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1

U-215: Oracle Critical Patch Update Advisory - July 2012 | Department of  

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

5: Oracle Critical Patch Update Advisory - July 2012 5: Oracle Critical Patch Update Advisory - July 2012 U-215: Oracle Critical Patch Update Advisory - July 2012 July 18, 2012 - 7:00am Addthis PROBLEM: Cumulative security patches for Oracle Critical Patch Update Advisory - July 2012 PLATFORM: Oracle Database, Oracle Fusion Middleware, Oracle Secure Backup, Oracle Application Server, Oracle Identity Management 10g, Hyperion BI, Oracle JRockit versions, Oracle Outside In Technology, Fusion Middleware, Enterprise Manager, Oracle E-Business Suite Applications, Oracle Transportation Management, Supply Chain, Oracle AutoVue, Oracle PeopleSoft Enterprise, Oracle Siebel CRM, Oracle Clinical Remote Data Capture Option, Oracle Sun Product Suite, Oracle MySQL Server ABSTRACT: Critical Patch Updates are the primary means of releasing security fixes

2

V-104: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code...  

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

4: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code V-104: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code March 5, 2013 - 12:53am Addthis PROBLEM: Oracle Java...

3

T-672: Oracle Critical Patch Update Advisory - July 2011 | Department of  

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

672: Oracle Critical Patch Update Advisory - July 2011 672: Oracle Critical Patch Update Advisory - July 2011 T-672: Oracle Critical Patch Update Advisory - July 2011 July 20, 2011 - 1:34pm Addthis PROBLEM: Oracle Critical Patch Update Advisory - July 2011 PLATFORM: Affected Products and Components ABSTRACT: Due to the threat posed by a successful attack, Oracle strongly recommends that customers apply CPU fixes as soon as possible. This Critical Patch Update contains 78 new security fixes across all product families. Critical Patch Updates and Security Alerts Security Alerts reference LINKS: Oracle Fusion Middleware Risk Matrix Oracle Database Server Risk Matrix Oracle Enterprise Manager Grid Control Risk Matrix Oracle E-Business Suite Risk Matrix Oracle PeopleSoft Products Risk Matrix Oracle Sun Products Suite Risk Matrix

4

U-268: Oracle Database Authentication Protocol Discloses Session Key  

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

8: Oracle Database Authentication Protocol Discloses Session 8: Oracle Database Authentication Protocol Discloses Session Key Information to Remote Users U-268: Oracle Database Authentication Protocol Discloses Session Key Information to Remote Users September 26, 2012 - 6:00am Addthis PROBLEM: Oracle Database Authentication Protocol Discloses Session Key Information to Remote Users PLATFORM: Oracle Database 11g Releases 1 and 2 ABSTRACT: A vulnerability was reported in Oracle Database. reference LINKS: Darkreading Threatpost Arstechnica Oracle Security Alerts SecurityTracker Alert ID: 1027558 CVE-2012-3137 IMPACT ASSESSMENT: Medium Discussion: The authentication protocol in Oracle Database 11g 1 and 2 allows remote attackers to obtain the session key and salt for arbitrary users, which leaks information about the cryptographic hash and makes it easier to

5

T-576: Oracle Solaris Adobe Flash Player Multiple Vulnerabilities |  

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

6: Oracle Solaris Adobe Flash Player Multiple Vulnerabilities 6: Oracle Solaris Adobe Flash Player Multiple Vulnerabilities T-576: Oracle Solaris Adobe Flash Player Multiple Vulnerabilities March 14, 2011 - 3:05pm Addthis PROBLEM: Oracle has acknowledged multiple vulnerabilities in Adobe Flash Player included in Solaris, which can be exploited by malicious people to compromise a user's system. PLATFORM: Sun Solaris 10 ABSTRACT: Oracle Solaris Adobe Flash Player Multiple Vulnerabilities. reference LINKS: Secunia Advisory: SA43747 Oracle Sun Advisory: CVE Multiple Vulnerabilities in Adobe Flash Player Secure List: SA43747 Oracle Sun Support Adobe Flash Player for Linux and Solaris IMPACT ASSESSMENT: High Discussion: Oracle has acknowledged multiple vulnerabilities in Solaris, which can be exploited by malicious people to disclose sensitive information, bypass

6

U-268: Oracle Database Authentication Protocol Discloses Session Key  

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

8: Oracle Database Authentication Protocol Discloses Session 8: Oracle Database Authentication Protocol Discloses Session Key Information to Remote Users U-268: Oracle Database Authentication Protocol Discloses Session Key Information to Remote Users September 26, 2012 - 6:00am Addthis PROBLEM: Oracle Database Authentication Protocol Discloses Session Key Information to Remote Users PLATFORM: Oracle Database 11g Releases 1 and 2 ABSTRACT: A vulnerability was reported in Oracle Database. reference LINKS: Darkreading Threatpost Arstechnica Oracle Security Alerts SecurityTracker Alert ID: 1027558 CVE-2012-3137 IMPACT ASSESSMENT: Medium Discussion: The authentication protocol in Oracle Database 11g 1 and 2 allows remote attackers to obtain the session key and salt for arbitrary users, which leaks information about the cryptographic hash and makes it easier to

7

U-150: Oracle Critical Patch Update Advisory - April 2012 | Department of  

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

U-150: Oracle Critical Patch Update Advisory - April 2012 U-150: Oracle Critical Patch Update Advisory - April 2012 U-150: Oracle Critical Patch Update Advisory - April 2012 April 18, 2012 - 8:43am Addthis PROBLEM: Cumulative security patches for Oracle products has been released for April 17, 2012 PLATFORM: The Oracle Database, Oracle Fusion Middleware Oracle Enterprise Manager Grid Control, Oracle E-Business Suite Applications JD Edwards EnterpriseOne, JD Edwards OneWorld Tools PeopleSoft Enterprise Portal Applications, PeopleSoft Enterprise PeopleTools Siebel Enterprise, Industry Applications FLEXCUBE, Primavera and Oracle VM ABSTRACT: Critical Patch Updates are the primary means of releasing security fixes for Oracle products to customers with valid support contracts. They are released on the Tuesday closest to the 17th day of January, April, July and

8

T-605: Oracle Critical Patch Update Advisory - April 2011 | Department of  

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

5: Oracle Critical Patch Update Advisory - April 2011 5: Oracle Critical Patch Update Advisory - April 2011 T-605: Oracle Critical Patch Update Advisory - April 2011 April 19, 2011 - 4:13am Addthis PROBLEM: Oracle Critical Patch Update Advisory - April 19 2011. PLATFORM: Oracle Database, Oracle Fusion Middleware, Oracle Enterprise Manager Grid Control, Oracle E-Business Suite Applications, JD Edwards EnterpriseOne, JD Edwards OneWorld Tools, PeopleSoft Enterprise Portal Applications, PeopleSoft Enterprise PeopleTools, Siebel Enterprise, Oracle Industry Applications and Oracle VM patches. ABSTRACT: A Critical Patch Update is a collection of patches for multiple security vulnerabilities. It also includes non-security fixes that are required because of interdependencies by those security patches. Critical Patch Updates are cumulative.

9

U-019: Oracle Critical Patch Update Advisory - October 2011 | Department of  

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

19: Oracle Critical Patch Update Advisory - October 2011 19: Oracle Critical Patch Update Advisory - October 2011 U-019: Oracle Critical Patch Update Advisory - October 2011 October 25, 2011 - 8:46am Addthis PROBLEM: Oracle Critical Patch Update Advisory - October 2011 . PLATFORM: Oracle All Applicable Version(s) ABSTRACT: October 2011 Critical Patch Update, security vulnerability fixes for proprietary components of Oracle Linux will be announced in Oracle Critical Patch Updates. Reference LINKS: Oracle Critical Patch Update Advisory Oracle Risk Matrix JC3-CIRC Tech Bulletin U-014 Oracle Patch Table IMPACT ASSESSMENT: High Discussion: A Critical Patch Update is a collection of patches for multiple security vulnerabilities. Critical Patch Update patches are usually cumulative but each advisory describes only the security fixes added since the previous

10

T-535: Oracle Critical Patch Update - January 2011 | Department of Energy  

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

T-535: Oracle Critical Patch Update - January 2011 T-535: Oracle Critical Patch Update - January 2011 T-535: Oracle Critical Patch Update - January 2011 January 14, 2011 - 9:39pm Addthis PROBLEM: Oracle Critical Patch Update - January 2011 PLATFORM: Oracle Database 11g Release 2, Oracle Database 11g Release 1, Oracle Database 10g Release 2, versions 10.2.0.3, 10.2.0.4, 10.2.0.5, Sun Oracle Database 10g Release 1, version 10.1.0.5 and other Oracle product suites. Please use the available URL for more details: Critical Patch Updates and Security Alerts ABSTRACT: This Critical Patch Update Pre-Release Announcement provides advance information about the Oracle Critical Patch Update for January 2011, which will be released on Tuesday, January 18, 2011. While this Pre-Release Announcement is as accurate as possible at the time of publication, the

11

T-537: Oracle Critical Patch Update Advisory - January 2011 | Department of  

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

7:11am 7:11am Addthis PROBLEM: Oracle Critical Patch Update Advisory - January 2011. PLATFORM: Oracle Database, Oracle Fusion Middleware, Oracle Enterprise Manager Grid Control, Oracle E-Business Suite Applications, JD Edwards EnterpriseOne, JD Edwards OneWorld Tools, PeopleSoft Enterprise Portal Applications, PeopleSoft Enterprise PeopleTools, Siebel Enterprise, Oracle Industry Applications and Oracle VM patches. ABSTRACT: A Critical Patch Update is a collection of patches for multiple security vulnerabilities. It also includes non-security fixes that are required because of interdependencies by those security patches. Critical Patch Updates are cumulative. reference LINKS: Oracle Critical Patch SecurityTracker Alert ID: 1024979 CVE-2010-3594 Oracle Appendix Critical Patch Updates and Security Alerts

12

T-537: Oracle Critical Patch Update Advisory - January 2011 | Department of  

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

2:30pm 2:30pm Addthis PROBLEM: Oracle Critical Patch Update Advisory - January 2011. PLATFORM: Oracle Database, Oracle Fusion Middleware, Oracle Enterprise Manager Grid Control, Oracle E-Business Suite Applications, JD Edwards EnterpriseOne, JD Edwards OneWorld Tools, PeopleSoft Enterprise Portal Applications, PeopleSoft Enterprise PeopleTools, Siebel Enterprise, Oracle Industry Applications and Oracle VM patches. ABSTRACT: A Critical Patch Update is a collection of patches for multiple security vulnerabilities. It also includes non-security fixes that are required because of interdependencies by those security patches. Critical Patch Updates are cumulative. reference LINKS: Oracle Critical Patch SecurityTracker Alert ID: 1024979 CVE-2010-3594 Oracle Appendix Critical Patch Updates and Security Alerts

13

V-004: Oracle Critical Patch Update Advisory - October 2012 | Department of  

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

4: Oracle Critical Patch Update Advisory - October 2012 4: Oracle Critical Patch Update Advisory - October 2012 V-004: Oracle Critical Patch Update Advisory - October 2012 October 17, 2012 - 6:00am Addthis PROBLEM: Oracle Critical Patch Update Advisory - October 2012 PLATFORM: Oracle All Applicable Version(s) ABSTRACT: October 2012 Critical Patch Update, security vulnerability fixes for proprietary components of Oracle Linux will be announced in Oracle Critical Patch Updates. REFERENCE LINKS: Oracle Critical Patch Update Advisory IMPACT ASSESSMENT: High DISCUSSION: A Critical Patch Update is a collection of patches for multiple security vulnerabilities. Critical Patch Update patches are usually cumulative but each advisory describes only the security fixes added since the previous Critical Patch Update advisory. IMPACT:

14

U-233: Oracle Database INDEXTYPE CTXSYS.CONTEXT Bug Lets Remote  

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

3: Oracle Database INDEXTYPE CTXSYS.CONTEXT Bug Lets Remote 3: Oracle Database INDEXTYPE CTXSYS.CONTEXT Bug Lets Remote Authenticated Users Gain Elevated Privileges U-233: Oracle Database INDEXTYPE CTXSYS.CONTEXT Bug Lets Remote Authenticated Users Gain Elevated Privileges August 13, 2012 - 7:00am Addthis PROBLEM: Oracle Database INDEXTYPE CTXSYS.CONTEXT Bug Lets Remote Authenticated Users Gain Elevated Privileges PLATFORM: Oracle Database Server versions 10.2.0.3, 10.2.0.4, 10.2.0.5, 11.1.0.7, 11.2.0.2, 11.2.0.3 ABSTRACT: A remote authenticated user with 'Create Table' privileges can gain 'SYS' privileges on the target system. Reference LINKS: Oracle Security Alert Oracle Security Alert - CVE-2012-3132 Risk Matrices SecurityTracker Alert ID: 1027367 CVE-2012-3132 IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Oracle Database. This vulnerability is not

15

U-191: Oracle Java Multiple Vulnerabilities | Department of Energy  

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

91: Oracle Java Multiple Vulnerabilities 91: Oracle Java Multiple Vulnerabilities U-191: Oracle Java Multiple Vulnerabilities June 14, 2012 - 7:00am Addthis PROBLEM: Multiple vulnerabilities have been reported in Oracle Java, which can be exploited by malicious local users PLATFORM: Oracle Java JDK 1.7.x / 7.x Oracle Java JRE 1.7.x / 7.x Sun Java JDK 1.5.x Sun Java JDK 1.6.x / 6.x Sun Java JRE 1.4.x Sun Java JRE 1.5.x / 5.x Sun Java JRE 1.6.x / 6.x Sun Java SDK 1.4.x ABSTRACT: The Critical Patch Update for Java SE also includes non-security fixes. Critical Patch Updates are cumulative and each advisory describes only the security fixes added since the previous Critical Patch Update. Thus, prior Critical Patch Update Advisories should be reviewed for information regarding earlier accumulated security fixes.

16

V-083: Oracle Java Multiple Vulnerabilities | Department of Energy  

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

3: Oracle Java Multiple Vulnerabilities 3: Oracle Java Multiple Vulnerabilities V-083: Oracle Java Multiple Vulnerabilities February 4, 2013 - 12:42am Addthis PROBLEM: Oracle Java Multiple Vulnerabilities PLATFORM: Oracle Java JDK 1.5.x / 5.x Oracle Java JDK 1.7.x / 7.x Oracle Java JRE 1.7.x / 7.x Oracle Java SDK 1.4.x / 4.x Sun Java JDK 1.4.x Sun Java JDK 1.6.x / 6.x Sun Java JRE 1.4.x / 4.x Sun Java JRE 1.5.x / 5.x Sun Java JRE 1.6.x / 6.x ABSTRACT: A Critical Patch Update is a collection of patches for multiple security vulnerabilities. The Critical Patch Update for Java SE also includes non-security fixes. Critical Patch Updates are cumulative and each advisory describes only the security fixes added since the previous Critical Patch Update and Security Alert. REFERENCE LINKS: Oracle Security Advisory February 2013

17

V-083: Oracle Java Multiple Vulnerabilities | Department of Energy  

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

3: Oracle Java Multiple Vulnerabilities 3: Oracle Java Multiple Vulnerabilities V-083: Oracle Java Multiple Vulnerabilities February 4, 2013 - 12:42am Addthis PROBLEM: Oracle Java Multiple Vulnerabilities PLATFORM: Oracle Java JDK 1.5.x / 5.x Oracle Java JDK 1.7.x / 7.x Oracle Java JRE 1.7.x / 7.x Oracle Java SDK 1.4.x / 4.x Sun Java JDK 1.4.x Sun Java JDK 1.6.x / 6.x Sun Java JRE 1.4.x / 4.x Sun Java JRE 1.5.x / 5.x Sun Java JRE 1.6.x / 6.x ABSTRACT: A Critical Patch Update is a collection of patches for multiple security vulnerabilities. The Critical Patch Update for Java SE also includes non-security fixes. Critical Patch Updates are cumulative and each advisory describes only the security fixes added since the previous Critical Patch Update and Security Alert. REFERENCE LINKS: Oracle Security Advisory February 2013

18

V-185: Apache OpenOffice SDK Oracle Java JavaDoc Spoofing Vulnerability |  

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

5: Apache OpenOffice SDK Oracle Java JavaDoc Spoofing 5: Apache OpenOffice SDK Oracle Java JavaDoc Spoofing Vulnerability V-185: Apache OpenOffice SDK Oracle Java JavaDoc Spoofing Vulnerability June 25, 2013 - 12:41am Addthis PROBLEM: Apache OpenOffice SDK Oracle Java JavaDoc Spoofing Vulnerability PLATFORM: Apache OpenOffice SDK 3.x ABSTRACT: Apache has acknowledged a vulnerability in Apache OpenOffice SDK REFERENCE LINKS: Apache OpenOffice Secunia Advisory SA53963 Secunia Advisory SA53846 CVE-2013-1571 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is caused due to a UDK 3.2.7 Java API Reference JavaDoc file having been generated using a vulnerable version of Oracle Java. IMPACT: Apache can be exploited by malicious people to conduct spoofing attacks. SOLUTION: The vendor has issued a fix. Addthis Related Articles

19

T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 |  

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

1: Oracle Java SE Critical Patch Update Advisory - June 2011 1: Oracle Java SE Critical Patch Update Advisory - June 2011 T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 June 8, 2011 - 12:26pm Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory - June 2011 PLATFORM: JDK and JRE 6 Update 25 and earlier, Java SE, JDK 5.0 Update 29 and earlier Java SE, SDK 1.4.2_31 and earlier ABSTRACT: This Critical Patch Update contains 17 new security fixes for Oracle Java SE - 5 apply to client and server deployments of Java SE, 11 apply to client deployments of Java SE only, and 1 applies to server deployments of Java SE only. All of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a network without the need for a username and password. Oracle CVSS scores assume that a user running a Java applet or Java Web

20

V-067: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code |  

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

7: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code 7: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code V-067: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code January 11, 2013 - 12:01am Addthis PROBLEM: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code PLATFORM: Oracle Java Runtime Environment (JRE) 1.7 in Java 7 Update 10 and earlier ABSTRACT: A vulnerability was reported in Oracle Java. REFERENCE LINKS: Seclist.org Vulnerability Note VU#625617 SecurityTracker Alert ID: 1027972 Malware.dontneedcoffee.com CVE-2013-0422 IMPACT ASSESSMENT: High DISCUSSION: A remote user can create specially crafted Java content that, when loaded by the target user, will execute arbitrary code on the target user's system. The code will run with the privileges of the target user. This vulnerability is being actively exploited.

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


21

V-095: Oracle Java Flaws Let Remote Users Execute Arbitrary Code |  

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

5: Oracle Java Flaws Let Remote Users Execute Arbitrary Code 5: Oracle Java Flaws Let Remote Users Execute Arbitrary Code V-095: Oracle Java Flaws Let Remote Users Execute Arbitrary Code February 20, 2013 - 12:38am Addthis PROBLEM: Oracle Java Flaws Let Remote Users Execute Arbitrary Code PLATFORM: JDK and JRE 7 Update 13 and earlier JDK and JRE 6 Update 39 and earlier JDK and JRE 5.0 Update 39 and earlier SDK and JRE 1.4.2_41 and earlier ABSTRACT: Several vulnerabilities were reported in Oracle Java. REFERENCE LINKS: Updated Release of the February 2013 Oracle Java SE Critical Patch Update SecurityTracker Alert ID: 1028155 CVE-2013-1484 CVE-2013-1485 CVE-2013-1486 CVE-2013-1487 IMPACT ASSESSMENT: High DISCUSSION: A remote user can create a specially crafted Java Web Start application or Java applet that, when loaded by the target user, will execute arbitrary

22

V-136: Oracle Critical Patch Update Advisory - April 2013 | Department of  

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

6: Oracle Critical Patch Update Advisory - April 2013 6: Oracle Critical Patch Update Advisory - April 2013 V-136: Oracle Critical Patch Update Advisory - April 2013 April 17, 2013 - 1:46am Addthis PROBLEM: Oracle Critical Patch Update Advisory - April 2013 PLATFORM: Oracle All Applicable Version(s) ABSTRACT: Several vulnerabilities addressed in this Critical Patch Update affect multiple products REFERENCE LINKS: Oracle Critical Patch Update Advisory IMPACT ASSESSMENT: High DISCUSSION: A Critical Patch Update (CPU) is a collection of patches for multiple security vulnerabilities. Critical Patch Update patches are usually cumulative, but each advisory describes only the security fixes added since the previous Critical Patch Update advisory. Thus, prior Critical Patch Update advisories should be reviewed for information regarding earlier

23

U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote  

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

4: Oracle Java Runtime Environment (JRE) Multiple Flaws Let 4: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service October 19, 2011 - 6:00pm Addthis PROBLEM: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service. PLATFORM: Oracle JDK and JRE 7; JDK and JRE 6 Update 27 and prior; JDK and JRE 5.0 Update 31 and prior; SDK and JRE 1.4.2_33 and prior ABSTRACT: A remote user can create a Java applet or Java Web Start application that, when loaded by the target user, will access or modify data or execute arbitrary code on the target user's system. reference LINKS: Oracle Critical Patch Updates and Security Alerts

24

U-105:Oracle Java SE Critical Patch Update Advisory | Department of Energy  

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

5:Oracle Java SE Critical Patch Update Advisory 5:Oracle Java SE Critical Patch Update Advisory U-105:Oracle Java SE Critical Patch Update Advisory February 16, 2012 - 11:45am Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory PLATFORM: 1.4.2_35 and prior, 5.0 Update 33 and prior; 6 Update 30 and prior; 7 Update 2 and prior ABSTRACT: Multiple vulnerabilities were reported in Oracle Java SE. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions. reference LINKS: Oracle Java SE Critical Patch Critical Patch Security Alerts SecurityTracker Alert ID: 1026688 Secunia Advisory: SA48009 Red Hat advisory IMPACT ASSESSMENT: High Discussion: A remote user can send specially crafted data to execute arbitrary code on the target system or cause complete denial of service conditions. The Java

25

T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 |  

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

41: Oracle Java SE Critical Patch Update Advisory - June 2011 41: Oracle Java SE Critical Patch Update Advisory - June 2011 T-641: Oracle Java SE Critical Patch Update Advisory - June 2011 June 8, 2011 - 12:26pm Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory - June 2011 PLATFORM: JDK and JRE 6 Update 25 and earlier, Java SE, JDK 5.0 Update 29 and earlier Java SE, SDK 1.4.2_31 and earlier ABSTRACT: This Critical Patch Update contains 17 new security fixes for Oracle Java SE - 5 apply to client and server deployments of Java SE, 11 apply to client deployments of Java SE only, and 1 applies to server deployments of Java SE only. All of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a network without the need for a username and password. Oracle CVSS scores assume that a user running a Java applet or Java Web

26

V-067: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code |  

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

7: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code 7: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code V-067: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code January 11, 2013 - 12:01am Addthis PROBLEM: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code PLATFORM: Oracle Java Runtime Environment (JRE) 1.7 in Java 7 Update 10 and earlier ABSTRACT: A vulnerability was reported in Oracle Java. REFERENCE LINKS: Seclist.org Vulnerability Note VU#625617 SecurityTracker Alert ID: 1027972 Malware.dontneedcoffee.com CVE-2013-0422 IMPACT ASSESSMENT: High DISCUSSION: A remote user can create specially crafted Java content that, when loaded by the target user, will execute arbitrary code on the target user's system. The code will run with the privileges of the target user. This vulnerability is being actively exploited.

27

V-142: Oracle Java Reflection API Flaw Lets Remote Users Execute Arbitrary  

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

2: Oracle Java Reflection API Flaw Lets Remote Users Execute 2: Oracle Java Reflection API Flaw Lets Remote Users Execute Arbitrary Code V-142: Oracle Java Reflection API Flaw Lets Remote Users Execute Arbitrary Code April 25, 2013 - 12:14am Addthis PROBLEM: Oracle Java Reflection API Flaw Lets Remote Users Execute Arbitrary Code PLATFORM: Version(s): 7 Update 21; possibly other versions (1.7.0_21-b11) Java Server JRE is also affected. ABSTRACT: A vulnerability was reported in Oracle Java. REFERENCE LINKS: SecurityTracker Alert ID: 1028466 Oracle IMPACT ASSESSMENT: Medium DISCUSSION: A remote user can create a specially crafted Java application that, when loaded and approved by the target user, will trigger a flaw in the Reflection API to bypass the security sandbox. IMPACT: A remote user can create a Java file that, when loaded by the target user,

28

U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote  

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

14: Oracle Java Runtime Environment (JRE) Multiple Flaws Let 14: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service October 19, 2011 - 6:00pm Addthis PROBLEM: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service. PLATFORM: Oracle JDK and JRE 7; JDK and JRE 6 Update 27 and prior; JDK and JRE 5.0 Update 31 and prior; SDK and JRE 1.4.2_33 and prior ABSTRACT: A remote user can create a Java applet or Java Web Start application that, when loaded by the target user, will access or modify data or execute arbitrary code on the target user's system. reference LINKS: Oracle Critical Patch Updates and Security Alerts

29

U-105:Oracle Java SE Critical Patch Update Advisory | Department of Energy  

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

05:Oracle Java SE Critical Patch Update Advisory 05:Oracle Java SE Critical Patch Update Advisory U-105:Oracle Java SE Critical Patch Update Advisory February 16, 2012 - 11:45am Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory PLATFORM: 1.4.2_35 and prior, 5.0 Update 33 and prior; 6 Update 30 and prior; 7 Update 2 and prior ABSTRACT: Multiple vulnerabilities were reported in Oracle Java SE. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions. reference LINKS: Oracle Java SE Critical Patch Critical Patch Security Alerts SecurityTracker Alert ID: 1026688 Secunia Advisory: SA48009 Red Hat advisory IMPACT ASSESSMENT: High Discussion: A remote user can send specially crafted data to execute arbitrary code on the target system or cause complete denial of service conditions. The Java

30

T-561: IBM and Oracle Java Binary Floating-Point Number Conversion Denial  

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

61: IBM and Oracle Java Binary Floating-Point Number Conversion 61: IBM and Oracle Java Binary Floating-Point Number Conversion Denial of Service Vulnerability T-561: IBM and Oracle Java Binary Floating-Point Number Conversion Denial of Service Vulnerability February 21, 2011 - 7:00am Addthis PROBLEM: IBM and Oracle Java Binary Floating-Point Number Conversion Denial of Service Vulnerability. PLATFORM: The following Java products are affected: Java SE: Oracle JDK and JRE 6 Update 23 and prior for Windows, Solaris, and Linux Oracle JDK 5.0 Update 27 and prior for Solaris 9 Oracle SDK 1.4.2_29 and prior for Solaris 8 IBM JDK 6 Update SR9 and prior IBM JDK 5 Update SR12-FP3 and prior IBM JDK 1.4.2 Update SR13-FP8 and prior Java for Business: Oracle JDK and JRE 6 Update 23 and prior for Windows, Solaris, and Linux Oracle JDK and JRE 5.0 Update 27 and prior for Windows, Solaris, and Linux

31

V-189: Oracle VirtualBox 'tracepath' Bug Lets Local Guest Users Deny  

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

9: Oracle VirtualBox 'tracepath' Bug Lets Local Guest Users 9: Oracle VirtualBox 'tracepath' Bug Lets Local Guest Users Deny Service on the Target Host V-189: Oracle VirtualBox 'tracepath' Bug Lets Local Guest Users Deny Service on the Target Host July 1, 2013 - 12:48am Addthis PROBLEM: Oracle VirtualBox 'tracepath' Bug Lets Local Guest Users Deny Service on the Target Host PLATFORM: VirtualBox 4.2.12 ABSTRACT: A vulnerability was reported in Oracle VirtualBox. REFERENCE LINKS: VirtualBox ticket: 11863 SecurityTracker Alert ID: 1028712 IMPACT ASSESSMENT: Medium DISCUSSION: A local user on the guest operating system can issue a 'tracepath' command to cause the network on the target host system to become unavailable. IMPACT: A local user on a guest operating system can cause denial of service conditions on the target host system.

32

U-018: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities |  

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

18: Oracle AutoVue ActiveX Control Insecure Method 18: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities U-018: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities October 25, 2011 - 8:45am Addthis PROBLEM: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities. PLATFORM: The vulnerabilities are confirmed in version 20.0.2 build 7910 (AutoVueX.ocx 20.1.1.7910). Other versions may also be affected. ABSTRACT: Successful exploitation of the vulnerabilities allows execution of arbitrary code. reference LINKS: Bugtraq ID: 50321 Secunia Advisory SA46473 Oracle AutoVue IMPACT ASSESSMENT: High Discussion: Successfully exploiting this issue will allow attackers to create or overwrite arbitrary files on the victim's computer within the context of the affected application (typically Internet Explorer) that uses the

33

U-234: Oracle MySQL User Login Security Bypass Vulnerability | Department  

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

234: Oracle MySQL User Login Security Bypass Vulnerability 234: Oracle MySQL User Login Security Bypass Vulnerability U-234: Oracle MySQL User Login Security Bypass Vulnerability August 14, 2012 - 7:00am Addthis PROBLEM: Oracle MySQL User Login Security Bypass Vulnerability PLATFORM: Version(s): prior to 5.1.63 and 5.5.25 are vulnerable. ABSTRACT: Oracle MySQL is prone to a security bypass vulnerability Attackers can exploit this issue to bypass certain security restrictions. REFERENCE LINKS: http://www.securityfocus.com/bid/53911/discuss CVE-2012-2122 IMPACT ASSESSMENT: Medium Discussion: Security researchers have released details about a vulnerability in the MySQL server that could allow potential attackers to access MySQL databases without inputting proper authentication credentials.The vulnerability is identified as CVE-2012-2122 and was addressed in MySQL 5.1.63 and 5.5.25 in

34

V-051: Oracle Solaris Java Multiple Vulnerabilities | Department of Energy  

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

1: Oracle Solaris Java Multiple Vulnerabilities 1: Oracle Solaris Java Multiple Vulnerabilities V-051: Oracle Solaris Java Multiple Vulnerabilities December 20, 2012 - 12:15am Addthis PROBLEM: Oracle Solaris Java Multiple Vulnerabilities PLATFORM: Oracle Solaris 11.x ABSTRACT: Oracle has acknowledged multiple vulnerabilities in Java included in Solaris REFERENCE LINKS: Secunia Advisory: SA51618 Secunia Advisory: SA50949 Third Party Vulnerability Resolution Blog in Java 7U9 Third Party Vulnerability Resolution Blog in Java 6U37 CVE-2012-1531 CVE-2012-1532 CVE-2012-1533 CVE-2012-3143 CVE-2012-3159 CVE-2012-3216 CVE-2012-4416 CVE-2012-5067 CVE-2012-5068 CVE-2012-5069 CVE-2012-5070 CVE-2012-5071 CVE-2012-5072 CVE-2012-5073 CVE-2012-5074 CVE-2012-5075 CVE-2012-5076 CVE-2012-5077 CVE-2012-5079 CVE-2012-5081 CVE-2012-5083 CVE-2012-5084

35

V-181: Oracle Java SE Critical Patch Update Advisory - June 2013 |  

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

1: Oracle Java SE Critical Patch Update Advisory - June 2013 1: Oracle Java SE Critical Patch Update Advisory - June 2013 V-181: Oracle Java SE Critical Patch Update Advisory - June 2013 June 19, 2013 - 1:06am Addthis PROBLEM: Oracle Java SE Critical Patch Update Advisory - June 2013 PLATFORM: Version(s): 5.0 Update 45, 6 Update 45, 7 Update 21; and prior versions ABSTRACT: Multiple vulnerabilities were reported in Oracle Java. REFERENCE LINKS: Oracle Java SE Critical Patch Update June 2013 SecurityTracker Alert ID: 1028679 CVE-2013-1500, CVE-2013-1571 CVE-2013-2400, CVE-2013-2407 CVE-2013-2412, CVE-2013-2437 CVE-2013-2442, CVE-2013-2443 CVE-2013-2444, CVE-2013-2445 CVE-2013-2446, CVE-2013-2447 CVE-2013-2448, CVE-2013-2449 CVE-2013-2450, CVE-2013-2451 CVE-2013-2452, CVE-2013-2453 CVE-2013-2454, CVE-2013-2455 CVE-2013-2456, CVE-2013-2457

36

T-558: Oracle Java SE and Java for Business Critical Patch Update Advisory  

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

8: Oracle Java SE and Java for Business Critical Patch Update 8: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011 T-558: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011 February 16, 2011 - 7:00am Addthis PROBLEM: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011. PLATFORM: JDK and JRE 6 Update 23 and earlier for Windows, Solaris, and Linux JDK 5.0 Update 27 and earlier for Solaris 9 SDK 1.4.2_29 and earlier for Solaris 8 JDK and JRE 6 Update 23 and earlier for Windows, Solaris and Linux JDK and JRE 5.0 Update 27 and earlier for Windows, Solaris and Linux SDK and JRE 1.4.2_29 and earlier for Windows, Solaris and Linux ABSTRACT: This Critical Patch Update contains 21 new security fixes for Oracle Java SE and Java for Business. 19 of these vulnerabilities may be remotely

37

Oracle Log Buffer Queueing  

SciTech Connect

The purpose of this document is to investigate Oracle database log buffer queuing and its affect on the ability to load data using a specialized data loading system. Experiments were carried out on a Linux system using an Oracle 9.2 database. Previous experiments on a Sun 4800 running Solaris had shown that 100,000 entities per minute was an achievable rate. The question was then asked, can we do this on Linux, and where are the bottlenecks? A secondary question was also lurking, how can the loading be further scaled to handle even higher throughput requirements? Testing was conducted using a Dell PowerEdge 6650 server with four CPUs and a Dell PowerVault 220s RAID array with 14 36GB drives and 128 MB of cache. Oracle Enterprise Edition 9.2.0.4 was used for the database and Red Hat Linux Advanced Server 2.1 was used for the operating system. This document will detail the maximum observed throughputs using the same test suite that was used for the Sun tests. A detailed description of the testing performed along with an analysis of bottlenecks encountered will be made. Issues related to Oracle and Linux will also be detailed and some recommendations based on the findings.

Rivenes, A S

2004-12-08T23:59:59.000Z

38

ORACLE Manual for Programmers  

SciTech Connect

The "ORACLE", Oak Ridge Automatic Computer and Logical Engine, was installed at Oak Ridge National Laboratory :in 1953 and.has been in operation since that time. This manual describes the machine's design, the number systems it uses, and its basic operations.

Atta, Susie E.

