auxiliary information measured with error. : : : : : : : 52 2 Absolute value... 3 Jackknife estimates of the mean squared error of the Lohr-Ybarra estimator bYiME and the SIMEX estimator bYiSIMEX when the num- ber of small areas is 100, measurement error variance Ci = 2 and 2v = 4. k is the percentage of areas having...

Singh, Trijya

2012-10-19T23:59:59.000Z

457

SPPI ORIGINAL PAPER October 11, 2011 GROSS ERRORS IN THE IPCC-AR4  

E-Print Network [OSTI]

SPPI ORIGINAL PAPER October 11, 2011 GROSS ERRORS IN THE IPCC-AR4 REPORT REGARDING PAST & FUTURE FIGURE AND GEORGE WILL QUOTE.....................

Gray, William

458

Anisotropic mesh adaptation for solution of finite element problems using hierarchical edge-based error estimates  

SciTech Connect (OSTI)

We present a new technology for generating meshes minimizing the interpolation and discretization errors or their gradients. The key element of this methodology is construction of a space metric from edge-based error estimates. For a mesh with N{sub h} triangles, the error is proportional to N{sub h}{sup -1} and the gradient of error is proportional to N{sub h}{sup -1/2} which are optimal asymptotics. The methodology is verified with numerical experiments.

Lipnikov, Konstantin [Los Alamos National Laboratory; Agouzal, Abdellatif [UNIV DE LYON; Vassilevski, Yuri [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

459

Correction of motion measurement errors beyond the range resolution of a synthetic aperture radar  

DOE Patents [OSTI]

Motion measurement errors that extend beyond the range resolution of a synthetic aperture radar (SAR) can be corrected by effectively decreasing the range resolution of the SAR in order to permit measurement of the error. Range profiles can be compared across the slow-time dimension of the input data in order to estimate the error. Once the error has been determined, appropriate frequency and phase correction can be applied to the uncompressed input data, after which range and azimuth compression can be performed to produce a desired SAR image.

Doerry, Armin W. (Albuquerque, NM); Heard, Freddie E. (Albuquerque, NM); Cordaro, J. Thomas (Albuquerque, NM)

2008-06-24T23:59:59.000Z

460

Neutron Soft Errors in Xilinx FPGAs at Lawrence Berkeley National Laboratory  

E-Print Network [OSTI]

Quasi-Monoenergetic Neutron Beam from Deuteron Breakup”, inexperiments of atmospheric neutron effects on deep sub-Neutron Soft Errors in Xilinx FPGAs at Lawrence Berkeley

George, Jeffrey S.

2008-01-01T23:59:59.000Z

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


461

Abstract Error Groups Via Jones Unitary Braid Group Representations at q=i  

E-Print Network [OSTI]

In this paper, we classify a type of abstract groups by the central products of dihedral groups and quaternion groups. We recognize them as abstract error groups which are often not isomorphic to the Pauli groups in the literature. We show the corresponding nice error bases equivalent to the Pauli error bases modulo phase factors. The extension of these abstract groups by the symmetric group are finite images of the Jones unitary representations (or modulo a phase factor) of the braid group at q=i or r=4. We hope this work can finally lead to new families of quantum error correction codes via the representation theory of the braid group.

Yong Zhang

2009-02-02T23:59:59.000Z

462

Memory Distortion in People Reporting Abduction by Aliens Susan A. Clancy, Richard J. McNally,  

E-Print Network [OSTI]

Memory Distortion in People Reporting Abduction by Aliens Susan A. Clancy, Richard J. Mc memories of traumatic events that are unlikely to have occurred: abduction by space aliens. A variant to examine false recall and false recognition in 3 groups: people reporting recovered memories of alien

Schacter, Daniel

463

Nanotube Optoelectronic Memory Alexander Star,*, Yu Lu, Keith Bradley, and George Gru1ner  

E-Print Network [OSTI]

Nanotube Optoelectronic Memory Devices Alexander Star,*, Yu Lu, Keith Bradley, and George Gru1ner to fabricate an optoelectronic memory device. Electric charges are created upon optical illumination the fabrication and study of carbon nanotube optoelectronic memory devices. This functional assembly combines

Gruner, George

464

Cultural Capital in Spain'S MeMory WarS Dr. SebaStiaan Faberoberlin College  

E-Print Network [OSTI]

History MeMory trutH Cultural Capital in Spain'S MeMory WarS Dr. SebaStiaan Faberoberlin College Since the late 1990s, Spain has seen a series of public disputes over the historical memory tell it--and the relationship that today's Spain should have with that past. In the past fifteen years

Andrews, Peter B.

