Sample records for faster analytical querying

  1. Accelerating Network Traffic Analytics Using Query-DrivenVisualization

    SciTech Connect (OSTI)

    Bethel, E. Wes; Campbell, Scott; Dart, Eli; Stockinger, Kurt; Wu,Kesheng

    2006-07-29T23:59:59.000Z

    Realizing operational analytics solutions where large and complex data must be analyzed in a time-critical fashion entails integrating many different types of technology. This paper focuses on an interdisciplinary combination of scientific data management and visualization/analysis technologies targeted at reducing the time required for data filtering, querying, hypothesis testing and knowledge discovery in the domain of network connection data analysis. We show that use of compressed bitmap indexing can quickly answer queries in an interactive visual data analysis application, and compare its performance with two alternatives for serial and parallel filtering/querying on 2.5 billion records worth of network connection data collected over a period of 42 weeks. Our approach to visual network connection data exploration centers on two primary factors: interactive ad-hoc and multiresolution query formulation and execution over n dimensions and visual display of then-dimensional histogram results. This combination is applied in a case study to detect a distributed network scan and to then identify the set of remote hosts participating in the attack. Our approach is sufficiently general to be applied to a diverse set of data understanding problems as well as used in conjunction with a diverse set of analysis and visualization tools.

  2. Effective March 26, 2012, "Order History" in Marketplace will be replaced with "Order Query" a faster, easier way to lookup past order information.

    E-Print Network [OSTI]

    California at San Diego, University of

    Orders or Invoices. 2. What are you searching for? Enter key terms like Requisition/PO Numbers criteria entered. Filter query criteria after search is performed. In addition to the extensive Advanced, a Supplier name or a Catalog number Hint: Click "Query" for a complete list of available search terms. 3

  3. Network Traffic Analysis With Query Driven VisualizationSC 2005HPC Analytics Results

    SciTech Connect (OSTI)

    Stockinger, Kurt; Wu, Kesheng; Campbell, Scott; Lau, Stephen; Fisk, Mike; Gavrilov, Eugene; Kent, Alex; Davis, Christopher E.; Olinger,Rick; Young, Rob; Prewett, Jim; Weber, Paul; Caudell, Thomas P.; Bethel,E. Wes; Smith, Steve

    2005-09-01T23:59:59.000Z

    Our analytics challenge is to identify, characterize, and visualize anomalous subsets of large collections of network connection data. We use a combination of HPC resources, advanced algorithms, and visualization techniques. To effectively and efficiently identify the salient portions of the data, we rely on a multi-stage workflow that includes data acquisition, summarization (feature extraction), novelty detection, and classification. Once these subsets of interest have been identified and automatically characterized, we use a state-of-the-art-high-dimensional query system to extract data subsets for interactive visualization. Our approach is equally useful for other large-data analysis problems where it is more practical to identify interesting subsets of the data for visualization than to render all data elements. By reducing the size of the rendering workload, we enable highly interactive and useful visualizations. As a result of this work we were able to analyze six months worth of data interactively with response times two orders of magnitude shorter than with conventional methods.

  4. Advanced Query for Query Developers

    E-Print Network [OSTI]

    Shull, Kenneth R.

    at the front of the row and using the Action drop down menu. HOT Tip! Only Private queries can be saved or private. HOT Tip! Save your queries into a Favorites folder by selecting them in the check box to another user. You should save a Public query as a Private one and then can save/share it with another user

  5. Faster than Light Quantum Communication

    E-Print Network [OSTI]

    A. Y. Shiekh

    2008-04-05T23:59:59.000Z

    Faster than light communication might be possible using the collapse of the quantum wave-function without any accompanying paradoxes.

  6. Which is faster: Bowtie2GP > Bowtie > Bowtie2 > BWA W. B. Langdon

    E-Print Network [OSTI]

    Fernandez, Thomas

    Which is faster: Bowtie2GP > Bowtie > Bowtie2 > BWA W. B. Langdon Dept. of Computer Science alignment tool Bowtie2 [RN/12/09, Sect. 5.3]. We find it runs more than four times faster than-ended DNA sequence, Solexa nextgen NGS, sequence query, Smith-Waterman, Bowtie2GP, fuzzy string match- ing

  7. Optimization Online - Faster convergence rates of relaxed ...

    E-Print Network [OSTI]

    Damek Davis

    2014-07-19T23:59:59.000Z

    Jul 19, 2014 ... Faster convergence rates of relaxed Peaceman-Rachford and ADMM under regularity assumptions. Damek Davis (damek ***at***...

  8. Consistent Query Answering Of Conjunctive Queries Under Primary Key Constraints

    E-Print Network [OSTI]

    Pema, Enela

    2014-01-01T23:59:59.000Z

    Queries and Primary Key Constraints . . . . . . . . . .of Employee w.r.t. the primary key SSN ? {name, salary} . .query answering under primary keys: a characterization of

  9. Query Optimization Techniques Class Hierarchies

    E-Print Network [OSTI]

    Mannheim, Universität

    Query Optimization Techniques Exploiting Class Hierarchies Sophie Cluet 1 Guido Moerkotte 2 1 INRIA Since the introduction of object base management systems (OBMS), many query optimization techniques tailored for object query languages have been proposed. They adapt known optimization techniques

  10. Compressed bitmap indices for efficient query processing

    SciTech Connect (OSTI)

    Wu, Kesheng; Otoo, Ekow; Shoshani, Arie

    2001-09-30T23:59:59.000Z

    Many database applications make extensive use of bitmap indexing schemes. In this paper, we study how to improve the efficiencies of these indexing schemes by proposing new compression schemes for the bitmaps. Most compression schemes are designed primarily to achieve good compression. During query processing they can be orders of magnitude slower than their uncompressed counterparts. The new schemes are designed to bridge this performance gap by reducing compression effectiveness and improving operation speed. In a number of tests on both synthetic data and real application data, we found that the new schemes significantly outperform the well-known compression schemes while using only modestly more space. For example, compared to the Byte-aligned Bitmap Code, the new schemes are 12 times faster and it uses only 50 percent more space. The new schemes use much less space(<30 percent) than the uncompressed scheme and are faster in a majority of the test cases.

  11. Indexing and Querying Avishek Anand

    E-Print Network [OSTI]

    Nejdl, Wolfgang

    ("spears" AND "britney") OR ("lady" AND "gaga") Phrase queries -- entire phrase present in the same order

  12. Query Racing: Fast Completeness Certification of Query Results

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    in an untrusted DBMS. Our main contribution is the concept of "Query Race": we split up a general query require neither previous knowledge of queries nor specific support by the DBMS. We validate our approach been performed is a much harder task, if we intend to maintain DBMS-level efficiency. Many proposal can

  13. Leveraging History for Faster Sampling of Online Social Networks

    E-Print Network [OSTI]

    Zhou, Zhuojie; Das, Gautam

    2015-01-01T23:59:59.000Z

    How to enable efficient analytics over such data has been an increasingly important research problem. Given the sheer size of such social networks, many existing studies resort to sampling techniques that draw random nodes from an online social network through its restrictive web/API interface. Almost all of them use the exact same underlying technique of random walk - a Markov Chain Monte Carlo based method which iteratively transits from one node to its random neighbor. Random walk fits naturally with this problem because, for most online social networks, the only query we can issue through the interface is to retrieve the neighbors of a given node (i.e., no access to the full graph topology). A problem with random walks, however, is the "burn-in" period which requires a large number of transitions/queries before the sampling distribution converges to a stationary value that enables the drawing of samples in a statistically valid manner. In this paper, we consider a novel problem of speeding up the fundamen...

  14. Faster Query Answering in Probabilistic Databases using Read-Once Functions

    E-Print Network [OSTI]

    Anderson, Richard

    .4 (a) R = a1 w1 b1 w2 a2 w3 S = a1 c1 v1 b1 c1 v2 a2 c2 v3 a2 d2 v4 T = c1 u1 c2 u2 d2 u3 (b) Q() : -R

  15. HDF5-FastQuery: Accelerating Complex Queries on HDF Datasets UsingFast Bitmap Indices

    SciTech Connect (OSTI)

    Gosink, Luke; Shalf, John; Stockinger, Kurt; Wu, Kesheng; Bethel,Wes

    2005-12-07T23:59:59.000Z

    Large scale scientific data is often stored in scientific data formats such as FITS, netCDF and HDF. These storage formats are of particular interest to the scientific user community since they provide multi-dimensional storage and retrieval. However, one of the drawbacks of these storage formats is that they do not support semantic indexing which is important for interactive data analysis where scientists look for features of interests such as ''Find all supernova explosions where energy >105 and temperature >106''. In this paper we present a novel approach called HDF5-FastQuery to accelerate the data access of large HDF5 files by introducing multi-dimensional semantic indexing. Our implementation leverages an efficient indexing technology called ''bitmapindexing'' that has been widely used in the database community. Bitmapindices are especially well suited for interactive exploration of large-scale read-only data. Storing the bitmap indices into the HDF5 file has the following advantages: (a) Significant performance speedup of accessing subsets of multi-dimensional data and (b) portability of the indices across multiple computer platforms. We will present an API that simplifies the execution of queries on HDF5 files for general scientific applications and data analysis. The design is flexible enough to accommodate the use of arbitrary indexing technology for semantic range queries. We will also provide a detailed performance analysis of HDF5-FastQuery for both synthetic and scientific data. The results demonstrate that our proposed approach for multi-dimensional queries is up to a factor of 2 faster than HDF5.

  16. HDF5-FastQuery: Accelerating Complex Queries on HDF Datasets usingFast Bitmap Indices

    SciTech Connect (OSTI)

    Gosink, Luke; Shalf, John; Stockinger, Kurt; Wu, Kesheng; Bethel,Wes

    2006-03-30T23:59:59.000Z

    Large scale scientific data is often stored in scientific data formats such as FITS, netCDF and HDF. These storage formats are of particular interest to the scientific user community since they provide multi-dimensional storage and retrieval. However, one of the drawbacks of these storage formats is that they do not support semantic indexing which is important for interactive data analysis where scientists look for features of interests such as ''Find all supernova explosions where energy > 10{sup 5} and temperature > 10{sup 6}''. In this paper we present a novel approach called HDF5-FastQuery to accelerate the data access of large HDF5 files by introducing multi-dimensional semantic indexing. Our implementation leverages an efficient indexing technology called bitmap indexing that has been widely used in the database community. Bitmap indices are especially well suited for interactive exploration of large-scale read only data. Storing the bitmap indices into the HDF5 file has the following advantages: (a) Significant performance speedup of accessing subsets of multi-dimensional data and (b) portability of the indices across multiple computer platforms. We will present an API that simplifies the execution of queries on HDF5 files for general scientific applications and data analysis. The design is flexible enough to accommodate the use of arbitrary indexing technology for semantic range queries. We will also provide a detailed performance analysis of HDF5-FastQuery for both synthetic and scientific data. The results demonstrate that our proposed approach for multi-dimensional queries is up to a factor of 2 faster than HDF5.

  17. A Faster Primal Network Simplex Algorithm

    E-Print Network [OSTI]

    Aggarwal, Charu C.

    We present a faster implementation of the polynomial time primal simplex algorithm due to Orlin [23]. His algorithm requires O(nm min{log(nC), m log n}) pivots and O(n2 m ??n{log nC, m log n}) time. The bottleneck operations ...

  18. Towards Efficient Query Processing on Massive Time-Evolving Graphs

    E-Print Network [OSTI]

    Miller, John A.

    Email: {ar, ara, laks, jam}@cs.uga.edu Abstract--Time evolving graph (TEG) is increasingly being used on massive TEGs is central to building powerful analytic applications for these domains. Unfortunately effective for processing massive TEGs. Towards designing scalable mechanisms for answering TEG queries

  19. HYPERION/ODS MODIFYING CANNED QUERIES

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    HYPERION/ODS MODIFYING CANNED QUERIES **Quick review of the Hyperion Query Pane: Sections: Where, Criteria, Views and Joins. Hyperion/ODS Modifying Canned Queries 1 #12;What Canned Queries are Available Note: Go to http://ods.binghamton.edu to view the canned query support documentation for detailed

  20. Query | Department of Energy

    Office of Environmental Management (EM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM615_CostNSAR - TProcuring SolarNo. 195 -PuebloEnergy AprilQuerylQuery

  1. On Cartesian trees and range minimum queries

    E-Print Network [OSTI]

    Demaine, Erik D.

    We present new results on Cartesian trees with applications in range minimum queries and bottleneck edge queries. We introduce a cache-oblivious Cartesian tree for solving the range minimum query problem, a Cartesian tree ...

  2. Universit at Konstanz Query Deforestation

    E-Print Network [OSTI]

    Scholl, Marc H.

    Universit¨ at Konstanz Query Deforestation Torsten Grust Marc H. Scholl Konstanzer Schriften: http://www.informatik.uni--konstanz.de/Schriften #12; Query Deforestation Torsten Grust Marc H. Scholl pursues the goal of employing foldr­build deforestation for the derivation of eOEcient streaming programs

  3. Top-N Query: Query Language, Distance Function and Processing Strategies

    E-Print Network [OSTI]

    Meng, Weiyi

    Top-N Query: Query Language, Distance Function and Processing Strategies Yuxi Chen, Weiyi Meng@cs.binghamton.edu Abstract. The top-N query problem is to find the N results that satisfy the query condition the best and products are sold on the Internet. This paper addresses three important issues related to the top-N query

  4. Hot water can freeze faster than cold?!?

    E-Print Network [OSTI]

    Monwhea Jeng

    2005-12-29T23:59:59.000Z

    We review the Mpemba effect, where intially hot water freezes faster than initially cold water. While the effect appears impossible at first sight, it has been seen in numerous experiments, was reported on by Aristotle, Francis Bacon, and Descartes, and has been well-known as folklore around the world. It has a rich and fascinating history, which culminates in the dramatic story of the secondary school student, Erasto Mpemba, who reintroduced the effect to the twentieth century scientific community. The phenomenon, while simple to describe, is deceptively complex, and illustrates numerous important issues about the scientific method: the role of skepticism in scientific inquiry, the influence of theory on experiment and observation, the need for precision in the statement of a scientific hypothesis, and the nature of falsifiability. We survey proposed theoretical mechanisms for the Mpemba effect, and the results of modern experiments on the phenomenon. Studies of the observation that hot water pipes are more likely to burst than cold water pipes are also described.

  5. Contextual Query Using Bell Tests

    E-Print Network [OSTI]

    Joao Barros; Zeno Toffano; Youssef Meguebli; Bich-Lin Doan

    2013-09-30T23:59:59.000Z

    Tests are essential in Information Retrieval and Data Mining in order to evaluate the effectiveness of a query. An automatic measure tool intended to exhibit the meaning of words in context has been developed and linked with Quantum Theory, particularly entanglement. "Quantum like" experiments were undertaken on semantic space based on the Hyperspace Analogue Language (HAL) method. A quantum HAL model was implemented using state vectors issued from the HAL matrix and query observables, testing a wide range of windows sizes. The Bell parameter S, associating measures on two words in a document, was derived showing peaks for specific window sizes. The peaks show maximum quantum violation of the Bell inequalities and are document dependent. This new correlation measure inspired by Quantum Theory could be promising for measuring query relevance.

  6. Constrained Querying of Multimedia Databases

    E-Print Network [OSTI]

    Vitter, Jeffrey Scott; Natsev, Apostol; Smith, John R.; Chang, Yuan-Chi; Li, Chung-Sheng

    2001-01-01T23:59:59.000Z

    for joining fuzzy result sets. 1.3.1. Multimedia querying The problem of searching multimedia data has received considerable attention in the last few years. The early image query systems, such as IBMs QBIC,14,15,3 MITs Photobook,16,5 the Virage system,4 etc... size size distance motion directional motion motion positional order order order length 0.1 0.3 0.6 0.5 0.5 0.50.50.50.5 Figure 3. Example of a concept representation from the sports video domain. 4. RESEARCH ISSUES In this section, we investigate...

  7. On Querying OBO Ontologies Using a DAG Pattern Query Language

    E-Print Network [OSTI]

    Gupta, Amarnath

    }@sdsc.edu Abstract. The Open Biomedical Ontologies (OBO) is a consortium that serves as a repository of ontologies and query evaluation techniques for the retrieval and manip- ulation of graph-structured data have been investigated since the late 80s [1,2], through the era of object-oriented data models [3,4,5] up to the more

  8. IT Licentiate theses Query Authentication and

    E-Print Network [OSTI]

    Flener, Pierre

    IT Licentiate theses 2008-002 Query Authentication and Data Confidentiality in Wireless Sensor of Licentiate of Philosophy in Computer Science at Uppsala University 2008 #12;Query Authentication and Data

  9. Assisting Web Search Using Query Suggestion Based on Word Similarity Measure and Query Modification

    E-Print Network [OSTI]

    Ng, Yiu-Kai Dennis

    . For example, when the word "Tiger" is entered by a user, current web search engines are mostly focusedAssisting Web Search Using Query Suggestion Based on Word Similarity Measure and Query Modification search engines is query suggestion (QS), which assists users in formulating keyword queries by suggesting

  10. Dynamic Query Forms for Database Queries Liang Tang, Tao Li, Yexi Jiang, and Zhiyuan Chen

    E-Print Network [OSTI]

    Li, Tao

    queries on databases. However, the creation of customized queries totally depends on users' manual editing. Different from traditional document retrieval, users in database Liang Tang, Tao Li, and Yexi Jiang1 Dynamic Query Forms for Database Queries Liang Tang, Tao Li, Yexi Jiang, and Zhiyuan Chen

  11. Using Bitmap Indexing Technology for Combined Numerical and TextQueries

    SciTech Connect (OSTI)

    Stockinger, Kurt; Cieslewicz, John; Wu, Kesheng; Rotem, Doron; Shoshani, Arie

    2006-10-16T23:59:59.000Z

    In this paper, we describe a strategy of using compressedbitmap indices to speed up queries on both numerical data and textdocuments. By using an efficient compression algorithm, these compressedbitmap indices are compact even for indices with millions of distinctterms. Moreover, bitmap indices can be used very efficiently to answerBoolean queries over text documents involving multiple query terms.Existing inverted indices for text searches are usually inefficient forcorpora with a very large number of terms as well as for queriesinvolving a large number of hits. We demonstrate that our compressedbitmap index technology overcomes both of those short-comings. In aperformance comparison against a commonly used database system, ourindices answer queries 30 times faster on average. To provide full SQLsupport, we integrated our indexing software, called FastBit, withMonetDB. The integrated system MonetDB/FastBit provides not onlyefficient searches on a single table as FastBit does, but also answersjoin queries efficiently. Furthermore, MonetDB/FastBit also provides avery efficient retrieval mechanism of result records.

  12. Query Answering in Data Integration Systems

    E-Print Network [OSTI]

    Salloum, Mariam

    2011-01-01T23:59:59.000Z

    the AbeBooks.com data collection. Data Integration Systemquery plans for data integration. In Data Engineering, 2002.Recursive query plans for data integration. Journal of Logic

  13. Qunits: queried units in database search

    E-Print Network [OSTI]

    Nandi, Arnab

    2009-01-01T23:59:59.000Z

    Keyword search against structured databases has become a popular topic of investigation, since many users find structured queries too hard to express, and enjoy the freedom of a ``Google-like'' query box into which search terms can be entered. Attempts to address this problem face a fundamental dilemma. Database querying is based on the logic of predicate evaluation, with a precisely defined answer set for a given query. On the other hand, in an information retrieval approach, ranked query results have long been accepted as far superior to results based on boolean query evaluation. As a consequence, when keyword queries are attempted against databases, relatively ad-hoc ranking mechanisms are invented (if ranking is used at all), and there is little leverage from the large body of IR literature regarding how to rank query results. Our proposal is to create a clear separation between ranking and database querying. This divides the problem into two parts, and allows us to address these separately. The first tas...

  14. Query

    Office of Environmental Management (EM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM615_CostNSAR - TProcuring SolarNo. 195 -PuebloEnergy AprilQueryl

  15. BayesDB : querying the probable implications of tabular data

    E-Print Network [OSTI]

    Baxter, Jay

    2014-01-01T23:59:59.000Z

    BayesDB, a Bayesian database table, lets users query the probable implications of their tabular data as easily as an SQL database lets them query the data itself. Using the built-in Bayesian Query Language (BQL), users ...

  16. Reverse Top-k Queries [DRAFT VERSION

    E-Print Network [OSTI]

    Reverse Top-k Queries [DRAFT VERSION] Akrivi Vlachou # , Christos Doulkeridis # , Yannis Kotidis become essential for many applications that return to the user only the top-k objects based on the individual user's preferences. Top-k queries have been mainly studied from the perspective of the user

  17. Large-Scale Continuous Subgraph Queries on Streams

    SciTech Connect (OSTI)

    Choudhury, Sutanay; Holder, Larry; Chin, George; Feo, John T.

    2011-11-30T23:59:59.000Z

    Graph pattern matching involves finding exact or approximate matches for a query subgraph in a larger graph. It has been studied extensively and has strong applications in domains such as computer vision, computational biology, social networks, security and finance. The problem of exact graph pattern matching is often described in terms of subgraph isomorphism which is NP-complete. The exponential growth in streaming data from online social networks, news and video streams and the continual need for situational awareness motivates a solution for finding patterns in streaming updates. This is also the prime driver for the real-time analytics market. Development of incremental algorithms for graph pattern matching on streaming inputs to a continually evolving graph is a nascent area of research. Some of the challenges associated with this problem are the same as found in continuous query (CQ) evaluation on streaming databases. This paper reviews some of the representative work from the exhaustively researched field of CQ systems and identifies important semantics, constraints and architectural features that are also appropriate for HPC systems performing real-time graph analytics. For each of these features we present a brief discussion of the challenge encountered in the database realm, the approach to the solution and state their relevance in a high-performance, streaming graph processing framework.

  18. Clustering for Faster Network Simplex Pivots David Eppstein

    E-Print Network [OSTI]

    Eppstein, David

    Clustering for Faster Network Simplex Pivots David Eppstein Department of Information and Computer network simplex algo- rithm for minimum cost flow, and for pivot execution in the dual net- work simplex simplex algo- rithms for generalized flow, shortest paths with negative edges, maxi- mum flow

  19. Faster Valuation of Financial Derivatives S. Paskov \\Lambda

    E-Print Network [OSTI]

    methods with Monte Carlo methods on the valuation of financial derivatives. We use a CollateralizedFaster Valuation of Financial Derivatives S. Paskov \\Lambda Department of Computer Science Columbia financial instruments. Vast sums are spent annually on these methods. Monte Carlo methods use random (or

  20. Faster Valuation of Financial Derivatives Department of Computer Science

    E-Print Network [OSTI]

    Papageorgiou, Anargyros

    Faster Valuation of Financial Derivatives S. Paskov Department of Computer Science Columbia instruments. Vast sums are spent annually on these methods. Monte Carlo methods use random (or more precisely discrepancy point sets are known. We compared the e cacy of low discrepancy methods with Monte Carlo methods

  1. A Faster Hardware Implementation of RSA Ajay C Shantilal

    E-Print Network [OSTI]

    1 A Faster Hardware Implementation of RSA Algorithm Ajay C Shantilal Department of Electrical- cation systems. Central tools for achieving system security are cryptographic algorithms. For performance at the Department of Electrical & Computer Engineering, Oregon State University, Corvallis, Oregon 97331. E

  2. Fault Tolerant Evaluation of Continuous Selection Queries over Sensor Data

    E-Print Network [OSTI]

    Lazaridis, Iosif; Han, Qi; Mehrotra, Sharad; Venkatasubramanian, Nalini

    2009-01-01T23:59:59.000Z

    Evaluation of Continuous Selection Queries over Sensor Dataevaluation of continuous selection queries (CSQs) over sensor-sensor suffices and there is no Fault Tolerant Evaluation of

  3. Classifying Web Search Queries to Identify High Revenue Generating Customers

    E-Print Network [OSTI]

    Jansen, James

    searching, the set of terms for which a user searches is called the query. If a user enters a query and then clicks on a result, these query terms are embedded within the URL that is passed from the search engineClassifying Web Search Queries to Identify High Revenue Generating Customers Adan Ortiz-Cordova 329

  4. Learning Semantic Query Suggestions Edgar Meij1

    E-Print Network [OSTI]

    de Rijke, Maarten

    Learning Semantic Query Suggestions Edgar Meij1 , Marc Bron1 , Laura Hollink2 , Bouke Huurnink1 , and Maarten de Rijke1 1 ISLA, University of Amsterdam, Science Park 107, 1098 XG Amsterdam {edgar

  5. Querying Schemas With Access Restrictions

    E-Print Network [OSTI]

    Benedikt, Michael; Ley, Clemens

    2012-01-01T23:59:59.000Z

    We study verification of systems whose transitions consist of accesses to a Web-based data-source. An access is a lookup on a relation within a relational database, fixing values for a set of positions in the relation. For example, a transition can represent access to a Web form, where the user is restricted to filling in values for a particular set of fields. We look at verifying properties of a schema describing the possible accesses of such a system. We present a language where one can describe the properties of an access path, and also specify additional restrictions on accesses that are enforced by the schema. Our main property language, AccLTL, is based on a first-order extension of linear-time temporal logic, interpreting access paths as sequences of relational structures. We also present a lower-level automaton model, Aautomata, which AccLTL specifications can compile into. We show that AccLTL and A-automata can express static analysis problems related to "querying with limited access patterns" that h...

  6. Failure Analysis in Query Construction: Data and Analysis from A Large Sample of Web Queries

    E-Print Network [OSTI]

    Jansen, James

    more details are on its Web site. Excite searches are based on the exact terms that a user enters in the query, however, capitalization is disregarded. Stemming is not available. Multiple term searches return,473 queries from 18,113 users of Excite, a major Web search engine. Given that many digital libraries

  7. Query Plans for Conventional and Temporal Queries Involving Duplicates and Ordering

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    substantially from built- in temporal support in the DBMS. To achieve this, temporal query representation for providing temporal support both via a stand-alone temporal DBMS and via a layer on top of a conventional DBMS. By capturing duplicate removal and retention and order preservation for all queries, as well

  8. Query optimization in nested relational databases

    E-Print Network [OSTI]

    Rathakrishnan, Balaji

    1992-01-01T23:59:59.000Z

    120 75 Fig. 5. Example for nest 20 this does not apply to nests involving multiple attributes [5]. 3. An unnest operator is an inverse of the nest operator. That is, p[&'](~[&'= &](ff)) = & 4. A nest operator is not always an inverse... IV THE EXTENDED RECURSIVE ALGEBRA . A. The algebra 1 2 3 4 16 16 16 16 18 20 22 24 24 27 28 29 29 34 39 43 44 44 CHAPTER Page V QUERY OPTIMIZATION IN RELATIONAL DATABASES . . 54 A. Steps in query processing . B. Algebraic...

  9. Query-based database policy assurance using semantic web technologies

    E-Print Network [OSTI]

    Soltren, Jos Hiram

    2009-01-01T23:59:59.000Z

    In this thesis, we present a novel approach to database security which looks at queries instead of the database tables themselves. In doing so, we use a number of Semantic Web technologies to define rules, translate queries, ...

  10. Querying Provenance Information in Distributed Environments Jing Zhao*, Yogesh Simmhan

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    provenance repository shared by that collaboration, while a smart power grid workflow that makes city formalize: provenance retrieval query and provenance filter query. Our problem is motivated by Smart

  11. On the Equivalence of Distributed Systems with Queries and Communication$

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    On the Equivalence of Distributed Systems with Queries and Communication$ Serge Abiteboula , Balder a common goal, such as eval- uating some query. We study the equivalence of such systems. We model for performing tasks such as sending, receiving and querying data. As our model is quite general, the equivalence

  12. On the Equivalence of Distributed Systems with Queries and Communication

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    On the Equivalence of Distributed Systems with Queries and Communication Serge Abiteboul INRIA, such as evaluate some query. We study the equivalence of such systems. We model a dis- tributed system such as sending, receiving and querying data. As our model is quite general, the equivalence problem turns out

  13. Roadmap Query for Sensor Network Assisted Navigation in Dynamic Environments

    E-Print Network [OSTI]

    Lu, Chenyang

    Roadmap Query for Sensor Network Assisted Navigation in Dynamic Environments Sangeeta Bhattacharya approach that integrates a roadmap based navigation algorithm with a novel WSN query protocol called Roadmap Query (RQ). RQ enables collection of frequent, up-to- date information about the surrounding

  14. Asymmetric Structure-Preserving Subgraph Queries for Large Graphs

    E-Print Network [OSTI]

    Choi, Byron "Koon Kau"

    Asymmetric Structure-Preserving Subgraph Queries for Large Graphs Zhe Fan1 Byron Choi1 Jianliang Xu the novel cyclic group based encryption so that query processing is transformed into a series of private are effective. I. INTRODUCTION Subgraph queries (via subgraph isomorphism) are a fun- damental and powerful

  15. A Study of Query Length Avi Arampatzis1

    E-Print Network [OSTI]

    Arampatzis, Avi

    length, and fit power-law and Poisson distribu- tions to four different query sets. We provide and a power-law distribution for longer queries, that better fits real query length distributions than earlier proposals. Categories and Subject Descriptors: H.3 [Information Storage and Re- trieval]: H.3.3 Information

  16. A Simple Model for Classifying Web Queries by User Intent

    E-Print Network [OSTI]

    Rosso, Paolo

    Valncia, Spain 3 NLE Lab.- ELiRF, Universitat Politcnica de Valncia, Spain 4 PRHLT, Universitat query classification, User intent, Query analysis 1 Introduction Web Search Engines (WSEs) are the most in an interaction with a Web Search Engine. Query Classification based on user intent is different from traditional

  17. Query Suggestions for Mobile Search: Understanding Usage Patterns

    E-Print Network [OSTI]

    Tomkins, Andrew

    Inc 1600 Amphitheatre Parkway, Mountain View, CA shumeet@google.com ABSTRACT Entering search terms that users who were asked to enter queries on a search interface with query suggestions rated their workload heavily on suggestions if they are provided. Users who were asked to enter queries on a search interface

  18. XQzip: Querying Compressed XML Using Structural Indexing

    E-Print Network [OSTI]

    Ng, Wilfred Siu Hung

    effective XML compressors, such as XMill, have been recently proposed to solve this data inflation problem years, many XML compressors have been proposed to solve this data inflation problem. There are two types, they do not address the problem of running queries on com- pressed XML data. More recently, some

  19. Query Deforestation Torsten Grust Marc H. Scholl

    E-Print Network [OSTI]

    Grust, Torsten

    Query Deforestation Torsten Grust Marc H. Scholl 68/1998 Faculty of Mathematics and Computer foldr­build deforestation for the derivation of eOEcient streaming programs ?? programs that do the deforestation idea amenable to a wide range of type constructors and operators. In addition to the removal

  20. Value of Faster Computation for Power Grid Operation

    SciTech Connect (OSTI)

    Chen, Yousu; Huang, Zhenyu; Elizondo, Marcelo A.

    2012-09-30T23:59:59.000Z

    As a result of the grid evolution meeting the information revolution, the power grid is becoming far more complex than it used to be. How to feed data in, perform analysis, and extract information in a real-time manner is a fundamental challenge in todays power grid operation, not to mention the significantly increased complexity in the smart grid environment. Therefore, high performance computing (HPC) becomes one of the advanced technologies used to meet the requirement of real-time operation. This paper presents benefit case studies to show the value of fast computation for operation. Two fundamental operation functions, state estimation (SE) and contingency analysis (CA), are used as examples. In contrast with todays tools, fast SE can estimate system status in a few secondscomparable to measurement cycles. Fast CA can solve more contingencies in a shorter period, reducing the possibility of missing critical contingencies. The benefit case study results clearly show the value of faster computation for increasing the reliability and efficiency of power system operation.

  1. Data Analytics

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management Fermi SitePARTOfficeOctoberDaniel Wood DarkDataAnalytics

  2. Variable Interactions in Query-Driven Visualization

    SciTech Connect (OSTI)

    Bethel, E. Wes; Gosink, Luke J.; Anderson, John C.; Joy, Kenneth I.

    2007-10-25T23:59:59.000Z

    One fundamental element of scientific inquiry is discoveringrelationships, particularly the interactions between different variablesin observed or simulated phenomena. Building upon our prior work in thefield of Query-Driven Visualization, where visual data analysisprocessing is focused on subsets of large data deemed to be"scientifically interesting," this new work focuses on a novel knowledgediscovery capability suitable for use with petascale class datasets. Itenables visual presentation of the presence or absence of relationships(correlations) between variables in data subsets produced by Query-Drivenmethodologies. This technique holds great potential for enablingknowledge discovery from large and complex datasets currently emergingfrom SciDAC and INCITE projects. It is sufficiently generally to beapplicable to any time of complex, time-varying, multivariate data fromstructured, unstructured or adaptive grids.

  3. Energy transport faster than light in good conductors and superconductors

    E-Print Network [OSTI]

    Z. Y. Wang

    2012-02-09T23:59:59.000Z

    People need a model to study tachyons whose prediction can be tested easily. The dispersion relation w^2=k^2C^2-a^2C^2 of a low-frequency electromagnetic field in good conductors is equivalent to the energy-momentum equation E^2=p^2C^2-m^2C^4 of a tachyon where the proportionality coefficient is h^2. An experiment in 1980s to measure the phase velocity Vp [1] can be regarded as an indirect evidence of the superluminal velocity V>>c of those photons just equals the rate of energy flow S/w of the field.Instability of the tachyonic field corresponds to the Joule heat. To detect the speed of energy is difficult and we plan to modulate signals to observe the information velocity (speed of points of non-analyticity)[2].

  4. Query-Efficient Locally Decodable Codes of Subexponential Length

    E-Print Network [OSTI]

    Chee, Yeow Meng; Ling, San; Wang, Huaxiong; Zhang, Liang Feng

    2010-01-01T23:59:59.000Z

    We develop the algebraic theory behind the constructions of Yekhanin (2008) and Efremenko (2009), in an attempt to understand the ``algebraic niceness'' phenomenon in $\\mathbb{Z}_m$. We show that every integer $m = pq = 2^t -1$, where $p$, $q$ and $t$ are prime, possesses the same good algebraic property as $m=511$ that allows savings in query complexity. We identify 50 numbers of this form by computer search, which together with 511, are then applied to gain improvements on query complexity via Itoh and Suzuki's composition method. More precisely, we construct a $3^{\\lceil r/2\\rceil}$-query LDC for every positive integer $rLDC for every integer $r\\geq 104$, both of length $N_{r}$, improving the $2^r$ queries used by Efremenko (2009) and $3\\cdot 2^{r-2}$ queries used by Itoh and Suzuki (2010). We also obtain new efficient private information retrieval (PIR) schemes from the new query-efficient LDCs.

  5. Top Ten Interaction Challenges in Extreme-Scale Visual Analytics

    SciTech Connect (OSTI)

    Wong, Pak C.; Shen, Han-Wei; Chen, Chaomei

    2012-05-31T23:59:59.000Z

    The chapter presents ten selected user interfaces and interaction challenges in extreme-scale visual analytics. The study of visual analytics is often referred to as 'the science of analytical reasoning facilitated by interactive visual interfaces' in the literature. The discussion focuses on the issues of applying visual analytics technologies to extreme-scale scientific and non-scientific data ranging from petabyte to exabyte in sizes. The ten challenges are: in situ interactive analysis, user-driven data reduction, scalability and multi-level hierarchy, representation of evidence and uncertainty, heterogeneous data fusion, data summarization and triage for interactive query, analytics of temporally evolving features, the human bottleneck, design and engineering development, and the Renaissance of conventional wisdom. The discussion addresses concerns that arise from different areas of hardware, software, computation, algorithms, and human factors. The chapter also evaluates the likelihood of success in meeting these challenges in the near future.