1958-01-22T23:59:59.000Z

39

Maximum Availability Architecture Oracle Best Practices For High AvailabilityOracle White Paper桟onfiguring Oracle Management Agent to Manage Oracle Fail Safe  

E-Print Network (OSTI)

Setting up Oracle Management Agent and Oracle Fail Safe.............. 3 Step 1: Install a Management Agent on each cluster node............ 3

Executive Overview; Introduction Oracle; Fail Safe

2010-01-01T23:59:59.000Z

40

Oracle Essbase 9 Implementation Guide  

Science Conference Proceedings (OSTI)

Develop high-performance multidimensional analytic OLAP solutions with Oracle Essbase Build multidimensional Essbase database cubes and develop analytical Essbase applicationsStep-by-step instructions with expert tips from installation to implementationCan ...

Joseph Sydney Gomez; Sarma Anantapantula

2009-06-01T23:59:59.000Z

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


41

U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let...  

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

4: Oracle Java Runtime Environment (JRE) Multiple Flaws Let Remote Users Execute Arbitrary Code and Deny Service U-014: Oracle Java Runtime Environment (JRE) Multiple Flaws Let...

42

U-268: Oracle Database Authentication Protocol Discloses Session...  

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

Bug Lets Remote Authenticated Users Gain Elevated Privileges V-104: Oracle Java Flaw Lets Remote Users Execute Arbitrary Code T-535: Oracle Critical Patch Update -...

43

Random oracles in a quantum world  

Science Conference Proceedings (OSTI)

The interest in post-quantum cryptography -- classical systems that remain secure in the presence of a quantum adversary -- has generated elegant proposals for new cryptosystems. Some of these systems are set in the random oracle model and are proven ... Keywords: encryption, quantum, random oracle, signatures

Dan Boneh; 謟g黵 Dagdelen; Marc Fischlin; Anja Lehmann; Christian Schaffner; Mark Zhandry

2011-12-01T23:59:59.000Z

44

PROGRAMMERS MANUAL FOR THE ORACLE COMPILER  

SciTech Connect

Desirable characteristics for the ORACLE compiler are given and limitations, item format, key words, and crossitem references are discussed. Programming and operating procedure are described. (W.D.M.)

LaVerne, M.E.; Bate, R.R.; Coveyou, R.R.; Sullivan, J.G.; Osborne, B.J.; Downing, A.C.; Harrison, J.; Long, E.C.; Grau, A.A.

1957-08-23T23:59:59.000Z

45

Oracle accrual plans from requirements to implementation  

SciTech Connect

Implementing any new business software can be an intimidating prospect and this paper is intended to offer some insight in to how to approach this challenge with some fundamental rules for success. Los Alamos National Laboratory (LANL) had undergone an original ERP implementation of HRMS, Oracle Advanced Benefits, Worker Self Service, Manager Self Service, Project Accounting, Financials and PO, and recently completed a project to implement Oracle Payroll, Time and Labor and Accrual Plans. This paper will describe some of the important lessons that can be applied to any implementation as a whole, and then specifically how this knowledge was applied to the design and deployment of Oracle Accrual Plans for LANL. Finally, detail on the functionality available in Oracle Accrual Plans will be described, as well as the detailed setups.that were utilized at LANL.

Rivera, Christine K [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

46

Oracle PL/SQL by Example, 4th edition  

Science Conference Proceedings (OSTI)

This integrated learning solution teaches all the Oracle PL/SQL skills you need, hands-on, through real-world labs, extensive examples, exercises, and projects! Completely updated for Oracle 11g, Oracle PL/SQL by Example, Fourth Edition covers all the ...

Benjamin Rosenzweig; Elena Silvestrova Rakhimov

2008-08-01T23:59:59.000Z

47

U-083:Oracle Critical Patch Update Advisory - January 2012 |...  

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

10.2.0.3, 10.2.0.4, 10.2.0.5 Oracle Database 10g Release 1, version 10.1.0.5 Oracle Fusion Middleware 11g Release 1, versions 11.1.1.3.0, 11.1.1.4.0, 11.1.1.5.0 Oracle...

48

Oracle and Corporate Citizenship Paul Salinger  

E-Print Network (OSTI)

car option in EMEA 路 Electric cars on some campuses 路 Replacing chairs with 100% recyclable supply 路 Hydroelectric power when possible (100% used for Italian operations) 路 Recycled paper 路 Hybrid cars as company for a year. 路 Curbed emissions equivalent to taking 106 cars off the road for a year. Oracle Global Green

Loudon, Catherine

49

Oracle, Arizona: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Oracle, Arizona: Energy Resources Oracle, Arizona: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 32.6109054掳, -110.7709348掳 Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.6109054,"lon":-110.7709348,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

50

Sequential Aggregate Signatures and Multisignatures without Random Oracles  

E-Print Network (OSTI)

, in practice one could apply a collision-resistant hash function Hk : {0, 1} {0, 1} k to sign messages to a WVES opacity breaker of this sort: simulate a W signing oracle by a call to the verifiably encrypted

International Association for Cryptologic Research (IACR)

51

V-142: Oracle Java Reflection API Flaw Lets Remote Users Execute...  

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

2: Oracle Java Reflection API Flaw Lets Remote Users Execute Arbitrary Code V-142: Oracle Java Reflection API Flaw Lets Remote Users Execute Arbitrary Code April 25, 2013 - 12:14am...

52

T-561: IBM and Oracle Java Binary Floating-Point Number Conversion...  

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

61: IBM and Oracle Java Binary Floating-Point Number Conversion Denial of Service Vulnerability T-561: IBM and Oracle Java Binary Floating-Point Number Conversion Denial of Service...

53

T-558: Oracle Java SE and Java for Business Critical Patch Update...  

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

8: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011 T-558: Oracle Java SE and Java for Business Critical Patch Update Advisory - February 2011...

54

Rapid TRANSIT to the Future Using UPK for Oracle抯 E-Business Suite Executive Overview  

E-Print Network (OSTI)

This is a case study of how Denver Regional Transportation District (RTD) is utilizing Oracle抯 User Productivity Kit (UPK) software to maximize efficiency and effectiveness in its training programs for the implementation and rollout of Oracle E-Business Suite and Maximus maintenance management applications. This paper will answer several key questions about the use of UPK during the project, as well as why organizations should leverage UPK for their education and training rollouts as well as ongoing maintenance of those programs. Introduction and Background Denver RTD operates a public transportation system in an eight county service area with Denver, CO at the center. RTD is involved in several major transportation projects in the Denver metropolitan area including FasTracks, a 12 year regional transportation plan to improve and expand bus and rapid transit and T-REX, a combined light rail and highway expansion project. Involvement in both of these projects required RTD to

A Solbourne

2007-01-01T23:59:59.000Z

55

Building a user-friendly data dictionary system in ORACLE  

Science Conference Proceedings (OSTI)

For some time now developers of software systems have recognized the need to capture information about the system and to build a framework for retrieving this information so that it can be easily accessible to end users. Current trends, such as the Information Research Dictionary System (IRDS) standard, IBM's Repository, and a growing interest in Computer Aided Software Engineering (CASE) tools in the US and the Integrated Project Support Environment dictionary tools that capture information critical to the development and maintenance of a system throughout its life cycle. This paper describes the development of a menu-driven system dictionary in ORACLE for a design prototype system currently under development at Oak Ridge National Laboratory (ORNL). It addresses integration of ORACLE's data dictionary tables with the system dictionary, and possible avenues of future research regarding the design and implementation of an IRDS. 3 refs.

Loftis, J.P.; Friggle, W.E. (Oak Ridge National Lab., TN (USA); Tennessee Univ., Knoxville, TN (USA))

1989-01-01T23:59:59.000Z

56

U-233: Oracle Database INDEXTYPE CTXSYS.CONTEXT Bug Lets Remote...  

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

IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Oracle Database. This vulnerability is not remotely exploitable without authentication, i.e., may...

57

Developing a comprehensive training records and information system using ORACLE  

Science Conference Proceedings (OSTI)

A a result of Department of Energy orders and the need to improve the quality and management of employee training information, Westinghouse Savannah River Company (WSRC), Training Integration is charged with developing and implementing a sitewide automated and fully integrated Training Records And Information Network (TRAIN). TRAIN is a sitewide training support system developed in ORACLE for use by line management and training personnel. The TRAIN system follows the Performance-Based Training methodology and is designed to accomplish the following: support accrediation efforts; standardize training records and processes; provide management with current training information, and meet changing requirements in a timely, cost-effective manner. The system will utilize the site network to electronically access comprehensive training histories for site employees; course development information; centrally managed computer-based training; automated exam generation; course, instructor, and facility evaluation information; and automated course scheduling.

Page, C.; Winn, M.

1991-01-01T23:59:59.000Z

58

V-185: Apache OpenOffice SDK Oracle Java JavaDoc Spoofing Vulnerabilit...  

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

ASSESSMENT: Medium DISCUSSION: The vulnerability is caused due to a UDK 3.2.7 Java API Reference JavaDoc file having been generated using a vulnerable version of Oracle Java....

59

Best Practices for Planned Maintenance.......................................... 10 Best Practices for Maximum ROI...................................................... 10 Best Practices for Migrating to Sun Oracle Database Machine........ 11 Best Practic  

E-Print Network (OSTI)

Sun Oracle Database Machine provides an optimal solution for all database workloads, ranging from scan-intensive data warehouse applications to highly concurrent OLTP applications. With its combination of smart Oracle Exadata Storage Server Software, complete and intelligent Oracle Database software, and the latest industry standard hardware components from Sun, the Database Machine delivers extreme performance in a highly available and highly secure environment. Oracle Data Guard is Oracle抯 disaster recovery solution prescribed by the Maximum Availability Architecture (MAA) to protect mission critical databases residing on Sun Oracle Database Machine and the Exadata Storage Server. Using Data Guard is also the MAA best practice for minimizing planned downtime by upgrading the Oracle Database in a rolling fashion. Data Guard is included with Oracle Database Enterprise Edition and provides the management, monitoring, and automation software to create and maintain one or more synchronized standby databases that protect data from failures, disasters, errors, and

Data Guard; Sun Oracle; Database Machine

2010-01-01T23:59:59.000Z

60

Florence & Oracle Junction, Pinal County, AZ, RECORD OF CATEGORICAL EXCLUSION DETERMINATION  

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

emergency wood pole emergency wood pole replacement at 59 structures located along the Coolidge-Oracle 115-kV T.L. , near Cooiidge, Florence & Oracle Junction, Pinal County, AZ, RECORD OF CATEGORICAL EXCLUSION DETERMINATION A. Proposed Action: Western plans to replace deteriorated wood poles, cross arms and X-braces at 59 existing H-frame or 3-pole-turning structures (Table 1) located along the Coolidge-Oracle 115-kV Transmission Line in Pinal County, Arizona (Figure 1), Built in 1943, its aging components are beyond repair and require replacement. These poles performed poorly during structural tests, and we consider them unstable, This project ensures the safety of Western's workers and the public as well as reliability of the bulk electric system, Western will accomplish the work by clearing vegetation and blading a level pad at

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


61

Oracle scheduling: controlling granularity in implicitly parallel languages  

Science Conference Proceedings (OSTI)

A classic problem in parallel computing is determining whether to execute a task in parallel or sequentially. If small tasks are executed in parallel, the task-creation overheads can be overwhelming. If large tasks are executed sequentially, processors ... Keywords: granularity control, scheduling, work stealing

Umut A. Acar; Arthur Chargu閞aud; Mike Rainey

2011-10-01T23:59:59.000Z

62

This document describes how to provision Oracle WebLogic Server on Oracle Database Appliance releases 2.5 and 2.6.Oracle Database Appliance Using Oracle WebLogic Server on Oracle Database Appliance, Release 2.6 for Linux x86-64  

E-Print Network (OSTI)

This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software " pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating system, integrated software, any programs installed on

unknown authors

2013-01-01T23:59:59.000Z

63

Test-State Approach to the Quantum Search Problem  

E-Print Network (OSTI)

The search for "a quantum needle in a quantum haystack" is a metaphor for the problem of finding out which one of a permissible set of unitary mappings---the oracles---is implemented by a given black box. Grover's algorithm solves this problem with quadratic speed-up as compared with the analogous search for "a classical needle in a classical haystack." Since the outcome of Grover's algorithm is probabilistic---it gives the correct answer with high probability, not with certainty---the answer requires verification. For this purpose we introduce specific test states, one for each oracle. These test states can also be used to realize "a classical search for the quantum needle" which is deterministic---it always gives a definite answer after a finite number of steps---and faster by a factor of 3.41 than the purely classical search. Since the test-state search and Grover's algorithm look for the same quantum needle, the average number of oracle queries of the test-state search is the classical benchmark for Grover's algorithm.

Arun Sehrawat; Le Huy Nguyen; Berthold-Georg Englert

2011-02-17T23:59:59.000Z

64

Test-state approach to the quantum search problem  

Science Conference Proceedings (OSTI)

The search for 'a quantum needle in a quantum haystack' is a metaphor for the problem of finding out which one of a permissible set of unitary mappings - the oracles - is implemented by a given black box. Grover's algorithm solves this problem with quadratic speedup as compared with the analogous search for 'a classical needle in a classical haystack'. Since the outcome of Grover's algorithm is probabilistic - it gives the correct answer with high probability, not with certainty - the answer requires verification. For this purpose we introduce specific test states, one for each oracle. These test states can also be used to realize 'a classical search for the quantum needle' which is deterministic - it always gives a definite answer after a finite number of steps - and 3.41 times as fast as the purely classical search. Since the test-state search and Grover's algorithm look for the same quantum needle, the average number of oracle queries of the test-state search is the classical benchmark for Grover's algorithm.

Sehrawat, Arun [Centre for Quantum Technologies, National University of Singapore, Singapore 117543 (Singapore); Nguyen, Le Huy [Centre for Quantum Technologies, National University of Singapore, Singapore 117543 (Singapore); Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117597 (Singapore); Englert, Berthold-Georg [Centre for Quantum Technologies, National University of Singapore, Singapore 117543 (Singapore); Department of Physics, National University of Singapore, Singapore 117542 (Singapore)

2011-05-15T23:59:59.000Z

65

An Improved Query for the Hidden Subgroup Problem  

E-Print Network (OSTI)

An equal superposition query with |0> in the response register is used in the "standard method" of single-query algorithms for the hidden subgroup problem (HSP). Here we introduce a different query, the character query, generalizing the well-known phase kickback trick. This query maximizes the success probability of subgroup identification under a uniform prior, for the HSP in which the oracle functions take values in a finite abelian group. We then apply our results to the case when the subgroups are drawn from a set of conjugate subgroups and obtain a success probability greater than that found by Moore and Russell.

Asif Shakeel

2011-01-05T23:59:59.000Z

66

Oracle BI Answers  

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

March 22, 2013" March 22, 2013" "Program Office Name","Place of Performance State","DOE Project Name","Awardee Name","Place of Performance City","Total Awarded","Total Outlaid","Award Date" "Advanced Research Projects Agency - Energy","AL-ALABAMA","Program Direction - ARPA -E","NASA/GEORGE C MARSHALL SPACE FLIGHT CENTER","HUNTSVILLE",114296.21,114296.21,40451 "Advanced Research Projects Agency - Energy","AZ-ARIZONA","Advanced Research Projects Agency - Energy (ARPA-E)","ARIZONA STATE UNIVERSITY","TEMPE",5133150,5132329.44,40163 "Advanced Research Projects Agency - Energy","AZ-ARIZONA","Advanced Research Projects Agency - Energy (ARPA-E)","ARIZONA STATE UNIVERSITY","TEMPE",5205706,5205706,40169

67

Oracle BI Answers  

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

July 22, 2011" July 22, 2011" "Program Office Name","Place of Performance State","DOE Project Name","Awardee Name","Place of Performance City","Total Awarded","Total Outlaid","Award Date" "Advanced Research Projects Agency - Energy","AL-ALABAMA","Program Direction - ARPA -E","NASA/GEORGE C MARSHALL SPACE FLIGHT CENTER","HUNTSVILLE",114296,114296,"application/vnd.ms-excel" "Advanced Research Projects Agency - Energy","AZ-ARIZONA","Advanced Research Projects Agency - Energy (ARPA-E)","ARIZONA STATE UNIVERSITY","TEMPE",5133150,2260718,"application/vnd.ms-excel"

68

Common Air Conditioner Problems | Department of Energy  

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

Common Air Conditioner Problems Common Air Conditioner Problems Common Air Conditioner Problems May 30, 2012 - 6:41pm Addthis A refrigerant leak is one common air conditioning problem. | Photo courtesy of 脗漏iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of 漏iStockphoto/BanksPhotos. What does this mean for me? You can eliminate the most common air conditioner problems before hiring an air conditioning technician. You can do some air conditioner maintenance and repair tasks yourself. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

69

Common Air Conditioner Problems | Department of Energy  

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

Common Air Conditioner Problems Common Air Conditioner Problems Common Air Conditioner Problems May 30, 2012 - 6:41pm Addthis A refrigerant leak is one common air conditioning problem. | Photo courtesy of 脗漏iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of 漏iStockphoto/BanksPhotos. What does this mean for me? You can eliminate the most common air conditioner problems before hiring an air conditioning technician. You can do some air conditioner maintenance and repair tasks yourself. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

70

Utilizing ORACLE tools within Unix  

SciTech Connect

Large databases, by their very nature, often serve as repositories of data which may be needed by other systems. The transmission of this data to other systems has in the past involved several layers of human intervention. The Integrated Cargo Data Base (ICDB) developed by Martin Marietta Energy Systems for the Military Traffic Management Command as part of the Worldwide Port System provides data integration and worldwide tracking of cargo that passes through common-user ocean cargo ports. One of the key functions of ICDB is data distribution of a variety of data files to a number of other systems. Development of automated data distribution procedures had to deal with the following constraints: (1) variable generation time for data files, (2) use of only current data for data files, (3) use of a minimum number of select statements, (4) creation of unique data files for multiple recipients, (5) automatic transmission of data files to recipients, and (6) avoidance of extensive and long-term data storage.

Ferguson, R.

1995-07-01T23:59:59.000Z

71

Tackling Energy Problems For America's Tribal Nations | Department of  

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

Tackling Energy Problems For America's Tribal Nations Tackling Energy Problems For America's Tribal Nations Tackling Energy Problems For America's Tribal Nations June 20, 2012 - 6:07pm Addthis Julia Bovey, First Wind; Tracey LeBeau; Neil Kiely, First Wind; and Bob Springer (NREL) at First Wind's new Rollins project near Lincoln, Maine. Julia Bovey, First Wind; Tracey LeBeau; Neil Kiely, First Wind; and Bob Springer (NREL) at First Wind's new Rollins project near Lincoln, Maine. Tracey A. LeBeau Director, Office of Indian Energy Policy & Programs What Is START? It provides tribal communities with technical assistance to accelerate clean energy project development. Helps to advance energy self-sufficiency. And creates jobs across the country. At the Tribal Nations Conference last December, President Obama noted that

72

cutting stock problem  

Science Conference Proceedings (OSTI)

NIST. cutting stock problem. (classic problem). Definition: Find the best arrangement of shapes on rectangles to minimize ...

2013-08-23T23:59:59.000Z

73

Security - Problem Solved?  

Science Conference Proceedings (OSTI)

There are plenty of security problems that have solutions. Yet, our security problems don't seem to be going away. What's wrong here?

John Viega

2005-06-01T23:59:59.000Z

74

A practical oracle for sequential code parallelization  

E-Print Network (OSTI)

pipeline parallelism, expressed in (a) as a DOACROSS loop. In this example, a cross-iteration dependency length

Garcia, Saturnino; Garcia, Saturnino

2012-01-01T23:59:59.000Z

75

Oracle at Trec8: A Lexical Approach  

Science Conference Proceedings (OSTI)

... CATEGORY: rail transportation Conrail, Incorporated Amtrak Association of American Railroads Norfolk Southern Corporation Southern Pacific ...

2000-02-08T23:59:59.000Z

76

This file was created by Oracle Reports  

Science Conference Proceedings (OSTI)

... 2007. Seattle-Tacoma-Olympia, WA. SCIENTIFIC AND. ENGINEERING. ... 67,885 - 69,921. Seattle-Tacoma-Olympia, WA. Seattle-Tacoma-Olympia, WA ...

2012-05-02T23:59:59.000Z

77

Plastics' Color Problem: How a New Device Will Prevent Waste | Department  

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

Plastics' Color Problem: How a New Device Will Prevent Waste Plastics' Color Problem: How a New Device Will Prevent Waste Plastics' Color Problem: How a New Device Will Prevent Waste July 22, 2010 - 3:20pm Addthis This is a probe for use in an extruder, similar to the one being developed by Guided Wave of Rancho Cordova, Calif. | Photo courtesy of Guided Wave. This is a probe for use in an extruder, similar to the one being developed by Guided Wave of Rancho Cordova, Calif. | Photo courtesy of Guided Wave. What are the key facts? Commercial plastics made at 752 degrees Fahrenheit and 2,000 psi Conventional plastic color detectors break at high temps and pressures Plastics with incorrect colors, require rerunning production - wasting energy $250,000 DOE grant to support development of improved probe Color can make or break commercial plastics. And commercial or extruded

78

V-143: Fresh Java issues being exploited in the wild | Department of Energy  

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

3: Fresh Java issues being exploited in the wild 3: Fresh Java issues being exploited in the wild V-143: Fresh Java issues being exploited in the wild April 26, 2013 - 6:00am Addthis PROBLEM: A new Metasploit module for the Java 7u17 sandbox bypass emerged PLATFORM: All versions of Java SE-7 (including the recently released 1.7.0_21-b11) ABSTRACT: Java issues are being exploited in the wild by exploit kits, with Cool and Redkit specifically being known to use these bugs, and others likely to follow shortly. REFERENCE LINKS: SecList SE-2012-01 Security Explorations IMPACT ASSESSMENT: Medium DISCUSSION: It can be used to achieve a complete Java security sandbox bypass on a target system. IMPACT: Manipulation of data System access SOLUTION: Vendor recommends patch systems immediately Addthis Related Articles V-142: Oracle Java Reflection API Flaw Lets Remote Users Execute Arbitrary

79

Symmetry in Scheduling Problems  

E-Print Network (OSTI)

Nov 16, 2010 ... 2 Problem Symmetry and Fundamental Domains ...... Handbook of Computational Group Theory (Discrete Mathematics and Its Applica- tions).

80

Troubleshoot HRSG corrosion problems  

SciTech Connect

Heat-recovery steam generators (HRSGs) have come of age. At the same time, these boilers are more complex as designs are refined to maximize heat recovery. Hundreds of units are installed and now have years of operating experience providing valuable information that can benefit all HRSG owners. Experienced troubleshooters can anticipate potential problem areas and recommend cost-effective solutions. The HRSG corrosion problems summarized here--and the means by which they were identified and solved--are useful examples to alert other HRSG owners and operators to potential problem areas. Steps involved include thorough inspection and documentation, problem and cost/benefit analyses, and planning around outages.

Stanley, L.

1996-07-01T23:59:59.000Z

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


81

Drinking Water Problems: Copper  

E-Print Network (OSTI)

High levels of copper in drinking water can cause health problems. This publication explains the effects of copper in water and methods of removing it. 4 pp.

Dozier, Monty; McFarland, Mark L.; Lesikar, Bruce J.

2006-01-25T23:59:59.000Z

82

ITOUGH2 sample problems  

DOE Green Energy (OSTI)

This report contains a collection of ITOUGH2 sample problems. It complements the ITOUGH2 User`s Guide [Finsterle, 1997a], and the ITOUGH2 Command Reference [Finsterle, 1997b]. ITOUGH2 is a program for parameter estimation, sensitivity analysis, and uncertainty propagation analysis. It is based on the TOUGH2 simulator for non-isothermal multiphase flow in fractured and porous media [Preuss, 1987, 1991a]. The report ITOUGH2 User`s Guide [Finsterle, 1997a] describes the inverse modeling framework and provides the theoretical background. The report ITOUGH2 Command Reference [Finsterle, 1997b] contains the syntax of all ITOUGH2 commands. This report describes a variety of sample problems solved by ITOUGH2. Table 1.1 contains a short description of the seven sample problems discussed in this report. The TOUGH2 equation-of-state (EOS) module that needs to be linked to ITOUGH2 is also indicated. Each sample problem focuses on a few selected issues shown in Table 1.2. ITOUGH2 input features and the usage of program options are described. Furthermore, interpretations of selected inverse modeling results are given. Problem 1 is a multipart tutorial, describing basic ITOUGH2 input files for the main ITOUGH2 application modes; no interpretation of results is given. Problem 2 focuses on non-uniqueness, residual analysis, and correlation structure. Problem 3 illustrates a variety of parameter and observation types, and describes parameter selection strategies. Problem 4 compares the performance of minimization algorithms and discusses model identification. Problem 5 explains how to set up a combined inversion of steady-state and transient data. Problem 6 provides a detailed residual and error analysis. Finally, Problem 7 illustrates how the estimation of model-related parameters may help compensate for errors in that model.

Finsterle, S.

1997-11-01T23:59:59.000Z

83

Finance Reporting Oracle Business Intelligence EnterpriseOracle Business Intelligence Enterprise  

E-Print Network (OSTI)

to information management, business intelligence and performance measurement activities (such as developing and providing "business intelligence" solutions to attend to information needs are new to our campus. Since we. 路 implementing "business intelligence" solutions that allow us to obtain the most value from our information

de la Torre, Jos茅 R.

84

Corrosion Problems and Solutions  

Science Conference Proceedings (OSTI)

Table 5聽聽聽Typical deaerator corrosion problems...General corrosion of vessels and piping GC Layup, CH V, high iron in feedwater None N/A (a) CF, corrosion fatigue;

85

Swaging Problems and Solutions  

Science Conference Proceedings (OSTI)

Table 5聽聽聽Some swaging problems, potential causes, and possible solutions...causes Solutions Difficult feeding Work material too hard Anneal or stress relieve to remove effects of cold

86

The Magnetotelluric Inverse Problem  

E-Print Network (OSTI)

15721592. Banks, R. , 1969: Geomagnetic variations and theThe inverse problem in geomagnetic induction. Z. Geophys. ,sound inferences from geomagnetic sounding, doi:10.1016/j.

Medin, Ashley E

2008-01-01T23:59:59.000Z

87

The magnetotelluric inverse problem  

E-Print Network (OSTI)

15721592. Banks, R. , 1969: Geomagnetic variations and theThe inverse problem in geomagnetic induction. Z. Geophys. ,sound inferences from geomagnetic sounding, doi:10.1016/j.

Medin, Ashley E.

2008-01-01T23:59:59.000Z

88

Hydrostatic Adjustment: Lamb's Problem  

Science Conference Proceedings (OSTI)

The prototype problem of hydrostatic adjustment for large-scale atmospheric motions is Presented. When a horizontally infinite layer of compressible fluid, initially at rest, is instantaneously heated, the fluid is no longer in hydrostatic ...

Peter R. Bannon

1995-05-01T23:59:59.000Z

89

The Sedov Test Problem  

SciTech Connect

The Sedov test is classically defined as a point blast problem. The Sedov problem has led us to advances in algorithms and in their understanding. Vorticity generation can be physical or numerical. Both play a role in Sedov calculations. The RAGE code (Eulerian) resolves the shock well, but produces vorticity. The source definition matters. For the FLAG code (Lagrange), CCH is superior to SGH by avoiding spurious vorticity generation. FLAG SGH currently has a number of options that improve results over traditional settings. Vorticity production, not shock capture, has driven the Sedov work. We are pursuing treatments with respect to the hydro discretization as well as to artificial viscosity.

Fung, Jimmy [Los Alamos National Laboratory; Masser, Thomas [Los Alamos National Laboratory; Morgan, Nathaniel R. [Los Alamos National Laboratory

2012-06-25T23:59:59.000Z

90

Solving quantified constraint satisfaction problems  

Science Conference Proceedings (OSTI)

We make a number of contributions to the study of the Quantified Constraint Satisfaction Problem (QCSP). The QCSP is an extension of the constraint satisfaction problem that can be used to model combinatorial problems containing contingency or uncertainty. ... Keywords: Arc consistency, Quantified Boolean formulas, Quantified constraint satisfaction problems, Random problems, Search algorithms

Ian P. Gent; Peter Nightingale; Andrew Rowley; Kostas Stergiou

2008-04-01T23:59:59.000Z

91

Drinking Water Problems: Radionuclides  

E-Print Network (OSTI)

Radionuclides in drinking water can cause serious health problems for people. This publication explains what the sources of radionuclides in water are, where high levels have been found in Texas, how they affect health and how to treat water to remove them.

Lesikar, Bruce J.; Melton, Rebecca; Hare, Michael; Hopkins, Janie; Dozier, Monty

2006-08-04T23:59:59.000Z

92

Pemex: Problems and Policy Options  

E-Print Network (OSTI)

American Studies University of California, Berkeley Pemex: Problems and Policy Options David Shields Independent Energy

Shields, David

2006-01-01T23:59:59.000Z

93

Solving the Fast Clock Problem  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study troubleshoots then solves the problem of digital clocks running fast.

2003-12-31T23:59:59.000Z

94

Problem 2-Lexicographic Order  

E-Print Network (OSTI)

Problem: For complex numbers z = a + bi ? C and w = c + di ? C define 攝 ? w if either a ordering of C. (Question I) Prove that this turns C into and ordered set. (Question II) Is this an ordered field? (no) (Question III) Does it have the least-upper-bound property? (no) We will first review the definitions of order and ordered set from Rudin [R]. We will then show that under the lexicographic ordering C is an ordered set. Definition 1. Let S be a set. An order on S is a relation, denoted by ?, with the following two properties: (i) If x ? S and y ? S then one and only one of the statements is true. x ? y, x = y, y ? x (ii) If x, y, z ? S, if x ? y and y ? z, then x ? z.

Jacob Bower

2008-01-01T23:59:59.000Z

95

Kolkata Restaurant Problem as a generalised El Farol Bar Problem  

E-Print Network (OSTI)

Generalisation of the El Farol bar problem to that of many bars here leads to the Kolkata restaurant problem, where the decision to go to any restaurant or not is much simpler (depending on the previous experience of course, as in the El Farol bar problem). This generalised problem can be exactly analysed in some limiting cases discussed here. The fluctuation in the restaurant service can be shown to have precisely an inverse cubic behavior, as widely seen in the stock market fluctuations.

Chakrabarti, Bikas K

2007-01-01T23:59:59.000Z

96

Applying problem-structuring methods to problems in computer security  

Science Conference Proceedings (OSTI)

Solutions to security problems, particularly ones involving cryptography, have typically been approached through the Inside-Out Threat Model, "this is our solution and whatever it addresses is the threat". Email encryption/signing and SSL/TLS are two ... Keywords: problem-structuring methods, soft operations research, soft systems methodology, wicked problems

Peter Gutmann

2011-09-01T23:59:59.000Z

97

TA Orientation 2005 Activity 6 Problem Solving: Cowboy Bob Problem  

E-Print Network (OSTI)

TA Orientation 2005 Activity 6 Problem Solving: Cowboy Bob Problem Page 61 Below is a problem from the outlaws. #12;TA Orientation 2005 Activity 6 (continued) Page 62 Notes: #12;TA Orientation 2005 Activity 7. #12;TA Orientation 2005 Activity 7 (continued) Page 64 Answer Sheet for Activity 7 1. Examine your

Minnesota, University of

98

Optimal control problems, curves of pursuit.  

E-Print Network (OSTI)

??We study a class of problems known as pursuit-evasion problems (PE). These problems can be understood as special cases of optimal control problems. After describing (more)

Moiseeva, Svetlana

2011-01-01T23:59:59.000Z

99

Two problems in Classical Mechanics  

E-Print Network (OSTI)

A problem about the present structure of dimensional analysis, and another one about the differences between solids and fluids are suggested. Both problems appear to have certain foundational aspects.

E. E. Rosinger

2004-07-09T23:59:59.000Z

100

Hospitals - Medical - Backup Generator Problems  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents the investigation of problems while testing a backup generator at a hospital.

2003-12-31T23:59:59.000Z

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


101

Problem frames and software engineering  

Science Conference Proceedings (OSTI)

A general account is given of the problem frames approach to the development of software-intensive systems, assuming that the reader is already familiar with its basic ideas. The approach is considered in the light of the long-standing aspiration of ... Keywords: Problem frame, Problems, Software

Michael Jackson

2005-11-01T23:59:59.000Z

102

Anglers' fishing problem  

E-Print Network (OSTI)

The considered model will be formulated as related to "the fishing problem" even if the other applications of it are much more obvious. The angler goes fishing. He uses various techniques and he has at most two fishing rods. He buys a fishing ticket for a fixed time. The fishes are caught with the use of different methods according to the renewal processes. The fishes' value and the inter arrival times are given by the sequences of independent, identically distributed (i.i.d.) random variables with the known distribution functions. It forms the marked renewal--reward process. The angler's measure of satisfaction is given by the difference between the utility function, depending on the value of the fishes caught, and the cost function connected with the time of fishing. In this way, the angler's relative opinion about the methods of fishing is modelled. The angler's aim is to have as much satisfaction as possible and additionally he has to leave the lake before a fixed moment. Therefore his goal is to find two...

Karpowicz, Anna

2011-01-01T23:59:59.000Z

103

The Consent Problem in International Law  

E-Print Network (OSTI)

nuclear weapons. More problems implicating more people make the consent problem more complex

Guzman, Andrew

2011-01-01T23:59:59.000Z

104

V-235: Cisco Mobility Services Engine Configuration Error Lets Remote Users  

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

5: Cisco Mobility Services Engine Configuration Error Lets 5: Cisco Mobility Services Engine Configuration Error Lets Remote Users Login Anonymously V-235: Cisco Mobility Services Engine Configuration Error Lets Remote Users Login Anonymously September 5, 2013 - 12:33am Addthis PROBLEM: A vulnerability was reported in Cisco Mobility Services Engine. A remote user can login anonymously. PLATFORM: Cisco Mobility Services Engine ABSTRACT: A vulnerability in Cisco Mobility Services Engine could allow an unauthenticated, remote attacker to connect to a database replication port anonymously via Secure Sockets Layer (SSL). REFERENCE LINKS: SecurityTracker Alert ID: 1028972 CVE-2013-3469 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is due to the misconfiguration of the Oracle SSL service. An attacker could exploit this vulnerability by connecting to an

105

T-606: Sun Java System Access Manager Lets Remote Users Partially Modify  

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

06: Sun Java System Access Manager Lets Remote Users Partially 06: Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data T-606: Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data April 20, 2011 - 3:58am Addthis PROBLEM: Two vulnerabilities were reported in Sun Java System Access Manager. A remote authenticated user can partially access data on the target system. A remote user can partially modify data on the target system. PLATFORM: Sun Java versions 7.1, 8.0 ABSTRACT: Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data. reference LINKS: SecurityTracker Alert ID: 1025408 CVE-2011-0844 CVE-2011-0847 Oracle Critical Patch Update Advisory

106

Pooling problems: relaxations and discretizations  

E-Print Network (OSTI)

The classical minimum cost network flow problem seeks to find the optimal way of sending ... The front-end scheduling, also referred to as the crude oil operation.