465

Anti-forensic resilient memory acquisition Johannes Stttgen a,*, Michael Cohen b  

E-Print Network [OSTI]

Anti-forensic resilient memory acquisition Johannes StĂĽttgen a,*, Michael Cohen b a Department, Germany b Google Inc., Brandschenkestrasse 110, Zurich, Switzerland Keywords: Memory forensics Memory acquisition Anti forensics Live forensics Malware Computer security Information security Incident response a b

Tomkins, Andrew

466

Near-Memory Caching for Improved Energy Consumption  

E-Print Network [OSTI]

opportunities for power/energy reduction. In this paper, we propose a power-aware cached-dynamic-RAM (PA on the average) improvement in the energy-delay product and up to 76 percent (19 percent on the average) savings in energy when compared to a time-out power management technique. Index Terms--Memory design, power

Childers, Bruce

467

Parallel Adaptive Mesh Refinement and Redistribution on Distributed Memory Computers  

E-Print Network [OSTI]

Parallel Adaptive Mesh Refinement and Redistribution on Distributed Memory Computers C. ¨ Ozturan Polytechnic Institute Troy, NY 12181 Abstract A procedure to support parallel refinement and redistribution the required adjacency information. Mesh refinement is done by employing links back to the geometric

Bystroff, Chris

468

!iliii!i!i Machine-Independent Virtual Memory Management  

E-Print Network [OSTI]

half a dozen uniprocessors and multiprocessors including the VAX family of uniproces- sors paging support. Versions of Berkeley UNIX on non-VAX hardware, such as SunOS on the SUN 3 and ACIS 4.2 on the IBM RT PC, actually simu- late internally the VAX memory mapping architecture -- in effect treating

Arpaci-Dusseau, Remzi

469

Thermal Modeling and Management of DRAM Memory , Hongzhong Zheng2  

E-Print Network [OSTI]

the given thermal envelope. Our simulation results show that adaptive core gating improves performance by up- tuating. Intuitively, the program execution is far away from optimal for a given thermal envelope: ThermalThermal Modeling and Management of DRAM Memory Systems Jiang Lin1 , Hongzhong Zheng2 , Zhichun Zhu2

Zhang, Zhao

470

Memory efficient RNA energy landscape exploration -Supplementary Material -  

E-Print Network [OSTI]

Memory efficient RNA energy landscape exploration - Supplementary Material - Martin Mann 1 , Marcel on two different transition models. While the pure barrier tree dynamics (lower plot) resembles correspond to energy sorted ranks. Simulations were started from the unstructured open chain macro-state (oc

Brendel, Volker

471

A network model of parametric working memory. Supplementary Material  

E-Print Network [OSTI]

obeys the current balance equation: CM dVi dt = -gL [Vi - VL]-gESE,i [Vi - VE]-gISI,i [Vi - VIA network model of parametric working memory. Supplementary Material Paul Miller1 , Carlos D Brody2

Brody, Carlos

472

Elizabeth Harvey Memorial Sustainable Development Intern Year End Report  

E-Print Network [OSTI]

Elizabeth Harvey Memorial Sustainable Development Intern Year End Report For the Academic Year 2011 ­ 2012 Submitted May 8th , 2012 to the Bishop's Sustainable Development and Land Use Committee by Lauri Lidstone #12;Sustainable Development Student Intern Report 2011-2012 1 I would like to thank the Elizabeth

473

Memory Power Management via Dynamic Voltage/Frequency Scaling  

E-Print Network [OSTI]

years. In the data center environment, thermal management and power budgeting have become significant transitions [10, 23], or scal- ing active server power proportionally to load [2]. In this paper, we focusMemory Power Management via Dynamic Voltage/Frequency Scaling Howard David, Chris Fallin§, Eugene

McGaughey, Alan

474

Memory Power Management via Dynamic Voltage/Frequency Scaling  

E-Print Network [OSTI]

years. In the data center environment, thermal management and power budgeting have become significant sleep transitions [10, 23], or scal- ing active server power proportionally to load [2]. In this paperMemory Power Management via Dynamic Voltage/Frequency Scaling Howard David, Chris Fallin§, Eugene