  6. assisted query reformulation: Topics by E-print Network

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

    Summary: Terms Algorithms, Human Factors, Design Keywords Automatic Query Expansion, Search Behavior, 1 children may make. Most of the search engines offer only the possibility...

  7. NEW DATA SUPPORT ACTIVITIES FOR THE FAST-PHYSICS SYSTEM TESTBED & RESEARCH (FASTER) PROJECT

    E-Print Network [OSTI]

    of Energy Office of Science ABSTRACT The multi-institution FAst-physics System TEstbed and Research (FASTER) project, funded by the U.S. DOE Earth System Modeling program, aims to evaluate and improve, and in situ data. The FASTER data integration team provides tailored data sets, statistics, best estimates

  8. ask queries | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind GeneratingZhongshengZiboZongshenask queries Home

  9. Storm Water Analytical Period

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

    Protection Obeying Environmental Laws Individual Permit Storm Water Analytical Period Storm Water Analytical Period The Individual Permit authorizes the discharge of storm...

  10. Article ID: Query Translation on the Fly in Deep Web

    E-Print Network [OSTI]

    Article ID: Query Translation on the Fly in Deep Web Integration Jiang Fangjiao, Jia Linlin, Meng users to access the desired information, many researches have dedicated to the Deep Web (i.e. Web databases) integration. We focus on query translation which is an important part of the Deep Web integration

  11. Declarative Network Monitoring with an Underprovisioned Query Processor Frederick Reiss

    E-Print Network [OSTI]

    California at Irvine, University of

    interest in bringing the power of declarative queries to passive network monitors [8, 15]. Declar- ative network monitoring setup. real-time data on the status of their networks, network moni- tors need, or parallel hardware [29]. Other systems construct queries by connecting blocks of highly-optimized special

  12. A NOVEL MULTIMEDIA RETRIEVAL TECHNIQUE: PROGRESSIVE QUERY (WHY WAIT?)

    E-Print Network [OSTI]

    Gabbouj, Moncef

    A NOVEL MULTIMEDIA RETRIEVAL TECHNIQUE: PROGRESSIVE QUERY (WHY WAIT?) Serkan Kiranyaz and Moncef@cs.tut.fi, moncef.gabbouj@tut.fi ABSTRACT One of the challenges in the development of content-based multimedia who are accustomed to making queries and thus retrieving any multimedia item from a large scale

  13. Multimedia reporting: building multimedia presentations with query answers

    E-Print Network [OSTI]

    Celentano, Augusto

    Multimedia reporting: building multimedia presentations with query answers Augusto Celentano,ogaggi}@dsi.unive.it Abstract. A multimedia report is a multimedia presentation which integrates data returned by one or more queries to a multimedia database, thus extending the concept of report familiar in traditional structured

  14. Fuzzy Queries in Multimedia Database Systems Ronald Fagin

    E-Print Network [OSTI]

    Fagin, Ron

    Fuzzy Queries in Multimedia Database Systems Ronald Fagin IBM Almaden Research Center Sati Jose, CA differencesbetween multimedia databases (which may contain complicated objects, such as images), and traditional typos of queries. Wr example, in a multimedia databaseit is reasonable and natural to ask for images

  15. Data Models and Query Languages for Linked Geospatial Data

    E-Print Network [OSTI]

    Koubarakis, Manolis

    Data Models and Query Languages for Linked Geospatial Data Manolis Koubarakis, Manos Karpathiotakis,mk,kkyzir,charnik,sioutis}@di.uoa.gr Abstract. The recent availability of geospatial information as linked open data has generated new interest in geospatial query processing and reasoning, a topic with a long tradition of research in the areas

  16. Comp 5311 Database Management Systems 4. Structured Query Language

    E-Print Network [OSTI]

    Papadias, Dimitris

    ;5 Query 1: Find the total number of copies in stock for each poet SELECT poet, SUM (copies_in_stock) as sum FROM writer GROUP BY poet poet sum Douglas Livingstone 23 Mongane Wally 13 poet book copies Wally Must Weep 8 Mongane Wally A Tough Tale 2 #12;6 Query 2: For each poet, find the max, min, avg

  17. On Efficient Matching of Streaming XML Documents and Queries

    E-Print Network [OSTI]

    Lakshmanan, Laks V.S.

    On Efficient Matching of Streaming XML Documents and Queries Laks V.S. Lakshmanan 1 and P. Sailajacommerce, and supplychain management require the ability to manage large sets of specifications of prod ucts and.g., a document that is streaming by) is quite small compared to the number of registered queries (which can

  18. Glacier: A Query-to-Hardware Compiler Rene Mueller

    E-Print Network [OSTI]

    Teubner, Jens

    Glacier: A Query-to-Hardware Compiler Rene Mueller rene.mueller@inf.ethz.ch Jens Teubner jens systems. In this demonstration we show Glacier, a library and a compiler that can be employed to implement streaming queries as hardware circuits on FPGAs. Glacier consists of a library of compositional hardware

  19. Approximate Querying in Wireless Sensor Networks Yuzhen Liu Weifa Liang

    E-Print Network [OSTI]

    Liang, Weifa

    of queries in such a database efficiently and effectively. To reduce the energy consumption in sensor Science Australian National University Canberra, ACT 0200, Australia Abstract-In this paper, we study. We build a series of nearly optimal representative routing trees for query evaluation, where

  20. Efficient Complex Query Support for Multiversion XML Documents

    E-Print Network [OSTI]

    Zhang, Donghui

    in supporting complex queries on XML data (e.g., regular path expressions, structural projections, DIFF queries-0070135, IIS-9907477, EIA- 9983445, and the Department of Defense. #12;ideal solution is a version on their repositories of multiversion documents. Specialty warehouses and archives that monitor and collect content from

  1. View-Based Query Processing: On the Relationship Between Rewriting,

    E-Print Network [OSTI]

    Calvanese, Diego

    amounts to computing the tuples satisfying the query in all databases consistent with the views. Rewriting in the setting of semistructured databases, and in particular for the basic query class in this setting, i-0311326, IIS-9908435, IIS-9978135, EIA-0086264, and ANI-0216467, by US-Israel BSF grant 9800096, by Texas

  2. Managing and Querying Transaction-time Databases under Schema Evolution

    E-Print Network [OSTI]

    Zaniolo, Carlo

    Managing and Querying Transaction-time Databases under Schema Evolution Hyun J. Moon UCLA hjmoon of a relational database in XML, whereby the evolution of the schema and its underly- ing database are given is that schema evolution is transparent to the user: she writes queries against the current schema while

  3. A Foundation for Conventional and Temporal Query Optimization

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    substantially from built-in temporal support in the DBMS. To achieve this, temporal query representation DBMS architectures and ones where the temporal support is obtained via a layer on top of a conventional DBMS. This foundation captures duplicates and ordering for all queries, as well as coalescing

  4. Indexing and Querying XML Data for Regular Path Expressions

    E-Print Network [OSTI]

    Moon, Bongki

    by generating interactive site maps [19]. To retrieve XML and semi-structured data, several query languages have of XML data sources from docu- ments to databases and object repositories. The common featuresIndexing and Querying XML Data for Regular Path Expressions £ Quanzhong Li Bongki Moon Dept

  5. Energy-Efficient Aggregate Query Evaluation in Sensor Networks

    E-Print Network [OSTI]

    Liang, Weifa

    Energy-Efficient Aggregate Query Evaluation in Sensor Networks Zhuoyuan Tu and Weifa Liang efficiently. This paper considers the aggregate query evaluation in a sensor network database to the base station, which is called in-network aggregation. In other words, a tree rooted at the base station

  6. Challenges in the Better, Faster, Cheaper Era of Aeronautical Design, Engineering and Manufacturing

    E-Print Network [OSTI]

    Murman, Earll

    Starting in the 1990s, the aerospace industry was challenged to produce products and systems Better, faster, Cheaper. In this paper, we examine some of the underlying reasons for BFC and offer some thoughts to help frame ...

  7. Say What? Why users choose to speak their web queries Maryam Kamvar, Doug Beeferman

    E-Print Network [OSTI]

    Tomkins, Andrew

    a higher probability of being typed than shorter queries. Index Terms: speech, voice, search, Google, query of voice web search (where the query is entered by speaking rather than by keyboard) is sparse, most likely on an aggregate level factors that are correlated with a decision to speak a web search query rather than type it

  8. Cost-based Optimization of Complex Scientific Queries Ruslan Fomkin and Tore Risch

    E-Print Network [OSTI]

    Risch, Tore

    producing Higgs bosons [18] by applying scientific theories expressed as cuts. These complex queries need

  9. Network Traffic Analysis With Query Driven Visualization SC 2005 HPC Analytics Results

    E-Print Network [OSTI]

    , Christopher E. Davis , Rick Olinger , Rob Young , Jim Prewett , Paul Weber , Thomas P. Caudell , E.Wes Bethel

  10. Secure quantum private information retrieval using phase-encoded queries

    E-Print Network [OSTI]

    Olejnik, L

    2011-01-01T23:59:59.000Z

    We propose a quantum solution to the classical private information retrieval (PIR) problem, which allows one to query a database in a private manner. The protocol offers privacy thresholds and allows the user to obtain information from a database in a way that offers the potential adversary, in this model the database owner, no possibility of deterministically establishing the query contents. This protocol may also be viewed as a solution to the symmetrically private information retrieval problem in that it can offer database security (inability for a querying user to steal its contents). Compared to classical solutions, the protocol offers substantial improvement in terms of communication complexity. In comparison with the recent quantum private queries {[}Phys. Rev. Lett. 100, 230502 (2008)] protocol, it is more efficient in terms of communication complexity and the number of rounds, while offering a clear privacy parameter. We discuss the security of the protocol and analyze its strengths and conclude that...

  11. Compact Data Structures with Fast Queries Daniel K. Blandford

    E-Print Network [OSTI]

    .5 Decoding Multiple Gamma Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.6 Rank of Computer Science Carnegie Mellon University Pittsburgh, PA 15213 Thesis Committee: Guy E. Blelloch, chair fast queries (and updates) to the data. This thesis describes compact representations of several types

  12. CUCS00400 Automatic Classification of Text Databases Through Query Probing

    E-Print Network [OSTI]

    and focused results than when searching a more general text database. Other services (e.g., Copernic 3://www.searchengineguide.com/ 3 http://www.copernic.com/ 1 #12; databases with queries to determine an approximation

  13. Consumer Query Health Profile Saint Alphonsus Regional Medical Center

    E-Print Network [OSTI]

    Barrash, Warren

    Consumer Query Health Profile Saint Alphonsus Regional Medical Center Query resulted in 570 BSU Classified and Non-Classified employees that participated in the Fall 2004 Health Risk Appraisal. Non.2% 9.6% 7.7% 9.0% Heart Disease 2.3% 2.3% 2.6% 3.1% No Primary Care Physician 33.0% 31.8% 30.0% 24

  14. Query-Driven Visualization and Analysis

    SciTech Connect (OSTI)

    Ruebel, Oliver; Bethel, E. Wes; Prabhat, Mr.; Wu, Kesheng

    2012-11-01T23:59:59.000Z

    This report focuses on an approach to high performance visualization and analysis, termed query-driven visualization and analysis (QDV). QDV aims to reduce the amount of data that needs to be processed by the visualization, analysis, and rendering pipelines. The goal of the data reduction process is to separate out data that is "scientifically interesting'' and to focus visualization, analysis, and rendering on that interesting subset. The premise is that for any given visualization or analysis task, the data subset of interest is much smaller than the larger, complete data set. This strategy---extracting smaller data subsets of interest and focusing of the visualization processing on these subsets---is complementary to the approach of increasing the capacity of the visualization, analysis, and rendering pipelines through parallelism. This report discusses the fundamental concepts in QDV, their relationship to different stages in the visualization and analysis pipelines, and presents QDV's application to problems in diverse areas, ranging from forensic cybersecurity to high energy physics.

  15. Design of FastQuery: How to Generalize Indexing and Querying System for Scientific Data

    SciTech Connect (OSTI)

    Wu, Jerry; Wu, Kesheng

    2011-04-18T23:59:59.000Z

    Modern scientific datasets present numerous data management and analysis challenges. State-of-the-art index and query technologies such as FastBit are critical for facilitating interactive exploration of large datasets. These technologies rely on adding auxiliary information to existing datasets to accelerate query processing. To use these indices, we need to match the relational data model used by the indexing systems with the array data model used by most scientific data, and to provide an efficient input and output layer for reading and writing the indices. In this work, we present a flexible design that can be easily applied to most scientific data formats. We demonstrate this flexibility by applying it to two of the most commonly used scientific data formats, HDF5 and NetCDF. We present two case studies using simulation data from the particle accelerator and climate simulation communities. To demonstrate the effectiveness of the new design, we also present a detailed performance study using both synthetic and real scientific workloads.

  16. Reply to `On a recent proposal of faster than light quantum communication'

    E-Print Network [OSTI]

    A. Y. Shiekh

    2007-12-29T23:59:59.000Z

    In a recent paper the author proposed the possibility of an experiment to perform faster-than-light communication via the collapse of the quantum wave-function. This was analyzed by Bassi and Ghirardi, and it is believed that this analysis itself merits a detailed examination.

  17. Home Previous Page Odd power: New microbe strain makes more electricity, faster

    E-Print Network [OSTI]

    Lovley, Derek

    Home Previous Page Odd power: New microbe strain makes more electricity, faster Author: Newswise Issue: 8/2009 In their most recent experiments with Geobacter, the sediment-loving microbe whose hairlike filaments help it to produce electric current from mud and wastewater, Derek Lovley and colleagues

  18. Custom data support for the FAst -physics System Testbed and Research (FASTER) Project

    SciTech Connect (OSTI)

    Toto, T.; Jensen, M.; Vogelmann, A.; Wagener, R.; Liu, Y.; Lin, W.

    2010-03-15T23:59:59.000Z

    The multi-institution FAst -physics System Testbed and Research (FASTER) project, funded by the DOE Earth System Modeling program, aims to evaluate and improve the parameterizations of fast processes (those involving clouds, precipitation and aerosols) in global climate models, using a combination of numerical prediction models, single column models, cloud resolving models, large-eddy simulations, full global climate model output and ARM active and passive remote sensing and in-situ data. This poster presents the Custom Data Support effort for the FASTER project. The effort will provide tailored datasets, statistics, best estimates and quality control data, as needed and defined by FASTER participants, for use in evaluating and improving parameterizations of fast processes in GCMs. The data support will include custom gridding and averaging, for the model of interest, using high time resolution and pixel level data from continuous ARM observations and complementary datasets. In addition to the FASTER team, these datasets will be made available to the ARM Science Team. Initial efforts with respect to data product development, priorities, availability and distribution are summarized here with an emphasis on cloud, atmospheric state and aerosol properties as observed during the Spring 2000 Cloud IOP and the Spring 2003 Aerosol IOP at the ARM Southern Great Plains site.

  19. Microfluidics in structural biology: smaller, faster. . . better Carl Hansen and Stephen R Quake

    E-Print Network [OSTI]

    Hansen, Carl L.

    Microfluidics in structural biology: smaller, faster. . . better Carl Hansen and Stephen R Quake Microfluidic technologies promise unprecedented savings in cost and time through the integration of complex of this vision a reality, facilitating the first large-scale integration of microfluidic plumbing with biological

  20. Faster growth in warmer winters for large trees in a Mediterranean-climate ecosystem

    E-Print Network [OSTI]

    North, Malcolm

    Faster growth in warmer winters for large trees in a Mediterranean-climate ecosystem Seth W of large trees in a rapidly changing climate, we analyzed growth rings of five conifer species against 20th. Climatic Change DOI 10.1007/s10584-014-1060-0 Electronic supplementary material The online version

  1. CRAWLING DEEP WEB CONTENT THROUGH QUERY FORMS Jun Liu, Zhaohui Wu, Lu Jiang, Qinghua Zheng, Xiao Liu

    E-Print Network [OSTI]

    Shamos, Michael I.

    CRAWLING DEEP WEB CONTENT THROUGH QUERY FORMS Jun Liu, Zhaohui Wu, Lu Jiang, Qinghua Zheng, Xiao: Deep Web, Deep Web Surfacing, Minimum Executable Pattern, Adaptive Query Abstract: This paper proposes-based Deep Web adaptive query method. The query method extends query interface from single textbox to MEP set

  2. Parallel Index and Query for Large Scale Data Analysis

    SciTech Connect (OSTI)

    Chou, Jerry; Wu, Kesheng; Ruebel, Oliver; Howison, Mark; Qiang, Ji; Prabhat,; Austin, Brian; Bethel, E. Wes; Ryne, Rob D.; Shoshani, Arie

    2011-07-18T23:59:59.000Z

    Modern scientific datasets present numerous data management and analysis challenges. State-of-the-art index and query technologies are critical for facilitating interactive exploration of large datasets, but numerous challenges remain in terms of designing a system for process- ing general scientific datasets. The system needs to be able to run on distributed multi-core platforms, efficiently utilize underlying I/O infrastructure, and scale to massive datasets. We present FastQuery, a novel software framework that address these challenges. FastQuery utilizes a state-of-the-art index and query technology (FastBit) and is designed to process mas- sive datasets on modern supercomputing platforms. We apply FastQuery to processing of a massive 50TB dataset generated by a large scale accelerator modeling code. We demonstrate the scalability of the tool to 11,520 cores. Motivated by the scientific need to search for inter- esting particles in this dataset, we use our framework to reduce search time from hours to tens of seconds.

  3. FASTER: A new DOE effort to bridge ESM and ASR sciences

    SciTech Connect (OSTI)

    Liu, Y.

    2010-03-15T23:59:59.000Z

    In order to better use the long-term ARM measurements to evaluate parameterizations of fast processes used in global climate models --- mainly those related to clouds, precipitation and aerosols, the DOE Earth System Modeling (ESM) program funds a new multi-institution project led by the Brookhaven National Laboratory, FAst -physics System Testbed and Research (FASTER). This poster will present an overview of this new project and its scientific relationships to the ASR sciences and ARM measurements.

  4. Implementing measurements and optimizing queries for the quantum hidden subgroup problem

    E-Print Network [OSTI]

    Shakeel, Asif

    2011-01-01T23:59:59.000Z

    we will refer to as the slate of the query. Let us writeand arbitrary in the slate (state of the response registera character query: its slate is a particular character of

  5. E ective Query Size Estimation Using Neural Networks Hongjun Lu Rudy Setiono 1

    E-Print Network [OSTI]

    Setiono, Rudy

    ;ectively compare di#11;erent query execution plans to select the optimal one. Along with the evolution of DBMS technology, accurate size estimation of query results assumes greater and greater importance

  6. TreeQ-VISTA: An Interactive Tree Visualization Tool with Functional Annotation Query Capabilities

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    TreeQ-VISTA: An Interactive Tree Visualization Tool withto-use multiplatform interactive tool designed for querying

  7. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 1 An In-Network Querying Framework for Wireless

    E-Print Network [OSTI]

    Demirbas, Murat

    -network querying in a distributed, lightweight, resilient and energy-efficient manner. We address these challenges by exploiting location information and geometry of the network and propose an in-network querying framework our framework to achieve complex range-based querying. To this end, we use a multi

  8. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 1 An In-Network Querying Framework for Wireless

    E-Print Network [OSTI]

    Demirbas, Murat

    -network querying in a distributed, lightweight, resilient and energy-efficient manner. We address these challenges by exploiting location information and geometry of the network and propose an in-network querying framework of inquiries, we further extend our framework to achieve complex range-based querying. To this end, we use

  9. Mining Approximate Functional Dependencies and Concept Similarities to Answer Imprecise Queries

    E-Print Network [OSTI]

    Kambhampati, Subbarao

    . Example: Suppose a user is searching a car database for "sedans". Since most sedans have unique model names, the user must convert the general query sedan to queries binding the attribute Model. To find all sedans in the database, the user must iteratively change her search criteria and submit queries

  10. SEEDEEP: A System for Exploring and Querying Scientific Deep Web Data Sources

    E-Print Network [OSTI]

    Agrawal, Gagan

    SEEDEEP: A System for Exploring and Querying Scientific Deep Web Data Sources Fan Wang Gagan that are hidden behind query forms, thus forming what is re- ferred to as the deep web. In this paper, we propose SEEDEEP, a System for Exploring and quErying scientific DEEP web data sources. SEEDEEP is able

  11. SEARCHING FOR MULTIMEDIA: AN ANALYSIS OF AUDIO, VIDEO, AND IMAGE WEB QUERIES

    E-Print Network [OSTI]

    Jansen, James

    search engine. From this data set, terms were used to identify queries for audio, image, and video multimedia files by searching for file extensions and matching the filename to terms in the query (WittenSEARCHING FOR MULTIMEDIA: AN ANALYSIS OF AUDIO, VIDEO, AND IMAGE WEB QUERIES Bernard J. Jansen

  12. A Protein Patent Query System Powered By Kleisli Jing Chen Limsoon Wong Louxin Zhang

    E-Print Network [OSTI]

    Wong, Limsoon

    A Protein Patent Query System Powered By Kleisli Jing Chen Limsoon Wong Louxin Zhang Bio effectively query protein patents. This system uses Kleisli to tie to gether the following sources to answer queries on protein patents that are considerably more demanding than simple freetext search: (1

  13. A SingleQuery BiDirectional Probabilistic Roadmap Planner with Lazy Collision Checking

    E-Print Network [OSTI]

    LaValle, Steven M.

    1 A SingleQuery BiDirectional Probabilistic Roadmap Planner with Lazy Collision Checking Gildardo probabilistic roadmap (PRM) planner that is: singlequery --it does not precompute a roadmap, but uses the two the robot's free space by concurrently building a roadmap made of two trees rooted at the query

  14. Automatic Reformulation of Children's Search Queries Maarten van Kalsbeek, Joost de Wit, Dolf Trieschnigg,

    E-Print Network [OSTI]

    Hiemstra, Djoerd

    Terms Algorithms, Human Factors, Design Keywords Automatic Query Expansion, Search Behavior, 1 children may make. Most of the search engines offer only the possibility to enter a Boolean queryAutomatic Reformulation of Children's Search Queries Maarten van Kalsbeek, Joost de Wit, Dolf

  15. Public Key Encryption that Allows PIR Queries Eyal Kushilevitz

    E-Print Network [OSTI]

    Public Key Encryption that Allows PIR Queries Dan Boneh Eyal Kushilevitz Rafail Ostrovsky William E to create a public- key encryption scheme for Alice that allows PIR searching over encrypted documents. Our allows for Single-Database PIR writing with sublinear communication complexity, which we consider

  16. Secure quantum private information retrieval using phase-encoded queries

    SciTech Connect (OSTI)

    Olejnik, Lukasz [CERN, 1211 Geneva 23, Switzerland and Poznan Supercomputing and Networking Center, Noskowskiego 12/14, PL-61-704 Poznan (Poland)

    2011-08-15T23:59:59.000Z

    We propose a quantum solution to the classical private information retrieval (PIR) problem, which allows one to query a database in a private manner. The protocol offers privacy thresholds and allows the user to obtain information from a database in a way that offers the potential adversary, in this model the database owner, no possibility of deterministically establishing the query contents. This protocol may also be viewed as a solution to the symmetrically private information retrieval problem in that it can offer database security (inability for a querying user to steal its contents). Compared to classical solutions, the protocol offers substantial improvement in terms of communication complexity. In comparison with the recent quantum private queries [Phys. Rev. Lett. 100, 230502 (2008)] protocol, it is more efficient in terms of communication complexity and the number of rounds, while offering a clear privacy parameter. We discuss the security of the protocol and analyze its strengths and conclude that using this technique makes it challenging to obtain the unconditional (in the information-theoretic sense) privacy degree; nevertheless, in addition to being simple, the protocol still offers a privacy level. The oracle used in the protocol is inspired both by the classical computational PIR solutions as well as the Deutsch-Jozsa oracle.

  17. Privacy-preserving Queries over Relational Databases Femi Olumofin

    E-Print Network [OSTI]

    Goldberg, Ian

    @cs.uwaterloo.ca Abstract--We explore how Private Information Retrieval (PIR) can help users keep their sensitive with PIR by hiding sensitive constants contained in the predicates of a query. Experimental results to provide such information. The problem addressed by private information retrieval (PIR) [4], [13

  18. Public Key Encryption that Allows PIR Queries Eyal Kushilevitz

    E-Print Network [OSTI]

    Ostrovsky, Rafail

    Public Key Encryption that Allows PIR Queries Dan Boneh Eyal Kushilevitz Rafail Ostrovsky William E. In this paper, we show how to create a public-key encryption scheme for Alice that allows PIR searching over allows for Single-Database PIR writing with sublinear communication complexity, which we consider

  19. Taxonomy and synthesis of Web services querying languages

    E-Print Network [OSTI]

    Bitar, Ibrahim El; Roudies, Ounsa

    2012-01-01T23:59:59.000Z

    Most works on Web services has focused on discovery, composition and selection processes of these kinds of services. Other few works were interested in how to represent Web services search queries. However, these queries cannot be processed by ensuring a high level of performance without being adequately represented first. To this end, different query languages were designed. Even so, in the absence of a standard, these languages are quite various. Their diversity makes it difficult choosing the most suitable language. In fact, this language should be able to cover all types of preferences or requirements of clients such as their functional, nonfunctional,temporal or even specific constraints as is the case of geographical or spatial constraints and meet their needs and preferences helping to provide them the best answer. It must also be mutually simple and imposes no restrictions or at least not too many constraints in terms of prior knowledge to use and also provide a formal or semi-formal queries presentat...

  20. DATA CONCERN AWARE QUERYING FOR THE INTEGRATION OF DATA SERVICES

    E-Print Network [OSTI]

    Dustdar, Schahram

    DATA CONCERN AWARE QUERYING FOR THE INTEGRATION OF DATA SERVICES Muhammad Intizar Ali, Reinhard,dustdar}@infosys.tuwien.ac.at Keywords: Data Services, Database as a Service, Data Services Integration, Data Concerns, XQuery. Abstract: There is an increasing trend for organizations to publish data over the web using data services. The published data

  1. Facilitating Document Annotation using Content and Querying Value

    E-Print Network [OSTI]

    Hristidis, Vagelis

    content management software (e.g., Microsoft SharePoint), allow users to share documents and annotate1 Facilitating Document Annotation using Content and Querying Value Eduardo J. Ruiz #1 , Vagelis the generation of the structured metadata by identifying documents that are likely to contain informa- tion

  2. DBDOC: Querying and Browsing Databases and Interrelated Documents

    E-Print Network [OSTI]

    Ordonez, Carlos

    ]: Database Administra- tion--Data warehouse and repository General Terms Management, Documentation, Design 1 to describe this structured data. Managing semi- structured sources, such as documents, text files, web pagesDBDOC: Querying and Browsing Databases and Interrelated Documents Carlos Garcia-Alvarado University

  3. From Structured Documents to Novel Query Facilities \\Lambda

    E-Print Network [OSTI]

    Abiteboul, Serge

    ) can bring a lot of benefit to documents management, e.g., recovery, concurrency control and high levelFrom Structured Documents to Novel Query Facilities \\Lambda V. Christophides, S. Abiteboul, S.Schollg@inria.fr February 29, 1996 Abstract Structured documents (e.g., SGML) can benefit a lot from database support

  4. PET: Reducing Database Energy Cost via Query Optimization

    E-Print Network [OSTI]

    Tu, Yicheng

    PET: Reducing Database Energy Cost via Query Optimization Zichen Xu The Ohio State University xuz@ece.osu.edu Yi-Cheng Tu The University of South Florida ytu@cse.usf.edu Xiaorui Wang The Ohio State University xwang@ece.osu.edu ABSTRACT Energy conservation is a growing important issue in designing mod- ern

  5. A New ClientServer Architecture for Distributed Query Processing

    E-Print Network [OSTI]

    with an essentially ``free'' backward reduction capability is proposed. We explore in detail the benefits and costsA New ClientServer Architecture for Distributed Query Processing Zhe Li Kenneth A. Ross Computer Science Department Computer Science Department Columbia University Columbia University New York, NY 10027

  6. Multi-Query Feedback Motion Planning with LQR-Roadmaps

    E-Print Network [OSTI]

    Jackson, Daniel

    Multi-Query Feedback Motion Planning with LQR-Roadmaps Anirudha Majumdar School of Engineering "roadmap", with each segment representing a locally optimal trajectory of the system and a continuous) - and for parameterized finite-time invariance around a trajectory, as well as a "roadmap" construction al- gorithm

  7. 0 500 1000 1500 2000 2500 3000 UniqueQueries(%)

    E-Print Network [OSTI]

    Albrecht, Jeannie

    90 100 110 Percentcomplete(%) Elapsed time (sec) Kudzu BitTorrent Kudzu: A Self Balancing P2P File strategies · Kudzu takes Gnutella's decentralized model and imposes a self-governing structure on top of it Architecture Query Propagation · A Kudzu network is comprised of a set of functionally homogeneous peers · New

  8. IMPLEMENTATION OF INTENTION-DRIVEN SEARCH PROCESSES BY SPARQL QUERIES

    E-Print Network [OSTI]

    Mirbel, Isabelle

    IMPLEMENTATION OF INTENTION-DRIVEN SEARCH PROCESSES BY SPARQL QUERIES Olivier Corby INRIA Sophia Antipolis, BP 93, FR-06902 Sophia Antipolis, Cedex France olivier.corby@sophia.inria.fr Catherine Faron-Zucker I3S, Universit´e de Nice Sophia, CNRS, BP 121, FR-06903 Sophia Antipolis, Cedex France catherine

  9. STQL --A SPATIO-TEMPORAL QUERY LANGUAGE Martin Erwig

    E-Print Network [OSTI]

    Erwig, Martin

    evolutions of spatial objects over time. We consider spatio- temporal operations that are particularly useful is to provide a DBMS data model and query language capable of handling such time-dependent geome- tries. Thereby. Our modeling also includes the sim- pler, discrete case where temporal evolutions are stepwise

  10. Adaptable Query Optimization and Evaluation in Temporal Middleware

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    that such data- base applications may benefit substantially from built-in temporal support in the DBMS the DBMS proper or as a source level translation from temporal queries to conventional SQL. This paper proposes a new approach: using a middleware component on top of a conventional DBMS. This component accepts

  11. The Michigan Benchmark: A Microbenchmark for XML Query Processing Systems

    E-Print Network [OSTI]

    Runapongsa, Kanda

    The Michigan Benchmark: A Microbenchmark for XML Query Processing Systems Kanda Runapongsa Jignesh The University of Michigan, Ann Arbor, MI 48109, USA krunapon, jignesh, jag, shurug @eecs is called the Michigan benchmark. In the Michigan benchmark, we primarily attempt to capture the rich

  12. Context-Aware Query Classification Huanhuan Cao1

    E-Print Network [OSTI]

    Yang, Qiang

    Context-Aware Query Classification Huanhuan Cao1 Derek Hao Hu2 Dou Shen3 Daxin Jiang4 Jian-Tao Sun {derekhh, qyang}@cse.ust.hk 3,4 {doushen, djiang, jtsun}@microsoft.com ABSTRACT Understanding users' search become one of the most popular tools for Web users to find their desired information. As a result

  13. SMALL PCPS WITH LOW QUERY Prahladh Harsha and Madhu Sudan

    E-Print Network [OSTI]

    Harsha, Prahladh

    SMALL PCPS WITH LOW QUERY COMPLEXITY Prahladh Harsha and Madhu Sudan Abstract. Most known. #12; 2 Harsha & Sudan Subsequently much success has been achieved in improving the parameters of PCPs of Friedl & Sudan (1995), who indicate that NP has PCPs with nearly quadratic size complexity and in which

  14. SMALL PCPS WITH LOW QUERY Prahladh Harsha and Madhu Sudan

    E-Print Network [OSTI]

    Sudan, Madhu

    SMALL PCPS WITH LOW QUERY COMPLEXITY Prahladh Harsha and Madhu Sudan Abstract. Most known;2 Harsha & Sudan Subsequently much success has been achieved in improving the parameters of PCPs of Friedl & Sudan (1995), who indicate that NP has PCPs with nearly quadratic size complexity and in which

  15. Indexing Distributed Complex Data for Complex Queries Egemen Tanin

    E-Print Network [OSTI]

    Samet, Hanan

    of the Digital Government, databases can use many ideas from this domain for scalable exchange of data are fundamental to many data management systems. Their mechanisms heavily rely on creating globally known mappingsIndexing Distributed Complex Data for Complex Queries Egemen Tanin Department of Computer Science

  16. Extreme Scale Visual Analytics

    SciTech Connect (OSTI)

    Steed, Chad A [ORNL] [ORNL; Potok, Thomas E [ORNL] [ORNL; Pullum, Laura L [ORNL] [ORNL; Ramanathan, Arvind [ORNL] [ORNL; Shipman, Galen M [ORNL] [ORNL; Thornton, Peter E [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Given the scale and complexity of today s data, visual analytics is rapidly becoming a necessity rather than an option for comprehensive exploratory analysis. In this paper, we provide an overview of three applications of visual analytics for addressing the challenges of analyzing climate, text streams, and biosurveilance data. These systems feature varying levels of interaction and high performance computing technology integration to permit exploratory analysis of large and complex data of global significance.

  17. VIQI: A New Approach for Visual Interpretation of Deep Web Query Interfaces

    E-Print Network [OSTI]

    Boughamoura, Radhouane; Omri, Mohamed Nazih

    2012-01-01T23:59:59.000Z

    Deep Web databases contain more than 90% of pertinent information of the Web. Despite their importance, users don't profit of this treasury. Many deep web services are offering competitive services in term of prices, quality of service, and facilities. As the number of services is growing rapidly, users have difficulty to ask many web services in the same time. In this paper, we imagine a system where users have the possibility to formulate one query using one query interface and then the system translates query to the rest of query interfaces. However, interfaces are created by designers in order to be interpreted visually by users, machines can not interpret query from a given interface. We propose a new approach which emulates capacity of interpretation of users and extracts query from deep web query interfaces. Our approach has proved good performances on two standard datasets.

  18. Flexible quantum private queries based on quantum key distribution

    E-Print Network [OSTI]

    Fei Gao; Bin Liu; Qiao-Yan Wen; Hui Chen

    2011-11-07T23:59:59.000Z

    We present a flexible quantum-key-distribution-based protocol for quantum private queries. Similar to M. Jakobi et al's protocol [Phys. Rev. A 83, 022301 (2011)], it is loss tolerant, practical and robust against quantum memory attack. Furthermore, our protocol is more flexible and controllable. We show that, by adjusting the value of $\\theta$, the average number of the key bits Alice obtains can be located on any fixed value the users wanted for any database size. And the parameter $k$ is generally smaller (even $k=1$ can be achieved) when $\\theta<\\pi/4$, which implies lower complexity of both quantum and classical communications. Furthermore, the users can choose a smaller $\\theta$ to get better database security, or a larger $\\theta$ to obtain a lower probability with which Bob can correctly guess the address of Alice's query.

  19. ObjectGlobe: Ubiquitous Query Processing on the Internet

    E-Print Network [OSTI]

    Kemper, Alfons

    for scalable Internet applications, such as business-to-business (B2B) e-commerce systems like SAP's "mySAP capabilities. The goal of the ObjectGlobe project is to establish an open market place in which data and query on the Internet. One of the main challenges in the design of such an open system is to ensure privacy and security

  20. An Analytic Holographic Superconductor

    E-Print Network [OSTI]

    Christopher P. Herzog

    2011-01-16T23:59:59.000Z

    We investigate a holographic superconductor that admits an analytic treatment near the phase transition. In the dual 3+1 dimensional field theory, the phase transition occurs when a scalar operator of scaling dimension two gets a vacuum expectation value. We calculate current-current correlation functions along with the speed of second sound near the critical temperature. We also make some remarks about critical exponents. An analytic treatment is possible because an underlying Heun equation describing the zero mode of the phase transition has a polynomial solution. Amusingly, the treatment here may generalize for an order parameter with any integer spin, and we propose a Lagrangian for a spin two holographic superconductor.