107

Moods, wicked problems, and learning  

Science Conference Proceedings (OSTI)

Wicked problems and learning environments present tough mood challenges for leaders and teachers. Telepresence and sensory gadgets are unlikely to replace physical presence in these areas.

Peter J. Denning

2013-03-01T23:59:59.000Z

108

Problems in High Energy Astrophysics  

E-Print Network (OSTI)

This contribution discusses some of the main problems in high energy astrophysics, and the perspectives to solve them using different types of "messengers": cosmic rays, photons and neutrinos

Lipari, Paolo

2008-01-01T23:59:59.000Z

109

Problems in High Energy Astrophysics  

E-Print Network (OSTI)

This contribution discusses some of the main problems in high energy astrophysics, and the perspectives to solve them using different types of "messengers": cosmic rays, photons and neutrinos

Paolo Lipari

2008-08-04T23:59:59.000Z

110

Hedging Problems with Stochastic Parameters  

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

the problems of quadratic hedging and mean-variance portfolio selection in an incomplete market with continuous trading, multiple assets, and Brownian information. In particular,...

111

The Split Variational Inequality Problem  

E-Print Network (OSTI)

Sep 20, 2010 ... lines of research related to our notion of the CVIP. ...... Imaging, Therapy Planning and Inverse Problems, Medical Physics Pub# lishing...

112

The underwater radiance distribution problem  

E-Print Network (OSTI)

THE UNDERWATER RADIANCE DISTRIBUTION PROBLEM S. Q. DuntleyFunction of Depth in an Underwater Environment," which firsta Function of Depth in an Underwater Environment," which has

Duntley, Seibert Q

1959-01-01T23:59:59.000Z

113

Boundary stabilization of transmission problems  

E-Print Network (OSTI)

We study the transmission problem in bounded domains with dissipative boundary conditions. Under some natural assumptions, we prove uniform bounds of the corresponding resolvents on the real axis at high frequency, and as a consequence, we obtain free of eigenvalues regions. As an application, we get exponential decay of the energy of the solutions of the correpsonding mixed boundary value problems.

Fernando Cardoso; Georgi Vodev

2009-10-20T23:59:59.000Z

114

Proximal-ACCPM: a versatile oracle based optimization method  

E-Print Network (OSTI)

Oct 26, 2004 ... air quality model and a techno-economic model of energy choices in ... peaks in green areas. .... MARKAL-Geneva: A model to assess energy-.

115

Information-theoretic lower bounds on the oracle complexity of ...  

E-Print Network (OSTI)

Sep 2, 2010 ... A large body of literature is devoted to obtaining rates of ..... result that demonstrates the utility of maintaining a separation under ? among...

116

Oracle at Trec8: A Lexical Approach1  

Science Conference Proceedings (OSTI)

... Conrail, Incorporated Amtrak Association of American Railroads Norfolk Southern Corporation Southern Pacific Union Pacific Corporation ...

2000-02-04T23:59:59.000Z

117

Prices in USA (Dollar) Oracle Technology Global Price List  

E-Print Network (OSTI)

, business intelligence and portfolio management. #12; University, Pennsylvania State University and Virginia Tech, joined a major industrial firm to pursue each campus in the United States is in Pittsburgh, Pa. It has campuses in California's Silicon Valley

118

LEVEL BUNDLE METHODS FOR ORACLES WITH ON-DEMAND ...  

E-Print Network (OSTI)

A numerical benchmark on a battery .... methods to a battery of two-stage stochastic linear programs found in the literature. .... ministic second-stage cost. In such...

119

Spreadsheet modelling for solving combinatorial problems: The vendor selection problem  

E-Print Network (OSTI)

Spreadsheets have grown up and became very powerful and easy to use tools in applying analytical techniques for solving business problems. Operations managers, production managers, planners and schedulers can work with them in developing solid and practical Do-It-Yourself Decision Support Systems. Small and Medium size organizations, can apply OR methodologies without the presence of specialized software and trained personnel, which in many cases cannot afford anyway. This paper examines an efficient approach in solving combinatorial programming problems with the use of spreadsheets. A practical application, which demonstrates the approach, concerns the development of a spreadsheet-based DSS for the Multi Item Procurement Problem with Fixed Vendor Cost. The DSS has been build using exclusively standard spreadsheet feature and can solve real problems of substantial size. The benefits and limitations of the approach are also discussed.

Ipsilandis, Pandelis G

2008-01-01T23:59:59.000Z

120

Inverse Problems in Heat Transfer  

E-Print Network (OSTI)

This chapter presents a stochastic modeling and statistical inference approach to the solution of inverse problems in thermal transport systems. Of particular interest is the inverse heat conduction problem (IHCP) of estimating an unknown boundary heat flux in a conducting solid given temperature data within the domain. Even though deterministic sequential and whole time domain estimation methods have been applied with success over the years for the solution of such problems, we herein introduce stochastic approaches to representing and solving the IHCP. As most engineering systems and processes operate in an uncertain environment, it becomes increasingly important to address their analysis and inverse design in a stochastic manner using statistical data-driven prior and concurrent information on the system response. Recent advances in spectral stochastic modeling, computational Bayesian and spatial statistics enable complete and e#cient solution procedures to such problems. Two distinct approaches to the IHCP are presented in this chapter one based on spectral stochastic modeling and the other on Bayesian inference. Although these techniques are discussed in the context of the IHCP, the methodologies presented are general and applicable to design and estimation problems in other more complex problems in thermal transport systems including problems in the presence of convection, radiation and conduction. 1

Nicholas Zabaras

2004-01-01T23:59:59.000Z

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


121

Parallel solution of recurrence problems  

Science Conference Proceedings (OSTI)

An mth-order recurrence problem is defined as the computation of the sequence x1,..., xN, where x1 = f(ai, xi-1,...,xi-m), ...

P. M. Kogge

1974-03-01T23:59:59.000Z

122

Connectivity problem in wireless networks  

Science Conference Proceedings (OSTI)

We study the complexity of the following connectivity problem in wireless networks: for a given placement of n nodes in the plane, the goal is to compute a channel and power assignment that forms strongly connected communication structure spanning ...

Dariusz R. Kowalski; Mariusz A. Rokicki

2010-09-01T23:59:59.000Z

123

Surrogate Guderley Test Problem Definition  

SciTech Connect

The surrogate Guderley problem (SGP) is a 'spherical shock tube' (or 'spherical driven implosion') designed to ease the notoriously subtle initialization of the true Guderley problem, while still maintaining a high degree of fidelity. In this problem (similar to the Guderley problem), an infinitely strong shock wave forms and converges in one-dimensional (1D) cylindrical or spherical symmetry through a polytropic gas with arbitrary adiabatic index {gamma}, uniform density {rho}{sub 0}, zero velocity, and negligible pre-shock pressure and specific internal energy (SIE). This shock proceeds to focus on the point or axis of symmetry at r = 0 (resulting in ostensibly infinite pressure, velocity, etc.) and reflect back out into the incoming perturbed gas.

Ramsey, Scott D. [Los Alamos National Laboratory; Shashkov, Mikhail J. [Los Alamos National Laboratory

2012-07-06T23:59:59.000Z

124

Mathematical Problems of Thermoacoustic Tomography  

E-Print Network (OSTI)

Thermoacoustic tomography (TAT) is a newly emerging modality in biomedical imaging. It combines the good contrast of electromagnetic and good resolution of ultrasound imaging. The mathematical model of TAT is the observability problem for the wave equation: one observes the data on a hyper-surface and reconstructs the initial perturbation. In this dissertation, we consider several mathematical problems of TAT. The first problem is the inversion formulas. We provide a family of closed form inversion formulas to reconstruct the initial perturbation from the observed data. The second problem is the range description. We present the range description of the spherical mean Radon transform, which is an important transform in TAT. The next problem is the stability analysis for TAT. We prove that the reconstruction of the initial perturbation from observed data is not H╫lder stable if some observability condition is violated. The last problem is the speed determination. The question is whether the observed data uniquely determines the ultrasound speed and initial perturbation. We provide some initial results on this issue. They include the unique determination of the unknown constant speed, a weak local uniqueness, a characterization of the non-uniqueness, and a characterization of the kernel of the linearized operator.

Nguyen, Linh V.

2010-08-01T23:59:59.000Z

125

The Consistent Vehicle Routing Problem  

SciTech Connect

In the small package shipping industry (as in other industries), companies try to differentiate themselves by providing high levels of customer service. This can be accomplished in several ways, including online tracking of packages, ensuring on-time delivery, and offering residential pickups. Some companies want their drivers to develop relationships with customers on a route and have the same drivers visit the same customers at roughly the same time on each day that the customers need service. These service requirements, together with traditional constraints on vehicle capacity and route length, define a variant of the classical capacitated vehicle routing problem, which we call the consistent VRP (ConVRP). In this paper, we formulate the problem as a mixed-integer program and develop an algorithm to solve the ConVRP that is based on the record-to-record travel algorithm. We compare the performance of our algorithm to the optimal mixed-integer program solutions for a set of small problems and then apply our algorithm to five simulated data sets with 1,000 customers and a real-world data set with more than 3,700 customers. We provide a technique for generating ConVRP benchmark problems from vehicle routing problem instances given in the literature and provide our solutions to these instances. The solutions produced by our algorithm on all problems do a very good job of meeting customer service objectives with routes that have a low total travel time.

Groer, Christopher S [ORNL; Golden, Bruce [University of Maryland; Edward, Wasil [American University

2009-01-01T23:59:59.000Z

126

Key-Based Problem Decomposition for Relational Constraint Satisfaction Problems  

Science Conference Proceedings (OSTI)

Constraint satisfaction problems (CSP) are often posed over data residing in relational database systems, which serve as passive data-storage back ends. Several studies have demonstrated a number of important advantages to having database systems capable ... Keywords: constraint processing, databases, decomposition

James J. Lu; Sebastien Siva

2011-11-01T23:59:59.000Z

127

Steam Boiler Control Specification Problem:  

E-Print Network (OSTI)

Our solution to the specification problem in the specification language TLA+ is based on a model of operation where several components proceed synchronously. Our first specification concerns a simplified controller and abstracts from many details given in the informal problem description. We successively add modules to build a model of the state of the steam boiler, detect failures, and model message transmission. We give a more detailed controller specification and prove that it refines the abstract controller. We also address the relationship between the physical state of the steam boiler and the model maintained by the controller and discuss the reliability of failure detection. Finally, we discuss the implementability of our specification.

Tla Solution Frank; Frank Le Ke; Stephan Merz

1996-01-01T23:59:59.000Z

128

Exotic Species What's the Problem?  

E-Print Network (OSTI)

are estimated to cost about $138 billion in environmental damage and losses each year. Non-native plants $100 million annually in damage to water pipes and filtration systems, and in control costs. 路 Brown-300 power outages/yr, numerous bites of children, etc. #12;What's the Problem? 路 Melaleuca tree --destroyed

Callender, Craig

129

Inverse scattering problem with isobars  

SciTech Connect

The inverse scattering problem is solved for a covariant, isobar-dominated scattering amplitude (including inelasticity). Application is made to the ..pi..N P/sub 33/ channel, with the ..pi..N ..delta.. vertex function and isobar bare mass as results.

Londergan, J.T.; Moniz, E.J.

1977-08-01T23:59:59.000Z

130

Substation automation problems and possibilities  

SciTech Connect

The evolutionary growth in the use and application of microprocessors in substations has brought the industry to the point of considering integrated substation protection, control, and monitoring systems. An integrated system holds the promise of greatly reducing the design, documentation, and implementation cost for the substation control, protection, and monitoring systems. This article examines the technical development path and the present implementation problems.

Smith, H.L.

1996-10-01T23:59:59.000Z

131

Open Problems in $?$ Particle Condensation  

E-Print Network (OSTI)

$\\alpha$ particle condensation is a novel state in nuclear systems. We briefly review the present status on the study of $\\alpha$ particle condensation and address the open problems in this research field: $\\alpha$ particle condensation in heavier systems other than the Hoyle state, linear chain and $\\alpha$ particle rings, Hoyle-analogue states with extra neutrons, $\\alpha$ particle condensation related to astrophysics, etc.

Y. Funaki; M. Girod; H. Horiuchi; G. Roepke; P. Schuck; A. Tohsaki; T. Yamada

2010-03-05T23:59:59.000Z

132

The metro map layout problem  

Science Conference Proceedings (OSTI)

We initiate a new problem of automatic metro map layout. In general, a metro map consists of a set of lines which have intersections or overlaps. We define a set of aesthetic criteria for good metro map layouts and present a method to produce ...

Seok-Hee Hong; Damian Merrick; Hugo A. D. do Nascimento

2004-09-01T23:59:59.000Z

133

Drinking Water Problems: Radionuclides (Spanish)  

E-Print Network (OSTI)

Radionuclides in drinking water can cause serious health problems for people. This publication explains what the sources of radionuclides in water are, where high levels have been found in Texas, how they affect health and how to treat water to remove them.

Lesikar, Bruce J.; Melton, Rebecca; Hare, Michael; Hopkins, Janie; Dozier, Monty

2006-12-21T23:59:59.000Z

134

A nonlinear programming test problem  

Science Conference Proceedings (OSTI)

Figure 1 is a flow diagram of the chemical process. The test problem was a hydrocarbon refrigeration process in which the feed stream (stream number 1 of Figure 1) is a vapor mixture of ethane, propane, and n-butane (subscripts e, p and b, respectively) ...

D. M. Himmelblau

1979-07-01T23:59:59.000Z

135

Semidefinite Relaxations of Ordering Problems  

E-Print Network (OSTI)

Jan 19, 2011 ... The quadratic ordering problem does not seem to have attracted ... 2 Linear Ordering as a Linear Program in 0-1 variables .... Instead of the Lov醩z-Schrijver lifting procedure, ...... Review of Economics and Statistics, 18, 1936. ... IEEE Transactions on Systems, Man, and Cybernetics, 11(2):109125, 1981.

136

Statistical Inference in Inverse Problems  

E-Print Network (OSTI)

Inverse problems have gained popularity in statistical research recently. This dissertation consists of two statistical inverse problems: a Bayesian approach to detection of small low emission sources on a large random background, and parameter estimation methods for partial differential equation (PDE) models. Source detection problem arises, for instance, in some homeland security applications. We address the problem of detecting presence and location of a small low emission source inside an object, when the background noise dominates. The goal is to reach the signal-to-noise ratio levels on the order of 10^-3. We develop a Bayesian approach to this problem in two-dimension. The method allows inference not only about the existence of the source, but also about its location. We derive Bayes factors for model selection and estimation of location based on Markov chain Monte Carlo simulation. A simulation study shows that with sufficiently high total emission level, our method can effectively locate the source. Differential equation (DE) models are widely used to model dynamic processes in many fields. The forward problem of solving equations for given parameters that define the DEs has been extensively studied in the past. However, the inverse problem of estimating parameters based on observed state variables is relatively sparse in the statistical literature, and this is especially the case for PDE models. We propose two joint modeling schemes to solve for constant parameters in PDEs: a parameter cascading method and a Bayesian treatment. In both methods, the unknown functions are expressed via basis function expansion. For the parameter cascading method, we develop the algorithm to estimate the parameters and derive a sandwich estimator of the covariance matrix. For the Bayesian method, we develop the joint model for data and the PDE, and describe how the Markov chain Monte Carlo technique is employed to make posterior inference. A straightforward two-stage method is to first fit the data and then to estimate parameters by the least square principle. The three approaches are illustrated using simulated examples and compared via simulation studies. Simulation results show that the proposed methods outperform the two-stage method.

Xun, Xiaolei

2012-05-01T23:59:59.000Z

137

Matroids, secretary problems, and online mechanisms  

Science Conference Proceedings (OSTI)

We study a generalization of the classical secretary problem which we call the "matroid secretary problem". In this problem, the elements of a matroid are presented to an online algorithm in random order. When an element arrives, the algorithm observes ...

Moshe Babaioff; Nicole Immorlica; Robert Kleinberg

2007-01-01T23:59:59.000Z

138

CONSTRAINED BUNDLE METHODS FOR UPPER INEXACT ...  

E-Print Network (OSTI)

For the numerical experience of this paper we focus on a specific energy problem .... analysis of bundle methods with lower oracles is simpler, because it fits better ... using oracle information computed with some inaccuracy. ...... latter can either come from some price decomposition scheme ([5, 23, 37]) or from the market.

139

Annual Inventory Troubleshooting Checklist Problem Solutions  

E-Print Network (OSTI)

Annual Inventory Troubleshooting Checklist Problem Solutions Duplicate tag number Send email to am;Annual Inventory Troubleshooting Checklist Problem Solutions Personal property Send email to am

Li, Mo

140

Test instances for the traffic assignment problem  

E-Print Network (OSTI)

Test instances for the traffic assignment problem. F. Babonneau. ?. J.-P. Vial. ?. January 8, 2008. Abstract. This short note on the Traffic Assignment Problem...

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


141

An Oil Pipeline Design Problem  

Science Conference Proceedings (OSTI)

We consider a given set of offshore platforms and onshore wells producing known (or estimated) amounts of oil to be connected to a port. Connections may take place directly between platforms, well sites, and the port, or may go through connection points ... Keywords: Algorithms: interactive branch-and-bound with valid inequalities. industries, Applications: design problem-formulation and analysis. programming, Integer, Networks/graphs, Petroleum/natural gas: oil pipeline network design

Jack Brimberg; Pierre Hansen; Keh-Wei Lin; Nenad Mladenovic; Mich鑜e Breton

2003-03-01T23:59:59.000Z

142

On the equivalence of linear complementarity problems  

Science Conference Proceedings (OSTI)

We show that the Extended Linear Complementarity Problem (ELCP) can be recast as a standard Linear Complementarity Problem (LCP) provided that the surplus variables or the feasible set of the ELCP are bounded. Since many extensions of the LCP are special ... Keywords: Complementarity problems, Integer programming, Linear complementarity problem, Nonlinear algorithms, Optimization

B. De Schutter; W. P. M. H. Heemels; A. Bemporad

2002-08-01T23:59:59.000Z

143

An automata-theoretic approach for model-checking systems with unspecified components  

Science Conference Proceedings (OSTI)

This paper introduces a new approach for the verification of systems with unspecified components. In our approach, some model-checking problems concerning a component-based system are first reduced to the emptiness problem of an oracle finite automaton, ...

Gaoyan Xie; Zhe Dang

2004-09-01T23:59:59.000Z

144

Physics problems of thermonuclear reactors  

SciTech Connect

From topical conference on energy; Philadelphia, Pennsylvania, USA (Nov 1973). A problem common to all controlled fusion reactors is that of the burning deuterium --tritium fuel under conditions of plasma confinement which approach the ideal limit as nearly as possible. After ignitlon, the balance between alpha- particle energy deposition and plasma losses (radiation plus thermal and particle diffusion) determines the stability or instability of the burn in toroidal systems. Tokamak systems are described both with unstable, injection-regulated burn cycles and stabilized steady-state burn conditions. In the theta-pinch reactor an unstable burn occurs, some, what regulated by high-beta plasma expansion, which is quenched by a programmed plasma decompression. The plasma expansion during the constant-pressure burn provides direct'' conversion of plasma thermonuclear heat to electrical output, in addition to the electrical power derived from the neutron energy through conventional thermal conversion equipment. The open-ended mirror reactor is characterized by a direct conversion system for recovering end-loss plasma energy and converting it to electrical energy for reinjection into the plasma. This allows a favorable reactor energy balance and an amplification factor Q (= thermonuclear energy output/injected plasma energy) which is compatible with classical collisional losses. For the three reactor types considered the ramifications of burn and confinement conditions for reactor configuration, energy balance, economy, fuel handling, materials problems, and environmentalradiological factors are considered. (auth)

Ribe, F.L.

1974-01-01T23:59:59.000Z

145

The ANgel Problem, Positional Games, . . .  

E-Print Network (OSTI)

This thesis is about combinatorial games梞ostly. It is also about graphs, directed graphs and hypergraphs, to a large extent; and it deals with the complexity of certain computational problems from these two areas. We study three different problems that share several of the above aspects, yet, they form three individual subjects and so we treat them independently in three self-contained chapters: The angel-devil game. In the first chapter, we present improved strategies for an infinite game played on an infinite chess board, which has been introduced by Berlekamp, Conway, and Guy [8]. The angel, a chess person who jumps from square to square, tries to escape his opponent, the devil, who intends to strand the angel by placing obstacles on the board. The open question about this game is, whether some angel who is allowed to make sufficiently large but bounded steps in each move, will be able to escape forever. Conway [11] has shown that certain quite natural escape attempts are bound to fail.

Martin Kutz

2004-01-01T23:59:59.000Z

146

Virtual Human Problem Solving Environments  

SciTech Connect

Abstract. Interest in complex integrated digital or virtual human modeling has seen a significant increase over the last decade. Coincident with that increased interest, Oak Ridge National Laboratory (ORNL) initiated the development of a human simulation tool, the Virtual Human. The Virtual Human includes a problem-solving environment (PSE) for implementing the integration of physiological models in different programming languages and connecting physiological function to anatomy. The Virtual Human PSE (VHPSE) provides the computational framework with which to develop the concept of a "Virtual Human." Supporting the framework is a data definition for modeling parameters, PhysioML, a Virtual Human Database (VHDB), and a Web-based graphical user interface (GUI) developed using Java. Following description of the VHPSE, we discuss four example implementations of models within the framework. Further expansion of a human modeling environment was carried out in the Defense Advanced Research Projects Agency Virtual Soldier Project. SCIRun served as the Virtual Soldier problem solving environment (VSPSE). We review and compare specific developments in these projects that have significant potential for the future of Virtual Human modeling and simulation. We conclude with an evaluation of areas of future work that will provide important extensions to the VHPSE and VSPSE and make possible a fully-integrated environment for human anatomical and physiological modeling: the Virtual Human.

Ward, Richard C [ORNL; Pouchard, Line Catherine [ORNL; Munro, Nancy B [ORNL; Fischer, Sarah Kathleen [ORNL

2008-01-01T23:59:59.000Z

147

Supercomputers Tackle Biofuel Production Problems  

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

V V E R C O M I N G P L A N T R E C A L C I T R A N C E Supercomputers Tackle BIOFUEL Production Problems If you have ever dealt with an uncooperative, fractious kid or a combative employee, you understand the meaning of "recalcitrance" - over-the-top stubbornness, disobedience, and noncompliance. But recalcitrance is not just a human trait - plants can be recalcitrant, too, and for them it is a matter of survival. Over millions of years, plants have evolved complex structural and chemical mechanisms to ward off assaults on their structural sugars by microbial and animal marauders. So it should be no surprise that when humans attempt to turn plant biomass into biofuels to meet our energy needs, we discover how stubborn and noncompliant our vegetative friends can be. Plant recalcitrance is one of

148

Studies of Nonlinear Problems, I  

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

. . . ~0s ALAMOS SCIENTIFIC LABORATORY of the UNIVERSITY OF CALIFORNIA ' . c' . .: . Report written: May 1955 Report distributed: LA-1940 h .1 STUDIES OF NONLINEAR PROBLEMS. I . - 4 . . . ._~ Work done by: E. Fermi J. Pasta S. Ulam M. Tsingou PHYSICS Report written by: E. Fermi J. Pasta S. Ulam DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available document. original . - . * * , . ' ABSTRACT " .*. . A one-dimensional dynamical system of 64 particles with forces be- . . . tween neighbors containing nonlinear terms has been studied on the Los Alamos computer MANIAC I. The nonlinear terms considered are quadratic, cubic, and broken linear types. The results are analyzed into Fourier

149

The 3He Supply Problem  

Science Conference Proceedings (OSTI)

One of the main uses for 3He is in gas proportional counters for neutron detection. Radiation portal monitors deployed for homeland security and non-proliferation use such detectors. Other uses of 3He are for research detectors, commercial instruments, well logging detectors, dilution refrigerators, for targets or cooling in nuclear research, and for basic research in condensed matter physics. The US supply of 3He comes almost entirely from the decay of tritium used in nuclear weapons by the US and Russia. A few other countries contribute a small amount to the world抯 3He supply. Due to the large increase in use of 3He for homeland security, the supply has dwindled, and can no longer meet the demand. This white paper reviews the problems of supply, utilization, and alternatives.

Kouzes, Richard T.

2009-05-01T23:59:59.000Z

150

Multigrid Methods for Elliptic Problems: A Review  

Science Conference Proceedings (OSTI)

Multigrid methods solve a large class of problems very efficiently. They work by approximating a problem on multiple overlapping grids with widely varying mesh sizes and cycling between thew approximations, using relaxation to reduce the error on ...

Scott R. Fulton; Paul E. Ciesielski; Wayne H. Schubert

1986-05-01T23:59:59.000Z

151

Competitive solutions for online financial problems  

Science Conference Proceedings (OSTI)

This article surveys results concerning online algorihtms for solving problems related to the management of money and other assets. In particular, the survey focucus us search, replacement, and portfolio selection problems

Ran El-Yaniv

1998-03-01T23:59:59.000Z

152

Approximation algorithms for stochastic scheduling problems  

E-Print Network (OSTI)

In this dissertation we study a broad class of stochastic scheduling problems characterized by the presence of hard deadline constraints. The input to such a problem is a set of jobs, each with an associated value, processing ...

Dean, Brian C. (Brian Christopher), 1975-

2005-01-01T23:59:59.000Z

153

Fermi and the ergodic problem Giovanni Gallavotti  

E-Print Network (OSTI)

the esoteric (quasi) ergodic problem. Consider- ing a `{degrees of freedom system, ` > 2, with Hamilto- nian H

Roma "La Sapienza", Universit脿 di

154

Quantum Algorithm to Solve Satisfiability Problems  

E-Print Network (OSTI)

A new quantum algorithm is proposed to solve Satisfiability(SAT) problems by taking advantage of non-unitary transformation in ground state quantum computer. The energy gap scale of the ground state quantum computer is analyzed for 3-bit Exact Cover problems. The time cost of this algorithm on general SAT problems is discussed.

Wenjin Mao

2004-11-29T23:59:59.000Z

155

Approximation of Bayesian Inverse Problems for PDEs  

Science Conference Proceedings (OSTI)

Inverse problems are often ill posed, with solutions that depend sensitively on data. In any numerical approach to the solution of such problems, regularization of some form is needed to counteract the resulting instability. This paper is based on an ... Keywords: Bayesian, Markov chain-Monte Carlo, Stokes flow, data assimilation, inverse problem

S. L. Cotter; M. Dashti; A. M. Stuart

2010-04-01T23:59:59.000Z

156

1 July 1996 `The Hard Problem'  

E-Print Network (OSTI)

1 July 1996 Turning `The Hard Problem' Upside Down & Sideways Piet Hut Roger N. Shepard School. As a first option, we reconsider the `hard problem' of the relation between conscious experience and the physical world by thus turning that problem upside down. We also consider a second option: turning the hard

Hut, Piet

157

PROBLEMS OF FORECAST1 Dmitry KUCHARAVY  

E-Print Network (OSTI)

1 PROBLEMS OF FORECAST1 Dmitry KUCHARAVY dmitry.kucharavy@insa-strasbourg.fr Roland DE GUIO roland for the purpose of Innovative Design. First, a brief analysis of problems for existing forecasting methods of the forecast errors. Second, using a contradiction analysis, a set of problems related to technology forecast

Paris-Sud XI, Universit茅 de

158

One-dimensional Gromov minimal filling problem  

Science Conference Proceedings (OSTI)

The paper is devoted to a new branch in the theory of one-dimensional variational problems with branching extremals, the investigation of one-dimensional minimal fillings introduced by the authors. On the one hand, this problem is a one-dimensional version of a generalization of Gromov's minimal fillings problem to the case of stratified manifolds. On the other hand, this problem is interesting in itself and also can be considered as a generalization of another classical problem, the Steiner problem on the construction of a shortest network connecting a given set of terminals. Besides the statement of the problem, we discuss several properties of the minimal fillings and state several conjectures. Bibliography: 38 titles.

Ivanov, Alexandr O; Tuzhilin, Alexey A

2012-05-31T23:59:59.000Z

159

Constrained Graph Optimization: Interdiction and Preservation Problems  

SciTech Connect

The maximum flow, shortest path, and maximum matching problems are a set of basic graph problems that are critical in theoretical computer science and applications. Constrained graph optimization, a variation of these basic graph problems involving modification of the underlying graph, is equally important but sometimes significantly harder. In particular, one can explore these optimization problems with additional cost constraints. In the preservation case, the optimizer has a budget to preserve vertices or edges of a graph, preventing them from being deleted. The optimizer wants to find the best set of preserved edges/vertices in which the cost constraints are satisfied and the basic graph problems are optimized. For example, in shortest path preservation, the optimizer wants to find a set of edges/vertices within which the shortest path between two predetermined points is smallest. In interdiction problems, one deletes vertices or edges from the graph with a particular cost in order to impede the basic graph problems as much as possible (for example, delete edges/vertices to maximize the shortest path between two predetermined vertices). Applications of preservation problems include optimal road maintenance, power grid maintenance, and job scheduling, while interdiction problems are related to drug trafficking prevention, network stability assessment, and counterterrorism. Computational hardness results are presented, along with heuristic methods for approximating solutions to the matching interdiction problem. Also, efficient algorithms are presented for special cases of graphs, including on planar graphs. The graphs in many of the listed applications are planar, so these algorithms have important practical implications.

Schild, Aaron V [Los Alamos National Laboratory

2012-07-30T23:59:59.000Z

160

Consciousness in Robots: The Hard Problem and Some Less Hard Problems  

E-Print Network (OSTI)

Consciousness in Robots: The Hard Problem and Some Less Hard Problems B. J. MacLennan Department it is also important. Finally we explore the Hard Problem for robots (i.e., whether they can experience sub, intentional- ity, evolutionary psychology, artificial life, autonomous robots, the hard problem I

Tennessee, University of

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


161

Consciousness in Robots: The Hard Problem and Some Less Hard Problems  

E-Print Network (OSTI)

1 Consciousness in Robots: The Hard Problem and Some Less Hard Problems (Extended Version intrinsic intentionality from consciousness, but argue it is also important. Fi- nally we explore the Hard using "the Hard Problem" to refer to the principal scientific problem of consciousness, which

Tennessee, University of

162

Computational evaluation of two reactor benchmark problems  

E-Print Network (OSTI)

A neutronic evaluation of two reactor benchmark problems was performed. The benchmark problems describe typical PWR uranium and plutonium (mixed oxide) fueled lattices. WIMSd4m, a neutron transport lattice code, was used to evaluate multigroup macroscopic cross sections for various pincell models in each benchmark problem. DEF3D, a multigroup multidimensional diffusion code, was used to evaluate the uranium-fueled lattice benchmark problem of the American Nuclear Society. TWODANT, a multigroup, two-dimensional transport code, was used to evaluate the mixed oxide lattice benchmark problem from the Nuclear Energy Agency. Both benchmark problems yielded results consistent with preliminary results submitted by other participants in the benchmarking exercises. Some suggestions are made to improve future benchmark evaluations.

Cowan, James Anthony

1998-01-01T23:59:59.000Z

163

Hans Bethe and the Global Energy Problems  

E-Print Network (OSTI)

Bethe's view-point on the global energy problems is presented. Bethe claimed that the nuclear power is a necessity in future. Nuclear energetic must be based on breeder reactors. Bethe considered the non-proliferation of nuclear weapons as the main problem of long-range future of nuclear energetics. The solution of this problem he saw in heavy water moderated thermal breeders, using uranium-233, uranium-238 and thorium as a fuel.

Ioffe, B L

2005-01-01T23:59:59.000Z

164

Minimal Achievable Error in the LED problem  

E-Print Network (OSTI)

This paper presents a theoretical model to predict the minimal achievable error, given a noise ratio #, in the LED data set problem. The motivation for developing this theoretical model is to understand and explain some of the results that di#erent systems achieve when they solve the LED problem. Moreover, given a new learning algorithm that solves the LED problem, we can now bound its optimal generalization accuracy.

Xavier Llora; Xavier Llora; David E. Goldberg; David E. Goldberg

2002-01-01T23:59:59.000Z

165

Hans Bethe and the Global Energy Problems  

E-Print Network (OSTI)

Bethe's view-point on the global energy problems is presented. Bethe claimed that the nuclear power is a necessity in future. Nuclear energetic must be based on breeder reactors. Bethe considered the non-proliferation of nuclear weapons as the main problem of long-range future of nuclear energetics. The solution of this problem he saw in heavy water moderated thermal breeders, using uranium-233, uranium-238 and thorium as a fuel.

B. L. Ioffe

2005-07-06T23:59:59.000Z

166

CA Problem is Price - Energy Information Administration  

U.S. Energy Information Administration (EIA)

The basic California problem concerning heavy crude oil is price. With the reported cost of the natural-gas-fueled steam for extracting the crude sometimes being as ...

167

Multi-Standard Quadratic Optimization Problems  

E-Print Network (OSTI)

Abstract. A Standard Quadratic Optimization Problem (StQP) consists ... A multi- standard quadratic optimiza- ..... the two sums in the last row above are identical.

168

The Facility Location Problem with Bernoulli Demands  

E-Print Network (OSTI)

Abstract. In this paper we address a discrete capacitated facility location problem in which ...... The type of instance for FLPBD (1, 2, 3, or 4) as described above.

169

Student's algorithm solves real-world problem  

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

how to use powerful computers to analyze, model, and solve real-world problems," Jordan Medlock wins supercomputer challenge with his algorithm that automates counting and...

170

On the Transportation Problem with Market Choice  

E-Print Network (OSTI)

Apr 3, 2013 ... Abstract: We study a variant of the classical transportation problem in which suppliers with limited capacities have a choice of which demands...

171

Optimization Online - The Freight Train Routing Problem  

E-Print Network (OSTI)

Jul 21, 2013 ... Abstract: We consider the following freight train routing problem (FTRP). Given is a transportation network with fixed routes for passenger trains...

172

Quantum Condensates in Nuclear Matter: Problems  

E-Print Network (OSTI)

In connection with the contribution "Quantum Condensates in Nuclear Matter" some problems are given to become more familiar with the techniques of many-particle physics.