Mutlu, Onur

475

fork(), exit(), exec() signals, sockets client/server, shared memory  

E-Print Network [OSTI]

memory semaphores - 2 - #12; µ µ µ UNIX µ µ fork fork µ µ µ fork pid = fork(); fork µµ ( ) µ µ pid - pid (ID) - - pid = 0 ? - 3 - #12;- 4 - #include main() { int pid = 0; printf("hello world\

Triantafillou, Peter

476

Modular Quantum Memories Using Passive Linear Optics and Coherent Feedback  

E-Print Network [OSTI]

Modular Quantum Memories Using Passive Linear Optics and Coherent Feedback Hendra I. Nurdin photon pulsed optical field has a conceptually simple modular realization using only passive linear optics and coherent feedback. We exploit the idea that two decaying optical cavities can be coupled

477

Enhancing Routing Protocol with Memory in Mobile Ad Hoc Networks  

E-Print Network [OSTI]

Enhancing Routing Protocol with Memory in Mobile Ad Hoc Networks Yongjun Dai, Changhee Joo prevalent, TCP performance over mobile ad hoc networks attracts more attention. The earlier studies on TCP in wireless networks have shown that it performs poorly in ad hoc networks. They tackled the problem

Bahk, Saewoong

478

Removing Redundancy and Inconsistency in Memory-Based Collaborative Filtering  

E-Print Network [OSTI]

Removing Redundancy and Inconsistency in Memory- Based Collaborative Filtering Kai Yu Siemens AG, Corporate Technology & University of Munich, Germany kai.yu.external@mchp.siemens. de Xiaowei Xu Information Science Department University of Arkansas at Little Rock xwxu@ualr.edu Anton Schwaighofer Siemens AG

Tresp, Volker

479

Parameter estimation for energy balance models with memory  

E-Print Network [OSTI]

Parameter estimation for energy balance models with memory By Lionel Roques1,*, Micka¨el D parameter estimation for one-dimensional energy balance models with mem- ory (EBMMs) given localized estimate is still possible in certain cases. Keywords: age dating; Bayesian inference; energy balance model

480

Optimized Pre-Copy Live Migration for Memory Intensive Applications  

E-Print Network [OSTI]

Optimized Pre-Copy Live Migration for Memory Intensive Applications Khaled Z. Ibrahim, Steven Hofmeyr, Costin Iancu, Eric Roman Lawrence Berkeley National Laboratory Email: {kzibrahim, shofmeyr and fault tolerance. KVM and Xen use iterative pre-copy approaches which work well in practice

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


481

CoNiGa High Temperature Shape Memory Alloys  

E-Print Network [OSTI]

commercially successful SMAs such as NiTi and Cu-based alloys. In recent years, the CoNiGa system has emerged as a new ferromagnetic shape memory alloy with some compositions exhibiting high martensitic transformation temperatures which makes CoNiGa a potential...

Dogan, Ebubekir

2011-10-21T23:59:59.000Z

482

Towards Optimizing Energy Costs of Algorithms for Shared Memory Architectures  

E-Print Network [OSTI]

Towards Optimizing Energy Costs of Algorithms for Shared Memory Architectures Vijay Anand Korthikanti Department of Computer Science University of Illinois Urbana-Champaign vkortho2@illinois.edu Gul Agha Department of Computer Science University of Illinois Urbana-Champaign agha@illinois.edu ABSTRACT

Marchal, Loris

483

Answer Garden 2: Merging Organizational Memory with Collaborative Help  

E-Print Network [OSTI]

Answer Garden 2: Merging Organizational Memory with Collaborative Help Mark S. Ackerman David W. Mc a collaborative solution to a common problem, that of providing help to distributed users. The Answer Garden 2 detailed descriptions of the collaborative help and collaborative refining facilities in the Answer Garden

McDonald, David W.

484

Statistics Twentyfirst Century Astrometry K. Eichhorn Memorial Lecture  

E-Print Network [OSTI]

Statistics Twenty­first Century Astrometry Heinrich K. Eichhorn Memorial Lecture William Je#erys (bill@astro.as.utexas.edu University at Austin, Abstract. Eichhorn statistics scientific a number of significant contributions statistical treatment of astrometric problems. a movement for the reintroduction

Jefferys, William

485

Hidden State and ShortTerm Memory: A bibliography  

E-Print Network [OSTI]

for hidden markov models. 1993. [ Baum et al., 1970 ] Leonard E. Baum, Ted Petrie, George Soules, and Norman. [ McCallum, 1992 ] R. Andrew McCallum. First results with utile distinction memory for re­ inforcement. [ Moore, 1991 ] Andrew W. Moore. Variable res­ olution dynamic programming: Efficiently learning action

Littman, Michael L.