  1. FastQuery: A Parallel Indexing System for Scientific Data

    SciTech Connect (OSTI)

    Chou, Jerry; Wu, Kesheng; Prabhat,

    2011-07-29T23:59:59.000Z

    Modern scientific datasets present numerous data management and analysis challenges. State-of-the- art index and query technologies such as FastBit can significantly improve accesses to these datasets by augmenting the user data with indexes and other secondary information. However, a challenge is that the indexes assume the relational data model but the scientific data generally follows the array data model. To match the two data models, we design a generic mapping mechanism and implement an efficient input and output interface for reading and writing the data and their corresponding indexes. To take advantage of the emerging many-core architectures, we also develop a parallel strategy for indexing using threading technology. This approach complements our on-going MPI-based parallelization efforts. We demonstrate the flexibility of our software by applying it to two of the most commonly used scientific data formats, HDF5 and NetCDF. We present two case studies using data from a particle accelerator model and a global climate model. We also conducted a detailed performance study using these scientific datasets. The results show that FastQuery speeds up the query time by a factor of 2.5x to 50x, and it reduces the indexing time by a factor of 16 on 24 cores.

  2. Data Intensive Architecture for Scalable Cyber Analytics

    SciTech Connect (OSTI)

    Olsen, Bryan K.; Johnson, John R.; Critchlow, Terence J.

    2011-12-19T23:59:59.000Z

    Cyber analysts are tasked with the identification and mitigation of network exploits and threats. These compromises are difficult to identify due to the characteristics of cyber communication, the volume of traffic, and the duration of possible attack. In this paper, we describe a prototype implementation designed to provide cyber analysts an environment where they can interactively explore a months worth of cyber security data. This prototype utilized On-Line Analytical Processing (OLAP) techniques to present a data cube to the analysts. The cube provides a summary of the data, allowing trends to be easily identified as well as the ability to easily pull up the original records comprising an event of interest. The cube was built using SQL Server Analysis Services (SSAS), with the interface to the cube provided by Tableau. This software infrastructure was supported by a novel hardware architecture comprising a Netezza TwinFin for the underlying data warehouse and a cube server with a FusionIO drive hosting the data cube. We evaluated this environment on a months worth of artificial, but realistic, data using multiple queries provided by our cyber analysts. As our results indicate, OLAP technology has progressed to the point where it is in a unique position to provide novel insights to cyber analysts, as long as it is supported by an appropriate data intensive architecture.

  3. Accretion of Chaplygin gas upon black holes: Formation of faster outflowing winds

    E-Print Network [OSTI]

    Ritabrata Biswas; Subenoy Chakraborty; Tarun Deep Saini; Banibrata Mukhopadhyay

    2011-01-24T23:59:59.000Z

    We study the accretion of modified Chaplygin gas upon different types of black hole. Modified Chaplygin gas is one of the best candidates for a combined model of dark matter and dark energy. In addition, from a field theoretical point of view the modified Chaplygin gas model is equivalent to that of a scalar field having a self-interacting potential. We formulate the equations related to both spherical accretion and disc accretion, and respective winds. The corresponding numerical solutions of the flow, particularly of velocity, are presented and are analyzed. We show that the accretion-wind system of modified Chaplygin gas dramatically alters the wind solutions, producing faster winds, upon changes in physical parameters, while accretion solutions qualitatively remain unaffected. This implies that modified Chaplygin gas is more prone to produce outflow which is the natural consequence of the dark energy into the system.

  4. Recursive Schrdinger equation approach to faster converging path integrals Antun Balaz,1,* Aleksandar Bogojevi,1

    E-Print Network [OSTI]

    Pelster, Axel

    of Physics Belgrade, Pregrevica 118, 11080 Belgrade, Serbia 2 Fachbereich Physik, Universitt Duisburg an alternative analytical approximation scheme for energy spectra, density of states, and other statistical- sion. Obtaining the information on energy spectra is just one important example of calculations

  5. Requirements for Predictive Analytics

    SciTech Connect (OSTI)

    Troy Hiltbrand

    2012-03-01T23:59:59.000Z

    It is important to have a clear understanding of how traditional Business Intelligence (BI) and analytics are different and how they fit together in optimizing organizational decision making. With tradition BI, activities are focused primarily on providing context to enhance a known set of information through aggregation, data cleansing and delivery mechanisms. As these organizations mature their BI ecosystems, they achieve a clearer picture of the key performance indicators signaling the relative health of their operations. Organizations that embark on activities surrounding predictive analytics and data mining go beyond simply presenting the data in a manner that will allow decisions makers to have a complete context around the information. These organizations generate models based on known information and then apply other organizational data against these models to reveal unknown information.

  6. QCS: a system for querying, clustering and summarizing documents.

    SciTech Connect (OSTI)

    Dunlavy, Daniel M.; Schlesinger, Judith D. (Center for Computing Sciences, Bowie, MD); O'Leary, Dianne P. (University of Maryland, College Park, MD); Conroy, John M. (Center for Computing Sciences, Bowie, MD)

    2006-10-01T23:59:59.000Z

    Information retrieval systems consist of many complicated components. Research and development of such systems is often hampered by the difficulty in evaluating how each particular component would behave across multiple systems. We present a novel hybrid information retrieval system--the Query, Cluster, Summarize (QCS) system--which is portable, modular, and permits experimentation with different instantiations of each of the constituent text analysis components. Most importantly, the combination of the three types of components in the QCS design improves retrievals by providing users more focused information organized by topic. We demonstrate the improved performance by a series of experiments using standard test sets from the Document Understanding Conferences (DUC) along with the best known automatic metric for summarization system evaluation, ROUGE. Although the DUC data and evaluations were originally designed to test multidocument summarization, we developed a framework to extend it to the task of evaluation for each of the three components: query, clustering, and summarization. Under this framework, we then demonstrate that the QCS system (end-to-end) achieves performance as good as or better than the best summarization engines. Given a query, QCS retrieves relevant documents, separates the retrieved documents into topic clusters, and creates a single summary for each cluster. In the current implementation, Latent Semantic Indexing is used for retrieval, generalized spherical k-means is used for the document clustering, and a method coupling sentence 'trimming', and a hidden Markov model, followed by a pivoted QR decomposition, is used to create a single extract summary for each cluster. The user interface is designed to provide access to detailed information in a compact and useful format. Our system demonstrates the feasibility of assembling an effective IR system from existing software libraries, the usefulness of the modularity of the design, and the value of this particular combination of modules.

  7. ANALYTICAL METHODS in CHEMICAL ECOLOGY

    E-Print Network [OSTI]

    ANALYTICAL METHODS in CHEMICAL ECOLOGY a post graduate course (doktorandkurs) when: February 10 28, 2014 where: Chemical Ecology, Plant Protection Biology, Swedish University of Agriculture (SLU to modern analytical methods used in Chemical Ecological and Ecotoxicological research, such as: methods

  8. NERSC Job Logs and Analytics

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

    For Users Job Logs & Analytics Job Logs & Analytics Queue Status A listing of jobs running and waiting in the queues (NERSC login required). Queue Wait Times Batch Queue Wait...

  9. A faster implementation of the pivot algorithm for self-avoiding walks

    E-Print Network [OSTI]

    Tom Kennedy

    2001-09-17T23:59:59.000Z

    The pivot algorithm is a Markov Chain Monte Carlo algorithm for simulating the self-avoiding walk. At each iteration a pivot which produces a global change in the walk is proposed. If the resulting walk is self-avoiding, the new walk is accepted; otherwise, it is rejected. Past implementations of the algorithm required a time O(N) per accepted pivot, where N is the number of steps in the walk. We show how to implement the algorithm so that the time required per accepted pivot is O(N^q) with q<1. We estimate that q is less than 0.57 in two dimensions, and less than 0.85 in three dimensions. Corrections to the O(N^q) make an accurate estimate of q impossible. They also imply that the asymptotic behavior of O(N^q) cannot be seen for walk lengths which can be simulated. In simulations the effective q is around 0.7 in two dimensions and 0.9 in three dimensions. Comparisons with simulations that use the standard implementation of the pivot algorithm using a hash table indicate that our implementation is faster by as much as a factor of 80 in two dimensions and as much as a factor of 7 in three dimensions. Our method does not require the use of a hash table and should also be applicable to the pivot algorithm for off-lattice models.

  10. Data and Analytics Strategy

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration wouldDECOMPOSITION OFSupplementalC. L. Martin andand Analytics Strategy --- 1

  11. Tractable hypergraph properties for constraint satisfaction and conjunctive queries

    E-Print Network [OSTI]

    Marx, Dniel

    2009-01-01T23:59:59.000Z

    An important question in the study of constraint satisfaction problems (CSP) is understanding how the graph or hypergraph describing the incidence structure of the constraints influences the complexity of the problem. For binary CSP instances (i.e., where each constraint involves only two variables), the situation is well understood: the complexity of the problem essentially depends on the treewidth of the graph of the constraints. However, this is not the correct answer if constraints with unbounded number of variables are allowed, and in particular, for CSP instances arising from query evaluation problems in database theory. Formally, if H is a class of hypergraphs, then let CSP(H) be CSP restricted to instances whose hypergraph is in H. Our goal is to characterize those classes of hypergraphs for which CSP(H) is polynomial-time solvable or fixed-parameter tractable, parameterized by the number of variables. Note that in the applications related to database query evaluation, we usually assume that the numbe...

  12. Web search queries can predict stock market volumes

    E-Print Network [OSTI]

    Bordino, Ilaria; Caldarelli, Guido; Cristelli, Matthieu; Ukkonen, Antti; Weber, Ingmar

    2011-01-01T23:59:59.000Z

    We live in a computerized and networked society where many of our actions leave a digital trace and affect other people's actions. This has lead to the emergence of a new data-driven research field: mathematical methods of computer science, statistical physics and sociometry provide insights on a wide range of disciplines ranging from social science to human mobility. A recent important discovery is that query volumes (i.e., the number of requests submitted by users to search engines on the www) can be used to track and, in some cases, to anticipate the dynamics of social phenomena. Successful exemples include unemployment levels, car and home sales, and epidemics spreading. Few recent works applied this approach to stock prices and market sentiment. However, it remains unclear if trends in financial markets can be anticipated by the collective wisdom of on-line users on the web. Here we show that trading volumes of stocks traded in NASDAQ-100 are correlated with the volumes of queries related to the same sto...

  13. Towards Hybrid Online On-Demand Querying of Realtime Data with Stateful Complex Event Processing

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    that is frequently accessed (hot data) is on fast storage compared to less-frequently accessed data (warm and cold like e- commerce and energy industry require both online and on- demand queries to be performed over to support scalable data storage and on-demand querying over large volumes of data. These systems usually

  14. Static Checking of Dynamically Generated Queries in Database Applications Carl Gould, Zhendong Su, and Premkumar Devanbu

    E-Print Network [OSTI]

    Devanbu, Prem

    , WHOLESALE, and TYPE, among others. The RETAIL and WHOLESALE columns are both of type in- teger, indicatingBound != null) { query += "WHOLESALE > " + lowerBound + " AND "; } query += "TYPE IN (" + get to be executed is: SELECT '$' || (RETAIL/100) FROM INVENTORY WHERE WHOLESALE > 595 AND TYPE IN (SELECT TY

  15. TQuEST: Threshold Query Execution for Large Sets of Time Series

    E-Print Network [OSTI]

    Kriegel, Hans-Peter

    TQuEST: Threshold Query Execution for Large Sets of Time Series Johannes A?falg, Hans-Peter Kriegel TQuEST, a powerful query processor for time series databases. TQuEST supports a novel but very useful times. 1 Introduction In this paper, we present TQuEST, a powerful analysis tool for time series

  16. Join Synopses for Approximate Query Answering Swarup Acharya Phillip B. Gibbons Viswanath Poosala Sridhar Ramaswamy

    E-Print Network [OSTI]

    Gibbons, Phillip B.

    optimizer to estimate plan costs; such an application demands very fast response times but not exact answers to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full solely on providing exact answers to queries, in a manner that seeks to minimize response time

  17. Figure 1. IDVL interface showing 12 documents returned for "El Nio" query along with different multimedia

    E-Print Network [OSTI]

    Wactlar, Howard D.

    to evaluate them. We aggregate and integrate video content on-demand to enable summarization and visualization that provides the users with coherent responses to their queries in a useful broader context, perhaps library, i.e., metadata, to return a set of video documents in response to a user query, as shown

  18. Query Planning for Searching Inter-Dependent Deep-web Databases

    E-Print Network [OSTI]

    Agrawal, Gagan

    Query Planning for Searching Inter-Dependent Deep-web Databases Fan Wang1 , Gagan Agrawal1 query forms, thus forming what is referred to as the deep web. It is de- sirable to have systems data retrieval from the deep web. However, such systems need to address the following challenges. First

  19. Query Planning for Searching Inter-dependent Deep-Web Databases

    E-Print Network [OSTI]

    Jin, Ruoming

    Query Planning for Searching Inter-dependent Deep-Web Databases Fan Wang1 , Gagan Agrawal1 query forms, thus forming what is referred to as the deep web. It is de- sirable to have systems data retrieval from the deep web. However, such systems need to address the following challenges. First

  20. Real time search on the web: Queries, topics, and economic value Bernard J. Jansen a,

    E-Print Network [OSTI]

    Jansen, James

    examine aggregate usage of the search engine, including number of users, queries, and terms. We term interest in a topic and the polling nature of real time queries. Concerning search topics geographical affinity, pointing to a location-based aspect to real time search. In terms of economic value, we

  1. Probabilistic Roadmaps of Trees for Parallel Computation of Multiple Query Roadmaps

    E-Print Network [OSTI]

    Kavraki, Lydia E.

    Probabilistic Roadmaps of Trees for Parallel Computation of Multiple Query Roadmaps Mert Akinc sample-based method primarily designed for multiple query planning (the Probabilistic Roadmap Method the Probabilistic Roadmap of Trees (PRT), uses a tree algorithm as a subroutine for PRM. The nodes of the PRM

  2. Rethinking Query Processing for Energy Efficiency: Slowing Down to Win the Race

    E-Print Network [OSTI]

    Patel, Jignesh

    Rethinking Query Processing for Energy Efficiency: Slowing Down to Win the Race Willis Lang of an energy efficiency metric along with traditional performance metrics. This change is fueled by the growing, real, and urgent demand for energy-efficient database processing. Database query processing engines

  3. Learning ReadOnce Formulas with Queries Dana Angluin \\Lambda Lisa Hellerstein y Marek Karpinski z

    E-Print Network [OSTI]

    Hellerstein, Lisa

    ­once formulas [26]. We also show that no polynomial time algorithm using only membership queries or only kinds of queries. The main results are a polynomial time algorithm for exact identification of monotone on the notion of a minimally adequate teacher [1]). Our results improve on Valiant's previous results for read

  4. DDT: A Distributed Data Structure for the Support of P2P Range Query

    E-Print Network [OSTI]

    Ricci, Laura

    DDT: A Distributed Data Structure for the Support of P2P Range Query Davide Carff, Massimo Coppola expressivity by maintenance a distributed index of resources. We propose the Distributed Digest Trie (DDT) a distributed data structure which is based on a trie structure. The DDT im- proves the DHT query expressivity

  5. Submitted EDBT 2002, paper ID: 239 Ecient Complex Query Support for Multiversion XML Documents

    E-Print Network [OSTI]

    Tsotras, Vassilis J.

    recent interest in supporting complex queries on XML data (e.g., regular path expressions, structural, Riverside, CA 92521. tsotras@cs.ucr.edu. This work was partially supported by NSF grants IIS-9907477, EIA and queries on their repositories of multiversion documents. Specialty warehouses and archives that monitor

  6. Integrating and Querying Source Code of Programs Working on a Database

    E-Print Network [OSTI]

    Ordonez, Carlos

    management system (DBMS). As a result, we present QDPC, a novel system that allows the inte- gration and flexible querying within a DBMS of source code and a database's schema. The integration focuses on obtain a DBMS. These sum- marization tables are then analyzed with SQL queries to find matches that are related

  7. Algebra-to-SQL Query Translation for Spatio-Temporal Databases

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

    of transforming the queries expressed for the conceptual schema into an operational query for a target DBMS or GIS their applications, such specifications must be translated into the operational model of current DBMS or GIS who have little technical knowledge of the underlying DBMS or GIS software. #12;The MurMur project

  8. Peer-to-Peer Spatial Queries in Sensor Networks Murat Demirbas Hakan Ferhatosmanoglu

    E-Print Network [OSTI]

    Demirbas, Murat

    .ohio-state.edu Abstract Sensor networks, that consist of potentially several thou- sands of nodes each with sensing (heat for monitoring spatial information about a region of interest. Although spatial query execution has been studied. For achieving minimal energy consumption and minimal response time, our query processing model en- sures

  9. PeertoPeer Spatial Queries in Sensor Networks Murat Demirbas Hakan Ferhatosmanoglu

    E-Print Network [OSTI]

    Demirbas, Murat

    ,hakang@cis.ohiostate.edu Abstract Sensor networks, that consist of potentially several thou sands of nodes each with sensing (heat for monitoring spatial information about a region of interest. Although spatial query execution has been studied. For achieving minimal energy consumption and minimal response time, our query processing model en sures

  10. Query Optimization as a Datalog Program Mengmeng Liu, Zachary G. Ives, and Boon Thau Loo

    E-Print Network [OSTI]

    Loo, Boon Thau

    Query Optimization as a Datalog Program Mengmeng Liu, Zachary G. Ives, and Boon Thau Loo University is that of specifying the transformation rules and search process of a query optimizer [1]. In certain emerging domains universally understood than the languages used in transformational optimizers like those generated by Volcano

  11. Privacy-Preserving Query over Encrypted Graph-Structured Data in Cloud Computing

    E-Print Network [OSTI]

    Hou, Y. Thomas

    Privacy-Preserving Query over Encrypted Graph-Structured Data in Cloud Computing Ning Cao, Zhenyu, Chicago, IL 60616 Email: {cong, kren}@ece.iit.edu Abstract-- In the emerging cloud computing paradigm of privacy-preserving query over encrypted graph-structured data in cloud computing (PPGQ), and establish

  12. Localization in indoor environments by querying omnidirectional visual maps using perspective images

    E-Print Network [OSTI]

    Barreto, Joao

    , not only speeds up the process of acquiring data for creating the map, but also favors scalabilityLocalization in indoor environments by querying omnidirectional visual maps using perspective. The localization is achieved by querying a database of omnidirectional images that constitutes a detailed visual

  13. Joint Video and Text Parsing for Understanding Events and Answering Queries

    E-Print Network [OSTI]

    Zhu, Song Chun

    1 Joint Video and Text Parsing for Understanding Events and Answering Queries Kewei Tu, Meng Meng to process video and text jointly for understanding events and answering user queries. Our framework produces) in the video and text. The knowledge representation of our framework is based on a spatial-temporal-causal And

  14. Faster processing of multiple spatially-heterodyned direct to digital holograms

    DOE Patents [OSTI]

    Hanson, Gregory R.; Bingham, Philip R.

    2006-10-03T23:59:59.000Z

    Systems and methods are described for faster processing of multiple spatially-heterodyned direct to digital holograms. A method includes of obtaining multiple spatially-heterodyned holograms, includes: digitally recording a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; digitally recording a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a first angle between a first reference beam and a first, object beam; applying a first digital filter to cut off signals around the first original origin and performing an inverse Fourier transform on the result; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a second angle between a second reference beam and a second object beam; and applying a second digital filter to cut off signals around the second original origin and performing an inverse Fourier transform on the result, wherein digitally recording the first spatially-heterodyned hologram is completed before digitally recording the second spatially-heterodyned hologram and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.

  15. Faster processing of multiple spatially-heterodyned direct to digital holograms

    DOE Patents [OSTI]

    Hanson, Gregory R [Clinton, TN; Bingham, Philip R [Knoxville, TN

    2008-09-09T23:59:59.000Z

    Systems and methods are described for faster processing of multiple spatially-heterodyned direct to digital holograms. A method includes of obtaining multiple spatially-heterodyned holograms, includes: digitally recording a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; digitally recording a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a first angle between a first reference beam and a first object beam; applying a first digital filter to cut off signals around the first original origin and performing an inverse Fourier transform on the result; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram including spatial heterodyne fringes in Fourier space to sit on top of a spatial-heterodyne carrier frequency defined as a second angle between a second reference beam and a second object beam; and applying a second digital filter to cut off signals around the second original origin and performing an inverse Fourier transform on the result, wherein digitally recording the first spatially-heterodyned hologram is completed before digitally recording the second spatially-heterodyned hologram and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.

  16. The Analytical Sciences Digital Library (ASDL)

    E-Print Network [OSTI]

    Larive, Cynthia K.

    2009-01-01T23:59:59.000Z

    Analytical Sciences Digital Library (http://www.asdlib.org).Analytical Sciences Digital Library (ASDL) Cynthia K. LariveAnalytical Sciences Digital Library (ASDL) is a collection

  17. Real time or faster-than-real-time simulation of airflow in buildings Wangda Zuo Qingyan Chen*

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    Real time or faster-than-real-time simulation of airflow in buildings Wangda Zuo Qingyan Chen flow simulation is crucial for emergency management in buildings, such as fire and accidental or intentional release of chemical/biological agents (contaminants). The simulation results can then be used

  18. MaxNet: Faster Flow Control Convergence Bartek P. Wydrowski, Lachlan L. H. Andrew, Iven M. Y. Mareels.

    E-Print Network [OSTI]

    Andrew, Lachlan

    MaxNet: Faster Flow Control Convergence Bartek P. Wydrowski, Lachlan L. H. Andrew, Iven M. Y of Melbourne, Vic, 3010, Australia Ph. +61 3 8344 3816 Fax. +61 3 8344 6678 Abstract. MaxNet is a distributed generates the congestion signal that controls the source rate. This is unlike SumNet networks

  19. Querying Multiple Sets of Discovered Rules Rule mining is an important data mining task that has been

    E-Print Network [OSTI]

    Liu, Bing

    operating on multiple rulebases because many practically important data mining queries naturally requireQuerying Multiple Sets of Discovered Rules ABSTRACT Rule mining is an important data mining task querying of multiple data mining rulebases to retrieve interesting rules. In this paper, we propose a new

  20. Private Database Queries Using Quantum States with Limited Coherence Times

    E-Print Network [OSTI]

    Tad Hogg; Li Zhang

    2009-03-31T23:59:59.000Z

    We describe a method for private database queries using exchange of quantum states with bits encoded in mutually incompatible bases. For technology with limited coherence time, the database vendor can announce the encoding after a suitable delay to allow the user to privately learn one of two items in the database without the ability to also definitely infer the second item. This quantum approach also allows the user to choose to learn other functions of the items, such as the exclusive-or of their bits, but not to gain more information than equivalent to learning one item, on average. This method is especially useful for items consisting of a few bits by avoiding the substantial overhead of conventional cryptographic approaches.

  1. STRICTLY CONVERGENT ANALYTIC STRUCTURES 1 ...

    E-Print Network [OSTI]

    2015-02-03T23:59:59.000Z

    We study a new notion of strictly convergent analytic structure (consisting of .... the solutions of certain systems of equations may have power series solutions...

  2. Sandia National Laboratories: advanced analytics

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

    analytics Caterpillar, Sandia CRADA Opens Door to Multiple Research Projects On April 17, 2013, in Capabilities, Computational Modeling & Simulation, CRF, Materials Science,...

  3. ANALYTIC COMPLETION (DRAFT) CHARLES REZK

    E-Print Network [OSTI]

    Rezk, Charles

    "Ext-p completion", and is well-known to be closely linked to computing the homotopy groups of p-completionsANALYTIC COMPLETION (DRAFT) CHARLES REZK Abstract. This is an expository treatment of what we call "analytic completion" of R- modules, which is a kind of completion defined in terms of quotients of power

  4. SNL software manual for the ACS Data Analytics Project.

    SciTech Connect (OSTI)

    Stearley, Jon R.; McLendon, William Clarence, III; Rodrigues, Arun F.; Williams, Aaron S.; Hooper, Russell Warren; Robinson, David Gerald; Stickland, Michael G.

    2011-10-01T23:59:59.000Z

    In the ACS Data Analytics Project (also known as 'YumYum'), a supercomputer is modeled as a graph of components and dependencies, jobs and faults are simulated, and component fault rates are estimated using the graph structure and job pass/fail outcomes. This report documents the successful completion of all SNL deliverables and tasks, describes the software written by SNL for the project, and presents the data it generates. Readers should understand what the software tools are, how they fit together, and how to use them to reproduce the presented data and additional experiments as desired. The SNL YumYum tools provide the novel simulation and inference capabilities desired by ACS. SNL also developed and implemented a new algorithm, which provides faster estimates, at finer component granularity, on arbitrary directed acyclic graphs.

  5. Construction of Query Concepts in a Document space based on Data Mining Techniques

    E-Print Network [OSTI]

    Chang, Y.; Kim, M.; Ounis, I.

    Chang,Y. Kim,M. Ounis,I. In Proceedings of the 6th International Conference On Flexible Query Answering Systems (FQAS 2004), Lecture Notes in Artificial Intelligence, June 24-26 2004, Lyon, France. Sun Microsystems Inc.

  6. Top-K Queries on Uncertain Data: On Score Distribution and Typical Answers

    E-Print Network [OSTI]

    Ge, Tingjian

    2009-01-01T23:59:59.000Z

    Uncertain data arises in a number of domains, including data integration and sensor networks. Top-k queries that rank results according to some user-defined score are an important tool for exploring large uncertain data ...

  7. CORI Project: 2008-44 30 June 2010 Coastal Habitat Mapping Query Manual

    E-Print Network [OSTI]

    GIS Query]. 5. Determining the mapped distribution and shoreline length of the canopy kelps Macrocystis (giant kelp), Nereocystis (bull kelp), and Alaria fistulosa (dragon kelp) (MAC, NER, and ALF biobands

  8. A Semantic Perspective on Query Log Analysis Katja Hofmann Maarten de Rijke Bouke Huurnink Edgar Meij

    E-Print Network [OSTI]

    de Rijke, Maarten

    A Semantic Perspective on Query Log Analysis Katja Hofmann Maarten de Rijke Bouke Huurnink Edgar Meij ISLA, University of Amsterdam k.hofmann@uva.nl, mdr@science.uva.nl bhuurnink@uva.nl, edgar

  9. Analytic equivalence relations and bi-embeddability

    E-Print Network [OSTI]

    Ros, Luca Motto

    Analytic equivalence relations and bi-embeddability Luca Motto Ros Kurt Godel Research Center Analytic equivalence relations and bi-embeddability #12;Analytic equivalence relations A subset of a Polish Analytic equivalence relations and bi-embeddability #12;Analytic equivalence relations A subset of a Polish

  10. Functionalized magnetic nanoparticle analyte sensor

    DOE Patents [OSTI]

    Yantasee, Wassana; Warner, Maryin G; Warner, Cynthia L; Addleman, Raymond S; Fryxell, Glen E; Timchalk, Charles; Toloczko, Mychailo B

    2014-03-25T23:59:59.000Z

    A method and system for simply and efficiently determining quantities of a preselected material in a particular solution by the placement of at least one superparamagnetic nanoparticle having a specified functionalized organic material connected thereto into a particular sample solution, wherein preselected analytes attach to the functionalized organic groups, these superparamagnetic nanoparticles are then collected at a collection site and analyzed for the presence of a particular analyte.

  11. COLLEGE OF SCIENCE Computational Modeling & Data Analytics

    E-Print Network [OSTI]

    Crawford, T. Daniel

    COLLEGE OF SCIENCE Computational Modeling & Data Analytics COLLEGE OF SCIENCE Computational Modeling & Data Analytics The Bachelor of Science in Computational Modeling and Data Analytics (CMDA mathematics. It imparts the unique blend of skills from Statistics, Mathematics, and Computer Science needed

  12. Hydrogen Fuel Quality - Focus: Analytical Methods Development...

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

    Fuel Quality - Focus: Analytical Methods Development & Hydrogen Fuel Quality Results Hydrogen Fuel Quality - Focus: Analytical Methods Development & Hydrogen Fuel Quality Results...

  13. RADON 131 7. ANALYTICAL METHODS

    E-Print Network [OSTI]

    unknown authors

    The purpose of this chapter is to describe the analytical methods that are available for detecting, measuring, and/or monitoring radon and its progeny. The intent is not to provide an exhaustive list of analytical methods. Rather, the intention is to identify well-established methods that are used as the standard methods of analysis. Many of the analytical methods used for environmental samples are the methods approved by federal agencies and organizations such as EPA and the National Institute for Occupational Safety and Health (NIOSH). Other methods presented in this chapter are those that are approved by groups such as the Association of Official Analytical Chemists (AOAC) and the American Public Health Association (APHA). Additionally, analytical methods are included that modify previously used methods to obtain lower detection limits and/or to improve accuracy and precision. 7.1 BIOLOGICAL MATERIALS Table 7-1 lists various methods used to detect radon progeny in biological samples. Since the half-life of radon is short, its measurement in biological samples, such as serum, urine, blood, etc., is not practical. Measurements of the longer lived radon progeny 210 Pb and 210 Po in biological samples may be used as an indication of radon exposure; however, ingestion of these isotopes from food and drinking water or direct exposure from other environmental media are considered the primary sources of exposure for these

  14. An Application of Multivariate Statistical Analysis for Query-Driven Visualization

    SciTech Connect (OSTI)

    Gosink, Luke J.; Garth, Christoph; Anderson, John C.; Bethel, E. Wes; Joy, Kenneth I.

    2010-03-01T23:59:59.000Z

    Abstract?Driven by the ability to generate ever-larger, increasingly complex data, there is an urgent need in the scientific community for scalable analysis methods that can rapidly identify salient trends in scientific data. Query-Driven Visualization (QDV) strategies are among the small subset of techniques that can address both large and highly complex datasets. This paper extends the utility of QDV strategies with a statistics-based framework that integrates non-parametric distribution estimation techniques with a new segmentation strategy to visually identify statistically significant trends and features within the solution space of a query. In this framework, query distribution estimates help users to interactively explore their query's solution and visually identify the regions where the combined behavior of constrained variables is most important, statistically, to their inquiry. Our new segmentation strategy extends the distribution estimation analysis by visually conveying the individual importance of each variable to these regions of high statistical significance. We demonstrate the analysis benefits these two strategies provide and show how they may be used to facilitate the refinement of constraints over variables expressed in a user's query. We apply our method to datasets from two different scientific domains to demonstrate its broad applicability.

  15. Analytic equivalence of geometric transitions

    E-Print Network [OSTI]

    Michele Rossi

    2014-08-28T23:59:59.000Z

    In this paper \\emph{analytic equivalence} of geometric transition is defined in such a way that equivalence classes of geometric transitions turn out to be the \\emph{arrows} of the \\cy web. Then it seems natural and useful, both from the mathematical and physical point of view, look for privileged arrows' representatives, called \\emph{canonical models}, laying the foundations of an \\emph{analytic} classification of geometric transitions. At this purpose a numerical invariant, called \\emph{bi--degree}, summarizing the topological, geometric and physical changing properties of a geometric transition, is defined for a large class of geometric transitions.

  16. QuerySpaces on Hadoop for the ATLAS EventIndex

    E-Print Network [OSTI]

    Hrivnac, Julius; The ATLAS collaboration; Cranshaw, Jack; Glasman, Claudia; Favareto, Andrea; Prokoshin, Fedor

    2015-01-01T23:59:59.000Z

    Hadoop-based implementation of the adaptive query engine serving as the back-end for the ATLAS EventIndex. The QuerySpaces implementation handles both original data and search results providing fast and efficient mechanisms for new user queries using already accumulated knowledge for optimisation. Detailed description and statistics about user requests are collected in HBase tables and HDFS files. Requests are associated to their results and a graph of relations between them is created to be used to find the most efficient way of providing answers to new requests The environment is completely transparent to users and is accessible over several command-line interfaces, a Web Service and a programming API.

  17. QuerySpaces on Hadoop for the ATLAS EventIndex

    E-Print Network [OSTI]

    Hrivnac, Julius; The ATLAS collaboration; Cranshaw, Jack; Favareto, Andrea; Prokoshin, Fedor; Glasman, Claudia; Toebbicke, Rainer

    2015-01-01T23:59:59.000Z

    A Hadoop-based implementation of the adaptive query engine serving as the back-end for the ATLAS EventIndex. The QuerySpaces implementation handles both original data and search results providing fast and efficient mechanisms for new user queries using already accumulated knowledge for optimization. Detailed descriptions and statistics about user requests are collected in HBase tables and HDFS files. Requests are associated to their results and a graph of relations between them is created to be used to find the most efficient way of providing answers to new requests The environment is completely transparent to users and is accessible over several command-line interfaces, a Web Service and a programming API.

  18. From Metaphor to Analytic Tool

    E-Print Network [OSTI]

    Process Tracing From Metaphor to Analytic Tool Edited by ANDREW BENNETT and JEFFREY T. CHECKEL process tracing." Andrew Bennett is Professor of Government at Georgetown Uni versity. He is also: © VvoeVale/iStock.com series cover design: sue watson "Bennett and Checkel have assembled an im- pressive

  19. Analytical Plan for Roman Glasses

    SciTech Connect (OSTI)

    Strachan, Denis M.; Buck, Edgar C.; Mueller, Karl T.; Schwantes, Jon M.; Olszta, Matthew J.; Thevuthasan, Suntharampillai; Heeren, Ronald M.

    2011-01-01T23:59:59.000Z

    Roman glasses that have been in the sea or underground for about 1800 years can serve as the independent experiment that is needed for validation of codes and models that are used in performance assessment. Two sets of Roman-era glasses have been obtained for this purpose. One set comes from the sunken vessel the Iulia Felix; the second from recently excavated glasses from a Roman villa in Aquileia, Italy. The specimens contain glass artifacts and attached sediment or soil. In the case of the Iulia Felix glasses quite a lot of analytical work has been completed at the University of Padova, but from an archaeological perspective. The glasses from Aquileia have not been so carefully analyzed, but they are similar to other Roman glasses. Both glass and sediment or soil need to be analyzed and are the subject of this analytical plan. The glasses need to be analyzed with the goal of validating the model used to describe glass dissolution. The sediment and soil need to be analyzed to determine the profile of elements released from the glass. This latter need represents a significant analytical challenge because of the trace quantities that need to be analyzed. Both pieces of information will yield important information useful in the validation of the glass dissolution model and the chemical transport code(s) used to determine the migration of elements once released from the glass. In this plan, we outline the analytical techniques that should be useful in obtaining the needed information and suggest a useful starting point for this analytical effort.

  20. Query complexity for searching multiple marked states from an unsorted database

    E-Print Network [OSTI]

    Bin Shang

    2006-04-10T23:59:59.000Z

    An important and usual problem is to search all states we want from a database with a large number of states. In such, recall is vital. Grover's original quantum search algorithm has been generalized to the case of multiple solutions, but no one has calculated the query complexity in this case. We will use a generalized algorithm with higher precision to solve such a search problem that we should find all marked states and show that the practical query complexity increases with the number of marked states. In the end we will introduce an algorithm for the problem on a ``duality computer'' and show its advantage over other algorithms.

