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SysMon – A framework for monitoring and measuring real-time propertiesPettersson, Andreas, Nilsson, Fredrik January 2012 (has links)
ABB SA Products designs and manufactures complex real-time systems. The real-time properties of the system are hard to measure and test especially in the long run, e.g. monitoring a system for months out in the real environment. ABB have started developing their own tool called JobMon for monitoring timing requirements, but they needed to measure more properties than time and in a more dynamic way than JobMon is constructed today. The tool must be able to measure different kind of data and be able to be monitor as long as the system itself. This thesis first does a survey and evaluation on existing commercial tools and if there exists a tool that can be integrated to the system and fulfill all demands. Different trace recorders and system monitoring tools are presented with its properties and functions. The conclusion is that there is no such tool and the best solution is to design and develop a new tool. The result is SysMon, a dynamic generic framework for measuring any type of data within a real-time system. The main focus for measuring during this thesis is time measurements, but no limits or assumptions of data types are made, and during late steps of the development new types of measurements are integrated. SysMon can also handle limits for measurements and, if required, take pre-defined actions e.g. triggering a logging function and saving all information about the measurement that passed the limit. The new tool is integrated to the system and evaluated thoroughly. It is an important factor to not steal too much resource from the system itself, and therefore a measurement of the tool’s intrusiveness is evaluated. / ABB SA Products designar och konstruerar komplexa realtidssystem. Realtidsegenskaperna för systemen är svåra att mäta och testa, speciellt under långa tidsperioder, t.ex. under drift i dess riktiga miljö under månader av online tid. ABB SA Products har börjat utvecklat ett eget verktyg, JobMon, för att kunna övervaka och mäta egenskaper i form av tid. Men behovet är större än att endast mäta tid och alla möjliga slags data behöver övervakas och utvärderas. Det här examensarbetet gör först en undersökning och utvärdering av existerande kommersiella verktyg och om det redan finns ett verktyg som uppfyller alla krav. Olika tracerecorders och systemövervakningsverktyg är presenterade med dess egenskaper och funktioner. Slutsatsen är till sist att det inte finns något existerande verktyg och att den bästa lösningen är att utveckla ett nytt verktyg. Resultatet är SysMon, ett dynamisk generisk ramverk för att mäta vilken form av data som helst. Huvudfokus under examensarbetet är tidsmätningar, men inga antaganden om vilka datatyper som kan användas görs. Under den senare delen av examensarbetet implementeras också en ny typ av mätning i system ticks. SysMon kan också hantera gränser för mätningar och, om nödvändigt, exekvera fördefinierade funktioner, t.ex. trigga en loggning och spara nödvändig information om mätningen som överskred gränsen. Det nya verktyget blir integrerat i systemet och testat noggrant. Det är viktigt att verktyget inte tar för mycket resurser från det normala systemet och därför utförs även en utvärdering av hur resurskrävande verktyget är.
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Implementering av PostgreSQL som databashanterare för MONITORAxelsson, Jesper January 2014 (has links)
Monitors affärssystem MONITOR är under ständig utveckling och i och med detta ville man kolla upp huruvida PostgreSQL skulle kunna användas som DBMS istället för det nuvarande; Sybase SQL Anywhere. Examensarbete har därför bestått av en jämförelse hur PostgreSQL står sig jämte andra DBMS:er, en implementering utav en PostgreSQLdatabas som MONITOR arbetar mot samt ett prestandatest utav skapandet av databasen. I många avseenden verkar PostgreSQL vara ett alternativ till SQL Anywhere; Alla datatyper finns i båda dialekterna. Backup av data finns i olika utföranden och går att automatisera. Enkelt att installera och uppdatera. Ingen licensieringskostnad existerar. Support finns tillgänglig i olika former. Dock så är inte PostgreSQL ett bra DBMS att byta till i dagsläget då systemet inte fungerade på grund av att vissa uttryck inte översattes ordentligt samt att ingen motsvarighet till LIST existerar. Ännu större är dock problemet med tiden det tar att flytta data till en PostgreSQL-databas då det inte är intressant att lösa problem med funktioner i systemet om det ändå inte går att använda på grund utav att konvertering av data tar så lång tid som det gör.