G. Ropke; D. Zablocki

2010-01-11T23:59:59.000Z

173

MIRPLib: A Maritime Inventory Routing Problem Library  

E-Print Network (OSTI)

Aug 28, 2013 ... Abstract: This paper presents a detailed description of a particular class of deterministic single product maritime inventory routing problems...

174

Brief announcement: Exploring the Consistency Problem Space  

E-Print Network (OSTI)

We study formally the consistency problem, for replicated shared data, in the Action-Constraint framework (ACF). ACF can describe a large range of application semantics and replication protocols, including optimistic and/or partial replication. ACF is used to decompose the consistency problem into simpler sub-problems. Each is easily understood. Existing algorithms from the literature can be explained as combinations of concrete sub-problem implementations. Using ACF, we design a new serialisation algorithm that does not cause aborts and only needs pairwise agreement (not global consensus).

Nishith Krishna; Marc Shapiro; Karthikeyan Bhargavan

2005-01-01T23:59:59.000Z

175

Optimization Online - Stochastic Nash Equilibrium Problems ...  

E-Print Network (OSTI)

May 22, 2009 ... Finally, the model is applied to a stochastic Nash equilibrium problem in the electricity market. Keywords: Stochastic Nash equilibrium,...

176

Test problems for quasi-satellite packing????  

E-Print Network (OSTI)

1. Test problems for quasi-satellite packing: Cylinders packing with behavior constraints and all the optimal solutions known. Chao Che. School of Mechanical ...

177

The recoverable robust tail assignment problem  

E-Print Network (OSTI)

using column generation in the master and subproblems of the Benders ...... described by (36)-(41) is a network flow problem with one source and multiple sink.

178

Optimization Online - Minimax Robust Unit Commitment Problem ...  

E-Print Network (OSTI)

Oct 19, 2012... Commitment Problem with Demand and Market Price uncertainty ... to energy providers --- consists of finding an energy production plan in...

179

Integer Solutions to Cutting Stock Problems  

E-Print Network (OSTI)

ting Stock Problem (CSP) that can be described as follows: find the most ... two integer linear programming models for the one-dimensional CSP differing in.

180

Exact Solution of Emerging Quadratic Assignment Problems  

E-Print Network (OSTI)

National Science Foundation under grant No. DMI-. 0400155. .... Process Allocation Problem of Sofianopoulous ([63] and. [64]), the ...... lower bound is tight

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


181

View  

E-Print Network (OSTI)

and Boyd (1996), Todd (2001), the SDP handbook edited by Wolkowicz et al. ..... cut polytope CHULL(G) does not admit a polynomial time separation oracle, but ...... problem. In cutting plane algorithms it is of fundamental importance that re-.

182

Designing Optimal Spectral Filters for Inverse Problems  

Science Conference Proceedings (OSTI)

Spectral filtering suppresses the amplification of errors when computing solutions to ill-posed inverse problems; however, selecting good regularization parameters is often expensive. In many applications, data are available from calibration experiments. ... Keywords: Bayes risk, Bayesian risk, Tikhonov, Wiener filter, empirical risk, filtering, ill-posed problem, image deblurring, machine learning, optimal design, optimal filtering, regularization, singular value decomposition, stochastic programming

Julianne Chung; Matthias Chung; Dianne P. O'Leary

2011-11-01T23:59:59.000Z

183

A Remark on the Kramers Problem  

E-Print Network (OSTI)

We present new point of view on the old problem, the Kramers problem. The passage from the Fokker-Planck equation to the Smoluchowski equation, including corrections to the Smoluchowski current, is treated through an asymptotic expansion of the solution of the stochastic dynamical equations. The case of an extremely weak force of friction is also discussed

A. Samoletov

2003-11-10T23:59:59.000Z

184

A Remark on the Kramers Problem  

E-Print Network (OSTI)

We present new point of view on the old problem, the Kramers problem. The passage from the Fokker-Planck equation to the Smoluchowski equation, including corrections to the Smoluchowski current, is treated through an asymptotic expansion of the solution of the stochastic dynamical equations. The case of an extremely weak force of friction is also discussed

Samoletov, A

1999-01-01T23:59:59.000Z

185

Iterative Methods for Neutron Transport Eigenvalue Problems  

Science Conference Proceedings (OSTI)

We discuss iterative methods for computing criticality in nuclear reactors. In general this requires the solution of a generalized eigenvalue problem for an unsymmetric integro-differential operator in six independent variables, modeling transport, scattering, ... Keywords: criticality, generalized eigenvalue problem, inexact inverse iteration, neutron transport, symmetry

Fynn Scheben; Ivan G. Graham

2011-09-01T23:59:59.000Z

186

CALIFORNIA ENERGY Small HVAC Problems and Potential  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Small HVAC Problems and Potential Savings Reports Summary of Problems of the Integrated Design of Small Commercial HVAC Systems research project. The reports are a result of funding: Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design

187

Dual extragradient algorithms extended to equilibrium problems  

Science Conference Proceedings (OSTI)

In this paper we propose two iterative schemes for solving equilibrium problems which are called dual extragradient algorithms. In contrast with the primal extragradient methods in Quoc et al. (Optimization 57(6):749---776, 2008) which require ... Keywords: Complexity, Dual extragradient algorithm, Equilibrium problem, Gap function, Nash-Cournot equilibria

Tran D. Quoc; Pham N. Anh; Le D. Muu

2012-01-01T23:59:59.000Z

188

Steiner Forest Orientation Problems Marek Cygan1  

E-Print Network (OSTI)

Steiner Forest Orientation Problems Marek Cygan1 , Guy Kortsarz2 , and Zeev Nutov3 1 Institute with orientation constra- ints. Given a directed graph D and a collection of ordered node pairs P let P[D] = {(u, v) P : D contains an uv-path}. In the Steiner Forest Orientation problem we are given an undirected

Kortsarz, Guy

189

Steiner Forest Orientation Problems Marek Cygan1  

E-Print Network (OSTI)

Steiner Forest Orientation Problems Marek Cygan1 , Guy Kortsarz2 , and Zeev Nutov3 1 IDSIA with orientation constra- ints. Given a directed graph D and a collection of ordered node pairs P let P[D] = {(u, v) P : D contains a uv-path}. In the Steiner Forest Orientation problem we are given an undirected

Kortsarz, Guy

190

The real problem with Merchant transmission  

SciTech Connect

Current regulatory policy distinguishes transmission investments that have primarily economic benefits from those that primarily enhance reliability. But no such dichotomy exists; congestion and reliability are inter-related in complex ways. Thus, solving the transmission investment problem is more complex than ''fixing'' merchant transmission; investment in the grid must be treated as a systems problem. (author)

Blumsack, Seth; Lave, Lester B.; Ilic, Marija

2008-03-15T23:59:59.000Z

191

Iterated local search in nurse rostering problem  

Science Conference Proceedings (OSTI)

This paper presents how to solve a nurse rostering problem over the real datasets of Centre hospitalier r間ional de Trois-Rivi鑢es hospital in Canada. Due to the complexity of this problem with plenty of hard constraints, we propose an ... Keywords: greedy, iterated local search, nurse rostering, tabu search

Sen Ngoc Vu, Minh H. Nhat Nguyen, Le Minh Duc, Chantal Baril, Viviane Gascon, Tien Ba Dinh

2013-12-01T23:59:59.000Z

192

Quantum Algorithms for Graph Problems -- A Survey  

E-Print Network (OSTI)

In this survey we give an overview about important methods to construct quantum algorithms and quantum lower bounds for graph problems. We show how to use these methods, and we give a summary about the quantum complexity of the most important graph problems. At the end of our paper, we give some interesting questions in this research area.

Sebastian D鰎n

2006-01-01T23:59:59.000Z

193

The 2-hop spanning tree problem  

Science Conference Proceedings (OSTI)

A spanning tree in a graph G where each node has distance at most 2 from a root node r is called a 2-hop spanning tree. For given edge weights the 2-hop spanning tree problem is to find a minimum weight 2-hop spanning tree. The problem is NP-hard. We ... Keywords: Hop-constrained spanning tree, Integer programming, Polyhedra

Geir Dahl

1998-08-01T23:59:59.000Z

194

Fuel cycle problems in fusion reactors  

SciTech Connect

Fuel cycle problems of fusion reactors evolve around the breeding, recovery, containment, and recycling of tritium. These processes are described, and their implications and alternatives are discussed. Technically, fuel cycle problems are solvable; economically, their feasibility is not yet known. (auth)

Hickman, R.G.

1976-01-13T23:59:59.000Z

195

Student's algorithm solves real-world problem  

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

Student's algorithm solves real-world problem Student's algorithm solves real-world problem Supercomputing Challenge: student's algorithm solves real-world problem Students learn how to use powerful computers to analyze, model, and solve real-world problems. April 3, 2012 Jordon Medlock of Albuquerque's Manzano High School won the 2012 Lab-sponsored Supercomputing Challenge Jordon Medlock of Albuquerque's Manzano High School won the 2012 Lab-sponsored Supercomputing Challenge by creating a computer algorithm that automates the process of counting and analyzing plaques, substances in the blood such as fat and cholesterol found in persons diagnosed with Alzheimer's disease. Contact Kurt Steinhaus (505) 665-7370 Email "The mission of the Supercomputing Challenge is to teach students how to use powerful computers to analyze, model, and solve real-world problems,"

196

Exactly solvable quantum Sturm-Liouville problems  

Science Conference Proceedings (OSTI)

The harmonic oscillator with time-dependent parameters covers a broad spectrum of physical problems from quantum transport, quantum optics, and quantum information to cosmology. Several methods have been developed to quantize this fundamental system, such as the path integral method, the Lewis-Riesenfeld time invariant method, the evolution operator or dynamical symmetry method, etc. In all these methods, solution of the quantum problem is given in terms of the classical one. However, only few exactly solvable problems of the last one, such as the damped oscillator or the Caldirola-Kanai model, have been treated. The goal of the present paper is to introduce a wide class of exactly solvable quantum models in terms of the Sturm-Liouville problem for classical orthogonal polynomials. This allows us to solve exactly the corresponding quantum parametric oscillators with specific damping and frequency dependence, which can be considered as quantum Sturm-Liouville problems.

Bueyuekasik, Sirin A.; Pashaev, Oktay K. [Department of Mathematics, Izmir Institute of Technology, Urla, Izmir 35430 (Turkey); Tigrak-Ulas, Esra [Astronomy, Kapteyn Institute, University of Groningen, Zernike Gebouw, Landleven, 12 9747 AD Groningen (Netherlands)

2009-07-15T23:59:59.000Z

197

New directions in enumerative chess problems  

E-Print Network (OSTI)

Normally a chess problem must have a unique solution, and is deemed unsound even if there are alternatives that differ only in the order in which the same moves are played. In an enumerative chess problem, the set of moves in the solution is (usually) unique but the order is not, and the task is to count the feasible permutations via an isomorphic problem in enumerative combinatorics. Almost all enumerative chess problems have been ``series-movers'', in which one side plays an uninterrupted series of moves, unanswered except possibly for one move by the opponent at the end. This can be convenient for setting up enumeration problems, but we show that other problem genres also lend themselves to composing enumerative problems. Some of the resulting enumerations cannot be shown (or have not yet been shown) in series-movers. This article is based on a presentation given at the banquet in honor of Richard Stanley's 60th birthday, and is dedicated to Stanley on this occasion.

Noam D. Elkies

2005-08-31T23:59:59.000Z

198

Houston, we have a problem...: a survey of actual problems in computer games development  

Science Conference Proceedings (OSTI)

This paper presents a survey of problems found in the development process of electronic games. These problems were collected mainly from game postmortems and specialized litterature on game development, allowing a comparison with respect to well-known ... Keywords: electronic games, game development, postmortems, problems in game development, survey

F醔io Petrillo; Marcelo Pimenta; Francisco Trindade; Carlos Dietrich

2008-03-01T23:59:59.000Z

199

SIENA Customer Problem Statement and Requirements  

Science Conference Proceedings (OSTI)

This document describes the problem domain and functional requirements of the SIENA framework. The software requirements and system architecture of SIENA are specified in separate documents (called SIENA Software Requirement Specification and SIENA Software Architecture, respectively). While currently this version of the document describes the problems and captures the requirements within the Analysis domain (concentrating on finite element models), it is our intention to subsequent y expand this document to describe problems and capture requirements from the Design and Manufacturing domains. In addition, SIENA is designed to be extendible to support and integrate elements from the other domains (see SIENA Software Architecture document).

L. Sauer; R. Clay; C. Adams; H. Walther; B. Allan; R. Mariano; C. Poore; B. Whiteside; B. Boughton; J. Dike; E. Hoffman; R. Hogan; C. LeGall

2000-08-01T23:59:59.000Z

200

Inverse hyperbolic problems and optical black holes  

E-Print Network (OSTI)

In this paper we give a more geometrical formulation of the main theorem in [E1] on the inverse problem for the second order hyperbolic equation of general form with coefficients independent of the time variable. We apply this theorem to the inverse problem for the equation of the propagation of light in a moving medium (the Gordon equation). Then we study the existence of black and white holes for the general hyperbolic and for the Gordon equation and we discuss the impact of this phenomenon on the inverse problems.

Gregory Eskin

2008-09-23T23:59:59.000Z

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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


201

Mitigating PQ Problems in Legacy Data Centers  

Science Conference Proceedings (OSTI)

The conclusions of this presentation are: (1) Problems with PQ in legacy data centers still exist and need to be mitigated; (2) Harmonics generated by non-linear IT load can be lowered by passive, active and hybrid cancellation methods; (3) Harmonic study is necessary to find the best way to treat PQ problems; (4) AHF's and harmonic cancellation transformers proved to be very efficient in mitigating PQ problems; and (5) It is important that IT leaders partner with electrical engineering to appropriate ROI statements, justifying many of these expenditures.

Ilinets, Boris; /SLAC

2011-06-01T23:59:59.000Z

202

Modeling the Black Hole Excision Problem  

E-Print Network (OSTI)

We analyze the excision strategy for simulating black holes. The problem is modeled by the propagation of quasi-linear waves in a 1-dimensional spatial region with timelike outer boundary, spacelike inner boundary and a horizon in between. Proofs of well-posed evolution and boundary algorithms for a second differential order treatment of the system are given for the separate pieces underlying the finite difference problem. These are implemented in a numerical code which gives accurate long term simulations of the quasi-linear excision problem. Excitation of long wavelength exponential modes, which are latent in the problem, are suppressed using conservation laws for the discretized system. The techniques are designed to apply directly to recent codes for the Einstein equations based upon the harmonic formulation.

B. Szilagyi; H-O. Kreiss; J. Winicour

2004-12-21T23:59:59.000Z

203

Parallel Displacement Decomposition Solvers for Elasticity Problems  

Science Conference Proceedings (OSTI)

This article describes the displacement decomposition and its benefits for the parallelization of the preconditioned conjugate gradient method for finite element elasticity problems. It deals with both the fixed and variable preconditioning based on ...

Radim Blaheta; Ondrej Jakl; Jiri Stary

2001-09-01T23:59:59.000Z

204

An effective algorithm of motif finding problem  

Science Conference Proceedings (OSTI)

Identification of the short DNA sequence motif, which serves as binding targets for transcription factors, is a fundamental problem in both computer science and molecular biology. Especially, finding the subtle motifs with variable gaps is more challenging. ...

Yong Chen; Guojun Li

2008-05-01T23:59:59.000Z

205

A multiple secretary problem with switch costs  

E-Print Network (OSTI)

In this thesis, we utilize probabilistic reasoning and simulation methods to determine the optimal selection rule for the secretary problem with switch costs, in which a known number of applicants appear sequentially in a ...

Ding, Jiachuan

2007-01-01T23:59:59.000Z

206

ADAM: a problem-oriented symbol processor  

Science Conference Proceedings (OSTI)

Digital computers have evolved in their own technical environment, and to a large degree independently of the problem environment. Thus it was necessary to have computing centers with staffs of programmers as intermediaries between machines and users. ...

A. P. Mullery; R. F. Schauer; R. Rice

1963-05-01T23:59:59.000Z

207

The Logical Problem of Language Change  

E-Print Network (OSTI)

This paper considers the problem of language change. Linguists must explain not only how languages are learned but also how and why they have evolved along certain trajectories and not others. While the language ...

Niyogi, Partha

1995-12-01T23:59:59.000Z

208

Maximum Empirical Likelihood: Empty Set Problem  

E-Print Network (OSTI)

resulted in the extension of ESP into aESP A feedback fromand therefore may be subject to the empty set problem (ESP).In other words, ESP introduces the possibility that for the

Grendar, Marian; Judge, George G

2009-01-01T23:59:59.000Z

209

Online decision problems with large strategy sets  

E-Print Network (OSTI)

In an online decision problem, an algorithm performs a sequence of trials, each of which involves selecting one element from a fixed set of alternatives (the "strategy set") whose costs vary over time. After T trials, the ...

Kleinberg, Robert David

2005-01-01T23:59:59.000Z

210

Numerical solution methods for differential game problems  

E-Print Network (OSTI)

Differential game theory provides a potential means for the parametric analysis of combat engagement scenarios. To determine its viability for this type of analysis, three frameworks for solving differential game problems ...

Johnson, Philip A. (Philip Arthur)

2009-01-01T23:59:59.000Z

211

The Group Diffie-Hellman Problems  

Science Conference Proceedings (OSTI)

In this paper we study generalizations of the Diffie-Hellman problems recently used to construct cryptographic schemes for practical purposes. The Group Computational and the Group Decisional Diffie-Hellman assumptions not only enable one to construct ...

Emmanuel Bresson; Olivier Chevassut; David Pointcheval

2002-08-01T23:59:59.000Z

212

Detached shock problem and related topics  

Science Conference Proceedings (OSTI)

A finite difference method for solving the Cauchy or initial value problem for elliptic partial differential equations as introduced in (1) and further developed in (2) will be the principal topic discussed here. Involved in this discussion, also, will ...

H. M. Lieberstein

1959-09-01T23:59:59.000Z

213

Nogood Recording for Valued Constraint Satisfaction Problems  

Science Conference Proceedings (OSTI)

In the frame of classical Constraint Satisfaction Problems (CSPs), the backtrack tree search, combined with learning methods, presents a double advantage: for static solving, it improves the search speed by avoiding redundant explorations; for dynamic ...

P. Dago; G. Verfailllie

1996-11-01T23:59:59.000Z

214

Solution to the Dark Energy Problem  

E-Print Network (OSTI)

I present a simple, and hopefully convincing, discussion of a solution to the dark energy problem, which arises because the visible universe is well approximated by a black hole.

Frampton, Paul Howard

2010-01-01T23:59:59.000Z

215

Essays on the principal-expert problem  

E-Print Network (OSTI)

This dissertation studies the problem of motivating an expert to help a principal take a decision. The first chapter examines a principal-expert model in which the only source of friction is that the expert must be induced ...

Zerme駉 Vall閟, Luis G. (Luis Guillermo)

2012-01-01T23:59:59.000Z

216

test problem for packing_sumit  

E-Print Network (OSTI)

Test problems of circles in circle packing with constraints and known the optimal solutions*. Hong-fei Teng1, 2**, Chao Che 2, Yu Chen 1, Yi-shou Wang 1. 1.

217

Exact Algorithms for Combinatorial Optimization Problems with ...  

E-Print Network (OSTI)

Fuchs [10] showed that the problem of finding a minimum-power connected network with ... receiving node, in the latter all nodes except the source are addressed. ..... As an alternative, one could use an algorithm for general submodular...

218

Nonlinear boundary value problem of magnetic insulation  

E-Print Network (OSTI)

On the basis of generalization of upper and lower solution method to the singular two point boundary value problems, the existence theorem of solutions for the system, which models a process of magnetic insulation in plasma is proved.

A. V. Sinitsyn

2000-09-09T23:59:59.000Z

219

Universal Forces and the Dark Energy Problem  

E-Print Network (OSTI)

The Dark Energy problem is forcing us to re-examine our models and our understanding of relativity and space-time. Here a novel idea of Fundamental Forces is introduced. This allows us to perceive the General Theory of Relativity and Einstein's Equation from a new pesrpective. In addition to providing us with an improved understanding of space and time, it will be shown how it leads to a resolution of the Dark Energy problem.

Afsar Abbas

2007-04-01T23:59:59.000Z

220

Universal Forces and the Dark Energy Problem  

E-Print Network (OSTI)

The Dark Energy problem is forcing us to re-examine our models and our understanding of relativity and space-time. Here a novel idea of Fundamental Forces is introduced. This allows us to perceive the General Theory of Relativity and Einstein's Equation from a new pesrpective. In addition to providing us with an improved understanding of space and time, it will be shown how it leads to a resolution of the Dark Energy problem.

Abbas, Afsar

2007-01-01T23:59:59.000Z

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


221

Geological problems in radioactive waste isolation  

SciTech Connect

The problem of isolating radioactive wastes from the biosphere presents specialists in the fields of earth sciences with some of the most complicated problems they have ever encountered. This is especially true for high level waste (HLW) which must be isolated in the underground and away from the biosphere for thousands of years. Essentially every country that is generating electricity in nuclear power plants is faced with the problem of isolating the radioactive wastes that are produced. The general consensus is that this can be accomplished by selecting an appropriate geologic setting and carefully designing the rock repository. Much new technology is being developed to solve the problems that have been raised and there is a continuing need to publish the results of new developments for the benefit of all concerned. The 28th International Geologic Congress that was held July 9--19, 1989 in Washington, DC provided an opportunity for earth scientists to gather for detailed discussions on these problems. Workshop W3B on the subject, Geological Problems in Radioactive Waste Isolation -- A World Wide Review'' was organized by Paul A Witherspoon and Ghislain de Marsily and convened July 15--16, 1989 Reports from 19 countries have been gathered for this publication. Individual papers have been cataloged separately.

Witherspoon, P.A. (ed.)

1991-01-01T23:59:59.000Z

222

Geological problems in radioactive waste isolation  

SciTech Connect

The problem of isolating radioactive wastes from the biosphere presents specialists in the fields of earth sciences with some of the most complicated problems they have ever encountered. This is especially true for high level waste (HLW) which must be isolated in the underground and away from the biosphere for thousands of years. Essentially every country that is generating electricity in nuclear power plants is faced with the problem of isolating the radioactive wastes that are produced. The general consensus is that this can be accomplished by selecting an appropriate geologic setting and carefully designing the rock repository. Much new technology is being developed to solve the problems that have been raised and there is a continuing need to publish the results of new developments for the benefit of all concerned. The 28th International Geologic Congress that was held July 9--19, 1989 in Washington, DC provided an opportunity for earth scientists to gather for detailed discussions on these problems. Workshop W3B on the subject, Geological Problems in Radioactive Waste Isolation -- A World Wide Review'' was organized by Paul A Witherspoon and Ghislain de Marsily and convened July 15--16, 1989 Reports from 19 countries have been gathered for this publication. Individual papers have been cataloged separately.

Witherspoon, P.A. (ed.)

1991-01-01T23:59:59.000Z

223

Frequency Instability Problems in North American Interconnections  

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

Frequency Instability Problems in Frequency Instability Problems in North American Interconnections May 1, 2011 DOE/NETL-2011/1473 Frequency Instability Problems in North American Interconnections Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

224

Inverse Problems in Classical and Quantum Physics  

E-Print Network (OSTI)

The subject of this thesis is in the area of Applied Mathematics known as Inverse Problems. Inverse problems are those where a set of measured data is analysed in order to get as much information as possible on a model which is assumed to represent a system in the real world. We study two inverse problems in the fields of classical and quantum physics: QCD condensates from tau-decay data and the inverse conductivity problem. We use a functional method which allows us to extract within rather general assumptions phenomenological parameters of QCD (the condensates) from a comparison of the time-like experimental data with asymptotic space-like results from theory. The price to be paid for the generality of assumptions is relatively large errors in the values of the extracted parameters. Although we do not claim that our method is superior to other approaches, we hope that our results lend additional confidence to the numerical results obtained with the help of methods based on QCD sum rules. In this thesis, also two approaches of EIT image reconstruction are proposed. The first is based on reformulating the inverse problem in terms of integral equations. This method uses only a single set of measurements for the reconstruction. The second approach is an algorithm based on linearisation which uses more then one set of measurements. A promising result is that one can qualitatively reconstruct the conductivity inside the cross-section of a human chest. Even though the human volunteer is neither two-dimensional nor circular, such reconstructions can be useful in medical applications: monitoring for lung problems such as accumulating fluid or a collapsed lung and noninvasive monitoring of heart function and blood flow.

Andrea A. Almasy

2009-12-02T23:59:59.000Z

225

Transport Test Problems for Hybrid Methods Development  

Science Conference Proceedings (OSTI)

This report presents 9 test problems to guide testing and development of hybrid calculations for the ADVANTG code at ORNL. These test cases can be used for comparing different types of radiation transport calculations, as well as for guiding the development of variance reduction methods. Cases are drawn primarily from existing or previous calculations with a preference for cases which include experimental data, or otherwise have results with a high level of confidence, are non-sensitive, and represent problem sets of interest to NA-22.

Shaver, Mark W.; Miller, Erin A.; Wittman, Richard S.; McDonald, Benjamin S.

2011-12-28T23:59:59.000Z

226

Planning lessens problems, gets benefits of underbalance  

Science Conference Proceedings (OSTI)

A horizontal well planned to be drilled underbalanced required special procedures and countermeasures to prevent formation damage from the mud and downhole tool failures from high temperature. Drilling the well underbalanced helped reduce problems from lost returns and from solids entering and plugging the natural fractures in the Austin chalk. The high bottom hole temperature in the deep Austin chalk in central Louisiana complicates drilling, the mud program, and well design. The first of this two-part series covers the planning, procedures, and well design to alleviate these problems. The next article, which will appear in a future issue, addresses complications during the operation and the equipment used.

Joseph, R.A. [OXY U.S.A. Inc., Houston, TX (United States)

1995-03-20T23:59:59.000Z

227

NP-complete Problems and Physical Reality  

E-Print Network (OSTI)

Can NP-complete problems be solved efficiently in the physical universe? I survey proposals including soap bubbles, protein folding, quantum computing, quantum advice, quantum adiabatic algorithms, quantum-mechanical nonlinearities, hidden variables, relativistic time dilation, analog computing, Malament-Hogarth spacetimes, quantum gravity, closed timelike curves, and "anthropic computing." The section on soap bubbles even includes some "experimental" results. While I do not believe that any of the proposals will let us solve NP-complete problems efficiently, I argue that by studying them, we can learn something not only about computation but also about physics.

Scott Aaronson

2005-02-12T23:59:59.000Z

228

Problems continue to plague electronic ballast industry  

SciTech Connect

Problems of unreliable components, poor quality due to the lack of performance testing standards, and electromagnetic radiation are preventing the electronic ballast industry from achieving the anticipated 40% electricity savings and have led several manufacturers to drop out of the market. The National Association of Lighting Maintenance Contractors (NALMCO) recognized the problem, and the remaining manufacturers plan to reduce the number of components to improve reliability until standards are developed. Many potential users are waiting for a larger selection and better product before they invest in electronic ballasts. A directory of major lighting equipment manufacturers accompanies the article. (DCK)

Warrock, A.M.

1983-10-17T23:59:59.000Z

229

On the geomagnetic directional problem: A uniqueness result  

E-Print Network (OSTI)

On the geomagnetic directional problem: A uniqueness result Ralf Kaiser Fakultat fur Mathematik = f D. This problem is related to the problem of reconstructing the geomagnetic #12;eld outside on S. Key words: Nonlinear boundary value problem, geomagnetism, directional problem 35J65, 86A25 1

Kaiser, Ralf

230

Differential nested lattice encoding for consensus problems  

Science Conference Proceedings (OSTI)

In this paper we consider the problem of transmitting quantized data while performing an average consensus algorithm. Average consensus algorithms are protocols to compute the average value of all sensor measurements via near neighbors communications. ... Keywords: average consensus, coding with side information, consensus, nested lattice coding, predictive coding

Mehmet E. Yildiz; Anna Scaglione

2007-04-01T23:59:59.000Z

231

MIRPLib: A Maritime Inventory Routing Problem Library  

E-Print Network (OSTI)

additional vessels can also be chartered on the spot market. A path-flow ...... On the other hand, if regional information is not specified in the problem, one can create an .... For a more detailed analysis of the tradeoff between speed ...... In Energy, Natural Resources and Environmental Economics, pages 427439. Springer...

232

Comonotonic approximations for optimal portfolio selection problems  

E-Print Network (OSTI)

We investigate multiperiod portfolio selection problems in a Black & Scholes type market where a basket of 1 riskfree and m risky securities are traded continuously. We look for the optimal allocation of wealth within the class of 抍onstant mix portfolios. First, we consider the portfolio selection problem of a decision maker who invests money at predetermined points in time in order to obtain a target capital at the end of the time period under consideration. A second problem concerns a decision maker who invests some amount of money (the initial wealth or provision) in order to be able to fullfil a series of future consumptions or payment obligations. Several optimality criteria and their interpretation within Yaari抯 dual theory of choice under risk are presented. For both selection problems, we propose accurate approximations based on the concept of comonotonicity, as studied in Dhaene, Denuit, Goovaerts, Kaas & Vyncke (2002 a,b). Our analytical approach avoids simulation, and hence reduces the computing effort drastically. 1

J. Dhaene; S. Vanduffel; M. J. Goovaerts; R. Kaas; D. Vyncke

2005-01-01T23:59:59.000Z

233

Applying Adaptive Evolutionary Algorithms to Hard Problems  

E-Print Network (OSTI)

Applying Adaptive Evolutionary Algorithms to Hard Problems J.I. van Hemert1 jvhemert into two distinct parts. The main theme is adaptive evolutionary algorithms. The rst part covers. The second part mainly consists of the development of a library. Its use is aimed at evolutionary algorithms

Emmerich, Michael

234

Optimum LDPC decoder: a memory architecture problem  

Science Conference Proceedings (OSTI)

This paper addresses a frequently overlooked problem: designing a memory architecture for an LDPC decoder. We analyze the requirements to support the codes defined in the IEEE 802.11n and 802.16e standards. We show a design methodology for a flexible ... Keywords: LDPC codes, low power architectures, memory optimization

Erick Amador; Renaud Pacalet; Vincent Rezard

2009-07-01T23:59:59.000Z

235

Department of Mathematics Analysis Inverse Problems  

E-Print Network (OSTI)

McLaughlin In this talk we report the application of level-set techniques for reservoir facies for data inversion in reservoir modeling, Inverse Problems, 25 (2009), 035006. [4] M. A. Iglesias and D. McLaughlin.40颅14.05 Anastasia Cornelio (Modena, Italy) Regularized Nonlinear Least Squares Methods for Hit Position

Hofmann, Bernd

236

Solving Water Quality Problems in the Home  

E-Print Network (OSTI)

If your drinking water comes from a private water well, there are certain procedures you can follow to make sure the water is safe. This publication explains how to get your water tested and, if treatment is necessary, to select the correct treatment equipment. Tables display common water problems and the equipment used to treat them.

Dozier, Monty; McFarland, Mark L.

2004-02-20T23:59:59.000Z

237

Cyclic coordinate descent in hydrothermal nonsmooth problems  

Science Conference Proceedings (OSTI)

In this paper we present an algorithm, inspired by the cyclic coordinate descent method, which allows the solution of hydrothermal optimization problems involving pumped-storage plants. The proof of the convergence of the succession generated by the ... Keywords: Coordinate descent, Hydrothermal coordination, Optimal control, Zangwill's theorem

Luis Bay髇; Jose M. Grau; Maria M. Ruiz; Pedro M. Su醨ez

2012-02-01T23:59:59.000Z

238

An introduction to the dark energy problem  

E-Print Network (OSTI)

In this work we review briefly the origin and history of the cosmological constant and its recent reincarnation in the form of the dark energy component of the universe. We also comment on the fundamental problems associated to its existence and magnitude which require and urgent solution for the sake of the internal consistency of theoretical physics.

Antonio Dobado; Antonio L. Maroto

2008-02-13T23:59:59.000Z

239

Inverse Problems in Classical and Quantum Physics  

E-Print Network (OSTI)

The subject of this thesis is in the area of Applied Mathematics known as Inverse Problems. Inverse problems are those where a set of measured data is analysed in order to get as much information as possible on a model which is assumed to represent a system in the real world. We study two inverse problems in the fields of classical and quantum physics: QCD condensates from tau-decay data and the inverse conductivity problem. We use a functional method which allows us to extract within rather general assumptions phenomenological parameters of QCD (the condensates) from a comparison of the time-like experimental data with asymptotic space-like results from theory. The price to be paid for the generality of assumptions is relatively large errors in the values of the extracted parameters. Although we do not claim that our method is superior to other approaches, we hope that our results lend additional confidence to the numerical results obtained with the help of methods based on QCD sum rules. In this thesis, als...

Almasy, Andrea A

2009-01-01T23:59:59.000Z

240

Identify the Problem: Reduce Waste By  

E-Print Network (OSTI)

Identify the Problem: Reduce Waste By Banning Plastic Bag Use Define Goal: Is the ban the most The 2008 EPA report asserts that while paper waste has remained relatively constant at approximately 31%, plastic waste has been rising from 0.4% in 1960 to the present value at 12%a. San Francisco sets the goal

Iglesia, Enrique

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


241

Pathwise Optimization for Optimal Stopping Problems  

Science Conference Proceedings (OSTI)

We introduce the pathwise optimization (PO) method, a new convex optimization procedure to produce upper and lower bounds on the optimal value (the 損rice) of a high-dimensional optimal stopping problem. The PO method builds on a dual characterization ... Keywords: American options, Bermudian options, dynamic programming, optimal control, optimal stopping

Vijay V. Desai; Vivek F. Farias; Ciamac C. Moallemi

2012-12-01T23:59:59.000Z

242

The stack loading and unloading problem  

Science Conference Proceedings (OSTI)

When piling a set of items in a single stack, one often does not pay attention to the order. Real-life experience suggests that, whenever a specific item is suddenly requested, we need to dig very deep into the stack to extract it. In this paper we investigate ... Keywords: Computational complexity, Dynamic programming, Stowage problems

Federico Malucelli; Stefano Pallottino; Daniele Pretolani

2008-10-01T23:59:59.000Z

243

Feasible distributed CSP models for scheduling problems  

Science Conference Proceedings (OSTI)

A distributed constraint satisfaction problem (DisCSP) is a CSP in which variables and constraints are distributed among multiple automated agents. Many researchers have developed techniques for solving DisCSPs. They assume for simplicity that each agent ... Keywords: Constraint satisfaction, Distributed CSP, Holonic system, Multi-agent system, Scheduling

Miguel A. Salido; Adriana Giret

2008-08-01T23:59:59.000Z

244

Problems of future GMDH algorithms development  

Science Conference Proceedings (OSTI)

Theories and algorithms developed for pattern recognition can be applied to random processes forecasting and for solution of all another interpolation type problems of artificial intelligence. For this purpose input data sample in the form of time series ... Keywords: approximation, computer software, error analysis, filtering, neural network

A. G. Ivakhnenko; E. A. Savchenko; G. A. Ivakhnenko

2003-10-01T23:59:59.000Z

245

On the Input Problem for Massive Modularity  

Science Conference Proceedings (OSTI)

Jerry Fodor argues that the massive modularity thesis -- the claim that (human) cognition is wholly served by domain specific, autonomous computational devices, i.e., modules -- is a priori ... Keywords: Fodor, Sperber, input problem, language faculty, massive modularity, theory of mind

J. Collins

2005-02-01T23:59:59.000Z

246

Relay placement problem in smart grid deployment  

Science Conference Proceedings (OSTI)

In this paper, we give an overview of power grid, smart grid, Advanced Metering Infrastructure (AMI), and the deployment cost analysis step by step. The importance between Relay Placement Problem (RPP) and the deployment cost in an AMI system is highlighted. ...