  1. DMQL: A Data Mining Query Language for Relational Databases \\Lambda Jiawei Han Yongjian Fu Wei Wang Krzysztof Koperski Osmar Zaiane

    E-Print Network [OSTI]

    Fu, Yongjian

    DMQL: A Data Mining Query Language for Relational Databases \\Lambda Jiawei Han Yongjian Fu Wei Wang@cs.sfu.ca Abstract The emerging data mining tools and systems lead naturally to the demand of a powerful data mining. This motivates us to design a data mining query language, DMQL, for mining different kinds of knowledge

  2. Web Intelligence and Agent Systems: An International Journal 0 (2010) 10 1 Selecting Queries from Sample to Crawl

    E-Print Network [OSTI]

    Lu, Jianguo

    2010-01-01T23:59:59.000Z

    Queries from Sample to Crawl Deep Web Data Sources Yan Wang a Jianguo Lu a,c Jie Liang a Jessica Chen crawl a deep web data source using a set of sample documents. Crawling deep web is the process of collecting data from search interfaces by issuing queries. One of the major challenges in crawling deep web

  3. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 30, NO. 2, FEBRUARY 2012 433 Secure Cooperative Data Storage and Query

    E-Print Network [OSTI]

    Zhang, Rui

    mobile-sink visit. Despite rapid progress in storage technology, this approach remains economically Cooperative Data Storage and Query Processing in Unattended Tiered Sensor Networks Rui Zhang, Student Member. Such a cooperative data storage and query processing paradigm offers a number of advantages over traditional

  4. A Visual Analytics Approach to Structured Data Analysis to Enhance Nonproliferation and Arms Control Verification Activities

    SciTech Connect (OSTI)

    Gillen, David S.

    2014-08-07T23:59:59.000Z

    Analysis activities for Nonproliferation and Arms Control verification require the use of many types of data. Tabular structured data, such as Excel spreadsheets and relational databases, have traditionally been used for data mining activities, where specific queries are issued against data to look for matching results. The application of visual analytics tools to structured data enables further exploration of datasets to promote discovery of previously unknown results. This paper discusses the application of a specific visual analytics tool to datasets related to the field of Arms Control and Nonproliferation to promote the use of visual analytics more broadly in this domain. Visual analytics focuses on analytical reasoning facilitated by interactive visual interfaces (Wong and Thomas 2004). It promotes exploratory analysis of data, and complements data mining technologies where known patterns can be mined for. Also with a human in the loop, they can bring in domain knowledge and subject matter expertise. Visual analytics has not widely been applied to this domain. In this paper, we will focus on one type of data: structured data, and show the results of applying a specific visual analytics tool to answer questions in the Arms Control and Nonproliferation domain. We chose to use the T.Rex tool, a visual analytics tool developed at PNNL, which uses a variety of visual exploration patterns to discover relationships in structured datasets, including a facet view, graph view, matrix view, and timeline view. The facet view enables discovery of relationships between categorical information, such as countries and locations. The graph tool visualizes node-link relationship patterns, such as the flow of materials being shipped between parties. The matrix visualization shows highly correlated categories of information. The timeline view shows temporal patterns in data. In this paper, we will use T.Rex with two different datasets to demonstrate how interactive exploration of the data can aid an analyst with arms control and nonproliferation verification activities. Using a dataset from PIERS (PIERS 2014), we will show how container shipment imports and exports can aid an analyst in understanding the shipping patterns between two countries. We will also use T.Rex to examine a collection of research publications from the IAEA International Nuclear Information System (IAEA 2014) to discover collaborations of concern. We hope this paper will encourage the use of visual analytics structured data analytics in the field of nonproliferation and arms control verification. Our paper outlines some of the challenges that exist before broad adoption of these kinds of tools can occur and offers next steps to overcome these challenges.

  5. Solar Smarter Faster

    ScienceCinema (OSTI)

    Armbrust, Dan; Haldar, Pradeep; Kaloyeros, Alain; Holladay, Dan

    2013-05-29T23:59:59.000Z

    As part of the SunShot Initiative, U.S. Department of Energy Secretary Steven Chu announced on April 15th the selection of up to $112.5 million over five years for funding to support the development of advanced solar photovoltaic (PV)-related manufacturing processes throughout the United States. The effort is led by Sematech, with a proven track record in breathing life back into the US semiconduster industry, and in partnership with CNSE, The College of Nanoscale Science and Engineering, who supplies world class R&D experts and facilities.

  6. Analyte detection using an active assay

    DOE Patents [OSTI]

    Morozov, Victor (Manassas, VA); Bailey, Charles L. (Cross Junction, VA); Evanskey, Melissa R. (Potomac Falls, VA)

    2010-11-02T23:59:59.000Z

    Analytes using an active assay may be detected by introducing an analyte solution containing a plurality of analytes to a lacquered membrane. The lacquered membrane may be a membrane having at least one surface treated with a layer of polymers. The lacquered membrane may be semi-permeable to nonanalytes. The layer of polymers may include cross-linked polymers. A plurality of probe molecules may be arrayed and immobilized on the lacquered membrane. An external force may be applied to the analyte solution to move the analytes towards the lacquered membrane. Movement may cause some or all of the analytes to bind to the lacquered membrane. In cases where probe molecules are presented, some or all of the analytes may bind to probe molecules. The direction of the external force may be reversed to remove unbound or weakly bound analytes. Bound analytes may be detected using known detection types.

  7. Analytic bootstrap at large spin

    E-Print Network [OSTI]

    Apratim Kaviraj; Kallol Sen; Aninda Sinha

    2015-03-24T23:59:59.000Z

    We use analytic conformal bootstrap methods to determine the anomalous dimensions and OPE coefficients for large spin operators in general conformal field theories in four dimensions containing a scalar operator of conformal dimension $\\Delta_\\phi$. It is known that such theories will contain an infinite sequence of large spin operators with twists approaching $2\\Delta_\\phi+2n$ for each integer $n$. By considering the case where such operators are separated by a twist gap from other operators at large spin, we analytically determine the $n$, $\\Delta_\\phi$ dependence of the anomalous dimensions. We find that for all $n$, the anomalous dimensions are negative for $\\Delta_\\phi$ satisfying the unitarity bound, thus extending the Nachtmann theorem to non-zero $n$. In the limit when $n$ is large, we find agreement with the AdS/CFT prediction corresponding to the Eikonal limit of a 2-2 scattering with dominant graviton exchange.

  8. Analytic bootstrap at large spin

    E-Print Network [OSTI]

    Kaviraj, Apratim; Sinha, Aninda

    2015-01-01T23:59:59.000Z

    We use analytic conformal bootstrap methods to determine the anomalous dimensions and OPE coefficients for large spin operators in general conformal field theories in four dimensions containing a scalar operator of conformal dimension $\\Delta_\\phi$. It is known that such theories will contain an infinite sequence of large spin operators with twists approaching $2\\Delta_\\phi+2n$ for each integer $n$. By considering the case where such operators are separated by a twist gap from other operators at large spin, we analytically determine the $n$, $\\Delta_\\phi$ dependence of the anomalous dimensions. We find that for all $n$, the anomalous dimensions are negative for $\\Delta_\\phi$ satisfying the unitarity bound, thus extending the Nachtmann theorem to non-zero $n$. In the limit when $n$ is large, we find agreement with the AdS/CFT prediction corresponding to the Eikonal limit of a 2-2 scattering with dominant graviton exchange.

  9. Analytical formulas for gravitational lensing

    E-Print Network [OSTI]

    Paolo Amore; Santiago Arceo Diaz

    2006-03-21T23:59:59.000Z

    In this paper we discuss a new method which can be used to obtain arbitrarily accurate analytical expressions for the deflection angle of light propagating in a given metric. Our method works by mapping the integral into a rapidly convergent series and provides extremely accurate approximations already to first order. We have derived a general first order formula for a generic spherically symmetric static metric tensor and we have tested it in four different cases.

  10. Voronoi-based Geospatial Query Processing with MapReduce Afsin Akdogan, Ugur Demiryurek, Farnoush Banaei-Kashani, and Cyrus Shahabi

    E-Print Network [OSTI]

    Shahabi, Cyrus

    Voronoi-based Geospatial Query Processing with MapReduce Afsin Akdogan, Ugur Demiryurek, Farnoush Angeles, CA 90089 [aakdogan, demiryur, banaeika, shahabi]@usc.edu Abstract Geospatial queries (GQ) have of parallel geospatial query processing with the MapReduce programming model. Our proposed approach creates

  11. A lattice-based query system for assessing the quality of hydro-ecosystems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A lattice-based query system for assessing the quality of hydro-ecosystems Agn`es Braud1 Cristina used for building a hierarchy of site pro- files which are annotated by hydro in the project. This paper presents an application of Galois lattices to the hydro-ecological domain, focussing

  12. Public Key Encryption that Allows PIR Queries Dan Boneh # Eyal Kushilevitz + Rafail Ostrovsky #

    E-Print Network [OSTI]

    Public Key Encryption that Allows PIR Queries Dan Boneh # Eyal Kushilevitz + Rafail Ostrovsky a public­key encryption scheme for Alice that allows PIR searching over encrypted documents. Our solution­trivially small communication complexity. The main technique of our solution also allows for Single­Database PIR

  13. Topic Distillation with Query-Dependent Link Connections and Page Characteristics

    E-Print Network [OSTI]

    Wu, Mingfang

    6 Topic Distillation with Query-Dependent Link Connections and Page Characteristics MINGFANG WU about a topic. Finding such results is called topic distillation. Previous research has shown statistics. This article presents a new approach to improve topic distillation by exploring the use

  14. MQuery: A Visual Query Language for Multimedia, Timeline, and Simulation Data

    E-Print Network [OSTI]

    California at Los Angeles, University of

    MQuery: A Visual Query Language for Multimedia, Timeline, and Simulation Data John David N. Dionisio Alfonso F. C'ardenas Computer Science Department University of California, Los Angeles July 25 of California, Los Angeles Los Angeles, CA 90024 U.S.A. Phone: (310) 8257550 Fax: (310) 8252273 e

  15. MQuery: A Visual Query Language for Multimedia, Timeline, and Simulation Data

    E-Print Network [OSTI]

    California at Los Angeles, University of

    MQuery: A Visual Query Language for Multimedia, Timeline, and Simulation Data John David N. Dionisio Alfonso F. Cardenas Computer Science Department University of California, Los Angeles July 25 of California, Los Angeles Los Angeles, CA 90024 U.S.A. Phone: (310) 825-7550 Fax: (310) 825-2273 e

  16. DEVise: Integrated Querying and Visual Exploration of Large Datasets (DEMO ABSTRACT)

    E-Print Network [OSTI]

    Liblit, Ben

    DEVise: Integrated Querying and Visual Exploration of Large Datasets (DEMO ABSTRACT) M. Livny, R of large tabular datasets (possibly containing or referencing multi­ media objects) from several sources meta­data summarizing the entire dataset, to large subsets of the actual data, to individual data

  17. TS-IDS Algorithm For Query Selection in the Deep Web Crawling

    E-Print Network [OSTI]

    Lu, Jianguo

    TS-IDS Algorithm For Query Selection in the Deep Web Crawling Yan Wang1 , Jianguo Lu2 , and Jessica. The deep web crawling is the process of collecting data items inside a data source hidden behind searchable of documents and terms involved, calls for new approximation algorithms for efficient deep web data crawling

  18. MobiEyes: Distributed Processing of Continuously Moving Queries on Moving Objects in a Mobile System

    E-Print Network [OSTI]

    Liu, Ling

    System Bugra Gedik and Ling Liu College of Computing, Georgia Institute of Technology {bgedik queries on moving objects in a centralized lo- cation monitoring system. Surprisingly, very few have of MobiEyes, a distributed real-time location monitoring system in a mobile environment. Mobieyes utilizes

  19. Site-To-Site (S2S) Searching with Query Routing Using Distributed Registrars

    E-Print Network [OSTI]

    King, Kuo Chin Irwin

    Site-To-Site (S2S) Searching with Query Routing Using Distributed Registrars Wan Yeung Wong Department of Computer Science and Engineering The Chinese University of Hong Kong Shatin, Hong Kong wywong@cse.cuhk.edu.hk Irwin King Department of Computer Science and Engineering The Chinese University of Hong Kong Shatin

  20. Site-Based Dynamic Pruning for Query Processing in Search Engines

    E-Print Network [OSTI]

    Ulusoy, ?zgür

    Site-Based Dynamic Pruning for Query Processing in Search Engines Ismail Sengor Altingovde, Engin Demir, Fazli Can, ?zgür Ulusoy Computer Engineering Department, Bilkent University, Ankara 06800, Turkey {ismaila, endemir, canf, oulusoy}@cs.bilkent.edu.tr ABSTRACT Web search engines typically index

  1. GeoDec: A Framework to Effectively Visualize and Query Geospatial Data for Decision-Making

    E-Print Network [OSTI]

    Shahabi, Cyrus

    GeoDec: A Framework to Effectively Visualize and Query Geospatial Data for Decision-Making Cyrus-to-end system that enables geospatial decision-making by virtualizing the real-world geolocations. With GeoDec, first the geolocation of interest is rapidly and realistically simulated and all relevant geospatial

  2. Data Integration for Querying Geospatial Isabel F. Cruz and Huiyong Xiao

    E-Print Network [OSTI]

    Cruz, Isabel F.

    Data Integration for Querying Geospatial Sources Isabel F. Cruz and Huiyong Xiao Department of Computer Science University of Illinois at Chicago {ifc | hxiao}@cs.uic.edu Abstract. Geospatial data and is critical in emergency management. However, geospatial data are distributed, complex, and heterogeneous due

  3. VISUAL QUERY OF TIME-DEPENDENT 3D WEATHER IN A GLOBAL GEOSPATIAL

    E-Print Network [OSTI]

    Shaw, Chris

    1 VISUAL QUERY OF TIME-DEPENDENT 3D WEATHER IN A GLOBAL GEOSPATIAL ENVIRONMENT William Ribarsky and Spatial Analysis Technologies, Georgia Institute of Technology This Technical Report is a draft WEATHER IN A GLOBAL GEOSPATIAL ENVIRONMENT William Ribarsky, Nickolas Faust, Zachary Wartell, Christopher

  4. Breaking POET Authentication with a Single Query Jian Guo, Jeremy Jean, Thomas Peyrin, and Lei Wang

    E-Print Network [OSTI]

    Breaking POET Authentication with a Single Query Jian Guo, J´er´emy Jean, Thomas Peyrin, and Lei article, we describe a very practical and simple attack on the au- thentication part of POET authenticated encryption mode proposed at FSE 2014. POET is a provably secure scheme that was designed to resist various

  5. Locality sensitive hashing: a comparison of hash function types and querying mechanisms Loic Pauleve,a

    E-Print Network [OSTI]

    Boyer, Edmond

    . The comparison of random projections, lattice quantizers, k-means and hierarchical k-means reveal algorithms such as a k-means quantizer have been shown to provide excellent vector search performanceLocality sensitive hashing: a comparison of hash function types and querying mechanisms Lo

  6. Optimizing Data Replication for Expanding Ring-based Queries in Wireless Sensor

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    Optimizing Data Replication for Expanding Ring-based Queries in Wireless Sensor Networks Bhaskar are disseminated using expand- ing rings. We obtain closed-form approximations for the expected energy costs such as changes, movements and failures of nodes in the net- work). Randomized storage can also provide for a more

  7. Career Mentor Link For all queries related to the Career Mentor Link

    E-Print Network [OSTI]

    Tobar, Michael

    Career Mentor Link For all queries related to the Career Mentor Link program, contact: Jo Hocking Career Mentor Link Coordinator The University of Western Australia M302, 35 Stirling Highway, Crawley WA.careers.uwa.edu.au CRICOS Provider Code: 00126G CC.005.2009 FAQs What are the time commitments? The Career Mentor Link

  8. Career Mentor Link For all queries related to the Career Mentor Link

    E-Print Network [OSTI]

    Tobar, Michael

    Career Mentor Link For all queries related to the Career Mentor Link programme, contact: Jo Hocking Career Mentor Link Coordinator The University of Western Australia M302, 35 Stirling Highway, Crawley WA! Career Mentor Link Singapore is open to currently enrolled final year UWA students who are returning

  9. Performance of Adaptive Query Processing in the Mariposa Distributed Database Management System

    E-Print Network [OSTI]

    California at Irvine, University of

    present performance results which show that in multi-user situations, when response time is used assigns a price to perform a service and may adjust its prices as it sees fit. In designing Mariposa such as the effect of supply and demand on prices. We investigate the benefits of adaptive distributed query

  10. Query Based UML Modeling Validation and Verification of the System Model and

    E-Print Network [OSTI]

    Austin, Mark

    1 Query Based UML Modeling Validation and Verification of the System Model and Behavior. UML/SysML was designed to provide simple but powerful constructs for modeling a wide range of systems for a Hydraulic Crane Denny Mathew ENPM 643 System Validation and Verification Instructor: Dr. Mark Austin Fall

  11. Using temporal bursts for query modeling Maria-Hendrike Peetz Edgar Meij Maarten de Rijke

    E-Print Network [OSTI]

    de Rijke, Maarten

    Using temporal bursts for query modeling Maria-Hendrike Peetz Edgar Meij Maarten de Rijke-mail: edgar.meij@uva.nl M. de Rijke e-mail: derijke@uva.nl 123 Inf Retrieval DOI 10.1007/s10791-013-9227-2 #12

  12. Secure Multidimensional Range Queries in Sensor Rui Zhang, Jing Shi, and Yanchao Zhang

    E-Print Network [OSTI]

    Zhang, Rui

    in storage technology, it remains econom- ically infeasible to furnish individual sensor nodes, which may the queries from the network owner on behalf of sensor nodes. Relying on master nodes for data storage storage [1­4] such that data continuously produced by sensor nodes are stored inside the network

  13. Querying the Web with Statistical Machine Volker Tresp, Yi Huang, and Maximilian Nickel

    E-Print Network [OSTI]

    Tresp, Volker

    Querying the Web with Statistical Machine Learning Volker Tresp, Yi Huang, and Maximilian Nickel.Tresp@Siemens.com Yi Huang Siemens AG, Otto-Hahn-Ring 6, 81739 Muenchen, e-mail: YiHuang@Siemens.com Maximilian Nickel Ludwig Maximilian University of Munich, e-mail: nickel@dbs.ifi.lmu.de 1 #12;2 Volker Tresp, Yi Huang

  14. Bayesian Reasoning for Sensor Group-Queries and Diagnosis Ankur Jain1

    E-Print Network [OSTI]

    Wang, Yuan-Fang

    collectively as a single group-query that exploits inter-attribute dependencies for deriving cost to achieve two performance goals: 1) conserving power for prolonging useful life, and 2) collecting reliable on costly sensors can be answered efficiently by acquiring data from cheap sensors [9, 8]. In this paper, we

  15. Hop Doubling Label Indexing for Point-to-Point Distance Querying on Scale-Free Networks

    E-Print Network [OSTI]

    Wong, Raymond Chi-Wing

    , 20, 30, 33, 34] can only handle relatively small graphs due to high index construction cost and large, in terms of both querying time and indexing costs. Our empirical study shows that our method can handle unweighted scale-free graph G = (V, E), construct a disk-based index for processing This work is licensed

  16. Back to the Roots: A Probabilistic Framework for Query-Performance Prediction

    E-Print Network [OSTI]

    Kurland, Oren

    Back to the Roots: A Probabilistic Framework for Query-Performance Prediction Oren Kurland1 kurland substan- tially in their basic principles, and rely on diverse hypotheses about the characteristics with a basic question that has not been explicitly addressed in

  17. Exploiting Reflection to Add Persistence and Query Optimization to a Statically Typed Object-Oriented Language

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    programming language (PPL) that also provides one or more collection types and supports the processing (optimization) of queries on collections. A PPL is a programming language in which created objects processing PL DBPL PPL Figure 1: Transition from programming language to database programming language. #12

  18. Scalable Architecture and Query Optimization for Transaction-time DBs with Evolving Schemas

    E-Print Network [OSTI]

    Zaniolo, Carlo

    problems in preserva- tion, retrieval and querying of databases with intense evolution his- tories, i is easily deployed by plugging into existing DBMS replication technologies, leading to very low overhead such as `flashback' [1] and the new temporal constructs pushed in the SQL standards by the main DBMS vendors [2

  19. Query-driven Analysis of Plasma-based Particle Acceleration Data Oliver Rubel

    E-Print Network [OSTI]

    Query-driven Analysis of Plasma-based Particle Acceleration Data Oliver R¨ubel LBNL Cameron G. R. Geddes LBNL Min Chen LBNL Estelle Cormier-Michel Tech-X Corp. E. W. Bethel LBNL x(x106 ) 2000 4000

  20. Small PCPs with Low Query Complexity Prahladh Harsha and Madhu Sudan

    E-Print Network [OSTI]

    Sudan, Madhu

    Small PCPs with Low Query Complexity Prahladh Harsha and Madhu Sudan Laboratory for Computer of Friedl and Sudan [8], who indicate that NP has PCPs with nearly quadratic size complexity and in which been substantially improved. Raz and Safra [13] and Arora and Sudan [3] have given highly efficient

  1. Joint Video and Text Parsing for Understanding Events and Answering Queries

    E-Print Network [OSTI]

    Zhu, Song Chun

    1 Joint Video and Text Parsing for Understanding Events and Answering Queries Kewei Tu, Meng Meng, Mun Wai Lee, Tae Eun Choe, Song-Chun Zhu Abstract--We propose a framework for parsing video and text (actions and events) and causal information (causalities between events and fluents) in the video and text

  2. A Market Mechanism for Participatory Global Query: A First Step of Enterprise Resources Self-Allocation

    E-Print Network [OSTI]

    Hsu, Cheng

    Institute Troy, New York 12180-3590 Information Technology and Management, 2004 Abstract The problem.g., drilling through supply chains. These collaborative queries deserve a new paradigm that equally account. Traditional single databases, federated databases, and even the new XML-based Internet databases subscribe

  3. Arguments for an Alternative Account of Analyticity

    E-Print Network [OSTI]

    Sexton, Clark Alan

    2009-11-09T23:59:59.000Z

    This dissertation presents an alternative account of analyticity, as well as arguments for that account. Although an analysis and interpretation of previous accounts of analyticity are presented, the focus is on the analysis ...

  4. RESEARCH ENGINEER IN ADVANCED ANALYTICAL ELECTRON MICROSCOPY

    E-Print Network [OSTI]

    Gilchrist, James F.

    RESEARCH ENGINEER IN ADVANCED ANALYTICAL ELECTRON MICROSCOPY Department of Materials Science. #12;Job Description (for website) Job Title: Research Engineer in Advanced Analytical Electron or an engineering discipline and four years of demonstrated experience in electron microscopy. Requirements

  5. Developer Dashboards: The Need For Qualitative Analytics

    E-Print Network [OSTI]

    Godfrey, Michael W.

    Developer Dashboards: The Need For Qualitative Analytics Olga Baysal, Reid Holmes, and Michael W-to-day development tasks. I. SOFTWARE ANALYTICS IN PRACTICE Many organizations have adopted data-driven decision

  6. PLEAEERUSH ANALYTICAL DA-~-A SHEET

    Office of Legacy Management (LM)

    ' PLEAEERUSH ANALYTICAL DA--A SHEET ' ANALYTICAL DEPT. - HEALTH AhD SAFETY DlVlSlON 1956 Industrial Hygiene or Medical Dept. 1. H.Sample Nos. 3 --Date Collectedby-CESS-.Route...

  7. RBS' New BAIT Major: Business Analytics and

    E-Print Network [OSTI]

    :623:386) ­ Analytics / decision making and planning ­ Building mathematical models of business situations ­ Also builds · 33:623:485 Time Series Modeling for Business · 33:623:400 Business Decision Analytics underRBS' New BAIT Major: Business Analytics and Information Technology "Introducing the New Business

  8. SUSS PM 5 Analytic Probe

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection245C Unlimited ReleaseWelcome ton n uSTEM-A SANCHEZSUSS PM 5 Analytic

  9. Analytical applications for delayed neutrons

    SciTech Connect (OSTI)

    Eccleston, G.W.

    1983-01-01T23:59:59.000Z

    Analytical formulations that describe the time dependence of neutron populations in nuclear materials contain delayed-neutron dependent terms. These terms are important because the delayed neutrons, even though their yields in fission are small, permit control of the fission chain reaction process. Analytical applications that use delayed neutrons range from simple problems that can be solved with the point reactor kinetics equations to complex problems that can only be solved with large codes that couple fluid calculations with the neutron dynamics. Reactor safety codes, such as SIMMER, model transients of the entire reactor core using coupled space-time neutronics and comprehensive thermal-fluid dynamics. Nondestructive delayed-neutron assay instruments are designed and modeled using a three-dimensional continuous-energy Monte Carlo code. Calculations on high-burnup spent fuels and other materials that contain a mix of uranium and plutonium isotopes require accurate and complete information on the delayed-neutron periods, yields, and energy spectra. A continuing need exists for delayed-neutron parameters for all the fissioning isotopes.

  10. [22] S. T. Shenoy and Z. M. Ozsoyoglu. A system for semantic query optimization. In Proc. of the ACM SIGMOD Conf. on Management of Data, pages 181--195, San

    E-Print Network [OSTI]

    Mannheim, Universität

    , and A. Zachmann for their help in ``getting the prototype running.'' Especially K. Peithner (query

  11. Coupling of Two Motor Proteins: A New Motor Can Move Faster Evgeny B. Stukalin, Hubert Phillips III, and Anatoly B. Kolomeisky

    E-Print Network [OSTI]

    Coupling of Two Motor Proteins: A New Motor Can Move Faster Evgeny B. Stukalin, Hubert Phillips III February 2005; published 13 June 2005) We study the effect of a coupling between two motor domains in highly processive motor protein complexes. A simple stochastic discrete model, in which the two parts

  12. VisualSEEk: a fully automated content-based image query John R. Smith and Shih-Fu Chang

    E-Print Network [OSTI]

    Chang, Shih-Fu

    VisualSEEk: a fully automated content-based image query system John R. Smith and Shih-Fu Chang Department of Electrical Engineering and Center for Image Technology for New Media Columbia University New

  13. Efficient Query Verification on Outsourced Data: A Game-Theoretic Approach

    E-Print Network [OSTI]

    Nix, Robert

    2012-01-01T23:59:59.000Z

    To save time and money, businesses and individuals have begun outsourcing their data and computations to cloud computing services. These entities would, however, like to ensure that the queries they request from the cloud services are being computed correctly. In this paper, we use the principles of economics and competition to vastly reduce the complexity of query verification on outsourced data. We consider two cases: First, we consider the scenario where multiple non-colluding data outsourcing services exist, and then we consider the case where only a single outsourcing service exists. Using a game theoretic model, we show that given the proper incentive structure, we can effectively deter dishonest behavior on the part of the data outsourcing services with very few computational and monetary resources. We prove that the incentive for an outsourcing service to cheat can be reduced to zero. Finally, we show that a simple verification method can achieve this reduction through extensive experimental evaluatio...

  14. Graph Analytics for Signature Discovery

    SciTech Connect (OSTI)

    Hogan, Emilie A.; Johnson, John R.; Halappanavar, Mahantesh; Lo, Chaomei

    2013-06-01T23:59:59.000Z

    Within large amounts of seemingly unstructured data it can be diffcult to find signatures of events. In our work we transform unstructured data into a graph representation. By doing this we expose underlying structure in the data and can take advantage of existing graph analytics capabilities, as well as develop new capabilities. Currently we focus on applications in cybersecurity and communication domains. Within cybersecurity we aim to find signatures for perpetrators using the pass-the-hash attack, and in communications we look for emails or phone calls going up or down a chain of command. In both of these areas, and in many others, the signature we look for is a path with certain temporal properties. In this paper we discuss our methodology for finding these temporal paths within large graphs.

  15. Analytic calculation of properties of holographic superconductors

    E-Print Network [OSTI]

    George Siopsis; Jason Therrien

    2010-03-22T23:59:59.000Z

    We calculate analytically properties of holographic superconductors in the probe limit. We analyze the range $1/2 3/2$. We also obtain the frequency dependence of the conductivity by solving analytically the wave equation of electromagnetic perturbations. We show that the real part of the DC conductivity behaves as $e^{-\\Delta_g /T}$ and estimate the gap $\\Delta_g$ analytically. Our results are in good agreement with numerical results.

  16. Method of identity analyte-binding peptides

    DOE Patents [OSTI]

    Kauvar, L.M.

    1990-10-16T23:59:59.000Z

    A method for affinity chromatography or adsorption of a designated analyte utilizes a paralog as the affinity partner. The immobilized paralog can be used in purification or analysis of the analyte; the paralog can also be used as a substitute for antibody in an immunoassay. The paralog is identified by screening candidate peptide sequences of 4--20 amino acids for specific affinity to the analyte. 5 figs.

  17. Strategies for Choosing Analytics and Visualization Software...

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

    be interchangeable. Visualization Analytics Visit Matlab Python tools: Numpy, Scipy, iPython, matplotlib Paraview Mathematica Perl IDL Python TCLTK AVSExpress R SQL ImageJFiji...

  18. Storage option an Analytic approach

    E-Print Network [OSTI]

    Dmitry Lesnik

    2012-05-28T23:59:59.000Z

    The mathematical problem of the static storage optimisation is formulated and solved by means of a variational analysis. The solution obtained in implicit form is shedding light on the most important features of the optimal exercise strategy. We show how the solution depends on different constraint types including carry cost and cycling constraint. We investigate the relation between intrinsic and stochastic solutions. In particular we give another proof that the stochastic problem has a "bang-bang" optimal exercise strategy. We also show why the optimal stochastic exercise decision is always close to the intrinsic one. In the second half we develop a perturbation analysis to solve the stochastic optimisation problem. The obtained approximate solution allows us to estimate the time value of the storage option. In particular we find an answer to rather academic question of asymptotic time value for the mean reversion parameter approaching zero or infinity. We also investigate the differences between swing and storage problems. The analytical results are compared with numerical valuations and found to be in a good agreement.

  19. Contained radiological analytical chemistry module

    DOE Patents [OSTI]

    Barney, David M. (Scotia, NY)

    1989-01-01T23:59:59.000Z

    A system which provides analytical determination of a plurality of water chemistry parameters with respect to water samples subject to radiological contamination. The system includes a water sample analyzer disposed within a containment and comprising a sampling section for providing predetermined volumes of samples for analysis; a flow control section for controlling the flow through the system; and a gas analysis section for analyzing samples provided by the sampling system. The sampling section includes a controllable multiple port valve for, in one position, metering out sample of a predetermined volume and for, in a second position, delivering the material sample for analysis. The flow control section includes a regulator valve for reducing the pressure in a portion of the system to provide a low pressure region, and measurement devices located in the low pressure region for measuring sample parameters such as pH and conductivity, at low pressure. The gas analysis section which is of independent utility provides for isolating a small water sample and extracting the dissolved gases therefrom into a small expansion volume wherein the gas pressure and thermoconductivity of the extracted gas are measured.

  20. Contained radiological analytical chemistry module

    DOE Patents [OSTI]

    Barney, David M. (Scotia, NY)

    1990-01-01T23:59:59.000Z

    A system which provides analytical determination of a plurality of water chemistry parameters with respect to water samples subject to radiological contamination. The system includes a water sample analyzer disposed within a containment and comprising a sampling section for providing predetermined volumes of samples for analysis; a flow control section for controlling the flow through the system; and a gas analysis section for analyzing samples provided by the sampling system. The sampling section includes a controllable multiple port valve for, in one position, metering out sample of a predetermined volume and for, in a second position, delivering the material sample for analysis. The flow control section includes a regulator valve for reducing the pressure in a portion of the system to provide a low pressure region, and measurement devices located in the low pressure region for measuring sample parameters such as pH and conductivity, at low pressure. The gas analysis section which is of independent utility provides for isolating a small water sample and extracting the dissolved gases therefrom into a small expansion volume wherein the gas pressure and thermoconductivity of the extracted gas are measured.

  1. Analytical Chemistry Division's sample transaction system

    SciTech Connect (OSTI)

    Stanton, J.S.; Tilson, P.A.

    1980-10-01T23:59:59.000Z

    The Analytical Chemistry Division uses the DECsystem-10 computer for a wide range of tasks: sample management, timekeeping, quality assurance, and data calculation. This document describes the features and operating characteristics of many of the computer programs used by the Division. The descriptions are divided into chapters which cover all of the information about one aspect of the Analytical Chemistry Division's computer processing.

  2. Visual Analytics at the Pacific Northwest

    E-Print Network [OSTI]

    customers. The success of PNNL's information visualization software, such as IN-SPIRETM and StarlightTM, and publications in top visualization journals and conference proceedings are the results of PNNL researchers with a focus on analytical reasoning facilitated by interactive visual interfaces. PNNL's visual analytics team

  3. Method and apparatus for detecting an analyte

    DOE Patents [OSTI]

    Allendorf, Mark D. (Pleasanton, CA); Hesketh, Peter J. (Atlanta, GA)

    2011-11-29T23:59:59.000Z

    We describe the use of coordination polymers (CP) as coatings on microcantilevers for the detection of chemical analytes. CP exhibit changes in unit cell parameters upon adsorption of analytes, which will induce a stress in a static microcantilever upon which a CP layer is deposited. We also describe fabrication methods for depositing CP layers on surfaces.

  4. Microfabricated field calibration assembly for analytical instruments

    DOE Patents [OSTI]

    Robinson, Alex L. (Albuquerque, NM); Manginell, Ronald P. (Albuquerque, NM); Moorman, Matthew W. (Albuquerque, NM); Rodacy, Philip J. (Albuquerque, NM); Simonson, Robert J. (Cedar Crest, NM)

    2011-03-29T23:59:59.000Z

    A microfabricated field calibration assembly for use in calibrating analytical instruments and sensor systems. The assembly comprises a circuit board comprising one or more resistively heatable microbridge elements, an interface device that enables addressable heating of the microbridge elements, and, in some embodiments, a means for positioning the circuit board within an inlet structure of an analytical instrument or sensor system.

  5. The Evolving Leadership Path of Visual Analytics

    SciTech Connect (OSTI)

    Kluse, Michael; Peurrung, Anthony J.; Gracio, Deborah K.

    2012-01-02T23:59:59.000Z

    This is a requested book chapter for an internationally authored book on visual analytics and related fields, coordianted by a UK university and to be published by Springer in 2012. This chapter is an overview of the leadship strategies that PNNL's Jim Thomas and other stakeholders used to establish visual analytics as a field, and how those strategies may evolve in the future.

  6. ANALYTIC EQUIVALENCE OF NORMAL CROSSING FUNCTIONS ON A REAL ANALYTIC MANIFOLD

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ANALYTIC EQUIVALENCE OF NORMAL CROSSING FUNCTIONS ON A REAL ANALYTIC MANIFOLD Goulwen Fichou crossing singularities after a modification. We focus on the analytic equivalence of such functions with only normal crossing singularities. We prove that for such functions C right equivalence implies

  7. Multimedia Analytics Canopy is a visual analytic software suite, developed by researchers at Battelle's

    E-Print Network [OSTI]

    Multimedia Analytics Canopy is a visual analytic software suite, developed by researchers to efficiently analyze massive amounts of multimedia data. Canopy incorporates cutting-edge extraction techniques is a multimedia analytics software platform that combines cutting-edge extraction techniques, state

  8. Analytical energy spectrum for hybrid mechanical systems

    E-Print Network [OSTI]

    Honghua Zhong; Qiongtao Xie; Xiwen Guan; Murray T. Batchelor; Kelin Gao; Chaohong Lee

    2013-11-07T23:59:59.000Z

    We investigate the energy spectrum for hybrid mechanical systems described by non-parity-symmetric quantum Rabi models. A set of analytical solutions in terms of the confluent Heun functions and their analytical energy spectrum are obtained. The analytical energy spectrum includes regular and exceptional parts, which are both confirmed by direct numerical simulation. The regular part is determined by the zeros of the Wronskian for a pair of analytical solutions. The exceptional part is relevant to the isolated exact solutions and its energy eigenvalues are obtained by analyzing the truncation conditions for the confluent Heun functions. By analyzing the energy eigenvalues for exceptional points, we obtain the analytical conditions for the energy-level-crossings, which correspond to two-fold energy degeneracy.