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Monitor placement for estimation of voltage sags in power systemsAvendano-Mora, Jose Manuel January 2012 (has links)
Power quality related problems cause large financial losses in the order of billions worldwide. The evaluation process aimed at determining effective remedial actions starts with the correct identification and characterization of power quality disturbances. Measurements performed in the electrical power network and the corresponding collection and process of data are the primary method of characterization of the phenomena. The ideal deployment of monitoring devices would entail a monitor installed at each node of the network so that the power quality throughout the system could be directly assessed. In reality, however, technical and mostly economical constraints limit the number of monitors a network operator can install in the system. Power quality at non-monitored sites, therefore, has to be estimated by extrapolating the data from monitored sites. Consequently, it is crucial to identify the sites that provide the most accurate picture of the system’s overall power quality. Unfortunately, no recommended practices or guidelines for determining the minimum number and the best locations for optimal power quality monitoring have been prescribed in standards or reports. This thesis investigates voltage sag monitoring as part of a larger power quality monitoring scheme. The aim is to develop a methodology for optimal monitor placement for fault location and sag estimation. The thesis, divided in four main parts, focuses on network sag performance estimation and optimal monitor placement for fault localization and sag estimation. The introductory part of the thesis gives an overview of power quality surveys conducted around the world in recent years with special emphasis on the monitor placement criteria used. It also summarizes the main methods for network sag performance estimation proposed to date. The main part of the thesis firstly reviews the most referred optimal monitor placement method for sag estimation proposed in academia, highlighting its limitations. Then a robust fault location algorithm is proposed to enhance this method and overcome the identified limitations. The enhanced method is thereafter used as the basis for the generalization of one of the leading methods for optimal monitor placement for fault location in the second part of the thesis. The formulation of its optimization problem is extended for application in large power networks by adapting the modeling approach for the sag monitor placement problem. To reduce the high computational and memory burden associated with finding the optimal fault location monitor program, the thesis introduces a less memory intensive heuristic search algorithm in the third part of the thesis. A series of custom objective functions are proposed to be used with this algorithm to find optimal fault location and sag monitoring programs aimed at estimating the most critical events for customers. In the final part of the thesis, the main concepts and techniques introduced in the first three sections are combined to develop a synergistic approach to optimal monitor placement for sag characterization based on fault location. The suitability of the new method for techno-economic assessment of voltage sags using strategically or conventionally deployed monitors is established.
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Using Mathematics-Curriculum Based Measures to Predict Outcomes on the Mathematics Portion of the Mississippi Curriculum Test, Second Edition.Hogan-Samuel, Eutrophia Lenora 12 May 2012 (has links)
The nation is challenged with improving the mathematics achievement of its students. No Child Left Behind holds schools, districts, and states accountable for improving student achievement. Because high stakes tests are given at the end of the school year, schools are presented with the challenging task of developing or purchasing reliable assessments that provide accurate information describing how well students understand the skills that will be measured on the end-of-the-year high stakes tests. Curriculum based measurements are used periodically to measure student progress toward meeting objectives during the school year. The problem exists that schools are utilizing limited resources of time and money on a tool with little evidence of effectiveness in increasing mathematics scores on state assessments. The purpose of this study was to determine the relationships between the scores of the three assessments of the Mathematics-Curriculum Based Measures (M-CBM) and the scores from the mathematics MCT2 for sixth-grade students. A correlational research design is used to fulfill the purpose and test the three null hypotheses. Hypothesis 1 for this study states that there is no relationship between the August 2009 M-CBM scores and the May 2010 mathematics MCT2 scores. Hypothesis 2 states that there is no relationship between the December 2009 M-CBM scores and the May 2010 mathematics MCT2 scores. Hypothesis 3 states that there is no relationship between the April 2010 M-CBM scores and the May 2010 mathematics MCT2 scores. To test the three null hypotheses, correlation coefficients were computed using the Pearson r. The results from all three hypotheses indicated that there were moderate positive correlations between scores of the M-CBM and scores of the mathematics portion of the MCT2, with the strongest relationship being between the April M-CBM and the mathematics MCT2 scores. Further analysis was done to determine if the relationship between M-CBM and mathematics MCT2 scores continued to exist when examined by mathematics MCT2 proficiency levels. The results of this analysis indicated that relationships between M-CBM and the mathematics portion of the MCT2 scores only existed for students scoring in the proficient range.
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The Effectiveness of using the Mississippi Student Progress Monitoring System to Improve a District'S State Test ScoresWilcox, Tim 12 May 2012 (has links)
The purpose of this study was to determine if there were differences in MCT2 scores between students who attended a school district that used MSPMS and students who attended a school district that did not use MSPMS. The data for this study were archived and consisted of math and language arts MCT2 scores for two groups of students. The independent variable was the use of MSPMS for progress monitoring and the dependent variable was student scores on the MCT2. All data were analyzed using the Analysis of Covariance (ANCOVA) statistical procedure. In this study the 2008-2009 math and language arts MCT2 scores were the covariate. Hypothesis one stated that there was no statistically significant difference in the MCT2 language scores of students in Grades 4-8 in a school district using MSPMS and MCT2 language scores of students in Grades 4-8 in a district not using MSPMS while controlling for pre-test differences. The results of the first hypothesis indicated that there was a statistically significant difference between the 2009-2010 language arts MCT2 scores of a school district that used MSPMS and a district that did not use MSPMS. The district that did not use the MSPMS had higher MCT2 Language Arts overall and higher scores in fourth and sixth grades. Hypothesis two stated that there was no statistically significant difference in the MCT2 math scores of students in grades 4-8 in a school district that used the MSPMS and MCT2 math scores of students in grades 4-8 in a district that did not use the MSPMS while controlling for pre-test differences. The results of the second hypothesis indicated that there was not a significant difference in the 2009-2010 math MCT2 scores of the school district that used the MSPMS and the school district that did not use the MSPMS. The district that did not use the MSPMS had higher MCT2 Math scores overall and higher scores in sixth grade. The district that did use the MSPMS had higher MCT2 math scores in eighth grade. Further study should explore larger populations, assessment instruments of different lengths and fidelity of teacher implementation.