Wei-Lun Wang; Quincy Wu

2010-10-01T23:59:59.000Z

247

Optimization neural network for solving flow problems  

Science Conference Proceedings (OSTI)

This paper describes a neural network for solving flow problems, which are of interest in many areas of application as in fuel, hydro, and electric power scheduling. The neural network consist of two layers: a hidden layer and an output layer. The hidden ...

R. Perfetti

1995-09-01T23:59:59.000Z

248

Handling class imbalance problem in cultural modeling  

Science Conference Proceedings (OSTI)

Cultural modeling is an emergent and promising research area in social computing. It aims at developing behavioral models of groups and analyzing the impact of culture factors on group behavior using computational methods. Machine learning methods in ... Keywords: ROC analysis, class imbalance problem, classification, cultural modeling, sampling

Peng Su; Wenji Mao; Daniel Zeng; Xiaochen Li; Fei-Yue Wang

2009-06-01T23:59:59.000Z

249

Initialization of the Benders master problem using valid inequalities applied to fixed-charge network problems  

Science Conference Proceedings (OSTI)

Network problems concern the selection of arcs in a graph in order to satisfy, at minimum cost, some flow requirements, usually expressed in the form of node-node pair demands. Benders decomposition methods, based on the idea of partitioning of the initial ... Keywords: Benders decomposition, Fixed-charge network problem, Mixed integer programming, Refinery, Scheduling of crude oil, Valid inequalities

Georgios K. D. Saharidis; Maria Boile; Sotiris Theofanis

2011-06-01T23:59:59.000Z

250

Environmental WindowsEnvironmental Windows Real Problems and PotentialReal Problems and Potential  

E-Print Network (OSTI)

Environmental WindowsEnvironmental Windows Real Problems and PotentialReal Problems and Potential Window - a period during which dredging may occur Seasonal Restriction - a period during which dredging and effective management guidelines such as dredging windows..." #12;Schubel et al. 1979. A conceptual framework

US Army Corps of Engineers

251

Linear PDEs and eigenvalue problems corresponding to ergodic stochastic optimization problems on compact manifolds  

E-Print Network (OSTI)

We consider long term average or `ergodic' optimal control poblems with a special structure: Control is exerted in all directions and the control costs are proportional to the square of the norm of the control field with respect to the metric induced by the noise. The long term stochastic dynamics on the manifold will be completely characterized by the long term density $\\rho$ and the long term current density $J$. As such, control problems may be reformulated as variational problems over $\\rho$ and $J$. We discuss several optimization problems: the problem in which both $\\rho$ and $J$ are varied freely, the problem in which $\\rho$ is fixed and the one in which $J$ is fixed. These problems lead to different kinds of operator problems: linear PDEs in the first two cases and a nonlinear PDE in the latter case. These results are obtained through through variational principle using infinite dimensional Lagrange multipliers. In the case where the initial dynamics are reversible we obtain the result that the optimally controlled diffusion is also symmetrizable. The particular case of constraining the dynamics to be reversible of the optimally controlled process leads to a linear eigenvalue problem for the square root of the density process.

Joris Bierkens; Vladimir Y. Chernyak; Michael Chertkov; Hilbert J. Kappen

2013-03-01T23:59:59.000Z

252

An approximative inference method for solving ??SO satisfiability problems  

Science Conference Proceedings (OSTI)

This paper considers the fragment ??SO of second-order logic. Many interesting problems, such as conformant planning, can be naturally expressed as finite domain satisfiability problems of this logic. Such satisfiability problems are computationally ...

Hanne Vlaeminck; Joost Vennekens; Marc Denecker; Maurice Bruynooghe

2012-09-01T23:59:59.000Z

253

The DynCOAA algorithm for dynamic constraint optimization problems  

Science Conference Proceedings (OSTI)

Numerous problems in software coordination, operations research, manufacturing control and others can be transformed in constraint optimization problems (COPs). Moreover, most practical problems change constantly, requiring algorithms that can handle ... Keywords: ACO, distributed constraint optimization, dynamic

Koenraad Mertens; Tom Holvoet; Yolande Berbers

2006-05-01T23:59:59.000Z

254

A Heuristic Approach for Big Bucket Production Planning Problems  

E-Print Network (OSTI)

Oct 4, 2006 ... Multi-level production planning problems in which multiple items ... setup costs, lot-sizing problems seek a minimum-cost production plan that...

255

Simulation Problem Analysis and Research Kernel | Open Energy...  

Open Energy Info (EERE)

Simulation Problem Analysis and Research Kernel Jump to: navigation, search Tool Summary Name: Simulation Problem Analysis and Research Kernel AgencyCompany Organization:...

256

Many small consumers, one growing problem: Achieving energy savings...  

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

Many small consumers, one growing problem: Achieving energy savings for electronic equipment operating in low power modes Title Many small consumers, one growing problem: Achieving...

257

The robust vehicle routing problem with time windows  

E-Print Network (OSTI)

Oct 2, 2012 ... Abstract: This paper addresses the robust vehicle routing problem with time windows. We are motivated by a problem that arises in maritime...

258

design problem | OpenEI Community  

Open Energy Info (EERE)

27 27 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142229527 Varnish cache server design problem Home Dc's picture Submitted by Dc(15) Member 15 November, 2013 - 13:26 Living Walls ancient building system architect biomimicry building technology cooling cu daylight design problem energy use engineer fred andreas geothermal green building heat transfer heating living walls metabolic adjustment net zero pre-electricity Renewable Energy Solar university of colorado utility grid

259

Green's function of the cosmological thermalization problem  

E-Print Network (OSTI)

Energy release in the early Universe leads to spectral distortions of the cosmic microwave background (CMB) which in the future might allow probing different physical processes in the pre-recombination (z>~10^3) epoch. Depending on the energy injection history, the associated distortion partially thermalizes due to the combined action of Compton scattering, double Compton scattering and Bremsstrahlung emission, a problem that in general is hard to solve. Various analytic approximations describing the resulting distortion exist, however, for small distortions and fixed background cosmology the Green's function of the problem can be computed numerically. Here we show that this approach gives very accurate results for general thermal histories, allowing fast and quasi-exact computation of the spectral distortion given the energy release rate. Our method can thus be used to forecast possible constraints on early-universe physics obtained from future measurements of the CMB spectrum.

Chluba, Jens

2013-01-01T23:59:59.000Z

260

Ergonomics problems and solutions in biotechnology laboratories  

SciTech Connect

The multi-functional successful ergonomics program currently implemented at Lawrence Livermore National Laboratory (LLNL) will be presented with special emphasis on recent findings in the Biotechnology laboratory environment. In addition to a discussion of more traditional computer-related repetitive stress injuries and associated statistics, the presentation will cover identification of ergonomic problems in laboratory functions such as pipetting, radiation shielding, and microscope work. Techniques to alleviate symptoms and prevent future injuries will be presented.

Coward, T.W.; Stengel, J.W.; Fellingham-Gilbert, P.

1995-03-01T23:59:59.000Z

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


261

A Remark on the Kramers Problem  

E-Print Network (OSTI)

We present new point of view on the old problem, the Kramers problem. The passage from the Fokker-Planck equation to the Smoluchowski equation, including corrections to the Smoluchowski current, is treated through an asymptotic expansion of the solution of the stochastic dynamical equations. The case of an extremely weak force of friction is also discussed. KEY WORDS: Kramers problem; Klyatskin-Novikov theory; stochastic equation; current. 1. Evolution of a physical system can be ordered in multi-timescales. Details of evolution on short-time-scale do not need for description in a closed form of a system evolution on long-time-scale and appears on this scale only in an average form. The prototype of such kind physical systems is dissipative Brownian motion of a particle in an external potential field. In this problem, with the exception of extremely short characteristic time scales of random forces, there are two time scales: (1) time scales of a particle motion in an external field; (2) time scales of relaxation (rate of dissipation) of Brownian particle in a media. It is intuitively absolutely clear that, if the friction force is strong enough (time of free motion is extremely short), then probability distribution of a particle velocity to be rapidly relaxed to the Maxwell distribution and on this background a particle position will be undergoing to slow process of diffusion. In the following we deal with the consideration of approximate reduction of the Fokker-Planck equation for phase-space probability density to the Smoluchowski equation which deals with probability density of a particle position only. In the opposite case of extremely weak force of friction we have energy (or action)

Alex A. Samoletov

2003-01-01T23:59:59.000Z

262

Prof. Rich Kozick Some Logic Problems  

E-Print Network (OSTI)

. Problem 2 The Nellbuck Corp. has four boilers, A,B,C, and D. Boiler A can supply 50% of the steam to run process P, boiler B can supply 40%, boiler C can supply 40%, and boiler D can supply 50%. Devise a truth table that shows when there is enough steam to run the process. Assume A is "1" when boiler A is ready

Kozick, Richard J.

263

Upgrading ESP efficiency is a problem  

SciTech Connect

The twin problems of efficiency loss, coupled with capricious EPA regulatory changes, can create many difficulties for utilities that already have, or plan to install, electrostatic precipitators in their coal-fired stations. To cut the costs of retrofit and efficiency degradation, there are several off-the-shelf, computer-based, electronic-monitoring and -control systems that can either be individually operated or multiplexed remotely by means of today's state-of-the-art hardware and software. These are discussed.

Hurst, R.

1980-04-15T23:59:59.000Z

264

Age problem in holographic dark energy  

E-Print Network (OSTI)

We study the age problem of the universe with the holographic DE model introduced in [21], and test the model with some known old high redshift objects (OHRO). The parameters of the model have been constrained using the SNIa, CMB and BAO data set. We found that the age of the old quasar APM 08 279+5255 at z = 3.91 can be described by the model.

L. N. Granda; A. Oliveros; W. Cardona

2009-05-12T23:59:59.000Z

265

Problem and Preferred Management Practices Identification Workshop  

SciTech Connect

The goals for this workshop were: to introduce key players in the Appalachian basin oil industry to DOE's new Preferred Upstream Management Practices (PUMP) program; to explain the various elements of our two-year project in detail; to transfer technology through a series of short, invited talks; to identify technical problems and best management practices; and to recruit members for our Preferred Management Practices (PMP) Council.

Patchen, Douglas G.

2003-03-10T23:59:59.000Z

266

Slimhole frac pack tools overcome erosion problems  

SciTech Connect

The application of frac pack technology for stimulation and sand control in the Gulf of Mexico`s unconsolidated formations has steadily increased during the past several years. In addition, re-entry drilling has been one of the fastest growing development techniques used by operators for optimizing reservoir productivity. As such, smaller casing sizes are becoming more common in oil and gas producing wells. Gravel pack tools were being used for frac packing in 7-in. casing sizes and larger, but no tools were available to frac pack in the smaller 5-in. and 5{1/2}-in. casing. The erosion problems operators were experiencing in 7-in. gravel pack tools heightened concerns about fracturing through 5-in. tools with even smaller flow areas. Flow cutting in the 7-in. tools was so severe that it caused fluid communication between the gravel pack ports and the return flow holes in the crossover tool. This allowed fluid and proppant to return to the annulus above the packer, which could cause possible early screen-out and sticking of the crossover tool. The flow cutting could also reduce the tool`s pressure and tensile ratings. Any one of these problems could jeopardize the success of the frac pack operation. Therefore, an erosion resistant crossover tool for slimhole casing was developed to address these problems and optimize frac pack success.

Stout, G. [BJ Services, Tomball, TX (United States). Research and Development Center; Matte, T. [BJ Services, Lafayette, LA (United States); Rogers, B. [Marathon Oil Co., Lafayette, LA (United States)

1997-04-01T23:59:59.000Z

267

Projective metrizability problem and formal integrability  

E-Print Network (OSTI)

The projective metrizability problem can be formulated as follows: under what conditions the geodesics of a given spray coincide with the geodesics of some Finsler space, as oriented curves. In Theorem 3.8 we reformulate the projective metrizability problem for a spray in terms of a first order partial differential operator $P_1$ and a set of algebraic conditions on semi-basic 1-forms. We discuss the formal integrability of $P_1$ using two sufficient conditions provided by Cartan-K\\"ahler Theorem. We prove in Theorem 4.2 that the symbol of $P_1$ is involutive and hence one of the two conditions is always satisfied. In Theorem 4.3 we prove that there is only one obstruction to the second condition for the formal integrability of $P_1$, and this obstruction is due to the curvature tensor of the induced nonlinear connection. When the curvature obstruction is satisfied, the projective metrizability problem reduces to the discussion of the algebraic conditions, which as we show are always satisfied. Based on these...

Bucataru, Ioan

2011-01-01T23:59:59.000Z

268

Initial Value Problem in General Relativity  

E-Print Network (OSTI)

This article, written to appear as a chapter in "The Springer Handbook of Spacetime", is a review of the initial value problem for Einstein's gravitational field theory in general relativity. Designed to be accessible to graduate students who have taken a first course in general relativity, the article first discusses how to reformulate the spacetime fields and spacetime covariant field equations of Einstein's theory in terms of fields and field equations compatible with a 3+1 foliation of spacetime with spacelike hypersurfaces. It proceeds to discuss the arguments which show that the initial value problem for Einstein's theory is well-posed, in the sense that for any given set of initial data satisfying the Einstein constraint equations, there is a (maximal) spacetime solution of the full set of Einstein equations, compatible with the given set of data. The article then describes how to generate initial data sets which satisfy the Einstein constraints, using the conformal (and conformal thin sandwich) method, and using gluing techniques. The article concludes with comments regarding stability and long term behavior of solutions of Einstein's equations generated via the initial value problem.

James Isenberg

2013-04-07T23:59:59.000Z

269

The status of the solar neutrino problem  

Science Conference Proceedings (OSTI)

Perhaps the most outstanding discrepancy between prediction and measurements in current particle physics comes from the solar neutrino problem, in which a large deficit of high-energy solar neutrinos is observed. Many Nonstandard Solar Models have been invoked to try to reduce the predicted flux, but all have run into problems in trying to reproduce other measured parameters (e.g., the luminosity) of the Sun. Other explanations involving new physics such as neutrino decay and neutrino oscillations, etc. have also been proffered. Again, most of these explanations have been ruled out by either laboratory or astrophysical measurements. It appears that perhaps the most likely particle physics solution is that of matter enhanced neutrino oscillation, the Mikheyev-Smirnov-Wolfenstein (MSW) oscillations. Two new radiochemical gallium experiments, which have a low enough threshold to be sensitive to the dominant flux of low-energy p-p neutrinos, now also report a deficit and also favor a particle physics solution. The next generation of solar experiments promise to finally resolve the source of the ``solar neutrino problem`` by the end of this decade.

Bowles, T.J.

1993-12-01T23:59:59.000Z

270

Hans Bethe and the Global Energy Problems.  

E-Print Network (OSTI)

Bethe抯 view-point on the global energy problems is presented. Bethe claimed that the nuclear power is a necessity in future. Nuclear energetic must be based on breeder reactors. Bethe considered the non-proliferation of nuclear weapons as the main problem of long-range future of nuclear energetics. The solution of this problem he saw in heavy water moderated thermal breeders, using uranium-233, uranium-238 and thorium as a fuel. 1 My contacts with Bethe. I heard Bethe抯 name first time in 1947. I was the student of the 3rd course of the physical faculty of Moscow University. I was not satisfyed by the level of education there, especially by the teaching of theoretical physics all the best russian theoreticians Landau, Tamm, Leontovich and others were expelled from the University, because they did not share the official points of view of Marxist philosophy. After some doubts if I am able to be a theoretical physicist or not I decided to try to give up to Landau his theoretical minimum. I passed successfully the first entering exam on mathematics and Landau gave me the program of the whole minimum. That time among now well

Boris Ioffe

2005-01-01T23:59:59.000Z

271

Computationally efficient Bayesian inference for inverse problems.  

SciTech Connect

Bayesian statistics provides a foundation for inference from noisy and incomplete data, a natural mechanism for regularization in the form of prior information, and a quantitative assessment of uncertainty in the inferred results. Inverse problems - representing indirect estimation of model parameters, inputs, or structural components - can be fruitfully cast in this framework. Complex and computationally intensive forward models arising in physical applications, however, can render a Bayesian approach prohibitive. This difficulty is compounded by high-dimensional model spaces, as when the unknown is a spatiotemporal field. We present new algorithmic developments for Bayesian inference in this context, showing strong connections with the forward propagation of uncertainty. In particular, we introduce a stochastic spectral formulation that dramatically accelerates the Bayesian solution of inverse problems via rapid evaluation of a surrogate posterior. We also explore dimensionality reduction for the inference of spatiotemporal fields, using truncated spectral representations of Gaussian process priors. These new approaches are demonstrated on scalar transport problems arising in contaminant source inversion and in the inference of inhomogeneous material or transport properties. We also present a Bayesian framework for parameter estimation in stochastic models, where intrinsic stochasticity may be intermingled with observational noise. Evaluation of a likelihood function may not be analytically tractable in these cases, and thus several alternative Markov chain Monte Carlo (MCMC) schemes, operating on the product space of the observations and the parameters, are introduced.

Marzouk, Youssef M.; Najm, Habib N.; Rahn, Larry A.

2007-10-01T23:59:59.000Z

272

Survey: Covering problems in facility location: A review  

Science Conference Proceedings (OSTI)

In this study, we review the covering problems in facility location. Here, besides a number of reviews on covering problems, a comprehensive review of models, solutions and applications related to the covering problem is presented after Schilling, Jayaraman, ... Keywords: Covering problem, Facility location, Mathematical formulation, Survey

Reza Zanjirani Farahani; Nasrin Asgari; Nooshin Heidari; Mahtab Hosseininia; Mark Goh

2012-02-01T23:59:59.000Z

273

The twin Diffie-Hellman problem and applications  

Science Conference Proceedings (OSTI)

We propose a new computational problem called the twin Diffie-Hellman problem. This problem is closely related to the usual (computational) Diffie-Hellman problem and can be used in many of the same cryptographic constructions that are based on the Diffie-Hellman ...

David Cash; Eike Kiltz; Victor Shoup

2008-04-01T23:59:59.000Z

274

Using domain-independent problems for introducing formal methods  

Science Conference Proceedings (OSTI)

The key to the integration of formal methods into engineering practice is education. In teaching, domain-independent problems 梚.e., not requiring prior engineering background offer many advantages. Such problems are widely available, but ... Keywords: domain-independent problems, formal methods, functional predicate calculus, funmath, generic functionals, specification, teaching, word problems

Raymond Boute

2006-08-01T23:59:59.000Z

275

Advanced algorithms for coupled and inverse problems in electrical engineering  

Science Conference Proceedings (OSTI)

This paper presents some theoretical and numerical problems that arise in the analysis of coupled electromagnetic-thermal problems, and inverse problems in electromagnetic devices. The principal objective of the paper is to describe some computational ... Keywords: coupled fields, finite element method, inverse problems

Ion C鈘stea

2008-06-01T23:59:59.000Z

276

Public problems: Still waiting on the marketplace for solutions  

Science Conference Proceedings (OSTI)

This report addresses the need for government sponsored R and D to address real public problems. The motivation is that a public benefit of the money spent must be demonstrated. The areas identified as not having appropriate attention resulting in unmet public needs include healthcare cost, cost and benefits of regulations, infrastructure problems, defense spending misaligned with foreign policy objectives, the crime problem, energy impact on the environment, the education problem, low productivity growth industry sectors, the income distribution problem, the aging problem, the propagation of disease and policy changes needed to address the solution of these problems.

Gover, J. [Sandia National Labs., Albuquerque, NM (United States)] [Sandia National Labs., Albuquerque, NM (United States); Carayannis, E. [George Washington Univ., Washington, DC (United States)] [George Washington Univ., Washington, DC (United States); Huray, P.

1997-10-01T23:59:59.000Z

277

Studies in nonlinear problems of energy  

Science Conference Proceedings (OSTI)

Emphasis has been on combustion and flame propagation. The research program was on modeling, analysis and computation of combustion phenomena, with emphasis on transition from laminar to turbulent combustion. Nonlinear dynamics and pattern formation were investigated in the transition. Stability of combustion waves, and transitions to complex waves are described. Combustion waves possess large activation energies, so that chemical reactions are significant only in thin layers, or reaction zones. In limit of infinite activation energy, the zones shrink to moving surfaces, (fronts) which must be found during the analysis, so that (moving free boundary problems). The studies are carried out for limiting case with fronts, while the numerical studies are carried out for finite, though large, activation energy. Accurate resolution of the solution in the reaction zones is essential, otherwise false predictions of dynamics are possible. Since the the reaction zones move, adaptive pseudo-spectral methods were developed. The approach is based on a synergism of analytical and computational methods. The numerical computations build on and extend the analytical information. Furthermore, analytical solutions serve as benchmarks for testing the accuracy of the computation. Finally, ideas from analysis (singular perturbation theory) have induced new approaches to computations. The computational results suggest new analysis to be considered. Among the recent interesting results, was spatio-temporal chaos in combustion. One goal is extension of the adaptive pseudo-spectral methods to adaptive domain decomposition methods. Efforts have begun to develop such methods for problems with multiple reaction zones, corresponding to problems with more complex, and more realistic chemistry. Other topics included stochastics, oscillators, Rysteretic Josephson junctions, DC SQUID, Markov jumps, laser with saturable absorber, chemical physics, Brownian movement, combustion synthesis, etc.

Matkowsky, B.J.

1992-07-01T23:59:59.000Z

278

Used motor oil passes environmental problem  

SciTech Connect

Purposes of this study were to determine the amount of oil used, oil change practices, disposal methods involved, perceived harmfulness of various disposal methods, and attitudes toward recycling used motor oil. Survey was taken to verify claims made that the do-it-yourselfer (DIY), who changes his own automotive oil, has caused significant environmental problems by dumping the oil down sewers, on the ground, or into landfills as part of their trash. Results show that more than two-thirds of DIYs would save their oil for recycling if it were picked up at their house or if they had a suitable container for bringing it to a recycling center.

Brinkman, D.W.; Gottlieb, M.; Koelbel, K.

1982-08-09T23:59:59.000Z

279

Optimal regularity for the Signorini problem  

E-Print Network (OSTI)

We prove under general assumptions that solutions of the thin obstacle or Signorini problem in any space dimension achieve the optimal regularity $C^{1,1/2}$. This improves the known optimal regularity results by allowing the thin obstacle to be defined in an arbitrary $C^{1,\\beta}$ hypersurface, $\\beta>1/2$, additionally, our proof covers any linear elliptic operator in divergence form with smooth coefficients. The main ingredients of the proof are a version of Almgren's monotonicity formula and the optimal regularity of global solutions.

Guillen, Nestor

2009-01-01T23:59:59.000Z

280

Oscillation Solutions to Solar Neutrino Problem  

E-Print Network (OSTI)

The current status of oscillation solutions to the Solar Neutrino Problem is reviewed. Four oscillation solutions are discussed in the light of 708d Superkamiokande data: MSW, Just-So VO, VO with Energy-Independent Suppression (EIS) and Resonant-Spin-Flavor-Precession (RSFP). Only EIS VO is strongly disfavoured by the global rates, mostly due to the Homestake data. Vacuum oscillations give an interesting solution which explains high-energy excess of events observed by Superkamiokande and predicts {\\em semi-annual} seasonal variation of $Be$-neutrino flux. There are indications to these variations in the GALLEX and Homestake data. No direct evidence for oscillation is found yet.

V. Berezinsky

1999-04-07T23:59:59.000Z

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


281

Oscillation solutions to solar neutrino problem  

E-Print Network (OSTI)

The current status of oscillation solutions to the Solar Neutrino Problem is reviewed. Four oscillation solutions are discussed in the light of 708d Superkamiokande data: MSW, Just-So VO, VO with Energy-Independent Suppression (EIS) and Resonant-Spin-Flavor-Precession (RSFP). Only EIS VO is strongly disfavoured by the global rates, mostly due to the Homestake data. Vacuum oscillations give an interesting solution which explains high-energy excess of events observed by Superkamiokande and predicts {\\em semi-annual} seasonal variation of $Be$-neutrino flux. There are indications to these variations in the GALLEX and Homestake data. No direct evidence for oscillation is found yet.

Berezinsky, Veniamin Sergeevich

2000-01-01T23:59:59.000Z

282

Some problems THE Galois connection Clones and algebras The lattice of clones Completeness CSP Open problems Clones and Galois connections  

E-Print Network (OSTI)

Some problems THE Galois connection Clones and algebras The lattice of clones Completeness CSP Open aa #12;Some problems THE Galois connection Clones and algebras The lattice of clones Completeness CSP Completeness CSP Open problems Final remarks aa #12;Some problems THE Galois connection Clones and algebras

P枚schel, Reinhard

283

Hamiltonian Graphs and the Traveling Salesman Problem  

E-Print Network (OSTI)

A new characterization of Hamiltonian graphs using f-cutset matrix is proposed. A new exact polynomial time algorithm for the traveling salesman problem (TSP) based on this new characterization is developed. We then define so called ordered weighted adjacency list for given weighted complete graph and proceed to the main result of the paper, namely, the exact algorithm based on utilization of ordered weighted adjacency list and the simple properties that any path or circuit must satisfy. This algorithm performs checking of sub-lists, containing (p-1) entries (edge pairs) for paths and p entries (edge pairs) for circuits, chosen from ordered adjacency list in a well defined sequence to determine exactly the shortest Hamiltonian path and shortest Hamiltonian circuit in a weighted complete graph of p vertices. The procedure has intrinsic advantage of landing on the desired solution in quickest possible time and even in worst case in polynomial time. A new characterization of shortest Hamiltonian tour for a weighted complete graph satisfying triangle inequality (i.e. for tours passing through every city on a realistic map of cities where cities can be taken as points on a Euclidean plane) is also proposed. Finally, we discuss a novel classical algorithm for unstructured search and its effect on any of the NP-Complete problems.

Dhananjay P. Mehendale

2007-04-27T23:59:59.000Z

284

A Resolution of the Vacuum Energy Problem  

E-Print Network (OSTI)

A new vision of the beginning and expansion of our universe has produced a solution to the vacuum energy problem (also known as "cosmological constant problem"). A new dynamic of cellular spaces and a discrete time has space being produced by a process called spatial condensation (SC). With generic energy defined as Planck's constant times the rate of cellular space production, both the vacuum energy and mass energy contents contribute to the expansion in the ratio 10^123/1, the same ratio of predicted densities by quantum theory and our astronomers. However, unlike mass energy, vacuum energy, like Casimir vacuum energy, does not carry the attribute of mass and so does not gravitate. A geometric derivation of the vacuum energy expansion rate was followed by a second derivation in terms of the evolution of the contents, from radiation to matter to dark mass (not matter). With a new definition of cosmic time, the second derivation was shown to produce exactly the same expansion rate. Free of singularities and inflation, both derivations also produced reasonable values of the cosmological parameters and the second derivation produced a good fit to the supernova Ia data with no acceleration of the expansion rate.

Charles B. Leffert

2003-08-01T23:59:59.000Z

285

Quantum query complexity of some graph problems  

E-Print Network (OSTI)

Quantum algorithms for graph problems are considered, both in the adjacency matrix model and in an adjacency list-like array model. We give almost tight lower and upper bounds for the bounded error quantum query complexity of Connectivity, Strong Connectivity, Minimum Spanning Tree, and Single Source Shortest Paths. For example we show that the query complexity of Minimum Spanning Tree is in Theta(n^{3/2}) in the matrix model and in Theta(sqrt{nm}) in the array model, while the complexity of Connectivity is also in Theta(n^{3/2}) in the matrix model, but in Theta(n) in the array model. The upper bounds utilize search procedures for finding minima of functions under various conditions.

Christoph Durr; Mark Heiligman; Peter Hoyer; Mehdi Mhalla

2004-01-15T23:59:59.000Z

286

Longevity Problem of Sterile Neutrino Dark Matter  

E-Print Network (OSTI)

Sterile neutrino dark matter of mass O(1-10) keV decays into an active neutrino and an X-ray photon, and the non-observation of the corresponding X-ray line requires the sterile neutrino to be more long-lived than estimated based on the seesaw formula : the longevity problem. We show that, if one or more of the B-L Higgs fields are charged under a flavor symmetry (or discrete R symmetry), the split mass spectrum for the right-handed neutrinos as well as the required longevity is naturally realized. We provide several examples in which the predicted the X-ray flux is just below the current bound.

Hiroyuki Ishida; Kwang Sik Jeong; Fuminobu Takahashi

2013-09-12T23:59:59.000Z

287

Nuclear aspects of the solar neutrino problem  

E-Print Network (OSTI)

The present status of the nuclear reaction rates determining the solar neutrino flux is discussed. This includes the reaction rates for the two branching ratios of the three pp-chains involving the reactions 3He(3He,2p)4He and 3He(4He,gamma)7Be for the first branching, and 7Be(e-,nu_e)7Li and 7Be(p,gamma)7B for the second branching. Mainly we will concentrate on the basic nuclear reaction p + p -> D + e+ + nu_e of the pp-chains. We use a relativistic field theory model of the deuteron to calculate the low-energy cross section for this reaction. The theoretical prediction of the cross section obtained is about 2.9 times largerthan given in the conventional potential approach. The consequences of this new reaction rate for the solar neutrino problem will be presented and discussed.

H. Oberhummer; A. N. Ivanov; N. I. Troitskaya; M. Faber

1997-05-26T23:59:59.000Z

288

Inverse problems in remote sensing. Progress report  

DOE Green Energy (OSTI)

Research was conducted to improve on presently used techniques for mapping soundspeed variations in the earth by monitoring the return from seismic probes. For small variations in the propagation speed, a linear integral equation was derived for that soundspeed variation. The integral equation is sufficiently general to characterize the placement of sources and receivers. The integral equation was solved in closed form for most of the source-receiver configurations of practical interest. The problem of dealing with the imperfect and incomplete data obtained in the real world was also confronted. The realistically constrained solution was implemented on the computer for a source-receiver configuration commonly used in seismic profiling. This latter project has dominated much of the research effort over the recent contract period.

Bleistein, N.

1977-05-16T23:59:59.000Z

289

Strategies in Symmetric Kolkata Restaurant Problem  

E-Print Network (OSTI)

The Quantum Kolkata restaurant problem is a multiple-choice version of the quantum minority game, where a set of n non-communicating players have to chose between one of m choices. A payoff is granted to the players that make a unique choice. It has previously been shown that shared entanglement and quantum operations can aid the players to coordinate their actions and acquire higher payoffs than is possible with classical randomization. In this paper the initial quantum state is expanded to a family of GHZ-type states and strategies are discussed in terms of possible final outcomes. It is shown that the players individually seek outcomes that maximize the collective good.

Puya Sharif; Hoshang Heydari

2012-12-30T23:59:59.000Z

290

R Symmetry and the Mu Problem  

E-Print Network (OSTI)

A natural origin for the mu and B parameters of weak scale supersymmetric theories is proposed, applicable to any supersymmetry breaking messenger scale between the weak and Planck scales. Although quite general, it requires supersymmetric interactions to respect an R symmetry with definite quantum numbers, and it requires some new scale of symmetry breaking. The required R symmetry distinguishes the Higgs boson from the sneutrino, preserves baryon number in operators of dimension four and five, and contains R parity so that the lightest superpartner is stable. This origin for mu works for a variety of mediation mechanisms, including gauge mediation, gaugino mediation, and boundary condition breaking of supersymmetry. In any of these mediation schemes, our mechanism leads to a real B parameter, and the supersymmetric CP problem is solved. This R symmetry may naturally arise from supersymmetric theories in higher dimensions.

Lawrence J. Hall; Yasunori Nomura; Aaron Pierce

2002-04-04T23:59:59.000Z

291

Current problems in plasma spray processing  

SciTech Connect

This detailed report summarizes 8 contributions from a thermal spray conference that was held in late 1991 at Brookhaven National Laboratory (Upton, Long Island, NY, USA). The subject of ``Plasma Spray Processing`` is presented under subject headings of Plasma-particle interactions, Deposit formation dynamics, Thermal properties of thermal barrier coatings, Mechanical properties of coatings, Feed stock materials, Porosity: An integrated approach, Manufacture of intermetallic coatings, and Synchrotron x-ray microtomographic methods for thermal spray materials. Each section is intended to present a concise statement of a specific practical and/or scientific problem, then describe current work that is being performed to investigate this area, and finally to suggest areas of research that may be fertile for future activity.

Berndt, C.C.; Brindley, W.; Goland, A.N.; Herman, H.; Houck, D.L.; Jones, K.; Miller, R.A.; Neiser, R.; Riggs, W.; Sampath, S.; Smith, M.; Spanne, P. [State Univ. of New York, Stony Brook, NY (United States). Thermal Spray Lab.

1991-12-31T23:59:59.000Z

292

Current problems in plasma spray processing  

SciTech Connect

This detailed report summarizes 8 contributions from a thermal spray conference that was held in late 1991 at Brookhaven National Laboratory (Upton, Long Island, NY, USA). The subject of Plasma Spray Processing'' is presented under subject headings of Plasma-particle interactions, Deposit formation dynamics, Thermal properties of thermal barrier coatings, Mechanical properties of coatings, Feed stock materials, Porosity: An integrated approach, Manufacture of intermetallic coatings, and Synchrotron x-ray microtomographic methods for thermal spray materials. Each section is intended to present a concise statement of a specific practical and/or scientific problem, then describe current work that is being performed to investigate this area, and finally to suggest areas of research that may be fertile for future activity.

Berndt, C.C.; Brindley, W.; Goland, A.N.; Herman, H.; Houck, D.L.; Jones, K.; Miller, R.A.; Neiser, R.; Riggs, W.; Sampath, S.; Smith, M.; Spanne, P. (State Univ. of New York, Stony Brook, NY (United States). Thermal Spray Lab.)