  9. ARPEFS as an analytic technique

    SciTech Connect (OSTI)

    Schach von Wittenau, A.E.

    1991-04-01T23:59:59.000Z

    Two modifications to the ARPEFS technique are introduced. These are studied using p(2 {times} 2)S/Cu(001) as a model system. The first modification is the obtaining of ARPEFS {chi}(k) curves at temperatures as low as our equipment will permit. While adding to the difficulty of the experiment, this modification is shown to almost double the signal-to-noise ratio of normal emission p(2 {times} 2)S/Cu(001) {chi}(k) curves. This is shown by visual comparison of the raw data and by the improved precision of the extracted structural parameters. The second change is the replacement of manual fitting of the Fourier filtered {chi}(k) curves by the use of the simplex algorithm for parameter determination. Again using p(2 {times} 2)S/Cu(001) data, this is shown to result in better agreement between experimental {chi}(k) curves and curves calculated based on model structures. The improved ARPEFS is then applied to p(2 {times} 2)S/Ni(111) and ({radical}3 {times} {radical}3) R30{degree}S/Ni(111). For p(2 {times} 2)S/Cu(001) we find a S-Cu bond length of 2.26 {Angstrom}, with the S adatom 1.31 {Angstrom} above the fourfold hollow site. The second Cu layer appears to be corrugated. Analysis of the p(2 {times} 2)S/Ni(111) data indicates that the S adatom adatom adsorbs onto the FCC threefold hollow site 1.53 {Angstrom} above the Ni surface. The S-Ni bond length is determined to be 2.13 {Angstrom}, indicating an outwards shift of the first layer Ni atoms. We are unable to assign a unique structure to ({radical}3 {times} {radical}3)R30{degree}S/Ni(111). An analysis of the strengths and weaknesses of ARPEFS as an experimental and analytic technique is presented, along with a summary of problems still to be addressed.

  10. A translation of recursive algebra queries into the access language of a nested relations database prototype

    E-Print Network [OSTI]

    Caulfield, Jonathan

    1989-01-01T23:59:59.000Z

    REFERENCES . 109 APPENDIX A BNF GRAMMAR OF THE QUERY LANGUAGE . . B SELECTION TRANSLATIONS . 114 119 LIST OF FIGURES Figure 1 A First Normal Form Parent and Child Da, tabase Page 2 A Nested Parent and Child Database 3 The EMP Relation 14 ename...='Fred') 5 a(EMP(Childage ? rs) . 6 s'((ename, Child(cname), Skills) EMP) . . 7 The EMP1 Relation . . 8 The EMP2 Relation . . 15 16 18 21 22 9 U(EMP1, EMP2) 10 U'(EMP1, EMP2) . . 11 n(EMp1, EMp2) 12 n'(EMpl, EMp2) . 13 ? (EMP1, EMP2) 14 ? '(EMP1...

  11. A METHOD FOR ESTIMATING GAS PRESSURE IN 3013 CONTAINERS USING AN ISP DATABASE QUERY

    SciTech Connect (OSTI)

    Friday, G; L. G. Peppers, L; D. K. Veirs, D

    2008-07-31T23:59:59.000Z

    The U.S. Department of Energy's Integrated Surveillance Program (ISP) is responsible for the storage and surveillance of plutonium-bearing material. During storage, plutonium-bearing material has the potential to generate hydrogen gas from the radiolysis of adsorbed water. The generation of hydrogen gas is a safety concern, especially when a container is breached within a glove box during destructive evaluation. To address this issue, the DOE established a standard (DOE, 2004) that sets the criteria for the stabilization and packaging of material for up to 50 years. The DOE has now packaged most of its excess plutonium for long-term storage in compliance with this standard. As part of this process, it is desirable to know within reasonable certainty the total maximum pressure of hydrogen and other gases within the 3013 container if safety issues and compliance with the DOE standards are to be attained. The principal goal of this investigation is to document the method and query used to estimate total (i.e. hydrogen and other gases) gas pressure within a 3013 container based on the material properties and estimated moisture content contained in the ISP database. Initial attempts to estimate hydrogen gas pressure in 3013 containers was based on G-values (hydrogen gas generation per energy input) derived from small scale samples. These maximum G-values were used to calculate worst case pressures based on container material weight, assay, wattage, moisture content, container age, and container volume. This paper documents a revised hydrogen pressure calculation that incorporates new surveillance results and includes a component for gases other than hydrogen. The calculation is produced by executing a query of the ISP database. An example of manual mathematical computations from the pressure equation is compared and evaluated with results from the query. Based on the destructive evaluation of 17 containers, the estimated mean absolute pressure was significantly higher (P<.01) than the mean GEST pressure. There was no significant difference (P>.10) between the mean pressures from DR and the calculation. The mean predicted absolute pressure was consistently higher than GEST by an average difference of 57 kPa (8 psi). The mean difference between the estimated pressure and digital radiography was 11 kPa (2 psi). Based on the initial results of destructive evaluation, the pressure query was found to provide a reasonably conservative estimate of the total pressure in 3013 containers whose material contained minimal moisture content.

  12. Computer systems and methods for the query and visualization of multidimensional database

    SciTech Connect (OSTI)

    Stolte, Chris; Tang, Diane L.; Hanrahan, Patrick

    2010-05-11T23:59:59.000Z

    A method and system for producing graphics. A hierarchical structure of a database is determined. A visual table, comprising a plurality of panes, is constructed by providing a specification that is in a language based on the hierarchical structure of the database. In some cases, this language can include fields that are in the database schema. The database is queried to retrieve a set of tuples in accordance with the specification. A subset of the set of tuples is associated with a pane in the plurality of panes.

  13. Computer systems and methods for the query and visualization of multidimensional databases

    DOE Patents [OSTI]

    Stolte, Chris; Tang, Diane L.; Hanrahan, Patrick

    2006-08-08T23:59:59.000Z

    A method and system for producing graphics. A hierarchical structure of a database is determined. A visual table, comprising a plurality of panes, is constructed by providing a specification that is in a language based on the hierarchical structure of the database. In some cases, this language can include fields that are in the database schema. The database is queried to retrieve a set of tuples in accordance with the specification. A subset of the set of tuples is associated with a pane in the plurality of panes.

  14. Process Analytical Technology in biopharmaceutical manufacturing

    E-Print Network [OSTI]

    Cosby, Samuel T. (Samuel Thomas)

    2013-01-01T23:59:59.000Z

    Process Analytical Technology (PAT) became a well-defined concept within the pharmaceutical industry as a result of a major initiative by the FDA called "Pharmaceutical cGMPs for the 21st Century: A Risk-Based Approach." ...

  15. Sensor for detecting and differentiating chemical analytes

    DOE Patents [OSTI]

    Yi, Dechang (Metuchen, NJ); Senesac, Lawrence R. (Knoxville, TN); Thundat, Thomas G. (Knoxville, TN)

    2011-07-05T23:59:59.000Z

    A sensor for detecting and differentiating chemical analytes includes a microscale body having a first end and a second end and a surface between the ends for adsorbing a chemical analyte. The surface includes at least one conductive heating track for heating the chemical analyte and also a conductive response track, which is electrically isolated from the heating track, for producing a thermal response signal from the chemical analyte. The heating track is electrically connected with a voltage source and the response track is electrically connected with a signal recorder. The microscale body is restrained at the first end and the second end and is substantially isolated from its surroundings therebetween, thus having a bridge configuration.

  16. Implicit costs of data and analytics

    E-Print Network [OSTI]

    Kapicka, Bryan A. (Bryan Anderson)

    2014-01-01T23:59:59.000Z

    Firms have been able to utilize data and analytics to achieve a variety of economic benefits. To realize this value, firms have to invest in the necessary information technology, process updates, and employee training. ...

  17. Analytical Layer Planning for Nanometer VLSI Designs

    E-Print Network [OSTI]

    Chang, Chi-Yu

    2012-10-19T23:59:59.000Z

    i ANALYTICAL LAYER PLANNING FOR NANOMETER VLSI DESIGNS A Thesis by CHI-YU CHANG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 2012 Major Subject: Electrical Engineering ii ANALYTICAL LAYER PLANNING FOR NANOMETER VLSI DESIGNS A Thesis by CHI-YU CHANG Submitted to the Office of Graduate Studies of Texas A&M University in partial...

  18. Building up the elliptic flow: analytical insights

    E-Print Network [OSTI]

    Yoshitaka Hatta; Bo-Wen Xiao

    2014-07-15T23:59:59.000Z

    In this paper, we present a fully analytical description of the early-stage formation of elliptic flow in relativistic viscous hydrodynamics. We first construct an elliptic deformation of Gubser flow which is a boost invariant solution of the Navier-Stokes equation with a nontrivial transverse profile. We then analytically calculate the momentum anisotropy of the flow as a function of time and discuss the connection with the empirical formula by Bhalerao {\\it et al.} regarding the viscosity dependence of elliptic flow.

  19. Preconcentration and separation of analytes in microchannels

    DOE Patents [OSTI]

    Hatch, Anson (Tracy, CA); Singh, Anup K. (Danville, CA); Herr, Amy E. (Fremont, CA); Throckmorton, Daniel J. (Tracy, CA)

    2010-11-09T23:59:59.000Z

    Disclosed herein are methods and devices for preconcentrating and separating analytes such as proteins and polynucleotides in microchannels. As disclosed, at least one size-exclusion polymeric element is adjacent to processing area or an assay area in a microchannel which may be porous polymeric element. The size-exclusion polymeric element may be used to manipulate, e.g. concentrate, analytes in a sample prior to assaying in the assay area.

  20. Analytic Coleman-de Luccia Geometries

    SciTech Connect (OSTI)

    Dong, Xi; /Stanford U., ITP /Stanford U., Phys. Dept. /SLAC; Harlow, Daniel; /Stanford U., ITP /Stanford U., Phys. Dept.

    2012-02-16T23:59:59.000Z

    We present the necessary and sufficient conditions for a Euclidean scale factor to be a solution of the Coleman-de Luccia equations for some analytic potential V ({psi}), with a Lorentzian continuation describing the growth of a bubble of lower-energy vacuum surrounded by higher-energy vacuum. We then give a set of explicit examples that satisfy the conditions and thus are closed-form analytic examples of Coleman-de Luccia geometries.

  1. Appears in Secure Data Management: Second VLDB Workshop--SDM 2005, Lecture Notes in Computer Science 3674 (2005) 3346. Springer-Verlag. Experiments With Queries Over Encrypted

    E-Print Network [OSTI]

    Schoenmakers, Berry

    Appears in Secure Data Management: Second VLDB Workshop--SDM 2005, Lecture Notes in Computer which data was queried. The idea behind PIR is to replicate the data among several non that no server will learn the whole query by itself. Chor et al [4] prove that PIR with a single server can only

  2. Detection of Low Volatility Organic Analytes on Soils Using Infrared...

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

    Low Volatility Organic Analytes on Soils Using Infrared Reflection Spectroscopy. Detection of Low Volatility Organic Analytes on Soils Using Infrared Reflection Spectroscopy....

  3. analytical system involving: Topics by E-print Network

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

    Analytics. Desired: Successful completion of graduate courses in general linear models or statistical quality control Shepp, Larry 3 Analytic reconstruction of some...

  4. An Analytical Approach for Tail-Pipe Emissions Estimation with...

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

    An Analytical Approach for Tail-Pipe Emissions Estimation with Coupled Engine and Aftertreatment System An Analytical Approach for Tail-Pipe Emissions Estimation with Coupled...

  5. BUSINESS ANALYTICS CONCENTRATION FOR UNDERGRADUATES The business analytics concentration, like a major, focuses on using information to develop business

    E-Print Network [OSTI]

    Salama, Khaled

    their business models. Possible Job Titles Data scientist, business analytics specialist, customer relationshipBUSINESS ANALYTICS CONCENTRATION FOR UNDERGRADUATES The business analytics concentration, like a major, focuses on using information to develop business insights and influence decision

  6. One (Block) Size Fits All: PIR and SPIR with Variable-Length Records via Multi-Block Queries

    E-Print Network [OSTI]

    Goldberg, Ian

    One (Block) Size Fits All: PIR and SPIR with Variable-Length Records via Multi-Block Queries Ryan-theoretic private information retrieval (IT-PIR) scheme. Our new multi-block IT-PIR trades off some Byzantine costs within a small factor of the lowest possible. With our new multi-block IT-PIR protocol

  7. Public Key Encryption that Allows PIR Queries Dan Boneh # Eyal Kushilevitz + Rafail Ostrovsky # William E. Skeith III

    E-Print Network [OSTI]

    Ostrovsky, Rafail

    Public Key Encryption that Allows PIR Queries Dan Boneh # Eyal Kushilevitz + Rafail Ostrovsky a public­key encryption scheme for Alice that allows PIR searching over encrypted documents. Our solution­trivially small communication complexity. The main technique of our solution also allows for Single­Database PIR

  8. Initial queries into the notion of Power Users of Technology -Investigating ideas of production, competence and identity

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ' or young people's1 use of technology. What distinguishes the Power User research initiative and makes1 Initial queries into the notion of Power Users of Technology - Investigating ideas of production, which I find very important in order to un- derstand the notion of "Power Users of Technology

  9. Query Routing: Finding Ways in the Maze of the Deep Web Govind Kabra Chengkai Li Kevin Chen-Chuan Chang

    E-Print Network [OSTI]

    Li, Chengkai

    Query Routing: Finding Ways in the Maze of the Deep Web Govind Kabra Chengkai Li Kevin Chen-occurrence framework for ranking and select- ing Deep Web sources that provide information relevant to users requirement. Given the huge number of heterogeneous Deep Web data sources, the end users may not know

  10. GeoDec : A Multi-Layered Query Processing Framework for Spatio-Temporal Data (Demo Paper)

    E-Print Network [OSTI]

    Shahabi, Cyrus

    of today's ever growing and dy- namic geospatial data requires the development of novel vi- sual analysis--complexity mea- sures, performance measures General Terms Geospatial data, visual analysis, spatio capable of supporting queries and visualizations of real- world geospatial data sets. We show, for various

  11. A Query-by-Example Content-Based Image Retrieval System of Non-Melanoma Skin Lesions

    E-Print Network [OSTI]

    Fisher, Bob

    A Query-by-Example Content-Based Image Retrieval System of Non-Melanoma Skin Lesions Lucia classes, including two non-melanoma cancer types are used. Colour and texture features are extracted from for images acquired by epiluminescence microscopy (ELM or dermoscopy) and they focus on melanoma, which

  12. Model-based Querying in Sensor Networks Amol Deshpande, University of Maryland, http://www.cs.umd.edu/~amol

    E-Print Network [OSTI]

    Deshpande, Amol

    ://db.lcs.mit.edu/madden SYNONYMS Approximate querying; Model-driven data acquisition DEFINITION The data generated by sensor is required to complement the sensor data. Models can help provide more robust interpretations of sensor readings: by accounting for spatial or temporal biases in the observed data, by identifying sensors

  13. A SOM-based Multimodal System for Musical Query-by-Content Kyle Dickerson and Dan Ventura

    E-Print Network [OSTI]

    Martinez, Tony R.

    A SOM-based Multimodal System for Musical Query-by-Content Kyle Dickerson and Dan Ventura Abstract proposed the design of a system that uses a SOM to reduce the dimensionality Kyle Dickerson and Dan Ventura.dickerson@gmail.com, ventura@cs.byu.edu). of the feature space, allowing the use of simple (Euclidean) distance metrics [13

  14. Supernova neutrino oscillations: A simple analytical approach

    E-Print Network [OSTI]

    G. L. Fogli; E. Lisi; D. Montanino; A. Palazzo

    2001-11-15T23:59:59.000Z

    Analyses of observable supernova neutrino oscillation effects require the calculation of the electron (anti)neutrino survival probability P_ee along a given supernova matter density profile. We propose a simple analytical prescription for P_ee, based on a double-exponential form for the crossing probability and on the concept of maximum violation of adiabaticity. In the case of two-flavor transitions, the prescription is shown to reproduce accurately, in the whole neutrino oscillation parameter space, the results of exact numerical calculations for generic (realistic or power-law) profiles. The analytical approach is then generalized to cover three-flavor transitions with (direct or inverse) mass spectrum hierarchy, and to incorporate Earth matter effects. Compact analytical expressions, explicitly showing the symmetry properties of P_ee, are provided for practical calculations.

  15. Analytical Chemistry Core Capability Assessment - Preliminary Report

    SciTech Connect (OSTI)

    Barr, Mary E. [Los Alamos National Laboratory; Farish, Thomas J. [Los Alamos National Laboratory

    2012-05-16T23:59:59.000Z

    The concept of 'core capability' can be nebulous one. Even at a fairly specific level, where core capability equals maintaining essential services, it is highly dependent upon the perspective of the requestor. Samples are submitted to analytical services because the requesters do not have the capability to conduct adequate analyses themselves. Some requests are for general chemical information in support of R and D, process control, or process improvement. Many analyses, however, are part of a product certification package and must comply with higher-level customer quality assurance requirements. So which services are essential to that customer - just those for product certification? Does the customer also (indirectly) need services that support process control and improvement? And what is the timeframe? Capability is often expressed in terms of the currently utilized procedures, and most programmatic customers can only plan a few years out, at best. But should core capability consider the long term where new technologies, aging facilities, and personnel replacements must be considered? These questions, and a multitude of others, explain why attempts to gain long-term consensus on the definition of core capability have consistently failed. This preliminary report will not try to define core capability for any specific program or set of programs. Instead, it will try to address the underlying concerns that drive the desire to determine core capability. Essentially, programmatic customers want to be able to call upon analytical chemistry services to provide all the assays they need, and they don't want to pay for analytical chemistry services they don't currently use (or use infrequently). This report will focus on explaining how the current analytical capabilities and methods evolved to serve a variety of needs with a focus on why some analytes have multiple analytical techniques, and what determines the infrastructure for these analyses. This information will be useful in defining a roadmap for what future capability needs to look like.

  16. Analytical modeling of balloon launch dynamics

    E-Print Network [OSTI]

    Strganac, Thomas W

    1980-01-01T23:59:59.000Z

    Subject; Aerospace Engineer1ng ANALYTICAL MODELING OF BALLOON LAUNCH DYNAMICS A Thesis by THOMAS WILLIAM STRGANAC Approved as to sty1e and content by: (Chairman of Committee) (Member) (Member) (Head of Dep rtment) December 1980 ABSTRACT Analyt1... aerodynam1cs. Actual fl1ght data has been used to qualify the model via comparisons of the launch trans1ent configurations. DEDICATION To my father. . THOMAS JOHN STRGANAC 1922-1980 . . . who provided me the examp1e to fo1Iow in life. ACKNOWLEDGEMENTS...

  17. Guide to Savannah River Laboratory Analytical Services Group

    SciTech Connect (OSTI)

    Not Available

    1990-04-01T23:59:59.000Z

    The mission of the Analytical Services Group (ASG) is to provide analytical support for Savannah River Laboratory Research and Development Programs using onsite and offsite analytical labs as resources. A second mission is to provide Savannah River Site (SRS) operations with analytical support for nonroutine material characterization or special chemical analyses. The ASG provides backup support for the SRS process control labs as necessary.

  18. Enhancing Law Enforcement Using Data & Visual Analytics

    E-Print Network [OSTI]

    Authority of New York and New Jersey (PA NY/NJ), Pacific Northwest National Labs (PNNL), Intuidex will integrate visual analytics methods developed at PNNL to mine valuable links between entities in order Authority of New York and New Jersey (PA NY/NJ) Pacific Northwest National Laboratory (PNNL) Intuidex

  19. NERSC Analytics Program Status and Update

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    spanning all aspects of analytics, high performance computing, and many science domains. SGI Altix 32, application, and deployment of a diverse array of technologies spanning the domains of high performance computing, data management, data analysis and visualization, and workflow management. #12;DOE CGF April 29

  20. Software Analytics: Achievements and Challenges Dongmei Zhang

    E-Print Network [OSTI]

    Xie, Tao

    , USA Email: xie@csc.ncsu.edu Abstract--A huge wealth of various data exist in the practice of software insightful and actionable information; such information is used for completing various tasks around software and challenges of research and practice on principles, techniques, and applications of soft- ware analytics

  1. Analytical Study of Thermonuclear Reaction Probability Integrals

    E-Print Network [OSTI]

    M. A. Chaudhry; H. J. Haubold; A. M. Mathai

    2000-01-16T23:59:59.000Z

    An analytic study of the reaction probability integrals corresponding to the various forms of the slowly varying cross-section factor $S(E)$ is attempted. Exact expressions for reaction probability integrals are expressed in terms of the extended gamma functions.

  2. Edison is Back and Faster

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEA :Work4/11ComputationalEd Westcott: Legacy inEdisonEdison

  3. Edison is Back and Faster

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscoveringESnet UpdateEarthTrouble Shooting andEdison is

  4. Trace Analytical Techniques for Nuclear Forensics

    SciTech Connect (OSTI)

    Halverson, J.E.

    1999-04-28T23:59:59.000Z

    Over the history of the Savannah River Site, the Savannah River Technology Center (SRTC) has developed high sensitivity analytical capabilities in support of the Site's Environmental Monitoring Program and nuclear material protection process. Many of these techniques are applicable to the developing need for nuclear forensic analysis capabilities. Radiological and critically control procedures are in place at the SRTC, as well as clean room practices, to minimize the potential for a radiological evidentiary sample to contaminate personnel and the facility, as well as to minimize contaminating the sample thus rendering it useless by law enforcement agencies. Some of the trace analytical techniques available at the SRTC include ultra-low-level gamma and alpha spectrometry, high-sensitivity thermal ionization mass spectrometry, time-of-flight secondary ion mass spectrometry and trace organic analyses. These techniques have been tested during a planned domestic smuggling exercise and in the analysis of an unknown sample.In the event of an interdiction involving the illegal use or movement of radioactive material by U.S. law enforcement agencies (local, state or federal) forensic analyses will be used in developing and building a legal case against the perpetrators. The Savannah River Technology Center (SRTC) at the U.S. Department of Energy's Savannah River Site, a former nuclear production site currently conducting nuclear material stabilization missions, located in Aiken South Carolina, has a long history of performing trace analytical analyses for environmental monitoring. Many of these techniques are also applicable to nuclear forensic analyses. A summary of the trace analytical techniques used at the SRTC, which are applicable to Nuclear Forensics, is presented in this paper.Contamination control, of facilities and personnel involved in the analytical analyses, as well as preventing contamination of the sample, is a unique challenge for nuclear forensic analyses. A discussion of sample handling and contamination control procedures is included in this paper. Some of the applicable analytical techniques available at the SRTC for nuclear forensic analyses include: ultra-low-level gamma and alpha spectroscopy, high-sensitivity thermal-ionization mass spectrometry (TIMS), time-of-flight secondary ion mass spectrometry (TOF-SIMS), and trace organic analyses. Results from analyses of special nuclear material (SNM) standards, materials from nuclear smuggling exercises, and materials of unknown origin will be presented.

  5. An Analytical Solution on Convective and Diffusive Transport of Analyte in Laminar Flow of Microfluidic Slit

    E-Print Network [OSTI]

    Chen, X.

    Microfluidic devices could find applications in many areas, such as BioMEMs, miniature fuel cells and microfluidic cooling of electronic circuitry. One of the important considerations of microfluidic device in analytical ...

  6. Electrospray ion source with reduced analyte electrochemistry

    DOE Patents [OSTI]

    Kertesz, Vilmos; Van Berkel, Gary J

    2013-07-30T23:59:59.000Z

    An electrospray ion (ESI) source and method capable of ionizing an analyte molecule without oxidizing or reducing the analyte of interest. The ESI source can include an emitter having a liquid conduit, a working electrode having a liquid contacting surface, a spray tip, a secondary working electrode, and a charge storage coating covering partially or fully the liquid contacting surface of the working electrode. The liquid conduit, the working electrode and the secondary working electrode can be in liquid communication. The electrospray ion source can also include a counter electrode proximate to, but separated from, said spray tip. The electrospray ion source can also include a power system for applying a voltage difference between the working electrodes and a counter-electrode. The power system can deliver pulsed voltage changes to the working electrodes during operation of said electrospray ion source to minimize the surface potential of the charge storage coating.

  7. Comparison of open source visual analytics toolkits.

    SciTech Connect (OSTI)

    Crossno, Patricia Joyce; Harger, John R.

    2010-11-01T23:59:59.000Z

    We present the results of the first stage of a two-stage evaluation of open source visual analytics packages. This stage is a broad feature comparison over a range of open source toolkits. Although we had originally intended to restrict ourselves to comparing visual analytics toolkits, we quickly found that very few were available. So we expanded our study to include information visualization, graph analysis, and statistical packages. We examine three aspects of each toolkit: visualization functions, analysis capabilities, and development environments. With respect to development environments, we look at platforms, language bindings, multi-threading/parallelism, user interface frameworks, ease of installation, documentation, and whether the package is still being actively developed.

  8. Electrospray ion source with reduced analyte electrochemistry

    DOE Patents [OSTI]

    Kertesz, Vilmos [Knoxville, TN; Van Berkel, Gary [Clinton, TN

    2011-08-23T23:59:59.000Z

    An electrospray ion (ESI) source and method capable of ionizing an analyte molecule without oxidizing or reducing the analyte of interest. The ESI source can include an emitter having a liquid conduit, a working electrode having a liquid contacting surface, a spray tip, a secondary working electrode, and a charge storage coating covering partially or fully the liquid contacting surface of the working electrode. The liquid conduit, the working electrode and the secondary working electrode can be in liquid communication. The electrospray ion source can also include a counter electrode proximate to, but separated from, said spray tip. The electrospray ion source can also include a power system for applying a voltage difference between the working electrodes and a counter-electrode. The power system can deliver pulsed voltage changes to the working electrodes during operation of said electrospray ion source to minimize the surface potential of the charge storage coating.

  9. Analytical model for Stirling cycle machine design

    E-Print Network [OSTI]

    Formosa, Fabien; 10.1016/j.enconman.2010.02.010

    2013-01-01T23:59:59.000Z

    In order to study further the promising free piston Stirling engine architecture, there is a need of an analytical thermodynamic model which could be used in a dynamical analysis for preliminary design. To aim at more realistic values, the models have to take into account the heat losses and irreversibilities on the engine. An analytical model which encompasses the critical flaws of the regenerator and furthermore the heat exchangers effectivenesses has been developed. This model has been validated using the whole range of the experimental data available from the General Motor GPU-3 Stirling engine prototype. The effects of the technological and operating parameters on Stirling engine performance have been investigated. In addition to the regenerator influence, the effect of the cooler effectiveness is underlined.

  10. Analytical evaluation of onion flavor and pungency

    E-Print Network [OSTI]

    Fitzgerald, James Wallace

    1980-01-01T23:59:59.000Z

    Major Subject: Food Science and Technology ANALYTICAL EVALUATION OF ONION FLAVOR AND PUNGENCY A Thesis by James Wallace Fitzgerald Approved as to st le and content by: Chairman of Committee He d of Departmen Member Member December 1980..., and love. It is to these special people that this manuscr1pt 1s dedicated. TABLE OF CONTENTS Abstract . Acknowledgements Table of Contents List of Tables . List of Figures Introduction . Objectives Literature Review History . Food Value Flavor...

  11. Experimental and analytical study of rotating cavitation

    SciTech Connect (OSTI)

    Kamijo, Kenjiro; Shimura, Takashi; Tsujimoto, Yoshinobu [National Aerospace Lab., Miyagi (Japan). Kakuda Research Center

    1994-12-31T23:59:59.000Z

    This paper describes experimental and analytical results of rotating cavitation. There are four major sections in this paper. The first section presents the main characteristics of rotating cavitation which was found in the inducer test using a water tunnel. The second section describes the rotating cavitation which occurred in the development test of an LE-7 liquid oxygen pump for the H-II rocket. Also described in this section is how the rotating cavitation was suppressed. The rotating cavitation was the cause of both super synchronous shaft vibration and an unstable head coefficient curve. The third section presents how the theory of rotating cavitation was developed. The final section shows the measured cavitation compliance and mass flow gain factor of the LE-7 pump inducer for comparison of the experimental and analytical results of the rotating cavitation of the LE-7 pump inducer. Almost all the information presented in this paper has already been reported by Kamijo et al. (1977, 1980, 1993, 1993) and by Shimura (1993). In the present paper, the authors attempt to combine and give a clear overview of the experimental and analytical results described in the previous papers to systematically show their experience and findings on rotating cavitation.

  12. An Interactive Visual Analytics Framework for Multi-Field Data...

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

    Interactive Visual Analytics Framework for Multi-Field Data in a Geo-Spatial Context. An Interactive Visual Analytics Framework for Multi-Field Data in a Geo-Spatial Context....

  13. analytical tool supporting: Topics by E-print Network

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

    an Analytical Tool for Track Component Response (I-TRACK) Thiago B. do Carmo, J, NV 7 October 2013 12;Slide 2Simplified Analytical Tool and Parametric Analysis Outline ...

  14. A method for interpreting continental and analytic epistemology

    E-Print Network [OSTI]

    McCoy, Sarah Ruth

    1999-01-01T23:59:59.000Z

    of this thesis is to investigate the feasibility and profitability of communication between analytic and continental philosophy in epistemology. Wittgenstein's concept of language games will be used to frame the issue', continental and analytic philosophers play...

  15. Analytical modeling of contaminant transport and horizontal well hydraulics

    E-Print Network [OSTI]

    Park, Eungyu

    2004-09-30T23:59:59.000Z

    This dissertation is composed of three parts of major contributions. In Chapter II, we discuss analytical study of contaminant transport from a finite source in a finite-thickness aquifer. This chapter provides analytical solutions of contaminant...

  16. Recent results on analytical plasma turbulence theory: Realizability, intermittency, submarginal

    E-Print Network [OSTI]

    Recent results on analytical plasma turbulence theory: Realizability, intermittency, submarginal Phys. Control. Fusion 1. Introduction Two fundamental challenges in the systematic analytical theory as f . = # # f # for n = 1, where . = denotes definition and #. . .# denotes an ensemble average) #12

  17. An analytically solvable, axially non-homogeneous reactor model

    E-Print Network [OSTI]

    Pzsit, Imre

    and Glasstone,1970) and analytically in 1-D noise problems (Kosa ly et al., 1977). The general conclusion

  18. EQUIVALENCE RELATIONS FOR TWO VARIABLE REAL ANALYTIC FUNCTION GERMS

    E-Print Network [OSTI]

    EQUIVALENCE RELATIONS FOR TWO VARIABLE REAL ANALYTIC FUNCTION GERMS SATOSHI KOIKE & ADAM PARUSINSKI Abstract. For two variable real analytic function germs we compare the blow- analytic equivalence in the sense of Kuo to the other natural equivalence relations. Our main theorem states that C1 equivalent

  19. Analytic models of plausible gravitational lens potentials

    E-Print Network [OSTI]

    Edward A. Baltz; Phil Marshall; Masamune Oguri

    2008-12-11T23:59:59.000Z

    Gravitational lenses on galaxy scales are plausibly modelled as having ellipsoidal symmetry and a universal dark matter density profile, with a Sersic profile to describe the distribution of baryonic matter. Predicting all lensing effects requires knowledge of the total lens potential: in this work we give analytic forms for that of the above hybrid model. Emphasising that complex lens potentials can be constructed from simpler components in linear combination, we provide a recipe for attaining elliptical symmetry in either projected mass or lens potential. We also provide analytic formulae for the lens potentials of Sersic profiles for integer and half-integer index. We then present formulae describing the gravitational lensing effects due to smoothly-truncated universal density profiles in cold dark matter model. For our isolated haloes the density profile falls off as radius to the minus fifth or seventh power beyond the tidal radius, functional forms that allow all orders of lens potential derivatives to be calculated analytically, while ensuring a non-divergent total mass. We show how the observables predicted by this profile differ from that of the original infinite-mass NFW profile. Expressions for the gravitational flexion are highlighted. We show how decreasing the tidal radius allows stripped haloes to be modelled, providing a framework for a fuller investigation of dark matter substructure in galaxies and clusters. Finally we remark on the need for finite mass halo profiles when doing cosmological ray-tracing simulations, and the need for readily-calculable higher order derivatives of the lens potential when studying catastrophes in strong lenses.

  20. Analytic models of plausible gravitational lens potentials

    SciTech Connect (OSTI)

    Baltz, Edward A.; Marshall, Phil; Oguri, Masamune, E-mail: eabaltz@slac.stanford.edu, E-mail: pjm@physics.ucsb.edu, E-mail: oguri@slac.stanford.edu [Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, PO Box 20450, MS29, Stanford, CA 94309 (United States)] [Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, PO Box 20450, MS29, Stanford, CA 94309 (United States)

    2009-01-15T23:59:59.000Z

    Gravitational lenses on galaxy scales are plausibly modelled as having ellipsoidal symmetry and a universal dark matter density profile, with a Sersic profile to describe the distribution of baryonic matter. Predicting all lensing effects requires knowledge of the total lens potential: in this work we give analytic forms for that of the above hybrid model. Emphasising that complex lens potentials can be constructed from simpler components in linear combination, we provide a recipe for attaining elliptical symmetry in either projected mass or lens potential. We also provide analytic formulae for the lens potentials of Sersic profiles for integer and half-integer index. We then present formulae describing the gravitational lensing effects due to smoothly-truncated universal density profiles in cold dark matter model. For our isolated haloes the density profile falls off as radius to the minus fifth or seventh power beyond the tidal radius, functional forms that allow all orders of lens potential derivatives to be calculated analytically, while ensuring a non-divergent total mass. We show how the observables predicted by this profile differ from that of the original infinite-mass NFW profile. Expressions for the gravitational flexion are highlighted. We show how decreasing the tidal radius allows stripped haloes to be modelled, providing a framework for a fuller investigation of dark matter substructure in galaxies and clusters. Finally we remark on the need for finite mass halo profiles when doing cosmological ray-tracing simulations, and the need for readily-calculable higher order derivatives of the lens potential when studying catastrophes in strong lenses.

  1. Analytic Models of Plausible Gravitational Lens Potentials

    SciTech Connect (OSTI)

    Baltz, Edward A.; Marshall, Phil; Oguri, Masamune

    2007-05-04T23:59:59.000Z

    Gravitational lenses on galaxy scales are plausibly modeled as having ellipsoidal symmetry and a universal dark matter density profile, with a Sersic profile to describe the distribution of baryonic matter. Predicting all lensing effects requires knowledge of the total lens potential: in this work we give analytic forms for that of the above hybrid model. Emphasizing that complex lens potentials can be constructed from simpler components in linear combination, we provide a recipe for attaining elliptical symmetry in either projected mass or lens potential.We also provide analytic formulae for the lens potentials of Sersic profiles for integer and half-integer index. We then present formulae describing the gravitational lensing effects due to smoothly-truncated universal density profiles in cold dark matter model. For our isolated haloes the density profile falls off as radius to the minus fifth or seventh power beyond the tidal radius, functional forms that allow all orders of lens potential derivatives to be calculated analytically, while ensuring a non-divergent total mass. We show how the observables predicted by this profile differ from that of the original infinite-mass NFW profile. Expressions for the gravitational flexion are highlighted. We show how decreasing the tidal radius allows stripped haloes to be modeled, providing a framework for a fuller investigation of dark matter substructure in galaxies and clusters. Finally we remark on the need for finite mass halo profiles when doing cosmological ray-tracing simulations, and the need for readily-calculable higher order derivatives of the lens potential when studying catastrophes in strong lenses.

  2. Photovoltaic Degradation Rates -- An Analytical Review

    SciTech Connect (OSTI)

    Jordan, D. C.; Kurtz, S. R.