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Distribution Grid Response Monitor (DGROM)Gao, Ziran 27 August 2018 (has links)
No description available.
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Global Positioning System Interference and Satellite Anomalous Event MonitorMarti, Lukas January 2004 (has links)
No description available.
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A development system for the bus monitor unit for the DATAC digital data busNovacki, Stanley M., III January 1987 (has links)
No description available.
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Oxidoreductase Immobilization in Reprecipitated Polyaniline Nanostructures for Optical Biosensing ApplicationsNemzer, Louis R. 20 August 2010 (has links)
No description available.
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Charakterisierung eines schnellen Diamantdetektors als Proton-Bunch-Monitor für die Reichweiteverifikation in der ProtonentherapieWerner, Rahel-Debora 26 September 2022 (has links)
Für die Reichweiteverifikation in der Protonentherapie mittels Prompt Gamma-Ray Timing (PGT) wird ein Proton-Bunch-Monitor (PBM) benötigt, um Phaseninstabilitäten zwischen den Protonen-Mikropulsen und der Radiofrequenz (RF) des Zyklotrons zu eliminieren.
In dieser Arbeit wurde demonstriert, dass ein Diamantdetektor diese anspruchsvolle Aufgabe erfüllen kann. Dazu wurde ein polykristalliner Diamantdetektor in diversen Experimenten umfassend charakterisiert. An ELBE wurde eine Zeitauflösung von 82(6) ps für minimal-ionisierende Elektronen bestimmt. Die Auflösung bei der Detektion von Protonen klinischer Energien wurde am OncoRay ermittelt und betrug im Mittel 314(17) ps. Des Weiteren wurden Experimente durchgeführt, die auf die optimale Position des Detektors in der späteren klinischen Anwendung nahe des Degraders schließen lassen.
Bei der Anwendung als PBM konnte der Diamantdetektor Phasenverschiebungen zur RF mit einer zeitlichen Auflösung von weniger als 3 ps bei einem Messintervall von 30 ms detektieren.
Diese Phasenverschiebungen konnten auch in weiten Teilen durch das Phasenkontrollsignal U_phi, welches im Rahmen dieser Arbeit erstmalig ausgewertet wurde, bestätigt werden.
Mit dem Diamantdetektor und U_phi stehen nun zwei PBM zur Verfügung, mit denen ein zentrales Problem bei der klinischen Anwendung von PGT als Reichweite-Verifikationsmethode gelöst werden kann.:1 Motivation
2 Grundlagen der Reichweiteverifikation in der Protonentherapie
2.1 Wechselwirkung von geladenen Teilchen mit Materie
2.2 Tiefendosiskurven
2.3 Praktische Aspekte der Protonentherapie
2.4 Reichweiteunsicherheiten
2.5 Prompt Gamma-Ray Timing (PGT)
2.6 Proton-Bunch-Monitore (PBM)
3 Entwicklung eines Vorverstärkers für den Diamantdetektor
3.1 Untersuchungen mit Generatorsignalen
3.2 Untersuchungen mit radioaktiven Prüfstrahlern
3.3 Ergebnisse
4 Bestimmung der Zeitauflösung am Elektronenstrahl
4.1 Bestimmung der Zeitauflösung eines Detektors mit einer Flugzeitmessung
4.2 Experimenteller Aufbau
4.3 Datenerfassung
4.4 Ergebnisse
4.5 Zusammenfassung
5 Bestimmung der Zeitauflösung am klinischen Protonenstrahl
5.1 Experimentalraum am OncoRay
5.2 Experimenteller Aufbau
5.3 Bestimmung der Zeitauflösung eines Detektors mit einer Koinzidenzmessung
5.4 Ablauf der Messung
5.5 Datenerfassung
5.6 Ergebnisse
5.7 Diskussion
5.8 Zusammenfassung
6 Optimierung der Position des Diamantdetektors am Degrader
6.1 Vorbetrachtungen
6.2 Experimenteller Aufbau
6.3 Ergebnisse
6.4 Diskussion
6.5 Zusammenfassung
7 Einsatz des Diamantdetektors als PBM
7.1 Experimenteller Aufbau
7.2 Datenerfassung
7.3 Ablauf der Messung
7.4 Ergebnisse
7.5 Diskussion und Ausblick
7.6 Zusammenfassung
8 Zusammenfassende Diskussion
A Anhang
A.1 Produktzertifikat des Diamantdetektors
A.2 Zertifikate der radioaktiven Prüfstrahler
A.3 Feinzeit-Korrektur beim U100-Spektrometer
A.4 Zeitdifferenz-Histogramme für Variante A1 und A2 des Koinzidenzexperiments
A.5 Der Diamantdetektor als PBM bei automatischer Phasenanpassung
A.6 Der Diamantdetektor als PBM bei manueller Phasenanpassung
Literaturverzeichnis
Abbildungsverzeichnis
Tabellenverzeichnis
Liste der verwendeten Akronyme
Danksagung und Eigenständigkeitserklärung
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