1,021 research outputs found
Plug-and-Participate for Limited Devices in the Field of Industrial Automation
Ausgangspunkt und gleichzeitig Motivation dieser
Arbeit ist die heutige Marktsituation: Starke Kundenbedürfnisse
nach individuellen Gütern stehen oftmals eher auf
Massenproduktion ausgerichteten Planungs- und
Automatisierungssystemen gegenüber - die Befriedigung
individueller Kundenbedürfnisse setzt aber Flexibilität und
Anpassungsfähigkeit voraus. Ziel dieser Arbeit ist es daher,
einen Beitrag zu leisten, der es Unternehmen ermöglichen soll,
auf diese individuellen Bedürfnisse flexibel reagieren zu
können. Hierbei kann es im Rahmen der Dissertation natürlich
nicht um eine Revolutionierung der gesamten Automatisierungs-
und Planungslandschaft gehen; vielmehr ist die Lösung, die der
Autor der Arbeit präsentiert, ein integraler Bestandteil eines
Automatisierungskonzeptes, das im Rahmen des PABADIS Projektes
entwickelt wurde: Während PABADIS das gesamte Spektrum von
Planung und Maschineninfrastruktur zum Inhalt hat, bezieht sich
der Kern dieser Arbeit weitestgehend auf den letztgenannten
Punkt - Maschineninfrastruktur. Ziel war es, generische
Maschinenfunktionalität in einem Netzwerk anzubieten, durch das
Fertigungsaufträge selbstständig navigieren. Als Lösung
präsentiert diese Dissertation ein Plug-and-Participate
basiertes Konzept, welches beliebige Automatisierungsfunktionen
in einer spontanen Gemeinschaft bereitstellt. Basis ist ein
generisches Interface, in dem die generellen Anforderungen
solcher ad-hoc Infrastrukturen aggregiert sind. Die
Implementierung dieses Interfaces in der PABADIS
Referenzimplementierung sowie die Gegenüberstellung der
Systemanforderungen und Systemvoraussetzungen zeigte, das
klassische Plug-and-Participate Technologien wie Jini und UPnP
aufgrund ihrer Anforderungen nicht geeignet sind -
Automatisierungsgeräte stellen oftmals nur eingeschränkte
Ressourcen bereit. Daher wurde als zweites Ergebnis neben dem
Plug-and-Participate basierten Automatisierungskonzept eine
Plug-and-Participate Technologie entwickelt - Pini - die den
Gegebenheiten der Automatisierungswelt gerecht wird und
schließlich eine Anwendung von PABADIS auf heutigen
Automatisierungsanlagen erlaubt. Grundlegende Konzepte von
Pini, die dies ermöglichen, sind die gesamte Grundarchitektur
auf Basis eines verteilten Lookup Service, die Art und Weise
der Dienstrepräsentation sowie die effiziente Nutzung der
angebotenen Dienste. Mit Pini und darauf aufbauenden Konzepten
wie PLAP ist es nun insbesondere möglich,
Automatisierungssysteme wie PABADIS auf heutigen Anlagen zu
realisieren. Das wiederum ist ein Schritt in Richtung
Kundenorientierung - solche Systeme sind mit Hinblick auf
Flexibilität und Anpassungsfähigkeit gestaltet worden, um
Kundenbedürfnissen effizient gerecht zu werden
“72nd Annual Meeting of the American Association of Physical Anthropologists”, Tempe, Arizona 23rd-26th April 2003
Drone Maneuverability Around Built and Natural Structures: Phase I, Fabrication and Testing of Mock Environments
Undergraduate
Applie
Psychosocial interventions for patients with chronic disease
Treatment of patients with chronic diseases will be one of the main challenges of medicine in the future. This paper presents an overview of different origins, mechanism, and symptoms necessary for understanding new and different interventions that include a psychosomatic view
Exploring Heterogeneous Phenotypes in Response to Stress
This work combines traditional microbiology with bioinformatic and synthetic biology approaches to study antibiotic tolerance. Antibiotic tolerance is a widespread phenomenon that facilitates antibiotic resistance and decreases the effectiveness of antibiotic treatment. Tolerance is distinct from antibiotic resistance, because tolerance is short term survival and typically results from phenotypic variations rather than genetic variation. The molecular mechanisms underlying tolerance are varied and debated in the literature. I have explored two intracellular processes related to tolerance, toxin-antitoxin (TA) systems (Chapter 2) and proteases (Chapter 4). Specifically, I focus on the ratio of antitoxin-to-toxin in type II TA systems, because type II TA systems must be regulated in such a way that antitoxins are more prevalent than their toxins. Our analysis of RNA-sequencing and ribosome profiling data demonstrates that most type II TA systems in E. coli are regulated at the translational level, while others rely on various combinations of transcriptional and post-transcriptional regulation. Before publishing this article, researchers often cited transcriptional regulation as the primary method of regulating TA systems. Studying antibiotic tolerance and other subpopulations necessitates the ability to study single-cell dynamics in the context of the whole population. To facilitate single-cell analysis, we have developed single-cell tracking software that leverages machine learning to identify cells. The software then tracks the cell based on this classification and returns data on cell size, location, division and fluorescence. The software provides the means of quantifying cell behavior before and after antibiotic treatment. One such system we would like to apply this software to is our work on proteolytic queueing and antibiotic tolerance. Proteases are responsible for protein degradation and, as such, regulate many cellular functions. To better identify the role proteases play in persistence, we used proteolytic queueing to interfere with proteolytic activity. We found that interfering with degradation at the protease ClpXP increases antibiotic tolerance ~80 and ~60 fold in an E. coli population treated with ampicillin and ciprofloxacin, respectively. I used stochastic modeling to support our results, and we have experimentally determined that altering the expression of the synthetic system affects the level of tolerance in the population. I am currently using next-generation sequencing to identify the systems being affected by the queue
Are the supporters of socialism the losers of capitalism?
Does a country’s democratisation have a long-lasting impact on former supporters or opponents of the bygone regime? Previous studies have been inconclusive. Max Deter and Martin Lange analyse how former supporters and opponents of the socialist German Democratic Republic (GDR) performed within the market-based democracy of reunified Germany. Protesters, who helped to overthrow the socialist regime, show higher life satisfaction and better labour market outcomes after reunification. Former members of the ruling socialist party and employees in state-supervised sectors became substantially less satisfied
Educating with the arts : how art education policy impacts educational outcomes.
The purpose of this paper is to explore the impact of art education policy on educational outcomes. While past literature focuses on how art in the classroom can raise individual test scores, this research takes a broader look at how policies impact outcomes on a state by state basis. The first part of the study uses OLS regression to estimate the effects of art policies on reading, math, and science standardized test scores. The results show that individual policies, as well as the total number of policies, have significant effects on the test scores. The second part compares the graduation and attendance rates, Academic Performance Index scores, and A-F Grades of Oklahoma schools that are OKA+ against those that are not. The results illustrate that while there was no significant difference between the two in A-F Grades, schools that prioritize art education do have higher graduation and attendance rates, as well as higher Academic Performance Index scores. Overall, this research provides evidence that enactment of art education policies state-wide can produce positive educational outcomes
Attracted to money and risk: the personality of finance professionals
Finance professionals have higher risk preferences and monetary motivation than the population as a whole. Max Deter and André van Hoorn analyse data on 465 bankers in Germany surveyed over 2,000 times between 2000 and 2017. They show that the preferences for risk and money are already present before they start to work in finance. The results indicate a business norm in the financial sector that attracts professionals who think in a riskier and more income-focused manner
- …