    2012-06-01T23:59:59.000Z

    As photovoltaic penetration of the power grid increases, accurate predictions of return on investment require accurate prediction of decreased power output over time. Degradation rates must be known in order to predict power delivery. This article reviews degradation rates of flat-plate terrestrial modules and systems reported in published literature from field testing throughout the last 40 years. Nearly 2000 degradation rates, measured on individual modules or entire systems, have been assembled from the literature, showing a median value of 0.5%/year. The review consists of three parts: a brief historical outline, an analytical summary of degradation rates, and a detailed bibliography partitioned by technology.

  3. Analytical mesoscale modeling of aeolian sand transport

    E-Print Network [OSTI]

    Marc Lmmel; Anne Meiwald; Klaus Kroy

    2014-05-03T23:59:59.000Z

    We analyze the mesoscale structure of aeolian sand transport, based on a recently developed two-species continuum model. The calculated sand flux and important average characteristics of the grain trajectories are found to be in remarkable agreement with field and wind-tunnel data. We conclude that the essential mesoscale physics is insensitive to unresolved details on smaller scales and well captured by the coarse-grained analytical model, thus providing a sound basis for precise and numerically efficient mesoscale modeling of aeolian structure formation.

  4. Analytical solutions to matrix diffusion problems

    SciTech Connect (OSTI)

    Keklinen, Pekka, E-mail: pekka.kekalainen@helsinki.fi [Laboratory of Radiochemistry, Department of Chemistry, P.O. Box 55, FIN-00014 University of Helsinki (Finland)

    2014-10-06T23:59:59.000Z

    We report an analytical method to solve in a few cases of practical interest the equations which have traditionally been proposed for the matrix diffusion problem. In matrix diffusion, elements dissolved in ground water can penetrate the porous rock surronuding the advective flow paths. In the context of radioactive waste repositories this phenomenon provides a mechanism by which the area of rock surface in contact with advecting elements is greatly enhanced, and can thus be an important delay mechanism. The cases solved are relevant for laboratory as well for in situ experiments. Solutions are given as integral representations well suited for easy numerical solution.

  5. New User and Data Analytics Training

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparencyDOE Project Taps HPCNew User and Data Analytics Training

  6. Analytical Services Program | Department of Energy

    Energy Savers [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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRA NewslettersPartnership of the Americas | DepartmentAnalysisAnalytical

  7. Google Analytics | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/Exploration <GlacialGolden SpreadGomti BiotechUK JumpAnalytics

  8. Analyticity and the Holographic S-Matrix

    SciTech Connect (OSTI)

    Fitzpatrick, A.Liam; /Stanford U., Phys. Dept.; Kaplan, Jared; /SLAC

    2012-04-03T23:59:59.000Z

    We derive a simple relation between the Mellin amplitude for AdS/CFT correlation functions and the bulk S-Matrix in the flat spacetime limit, proving a conjecture of Penedones. As a consequence of the Operator Product Expansion, the Mellin amplitude for any unitary CFT must be a meromorphic function with simple poles on the real axis. This provides a powerful and suggestive handle on the locality vis-a-vis analyticity properties of the S-Matrix. We begin to explore analyticity by showing how the familiar poles and branch cuts of scattering amplitudes arise from the holographic description. For this purpose we compute examples of Mellin amplitudes corresponding to 1-loop and 2-loop Witten diagrams in AdS. We also examine the flat spacetime limit of conformal blocks, implicitly relating the S-Matrix program to the Bootstrap program for CFTs. We use this connection to show how the existence of small black holes in AdS leads to a universal prediction for the conformal block decomposition of the dual CFT.

  9. Secondary waste minimization in analytical methods

    SciTech Connect (OSTI)

    Green, D.W.; Smith, L.L.; Crain, J.S.; Boparai, A.S.; Kiely, J.T.; Yaeger, J.S.; Schilling, J.B. [Argonne National Lab., IL (United States). Analytical Chemistry Lab.

    1995-07-01T23:59:59.000Z

    The characterization phase of site remediation is an important and costly part of the process. Because toxic solvents and other hazardous materials are used in common analytical methods, characterization is also a source of new waste, including mixed waste. Alternative analytical methods can reduce the volume or form of hazardous waste produced either in the sample preparation step or in the measurement step. The authors are examining alternative methods in the areas of inorganic, radiological, and organic analysis. For determining inorganic constituents, alternative methods were studied for sample introduction into inductively coupled plasma spectrometers. Figures of merit for the alternative methods, as well as their associated waste volumes, were compared with the conventional approaches. In the radiological area, the authors are comparing conventional methods for gross {alpha}/{beta} measurements of soil samples to an alternative method that uses high-pressure microwave dissolution. For determination of organic constituents, microwave-assisted extraction was studied for RCRA regulated semivolatile organics in a variety of solid matrices, including spiked samples in blank soil; polynuclear aromatic hydrocarbons in soils, sludges, and sediments; and semivolatile organics in soil. Extraction efficiencies were determined under varying conditions of time, temperature, microwave power, moisture content, and extraction solvent. Solvent usage was cut from the 300 mL used in conventional extraction methods to about 30 mL. Extraction results varied from one matrix to another. In most cases, the microwave-assisted extraction technique was as efficient as the more common Soxhlet or sonication extraction techniques.

  10. Road Transportable Analytical Laboratory system. Phase 1

    SciTech Connect (OSTI)

    Finger, S.M.; Keith, V.F.; Spertzel, R.O.; De Avila, J.C.; O`Donnell, M.; Vann, R.L.

    1993-09-01T23:59:59.000Z

    This developmental effort clearly shows that a Road Transportable Analytical Laboratory System is a worthwhile and achievable goal. The RTAL is designed to fully analyze (radioanalytes, and organic and inorganic chemical analytes) 20 samples per day at the highest levels of quality assurance and quality control. It dramatically reduces the turnaround time for environmental sample analysis from 45 days (at a central commercial laboratory) to 1 day. At the same time each RTAL system will save the DOE over $12 million per year in sample analysis costs compared to the costs at a central commercial laboratory. If RTAL systems were used at the eight largest DOE facilities (at Hanford, Savannah River, Fernald, Oak Ridge, Idaho, Rocky Flats, Los Alamos, and the Nevada Test Site), the annual savings would be $96,589,000. The DOE`s internal study of sample analysis needs projects 130,000 environmental samples requiring analysis in FY 1994, clearly supporting the need for the RTAL system. The cost and time savings achievable with the RTAL system will accelerate and improve the efficiency of cleanup and remediation operations throughout the DOE complex.

  11. Analytical bunch compression studies for FLUTE

    E-Print Network [OSTI]

    Schreck, M

    2014-01-01T23:59:59.000Z

    The current article deals with analytical bunch compression studies for FLUTE whose results are compared to simulations. FLUTE is a linac-based electron accelerator with a design energy of approximately 40 MeV currently being constructed at the Karlsruhe Institute of Technology. One of the goals of FLUTE is to generate electron bunches with their length lying in the femtosecond regime. In the first phase this will be accomplished using a magnetic bunch compressor. This compressor forms the subject of the studies presented. The paper is divided into three parts. The first part deals with pure geometric investigations of the bunch compressor where space charge effects and the back reaction of bunches with coherent synchrotron radiation (CSR) are neglected. The second part is dedicated to the treatment of space charge effects and the third part gives some analytical results on the emission of CSR. The upshot is that the results of the first and the third part agree quite well with what is obtained from simulatio...

  12. Visual Analytics for Power Grid Contingency Analysis

    SciTech Connect (OSTI)

    Wong, Pak C.; Huang, Zhenyu; Chen, Yousu; Mackey, Patrick S.; Jin, Shuangshuang

    2014-01-20T23:59:59.000Z

    Contingency analysis is the process of employing different measures to model scenarios, analyze them, and then derive the best response to remove the threats. This application paper focuses on a class of contingency analysis problems found in the power grid management system. A power grid is a geographically distributed interconnected transmission network that transmits and delivers electricity from generators to end users. The power grid contingency analysis problem is increasingly important because of both the growing size of the underlying raw data that need to be analyzed and the urgency to deliver working solutions in an aggressive timeframe. Failure to do so may bring significant financial, economic, and security impacts to all parties involved and the society at large. The paper presents a scalable visual analytics pipeline that transforms about 100 million contingency scenarios to a manageable size and form for grid operators to examine different scenarios and come up with preventive or mitigation strategies to address the problems in a predictive and timely manner. Great attention is given to the computational scalability, information scalability, visual scalability, and display scalability issues surrounding the data analytics pipeline. Most of the large-scale computation requirements of our work are conducted on a Cray XMT multi-threaded parallel computer. The paper demonstrates a number of examples using western North American power grid models and data.

  13. The Human is the Loop: New Directions for Visual Analytics

    SciTech Connect (OSTI)

    Endert, Alexander; Hossain, Shahriar H.; Ramakrishnan, Naren; North, Chris; Fiaux, Patrick; Andrews, Christopher

    2014-01-28T23:59:59.000Z

    Visual analytics is the science of marrying interactive visualizations and analytic algorithms to support exploratory knowledge discovery in large datasets. We argue for a shift from a human in the loop philosophy for visual analytics to a human is the loop viewpoint, where the focus is on recognizing analysts work processes, and seamlessly fitting analytics into that existing interactive process. We survey a range of projects that provide visual analytic support contextually in the sensemaking loop, and outline a research agenda along with future challenges.

  14. ANALYTICAL SCIENCES 2001, VOL. 17 SUPPLEMENT i1031 2001 The Japan Society for Analytical Chemistry

    E-Print Network [OSTI]

    Kounaves, Samuel P.

    Sensors for Copper, Lead and Selenium Samuel P. KOUNAVES 1 , Oksana Yu. NADZHAFOVA 2 , Vladislav TARASOV 1 and Sandie H. TAN 1 1 Department of Chemistry, Tufts University, Medford, MA 02155, USA (E-mail: samuel were analytical grade. Stock metal solutions were prepared from 99.999% Cu (NO3)2 (Johnson Matthey

  15. Analytical, Visual, and Interactive Concepts for Geo-Visual Analytics Heidrun Schumanna,

    E-Print Network [OSTI]

    Tominski, Christian

    Supporting the visual analysis of structured multivariate geo-spatial data is a challenging task involving [15], Chapter 4). In this work, we consider visual analytics support for the analysis of multivariate and analysis of geo-spatial data. In particular, we address the visualization of hierarchical structures

  16. Summative Mass Analysis of Algal Biomass - Integration of Analytical Procedures: Laboratory Analytical Procedure (LAP)

    SciTech Connect (OSTI)

    Laurens, L. M. L.

    2013-12-01T23:59:59.000Z

    This procedure guides the integration of laboratory analytical procedures to measure algal biomass constituents in an unambiguous manner and ultimately achieve mass balance closure for algal biomass samples. Many of these methods build on years of research in algal biomass analysis.

  17. Laser ablation in analytical chemistry - A review

    SciTech Connect (OSTI)

    Russo, Richard E.; Mao, Xianglei; Liu, Haichen; Gonzalez, Jhanis; Mao, Samuel S.

    2001-10-10T23:59:59.000Z

    Laser ablation is becoming a dominant technology for direct solid sampling in analytical chemistry. Laser ablation refers to the process in which an intense burst of energy delivered by a short laser pulse is used to sample (remove a portion of) a material. The advantages of laser ablation chemical analysis include direct characterization of solids, no chemical procedures for dissolution, reduced risk of contamination or sample loss, analysis of very small samples not separable for solution analysis, and determination of spatial distributions of elemental composition. This review describes recent research to understand and utilize laser ablation for direct solid sampling, with emphasis on sample introduction to an inductively coupled plasma (ICP). Current research related to contemporary experimental systems, calibration and optimization, and fractionation is discussed, with a summary of applications in several areas.

  18. Analytical Improvements in PV Degradation Rate Determination

    SciTech Connect (OSTI)

    Jordan, D. C.; Kurtz, S. R.

    2011-02-01T23:59:59.000Z

    As photovoltaic (PV) penetration of the power grid increases, it becomes vital to know how decreased power output may affect cost over time. In order to predict power delivery, the decline or degradation rates must be determined accurately. For non-spectrally corrected data several complete seasonal cycles (typically 3-5 years) are required to obtain reasonably accurate degradation rates. In a rapidly evolving industry such a time span is often unacceptable and the need exists to determine degradation rates accurately in a shorter period of time. Occurrence of outliers and data shifts are two examples of analytical problems leading to greater uncertainty and therefore to longer observation times. In this paper we compare three methodologies of data analysis for robustness in the presence of outliers, data shifts and shorter measurement time periods.

  19. Sky coverage of orbital detectors. Analytical approach

    E-Print Network [OSTI]

    Diego Casadei

    2005-12-28T23:59:59.000Z

    Orbital detectors without pointing capability have to keep their field of view axis laying on their orbital plane, to observe the largest sky fraction. A general approach to estimate the exposure of each sky element for such detectors is a valuable tool in the R&D phase of a project, when the detector characteristics are still to be fixed. An analytical method to estimate the sky exposure is developed, which makes only few very reasonable approximations. The formulae obtained with this method are used to compute the histogram of the sky exposure of a hypothetical gamma-ray detector installed on the ISS. The C++ code used in this example is freely available on the http://cern.ch/casadei/software.html web page.

  20. Reusing Property Resulting from Analytical Laboratory Closure

    SciTech Connect (OSTI)

    Elmer, J. [S.M. Stoller Corporation, Grand Junction, CO 81503 (United States); DePinho, D.; Wetherstein, P. [Battelle Memorial Institute, Grand Junction, CO 81503 (United States)

    2006-07-01T23:59:59.000Z

    The U.S. Department of Energy Office of Legacy Management (DOE-LM) site in Grand Junction, Colorado, faced the problem of reusing an extensive assortment of laboratory equipment and supplies when its on-site analytical chemistry laboratory closed. This challenge, undertaken as part of the Grand Junction site's pollution prevention program, prioritized reuse of as much of the laboratory equipment and supplies as possible during a 9-month period in fiscal year 2004. Reuse remedies were found for approximately $3 million worth of instrumentation, equipment, chemicals, precious metals, and other laboratory items through other Grand Junction site projects, Federal Government databases, and extensive contact with other DOE facilities, universities, and colleges. In 2005, the DOE-LM Grand Junction site received two prestigious DOE pollution prevention awards for reuse of the laboratory's equipment and supplies. (authors)

  1. Analytic Torsion of Z_2-graded Elliptic Complexes

    E-Print Network [OSTI]

    Varghese Mathai; Siye Wu

    2010-04-10T23:59:59.000Z

    We define analytic torsion of Z_2-graded elliptic complexes as an element in the graded determinant line of the cohomology of the complex, generalizing most of the variants of Ray-Singer analytic torsion in the literature. It applies to a myriad of new examples, including flat superconnection complexes, twisted analytic and twisted holomorphic torsions, etc. The definition uses pseudo-differential operators and residue traces. We also study properties of analytic torsion for Z_2-graded elliptic complexes, including the behavior under variation of the metric. For compact odd dimensional manifolds, the analytic torsion is independent of the metric, whereas for even dimensional manifolds, a relative version of the analytic torsion is independent of the metric. Finally, the relation to topological field theories is studied.

  2. Analytic Torsion of Z_2-graded Elliptic Complexes

    E-Print Network [OSTI]

    Mathai, Varghese

    2010-01-01T23:59:59.000Z

    We define analytic torsion of Z_2-graded elliptic complexes as an element in the graded determinant line of the cohomology of the complex, generalizing most of the variants of Ray-Singer analytic torsion in the literature. It applies to a myriad of new examples, including flat superconnection complexes, twisted analytic and twisted holomorphic torsions, etc. The definition uses pseudo-differential operators and residue traces. We also study properties of analytic torsion for Z_2-graded elliptic complexes, including the behavior under variation of the metric. For compact odd dimensional manifolds, the analytic torsion is independent of the metric, whereas for even dimensional manifolds, a relative version of the analytic torsion is independent of the metric. Finally, the relation to topological field theories is studied.

  3. Analytical Chemistry Laboratory: Progress report for FY 1988

    SciTech Connect (OSTI)

    Green, D.W.; Heinrich, R.R.; Graczyk, D.G.; Lindahl, P.C.; Erickson, M.D.

    1988-12-01T23:59:59.000Z

    The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for fiscal year 1988 (October 1987 through September 1988). The Analytical Chemistry Laboratory is a full-cost recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. In addition, the ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems, from routine standard analyses to unique problems that require significant development of methods and techniques.

  4. Analytical Chemistry Laboratory progress report for FY 1991

    SciTech Connect (OSTI)

    Green, D.W.; Heinrich, R.R.; Graczyk, D.G.; Lindahl, P.C.; Boparai, A.S.

    1991-12-01T23:59:59.000Z

    The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year 1991 (October 1990 through September 1991). This is the eighth annual report for the ACL. The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. In addition, the ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems, from routine standard analyses to unique problems that require significant development of methods and techniques.

  5. Analytical Chemistry Laboratory progress report for FY 1989

    SciTech Connect (OSTI)

    Green, D.W.; Heinrich, R.R.; Graczyk, D.G.; Lindahl, P.C.; Erickson, M.D.

    1989-12-01T23:59:59.000Z

    The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year 1989 (October 1988 through September 1989). The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. In addition, the ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems, from routine standard analyses to unique problems that require significant development of methods and techniques.

  6. Determination of Ash in Biomass: Laboratory Analytical Procedure...

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

    Ash in Biomass Laboratory Analytical Procedure (LAP) Issue Date: 7172005 A. Sluiter, B. Hames, R. Ruiz, C. Scarlata, J. Sluiter, and D. Templeton Technical Report NREL...

  7. analytic geometries: Topics by E-print Network

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

    Phase Mask rejects all on-axis light for an unaberrated Lloyd, James P. 18 FINER FRACTAL GEOMETRY FOR ANALYTIC FAMILIES Mathematics Websites Summary: of meromorphic functions...

  8. analytical radiation model: Topics by E-print Network

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

    337 Coupled thermodynamic-dynamic semi-analytical model of Free Piston Stirling engines CERN Preprints Summary: The study of free piston Stirling engine (FPSE) requires both...

  9. analytical model assessing: Topics by E-print Network

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

    272 Coupled thermodynamic-dynamic semi-analytical model of Free Piston Stirling engines CERN Preprints Summary: The study of free piston Stirling engine (FPSE) requires both...

  10. analytical model probing: Topics by E-print Network

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

    299 Coupled thermodynamic-dynamic semi-analytical model of Free Piston Stirling engines CERN Preprints Summary: The study of free piston Stirling engine (FPSE) requires both...

  11. accurate analytical model: Topics by E-print Network

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

    Bruce 107 Coupled thermodynamic-dynamic semi-analytical model of Free Piston Stirling engines CERN Preprints Summary: The study of free piston Stirling engine (FPSE) requires both...

  12. analytical method based: Topics by E-print Network

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

    Kholghi, Mahnoosh 2011-01-01 276 Comparative analysis of remaining oil saturation in waterflood patterns based on analytical modeling and simulation Texas A&M University -...

  13. analytical chemistry: Topics by E-print Network

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

    from Analytical Chemistry, 1990, 62. Copyright 0 1990 by the American Chemical Society Ion Source Mark van Straaten,* Akos Vertes,' and Renaat Gijbels Department of Chemistry,...

  14. analytical chemistry division: Topics by E-print Network

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

    from Analytical Chemistry, 1990, 62. Copyright 0 1990 by the American Chemical Society Ion Source Mark van Straaten,* Akos Vertes,' and Renaat Gijbels Department of Chemistry,...

  15. analytical chemistry biochemical: Topics by E-print Network

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

    from Analytical Chemistry, 1990, 62. Copyright 0 1990 by the American Chemical Society Ion Source Mark van Straaten,* Akos Vertes,' and Renaat Gijbels Department of Chemistry,...

  16. analytical chemistry dac: Topics by E-print Network

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

    from Analytical Chemistry, 1990, 62. Copyright 0 1990 by the American Chemical Society Ion Source Mark van Straaten,* Akos Vertes,' and Renaat Gijbels Department of Chemistry,...

  17. analytical magnetohydrostatic equilibria: Topics by E-print Network

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

    solver to calculate solutions not accessible by previous analytical techniques with temperature or entropy prescribed as free functions of the magnetic flux function,...

  18. Analytical Tool Development for Aftertreatment Sub-Systems Integration...

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

    Tool Development for Aftertreatment Sub-Systems Integration Analytical Tool Development for Aftertreatment Sub-Systems Integration 2003 DEER Conference Presentation: Detroit Diesel...

  19. analytical instrumentation handbook: Topics by E-print Network

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

    Open Access Theses and Dissertations Summary: ??Three instrumental approaches to process analytical chemistry are introduced.First, a field portable, multiwavelength,...

  20. analytical mass spectrometry: Topics by E-print Network

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

    analytical methods for solving a variety of molecular structure problems. Among high. Extension of mass spectrometry to the analysis of high molecular weight materials,...

  1. analytical performance evaluation: Topics by E-print Network

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

    meta- analysis of the empirical evidence on the impact of CSP on firm financial performance. However, since this last meta-analytic review, dozens of studies examining the...

  2. analytical modeling approach: Topics by E-print Network

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

    nonperturbative analytical relativistic models of magnetars. With this purpose in mind we first develop a method for generating exact interior solutions to the static and...

  3. A Practical Analytic Model for Daylight Category: research

    E-Print Network [OSTI]

    Shirley, Peter

    A Practical Analytic Model for Daylight Category: research Abstract Sunlight and skylight that approximates full spectrum daylight for various atmospheric con­ ditions. These conditions are parameterized

  4. A Practical Analytic Model for Daylight Category: research

    E-Print Network [OSTI]

    Shirley, Peter

    A Practical Analytic Model for Daylight Category: research Abstract Sunlight and skylight that approximates full spectrum daylight for various atmospheric con- ditions. These conditions are parameterized

  5. analytical ion microscope: Topics by E-print Network

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

    Field-theoretical method is proposed, that yields analytical expression for lateral pressure distribution across hydrophobic core of a bilayer lipid membrane. Lipid molecule,...

  6. analytical chemistry general: Topics by E-print Network

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

    for students who have a prepared background in chemistry Ravikumar, B. 4 General syllabus for third-cycle studies in Technical Analytical Chemistry This syllabus has been...

  7. analytical resources securely: Topics by E-print Network

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

    Technologies and Information Sciences Websites Summary: An Analytical Model of Logic Resource Utilization for FPGA Architecture Development by Andrew H Designers constantly...

  8. PRELIMINARY SURVEY OF WINCHESTER ENGINEERING AND ANALYTICAL CENTER

    Office of Legacy Management (LM)

    WINCHESTER ENGINEERING AND ANALYTICAL CENTER Winchester, Massachusetts Work performed by the Health and Safety Research Division Oak Ridge National Laboratory Oak Ridge, Tennessee...

  9. An Analytical Framework for Long Term Policy for Commercial Deployment...

    Open Energy Info (EERE)

    An Analytical Framework for Long Term Policy for Commercial Deployment and Innovation in Carbon Capture and Sequestration Technology in the United States Jump to: navigation,...

  10. analytical aerodynamic model: Topics by E-print Network

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

    model allows analytically express the radial istributions of pressure and wind speed components. The vertical evolution of these distributions and hurricane structure in...

  11. analyte ion transformations: Topics by E-print Network

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

    to Build Data Sets for Data Mining, Data & Knowledge Engineering (DKE), 2014, Elsevier. DBMS 12 Ordonez, Carlos 4 Discrete analytical Ridgelet Transform Philippe CARR , Eric...

  12. approximate analytical solution: Topics by E-print Network

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

    extent. The homogeneous Barrash, Warren 477 Analytical solutions to a hillslope-storage kinematic wave equation for subsurface flow Environmental Sciences and Ecology Websites...

  13. approximate analytical solutions: Topics by E-print Network

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

    extent. The homogeneous Barrash, Warren 477 Analytical solutions to a hillslope-storage kinematic wave equation for subsurface flow Environmental Sciences and Ecology Websites...

  14. aerated flows analytical: Topics by E-print Network

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

    extent. The homogeneous Barrash, Warren 37 Analytical solutions to a hillslope-storage kinematic wave equation for subsurface flow Environmental Sciences and Ecology Websites...

  15. analytical waste solutions: Topics by E-print Network

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

    extent. The homogeneous Barrash, Warren 227 Analytical solutions to a hillslope-storage kinematic wave equation for subsurface flow Environmental Sciences and Ecology Websites...

  16. approximate analytic solutions: Topics by E-print Network

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

    extent. The homogeneous Barrash, Warren 477 Analytical solutions to a hillslope-storage kinematic wave equation for subsurface flow Environmental Sciences and Ecology Websites...

  17. analytical approximate solution: Topics by E-print Network

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

    extent. The homogeneous Barrash, Warren 477 Analytical solutions to a hillslope-storage kinematic wave equation for subsurface flow Environmental Sciences and Ecology Websites...

  18. analytical anisotropic algorithm: Topics by E-print Network

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

    THE EFFECTIVENESS OF ANISOTROPIC ANALYTICAL ALGORITHM IN FLATTENED AND FLATTENING-FILTER-FREE BEAMS FOR HIGH ENERGY LUNG DOSE DELIVERY USING THE RADIOLOGICAL PHYSICS CENTER LUNG...

  19. anisotropic analytical algorithm: Topics by E-print Network

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

    THE EFFECTIVENESS OF ANISOTROPIC ANALYTICAL ALGORITHM IN FLATTENED AND FLATTENING-FILTER-FREE BEAMS FOR HIGH ENERGY LUNG DOSE DELIVERY USING THE RADIOLOGICAL PHYSICS CENTER LUNG...

  20. analytical hot cells: Topics by E-print Network

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

    and Antenna 10-year Battery Kemner, Ken 4 Linear Power Spectra in Cold+Hot Dark Matter Models: Analytical Approximations and Applications Astrophysics (arXiv) Summary: This...

  1. Biodiesel Utilization: Update on Recent Analytical Techniques (Presentation)

    SciTech Connect (OSTI)

    Alleman, T. L.; Fouts, L.; Luecke, J.; Thornton, M.; McAlpin, C.

    2009-05-01T23:59:59.000Z

    To understand and increase the use of biodiesel, analytical methods need to be shared and compared to ensure that accurate data are gathered on this complex fuel.

  2. Guided Text Analysis Using Adaptive Visual Analytics

    SciTech Connect (OSTI)

    Steed, Chad A [ORNL] [ORNL; Symons, Christopher T [ORNL] [ORNL; DeNap, Frank A [ORNL] [ORNL; Potok, Thomas E [ORNL] [ORNL

    2012-01-01T23:59:59.000Z

    This paper demonstrates the promise of augmenting interactive visualizations with semi-supervised machine learning techniques to improve the discovery of significant associations and insight in the search and analysis of textual information. More specifically, we have developed a system called Gryffin that hosts a unique collection of techniques that facilitate individualized investigative search pertaining to an ever-changing set of analytical questions over an indexed collection of open-source publications related to national infrastructure. The Gryffin client hosts dynamic displays of the search results via focus+context record listings, temporal timelines, term- frequency views, and multiple coordinated views. Furthermore, as the analyst interacts with the display, the interactions are recorded and used to label the search records. These labeled records are then used to drive semi-supervised machine learning algorithms that re-rank the unlabeled search records such that potentially relevant records are moved to the top of the record listing. Gryffin is described in the context of the daily tasks encountered at the Department of Homeland Securitys Fusion Centers, with whom we are collaborating in its development. The resulting system is capable of addressing the analysts information overload that can be directly attributed to the deluge of information that must be addressed in search and investigative analysis of textual information.

  3. Analytic orbit propagation for transiting circumbinary planets

    E-Print Network [OSTI]

    Georgakarakos, Nikolaos

    2015-01-01T23:59:59.000Z

    The herein presented analytical framework fully describes the motion of coplanar systems consisting of a stellar binary and a planet orbiting both stars on orbital as well as secular timescales. Perturbations of the Runge-Lenz vector are used to derive short period evolution of the system, while octupole secular theory is applied to describe its long term behaviour. A post Newtonian correction on the stellar orbit is included. The planetary orbit is initially circular and the theory developed here assumes that the planetary eccentricity remains relatively small (e_2<0.2). Our model is tested against results from numerical integrations of the full equations of motion and is then applied to investigate the dynamical history of some of the circumbinary planetary systems discovered by NASA's Kepler satellite. Our results suggest that the formation history of the systems Kepler-34 and Kepler-413 has most likely been different from the one of Kepler-16, Kepler-35, Kepler-38 and Kepler-64, since the observed plan...

  4. Analytic torsion, vortices and positive Ricci curvature

    E-Print Network [OSTI]

    Berman, Robert J

    2010-01-01T23:59:59.000Z

    We characterize the global maximizers of a certain non-local functional defined on the space of all positively curved metrics on an ample line bundle L over a Kahler manifold X. This functional is an adjoint version, introduced by Berndtsson, of Donaldson's L-functional and generalizes the Ding-Tian functional whose critical points are Kahler-Einstein metrics of positive Ricci curvature. Applications to (1) analytic torsions on Fano manifolds (2) Chern-Simons-Higgs vortices on tori and (3) Kahler geometry are given. In particular, proofs of conjectures of (1) Gillet-Soul\\'e and Fang (concerning the regularized determinant of Dolbeault Laplacians on the two-sphere) (2) Tarantello and (3) Aubin (concerning Moser-Trudinger type inequalities) in these three settings are obtained. New proofs of some results in Kahler geometry are also obtained, including a lower bound on Mabuchi's K-energy and the uniqueness result for Kahler-Einstein metrics on Fano manifolds of Bando-Mabuchi. This paper is a substantially extend...

  5. Visual Analytics for Roof Savings Calculator Ensembles

    SciTech Connect (OSTI)

    Jones, Chad [University of California, Davis] [University of California, Davis; New, Joshua Ryan [ORNL] [ORNL; Sanyal, Jibonananda [ORNL] [ORNL; Ma, Kwan-Liu [University of California, Davis] [University of California, Davis

    2012-01-01T23:59:59.000Z

    The Roof Savings Calculator (RSC) has been deployed for DOE as an industry-consensus, web-based tool for easily running complex building energy simulations. These simulations allow both homeowners and experts to determine building-specific cost and energy savings for modern roof and attic technologies. Using a database of over 3 million RSC simulations for different combinations of parameters, we have built a visual analytics tool to assist in the exploration and identification of features in the data. Since the database contains multiple variables, both categorical and continuous, we employ a coordinated multi-view approach that allows coordinated feature exploration through multiple visualizations at once. The main component of our system, a parallel coordinates view, has been adapted to handle large-scale, mixed data types as are found in RSC simulations. Other visualizations include map coordinated plots, high dynamic range (HDR) line plot rendering, and an intuitive user interface. We demonstrate these techniques with several use cases that have helped identify software and parametric simulation issues.

  6. Guided Text Search Using Adaptive Visual Analytics

    SciTech Connect (OSTI)

    Steed, Chad A [ORNL; Symons, Christopher T [ORNL; Senter, James K [ORNL; DeNap, Frank A [ORNL

    2012-10-01T23:59:59.000Z

    This research demonstrates the promise of augmenting interactive visualizations with semi- supervised machine learning techniques to improve the discovery of significant associations and insights in the search and analysis of textual information. More specifically, we have developed a system called Gryffin that hosts a unique collection of techniques that facilitate individualized investigative search pertaining to an ever-changing set of analytical questions over an indexed collection of open-source documents related to critical national infrastructure. The Gryffin client hosts dynamic displays of the search results via focus+context record listings, temporal timelines, term-frequency views, and multiple coordinate views. Furthermore, as the analyst interacts with the display, the interactions are recorded and used to label the search records. These labeled records are then used to drive semi-supervised machine learning algorithms that re-rank the unlabeled search records such that potentially relevant records are moved to the top of the record listing. Gryffin is described in the context of the daily tasks encountered at the US Department of Homeland Security s Fusion Center, with whom we are collaborating in its development. The resulting system is capable of addressing the analysts information overload that can be directly attributed to the deluge of information that must be addressed in the search and investigative analysis of textual information.

  7. Analytic approximate radiation effects due to Bremsstrahlung

    SciTech Connect (OSTI)

    Ben-Zvi I.

    2012-02-01T23:59:59.000Z

    The purpose of this note is to provide analytic approximate expressions that can provide quick estimates of the various effects of the Bremsstrahlung radiation produced relatively low energy electrons, such as the dumping of the beam into the beam stop at the ERL or field emission in superconducting cavities. The purpose of this work is not to replace a dependable calculation or, better yet, a measurement under real conditions, but to provide a quick but approximate estimate for guidance purposes only. These effects include dose to personnel, ozone generation in the air volume exposed to the radiation, hydrogen generation in the beam dump water cooling system and radiation damage to near-by magnets. These expressions can be used for other purposes, but one should note that the electron beam energy range is limited. In these calculations the good range is from about 0.5 MeV to 10 MeV. To help in the application of this note, calculations are presented as a worked out example for the beam dump of the R&D Energy Recovery Linac.

  8. EvoGraphDice : Interactive Evolution for Visual Analytics

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    EvoGraphDice : Interactive Evolution for Visual Analytics Waldo Cancino, Nadia Boukhelifa, especially in frameworks like industrial design, decision making and visual analytics. Interactive Evolution visualization based on scatterplot matrices. EvoGraphDice interactively evolves com- pound additional dimensions

  9. An analytical approach to the Rational Simplex Problem

    E-Print Network [OSTI]

    Alexandrov, Victor

    An analytical approach to the Rational Simplex Problem Victor Alexandrov Abstract In 1973, J Simplex Problem: Given a geodesic simplex in the spherical 3-space so that all of its interior dihedral of the 3-sphere? We propose an analytical approach to the Rational Simplex Problem by deriving a function f

  10. Using analytic continuation for the hadronic vacuum polarization computation

    SciTech Connect (OSTI)

    Feng, Xu; Hashimoto, Shoji; Hotzel, Grit; Jansen, Karl; Petschlies, Marcus; Renner Dru B

    2014-11-01T23:59:59.000Z

    We present two examples of applications of the analytic continuation method for computing the hadronic vacuum polarization function in space- and time-like momentum regions. These examples are the Adler function and the leading order hadronic contribution to the muon anomalous magnetic moment. We comment on the feasibility of the analytic continuation method and provide an outlook for possible further applications.

  11. PHYLOGENOMICS AND POPULATION GENOMICS: MODDELS, ALGORITHMS, AND ANALYTICAL TOOLS

    E-Print Network [OSTI]

    Rosenberg, Noah

    PHYLOGENOMICS AND POPULATION GENOMICS: MODDELS, ALGORITHMS, AND ANALYTICAL TOOLS LUAY K. NAKHLEH on relationships among species themselves. The two fields share a number of overlapping tools, as well as similar analytical tools for assessing properties of the algorithms. We are pleased to present five papers

  12. Gaseous analytes of concern at Hanford Tank Farms. Topical report

    SciTech Connect (OSTI)

    NONE

    1996-03-01T23:59:59.000Z

    Large amounts of toxic and radioactive waste materials are stored in underground tanks at DOE sites. When the vapors in the tank headspaces vent to the open atmosphere a potentially dangerous situation can occur for personnel in the area. An open-path atmospheric pollution monitor is being developed for DOE to monitor the open air space above these tanks. In developing this monitor it is important to know what hazardous gases are most likely to be found in dangerous concentrations. These gases are called the Analytes of Concern. At the present time, measurements in eight tanks have detected thirty-one analytes in at least two tanks and fifteen analytes in only one tank. In addition to these gases, Carbon tetrachloride is considered to be an Analyte of Concern because it permeates the ground around the tanks. These Analytes are described and ranked according to a Hazard Index which combines their vapor pressure, density, and approximate danger level. The top sixteen ranked analytes which have been detected in at least two tanks comprise an {open_quotes}Analytes of Concern Test List{close_quotes} for determining the system performance of the atmospheric pollution monitor under development. A preliminary examination of the infrared spectra, barring atmospheric interferences, indicates that: The pollution monitor will detect all forty-seven Analytes!