1991-01-01T23:59:59.000Z

293

Solar neutrinos and the solar composition problem  

E-Print Network (OSTI)

Standard solar models (SSM) are facing nowadays a new puzzle: the solar composition problem. New determinations of solar metal abundances lead SSM calculations to conflict with helioseismological measurements, showing discrepancies that extend from the convection zone to the solar core and can not be easily assigned to deficiencies in the modelling of the solar convection zone. We present updated solar neutrino fluxes and uncertainties for two SSM with high (old) and low (new) solar metallicity determinations. The uncertainties in iron and carbon abundances are the largest contribution to the uncertainties of the solar neutrino fluxes. The uncertainty on the ^14N+p -> ^15O+g rate is the largest of the non-composition uncertainties to the CNO neutrino fluxes. We propose an independent method to help identify which SSM is the correct one. Present neutrino data can not distinguish the solar neutrino predictions of both models but ongoing measurements can help to solve the puzzle.

Carlos Pena-Garay; Aldo Serenelli

2008-11-16T23:59:59.000Z

294

Solving the problems facing the electric utilities  

SciTech Connect

The dimensions of the current problems of attracting capital for utilities investment, of achieving more efficient utilization of capacity, of siting and construction of new power plants, and of utilities receiving a return on their investment large enough to enable them to continue their service to American consumers are examined. Federal actions that are being taken to help get the utilities out of their current state of malaise are described. The author concludes that positive electric power load management, through a system of cost-based pricing incentives and load controls, can achieve a balanced future both for total electricity usage and for peak demand. This would minimize the consumption of scarce fossil fuels in electricity generation, moderate the future need for construction of new capacity, improve utility revenues, and eventually reduce the need for rate increases to maintain utility viability. The FEA feels that is a reasonable, attainable objective for substantial electrification of the economy beyond 1985. (MCW)

Hill, J.A.

1975-01-01T23:59:59.000Z

295

Algae control problems and practices workshop  

SciTech Connect

Western water resources are continuously facing increased demand from industry and the public. Consequently, many of these resources are required to perform multiple tasks as they cycle through the ecosystem. Many plants and animals depend upon these resources for growth. Algae are one group of plants associated with nutrient and energy cycles in many aquatic ecosystems. Although most freshwater algae are microscopic in size, they are capable of dominating and proliferating to the extent that the value of the water resource for both industrial and domestic needs is compromised. There is a great diversity of aquatic environments and systems in which algae may be found, and there are many varieties of treatment and control techniques available to reduce the impacts of excessive growth. This workshop was organized to exchange information about these control problems and practices.

Pryfogle, P.A. [Idaho National Engineering Lab., Idaho Falls, ID (United States); Ghio, G. [Pacific Gas and Electric Co., San Francisco, CA (United States)

1996-09-01T23:59:59.000Z

296

Liquid hydrogen flow problems in Kiwi reactors  

DOE Green Energy (OSTI)

The Kiwi series of reactors were the first ones tested in the US Rover Program in the development of nuclear rocket engines for space propulsion. The early experiments with liquid hydrogen showed that parallel flow systems were prone to uneven flow distributions and violent fluctuations in pressure and flow that were capable of destroying a reactor core. Kiwi flow distribution problems were solved by using multiple feed lines into the nozzle cooling system and carefully balancing impedance among them. The violent pressure and flow fluctuations were eliminated after their cause was identified as resonance phenomena driven by the response to flow disturbances of heat transfer through a superheated hydrogen layer. Smooth flow operations were assured by rapidly bringing operating pressures beyond several times the critical pressure of hydrogen. After this initial rough start, solid core nuclear rocket engines successfully passed milestones of achievements during the remainder of the Rover program.

Thurston, R.S.

1992-09-01T23:59:59.000Z

297

Solar neutrinos and the solar composition problem  

E-Print Network (OSTI)

Standard solar models (SSM) are facing nowadays a new puzzle: the solar composition problem. New determinations of solar metal abundances lead SSM calculations to conflict with helioseismological measurements, showing discrepancies that extend from the convection zone to the solar core and can not be easily assigned to deficiencies in the modelling of the solar convection zone. We present updated solar neutrino fluxes and uncertainties for two SSM with high (old) and low (new) solar metallicity determinations. The uncertainties in iron and carbon abundances are the largest contribution to the uncertainties of the solar neutrino fluxes. The uncertainty on the ^14N+p -> ^15O+g rate is the largest of the non-composition uncertainties to the CNO neutrino fluxes. We propose an independent method to help identify which SSM is the correct one. Present neutrino data can not distinguish the solar neutrino predictions of both models but ongoing measurements can help to solve the puzzle.

Pena-Garay, Carlos

2008-01-01T23:59:59.000Z

298

The Solar Neutrino Problem - An Update  

E-Print Network (OSTI)

The $^8$B solar neutrino flux as measured by Super-Kamiokande is consistent with the $^{37}$Ar production rate in $^{37}$Cl at Homestake. GALLEX and SAGE, continue to observe $^{71}$Ge production rates in $^{71}$Ga that are consistent with the minimal signal expected from the solar luminosity. The observed $^8$B solar neutrino flux is in good agreement with that predicted by the standard solar model of Dar and Shaviv with nuclear reaction rates that are supported by recent measurements of nuclear fusion cross sections at low energies. The measurements of Super-Kamiokande, SAGE and GALLEX suggest that the expected the pep, $^7$Be and NO solar neutrino fluxes are strongly suppressed. This can be explained by neutrino oscillations and the Mikheyev-Smirnov-Wolfenstein effect. Since neither a flavor change, nor a terrestrial variation, nor a spectral distortion of the $^8$B solar neutrino flux has been observed yet, the solar neutrino problem does not provide conclusive evidence for neutrino properties beyond the standard electroweak model. The deviations of the experimental results from those predicted by the standard solar models may reflect the approximate nature of of solar models and of our knowledge of nuclear reaction rates, radiation transport and particle diffusion in dense stellar plasmas. Only future observations of spectral distortions, or terrestrial modulation or flavor change of solar neutrinos in solar neutrino experiments, such as Super-Kamiokande, SNO, Borexino and HELLAZ will be able to establish that neutrino properties beyond the minimal standard electroweak model are responsible for the solar neutrino problem.

Arnon Dar; Giora Shaviv

1998-08-11T23:59:59.000Z

299

Heated muds solve squeezing-salt problems  

Science Conference Proceedings (OSTI)

Squeezing salts have been responsible for major drilling problems in many areas of the world for over half a century. In NAM's area of operations, they occur primarily in the Zechstein group of evaporites. They are responsible for problems such as stuck pipe during drilling and casing failure during both drilling and casing failure during both drilling and production, sometimes as much as 12 years after drilling. Since 1960, some US $170 million (at 1992 drilling costs) have been spent redrilling wells with failed casing strings. In 1991, NAM was associated with a Billiton project to drill 2 wells for the solution mining of magnesium and potassium salts. Gauge holes were a prerequisite to identify the objective salts by electric logging. Excellent results were achieved by drilling with a heated salt mud that had been saturated on surface to downhole conditions. The heating requirements for the Billiton project were modest, as the top of the squeezing salt occurred at approximately 1,500 m (4,920 ft), requiring a circulating temperature of 45 C (113 F) to achieve the necessary saturation level. However, in NAM's operations, the top of the squeezing salt generally occurs between 2.500 m and 3,000 m (8,200 ft and 9,850 ft), requiring temperatures on the order of 70 C (158 F). Despite the need for higher temperatures, the success of the Billiton project prompted NAM to introduce the heating system on a trial basis. To date eight wells have been drilled using the system, resulting in the drilling of a virtual gauge hole with successful cementations being achieved in each case.

Muecke, N.B. (Nederlandse Aardolie, Maatschappij (Netherlands))

1993-11-01T23:59:59.000Z

300

An Omniscient Scheduling Oracle for Systems with Harmonic Periods Alia Atlas and Azer Bestavros  

E-Print Network (OSTI)

, the characteristics of task solvers and providers as well as the process of offering jobs. Based on this analysis and limitations for companies applying Pico-Jobs. The article contributes a new concept for conducting open #12 and structured tasks which cannot be solved automatically that we call Pico-Jobs. In this paper a new method

Texas at Arlington, University of

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301

Int. Conf. on Computational Methods for Coupled Problems in Science and Engineering COUPLED PROBLEMS 2009  

E-Print Network (OSTI)

PROBLEM OF DIFFERENT THERMAL-HYDRAULIC MODELS ARISING IN TWO-PHASE FLOW CODES FOR NUCLEAR REACTORS A the components of a nuclear reactor. 1 INTRODUCTION We have been considering in a series of papers the coupling industrial motivation, such a coupling arises for the simulation of nuclear reactors when different two

Chalons, Christophe

302

Using Constraint Satisfaction Problem approach to solve human resource allocation problems in cooperative health services  

Science Conference Proceedings (OSTI)

In developing countries, the increasing utilization of health services, due to a great life expectancy, is followed by a reduction in incomes from the public health system and from private insurance companies, to the payment of medical procedures. Beyond ... Keywords: Backtracking search algorithm, Constraint Satisfaction Problem, Cooperative services, Heuristics, Human resource allocation

Cicero Ferreira Fernandes Costa Filho; Dayse Aparecida Rivera Rocha; Marly Guimar鉫s Fernandes Costa; Wagner Coelho de Albuquerque Pereira

2012-01-01T23:59:59.000Z

303

On the inverse problem of entropy maximizations (Corresp.)  

Science Conference Proceedings (OSTI)

The inverse isoperimetric problem of the entropy functional is considered in this Correspondence. This problem can be stated as follows: Given a known probability density function (pdf), what prior constraints are needed in order for this pdf to be the ...

J. Noonan; N. Tzannes; T. Costello

1976-01-01T23:59:59.000Z

304

The Cumulus Parameterization Problem: Past, Present, and Future  

Science Conference Proceedings (OSTI)

A review of the cumulus parameterization problem is presented with an emphasis on its conceptual aspects covering the history of the underlying ideas, major problems existing at present, and possible directions and approaches for future climate ...

Akio Arakawa

2004-07-01T23:59:59.000Z

305

Trading off space for passes in graph streaming problems  

Science Conference Proceedings (OSTI)

Data stream processing has recently received increasing attention as a computational paradigm for dealing with massive data sets. While major progress has been achieved for several fundamental data sketching and statistics problems, there are many problems ...

Camil Demetrescu; Irene Finocchi; Andrea Ribichini

2006-01-01T23:59:59.000Z

306

Solving Radial Topology Constrained Problems with Evolutionary Algorithms  

Science Conference Proceedings (OSTI)

We report key algorithmic specific features involved in the evolutionary radial network problem solution. We focus on the dimensionality problem of large-scale networks and on the singularities of the radial topology search space. We (1) report the difficulties ...

P. M. S. Carvalho; L. A. F. M. Ferreira; L. M. F. Barruncho

1998-11-01T23:59:59.000Z

307

On the analytic solutions of the nonhomogeneous Blasius problem  

Science Conference Proceedings (OSTI)

In this article a totally analytic solution of the nonhomogeneous Blasius problem is obtained using the homotopy analysis method (HAM). This solution converges for 0= Keywords: 65-xx, Analytic solution, Blasius problem, Homotopy analysis method

Fathi M. Allan; Muhammed I. Syam

2005-10-01T23:59:59.000Z

308

A hybrid heuristic algorithm for the rectangular packing problem  

Science Conference Proceedings (OSTI)

A hybrid heuristic algorithm for the two-dimensional rectangular packing problem is presented. This algorithm is mainly based on divide-and-conquer and greedy strategies. The computational results on a class of benchmark problems have shown that the ...

Defu Zhang; Ansheng Deng; Yan Kang

2005-05-01T23:59:59.000Z

309

Applications of machine learning: matching problems to tasks and methods  

Science Conference Proceedings (OSTI)

The terminology of Machine Learning and Data Mining methods does not always allow a simple match between practical problems and methods. While some problems look similar from the user's point of view, but require different methods to be solved, some ...

Maarten Van Someren; Tanja Urban?i?

2005-12-01T23:59:59.000Z

310

Problems and methods for multiproduct inventory control in production conditions  

Science Conference Proceedings (OSTI)

Problems and methods for control of multiproduct inventory of finished product in the conditions of fixed and random demand and problems of in-process storage of components, billets, and accessories for assembling finished products are considered. Special ...

E. N. Khobotov

2011-12-01T23:59:59.000Z

311

Maintenance scheduling problems as benchmarks for constraint algorithms  

Science Conference Proceedings (OSTI)

The paper focuses on evaluating constraint satisfaction search algorithms on application based random problem instances. The application we use is a well‐studied problem in the electric power industry: optimally scheduling preventive ...

Daniel Frost; Rina Dechter

1999-09-01T23:59:59.000Z

312

Initial-Value Problems for Ordinary Differential Equations - CECM  

E-Print Network (OSTI)

... ' &. $. %. Initial-Value Problems for ODE's. Problem. Approximating the solution y(t) to the ODE y (t) = f(t, y), a ? t ? b, subject to an initial condition y(a) = ?.

313

Stability in the Stefan problem with surface tension (I)  

E-Print Network (OSTI)

We develop a high-order energy method to prove asymptotic stability of flat steady surfaces for the Stefan problem with surface tension - also known as the Stefan problem with Gibbs-Thomson correction.

Hadzic, Mahir

2008-01-01T23:59:59.000Z

314

Charney's Problem for Baroclinic Instability Applied to Barotropic Instability  

Science Conference Proceedings (OSTI)

It is suggested that barotropically unstable easterly jets may be approximated by broken line profiles. It is then possible to use solutions to the Charney problem for baroclinic instability in order to solve the barotropic problem. Results are ...

R. S. Lindzen; A. J. Rosenthal; B. Farrell

1983-04-01T23:59:59.000Z

315

Problem Statement: Energy Holes Energy Profiling & Proactive Reconfiguration: Overview  

E-Print Network (OSTI)

Problem Statement: Energy Holes Energy Profiling & Proactive Reconfiguration: Overview Holes the Energy Hole Problem of Nonuniform Node Distribution in Wireless Sensor Networks.", MASS 2006 [2 路 Inherent nodes redundancy Spatially correlated energy consumption Energy holes are common in WSN Sink

Suri, Neeraj

316

A discrete BGK approximation for strongly degenerate parabolic problems  

E-Print Network (OSTI)

A discrete BGK approximation for strongly degenerate parabolic problems with boundary conditions F strongly degenerate hyperbolic--parabolic equations with initial boundary condition. We prove a priori -- strongly degenerate parabolic equations -- singular perturbation problems -- BGK models 1 Introduction

317

On Massively Parallel Algorithm for Nonlinear Stochastic Network Problems  

E-Print Network (OSTI)

We develop an algorithm for solving nonlinear two-stage stochastic problems with network recourse. The algorithm is based on the framework of row-action methods. The problem is formulated by replicating the first-stage ...

Nielson, Soren S.

318

Inverse Optimization: An Application to the Capacitated Plant Location Problem  

E-Print Network (OSTI)

Inverse optimization refers to the fact that each time a Lagrangean derived from a given mathematical programming problem is solved, it produces an optimal solution to some problem with a different right hand side. This ...

Bitran, Gabriel R.

319

OPEC or a basic problem in source networks  

Science Conference Proceedings (OSTI)

The problem of determining the achievable rate region for an arbitrary source network with one "helper" is still unsolved. Csisz醨 and the author have shown that it reduces to the one-parameter entropy characterization problem (OPEC), treated in ...

J. Korner

1984-01-01T23:59:59.000Z

320

A multiscale framework for Bayesian inference in elliptic problems  

E-Print Network (OSTI)

The Bayesian approach to inference problems provides a systematic way of updating prior knowledge with data. A likelihood function involving a forward model of the problem is used to incorporate data into a posterior ...

Parno, Matthew David

2011-01-01T23:59:59.000Z

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


321

The twin bilinear diffie-Hellman inversion problem and applications  

Science Conference Proceedings (OSTI)

We propose a new computational problem and call it the twin bilinear Diffie-Hellman inversion (BDHI) problem. Inspired by the technique proposed by Cash, Kiltz and Shoup, we have developed a new trapdoor test which enables us to prove that the twin BDHI ... Keywords: bilinear diffie-Hellman inversion problem, identity-based encryption, identity-based key encapsulation, trapdoor test, twin bilinear diffie-Hellman inversion problem

Yu Chen; Liqun Chen

2010-12-01T23:59:59.000Z

322

LITTLEWOOD TYPE PROBLEMS ON SUB ARCS Peter ... - CECM  

E-Print Network (OSTI)

LITTLEWOOD TYPE. PROBLEMS ON SUB ARCS. Peter Borwein. Simon Fraser University Centre for. Constructive and Experimental. Mathematics.

323

Banks-Financial-Insurance - Electronic Message Center Problems  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents the investigation of electronic message center problems at an investment firm.

2003-12-31T23:59:59.000Z

324

Approximate solution of a Cauchy problem for the Helmholtz equation  

E-Print Network (OSTI)

of radiation (e.g. a light emitting diode) is a problem of frequent occurrence. As a rule, experimental

325

Optimal Control of Free Boundary Problems with Surface ...  

Science Conference Proceedings (OSTI)

... Up, Optimal Control of Free Boundary Problems with Surface Tension Effects. Harbir Antil Department of Mathematical Sciences ...

2013-11-18T23:59:59.000Z

326

Modeling Direct and Inverse Problems in Ferritic Heat-Exchanger ...  

Science Conference Proceedings (OSTI)

Symposium, Data Analytics for Materials Science and Manufacturing. Presentation Title, Modeling Direct and Inverse Problems in Ferritic Heat- Exchanger Tubes.

327

An effective heuristic algorithm for the maximum satisfiability problem  

Science Conference Proceedings (OSTI)

Stochastic local search algorithms (SLS) have been increasingly applied to approximate solutions of the weighted maximum satisfiability problem (MAXSAT), a model for solutions of major problems in AI and combinatorial optimization. While MAXSAT instances ... Keywords: Bose-Einstein distribution, Extremal Optimization, Heuristic search, MAXSAT, Problem solving

Mohamed El Mena; Mohamed Batouche

2006-06-01T23:59:59.000Z

328

Solving Satisfiability Problems by the Ground-State Quantum Computer  

E-Print Network (OSTI)

A quantum algorithm is proposed to solve the Satisfiability problems by the ground-state quantum computer. The scale of the energy gap of the ground-state quantum computer is analyzed for the 3-bit Exact Cover problem. The time cost of this algorithm on the general SAT problems is discussed.

Wenjin Mao

2005-06-23T23:59:59.000Z

329

SEARCH AND WITNESS PROBLEMS IN GROUP THEORY VLADIMIR SHPILRAIN  

E-Print Network (OSTI)

SEARCH AND WITNESS PROBLEMS IN GROUP THEORY VLADIMIR SHPILRAIN Abstract. Decision problems with the property P, find a proof of the fact that O indeed has the property P. On the third hand(?!), search a conjuga- tor. In this survey our focus is on various search problems in group theory, including the word

Shpilrain, Vladimir

330

A cutting plane algorithm for the capacitated facility location problem  

Science Conference Proceedings (OSTI)

The Capacitated Facility Location Problem (CFLP) is to locate a set of facilities with capacity constraints, to satisfy at the minimum cost the order-demands of a set of clients. A multi-source version of the problem is considered ... Keywords: Capacitated facility location problem, Facet-enumeration, Mixed dicut inequalities

Pasquale Avella; Maurizio Boccia

2009-05-01T23:59:59.000Z

331

A New Duality Approach to Solving Concave Vector Maximization Problems  

Science Conference Proceedings (OSTI)

We introduce a special class of monotonic functions with the help of support functions and polar sets, and use it to construct a scalarized problem and its dual for a vector optimization problem. The dual construction allows us to develop a new method ... Keywords: Duality, Multiobjective problem, Polar set, Weak efficient solution

Luc Dinh The; Phong Thai Quynh; Volle Michel

2006-11-01T23:59:59.000Z

332

CLASSICAL MECHANICS: THE THREE-BODY PROBLEM ZI CHONG KAO  

E-Print Network (OSTI)

CLASSICAL MECHANICS: THE THREE-BODY PROBLEM ZI CHONG KAO Abstract. The Three-Body Problem is one of the oldest unsolved problems of classical mechanics. It arose as a natural extension of the Two-Body Prob of numerous techniques in classical mechan- ics as well as dynamical systems. Understanding the Three

May, J. Peter

333

Plowing with precedence: A variant of the windy postman problem  

Science Conference Proceedings (OSTI)

In winter, a common problem is to determine the route that a snowplow should take in order to minimize the distance traveled. We propose a variant of this arc routing problem that is motivated by the fact that deadhead travel over streets that have already ... Keywords: Arc routing, Precedence, Snow plowing, Windy postman problem

Benjamin Dussault; Bruce Golden; Chris Gro隦; Edward Wasil

2013-04-01T23:59:59.000Z

334

Solving satisfiability problems by the ground-state quantum computer  

Science Conference Proceedings (OSTI)

A quantum algorithm is proposed to solve the satisfiability (SAT) problems by the ground-state quantum computer. The scale of the energy gap of the ground-state quantum computer is analyzed for the 3-bit exact cover problem. The time cost of this algorithm on the general SAT problems is discussed.

Mao Wenjin [Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA and 20 Hearthstone Drive, Edison, New Jersey 08820 (United States)

2005-11-15T23:59:59.000Z

335

Problem structuring methods in military command and control  

Science Conference Proceedings (OSTI)

In an authorized military hierarchy organization, the procedure of problem solving must be co-ordinated with the tasks of planning, directing, and controlling. In most combat situations, problem solving knowledge is acquired from an expert (commander) ... Keywords: Knowledge management, Knowledge-based system architecture, Military command and control, Problem structuring methods, Soft operational research

Shu-Hsien Liao

2008-10-01T23:59:59.000Z

336

Investigation of Flue Gas Desulfurization Chemical Process Problems  

Science Conference Proceedings (OSTI)

An understanding of flue gas desulfurization process chemistry is crucial in troubleshooting problems in operating FGD systems. This report discusses a variety of problems and solutions associated with process chemistry for 25 different wet FGD systems, including lime/limestone and double alkali processes. Among the problems addressed are SO2 removal, mist eliminator scaling, poor solids dewatering, and water management.

1990-09-10T23:59:59.000Z

337

Linear and nonlinear degenerate boundary value problems in Besov spaces  

Science Conference Proceedings (OSTI)

The boundary value problems for linear and nonlinear degenerate differential-operator equations in Banach-valued Besov spaces are studied. Several conditions for the separability of linear elliptic problems are given. Moreover, the positivity and the ... Keywords: Banach-valued Besov spaces, Boundary value problems, Differential-operator equations, Interpolation of Banach spaces, Operator-valued multipliers

Veli B. Shakhmurov; Ravi P. Agarwal

2009-03-01T23:59:59.000Z

338

Inverse problem of time-dependent heat sources numerical reconstruction  

Science Conference Proceedings (OSTI)

Abstract: This work studies the inverse problem of reconstructing a time-dependent heat source in the heat conduction equation using the temperature measurement specified at an internal point. Problems of this type have important applications in several ... Keywords: 35R30, 49J20, Green function, Heat source, Inverse problem, Landweber iteration, Numerical results

Liu Yang; Mehdi Dehghan; Jian-Ning Yu; Guan-Wei Luo

2011-04-01T23:59:59.000Z

339

Maximal covering location problem (MCLP) with fuzzy travel times  

Science Conference Proceedings (OSTI)

This paper presents a fuzzy maximal covering location problem (FMCLP) in which travel time between any pair of nodes is considered to be a fuzzy variable. A fuzzy expected value maximization model is designed for such a problem. Moreover, a hybrid algorithm ... Keywords: Credibility theory, Facility location, Fuzzy travel times, Maximal covering location problem (MCLP), Simulation

Soheil Davari; Mohammad Hossein Fazel Zarandi; Ahmad Hemmati

2011-11-01T23:59:59.000Z

340

Fuzzy expert system for solving lost circulation problem  

Science Conference Proceedings (OSTI)

Lost circulation is the most common problem encountered while drilling oil wells. This paper describes a distributed fuzzy expert system, called Smart-Drill, aimed in helping petroleum engineers to diagnose and solve lost circulation problems. To represent ... Keywords: Finite ordinal scales, Fuzzy algebra, Fuzzy expert system, Knowledge representation, Lost circulation problem, Multi-sets, Oil well drilling

Leonid Sheremetov; Ildar Batyrshin; Denis Filatov; Jorge Martinez; Hector Rodriguez

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "addthis problem oracle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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341

Comparing Metaheuristic Algorithms for Sonet Network Design Problems  

Science Conference Proceedings (OSTI)

This paper considers two problems that arise in the design of optical telecommunication networks when a ring-based topology is adopted, namely the SONET Ring Assignment Problem and the Intraring Synchronous Optical Network Design Problem. We show that ... Keywords: SONET ring, graph partitioning, metaheuristics, optical networks

Roberto Aringhieri; Mauro Dell'Amico

2005-01-01T23:59:59.000Z

342

Neutron Stars and the Cosmological Constant Problem  

E-Print Network (OSTI)

The gravitational aether theory is a modification of general relativity that decouples vacuum energy from gravity, and thus can potentially address the cosmological constant problem. The classical theory is distinguishable from general relativity only in the presence of relativistic pressure (or vorticity). Since the interior of neutron stars has high pressure and as their mass and radius can be measured observationally, they are the perfect laboratory for testing the validity of the aether theory. In this paper, we solve the equations of stellar structure for the gravitational aether theory and find the predicted mass-radius relation of non-rotating neutron stars using two different realistic proposals for the equation of state of nuclear matter. We find that the maximum neutron star mass predicted by the aether theory is 12% - 16% less than the maximum mass predicted by general relativity assuming these two equations of state. We also show that the effect of aether is similar to modifying the equation of state in general relativity. The effective pressure of the neutron star given by the aether theory at a fiducial density differs from the values given by the two nuclear equations of state to an extent that can be constrained using future gravitational wave observations of neutron stars in compact systems. This is a promising way to test the aether theory if further progress is made in constraining the equation of state of nuclear matter in densities above the nuclear saturation density.

Farbod Kamiab; Niayesh Afshordi

2011-04-29T23:59:59.000Z

343

Quantum mechanics problems in observer's mathematics  

Science Conference Proceedings (OSTI)

This work considers the ontology, guiding equation, Schrodinger's equation, relation to the Born Rule, the conditional wave function of a subsystem in a setting of arithmetic, algebra and topology provided by Observer's Mathematics (see www.mathrelativity.com). Observer's Mathematics creates new arithmetic, algebra, geometry, topology, analysis and logic which do not contain the concept of continuum, but locally coincide with the standard fields. Certain results and communications pertaining to solutions of these problems are provided. In particular, we prove the following theorems: Theorem I (Two-slit interference). Let {Psi}{sub 1} be a wave from slit 1, {Psi}{sub 2} - from slit 2, and {Psi} = {Psi}{sub 1}+{Psi}{sub 2}. Then the probability of {Psi} being a wave equals to 0.5. Theorem II (k-bodies solution). For W{sub n} from m-observer point of view with m>log{sub 10}((2 Multiplication-Sign 10{sup 2n}-1){sup 2k}+1), the probability of standard expression of Hamiltonian variation is less than 1 and depends on n,m,k.

Khots, Boris; Khots, Dmitriy [Compressor Controls Corp, Des Moines, Iowa (United States); iMath Consulting LLC, Omaha, Nebraska (United States)

2012-11-06T23:59:59.000Z

344

Coefficient adaptive triangulation for strongly anisotropic problems  

Science Conference Proceedings (OSTI)

Second order elliptic partial differential equations arise in many important applications, including flow through porous media, heat conduction, the distribution of electrical or magnetic potential. The prototype is the Laplace problem, which in discrete form produces a coefficient matrix that is relatively easy to solve in a regular domain. However, the presence of anisotropy produces a matrix whose condition number is increased, making the resulting linear system more difficult to solve. In this work, we take the anisotropy into account in the discretization by mapping each anisotropic region into a ``stretched`` coordinate space in which the anisotropy is removed. The region is then uniformly triangulated, and the resulting triangulation mapped back to the original space. The effect is to generate long slender triangles that are oriented in the direction of ``preferred flow.`` Slender triangles are generally regarded as numerically undesirable since they tend to cause poor conditioning; however, our triangulation has the effect of producing effective isotropy, thus improving the condition number of the resulting coefficient matrix.

D`Azevedo, E.F.; Romine, C.H.; Donato, J.M.

1996-01-01T23:59:59.000Z

345

Statistics of the Kolkata Paise Restaurant Problem  

E-Print Network (OSTI)

We study the dynamics of a few stochastic learning strategies for the 'Kolkata Paise Restaurant' problem, where N agents choose among N equally priced but differently ranked restaurants every evening such that each agent tries get to dinner in the best restaurant (each serving only one customer and the rest arriving there going without dinner that evening). We consider the learning strategies to be similar for all the agents and assume that each follow the same probabilistic or stochastic strategy dependent on the information of the past successes in the game. We show that some 'naive' strategies lead to much better utilization of the services than some relatively 'smarter' strategies. We also show that the service utilization fraction as high as 0.80 can result for a stochastic strategy, where each agent sticks to his past choice (independent of success achieved or not; with probability decreasing inversely in the past crowd size). The numerical results for utilization fraction of the services in some limiti...

Ghosh, Asim; Mitra, Manipushpak; Chakrabarti, Bikas K

2010-01-01T23:59:59.000Z

346

An Obstacle-avoiding Minimum Variation B-spline Problem  

E-Print Network (OSTI)

We study the problem of computing a planar curve, restricted to lie between two given polygonal chains, such that the integral of the square of arc-length derivative of curvature along the curve is minimized. We introduce the Minimum Variation B-spline problem which is a linearly constrained optimization problem over curves defined by Bspline functions only. An empirical investigation indicates that this problem has one unique solution among all uniform quartic B-spline functions. Furthermore, we prove that, for any B-spline function, the convexity properties of the problem are preserved subject to a scaling and translation of the knot sequence defining the B-spline. 1

Tomas Berglund; Inge S鰀erkvist

2003-01-01T23:59:59.000Z

347

Geometric bipartitioning problem and its applications to VLSI  

Science Conference Proceedings (OSTI)

We identify a new problem called geometric bipartitioning that is useful in VLSI layout design. Given a floorplan with rectilinear modules, the problem is to partition the floor by a staircase (monotone increasing) channel from one corner of the floor ... Keywords: NP-complete, VLSI, absolute value, branch-and-bound, circuit layout CAD, classical graph bisection problem, computational complexity, designated nodes, edge weights, floorplan, geometric bipartitioning problem, geometry, graph theory, heuristic algorithm, hierarchical decomposition, integer edge weights, layout design, monotone increasing, network routing, rectilinear modules, routing, search problems, staircase, weighted permutation graph

P. S. Dasgupta; A. K. Sen; S. C. Nandy; B. B. Bhattacharya

1996-01-01T23:59:59.000Z

348

On a solvability of hydro-mechanical problem based on contact problem with visco-plastic friction in Bingham rheology  

Science Conference Proceedings (OSTI)

This paper deals with the solvability and numerical solution of contact problem with a local visco-plastic friction in the visco-plastic Bingham rheology. The model problem discussed represents a simple hydro-mechanical model of the global project on ... Keywords: Bingham rheology, Contact problems with friction, FEM, Geomechanics, Hydromechanics, Variational inequalities, Visco-plasticity

Ji? Nedoma; Lubo Tom釟ek

2008-08-01T23:59:59.000Z

349

Injection, injectivity and injectability in geothermal operations: problems and possible solutions. Phase I. Definition of the problems  

DOE Green Energy (OSTI)

The following topics are covered: thermodynamic instability of brine, injectivity loss during regular production and injection operations, injectivity loss caused by measures other than regular operations, heat mining and associated reservoir problems in reinjection, pressure maintenance through imported make-up water, suggested solutions to injection problems, and suggested solutions to injection problems: remedial and stimulation measures. (MHR)

Vetter, O.J.; Crichlow, H.B.

1979-02-14T23:59:59.000Z

350

SUPERMASSIVE BLACK HOLE BINARY EVOLUTION IN AXISYMMETRIC GALAXIES: THE FINAL PARSEC PROBLEM IS NOT A PROBLEM  

SciTech Connect

During a galaxy merger, the supermassive black hole (SMBH) in each galaxy is thought to sink to the center of the potential and form an SMBH binary; this binary can eject stars via three-body scattering, bringing the SMBHs ever closer. In a static spherical galaxy model, the binary stalls at a separation of about a parsec after ejecting all the stars in its loss cone-this is the well-known final parsec problem. Earlier work has shown that the centrophilic orbits in triaxial galaxy models are key in refilling the loss cone at a high enough rate to prevent the black holes from stalling. However, the evolution of binary SMBHs has never been explored in axisymmetric galaxies, so it is not clear if the final parsec problem persists in these systems. Here we use a suite of direct N-body simulations to follow SMBH binary evolution in galaxy models with a range of ellipticity. For the first time, we show that mere axisymmetry can solve the final parsec problem; we find the SMBH evolution is independent of N for an axis ratio of c/a = 0.8, and that the SMBH binary separation reaches the gravitational radiation regime for c/a = 0.75.

Khan, Fazeel Mahmood [Department of Space Science, Institute of Space Technology, P.O. Box 2750 Islamabad (Pakistan); Holley-Bockelmann, Kelly [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); Berczik, Peter; Just, Andreas, E-mail: khan@ari.uni-heidelberg.de, E-mail: just@ari.uni-heidelberg.de, E-mail: berczik@ari.uni-heidelberg.de, E-mail: k.holley@vanderbilt.edu [Astronomisches Rechen-Institut, Zentrum fuer Astronomie, University of Heidelberg, Moenchhof-Strasse 12-14, D-69120 Heidelberg (Germany)

2013-08-20T23:59:59.000Z

351

Geothermal resources in California: potentials and problems  

DOE Green Energy (OSTI)

The technology, cost and potential of geothermal resources in California are examined. The production of power from dry stream fields is expanding in Northern California, at The Geysers, at costs that compare favorably with alternate means of generation. The possibility exists that economic production of power can be started in the Imperial Valley, but numerous issues remain to be resolved; chief among them is the demonstration that commercially valuable aquifers indeed exist. The production of demineralized water from the geothermal fluids of the Imperial Valley depends, among other things, upon the identification of other sources of water for power plant cooling, or for reservoir reinjection, should it be necessary to avoid subsidence. It would appear that water production, without the income-producing capability of associated power generation, is not economically reasonable. The pace of geothermal development at the Geysers could probably be accelerated perhaps offering the opportunity for maintenance of adequate generating reserves should their nuclear construction program be delayed. The unknown factors and risks involved seem to preclude the Imperial Valley resource from being immediately effective in improving the power generation picture in Southern California. However, in the next decade, geothermal power could provide a useful energy increment, perhaps 10 percent of peak load. Associated water production could offer relief for the Imperial Valley in its predicted water quality problem. The pace of public and private development in the Imperial Valley seems incommensurately slow in relation to the potential of the resource. Geothermal power and water production is not intrinsically pollution-free, but appropriate environmental protection is possible.