486

The Impact of Memory Subsystem Resource Sharing on Datacenter Applications  

E-Print Network [OSTI]

The Impact of Memory Subsystem Resource Sharing on Datacenter Applications Lingjia Tang University on five Google datacenter applications: a web search engine, bigtable, content analyzer, image stitching across the PARSEC benchmark suite, we find that across these datacenter ap- plications, there is both

Tomkins, Andrew

487

Large Data Visualization on Distributed Memory Mulit-GPU Clusters  

SciTech Connect (OSTI)

Data sets of immense size are regularly generated on large scale computing resources. Even among more traditional methods for acquisition of volume data, such as MRI and CT scanners, data which is too large to be effectively visualization on standard workstations is now commonplace. One solution to this problem is to employ a 'visualization cluster,' a small to medium scale cluster dedicated to performing visualization and analysis of massive data sets generated on larger scale supercomputers. These clusters are designed to fit a different need than traditional supercomputers, and therefore their design mandates different hardware choices, such as increased memory, and more recently, graphics processing units (GPUs). While there has been much previous work on distributed memory visualization as well as GPU visualization, there is a relative dearth of algorithms which effectively use GPUs at a large scale in a distributed memory environment. In this work, we study a common visualization technique in a GPU-accelerated, distributed memory setting, and present performance characteristics when scaling to extremely large data sets.

Childs, Henry R.

2010-03-01T23:59:59.000Z

488

Materials Selection for Oxide-based Resistive Random Access Memories  

E-Print Network [OSTI]

The energies of atomic processes in resistive random access memories (RRAMs) are calculated for four typical oxides, HfO2, TiO2, Ta 2O5, and Al2O3, to define a materials selection process. O vacancies have the lowest defect formation energy in the O...

Guo, Yuzheng; Robertson, John

2014-12-05T23:59:59.000Z

489

On Open Nesting in Distributed Transactional Memory Alexandru Turcu  

E-Print Network [OSTI]

Systor '12 On Open Nesting in Distributed Transactional Memory Alexandru Turcu Virginia Tech talex (TFA), we add support for open nested transactions. We discuss the mechanisms and performance implications of such nesting, and identify the cases where using open nesting is warranted and the relevant

Ravindran, Binoy

490

Mobile applications constantly demand additional memory, and traditional  

E-Print Network [OSTI]

. This remote access could reduce local storage space, thereby reducing energy demands on the mobile plat- form60 Mobile applications constantly demand additional memory, and traditional designs increase- port connected ubiquitous environments. Engineers attempt to minimize network use because of its

Lee, Hsien-Hsin "Sean"

491

Regenerative memory in time-delayed neuromorphic photonic systems  

E-Print Network [OSTI]

We investigate a regenerative memory based upon a time-delayed neuromorphic photonic oscillator and discuss the link with temporal localized structures. Our experimental implementation is based upon a optoelectronic system composed of a nanoscale nonlinear resonant tunneling diode coupled to a laser that we link to the paradigm of neuronal activity, the FitzHugh-Nagumo model with delayed feedback.

Romeira, B; Figueiredo, José M L; Barland, S; Javaloyes, J

2015-01-01T23:59:59.000Z

492

Practical Memory Leak Detection using Guarded Value-Flow Analysis  

E-Print Network [OSTI]

Verification]: Reliability; D.3.4 [Processors]: Compilers, Mem- ory management; F.3.2 [Semantics of Programming of various program safety properties, including memory safety properties (such as null pointer dereferences as properties of the following form: on any execution of the program, the value v generated by a program event

Rugina, Radu

493

Memory Usage of a Software Communication Architecture Waveform  

E-Print Network [OSTI]

. These characteristics of SDR provide cost savings by ex- tending the life cycle of hardware and provide more capability the number of memory chips in the final hardware design, this leads to lower cost radios that require less processing hardware. Close attention must be paid to the SDR hardware in order to meet battery lifetime

Ellingson, Steven W.