  13. Analytical studies on transient groundwater flow induced by land reclamation

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    Analytical studies on transient groundwater flow induced by land reclamation Litang Hu,1 Jiu Jimmy materials into the sea. Land reclamation may have a significant effect on groundwater regimes, especially when the reclamation is at large scale. Analytical studies on the impact of land reclamation on steady

  14. Photo courtesy of Justin Reuter Dynamic Data Analytics (CDDA)

    E-Print Network [OSTI]

    Zadok, Erez

    the emerging importance of Dynamic Data Analytics (DDA) so that the U.S. is able to leverage its intellectual in an emerging field Industry members select the projects Dynamic Data Analytics is a prime candidate NSF Center for Information Protection working on Cyber-security Bioenergy Research and Development

  15. analytical optimization study: Topics by E-print Network

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

    analytical optimization study First Page Previous Page 1 2 3 4 5 6 7 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 An Analytical Model to...

  16. Analytical Chemistry CHM1102H Biosensors & Chemical Sensors

    E-Print Network [OSTI]

    Chan, Hue Sun

    hyphenated techniques that bridge to information detectors such as mass spectrometers. New opportunitiesAnalytical Chemistry CHM1102H Biosensors & Chemical Sensors (Cross-listed Undergraduate CHM414H-called "electronic nose". CHM1103H Advanced Topics in Analytical Chemistry (Cross-listed Undergraduate CHM414H - UTM

  17. Integrated nanoplasmonic-nanofluidic biosensors with targeted delivery of analytes

    E-Print Network [OSTI]

    Integrated nanoplasmonic-nanofluidic biosensors with targeted delivery of analytes Ahmet Ali Yanik the effective analyte transport. To overcome this limitation, we propose and demonstrate a nanoplasmonic-nanofluidic layers of microfluidic channels through plasmonic/nanofluidic holes. To implement the proposed sensor

  18. Sol-gel matrices for direct colorimetric detection of analytes

    DOE Patents [OSTI]

    Charych, Deborah H. (Albany, CA); Sasaki, Darryl (Albuquerque, NM); Yamanaka, Stacey (Dallas, TX)

    2000-01-01T23:59:59.000Z

    The present invention relates to methods and compositions for the direct detection of analytes using color changes that occur in immobilized biopolymeric material in response to selective binding of analytes to their surface. In particular, the present invention provides methods and compositions related to the encapsulation of biopolymeric material into metal oxide glass using the sol-gel method.

  19. Robust Accurate Non-Invasive Analyte Monitor

    DOE Patents [OSTI]

    Robinson, Mark R. (1603 Solano NE., Albuquerque, NM 87110)

    1998-11-03T23:59:59.000Z

    An improved method and apparatus for determining noninvasively and in vivo one or more unknown values of a known characteristic, particularly the concentration of an analyte in human tissue. The method includes: (1) irradiating the tissue with infrared energy (400 nm-2400 nm) having at least several wavelengths in a given range of wavelengths so that there is differential absorption of at least some of the wavelengths by the tissue as a function of the wavelengths and the known characteristic, the differential absorption causeing intensity variations of the wavelengths incident from the tissue; (2) providing a first path through the tissue; (3) optimizing the first path for a first sub-region of the range of wavelengths to maximize the differential absorption by at least some of the wavelengths in the first sub-region; (4) providing a second path through the tissue; and (5) optimizing the second path for a second sub-region of the range, to maximize the differential absorption by at least some of the wavelengths in the second sub-region. In the preferred embodiment a third path through the tissue is provided for, which path is optimized for a third sub-region of the range. With this arrangement, spectral variations which are the result of tissue differences (e.g., melanin and temperature) can be reduced. At least one of the paths represents a partial transmission path through the tissue. This partial transmission path may pass through the nail of a finger once and, preferably, twice. Also included are apparatus for: (1) reducing the arterial pulsations within the tissue; and (2) maximizing the blood content i the tissue.

  20. Analytical Chemistry Laboratory progress report for FY 1985

    SciTech Connect (OSTI)

    Green, D.W.; Heinrich, R.R.; Jensen, K.J.

    1985-12-01T23:59:59.000Z

    The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of technical support services to the scientific and engineering programs at ANL. In addition, ACL conducts a research program in analytical chemistry, works on instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems, from routine standard analyses to unique problems that require significant development of methods and techniques. The purpose of this report is to summarize the technical and administrative activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year 1985 (October 1984 through September 1985). This is the second annual report for the ACL. 4 figs., 1 tab.

  1. Predictive analytics http://www.medicalnews.md/predictive-analytics/[11/14/2012 9:51:43 AM

    E-Print Network [OSTI]

    Stanford, Kyle

    results that can be found all around us. Predictive analytics combines existing data from a variety] Predictive analytics Unique form of statistics uncovers vital data to advance the future of healthcare delivers well-timed buying suggestions? These are some of the intriguing applications that involve the use

  2. Analytical Chemistry Laboratory, progress report for FY 1993

    SciTech Connect (OSTI)

    Not Available

    1993-12-01T23:59:59.000Z

    The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1993 (October 1992 through September 1993). This annual report is the tenth for the ACL and describes continuing effort on projects, work on new projects, and contributions of the ACL staff to various programs at ANL. The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. The ACL also has research programs in analytical chemistry, conducts instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems. Some routine or standard analyses are done, but it is common for the Argonne programs to generate unique problems that require development or modification of methods and adaption of techniques to obtain useful analytical data. The ACL is administratively within the Chemical Technology Division (CMT), its principal ANL client, but provides technical support for many of the technical divisions and programs at ANL. The ACL has four technical groups--Chemical Analysis, Instrumental Analysis, Organic Analysis, and Environmental Analysis--which together include about 45 technical staff members. Talents and interests of staff members cross the group lines, as do many projects within the ACL.

  3. Data warehousing and on-line analytical processing (OLAP) are essential elements of decision support, which has

    E-Print Network [OSTI]

    Lakshmanan, Laks V.S.

    ; front end client tools for querying and data analysis; server extensions for efficient query processing analysis, risk analysis, credit card analysis, and fraud detection), transportation (for fleet management of decision support, which has increasingly become a focus of the database industry. Many commercial products

  4. analytical modeling method: Topics by E-print Network

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

    2006-11-21 396 Coupled thermodynamic-dynamic semi-analytical model of Free Piston Stirling engines CERN Preprints Summary: The study of free piston Stirling engine (FPSE)...

  5. Crystal ball planning for analytics implementation in Singapore

    E-Print Network [OSTI]

    Fang, Cong, Ph.D. California State University, Los Angeles

    2014-01-01T23:59:59.000Z

    Amgen is building a new drug substance manufacturing site in Singapore (ASM). This project identified and mitigated the risks associated with implementing analytical technologies to facilitate the design and implementation ...

  6. advanced analytical tools: Topics by E-print Network

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

    13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 21 Kilohertz microfluidics as an analytical tool for determining dynamic characteristics of microfluidic...

  7. Geothermal: Sponsored by OSTI -- A closed-form analytical solution...

    Office of Scientific and Technical Information (OSTI)

    A closed-form analytical solution for thermal single-well injection withdrawal tests Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search...

  8. FIELDS WITH ANALYTIC STRUCTURE 1. Introduction We begin ...

    E-Print Network [OSTI]

    2008-04-17T23:59:59.000Z

    and the corresponding analytic functions are the strictly convergent power series ... nonstandard models of the theory of Qp in the language with symbols for the ...... the verification that Sover is a (strong) separated Weierstrass system to the...

  9. Data Analytics Methods in Wind Turbine Design and Operations

    E-Print Network [OSTI]

    Lee, Giwhyun

    2013-05-22T23:59:59.000Z

    This dissertation develops sophisticated data analytic methods to analyze structural loads on, and power generation of, wind turbines. Wind turbines, which convert the kinetic energy in wind into electrical power, are operated within stochastic...

  10. Analytical modeling of contaminant transport and horizontal well hydraulics

    E-Print Network [OSTI]

    Park, Eungyu

    2004-09-30T23:59:59.000Z

    transport from one-, two-, and three-dimensional finite sources in a finite-thickness aquifer using Green's function method. A library of unpublished analytical solutions with different finite source geometry is provided. A graphically integrated software...

  11. amplitudes full analytic: Topics by E-print Network

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

    Full analytic results CERN Preprints Summary: We consider one-loop amplitudes of a Higgs boson coupled to gluons in the limit of a large top quark mass. We treat the Higgs as the...

  12. analytic technologies pat: Topics by E-print Network

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

    M.Sc., Yvan Bdard, Ph 30 HadoopDB: An Architectural Hybrid of MapReduce and DBMS Technologies for Analytical Workloads CiteSeer Summary: The production environment for...

  13. analytical technology pat: Topics by E-print Network

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

    M.Sc., Yvan Bdard, Ph 30 HadoopDB: An Architectural Hybrid of MapReduce and DBMS Technologies for Analytical Workloads CiteSeer Summary: The production environment for...

  14. False Vacuum Transitions - Analytical Solutions and Decay Rate Values

    E-Print Network [OSTI]

    Correa, R A C; da Rocha, Roldao

    2015-01-01T23:59:59.000Z

    In this work we show a class of oscillating configurations for the evolution of the domain walls in Euclidean space. The solutions are obtained analytically. We also find the decay rate of the false vacuum.

  15. False Vacuum Transitions - Analytical Solutions and Decay Rate Values

    E-Print Network [OSTI]

    R. A. C. Correa; P. H. R. S. Moraes; Roldao da Rocha

    2015-04-28T23:59:59.000Z

    In this work we show a class of oscillating configurations for the evolution of the domain walls in Euclidean space. The solutions are obtained analytically. We also find the decay rate of the false vacuum.

  16. Data Analytics Methods in Wind Turbine Design and Operations

    E-Print Network [OSTI]

    Lee, Giwhyun

    2013-05-22T23:59:59.000Z

    This dissertation develops sophisticated data analytic methods to analyze structural loads on, and power generation of, wind turbines. Wind turbines, which convert the kinetic energy in wind into electrical power, are operated within stochastic...

  17. SociAL Sensor Analytics: Measuring Phenomenology at Scale

    SciTech Connect (OSTI)

    Corley, Courtney D.; Dowling, Chase P.; Rose, Stuart J.; McKenzie, Taylor K.

    2013-06-04T23:59:59.000Z

    The objective of this paper is to present a system for interrogating immense social media streams through analytical methodologies that characterize topics and events critical to tactical and strategic planning. First, we propose a conceptual framework for interpreting social media as a sensor network. Time-series models and topic clustering algorithms are used to implement this concept into a functioning analytical system. Next, we address two scientific challenges: 1) to understand, quantify, and baseline phenomenology of social media at scale, and 2) to develop analytical methodologies to detect and investigate events of interest. This paper then documents computational methods and reports experimental findings that address these challenges. Ultimately, the ability to process billions of social media posts per week over a period of years enables the identification of patterns and predictors of tactical and strategic concerns at an unprecedented rate through SociAL Sensor Analytics (SALSA).

  18. Analytic behavior of the QED polarizability function at finite temperature

    E-Print Network [OSTI]

    A. Bernal; A. Perez

    2011-01-20T23:59:59.000Z

    We revisit the analytical properties of the static quasi-photon polarizability function for an electron gas at finite temperature, in connection with the existence of Friedel oscillations in the potential created by an impurity. In contrast with the zero temperature case, where the polarizability is an analytical function, except for the two branch cuts which are responsible for Friedel oscillations, at finite temperature the corresponding function is not analytical, in spite of becoming continuous everywhere on the complex plane. This effect produces, as a result, the survival of the oscillatory behavior of the potential. We calculate the potential at large distances, and relate the calculation to the non-analytical properties of the polarizability.

  19. analytical laboratory rtal: Topics by E-print Network

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

    Ecology Websites Summary: 12;12;A BRIEF HISTORY THE ANALYTICAL CHEMISTRY DIVISION OF OAK RIDGE NATIONAL LABORATORY 1950 hiembers of the Chemistry Division R-on: J. A. Swartout...

  20. analytical chemistry laboratory: Topics by E-print Network

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

    Websites Summary: 12;12;A BRIEF HISTORY THE ANALYTICAL CHEMISTRY DIVISION OF OAK RIDGE NATIONAL LABORATORY 1950 hiembers of the Chemistry Division R-on: J. A. Swartout In...

  1. Light trapping limits in plasmonic solar cells: an analytical investigation

    E-Print Network [OSTI]

    Sheng, Xing

    We analytically investigate the light trapping performance in plasmonic solar cells with Si/metallic structures. We consider absorption enhancements for surface plasmon polaritons (SPPs) at planar Si/metal interfaces and ...

  2. Analytical Chemistry Laboratory Progress Report for FY 1994

    SciTech Connect (OSTI)

    Green, D.W.; Boparai, A.S.; Bowers, D.L. [and others

    1994-12-01T23:59:59.000Z

    The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1994 (October 1993 through September 1994). This annual report is the eleventh for the ACL and describes continuing effort on projects, work on new projects, and contributions of the ACL staff to various programs at ANL. The Analytical Chemistry Laboratory is a full-cost-recovery service center, with the primary mission of providing a broad range of analytical chemistry support services to the scientific and engineering programs at ANL. The ACL also has a research program in analytical chemistry, conducts instrumental and methods development, and provides analytical services for governmental, educational, and industrial organizations. The ACL handles a wide range of analytical problems. Some routine or standard analyses are done, but it is common for the Argonne programs to generate unique problems that require significant development of methods and adaption of techniques to obtain useful analytical data. The ACL has four technical groups -- Chemical Analysis, Instrumental Analysis, Organic Analysis, and Environmental Analysis -- which together include about 45 technical staff members. Talents and interests of staff members cross the group lines, as do many projects within the ACL. The Chemical Analysis Group uses wet- chemical and instrumental methods for elemental, compositional, and isotopic determinations in solid, liquid, and gaseous samples and provides specialized analytical services. Major instruments in this group include an ion chromatograph (IC), an inductively coupled plasma/atomic emission spectrometer (ICP/AES), spectrophotometers, mass spectrometers (including gas-analysis and thermal-ionization mass spectrometers), emission spectrographs, autotitrators, sulfur and carbon determinators, and a kinetic phosphorescence uranium analyzer.

  3. Ultrasonic analyte concentration and application in flow cytometry

    DOE Patents [OSTI]

    Kaduchak, Gregory; Goddard, Greg; Salzman, Gary; Sinha, Dipen; Martin, John C.; Kwiatkowski, Christopher; Graves, Steven

    2014-07-22T23:59:59.000Z

    The present invention includes an apparatus and corresponding method for concentrating analytes within a fluid flowing through a tube using acoustic radiation pressure. The apparatus includes a function generator that outputs a radio frequency electrical signal to a transducer that transforms the radio frequency electric signal to an acoustic signal and couples the acoustic signal to the tube. The acoustic signal is converted within the tube to acoustic pressure that concentrates the analytes within the fluid.

  4. Ultrasonic analyte concentration and application in flow cytometry

    DOE Patents [OSTI]

    Kaduchak, Gregory (Los Alamos, NM); Goddard, Greg (Los Alamos, NM); Salzman, Gary (White Rock, NM); Sinha, Dipen (Los Alamos, NM); Martin, John C. (Los Alamos, NM); Kwiatkowski, Christopher (Los Alamos, NM); Graves, Steven (San Juan Pueblo, NM)

    2008-03-11T23:59:59.000Z

    The present invention includes an apparatus and corresponding method for concentrating analytes within a fluid flowing through a tube using acoustic radiation pressure. The apparatus includes a function generator that outputs a radio frequency electrical signal to a transducer that transforms the radio frequency electric signal to an acoustic signal and couples the acoustic signal to the tube. The acoustic signal is converted within the tube to acoustic pressure that concentrates the analytes within the fluid.

  5. Analytical Chemistry Laboratory. Progress report for FY 1996

    SciTech Connect (OSTI)

    Green, D.W.; Boparai, A.S.; Bowers, D.L.

    1996-12-01T23:59:59.000Z

    The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1996. This annual report is the thirteenth for the ACL. It describes effort on continuing and new projects and contributions of the ACL staff to various programs at ANL. The ACL operates in the ANL system as a full-cost-recovery service center, but has a mission that includes a complementary research and development component: The Analytical Chemistry Laboratory will provide high-quality, cost-effective chemical analysis and related technical support to solve research problems of our clients -- Argonne National Laboratory, the Department of Energy, and others -- and will conduct world-class research and development in analytical chemistry and its applications. Because of the diversity of research and development work at ANL, the ACL handles a wide range of analytical chemistry problems. Some routine or standard analyses are done, but the ACL usually works with commercial laboratories if our clients require high-volume, production-type analyses. It is common for ANL programs to generate unique problems that require significant development of methods and adaption of techniques to obtain useful analytical data. Thus, much of the support work done by the ACL is very similar to our applied analytical chemistry research.

  6. Statistically qualified neuro-analytic failure detection method and system

    DOE Patents [OSTI]

    Vilim, Richard B. (Aurora, IL); Garcia, Humberto E. (Idaho Falls, ID); Chen, Frederick W. (Naperville, IL)

    2002-03-02T23:59:59.000Z

    An apparatus and method for monitoring a process involve development and application of a statistically qualified neuro-analytic (SQNA) model to accurately and reliably identify process change. The development of the SQNA model is accomplished in two stages: deterministic model adaption and stochastic model modification of the deterministic model adaptation. Deterministic model adaption involves formulating an analytic model of the process representing known process characteristics, augmenting the analytic model with a neural network that captures unknown process characteristics, and training the resulting neuro-analytic model by adjusting the neural network weights according to a unique scaled equation error minimization technique. Stochastic model modification involves qualifying any remaining uncertainty in the trained neuro-analytic model by formulating a likelihood function, given an error propagation equation, for computing the probability that the neuro-analytic model generates measured process output. Preferably, the developed SQNA model is validated using known sequential probability ratio tests and applied to the process as an on-line monitoring system. Illustrative of the method and apparatus, the method is applied to a peristaltic pump system.

  7. Analytical modeling of pulse-pileup distortion using the true pulse shape; applications to Fermi-GBM

    E-Print Network [OSTI]

    Vandiver Chaplin; Narayana Bhat; Michael Briggs; Valerie Connaughton

    2013-04-29T23:59:59.000Z

    Pulse-pileup affects most photon counting systems and occurs when photon detections occur faster than the detector's registration and recovery time. At high input rates, shaped pulses interfere and the source spectrum, as well as intensity information, get distorted. For instruments using bipolar pulse shaping there are two aspects to consider: `peak' and `tail' pileup effects, which raise and lower the measured energy, respectively. Peak effects have been extensively modeled in the past. Tail effects have garnered less attention due to the increased complexity: bipolar tails mean the tail pulse-height measurement depends on events in more than one time interval. We leverage previous work to derive an accurate, semi-analytical prediction for peak and tail pileup, up to high orders. We use the true pulse shape from the detectors of the Fermi Gamma-ray Burst Monitor. The measured spectrum is calculated by writing exposure time as a state-space expansion of overlapping pileup states and is valid up to very high rates. This expansion models losses due to fixed and extendable deadtime by averaging overlap configurations. Additionally, the model correctly predicts energy-dependent losses due to tail subtraction (sub-threshold) effects. We discuss pileup losses in terms of the true rate of photon detections versus the recorded count rate.

  8. Toxicologic evaluation of analytes from Tank 241-C-103

    SciTech Connect (OSTI)

    Mahlum, D.D.; Young, J.Y.; Weller, R.E.

    1994-11-01T23:59:59.000Z

    Westinghouse Hanford Company requested PNL to assemble a toxicology review panel (TRP) to evaluate analytical data compiled by WHC, and provide advice concerning potential health effects associated with exposure to tank-vapor constituents. The team`s objectives would be to (1) review procedures used for sampling vapors from tanks, (2) identify constituents in tank-vapor samples that could be related to symptoms reported by workers, (3) evaluate the toxicological implications of those constituents by comparison to establish toxicological databases, (4) provide advice for additional analytical efforts, and (5) support other activities as requested by WHC. The TRP represents a wide range of expertise, including toxicology, industrial hygiene, and occupational medicine. The TRP prepared a list of target analytes that chemists at the Oregon Graduate Institute/Sandia (OGI), Oak Ridge National Laboratory (ORNL), and PNL used to establish validated methods for quantitative analysis of head-space vapors from Tank 241-C-103. this list was used by the analytical laboratories to develop appropriate analytical methods for samples from Tank 241-C-103. Target compounds on the list included acetone, acetonitrile, ammonia, benzene, 1, 3-butadiene, butanal, n-butanol, hexane, 2-hexanone, methylene chloride, nitric oxide, nitrogen dioxide, nitrous oxide, dodecane, tridecane, propane nitrile, sulfur oxide, tributyl phosphate, and vinylidene chloride. The TRP considered constituent concentrations, current exposure limits, reliability of data relative to toxicity, consistency of the analytical data, and whether the material was carcinogenic or teratogenic. A final consideration in the analyte selection process was to include representative chemicals for each class of compounds found.

  9. Hanford performance evaluation program for Hanford site analytical services

    SciTech Connect (OSTI)

    Markel, L.P.

    1995-09-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) Order 5700.6C, Quality Assurance, and Title 10 of the Code of Federal Regulations, Part 830.120, Quality Assurance Requirements, states that it is the responsibility of DOE contractors to ensure that ``quality is achieved and maintained by those who have been assigned the responsibility for performing the work.`` Hanford Analytical Services Quality Assurance Plan (HASQAP) is designed to meet the needs of the Richland Operations Office (RL) for maintaining a consistent level of quality for the analytical chemistry services provided by contractor and commmercial analytical laboratory operations. Therefore, services supporting Hanford environmental monitoring, environmental restoration, and waste management analytical services shall meet appropriate quality standards. This performance evaluation program will monitor the quality standards of all analytical laboratories supporting the Hanforad Site including on-site and off-site laboratories. The monitoring and evaluation of laboratory performance can be completed by the use of several tools. This program will discuss the tools that will be utilized for laboratory performance evaluations. Revision 0 will primarily focus on presently available programs using readily available performance evaluation materials provided by DOE, EPA or commercial sources. Discussion of project specific PE materials and evaluations will be described in section 9.0 and Appendix A.

  10. Infrared freezing of Euclidean observables and analyticity in perturbative QCD

    E-Print Network [OSTI]

    Irinel Caprini; Jan Fischer

    2006-12-21T23:59:59.000Z

    The renormalization-group improved finite order expansions of the QCD observables have an unphysical singularity in the Euclidean region, due to the Landau pole of the running coupling. Recently it was claimed that, by using a modified Borel representation, the leading one-chain term in a skeleton expansion of the Euclidean QCD observables is finite and continuous across the Landau pole, and then exhibits an infrared freezing behaviour, vanishing at $Q^2=0$. In the present paper we show, using for illustration the Adler-${\\cal D}$ function, that the above Borel prescription violates the causality properties expressed by energy-plane analyticity: the function ${\\cal D}(Q^2)$ thus defined is the boundary value of a piecewise analytic function in the complex plane, instead of being a standard analytic function. So, the price to be paid for the infrared freezing of Euclidean QCD observables is the loss of a fundamental property of local quantum field theory.

  11. Black Hole Collisions, Analytic Continuation, and Cosmic Censorship

    E-Print Network [OSTI]

    Dieter R. Brill

    1995-03-27T23:59:59.000Z

    Exact solutions of the Einstein-Maxwell equations that describe moving black holes in a cosmological setting are discussed with the aim of discovering the global structure and testing cosmic censorship. Continuation beyond the horizons present in these solutions is necessary in order to identify the global structure. Therefore the possibilities and methods of analytic extension of geometries are briefly reviewed. The global structure of the Reissner-Nordstr\\"om-de Sitter geometry is found by these methods. When several black holes are present, the exact solution is no longer everywhere analytic, but less smooth extensions satisfying the Einstein equations everywhere are possible. Some of these provide counterexamples to cosmic censorship.

  12. Analytical effective tensor for flow-through composites

    DOE Patents [OSTI]

    Sviercoski, Rosangela De Fatima (Los Alamos, NM)

    2012-06-19T23:59:59.000Z

    A machine, method and computer-usable medium for modeling an average flow of a substance through a composite material. Such a modeling includes an analytical calculation of an effective tensor K.sup.a suitable for use with a variety of media. The analytical calculation corresponds to an approximation to the tensor K, and follows by first computing the diagonal values, and then identifying symmetries of the heterogeneity distribution. Additional calculations include determining the center of mass of the heterogeneous cell and its angle according to a defined Cartesian system, and utilizing this angle into a rotation formula to compute the off-diagonal values and determining its sign.

  13. Expanding the Frontiers of Visual Analytics and Visualization

    SciTech Connect (OSTI)

    Dill, John; Earnshaw, Rae; Kasik, David; Vince, John; Wong, Pak C.

    2012-05-31T23:59:59.000Z

    Expanding the Frontiers of Visual Analytics and Visualization contains international contributions by leading researchers from within the field. Dedicated to the memory of Jim Thomas, the book begins with the dynamics of evolving a vision based on some of the principles that Jim and colleagues established and in which Jims leadership was evident. This is followed by chapters in the areas of visual analytics, visualization, interaction, modelling, architecture, and virtual reality, before concluding with the key area of technology transfer to industry.

  14. An Analytic Analysis of Phase Transitions in Holographic Superconductors

    E-Print Network [OSTI]

    Chiang-Mei Chen; Ming-Fan Wu

    2011-09-02T23:59:59.000Z

    Using a simple analytic approach, we study the universal properties of second-order phase transition in holographic superconductor models. We explore a general model in arbitrary dimensions in which the condensation occurs via the St\\"uckelberg spontaneous symmetry breaking mechanism. All the possible second-order phase transitions and their universal characteristics can be identified analytically. The relationship between the critical temperature and charge density is generic, and the critical exponents can be greater than the typical mean field value 1/2. In addition, the related numerical factors can also be computed qualitatively.

  15. Innovative technology summary report: Road Transportable Analytical Laboratory (RTAL)

    SciTech Connect (OSTI)

    NONE

    1998-10-01T23:59:59.000Z

    The Road Transportable Analytical Laboratory (RTAL) has been used in support of US Department of Energy (DOE) site and waste characterization and remediation planning at Fernald Environmental Management Project (FEMP) and is being considered for implementation at other DOE sites, including the Paducah Gaseous Diffusion Plant. The RTAL laboratory system consists of a set of individual laboratory modules deployable independently or as an interconnected group to meet each DOE site`s specific analysis needs. The prototype RTAL, deployed at FEMP Operable Unit 1 Waste Pits, has been designed to be synergistic with existing analytical laboratory capabilities, thereby reducing the occurrence of unplanned rush samples that are disruptive to efficient laboratory operations.

  16. Evaluating Visual Analytics at the 2007 VAST Symposium Contest

    SciTech Connect (OSTI)

    Plaisant, Catherine; Grinstein, Georges; Scholtz, Jean; Whiting, Mark A.; O'Connell, Theresa; Laskowski, Sharon; Chien, Lynn; Tat, Annie; Wright, William; Gorg, Carsten; Lui, Zhicheng; Parekh, Neel; Singhal, Kanupriya; Stasko, John T.

    2008-03-01T23:59:59.000Z

    The second Visual Analytics Science and Technology (VAST) contest was held in conjunction with the 2007 IEEE VAST Symposium. A synthetic data set was created containing a known scenario with embedded threats, therefore providing ground truth. Participants used visual analytic tools to explore the heterogeneous data collection and find the evidence of illegal and possible terrorist activities in the data. We describe the contest and the evaluation methodology, then provide details on the results and the two winning entries. Lessons learned are reported from different points of view: contest committee, participants, judges, stake holders and other researchers.

  17. Analytical, experimental, and Monte Carlo system response matrix for pinhole SPECT reconstruction

    SciTech Connect (OSTI)

    Aguiar, Pablo, E-mail: pablo.aguiar.fernandez@sergas.es [Fundacin Ramn Domnguez, Medicina Nuclear, CHUS, Spain and Grupo de Imaxe Molecular, IDIS, Santiago de Compostela 15706 (Spain)] [Fundacin Ramn Domnguez, Medicina Nuclear, CHUS, Spain and Grupo de Imaxe Molecular, IDIS, Santiago de Compostela 15706 (Spain); Pino, Francisco [Unitat de Biofsica, Facultat de Medicina, Universitat de Barcelona, Spain and Servei de Fsica Mdica i Protecci Radiolgica, Institut Catal d'Oncologia, Barcelona 08036 (Spain)] [Unitat de Biofsica, Facultat de Medicina, Universitat de Barcelona, Spain and Servei de Fsica Mdica i Protecci Radiolgica, Institut Catal d'Oncologia, Barcelona 08036 (Spain); Silva-Rodrguez, Jess [Fundacin Ramn Domnguez, Medicina Nuclear, CHUS, Santiago de Compostela 15706 (Spain)] [Fundacin Ramn Domnguez, Medicina Nuclear, CHUS, Santiago de Compostela 15706 (Spain); Pava, Javier [Servei de Medicina Nuclear, Hospital Clnic, Barcelona (Spain) [Servei de Medicina Nuclear, Hospital Clnic, Barcelona (Spain); Institut d'Investigacions Biomdiques August P i Sunyer (IDIBAPS) (Spain); CIBER en Bioingeniera, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona 08036 (Spain); Ros, Domnec [Unitat de Biofsica, Facultat de Medicina, Casanova 143 (Spain) [Unitat de Biofsica, Facultat de Medicina, Casanova 143 (Spain); Institut d'Investigacions Biomdiques August P i Sunyer (IDIBAPS) (Spain); CIBER en Bioingeniera, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona 08036 (Spain); Ruibal, lvaro [Servicio Medicina Nuclear, CHUS (Spain) [Servicio Medicina Nuclear, CHUS (Spain); Grupo de Imaxe Molecular, Facultade de Medicina (USC), IDIS, Santiago de Compostela 15706 (Spain); Fundacin Tejerina, Madrid (Spain)] [Spain; and others

    2014-03-15T23:59:59.000Z

    Purpose: To assess the performance of two approaches to the system response matrix (SRM) calculation in pinhole single photon emission computed tomography (SPECT) reconstruction. Methods: Evaluation was performed using experimental data from a low magnification pinhole SPECT system that consisted of a rotating flat detector with a monolithic scintillator crystal. The SRM was computed following two approaches, which were based on Monte Carlo simulations (MC-SRM) and analytical techniques in combination with an experimental characterization (AE-SRM). The spatial response of the system, obtained by using the two approaches, was compared with experimental data. The effect of the MC-SRM and AE-SRM approaches on the reconstructed image was assessed in terms of image contrast, signal-to-noise ratio, image quality, and spatial resolution. To this end, acquisitions were carried out using a hot cylinder phantom (consisting of five fillable rods with diameters of 5, 4, 3, 2, and 1?mm and a uniform cylindrical chamber) and a custom-made Derenzo phantom, with center-to-center distances between adjacent rods of 1.5, 2.0, and 3.0?mm. Results: Good agreement was found for the spatial response of the system between measured data and results derived from MC-SRM and AE-SRM. Only minor differences for point sources at distances smaller than the radius of rotation and large incidence angles were found. Assessment of the effect on the reconstructed image showed a similar contrast for both approaches, with values higher than 0.9 for rod diameters greater than 1?mm and higher than 0.8 for rod diameter of 1?mm. The comparison in terms of image quality showed that all rods in the different sections of a custom-made Derenzo phantom could be distinguished. The spatial resolution (FWHM) was 0.7?mm at iteration 100 using both approaches. The SNR was lower for reconstructed images using MC-SRM than for those reconstructed using AE-SRM, indicating that AE-SRM deals better with the projection noise than MC-SRM. Conclusions: The authors' findings show that both approaches provide good solutions to the problem of calculating the SRM in pinhole SPECT reconstruction. The AE-SRM was faster to create and handle the projection noise better than MC-SRM. Nevertheless, the AE-SRM required a tedious experimental characterization of the intrinsic detector response. Creation of the MC-SRM required longer computation time and handled the projection noise worse than the AE-SRM. Nevertheless, the MC-SRM inherently incorporates extensive modeling of the system and therefore experimental characterization was not required.

  18. Analytical Modeling of Cake Filtration Scott A. Wells

    E-Print Network [OSTI]

    Wells, Scott A.

    properties of kaolin suspensions in distilled water. Constitutive properties were determined by experiments to the analytical model predictions assuming that porosity and pressure were functions only of fractional cake that whenever the distribution of porosity was only a function of fractional cake position, #12;2 z/L, where z

  19. ELECTROMOTION 2009 3D Analytical Calculation of Forces between

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Co or NdFeB, the designers can use magnets owning a really rigid magnetization. They are the magnets whichELECTROMOTION 2009 1 3D Analytical Calculation of Forces between Linear Halbach-Type Permanent Magnet Arrays H. Allag1,2 , J-P. Yonnet1 and M. E. H. Latreche2 1- Laboratoire de Génie Electrique de

  20. Decision Analytic Modelling in the Economic Evaluation of

    E-Print Network [OSTI]

    Oakley, Jeremy

    Decision Analytic Modelling in the Economic Evaluation of Health Technologies A Consensus Statement when used for the economic evaluation of health technologies; there is limited guidanceforgoodmodelling developed in the context of broader healthcare and economic evaluations, for which ex- plicit guidelines

  1. analytic energy level: Topics by E-print Network

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

    analytic energy level First Page Previous Page 1 2 3 4 5 6 7 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 Relativistic Coulomb Problem:...

  2. Experimental and Analytical Reexamination of Classic Concrete Beam Tests

    E-Print Network [OSTI]

    Vecchio, Frank J.

    Experimental and Analytical Reexamination of Classic Concrete Beam Tests F. J. Vecchio1 and W. Shim CE Database subject headings: Beams; Concrete; Tests; Ductility; Finite elements; Models; Shear paper describing the testing of a series of 12 reinforced concrete beams Bresler and Scordelis 1963

  3. Breakdown of analyticity: From rigorous results to numerics

    E-Print Network [OSTI]

    Doedel, Eusebius

    work with Rafael de la Llave #12;Computing the breakdown Quasi-Periodic Solutions Outline QuasiBreakdown of analyticity: From rigorous results to numerics Renato Calleja Applied Mathematics-Periodic Solutions Twist Maps Models arising in Statistical Mechanics Computation of the Breakdown Small divisors

  4. February 2013 Siemens Princeton NJ Pascal Hitzler Semantic Data Analytics

    E-Print Network [OSTI]

    Hitzler, Pascal

    February 2013 Siemens Princeton NJ Pascal Hitzler Semantic Data Analytics The key://www.pascal-hitzler.de/ #12;February 2013 Siemens Princeton NJ Pascal Hitzler 2 Semantic Web journal EiCs: Pascal://www.semantic-web-journal.net/ #12;February 2013 Siemens Princeton NJ Pascal Hitzler 3 Textbook Pascal Hitzler, Markus Krtzsch

  5. A Visual Analytics Approach for Correlation, Classification, and

    E-Print Network [OSTI]

    Swan II, J. Edward

    are combined into a parallel coordinates based framework for enhanced multivariate visual analysis. Figure 1A Visual Analytics Approach for Correlation, Classification, and Regression Analysis Chad A. Steed Mississippi State University 1021 Balch Blvd. Stennis Space Center, MS 39529 USA T.J. Jankun-Kelly tjk

  6. A Visual Analytics Approach for Correlation, Classification, and Regression Analysis

    E-Print Network [OSTI]

    Swan II, J. Edward

    multivariate visual analysis. The current work features an expanded version of MDX that builds on recentA Visual Analytics Approach for Correlation, Classification, and Regression Analysis Chad A. Steeda, Mississippi State University, Stennis Space Center, MS, 39529; cDepartment of Computer Science and Engineering

  7. Analytical Representation of the Longitudinal Hadronic Shower Development

    E-Print Network [OSTI]

    Y. A. Kulchitsky; V. B. Vinogradov

    1999-03-12T23:59:59.000Z

    The analytical representation of the longitudinal hadronic shower development from the face of a calorimeter is presented and compared with experimental data. The suggested formula is particularly useful at designing, testing and calibration of huge calorimeter complex like in ATLAS at LHC.