Goldsmith, M.

1971-12-01T23:59:59.000Z

352

A class of ejecta transport test problems  

Science Conference Proceedings (OSTI)

Hydro code implementations of ejecta dynamics at shocked interfaces presume a source distribution function ofparticulate masses and velocities, f{sub 0}(m, v;t). Some of the properties of this source distribution function have been determined from extensive Taylor and supported wave experiments on shock loaded Sn interfaces of varying surface and subsurface morphology. Such experiments measure the mass moment of f{sub o} under vacuum conditions assuming weak particle-particle interaction and, usually, fully inelastic capture by piezo-electric diagnostic probes. Recently, planar Sn experiments in He, Ar, and Kr gas atmospheres have been carried out to provide transport data both for machined surfaces and for coated surfaces. A hydro code model of ejecta transport usually specifies a criterion for the instantaneous temporal appearance of ejecta with source distribution f{sub 0}(m, v;t{sub 0}). Under the further assumption of separability, f{sub 0}(m,v;t{sub 0}) = f{sub 1}(m)f{sub 2}(v), the motion of particles under the influence of gas dynamic forces is calculated. For the situation of non-interacting particulates, interacting with a gas via drag forces, with the assumption of separability and simplified approximations to the Reynolds number dependence of the drag coefficient, the dynamical equation for the time evolution of the distribution function, f(r,v,m;t), can be resolved as a one-dimensional integral which can be compared to a direct hydro simulation as a test problem. Such solutions can also be used for preliminary analysis of experimental data. We report solutions for several shape dependent drag coefficients and analyze the results of recent planar dsh experiments in Ar and Xe.

Hammerberg, James E [Los Alamos National Laboratory; Buttler, William T [Los Alamos National Laboratory; Oro, David M [Los Alamos National Laboratory; Rousculp, Christopher L [Los Alamos National Laboratory; Morris, Christopher [Los Alamos National Laboratory; Mariam, Fesseha G [Los Alamos National Laboratory

2011-01-31T23:59:59.000Z

353

Problems of Silica Scaling at Cerro Prieto Geothrmal Power Station  

DOE Green Energy (OSTI)

In the Cerro Prieto Geothermal field, where the predominant fluid in the reservoir is water, they have had problems with silica and other deposits in the first exploration wells as well as in production wells. Scaling problems have also been encountered in silencers, cyclone separators, drains, water pipes, etc. Some scale problems have also been encountered in the turbine blades of the geothermal electric plant. Most of these problems have been solved by corrective procedures which, in some cases, have turned into routine. Scale deposition is a problem that certainly diminishes the useful capacity of geothermal fluids with water predominance, but it does not actually endanger the installations, since this problem is under control.

Mercado, S.; Guiza, J.

1976-01-01T23:59:59.000Z

354

Using dual decomposition for solving problems involving data uncertainty |  

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

dual decomposition for solving problems involving data uncertainty dual decomposition for solving problems involving data uncertainty August 14, 2013 Tweet EmailPrint Many applications mdash; energy, routing, scheduling, and production planning, for example mdash; involve problems in which some or all of the data may not be known when decisions under uncertainty must be made. In such cases, approximations with stochastic mixed-integer programming models are often used. Two approaches have been suggested to address such problems: dual decomposition (DD) and branch-and-price (BP). Both approaches divide the problem into two or more subproblems, together with linear constraints that enforce agreement between solutions to the different problems through a series of iterations. Unfortunately, both approaches also suffer from lack

355

Solving chemical equilibrium problems using nonlinear optimization. [NEWT  

DOE Green Energy (OSTI)

This report describes a program that will solve general chemical equilibrium problems of the type found in synthetic fossil-fuel plants. The program described here will also solve chemical equilibrium problems that are associated with unit operations that are found in refineries and ammonia plants. The most common problem encountered involves finding the equilibrium composition of a mixture, given feed composition, and the desired equilibrium temperature and pressure. Another less common problem requires the computation of the equilibrium temperature as well as the equilibrium composition for an adiabatic or other nonisothermal reaction. A constrained multidimensional Newton's method is used to solve the common isothermal equilibrium problem. The nonisothermal problem is solved by nesting the same multidimensional Newton's method inside a one-dimensional Newton's method that iterates on temperature. The program allows a gas phase with up to 20 reacting gases and the possibility of one solid phase (graphitic carbon).

Parkinson, W.J.; Sanderson, J.G.

1984-06-01T23:59:59.000Z

356

A Conjecture Related to Sylvester's Problem Author(s ... - CECM  

E-Print Network (OSTI)

http://www.jstor.org. A Conjecture Related to Sylvester's Problem. Author(s): Peter Borwein and Michael Edelstein. Source: The American Mathematical Monthly,...

357

Complexity of the positive semidefinite matrix completion problem ...  

E-Print Network (OSTI)

This follows directly from Lemma 2.2 combined with Theorem. 3.2: By Lemma 2.2 , ..... The real positive defi- nite completion problem: cycle completability.

358

New Benchmark Instances for the Steiner Problem in Graphs  

E-Print Network (OSTI)

Sep 26, 2001 ... New Benchmark Instances for the Steiner Problem in Graphs. Isabel Rosseti ( rosseti ***at*** inf.puc-rio.br) Marcus Poggi de Arag鉶 (poggi...

359

Revised Benchmark Problem for modeling of metal flow and metal ...  

Science Conference Proceedings (OSTI)

The literature is scarce when it comes to benchmark problems for MHD flow in a cell and those cases which are available often suffer from insufficient level of...

360

Exact Algorithms for Arc and Node Routing Problems  

E-Print Network (OSTI)

Oct 8, 2013 ... For both problems, there are a set of customers spread over a given graph, ... the total number of labels used during the dynamic programming.

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


361

Optimization Online - Solving the integrated airline recovery problem ...  

E-Print Network (OSTI)

Column-and-row generation achieves an improvement in solution runtimes by reducing the problem size and thereby achieving ... Entry Submitted: 12/03/2012

362

A class of moving boundary problems arising in drying processes  

Science Conference Proceedings (OSTI)

Keywords: drying processes, heat and mass transfer, moving boundary value problems, multiphase flows in porous media, quasilinear parabolic systems, wellposedness of solutions

M. Ilic

1992-10-01T23:59:59.000Z

363

On DC. optimization algorithms for solving minmax flow problems ?  

E-Print Network (OSTI)

Jun 17, 2011 ... Email: ldmuu@math.ac.vn. Le Quang Thuy ..... programming and DCA revisited with DC models of real world nonconvex optimization problems...

364

On DC. optimization algorithms for solving minmax flow problems  

E-Print Network (OSTI)

Jun 16, 2011 ... math.ac.vn) ... (Difference of convex functions) programming and DCA revisited with DC models of real world nonconvex optimization problems,...

365

Solving large scale polynomial convex problems on \\ell_1/nuclear ...  

E-Print Network (OSTI)

Oct 24, 2012 ... Solving large scale polynomial convex problems on \\ell_1/nuclear norm balls by randomized first-order algorithms. Aharon Ben-Tal (abental...

366

Partially affine control problems: second order conditions and a well ...  

E-Print Network (OSTI)

Oct 17, 2011 ... Partially affine control problems: second order conditions and a well-posed shooting algorithm. M. Soledad Aronna(aronna ***at***...

367

Optimization problems on the rank and inertia of the Hermitian ...  

E-Print Network (OSTI)

and in the investigation of Hermitian parts of complex matrices. The problem ... H stand for the sets of all m n complex matrices and all ...... Conf., Albuquerque,.

368

Matrix-free Interior Point Method for Compressed Sensing Problems  

E-Print Network (OSTI)

Aug 27, 2012 ... Matrix-free Interior Point Method for Compressed Sensing Problems. Kimon Fountoulakis (K.Fountoulakis ***at*** sms.ed.ac.uk) Jacek Gondzio...

369

Fast Local Search for the Maximum Independent Set Problem  

E-Print Network (OSTI)

Jan 29, 2008 ... Fast Local Search for the Maximum Independent Set Problem. Diogo V. Andrade (diogo ***at*** google.com) Mauricio G. C. Resende (mgcr...

370

The History of the Problem - CECM - Simon Fraser University  

E-Print Network (OSTI)

The History of the Problem. [Annotate] .... [an error occurred while processing this directive] Let us return to the history of projective planes. Now that we have a...

371

Solving the Prize-collecting Rural Postman Problem  

E-Print Network (OSTI)

recycling bins by a private entity. Additionally, problems of this type might appear as subprob- lems in the pricing stage when addressing capacitated ERPs by...

372

Control problems with mixed constraints and application to an ...  

E-Print Network (OSTI)

problem where a utility type function is to be minimized. By an adapted penalization ..... the capital with constant rate a. Finally, the evolution of the capital...

373

Problem-solving in technology education as an approach to ...  

Science Conference Proceedings (OSTI)

Nov 6, 2008 ... which was the statement of the problem; (2) a goal state, which was the .... financial and curriculum outcomes (Department of the Environment...

374

ANALYSIS OF MILP TECHNIQUES FOR THE POOLING PROBLEM ...  

E-Print Network (OSTI)

Some variants of pooling problem have cost of per unit flow in arcs, profit per ...... and Analytics in the Oil and Gas Industry, International Series in Operations Re-.

375

Optimization Online - Modeling the Mobile Oil Recovery Problem as ...  

E-Print Network (OSTI)

Feb 6, 2009 ... The goal of the MOR optimization Problem (MORP) is to optimize both the oil extraction and the travel costs. We describe several formulations...

376

Benchmark problems in which equality plays the major role  

SciTech Connect

We have recently heard rumors that researchers are again studying paramodulation [Wos87] in the context of strategy for its control. In part to facilitate such research, and in part to provide test problems for evaluating other approaches to equality-oriented reasoning, we offer in this article a set of benchmark problems in which equality plays the dominant role. The test problems are taken from group theory, Robbins algebra, combinatory logic, and other areas. For each problem, we include appropriate clauses and comment as to its status with regard to provability by an unaided automated reasoning program.

Lusk, E.; Wos, L.

1992-05-01T23:59:59.000Z

377

Benchmark problems in which equality plays the major role  

SciTech Connect

We have recently heard rumors that researchers are again studying paramodulation (Wos87) in the context of strategy for its control. In part to facilitate such research, and in part to provide test problems for evaluating other approaches to equality-oriented reasoning, we offer in this article a set of benchmark problems in which equality plays the dominant role. The test problems are taken from group theory, Robbins algebra, combinatory logic, and other areas. For each problem, we include appropriate clauses and comment as to its status with regard to provability by an unaided automated reasoning program.

Lusk, E.; Wos, L.

1992-01-01T23:59:59.000Z

378

Transmission Problem Between Two Herschel-Bulkley Fluids  

E-Print Network (OSTI)

The paper is devoted to the study of transmission problem between two Herschel-Bulkley fluids with different viscosities, yield limits and power law index.

Farid Messelmi

2011-02-28T23:59:59.000Z

379

Efficient algorithms for bipartite matching problems with preferences.  

E-Print Network (OSTI)

??Matching problems involve a set of participants, where each participant has a capacity and a subset of the participants rank a subset of the others (more)

Sng, Colin Thiam Soon

2008-01-01T23:59:59.000Z

380

Flexible Solutions to Maritime Inventory Routing Problems with ...  

E-Print Network (OSTI)

simulation study for a liquefied natural gas (LNG) ship routing problem with uncertainty in sailing time and production rate is presented in Halvorsen-Weare et al.

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


381

ROCK INSTRUMENTATION PROBLEMS EXPERIENCED DURING IN-SITU HEATER TESTS  

E-Print Network (OSTI)

and R. Haught, Instrumentation evaluation, calibration, and27 - 30,1979. ROCK INSTRUMENTATION PROBLEMS EXPERIENCEDdiscussed here,l INSTRUMENTATION AND DATA ACQUISITION SYSTEM

Binnall, E.

2012-01-01T23:59:59.000Z

382

Traveling Salesman Problem Formulations with $N \\log N$ Number ...  

E-Print Network (OSTI)

Feb 13, 2013 ... Traveling Salesman Problem Formulations with $N \\log N$ Number of Binary Variables. Thomas A. Pogiatzis(tp309 ***at*** cam.ac.uk)

383

A Riemann-Hilbert problem for skew-orthogonal polynomials  

E-Print Network (OSTI)

We find a local $(d+1) \\times (d+1)$ Riemann-Hilbert problem characterizing the skew-orthogonal polynomials associated to the partition function of the Gaussian Orthogonal Ensemble of random matrices with a potential function of degree $d$. Our Riemann-Hilbert problem is similar to a local $d \\times d$ Riemann-Hilbert problem found by Kuijlaars and McLaughlin characterizing the bi-orthogonal polynomials. This gives more motivation for finding methods to compute asymptotics of high order Riemann-Hilbert problems, and brings us closer to finding asymptotics of the skew-orthogonal polynomials.

V. U. Pierce

2006-10-19T23:59:59.000Z

384

A parallel between two classes of pricing problems in transportation ...  

E-Print Network (OSTI)

Jan 5, 2009 ... A parallel between two classes of pricing problems in transportation and economics. G閞aldine Heilporn (Geraldine.Heilporn ***at*** hec.ca)

385

1 Relaxations of combinatorial problems via association schemes  

E-Print Network (OSTI)

1.6.1 Relation to a relaxation of the quadratic assignment problem ..... that the matrix W belongs to a coherent configuration with d = 12 relations, ... community.

386

Matrix-free Interior Point Method for Compressed Sensing Problems  

E-Print Network (OSTI)

ages. The FPC AS CG solves problem (5a). The code of FPC AS CG package ...... Uncertainty principles and ideal atomic decomposition. IEEE Trans. Inf. Theory...

387

Cosmic age problem revisited in the holographic dark energy model  

E-Print Network (OSTI)

Because of an old quasar APM 08279 + 5255 at $z=3.91$, some dark energy models face the challenge of the cosmic age problem. It has been shown by Wei and Zhang [Phys. Rev. D {\\bf 76}, 063003 (2007)] that the holographic dark energy model is also troubled with such a cosmic age problem. In order to accommodate this old quasar and solve the age problem, we propose in this paper to consider the interacting holographic dark energy in a non-flat universe. We show that the cosmic age problem can be eliminated when the interaction and spatial curvature are both involved in the holographic dark energy model.

Cui, Jinglei

2010-01-01T23:59:59.000Z

388

Solvable problems - Titan expands the realm of the possible ...  

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

Solvable problems Titan expands the realm of the possible Jim Pearce - May 03, 2013 Supercomputers like Jaguar and Titan allow researchers to simulate complex processes such as the...

389

A Stochastic Vendor Managed Inventory Problem and Its Variations .  

E-Print Network (OSTI)

??We analyze the problem of distributing units of a product, by a capacitated vehicle, from one storage location (depot) to multiple retailers. The demand processes (more)

Balun, Pairote

2004-01-01T23:59:59.000Z

390

Optimization Online - Coherent Risk Measures in Inventory Problems  

E-Print Network (OSTI)

Dec 19, 2005 ... Abstract: We analyze an extension of the classical multi-period, single-item, linear cost inventory problem where the objective function is a...

391

Solving the Global Space-Group Optimization Problem by ...  

Science Conference Proceedings (OSTI)

This problem requires a global space-group optimization (GSGO) of the total energy of a solid as a function of the crystal degrees of freedom. Evolutionary...

392

Solving Security Constrained Optimal Power Flow Problems by a ...  

E-Print Network (OSTI)

The optimal power flow (OPF) problem describes a minimum cost electricity gener- ation model that takes into account ...... Electricity Market, 2008. EEM 2008 .

393

A Polyhedral Approach to the Single Row Facility Layout Problem  

E-Print Network (OSTI)

problem of arranging facilities on a line, while minimizing a weighted sum of the ..... heuristic, are an essential component of branch-and-cut algorithms. We now.

394

Optimization Online - The Delivery Man Problem with Time Windows  

E-Print Network (OSTI)

Sep 1, 2009 ... Abstract: In this paper, a variant of the Traveling Salesman Problem with Time Windows is considered, which consists in minimizing the sum of...

395

Swamy class of two-stage linear stochastic programming problems  

E-Print Network (OSTI)

Jul 28, 2006 ... 1 ? ? is polynomial in ?, log(??1), dimensions of the problem and a certain ..... Continuous Optimization: Current Trends and Applications, pp.

396

Stochastic binary problems with simple penalties for capacity ...  

E-Print Network (OSTI)

capacity constraints, using simple penalties for capacities violations. In particular, we take a closer look at the knapsack problem with weights and capacity...

397

An Exact Algorithm for Power Grid Interdiction Problem with Line ...  

E-Print Network (OSTI)

Jan 10, 2012 ... An Exact Algorithm for Power Grid Interdiction Problem with Line Switching. Long Zhao(longzhao ***at*** mail.usf.edu) Bo Zeng(bzeng ***at***...

398

The opportunistic replacement problem: analysis and case studies  

E-Print Network (OSTI)

Jan 22, 2009 ... We show that when maintenance occasions are fixed, the remaining problem can ... Category 2: Applications -- OR and Management Sciences...

399

Computational challenges in the relativistic few-nucleon problem  

E-Print Network (OSTI)

I discuss computational challenges in the relativistic few-nucleon problem and the resolution of some of these challenges. I also discuss the outlook for the future.

W. N. Polyzou

2013-12-12T23:59:59.000Z

400

Continuum computational methods to study chemical problems in solution  

Science Conference Proceedings (OSTI)

Computational methods using the continuum approximation to describe chemical problems in solution are reviewed. The various computational strategies thus far proposed for the basic model

J. Tomasi

1995-01-01T23:59:59.000Z

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


401

Solar Neutrinos: Solved and Unsolved Problems John N. Bahcall  

E-Print Network (OSTI)

Chapter 10 Solar Neutrinos: Solved and Unsolved Problems John N. Bahcall Institute for Advanced study solar neutrinos? What does the combined standard model (solar plus electroweak) predict for solar neutrinos? Why are the calculations of neutrino fluxes robust? What are the three solar neutrino problems

Bahcall, John

402

Hybrid solution algorithms for task scheduling problem with moving executors  

Science Conference Proceedings (OSTI)

Heuristic algorithms for solving the task scheduling problem with moving executors to minimize the sum of completion times are considered. The corresponding combinatorial optimization problem is formulated. Three hybrid solution algorithms are introduced. ... Keywords: Artificial intelligence, Flexible manufacturing systems, Scheduling algorithms

Jerzy J髗efczyk

2006-03-01T23:59:59.000Z

403

An electromagnetism metaheuristic for solving the Maximum Betweenness Problem  

Science Conference Proceedings (OSTI)

In this paper we present an electromagnetism (EM) metaheuristic for solving NP hard Maximum Betweenness Problem (MBP). A new encoding scheme with appropriate objective functions is implemented. Specific representation of the individuals enables the EM ... Keywords: Betweenness problem, Combinatorial optimization, Electromagnetism-like mechanism

Vladimir Filipovi?; Aleksandar Kartelj; Dragan Mati?

2013-02-01T23:59:59.000Z

404

AUTOMATIC SOLUTION OF OPTIMUM DESIGN PROBLEMS ON A DIGITAL COMPUTER  

SciTech Connect

A description is given of a method suitable for the automatic solution of certain optimum design problems on a digital computer for cases where the number of constraints imposed on the design is not greater than the number of design variables. The problem is transformed to one requiring the minimization or maximization of an unconstrained function, for which a gradient method is used. (auth)

Lawrence, B.R.

1962-03-01T23:59:59.000Z

405

Minimising the delta test for variable selection in regression problems  

Science Conference Proceedings (OSTI)

The problem of selecting an adequate set of variables from a given data set of a sampled function becomes crucial by the time of designing the model that will approximate it. Several approaches have been presented in the literature although recent studies ... Keywords: FBS, GAs, delta test, forward-backward search, genetic algorithms, hybrid algorithms, parallel architectures, regression problems, tabu search, variable selection

Alberto Guillen; Dusan Sovilj; Amaury Lendasse; Fernando Mateo; Ignacio Rojas

2008-03-01T23:59:59.000Z

406

An Unstable Elliptic Free Boundary Problem arising in Solid Combustion  

E-Print Network (OSTI)

An Unstable Elliptic Free Boundary Problem arising in Solid Combustion R. Monneau Ecole Nationale in solid combustion. The maximal solution and every local minimizer of the energy are regular, that is, {u combustion, singularity, unstable problem, Aleksandrov reflection, unique blow-up limit, second variation

Monneau, R茅gis

407

Generalized planted (l,d)-motif problem with negative set  

Science Conference Proceedings (OSTI)

Finding similar patterns (motifs) in a set of sequences is an important problem in Computational Molecular Biology. Pevzner and Sze [18] defined the planted (l,d)-motif problem as trying to find a length-l pattern that occurs in ...

Henry C. M. Leung; Francis Y. L. Chin

2005-10-01T23:59:59.000Z

408

Memory access problems in block cyclic reduction on vector computers  

Science Conference Proceedings (OSTI)

In the present paper, modifications of block cyclic reduction are introduced by which the often significant memory access problems of this method on vector computers can be drastically reduced. The modifications are discussed in the context of an interval ... Keywords: Block cyclic reduction, interval arithmetics, memory access problems, vector computers

Hartmut Schwandt

1991-06-01T23:59:59.000Z

409

Underwater vehicles: The minimum time problem Department of Mathematics  

E-Print Network (OSTI)

Underwater vehicles: The minimum time problem M. Chyba Department of Mathematics 2565 McCarthy Mall for a class of underwater vehicles. We focus on the situation of initial and final configurations at rest In this paper we pursue the analysis of the minimum time problem for a special class of underwater vehicles, see

Sontag, Eduardo

410

Underwater vehicles: The minimum time problem Department of Mathematics  

E-Print Network (OSTI)

Underwater vehicles: The minimum time problem M. Chyba Department of Mathematics 2565 McCarthy Mall for a class of underwater vehicles. We focus on the situation of initial and final configurations at rest the analysis of the minimum time problem for a special class of underwater vehicles, see [5], [6] for previous

Sussmann, Hector

411

Solving "Hard" Satisfiability Problems Using GridSAT Wahid Chrabakh  

E-Print Network (OSTI)

Solving "Hard" Satisfiability Problems Using GridSAT Wahid Chrabakh and Rich Wolski Department a set of "hard" and previously unsolved set of satisfiability prob- lems. We enhance the GridSAT solver. Solving such challenging problems and enabling new scientific results is an integral part of the grid

Mitchell, David G.

412

Automated Configuration of Algorithms for Solving Hard Computational Problems  

E-Print Network (OSTI)

Automated Configuration of Algorithms for Solving Hard Computational Problems by Frank Hutter Dipl-performing algorithms for many hard problems are highly parameterized. Selecting the best heuristics and tuning studies the automation of this important part of algorithm design: the configuration of discrete algorithm

Hutter, Frank

413

Robust Approximate Optimization for Large Scale Planning Problems Marek Petrik  

E-Print Network (OSTI)

power-plant management, and managing blood inventories [Powell, 2007]. While these problems are easy is extremely general in terms of its expressive power 颅 almost every problem can be mapped easily into an MDP. This is generally at- tributed to the "curse of dimensionality" 颅 the exponential growth of the size of the state

Shenoy, Prashant

414

Clique problem, cutting plane proofs and communication complexity  

Science Conference Proceedings (OSTI)

Motivated by its relation to the length of cutting plane proofs for the Maximum Biclique problem, we consider the following communication game on a given graph G with maximum bipartite clique size K. Two parties separately receive disjoint subsets A, ... Keywords: Clique problem, Communication complexity, Computational complexity, Cutting plane proof

Stasys Jukna

2012-10-01T23:59:59.000Z

415

Iterative improvement to solve the parcel hub scheduling problem  

Science Conference Proceedings (OSTI)

This paper presents iterative improvement algorithms to solve the parcel hub scheduling problem (PHSP). The PHSP is combinatorial optimization problem that consists of scheduling a set of inbound trailers to a small number of unload docks. At the unload ... Keywords: Cross docks, Genetic algorithms, Local search, Parcel delivery industry, Simulated annealing

Douglas L. McWilliams

2010-08-01T23:59:59.000Z

416

Parallel algorithms for solution of air pollution inverse problems  

Science Conference Proceedings (OSTI)

Parallelization of Marchuk's method for solution of inverse problems based on adjoint equations and dual representation of contaminant concentration functional is considered here. There are N individual adjoint equations independently solved at each ... Keywords: air pollution, domain decomposition, functional decomposition, inverse problems, parallel algorithms

Alexander Starchenko; Elena Panasenko

2010-05-01T23:59:59.000Z

417

Solving the tool switching problem with memetic algorithms  

Science Conference Proceedings (OSTI)

The tool switching problem (ToSP) is well known in the domain of flexible manufacturing systems. Given a reconfigurable machine, the ToSP amounts to scheduling a collection of jobs on this machine (each of them requiring a different set of tools to be ... Keywords: Evolutionary Algorithm, Flexible Manufacturing System, Local Search, Memetic Algorithm, Tool Switching Problem

Jhon edgar Amaya; Carlos Cotta; Antonio j. Fern醤dez-leiva

2011-10-01T23:59:59.000Z

418

STABILITY OF EQUILIBRIA FOR THE STEFAN PROBLEM WITH SURFACE TENSION  

E-Print Network (OSTI)

by a liquid and a solid phase, say water and ice, that initially occupy the regions 1 0 and 2 0 Abstract. We characterize the equilibrium states for the two-phase Stefan problem with surface tension quantities. 1. Introduction The Stefan problem is a model for phase transitions in solid-liquid systems

Simonett, Gieri

419

Deterministic Global Optimization in Nonlinear Optimal Control Problems  

Science Conference Proceedings (OSTI)

The accurate solution of optimal control problems is crucial in many areas of engineering and applied science. For systems which are described by a nonlinear set of differential-algebraic equations, these problems have been shown to often contain ... Keywords: Differential-algebraic equations, Global optimization, Optimal control

William R. Esposito; Christodoulos A. Floudas

2000-09-01T23:59:59.000Z

420

A convergent adaptive method for elliptic eigenvalue problems  

E-Print Network (OSTI)

problems, nuclear reactor criticality and the modelling of photonic band gap materials, to name but three the computed eigenfunction has high oscillation. The error analysis extends the theory of convergence eigenfunction. (Measures of "data oscillation" appear in the theory of adpativity for boundary value problems (e

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


421

INITIAL BOUNDARY VALUE PROBLEMS FOR A QUASILINEAR PARABOLIC SYSTEM  

E-Print Network (OSTI)

INITIAL BOUNDARY VALUE PROBLEMS FOR A QUASILINEAR PARABOLIC SYSTEM IN THREE-PHASE CAPILLARY FLOW problems for a quasi- linear parabolic system motivated by three-phase ow in porous medium in the presence quasilinear parabolic sys- tems of the form (1.1) u t + f(u) x = (B(u)u x ) x ; 0

422

A New Memetic Algorithm for the Asymmetric Traveling Salesman Problem  

Science Conference Proceedings (OSTI)

This paper introduces a new memetic algorithm specialized for the asymmetric instances of the traveling salesman problem (ATSP). The method incorporates a new local search engine and many other features that contribute to its effectiveness, such as: ... Keywords: asymmetric traveling salesman problem, local search, memetic algorithms, metaheuristics

Luciana Buriol; Paulo M. Fran鏰; Pablo Moscato

2004-09-01T23:59:59.000Z

423

Comparison of heuristics for the colourful travelling salesman problem  

Science Conference Proceedings (OSTI)

In the colourful travelling salesman problem CTSP, given a graph G with a not necessarily distinct label colour assigned to each edge, a Hamiltonian tour with the minimum number of different labels is sought. The problem is a variant of the well-known ...

J. Silberholz; A. Raiconi; R. Cerulli; M. Gentili; B. Golden; S. Chen

2013-05-01T23:59:59.000Z

424

On a class of inverse electrostatic and elasticity problems  

E-Print Network (OSTI)

We study the inverse electrostatic and elasticity problems associated with Poisson and Navier equations. The uniqueness of solutions of these problems is proved for piecewise constant electric charge and internal stress distributions having a checkered structure: they are constant on rectangular blocks. Such distributions appear naturally in practical applications. We also discuss computational challenges arising in the numerical implementation of our method.

Andrei Artemev; Leonid Parnovski; Iosif Polterovich

2012-09-29T23:59:59.000Z

425

Digital Dice: Computational Solutions to Practical Probability Problems  

Science Conference Proceedings (OSTI)

Some probability problems are so difficult that they stump the smartest mathematicians. But even the hardest of these problems can often be solved with a computer and a Monte Carlo simulation, in which a random-number generator simulates a physical process, ...

Paul J. Nahin

2008-03-01T23:59:59.000Z

426

What went wrong? A survey of problems in game development  

Science Conference Proceedings (OSTI)

Despite its growth and profitability, many reports about game projects show that their production is not a simple task, but one beset by common problems and still distant from having a healthy and synergetic work process. The goal of this article is ... Keywords: Electronic games, game development, postmortems, problems in game development, survey

F醔io Petrillo; Marcelo Pimenta; Francisco Trindade; Carlos Dietrich

2009-02-01T23:59:59.000Z

427

The integrated production---inventory---distribution---routing problem  

Science Conference Proceedings (OSTI)

The integration of production and distribution decisions presents a challenging problem for manufacturers trying to optimize their supply chain. At the planning level, the immediate goal is to coordinate production, inventory, and delivery to meet customer ... Keywords: Allocation model, Inventory, Lot-sizing, Production planning, Tabu search, Vehicle routing problem

Jonathan F. Bard; Narameth Nananukul

2009-06-01T23:59:59.000Z

428

Spatio-Temporal Patterns for Problem Determination in IT Services  

Science Conference Proceedings (OSTI)

Problem determination in a large and dynamic IT service is a challenging task. In this paper we propose a framework for problem determination based on monitoring the event streams generated by the different components of an IT service. We give a generic ...

Shubhadip Mitra; Partha Dutta; Shivkumar Kalyanaraman; Prashant Pradhan

2009-09-01T23:59:59.000Z

429

Asymmetric traveling salesman path and directed latency problems  

Science Conference Proceedings (OSTI)

We study integrality gaps and approximability of two closely related problems on directed graphs. Given a set V of n nodes in an underlying asymmetric metric and two specified nodes s and t, both problems ask to find an s-t ...

Zachary Friggstad; Mohammad R. Salavatipour; Zoya Svitkina

2010-01-01T23:59:59.000Z

430

On the modulus algorithm for the linear complementarity problem  

Science Conference Proceedings (OSTI)

Concerning three subclasses of P-matrices the modulus algorithm and the projected successive overrelaxation (PSOR) method solving the linear complementarity problem are compared to each other with respect to convergence. It is shown that the modulus ... Keywords: H-matrix, Linear complementarity problem, P-matrix, PSOR method

Uwe Sch銯er

2004-07-01T23:59:59.000Z

431

Iterative methods for solving the pressure problem at multiphase filtration  

E-Print Network (OSTI)

Applied problems of oil and gas recovery are studied numerically using the mathematical models of multiphase fluid flows in porous media. The basic model includes the continuity equations and the Darcy laws for each phase, as well as the algebraic expression for the sum of saturations. Primary computational algorithms are implemented for such problems using the pressure equation. In this paper, we highlight the basic properties of the pressure problem and discuss the necessity of their fulfillment at the discrete level. The resulting elliptic problem for the pressure equation is characterized by a non-selfadjoint operator. Possibilities of approximate solving the elliptic problem are considered using the iterative methods. Special attention is given to the numerical algorithms for calculating the pressure on parallel computers.

Vabishchevich, P

2011-01-01T23:59:59.000Z

432

MUSE CSP: An Extension to the Constraint Satisfaction Problem  

E-Print Network (OSTI)

This paper describes an extension to the constraint satisfaction problem (CSP) called MUSE CSP (MUltiply SEgmented Constraint Satisfaction Problem). This extension is especially useful for those problems which segment into multiple sets of partially shared variables. Such problems arise naturally in signal processing applications including computer vision, speech processing, and handwriting recognition. For these applications, it is often difficult to segment the data in only one way given the low-level information utilized by the segmentation algorithms. MUSE CSP can be used to compactly represent several similar instances of the constraint satisfaction problem. If multiple instances of a CSP have some common variables which have the same domains and constraints, then they can be combined into a single instance of a MUSE CSP, reducing the work required to apply the constraints. We introduce the concepts of MUSE node consistency, MUSE arc consistency, and MUSE path consistency. We th...

Randall A. Helzerman; Mary P. Harpe

1996-01-01T23:59:59.000Z

433

Numerical Solution of the Expanding Stellar Atmosphere Problem  

E-Print Network (OSTI)

In this paper we discuss numerical methods and algorithms for the solution of NLTE stellar atmosphere problems involving expanding atmospheres, e.g., found in novae, supernovae and stellar winds. We show how a scheme of nested iterations can be used to reduce the high dimension of the problem to a number of problems with smaller dimensions. As examples of these sub-problems, we discuss the numerical solution of the radiative transfer equation for relativistically expanding media with spherical symmetry, the solution of the multi-level non-LTE statistical equilibrium problem for extremely large model atoms, and our temperature correction procedure. Although modern iteration schemes are very efficient, parallel algorithms are essential in making large scale calculations feasible, therefore we discuss some parallelization schemes that we have developed.

Hauschildt, P H

1998-01-01T23:59:59.000Z

434

Numerical Solution of the Expanding Stellar Atmosphere Problem  

E-Print Network (OSTI)

In this paper we discuss numerical methods and algorithms for the solution of NLTE stellar atmosphere problems involving expanding atmospheres, e.g., found in novae, supernovae and stellar winds. We show how a scheme of nested iterations can be used to reduce the high dimension of the problem to a number of problems with smaller dimensions. As examples of these sub-problems, we discuss the numerical solution of the radiative transfer equation for relativistically expanding media with spherical symmetry, the solution of the multi-level non-LTE statistical equilibrium problem for extremely large model atoms, and our temperature correction procedure. Although modern iteration schemes are very efficient, parallel algorithms are essential in making large scale calculations feasible, therefore we discuss some parallelization schemes that we have developed.