494

DysList: An Annotated Resource of Dyslexic Errors Luz Rello,1  

E-Print Network [OSTI]

of texts written by people with dyslexia. Each of the errors was annotated with a set of characteristics of this kind, especially given the difficulty of finding texts written by people with dyslexia. Keywords: Errors, Dyslexia, Visual, Phonetics, Resource 1. Introduction Dyslexia is a reading and spelling disorder

495

Simple Loran Cycle Error Detection Algorithms for Maritime Harbor Entrance Approach  

E-Print Network [OSTI]

Simple Loran Cycle Error Detection Algorithms for Maritime Harbor Entrance Approach Operations cycle. This paper details and examines some of the algorithms being developed and analyzed by SC127. SC 127 is developing simplified eLoran cycle error detection algorithms for the eLoran HEA MPS. Correct

Stanford University

496

State preservation by repetitive error detection in a superconducting quantum circuit  

E-Print Network [OSTI]

Quantum computing becomes viable when a quantum state can be preserved from environmentally-induced error. If quantum bits (qubits) are sufficiently reliable, errors are sparse and quantum error correction (QEC) is capable of identifying and correcting them. Adding more qubits improves the preservation by guaranteeing increasingly larger clusters of errors will not cause logical failure - a key requirement for large-scale systems. Using QEC to extend the qubit lifetime remains one of the outstanding experimental challenges in quantum computing. Here, we report the protection of classical states from environmental bit-flip errors and demonstrate the suppression of these errors with increasing system size. We use a linear array of nine qubits, which is a natural precursor of the two-dimensional surface code QEC scheme, and track errors as they occur by repeatedly performing projective quantum non-demolition (QND) parity measurements. Relative to a single physical qubit, we reduce the failure rate in retrieving an input state by a factor of 2.7 for five qubits and a factor of 8.5 for nine qubits after eight cycles. Additionally, we tomographically verify preservation of the non-classical Greenberger-Horne-Zeilinger (GHZ) state. The successful suppression of environmentally-induced errors strongly motivates further research into the many exciting challenges associated with building a large-scale superconducting quantum computer.

J. Kelly; R. Barends; A. G. Fowler; A. Megrant; E. Jeffrey; T. C. White; D. Sank; J. Y. Mutus; B. Campbell; Yu Chen; Z. Chen; B. Chiaro; A. Dunsworth; I. -C. Hoi; C. Neill; P. J. J. O'Malley; C. Quintana; P. Roushan; A. Vainsencher; J. Wenner; A. N. Cleland; John M. Martinis

2014-11-26T23:59:59.000Z

497

Distributed Forcing of Forecast and Assimilation Error Systems BRIAN F. FARRELL  

E-Print Network [OSTI]

Distributed Forcing of Forecast and Assimilation Error Systems BRIAN F. FARRELL Division forecast system gov- erning forecast error growth and the tangent linear observer system governing deterministic and stochastic forcings of the forecast and observer systems over a chosen time interval

Farrell, Brian F.

498

Evaluation of servo, geometric and dynamic error sources on five axis high-speed machine tool  

E-Print Network [OSTI]

Many sources of errors exist in the manufacturing process of complex shapes. Some approximations occur at each step from the design geometry to the machined part. The aim of the paper is to present a method to evaluate the effect of high speed and high dynamic load on volumetric errors at the tool center point. The interpolator output signals and the machine encoder signals are recorded and compared to evaluate the contouring errors resulting from each axis follow-up error. The machine encoder signals are also compared to the actual tool center point position as recorded with a non-contact measuring instrument called CapBall to evaluate the total geometric errors. The novelty of the work lies in the method that is proposed to decompose the geometric errors in two categories: the quasi-static geometric errors independent from the speed of the trajectory and the dynamic geometric errors, dependent on the programmed feed rate and resulting from the machine structure deflection during the acceleration of its axes...

Andolfatto, Loďc; Mayer, René

2011-01-01T23:59:59.000Z

499

The Impact of Background Error on Incomplete Observations for 4D-Var Data Assimilation with  

E-Print Network [OSTI]

The Impact of Background Error on Incomplete Observations for 4D-Var Data Assimilation with the FSU on the 4D- Var data assimilation, twin experiments were carried out with the dy- namical core of the new is also investigated. Keywords: Data assimilation, incomplete observations, background error. 1

Navon, Michael

500

Adjoint goal-based error norms for adaptive mesh ocean modelling  

E-Print Network [OSTI]

Adjoint goal-based error norms for adaptive mesh ocean modelling P.W. Power a , M.D. Piggott a,*, F. The use of dynamically-adaptive meshes has many potential advantages but needs to be guided by an error where resolution should be changed. A barotropic wind driven gyre problem is used to demonstrate

Navon, Michael