  8. Analytical representation of the longitudinal hadronic shower development

    E-Print Network [OSTI]

    Kulchitskii, Yu A

    1998-01-01T23:59:59.000Z

    The analytical representation of the longitudinal hadronic shower development from the face of a calorimeter is presented and compared with experimental data. The suggested formula is particularly useful at designing, testing and calibration of huge calorimeter complex like in ATLAS at LHC.

  9. advanced nuclear analytical: Topics by E-print Network

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

    nuclear analytical First Page Previous Page 1 2 3 4 5 6 7 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 Advances in Undergraduate Control...

  10. Analytic properties of insulating solution of half-filled Hubbard

    E-Print Network [OSTI]

    Freericks, Jim

    --= Analytic continuation to real frequencies gives (see Kajuter et al, PRB 53, 1996) ++ ++++ -- + +--- -- = 0 (see Rozenberg et al., PRB 49, 1994), if we consider Bethe lattice of same bandwidth Solution al., PRB 48, 1993) The Bethe and the hypercubic lattice of same bandwidth have same for same

  11. 100-F Target Analyte List Development for Soil

    SciTech Connect (OSTI)

    Ovink, R.

    2012-09-18T23:59:59.000Z

    This report documents the process used to identify source area target analytes in support of the 100-F Area remedial investigation/feasibility study (RI/FS) addendum to the Integrated 100 Area Remedial Investigation/Feasibility Study Work Plan (DOE/RL-2008-46, Rev. 0).

  12. Analytic Results for Higgs Production in Bottom Fusion

    E-Print Network [OSTI]

    Kemal J. Ozeren

    2010-10-14T23:59:59.000Z

    We evaluate analytically the cross section for Higgs production plus one jet through bottom quark fusion. By considering the small pT limit we derive expressions for the resummation coefficients governing the structure of large logarithms, and compare these expressions with those available in the literature.

  13. Analytic study on backreacting holographic superconductors with dark matter sector

    E-Print Network [OSTI]

    Lukasz Nakonieczny; Marek Rogatko

    2014-11-04T23:59:59.000Z

    The variational method for Sturm-Liouville eigenvalue problem was employed to study analytically properties of the holographic superconductor with dark matter sector, in which a coupling between Maxwell field and another U(1)-gauge field was considered. The backreaction of the dark matter sector on gravitational background in question was also examined.

  14. An analytic description of thick-wall bubbles

    SciTech Connect (OSTI)

    Hong, Jooyoo

    1992-08-01T23:59:59.000Z

    A new approximation scheme to the false-vacuum decay is suggested. In this scheme the bounce solutions can be obtained in an explicit and analytic way even for thick-wall bubbles. The result is compared with Coleman`s thin-wall description, which shows that is nicely comprises the result of the latter prescription. Some applications are also discussed.

  15. CLEAN ENERGY TECHNOLOGY BUYDOWNS: ECONOMIC THEORY, ANALYTIC TOOLS, AND

    E-Print Network [OSTI]

    Kammen, Daniel M.

    CLEAN ENERGY TECHNOLOGY BUYDOWNS: ECONOMIC THEORY, ANALYTIC TOOLS, AND THE PHOTOVOLTAICS CASE an economic rationale for subsidies to pull emerging clean energy technologies down their respective also occurs in other sectors, but the case for clean energy buydowns is unique. Governments wisely seek

  16. Analytical Chemistry Laboratory progress report for FY 1999

    SciTech Connect (OSTI)

    Green, D. W.; Boparai, A. S.; Bowers, D. L.; Graczyk, D. G.

    2000-06-15T23:59:59.000Z

    This report summarizes the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1999 (October 1998 through September 1999). This annual progress report, which is the sixteenth in this series for the ACL, describes effort on continuing projects, work on new projects, and contributions of the ACL staff to various programs at ANL.

  17. Analytical Chemistry Laboratory progress report for FY 1998.

    SciTech Connect (OSTI)

    Boparai, A. S.; Bowers, D. L.; Graczyk, D. G.; Green, D. W.; Lindahl, P. C.

    1999-03-29T23:59:59.000Z

    This report summarizes the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1998 (October 1997 through September 1998). This annual progress report, which is the fifteenth in this series for the ACL, describes effort on continuing projects, work on new projects, and contributions of the ACL staff to various programs at ANL.

  18. Groundwater Management Tools: Analytical Procedure and Case Studies

    E-Print Network [OSTI]

    Hickman, Mark

    Groundwater Management Tools: Analytical Procedure and Case Studies MAF Technical Paper No: 2003 and Forestry #12;i Contents Page Executive Summary v Introduction 1 Section A Groundwater Management: Best 2 2.2. Groundwater Budgets 2 2.3. Dynamic Storage 2 3. Scale of Abstraction Effects 3 4. Limitations

  19. analytic shielding optimization: Topics by E-print Network

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

    analytic shielding optimization First Page Previous Page 1 2 3 4 5 6 7 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 Information Management,...

  20. analytical methods biodiesel: Topics by E-print Network

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

    methods biodiesel First Page Previous Page 1 2 3 4 5 6 7 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 Biodiesel analytical development and...

  1. Analytical Methods for Measuring Mercury in Water, Sediment and Biota

    SciTech Connect (OSTI)

    Lasorsa, Brenda K.; Gill, Gary A.; Horvat, Milena

    2012-06-07T23:59:59.000Z

    Mercury (Hg) exists in a large number of physical and chemical forms with a wide range of properties. Conversion between these different forms provides the basis for mercury's complex distribution pattern in local and global cycles and for its biological enrichment and effects. Since the 1960s, the growing awareness of environmental mercury pollution has stimulated the development of more accurate, precise and efficient methods of determining mercury and its compounds in a wide variety of matrices. During recent years new analytical techniques have become available that have contributed significantly to the understanding of mercury chemistry in natural systems. In particular, these include ultra sensitive and specific analytical equipment and contamination-free methodologies. These improvements allow for the determination of total mercury as well as major species of mercury to be made in water, sediments and soils, and biota. Analytical methods are selected depending on the nature of the sample, the concentration levels of mercury, and what species or fraction is to be quantified. The terms speciation and fractionation in analytical chemistry were addressed by the International Union for Pure and Applied Chemistry (IUPAC) which published guidelines (Templeton et al., 2000) or recommendations for the definition of speciation analysis. "Speciation analysis is the analytical activity of identifying and/or measuring the quantities of one or more individual chemical species in a sample. The chemical species are specific forms of an element defined as to isotopic composition, electronic or oxidation state, and/or complex or molecular structure. The speciation of an element is the distribution of an element amongst defined chemical species in a system. In case that it is not possible to determine the concentration of the different individual chemical species that sum up the total concentration of an element in a given matrix, meaning it is impossible to determine the speciation, it is a useful practice to do fractionation instead. Fractionation is the process of classification of an analyte or a group of analytes from a certain sample according to physical (e.g. size, solubility) or chemical (e.g. bonding, reactivity) properties."

  2. Harmonic Functions are Real Analytic1 On this very short note we prove that harmonic functions are real analytic functions.

    E-Print Network [OSTI]

    Cabral, Marco

    Harmonic Functions are Real Analytic1 On this very short note we prove that harmonic functions prove Lemma 1 using the mean value property of harmonic functions, Green's theorem and the maximum principle. Lemma 1 (estimate on first derivative) Suppose w is harmonic in Rn , > 0, y and B

  3. Compressing bitmap indexes for faster search operations

    E-Print Network [OSTI]

    Wu, Kesheng; Otoo, Ekow J.; Shoshani, Arie

    2002-01-01T23:59:59.000Z

    study the effects of compression on bitmap indexes. The mainvalues. With- out compression, the bitmap index size wouldBBC WAH compression ratio (b) STAR bitmap indexes Figure 6.

  4. Making Fast Buffer Insertion Even Faster via

    E-Print Network [OSTI]

    Shi, Weiping "Peter"

    and A2 of the same branch, if Q(A1)Q(A2), C(A1)C(A2) and W(A1)W(A2), then A1 is redundant. Add a wire

  5. Solar Smarter Faster | Department of Energy

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

    of Energy Secretary Steven Chu announced on April 15th the selection of up to 112.5 million over five years for funding to support the development of advanced solar...

  6. Finding Acceptable Solutions Faster Using Inadmissible Information

    E-Print Network [OSTI]

    Ruml, Wheeler

    explicit estimation search (EES), a bounded suboptimal search algorithm that uses unbiased cost(n)+h(n) becomes f (n) = g(n)+wh(n). The weight, w, increases the importance of h (estimated cost of reaching attempt to find a solution quickly while guaranteeing that its cost does not exceed optimal by more than

  7. A semi-analytic model of magnetized liner inertial fusion

    E-Print Network [OSTI]

    McBride, Ryan D

    2015-01-01T23:59:59.000Z

    Presented is a semi-analytic model of magnetized liner inertial fusion (MagLIF). This model accounts for several key aspects of MagLIF, including: (1) preheat of the fuel (optionally via laser absorption); (2) pulsed-power-driven liner implosion; (3) liner compressibility with an analytic equation of state, artificial viscosity, internal magnetic pressure, and ohmic heating; (4) adiabatic compression and heating of the fuel; (5) radiative losses and fuel opacity; (6) magnetic flux compression with Nernst thermoelectric losses; (7) magnetized electron and ion thermal conduction losses; (8) end losses; (9) enhanced losses due to prescribed dopant concentrations and contaminant mix; (10) deuterium-deuterium and deuterium-tritium primary fusion reactions for arbitrary deuterium to tritium fuel ratios; and (11) magnetized alpha-particle fuel heating. We show that this simplified model, with its transparent and accessible physics, can be used to reproduce the general 1D behavior presented throughout the original Ma...

  8. Analytical calculation of neutral transport and its effect on ions

    SciTech Connect (OSTI)

    Calvin, M.D.; Hazeltine, R.D.; Valanju, P.M.; Solano, E.R. (Texas Univ., Austin, TX (USA). Inst. for Fusion Studies Texas Univ., Austin, TX (USA). Fusion Research Center)

    1991-06-01T23:59:59.000Z

    We analytically calculate the neutral particle distribution and its effects on ion heat and momentum transport in three-dimensional plasmas with arbitrary temperature and density profiles. A general variational principle taking advantage of the simplicity of the charge-exchange (CX) operator is derived to solve self-consistently the neutral-plasma interaction problem. To facilitate an extremal solution, we use the short CX mean-free-path ({lambda}{sub x}) ordering. Further, a non-variational, analytical solution providing a full set of transport coefficient is derived by making the realistic assumption that the product of the CX cross section with relative velocity is constant. The effects of neutrals on plasma energy loss and rotation appear in simple, sensible forms. We find that neutral viscosity dominates ion viscosity everywhere, and in the edge region by a large factor. 13 refs.

  9. A Simple Analytical Model for Gaps in Protoplanetary Disks

    E-Print Network [OSTI]

    Duffell, Paul C

    2015-01-01T23:59:59.000Z

    An analytical model is presented for calculating the surface density as a function of radius $\\Sigma(r)$ in protoplanetary disks in which a planet has opened a gap. This model is also applicable to circumbinary disks with extreme binary mass ratios. The gap profile can be solved for algebraically, without performing any numerical integrals. In contrast with previous one-dimensional gap models, this model correctly predicts that low-mass (sub-Jupiter) planets can open gaps in sufficiently low-viscosity disks, and it correctly recovers the power-law dependence of gap depth on planet-to-star mass ratio $q$, disk aspect ratio $h/r$, and dimensionless viscosity $\\alpha$ found in previous numerical studies. Analytical gap profiles are compared with numerical calculations over a range of parameter space in $q$, $h/r$, and $\\alpha$, demonstrating accurate reproduction of the "partial gap" regime, and general agreement over a wide range of parameter space.

  10. Analytic Perturbation Theory Model for QCD and Upsilon Decay

    E-Print Network [OSTI]

    Shirkov, D V

    2006-01-01T23:59:59.000Z

    An elegant and more precise formula for the 3-loop perturbative QCD coupling is discussed. It improves the common expression (e.g., canonized by PDG) in few GeV region. On its base, we propose simple analytic Model for ghost-free QCD running couplings and their effective powers within the Analytic Perturbation Theory, in both the space-like (Euclidean) and time-like (Minkowskian) regions, very accurate in the range above 1 GeV. Effectiveness of the new Model is illustrated by the example of Upsilon(1S) decay where the standard analysis gives $\\alpha_s(M_{\\Ups})=0.170\\pm 0.004$ value that is inconsistent with the bulk of data. Instead, we obtain $\\alpha_s(M_{\\Ups})=0.185\\pm 0.005$ that corresponds to $\\alpha_s(M_Z)=0.120\\pm 0.002 $ that is close to the world average.

  11. MAR flow mapping of Analytical Chemistry Operations (Preliminary Report)

    SciTech Connect (OSTI)

    Barr, Mary E. [Los Alamos National Laboratory; Farish, Thomas J. [Los Alamos National Laboratory

    2012-06-13T23:59:59.000Z

    The recently released Supplemental Directive, NA-1 SD 1027, updates the radionuclide threshold values in DOE-STD-1027-92 CN1 to reflect the use of modern parameters for dose conversion factors and breathing rates. The directive also corrects several arithmetic errors within the original standard. The result is a roughly four-fold increase in the amount of weapons-grade nuclear material allowed within a designated radiological facility. Radiological laboratory space within the recently constructed Radiological Laboratory Office and Utility Building (RLUOB) is slated to house selected analytical chemistry support activities in addition to small-scale actinide R&D activities. RLUOB is within the same facility operations envelope as TA-55. Consolidation of analytical chemistry activities to RLUOB and PF-4 offers operational efficiency improvements relative to the current pre-CMRR plans of dividing these activities between RLUOB, PF-4, and CMR. RLUOB is considered a Radiological Facility under STD-1027 - 'Facilities that do not meet or exceed Category 3 threshold criteria but still possess some amount of radioactive material may be considered Radiological Facilities.' The supplemental directive essentially increases the allowable material-at-risk (MAR) within radiological facilities from 8.4 g to 38.6 g for {sup 239}Pu. This increase in allowable MAR provides a unique opportunity to establish additional analytical chemistry support functions in RLUOB without negatively impacting either R&D activities or facility operations. Individual radiological facilities are tasked to determine MAR limits (up to the Category 3 thresholds) appropriate to their operational conditions. This study presents parameters that impact establishing MAR limits for RLUOB and an assessment of how various analytical chemistry support functions could operate within the established MAR limits.

  12. Analytical Study of Stress State in HTS Solenoids

    SciTech Connect (OSTI)

    Barzi, E.; Terzini, E.; /Fermilab

    2009-01-01T23:59:59.000Z

    A main challenge for high field solenoids made of in High Temperature Superconductor (HTS) is the large stress developed in the conductor. This is especially constraining for BSCCO, a brittle and strain sensitive ceramic material. To find parametric correlations useful in magnet design, analytical models can be used. A simple model is herein proposed to obtain the radial, azimuthal and axial stresses in a solenoid as a function of size, i.e. self-field, and of the engineering current density for a number of different constraint hypotheses. The analytical model was verified against finite element modeling (FEM) using the same hypotheses of infinite rigidity of the constraints and room temperature properties. FEM was used to separately evaluate the effect of thermal contractions at 4.2 K for BSCCO and YBCO coils. Even though the analytical model allows for a finite stiffness of the constraints, it was run using infinite stiffness. For this reason, FEM was again used to determine how much stresses change when considering an outer stainless steel skin with finite rigidity for both BSCCO and YBCO coils. For a better understanding of the actual loads that high field solenoids made of HTS will be subject to, we have started some analytical studies of stress state in solenoids for a number of constraint hypotheses. This will hopefully show what can be achieved with the present conductor in terms of self-field. The magnetic field (B) exerts a force F = B x J per unit volume. In superconducting magnets, where the field and current density (J) are both high, this force can be very large, and it is therefore important to calculate the stresses in the coil.

  13. Analytic technique measures aromatics in soil and water

    SciTech Connect (OSTI)

    Roy, K.A.

    1990-12-01T23:59:59.000Z

    This paper reports on a technique for detecting aromatic compounds in soil and water. The technique traces its roots to a chemical reaction discovered in 1877. The reaction is an organic synthesis process that has been harnessed for the production of high-octane gasoline, synthetic rubber, plastics and synthetic detergents. More than a century later the same chemistry is used as the basis for an analytical technique that quantifies contamination caused by products.

  14. Experimental and Analytical Research on Fracture Processes in ROck

    SciTech Connect (OSTI)

    Herbert H.. Einstein; Jay Miller; Bruno Silva

    2009-02-27T23:59:59.000Z

    Experimental studies on fracture propagation and coalescence were conducted which together with previous tests by this group on gypsum and marble, provide information on fracturing. Specifically, different fracture geometries wsere tested, which together with the different material properties will provide the basis for analytical/numerical modeling. INitial steps on the models were made as were initial investigations on the effect of pressurized water on fracture coalescence.

  15. Analytical chemistry laboratory. Progress report for FY 1997

    SciTech Connect (OSTI)

    Green, D.W.; Boparai, A.S.; Bowers, D.L. [and others

    1997-12-01T23:59:59.000Z

    The purpose of this report is to summarize the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 1997 (October 1996 through September 1997). This annual progress report is the fourteenth in this series for the ACL, and it describes continuing effort on projects, work on new projects, and contributions of the ACL staff to various programs at ANL.

  16. AIR: fused Analytical and Iterative Reconstruction method for computed tomography

    E-Print Network [OSTI]

    Yang, Liu; Qi, Sharon X; Gao, Hao

    2013-01-01T23:59:59.000Z

    Purpose: CT image reconstruction techniques have two major categories: analytical reconstruction (AR) method and iterative reconstruction (IR) method. AR reconstructs images through analytical formulas, such as filtered backprojection (FBP) in 2D and Feldkamp-Davis-Kress (FDK) method in 3D, which can be either mathematically exact or approximate. On the other hand, IR is often based on the discrete forward model of X-ray transform and formulated as a minimization problem with some appropriate image regularization method, so that the reconstructed image corresponds to the minimizer of the optimization problem. This work is to investigate the fused analytical and iterative reconstruction (AIR) method. Methods: Based on IR with L1-type image regularization, AIR is formulated with a AR-specific preconditioner in the data fidelity term, which results in the minimal change of the solution algorithm that replaces the adjoint X-ray transform by the filtered X-ray transform. As a proof-of-concept 2D example of AIR, FB...

  17. Focused analyte spray emission apparatus and process for mass spectrometric analysis

    DOE Patents [OSTI]

    Roach, Patrick J. (Kennewick, WA); Laskin, Julia (Richland, WA); Laskin, Alexander (Richland, WA)

    2012-01-17T23:59:59.000Z

    An apparatus and process are disclosed that deliver an analyte deposited on a substrate to a mass spectrometer that provides for trace analysis of complex organic analytes. Analytes are probed using a small droplet of solvent that is formed at the junction between two capillaries. A supply capillary maintains the droplet of solvent on the substrate; a collection capillary collects analyte desorbed from the surface and emits analyte ions as a focused spray to the inlet of a mass spectrometer for analysis. The invention enables efficient separation of desorption and ionization events, providing enhanced control over transport and ionization of the analyte.

  18. Waste minimization in analytical chemistry through innovative sample preparation techniques.

    SciTech Connect (OSTI)

    Smith, L. L.

    1998-05-28T23:59:59.000Z

    Because toxic solvents and other hazardous materials are commonly used in analytical methods, characterization procedures result in significant and costly amount of waste. We are developing alternative analytical methods in the radiological and organic areas to reduce the volume or form of the hazardous waste produced during sample analysis. For the radiological area, we have examined high-pressure, closed-vessel microwave digestion as a way to minimize waste from sample preparation operations. Heated solutions of strong mineral acids can be avoided for sample digestion by using the microwave approach. Because reactivity increases with pressure, we examined the use of less hazardous solvents to leach selected contaminants from soil for subsequent analysis. We demonstrated the feasibility of this approach by extracting plutonium from a NET reference material using citric and tartaric acids with microwave digestion. Analytical results were comparable to traditional digestion methods, while hazardous waste was reduced by a factor often. We also evaluated the suitability of other natural acids, determined the extraction performance on a wider variety of soil types, and examined the extraction efficiency of other contaminants. For the organic area, we examined ways to minimize the wastes associated with the determination of polychlorinated biphenyls (PCBs) in environmental samples. Conventional methods for analyzing semivolatile organic compounds are labor intensive and require copious amounts of hazardous solvents. For soil and sediment samples, we have a method to analyze PCBs that is based on microscale extraction using benign solvents (e.g., water or hexane). The extraction is performed at elevated temperatures in stainless steel cells containing the sample and solvent. Gas chromatography-mass spectrometry (GC/MS) was used to quantitate the analytes in the isolated extract. More recently, we developed a method utilizing solid-phase microextraction (SPME) for natural water samples. In this SPME technique, a fused-silica fiber coated with a polymeric film is exposed to the sample, extraction is allowed to take place, and then the analytes are thermally desorbed for GC analysis. Unlike liquid-liquid extraction or solid-phase extraction, SPME consumes all of the extracted sample in the analysis, significantly reducing the required sample volume.

  19. Querying graphs with data

    E-Print Network [OSTI]

    Vrgoc, Domagoj

    2014-06-27T23:59:59.000Z

    Graph data is becoming more and more pervasive. Indeed, services such as Social Networks or the Semantic Web can no longer rely on the traditional relational model, as its structure is somewhat too rigid for the applications ...

  20. Evaluation of analytical methods to interpret ground deformations due to soft ground tunneling

    E-Print Network [OSTI]

    Zymnis, Despina M

    2009-01-01T23:59:59.000Z

    An in depth study was undertaken to evaluate the effectiveness of analytical solutions in describing ground movements induced by soft ground tunneling. The analytical solutions that were examined consider both isotropic ...

  1. SINGULAR LEVI-FLAT REAL ANALYTIC HYPERSURFACES By DANIEL BURNS and XIANGHONG GONG

    E-Print Network [OSTI]

    Gong, Xianghong

    SINGULAR LEVI-FLAT REAL ANALYTIC HYPERSURFACES By DANIEL BURNS and XIANGHONG GONG Abstract. We #12;24 DANIEL BURNS AND XIANGHONG GONG Let M be a real analytic hypersurface defined by r = 0

  2. Computational Geosciences Improved Semi-Analytical Simulation of Geological Carbon Sequestration

    E-Print Network [OSTI]

    Bau, Domenico A.

    Computational Geosciences Improved Semi-Analytical Simulation of Geological Carbon Sequestration of Geological Carbon Sequestration Article Type: Manuscript Keywords: Semi-Analytical Modeling; Iterative Methods; Geological Carbon Sequestration; Injection Site Assessment Corresponding Author: Brent Cody

  3. Intensity-based Valuation of Residential Mortgages: an Analytically Tractable Model

    E-Print Network [OSTI]

    MacIver, Malcolm A.

    Intensity-based Valuation of Residential Mortgages: an Analytically Tractable Model Vyacheslav in Mathematical Finance Abstract This paper presents an analytically tractable valuation model for residential. Our solution method is based on explicitly constructing an eigenfunction expansion of the pricing

  4. ON ALMOST BLOW-ANALYTIC EQUIVALENCE GOULWEN FICHOU AND MASAHIRO SHIOTA

    E-Print Network [OSTI]

    Boyer, Edmond

    ON ALMOST BLOW-ANALYTIC EQUIVALENCE GOULWEN FICHOU AND MASAHIRO SHIOTA Abstract. We study the analytic equivalence of real analytic function germs after desin- gularization and state the cardinality of the classes under this equivalence relation. We consider also the Nash case, and compare these equivalences

  5. AN AGENT-CENTERED DECISION-ANALYTIC APPROACH TO CLIMATE CHANGE ADAPTATION

    E-Print Network [OSTI]

    Neff, Jason

    " of analytic tools centered on simulation and decision-analysis software, plus climate scenario generators. A decision-analytic framework combining traditional dimensions of risk and uncertainty with decision timeAN AGENT-CENTERED DECISION-ANALYTIC APPROACH TO CLIMATE CHANGE ADAPTATION We fashioned a "test bed

  6. EARN A MASTER'S DEGREE IN MANAGEMENT ANALYTICS WHILE YOU CONTINUE TO WORK

    E-Print Network [OSTI]

    Ellis, Randy

    EARN A MASTER'S DEGREE IN MANAGEMENT ANALYTICS WHILE YOU CONTINUE TO WORK A 10-month program to use it to create competitive advantage and generate value. Queen's Master of Management Analytics is not a requirement. MASTER OF MANAGEMENT ANALYTICS -- TORONTO #12;Today, with advancing technologies, most companies

  7. Exploring the Benefits and Uses of Web Analytics Tools for Non-Transactional Websites

    E-Print Network [OSTI]

    Cortes, Corinna

    Exploring the Benefits and Uses of Web Analytics Tools for Non-Transactional Websites Manya Sleeper web analytics tools to better understand their visitors for a range of purposes. However, there is lim- ited understanding of how owners of non-transactional web- sites use and benefit from web analytics

  8. The Analytical Labortory sample tracking and reporting system

    SciTech Connect (OSTI)

    Colvin, W.J.

    1996-06-01T23:59:59.000Z

    Regulatory and project requirements stipulate that samples submitted for chemical/physical analysis be owed throughout the analytical process. The Analytical Laboratory (AL) began tracking sample request information electronically using a simple dBASE{trademark} database in 1992. In mid 1993, AL chemists formed a committee to determine the software requirements for a formal sample tracking system. The requirements were outlined for a multi-user FoxPro{trademark} application which tracked sample logins, login templates, worksheets, and sample results and also provided standardized reporting capabilities. The Analytical Laboratory Sample Tracking and Reporting System became available to AL chemists and management in February, 1994. Chemists now had quick, easy access to organized and readable sample data. Up to date, on-line access to sample status information also benefitted AL management. The ability to closely monitor samples decreased sample process time. AL customers also benefitted by receiving standardized Final reports for their samples. Eventually, system performance began to deteriorate as the database grew and network traffic increased. To improve performance, ANL-W Information Services recommended upgrading the system. Upgrading to a fully relational, client/server Oracle{trademark} database accessed from a front-end application developed using Visual Basio{trademark}, one of the many Graphical User Interface (GUI) design tools available today, would improve performance times by greater than 50%. The move to Oracle would improve throughput times of transactions and employ a more efficient use of resources. Visual Basic front-and application development began in May, 1995. In October 1995, the first prototype of the Visual Basic application was made available for testing. AL users were pleased with the added ease-of-use the GUI interface provided. The production version is scheduled for release mid May, 1996.

  9. T.Rex Visual Analytics for Transactional Exploration

    ScienceCinema (OSTI)

    None

    2014-07-16T23:59:59.000Z

    T.Rex is PNNL's visual analytics tool that specializes in tabular structured data, like you might open with Excel. It's a client-server application, allowing the server to do a lot of the heavy lifting and the client to open spreadsheets with millions of rows. With datasets of that size, especially if you're unfamiliar with the contents, it's very hard to get a good grasp of what's in it using traditional tools. With T.Rex, the multiple views allow you to see categorical, temporal, numerical, relational, and summary data. The interactivity lets you look across your data and see how things relate to each other.

  10. Semantic Interaction for Visual Analytics: Toward Coupling Cognition and Computation

    SciTech Connect (OSTI)

    Endert, Alexander

    2014-07-01T23:59:59.000Z

    The dissertation discussed in this article [1] was written in the midst of an era of digitization. The world is becoming increasingly instrumented with sensors, monitoring, and other methods for generating data describing social, physical, and natural phenomena. Thus, data exist with the potential of being analyzed to uncover, or discover, the phenomena from which it was created. However, as the analytic models leveraged to analyze these data continue to increase in complexity and computational capability, how can visualizations and user interaction methodologies adapt and evolve to continue to foster discovery and sensemaking?

  11. T.Rex Visual Analytics for Transactional Exploration

    SciTech Connect (OSTI)

    None

    2014-07-01T23:59:59.000Z

    T.Rex is PNNL's visual analytics tool that specializes in tabular structured data, like you might open with Excel. It's a client-server application, allowing the server to do a lot of the heavy lifting and the client to open spreadsheets with millions of rows. With datasets of that size, especially if you're unfamiliar with the contents, it's very hard to get a good grasp of what's in it using traditional tools. With T.Rex, the multiple views allow you to see categorical, temporal, numerical, relational, and summary data. The interactivity lets you look across your data and see how things relate to each other.

  12. Landau Free Energy and Analytic Tricritical Point in Holographic Superfluid

    E-Print Network [OSTI]

    Wung-Hong Huang

    2015-02-24T23:59:59.000Z

    We investigate the analytical method in studying the holographic superfluid model which is described by Maxwell field minimally coupling to a charged scalar field in a fixed AdS black hole background. We propose a method that enables us to find exact value of coefficient in the solution and thus obtain higher-order expansion of the associated Landau free energy of the holographic superfluid with flow. We determine the critical value of superfluid velocity at the tricritical point of holographic superfluid and compare it with the numerical value.

  13. Analytic Model of the Universal Structure of Turbulent Boundary Layers

    E-Print Network [OSTI]

    Victor S. L'vov; Itamar Procaccia; Oleksii Rudenko

    2006-06-21T23:59:59.000Z

    Turbulent boundary layers exhibit a universal structure which nevertheless is rather complex, being composed of a viscous sub-layer, a buffer zone, and a turbulent log-law region. In this letter we present a simple analytic model of turbulent boundary layers which culminates in explicit formulae for the profiles of the mean velocity, the kinetic energy and the Reynolds stress as a function of the distance from the wall. The resulting profiles are in close quantitative agreement with measurements over the entire structure of the boundary layer, without any need of re-fitting in the different zones.

  14. The cosmological model with an analytic exit from inflation

    E-Print Network [OSTI]

    S. V. Chervon; V. M. Zhuravlev

    1999-07-14T23:59:59.000Z

    A cosmological model of homogeneous and isotropic spatially flat Universe with gravitating self-interacting scalar field is considered. The exact solution, admitting an analytical exit from inflationary stage into a radiation era and a matter dominated epoch, is obtained by virtue of ``fine turning of the potential'' method. We found that an inflationary stage is supported by decay of higgs bosons in the framework of the solution obtained. Freidmann's regim is associated with adiabatical expantion of the Universe, filled by the matter with special equation of state. Thus we presented the exact solution which solve the problem of transition from an inflationary to a radiation eras or long standing `exit' problem.

  15. Model and Analytic Processes for Export License Assessments

    SciTech Connect (OSTI)

    Thompson, Sandra E.; Whitney, Paul D.; Weimar, Mark R.; Wood, Thomas W.; Daly, Don S.; Brothers, Alan J.; Sanfilippo, Antonio P.; Cook, Diane; Holder, Larry

    2011-09-29T23:59:59.000Z

    This paper represents the Department of Energy Office of Nonproliferation Research and Development (NA-22) Simulations, Algorithms and Modeling (SAM) Program's first effort to identify and frame analytical methods and tools to aid export control professionals in effectively predicting proliferation intent; a complex, multi-step and multi-agency process. The report focuses on analytical modeling methodologies that alone, or combined, may improve the proliferation export control license approval process. It is a follow-up to an earlier paper describing information sources and environments related to international nuclear technology transfer. This report describes the decision criteria used to evaluate modeling techniques and tools to determine which approaches will be investigated during the final 2 years of the project. The report also details the motivation for why new modeling techniques and tools are needed. The analytical modeling methodologies will enable analysts to evaluate the information environment for relevance to detecting proliferation intent, with specific focus on assessing risks associated with transferring dual-use technologies. Dual-use technologies can be used in both weapons and commercial enterprises. A decision-framework was developed to evaluate which of the different analytical modeling methodologies would be most appropriate conditional on the uniqueness of the approach, data availability, laboratory capabilities, relevance to NA-22 and Office of Arms Control and Nonproliferation (NA-24) research needs and the impact if successful. Modeling methodologies were divided into whether they could help micro-level assessments (e.g., help improve individual license assessments) or macro-level assessment. Macro-level assessment focuses on suppliers, technology, consumers, economies, and proliferation context. Macro-level assessment technologies scored higher in the area of uniqueness because less work has been done at the macro level. An approach to developing testable hypotheses for the macro-level assessment methodologies is provided. The outcome of this works suggests that we should develop a Bayes Net for micro-level analysis and continue to focus on Bayes Net, System Dynamics and Economic Input/Output models for assessing macro-level problems. Simultaneously, we need to develop metrics for assessing intent in export control, including the risks and consequences associated with all aspects of export control.

  16. Analytical Rescaling of Polymer Dynamics from Mesoscale Simulations

    E-Print Network [OSTI]

    I. Y. Lyubimov; J. McCarty; A. Clark; M. G. Guenza

    2011-03-10T23:59:59.000Z

    We present a theoretical approach to scale the artificially fast dynamics of simulated coarse-grained polymer liquids down to its realistic value. As coarse-graining affects entropy and dissipation, two factors enter the rescaling: inclusion of intramolecular vibrational degrees of freedom, and rescaling of the friction coefficient. Because our approach is analytical, it is general and transferable. Translational and rotational diffusion of unentangled and entangled polyethylene melts, predicted from mesoscale simulations of coarse-grained polymer melts using our rescaling procedure, are in quantitative agreement with united atom simulations and with experiments.

  17. Data driven analytic continuation for one particle spectral functions

    SciTech Connect (OSTI)

    Liu, Jun [Ames Laboratory

    2013-01-01T23:59:59.000Z

    In this proceeding, an idea is outlined suggesting a generic treatment on any type of input data for a numerical analytic continuation problem, which is needed when dynamical information is to be extracted from a calculationally convenient one particle imaginary time Green function. The quality of the resulting spectral function will rely only on the data to be treated, viz, data-driven. This is different from the Maximum Entropy or the Stochastic method which relies on an entropy term to guide convergence of the resulting spectral function.

  18. Off-shell tachyon amplitudes analyticity and projective invariance

    E-Print Network [OSTI]

    Cuomo, F; Nicodemi, F; Pettorino, R; Pezzella, F; Sabella, G

    2001-01-01T23:59:59.000Z

    We compute off-shell three- and four-tachyon amplitudes at tree level by using a prescription based on the requirement of projective invariance. In particular we show that the off-shell four-tachyon amplitude can be put in the same form as the corresponding on-shell one, exhibiting therefore the same analyticity properties. This is shown both for the bosonic and the fermionic string. The result obtained in the latter case can be extended to the off-shell four-tachyon amplitude in type 0 theory.

  19. Off-shell tachyon amplitudes: analyticity and projective invariance

    E-Print Network [OSTI]

    F. Cuomo; R. Marotta; F. Nicodemi; R. Pettorino; F. Pezzella; G. Sabella

    2000-11-09T23:59:59.000Z

    We compute off-shell three- and four-tachyon amplitudes at tree level by using a prescription based on the requirement of projective invariance. In particular we show that the off-shell four-tachyon amplitude can be put in the same form as the corresponding on-shell one, exhibiting therefore the same analyticity properties. This is shown both for the bosonic and the fermionic string. The result obtained in the latter case can be extended to the off-shell four-tachyon amplitude in type 0 theory.

  20. SASSI Analytical Methods Compared with SHAKE Results | Department of Energy

    Office of Environmental Management (EM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM615_CostNSAR -DepartmentRetailEnergy RoleAnalytical Methods Compared