P. H. Hauschildt; E. Baron

1998-08-18T23:59:59.000Z

435

The problem of describing a problem: Supporting laypersons in presenting their queries to the Internet-based helpdesk  

Science Conference Proceedings (OSTI)

Internet-based helpdesks for hardware and software are a common way to get expert advice. To communicate effectively with experts, laypersons should be able to provide the expert with a concise and comprehensive description of their computer problem. ... Keywords: Asynchronous interaction, Computer-supported cooperative work, Electronic mail, Expert-layperson communication, Helpdesk support, Human information processing, Problem solving

Matthias N點kles; Anna Ertelt

2006-08-01T23:59:59.000Z

436

A framework for organizing the space of decision problems with application to solving subjective, context-dependent problems  

Science Conference Proceedings (OSTI)

Developing Decision Support Systems (DSS) is a difficult task, prone to errors and susceptible to colossal failures. In order to alleviate this difficulty and its consequences, we propose a framework for organizing the space of decision problems based ... Keywords: Case-based reasoning, Clustering, Decision problems characteristics, Influence knowledge graph, Software development

Yoram Reich; Adi Kapeliuk

2005-11-01T23:59:59.000Z

437

Master problem approximations in Dantzig-Wolfe decomposition of variational inequality problems with applications to two energy market models  

Science Conference Proceedings (OSTI)

In this paper, a modification to Dantzig-Wolfe (DW) decomposition algorithm for variational inequality (VI) problems is considered to alleviate the computational burden and to facilitate model management and maintenance. As proposals from DW subproblems ... Keywords: Approximation of the master problem, Dantzig-Wolfe decomposition, Equilibrium modeling, Variational inequalities

Emre 荅lebi, J. David Fuller

2013-11-01T23:59:59.000Z

438

Building problem solving environments with the arches framework  

Science Conference Proceedings (OSTI)

The computational problems that scientists face are rapidly escalating in size and scope. Moreover, the computer systems used to solve these problems are becoming significantly more complex than the familiar, well-understood sequential model on their desktops. While it is possible to re-train scientists to use emerging high-performance computing (HPC) models, it is much more effective to provide them with a higher-level programming environment that has been specialized to their particular domain. By fostering interaction between HPC specialists and the domain scientists, problem-solving environments (PSEs) provide a collaborative environment. A PSE environment allows scientists to focus on expressing their computational problem while the PSE and associated tools support mapping that domain-specific problem to a high-performance computing system. This article describes Arches, an object-oriented framework for building domain-specific PSEs. The framework was designed to support a wide range of problem domains and to be extensible to support very different high-performance computing targets. To demonstrate this flexibility, two PSEs have been developed from the Arches framework to solve problem in two different domains and target very different computing platforms. The Coven PSE supports parallel applications that require large-scale parallelism found in cost-effective Beowulf clusters. In contrast, RCADE targets FPGA-based reconfigurable computing and was originally designed to aid NASA Earth scientists studying satellite instrument data.

Debardeleben, Nathan [Los Alamos National Laboratory; Sass, Ron [U NORTH CAROLINA; Stanzione, Jr., Daniel [ASU; Ligon, Ill, Walter [CLEMSON UNIV

2009-01-01T23:59:59.000Z

439

Continuous-Time Quantum Algorithms for Unstructured Problems  

E-Print Network (OSTI)

We consider a family of unstructured problems, for which we propose a method for constructing analog, continuous-time quantum algorithms that are more efficient than their classical counterparts. In this family of problems, which we refer to as `scrambled output' problems, one has to find a minimum-cost configuration of a given integer-valued n-bit function whose output values have been scrambled in some arbitrary way. Special cases within this set of problems are Grover's search problem of finding a marked item in an unstructured database, certain random energy models, and the functions of the Deutsch-Josza problem. We consider a couple of examples in detail. In the first, we provide a deterministic analog quantum algorithm to solve the seminal problem of Deutsch and Josza, in which one has to determine whether an n-bit boolean function is constant (gives 0 on all inputs or 1 on all inputs) or balanced (returns 0 on half the input states and 1 on the other half). We also study one variant of the random energy model, and show that, as one might expect, its minimum energy configuration can be found quadratically faster with a quantum adiabatic algorithm than with classical algorithms.

Itay Hen

2013-02-28T23:59:59.000Z

440

Component mixers and a hardness result for counterfeiting quantum money  

E-Print Network (OSTI)

In this paper we give the first proof that, under reasonable assumptions, a problem related to counterfeiting quantum money from knots [Farhi et al. 2010] is hard. Along the way, we introduce the concept of a component mixer, define three new classical query problems and associated complexity classes related to graph isomorphism and group membership, and conjecture an oracle separating QCMA from QMA.

Andrew Lutomirski

2011-07-01T23:59:59.000Z

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


441

Component mixers and a hardness result for counterfeiting quantum money  

E-Print Network (OSTI)

In this paper we give the first proof that, under reasonable assumptions, a problem related to counterfeiting quantum money from knots [Farhi et al. 2010] is hard. Along the way, we introduce the concept of a component mixer, define three new classical query problems and associated complexity classes related to graph isomorphism and group membership, and conjecture an oracle separating QCMA from QMA.

Lutomirski, Andrew

2011-01-01T23:59:59.000Z

442

Solving $k$-Nearest Vector Problem on Multiple Graphics Processors  

E-Print Network (OSTI)

In a recommendation system, customers' preferences are encoded into vectors, and finding the nearest vectors to each vector is an essential part. We define this part of problem as a $k$-nearest vector problem and give an effective algorithm to solve it on multiple graphics processor units (GPUs). By an experiment, we show that when the size of the problem is large, an implementation of the algorithm on two GPUs runs more than 260 times faster than a single core implementation on a latest CPU. We also show that our algorithm scales well with respect to the number of GPUs.

Kato, Kimikazu

2009-01-01T23:59:59.000Z

443

Inverse problems for symmetric matrices with a submatrix constraint  

Science Conference Proceedings (OSTI)

This paper is concerned with the following problems: Problem I(a). Given a full column rank matrix X@?R^n^x^p and symmetric matrices B@?R^p^x^p and A"0@?R^r^x^r, find an nxn symmetric matrix A such thatX^TAX=B,A([1,r])=A"0, where A([1,r]) is the rxr ... Keywords: Canonical correlation decomposition, Generalized singular value decomposition, Inverse problem, Least-squares solution, Optimal approximation, Symmetric matrix

Yongxin Yuan; Hua Dai

2007-05-01T23:59:59.000Z

444

Solving Large-scale Eigenvalue Problems in SciDACApplications  

SciTech Connect

Large-scale eigenvalue problems arise in a number of DOE applications. This paper provides an overview of the recent development of eigenvalue computation in the context of two SciDAC applications. We emphasize the importance of Krylov subspace methods, and point out its limitations. We discuss the value of alternative approaches that are more amenable to the use of preconditioners, and report the progression using the multi-level algebraic sub-structuring techniques to speed up eigenvalue calculation. In addition to methods for linear eigenvalue problems, we also examine new approaches to solving two types of non-linear eigenvalue problems arising from SciDAC applications.

Yang, Chao

2005-06-29T23:59:59.000Z

445

Bayesian nonlinear regression for large p small n problems  

Science Conference Proceedings (OSTI)

Statistical modeling and inference problems with sample sizes substantially smaller than the number of available covariates are challenging. This is known as large p small n problem. Furthermore, the problem is more complicated when we have multiple ... Keywords: 62F15, 62G08, 62H99, 62J02, 62M20, Bayesian hierarchical model, Empirical Bayes, Gibbs sampling, Markov chain Monte Carlo, Metropolis-Hastings algorithm, Near infrared spectroscopy, Relevance vector machine, Reproducing kernel Hilbert space, Support vector machine, Vapnik's ?-insensitive loss

Sounak Chakraborty; Malay Ghosh; Bani K. Mallick

2012-07-01T23:59:59.000Z

446

Nonlinear eigenvalue problems in Density Functional Theory calculations  

SciTech Connect

Developed in the 1960's by W. Kohn and coauthors, Density Functional Theory (DFT) is a very popular quantum model for First-Principles simulations in chemistry and material sciences. It allows calculations of systems made of hundreds of atoms. Indeed DFT reduces the 3N-dimensional Schroedinger electronic structure problem to the search for a ground state electronic density in 3D. In practice it leads to the search for N electronic wave functions solutions of an energy minimization problem in 3D, or equivalently the solution of an eigenvalue problem with a non-linear operator.

Fattebert, J

2009-08-28T23:59:59.000Z

447

Windows Vista vs Ubuntu Installaci: procs, temps i problemes  

E-Print Network (OSTI)

Windows Vista vs Ubuntu #12;脥ndex Instal路laci贸: proc茅s, temps i problemes Aplicacions Temps d路laci贸: proc茅s, temps i problemes Proc茅s d'instal路laci贸 de Windows Vista Proc茅s d'instal路laci贸 de Linux Ubuntu 7.04 Temps total Problemes #12;Instal路laci贸 Windows Vista (I) #12;Instal路laci贸 Windows Vista (II

Polit猫cnica de Catalunya, Universitat

448

Robust optimization for network-based resource allocation problems under uncertainty  

E-Print Network (OSTI)

We consider large-scale, network-based, resource allocation problems under uncertainty, with specific focus on the class of problems referred to as multi-commodity flow problems with time-windows. These problems are at the ...

Marla, Lavanya

2007-01-01T23:59:59.000Z

449

Quantifying the Effect of the Principal-Agent Problem on US Residential Energy Use  

E-Print Network (OSTI)

principal agent (PA) problem, affects energy use in the U.S.the Principal-Agent Problem Site Energy by End Use, TBtu (the Principal-Agent Problem in Energy End-Use The PA problem

Murtishaw, Scott; Sathaye, Jayant

2006-01-01T23:59:59.000Z

450

The 3x + 1 Problem and its Generalizations - CECM  

E-Print Network (OSTI)

(18,58,50,26)(19,51)(27,59)(33,53). (36,52)(29,55)(41,61,57,45). 4 ...... It is a measure of the di culty of problems in this area that even the following apparently .

451

A theoretical study on a convergence problem of nodal methods  

SciTech Connect

The effectiveness of modern nodal methods is largely due to its use of the information from the analytical flux solution inside a homogeneous node. As a result, the nodal coupling coefficients depend explicitly or implicitly on the evolving Eigen-value of a problem during its solution iteration process. This poses an inherently non-linear matrix Eigen-value iteration problem. This paper points out analytically that, whenever the half wave length of an evolving node interior analytic solution becomes smaller than the size of that node, this non-linear iteration problem can become inherently unstable and theoretically can always be non-convergent or converge to higher order harmonics. This phenomenon is confirmed, demonstrated and analyzed via the simplest 1-D problem solved by the simplest analytic nodal method, the Analytic Coarse Mesh Finite Difference (ACMFD, [1]) method. (authors)

Shaohong, Z.; Ziyong, L. [Shanghai Jiao Tong Univ., 1954 Hua Shan Road, Shanghai, 200030 (China); Chao, Y. A. [Westinghouse Electric Company, P. O. Box 355, Pittsburgh, PA 15230-0355 (United States)

2006-07-01T23:59:59.000Z

452

Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions |  

Open Energy Info (EERE)

Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions Jump to: navigation, search Tool Summary Name: Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions Agency/Company /Organization: World Bank Sector: Energy Topics: Baseline projection, GHG inventory, Pathways analysis Resource Type: Publications, Lessons learned/best practices Website: www.p2pays.org/ref/22/21739.pdf References: Baselines for Greenhouse Gas Reductions: Problems, Precedents, Solutions[1] Summary "Rigor in baselines It's important to establish the right degree of rigor in baselining. Overly lax baselines will threaten the system's credibility and usefulness, and shift rents from high quality providers to low quality providers of offsets. Overly stringent baselines will discourage valid projects and

453

Optimal control and parameter selection problems in forest stand management  

Science Conference Proceedings (OSTI)

A typical stand forestry problem for determining an optimal silvicultural regime is demonstrated in this paper, where an optimal number of trees at planting and a harvesting strategy over the crop rotation are resolved. The traditional approach for determining ...

O. Chikumbo; I. M. Y. Mareels

2002-01-01T23:59:59.000Z

454

The Prouhet-Tarry-Escott problem revisited - CECM - Simon Fraser ...  

E-Print Network (OSTI)

Dec 13, 1993 ... f gih$jlkj ntnm rno p rohqrj rti$jls. The problem can be stated in three equivalent ways. This is an old result as are most of the results of this...

455

24.00 Problems of Philosophy, Fall 2005  

E-Print Network (OSTI)

The course has two main goals: First, to give you a sense of what philosophers think about and why. This will be done through consideration of some perennial philosophical problems, e.g., the existence of God, reason and ...

Haslanger, Sally

456

24.00 Problems of Philosophy, Fall 2001  

E-Print Network (OSTI)

The course has two main goals: First, to give you a sense of what philosophers think about and why. This will be done through consideration of some perennial philosophical problems, e.g., the existence of God, reason and ...

Haslanger, Sally Anne

457

Accessibility of Analysis of Algorithms: from programming to problem solving  

Science Conference Proceedings (OSTI)

In Introduction to Analysis of Algorithms, students' first experience applying a combination of computer science theory and mathematics to paper-based problem solving, analysis of pre-developed algorithms, and proofs of algorithmic run-times. ...

Karina V Assiter

2005-12-01T23:59:59.000Z

458

Solving a log-truck scheduling problem with constraint programming  

Science Conference Proceedings (OSTI)

Scheduling problems in the forest industry have received significant attention in the recent years and have contributed many challenging applications for optimization technologies. This paper proposes a solution method based on constraint programming ...

Nizar El Hachemi; Michel Gendreau; Louis-Martin Rousseau

2008-05-01T23:59:59.000Z

459

Solution to the Charney Problem of Viscous Symmetric Circulation  

Science Conference Proceedings (OSTI)

The classical problem of viscosity-driven, axially symmetric meridional circulation, partly solved only for the midlatitudes by Charney, is solved here analytically in the whole globe and for any value of viscosity coefficient ?. The solution ...

Ming Fang; Ka Kit Tung

1994-05-01T23:59:59.000Z

460

Solving Two-stage Robust Optimization Problems by A Constraint ...  

E-Print Network (OSTI)

portfolio optimization [15] and power system control and scheduling [18, 12, 9]. However, 2-stage RO ..... The price of robustness. Operations Research ... Robust unit commitment problem with demand response and wind energy. Technical...

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


461

Using computers to solve problems of biological relevance: Biofuels...  

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

Using computers to solve problems of biological relevance: Biofuels and Alzheimer's disease. Oct 23 2013 10:00 AM - 11:00 AM Dr. Pavan K. GhattyVenkataKrishna, Computational...

462

On the signal bounding problem in timing analysis  

Science Conference Proceedings (OSTI)

In this paper, we study the propagation of slew dependent bounding signals and the corresponding slew problem in static timing analysis. The selection of slew from the latest arriving signal, a commonly used strategy, may violate the rule of monotonic ...

Jin Fuw Lee; D. L. Ostapko; Jeffery Soreff; C. K. Wong

2001-11-01T23:59:59.000Z

463

Optimality Conditions for Bilevel Programming Problem in Asplund Spaces  

E-Print Network (OSTI)

Here, necessary optimal condition for Optimistic Bilevel programming problem is obtained in Asplund spaces. Also we have got necessary optimal conditions in finite dimensional spaces, by assuming differentiability on the given functions.

Pattanaik, Suvendu

2011-01-01T23:59:59.000Z

464

The Internet and the Millennium Problem (Year 2000)  

Science Conference Proceedings (OSTI)

The Year 2000 Working Group (WG) has conducted an investigation into the millennium problem as it regards Internet related protocols. This investigation only targeted the protocols as documented in the Request For Comments Series (RFCs). This investigation ...

P. Nesser, II

1999-06-01T23:59:59.000Z

465

The Charney Baroclinic Stability Problem: Approximate Solutions and Modal Structures  

Science Conference Proceedings (OSTI)

The classic Charney baroclinic stability problem is examined through perturbation techniques in the short-wave limit, near the first neutral curve separating Charney and Green modes, and near the second neutral curve separating long and short ...

Lee E. Branscome

1983-06-01T23:59:59.000Z

466

A Particle Filter for Inverse Lagrangian Prediction Problems  

Science Conference Proceedings (OSTI)

The authors present a numerical method for the inverse Lagrangian prediction problem, which addresses retrospective estimation of drifter trajectories through a turbulent flow, given their final positions and some knowledge of the flow field. Of ...

T. Mike Chin; Arthur J. Mariano

2010-02-01T23:59:59.000Z

467

Green's kernels for transmission problems in bodies with small inclusions  

E-Print Network (OSTI)

The uniform asymptotic approximation of Green's kernel for the transmission problem of antiplane shear is obtained for domains with small inclusions. The remainder estimates are provided. Numerical simulations are presented to illustrate the effectiveness of the approach.

Vladimir Maz'ya; Alexander Movchan; Michael Nieves

2010-05-24T23:59:59.000Z

468

Decomposition methods for large scale stochastic and robust optimization problems  

E-Print Network (OSTI)

We propose new decomposition methods for use on broad families of stochastic and robust optimization problems in order to yield tractable approaches for large-scale real world application. We introduce a new type of a ...

Becker, Adrian Bernard Druke

2011-01-01T23:59:59.000Z

469

Control and estimation problems under partially nested information pattern  

E-Print Network (OSTI)

In this paper we study distributed estimation and control problems over graphs under partially nested information patterns. We show a duality result that is very similar to the classical duality result between state ...

Gattami, Ather Said

470

Efficient Solutions for the Far From Most String Problem  

E-Print Network (OSTI)

Apr 7, 2011 ... Efficient Solutions for the Far From Most String Problem. Paola Festa(paola.festa ***at*** unina.it) Panos M. Pardalos(pardalos ***at*** ufl.edu).

471

The "Skyscraper problem" and the city beautiful : the Woolworth Building  

E-Print Network (OSTI)

The "skyscraper problem" challenged the thought and practice of civic designers and architects prior to World War I. It referred to the incompatibility of City Beautiful principles with economically propelled land development, ...

Fenske, Gail

1988-01-01T23:59:59.000Z

472

An Ensemble Multiscale Filter for Large Nonlinear Data Assimilation Problems  

Science Conference Proceedings (OSTI)

Operational data assimilation problems tend to be very large, both in terms of the number of unknowns to be estimated and the number of measurements to be processed. This poses significant computational challenges, especially for ensemble methods,...

Yuhua Zhou; Dennis McLaughlin; Dara Entekhabi; Gene-Hua Crystal Ng

2008-02-01T23:59:59.000Z

473

B-spline finite elements for plane elasticity problems.  

E-Print Network (OSTI)

??The finite element method since its development in the 1950芒??s has been used extensively in solving complex problems involving partial differential equations. The conventional finite (more)

Aggarwal, Bhavya

2007-01-01T23:59:59.000Z

474

On efficient multigrid software for elliptic problems on rectangular domains  

Science Conference Proceedings (OSTI)

Emphasis has been laid on software development concerning 'non-standard' multigrid techniques as introduced by Foerster, Stuben and Trottenberg^1. The advantages of these methods result in very efficient code for the solution of elliptic problems. In ...

Hartmut Foester; Kristian Witsch

1981-09-01T23:59:59.000Z

475

An Extension of the Lyapunov Analysis for the Predictability Problem  

Science Conference Proceedings (OSTI)

The predictability problem for systems with different characteristic timescales is investigated. It is shown that even in simple chaotic dynamical systems, the leading Lyapunov exponent is not sufficient to estimate the predictability time. This ...

G. Boffetta; P. Giuliani; G. Paladin; A. Vulpiani

1998-12-01T23:59:59.000Z

476

Column generation based heuristic for a helicopter routing problem  

Science Conference Proceedings (OSTI)

This work presents a column generation based heuristic algorithm for the problem of planning the flights of helicopters to attend transport requests among airports in the continent and offshore platforms on the Campos basin for the Brazilian State Oil ...

Lorenza Moreno; Marcus Poggi de Arag鉶; Eduardo Uchoa

2006-05-01T23:59:59.000Z

477

Forecasting Electricity Prices in an Optimization Hydrothermal Problem  

Science Conference Proceedings (OSTI)

This paper presents an economic dispatch algorithm in a hydrothermal system within the framework of a competitive and deregulated electricity market. The optimization problem of one firm is described

J. M. Mat韆s; L. Bay髇; P. Su醨ez; A. Arg黣lles; J. Taboada

2007-01-01T23:59:59.000Z

478

Stochastic and Robust Approaches to Optimization Problems under Uncertainty  

Science Conference Proceedings (OSTI)

In the last decade, optimization models under uncertainty have drawn much attention and efficient algorithms have been developed for solving those problems. This article presents the author's recent attempts conducted in collaboration with a number of ...

Masao Fukushima

2007-01-01T23:59:59.000Z

479

A GIS embedded decision support system for bicriteria location problems  

Science Conference Proceedings (OSTI)

In this paper we describe and exemplify the embedment of a Geographical Information System (GIS) platform in a decision support tool previously developed for bicriteria location problems. When the facilities to be located have environmental effects, ...

S閞gio Fernandes; M. Eug閚ia Captivo; Jo鉶 N. Cl韒aco

2010-08-01T23:59:59.000Z

480

Simulation and Analysis of Converging Shock Wave Test Problems  

Science Conference Proceedings (OSTI)

Results and analysis pertaining to the simulation of the Guderley converging shock wave test problem (and associated code verification hydrodynamics test problems involving converging shock waves) in the LANL ASC radiation-hydrodynamics code xRAGE are presented. One-dimensional (1D) spherical and two-dimensional (2D) axi-symmetric geometric setups are utilized and evaluated in this study, as is an instantiation of the xRAGE adaptive mesh refinement capability. For the 2D simulations, a 'Surrogate Guderley' test problem is developed and used to obviate subtleties inherent to the true Guderley solution's initialization on a square grid, while still maintaining a high degree of fidelity to the original problem, and minimally straining the general credibility of associated analysis and conclusions.

Ramsey, Scott D. [Los Alamos National Laboratory; Shashkov, Mikhail J. [Los Alamos National Laboratory

2012-06-21T23:59:59.000Z

Note: This page contains sample records for the topic "addthis problem oracle" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Parameter identification for chemical models in combustion problems  

Science Conference Proceedings (OSTI)

We present an algorithm for parameter identification in combustion problems modeled by partial differential equations. The method includes local mesh refinement controlled by a posteriori error estimation with respect to the error in the parameters. ...

R. Becker; M. Braack; B. Vexler

2005-08-01T23:59:59.000Z

482

Fuzzy Expert System for Solving Lost Circulation Problem  

Science Conference Proceedings (OSTI)

Lost circulation is the most common problem encountered when drilling. This paper describes a distributed hybrid intelligent system, called SmartDrill, using fuzzy logic, expert system framework and web services for helping petroleum engineers to diagnose ...

Leonid Sheremetov; Ildar Batyrshin; Jorge Martinez; Hector Rodriguez; Denis Filatov

2005-12-01T23:59:59.000Z

483

Multi-grid and ICCG for problems with interfaces  

SciTech Connect

Computation times for the multi-grid (MG) algorithm, the incomplete Cholesky conjugate gradient (ICCG) algorithm (J. Comp. Phys. 26, 43-65 (1978); Math. Comp. 31, 148-162 (1977)), and the modified ICCG (MICCG) algorithm (BIT 18, 142-156 (1978)) to solve elliptic partial differential equations are compared. The MICCG and ICCG algorithms are more robust than the MG for general positive definite systems. A major advantage of the MG algorithm is that the structure of the problem can be exploited to reduce the solution time significantly. Five example problems are discussed. For problems with little structure and for one-shot calculations ICCG is recommended over MG, and MICCG, over ICCG. For problems that are done many times, it is worth investing the effort to study methods like MG. 1 table (RWR)

Dendy, J.E.; Hyman, J.M.

1980-01-01T23:59:59.000Z

484

Bayesian inverse problems with Monte Carlo forward models  

E-Print Network (OSTI)

The full application of Bayesian inference to inverse problems requires exploration of a posterior distribution that typically does not possess a standard form. In this context, Markov chain Monte Carlo (MCMC) methods are ...

Bal, Guillaume

485

On Boundary Value Problems of the Ideal-Fluid Thermocline  

Science Conference Proceedings (OSTI)

Recent developments of ideal-fluid thermocline models are briefly reviewed. Using density coordinates, boundary value problems are formulated for the ideal-fluid thermocline with continuous stratification. Ekman pumping and surface density are ...

Rui Xin Huang

1988-04-01T23:59:59.000Z

486

Computer system performance problem detection using time series models  

Science Conference Proceedings (OSTI)

Computer systems require monitoring to detect performance anomalies such as runaway processes, but problem detection and diagnosis is a complex task requiring skilled attention. Although human attention was never ideal for this task, as networks of computers ...

Peter Hoogenboom; Jay Lepreau

1993-06-01T23:59:59.000Z

487

Complexity of Homogeneous Co-Boolean Constraint Satisfaction Problems  

E-Print Network (OSTI)

Constraint Satisfaction Problems (CSP) constitute a convenient way to capture many combinatorial problems. The general CSP is known to be NP-complete, but its complexity depends on a template, usually a set of relations, upon which they are constructed. Following this template, there exist tractable and intractable instances of CSPs. It has been proved that for each CSP problem over a given set of relations there exists a corresponding CSP problem over graphs of unary functions belonging to the same complexity class. In this short note we show a dichotomy theorem for every finite domain D of CSP built upon graphs of homogeneous co-Boolean functions, i.e., unary functions sharing the Boolean range {0, 1}.

Richoux, Florian

2010-01-01T23:59:59.000Z

488

Solving Quantum Ground-State Problems with Nuclear Magnetic Resonance  

E-Print Network (OSTI)

Quantum ground-state problems are computationally hard problems; for general many-body Hamiltonians, there is no classical or quantum algorithm known to be able to solve them efficiently. Nevertheless, if a trial wavefunction approximating the ground state is available, as often happens for many problems in physics and chemistry, a quantum computer could employ this trial wavefunction to project the ground state by means of the phase estimation algorithm (PEA). We performed an experimental realization of this idea by implementing a variational-wavefunction approach to solve the ground-state problem of the Heisenberg spin model with an NMR quantum simulator. Our iterative phase estimation procedure yields a high accuracy for the eigenenergies (to the 10^-5 decimal digit). The ground-state fidelity was distilled to be more than 80%, and the singlet-to-triplet switching near the critical field is reliably captured. This result shows that quantum simulators can better leverage classical trial wavefunctions than c...

Li, Zhaokai; Chen, Hongwei; Lu, Dawei; Whitfield, James D; Peng, Xinhua; Aspuru-Guzik, Al醤; Du, Jiangfeng

2011-01-01T23:59:59.000Z

489

accuracy certificates for computational problems with convex structure  

E-Print Network (OSTI)

A close inspection shows that for some important families of CMP's, like the family Fc(B) of all problems (1) with ...... lady, 20:191194, 1979. [11] C. Lemarechal...

490

The class imbalance problem in TLC image classification  

Science Conference Proceedings (OSTI)

The paper presents the methodology developed to solve the class imbalanced problem that occurs in the classification of Thin-Layer Chromatography (TLC) images. The proposed methodology is based on re-sampling, and consists in the undersampling of the ...

Ant髇io V. Sousa; Ana Maria Mendon鏰; Aur閘io Campilho

2006-09-01T23:59:59.000Z

491

Stable Multiscale Bases and Local Error Estimation for Elliptic Problems  

E-Print Network (OSTI)

methods to accelerate the search, can form practical algorithms for rigorously finding all roots at such points in the second problem. nle-1 This one-dimensional problem is given by f(x) = |x2 + 5x| + x + 1 = 0. Its roots are at x = -2 - 5 [-4.237, -4.236] and x = -3 - 8 [-5.829, -5.828]. nle-2 This two

Dahlke, Stephan

492

Problem of improving coke oven gas purification systems  

Science Conference Proceedings (OSTI)

A discussion of the problems of improving desulfurization processes of coke oven gas was presented. Of particular interest were control systems and increasing capacity of the coke ovens. Included in the discussion were the vacuum-carbonate and arsenic-soda sulfur removal systems. Problems involved with these systems were the number of treatment operations, the volume of the reagents used, and the operation of equipment for naphthalene and cyanide removal.

Goldin, I.A.

1982-01-01T23:59:59.000Z

493

The Inverse Problem of Remote Neutrino Diagnostics of Intrareactor Processes  

E-Print Network (OSTI)

Using the well-known experimental data the inverse problem of neutrino diagnostics of reactor core is considered. The solution of this problem makes it possible to determine distantly the current value of nuclear density of each nuclear fuel components with known accuracy and also opens up the possibility for the development of neutrino online technology of temporal evolution of nuclear fuel isotopic structure and reactor power.

V. D. Rusov; T. N. Zelentsova; V. A. Tarasov; D. A. Litvinov

2004-03-19T23:59:59.000Z

494

Using vector divisions in solving the linear complementarity problem  

Science Conference Proceedings (OSTI)

The linear complementarity problem LCP(M,q) is to find a vector z in IR^n satisfying z^T(Mz+q)=0, Mz+q>=0,z>=0, where M=(m"i"j)@?IR^n^x^n and q@?IR^n are given. In this paper, we use the fact that solving LCP(M,q) is equivalent to solving the nonlinear ... Keywords: Global convergence, Linear complementarity problem, Newton's method, Secant method, Vector division

Youssef Elfoutayeni; Mohamed Khaladi

2012-01-01T23:59:59.000Z

495

Variational stability of optimal control problems involving subdifferential operators  

Science Conference Proceedings (OSTI)

This paper is concerned with the problem of minimizing an integral functional with control-nonconvex integrand over the class of solutions of a control system in a Hilbert space subject to a control constraint given by a phase-dependent multivalued map with closed nonconvex values. The integrand, the subdifferential operators, the perturbation term, the initial conditions and the control constraint all depend on a parameter. Along with this problem, the paper considers the problem of minimizing an integral functional with control-convexified integrand over the class of solutions of the original system, but now subject to a convexified control constraint. By a solution of a control system we mean a 'trajectory-control' pair. For each value of the parameter, the convexified problem is shown to have a solution, which is the limit of a minimizing sequence of the original problem, and the minimal value of the functional with the convexified integrand is a continuous function of the parameter. This property is commonly referred to as the variational stability of a minimization problem. An example of a control parabolic system with hysteresis and diffusion effects is considered. Bibliography: 24 titles.

Tolstonogov, Aleksandr A [Institute of System Dynamics and Control Theory, Siberian Branch of the Russian Academy of Sciences, Irkutsk (Russian Federation)

2011-04-30T23:59:59.000Z

496

Correcting Thermal Distribution Problems for a Large University Campus  

E-Print Network (OSTI)

Texas A&M University main campus in College Station consists of 114 buildings served by two central plants. The two main campus loops are more than 50 years old with a total piping length for each loop in excess of 13 miles. The main campus has long had a problem with thermal distribution to the 114 buildings served by the central plants. Pressure problems were encountered in the chilled water and hot water distribution system during peak demand periods. The differential pressure between supply and return headers at buildings far from the central plants was negative, in the middle area was neutral, and close to the plant was positive. Various modifications were performed over the years without completely solving this problem. Discovering the real cause could help improve the thermal distribution and help determine how to best operate the system. This paper presents the causes and recommendations for the correction of the thermal distribution problems, which include not only malfunctioning automatic building hydraulic controls, but also some building hydraulic configurations themselves. Based on the findings, the thermal distribution problems will be solved by repairing the controls and retrofitting building hydraulic configurations as needed.

Chen, H.; Deng, S.; Bruner, H. L.; Claridge, D. E.; Turner, W. D.

2002-01-01T23:59:59.000Z

497

Innovative Applications of Genetic Algorithms to Problems in Accelerator Physics  

Science Conference Proceedings (OSTI)

The genetic algorithm (GA) is a relatively new technique that implements the principles nature uses in biological evolution in order to optimize a multidimensional nonlinear problem. The GA works especially well for problems with a large number of local extrema, where traditional methods (such as conjugate gradient, steepest descent, and others) fail or, at best, underperform. The field of accelerator physics, among others, abounds with problems which lend themselves to optimization via GAs. In this paper, we report on the successful application of GAs in several problems related to the existing CEBAF facility, the proposed MEIC at Jefferson Lab, and a radio frequency (RF) gun based injector. These encouraging results are a step forward in optimizing accelerator design and provide an impetus for application of GAs to other problems in the field. To that end, we discuss the details of the GAs used, including a newly devised enhancement, which leads to improved convergence to the optimum and make recommendations for future GA developments and accelerator applications.

Alicia Hofler, Balsa Terzic, Matthew Kramer, Anton Zvezdin, Vasiliy Morozov, Yves Roblin, Fanglei Lin, Colin Jarvis

2013-01-01T23:59:59.000Z

498

Fuzzy and interval finite element method for heat conduction problem  

E-Print Network (OSTI)

Traditional finite element method is a well-established method to solve various problems of science and engineering. Different authors have used various methods to solve governing differential equation of heat conduction problem. In this study, heat conduction in a circular rod has been considered which is made up of two different materials viz. aluminum and copper. In earlier studies parameters in the differential equation have been taken as fixed (crisp) numbers which actually may not. Those parameters are found in general by some measurements or experiments. So the material properties are actually uncertain and may be considered to vary in an interval or as fuzzy and in that case complex interval arithmetic or fuzzy arithmetic has to be considered in the analysis. As such the problem is discretized into finite number of elements which depend on interval/fuzzy parameters. Representation of interval/fuzzy numbers may give the clear picture of uncertainty. Hence interval/fuzzy arithmetic is applied in the finite element method to solve a steady state heat conduction problem. Application of fuzzy finite element method in the said problem gives fuzzy system of linear equations in general. Here new methods have also been proposed to handle such type of fuzzy system of linear equations. Corresponding results are computed and has been reported here.

Sarangam Majumdar; Sukanta Nayak; S. Chakraverty

2012-09-26T23:59:59.000Z

499

V-207: Wireshark Multiple Denial of Service Vulnerabilities ...  

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

7: Wireshark Multiple Denial of Service Vulnerabilities V-207: Wireshark Multiple Denial of Service Vulnerabilities July 31, 2013 - 1:59am Addthis PROBLEM: Multiple vulnerabilities...

500

U-173: Symantec Web Gateway Multiple Vulnerabilities | Department...  

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

3: Symantec Web Gateway Multiple Vulnerabilities U-173: Symantec Web Gateway Multiple Vulnerabilities May 21, 2012 - 7:00am Addthis PROBLEM: Symantec Web Gateway Multiple...