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Showing 1 to 16 of 16 for “"mathematische Modellierung"”.
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Mathematische Modellierung des MDEA-Absorptionsprozesses
In chemical engineering, absorption processes are used in many cases for the purpose of selective separation of one or more gas components from a multicomponent gas stream. Compared to adsorption, which uses large solid surfaces, absorption has one main advantage: i.e. a countercurrent flow of both …
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Experimentelle und mathematische Modellierung der Festbettvergasung am Beispiel der Gleichstromvergasung von Holzhackschnitzeln
The aim of the present work about experimental and mathematical modelling of moving-bed-gasification was to increase the transparency of the process. At Dresden University of Technology a gasifier with a high number of measuring points was used. Two-dimensional profiles of temperature and …
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Modellierung und Simulation des Transports und der Phasenuebergaenge von leichtfluechtigen chlorierten Kohlenwasserstoffen in der wasserungesaettigten Bodenzone im Hinblick auf das Sanierungsverfahren der Bodenluftabsaugung
… der Phasen ausgegangen. Der Schwerpunkt der mathematischen Modellierung liegt auf einer detaillierten Beschreibung und Quantifizierung der physikalisch-chemischen Prozesse, welche die kinetischen Massenuebergaenge zwischen der gasfoermigen, waessrigen und festen Phase steuern. Modellparameter …
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Beiträge zur energetischen Nutzung von Biomassen in ZWSF-Anlagen und Festbettvergasungsanlagen
… beim Einsatz von Biomasse vorliegt. Die mathematische Modellierung verdeutlicht die Nutzbarkeit von Simulationsprogrammen bei der Untersuchung von Einflüssen der Co-Verbrennung auf die NOx-Bildung. Hier wurden die Gesichtspunkte der Luftzahl, der Luftstufung, des Wassergehaltes, das …
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Generalized Feedback Control and Application to Vehicle Path Following Control
… der Systemzustände nicht zu verlassen. Die mathematische Modellierung der Kurzzeitmotivation verlangt nach einer tieferen Betrachtung. Aus diesem Grund wird ein geschlossener mathematischer Ansatz eingeführt, um einen eindeutigen GD-Plan zu ermitteln ausgehend von einer Menge von Präferenzen …
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Formal Specification and Rule-Based Refinement of Software Components
… benötigt formale Konzepte und Modellierungstechniken, da die hohe Komplexität solcher Systeme häufig die Konsistenz dieser beeinträchtigt. Diese Komplexität resultiert im Wesentlichen aus der nichtdeterminierten und nebenläufigen Interaktion der Komponenten und ist auch ein …
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Analysing concerted criteria for local dynamic properties of metabolic systems
Metabolic systems tend to exhibit steady states that can be measured in terms of their concentrations and fluxes. These measurements can be regarded as a phenotypic representation of all the complex interactions and regulatory mechanisms taking place in the underlying metabolic network. Such …
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Mathematical modelling of host-disease-drug interactions in HIV disease
The human immunodeficiency virus (HIV) has resisted nearly three decades of efforts targeting a cure. Sustained suppression of the virus has remained a challenge, mainly due to the remarkable evolutionary adaptation that the virus exhibits by the accumulation of drug-resistant mutations in its …
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The plant cytoskeleton as a transportation network
The cytoskeleton is an essential component of living cells. It is composed of different types of protein filaments that form complex, dynamically rearranging, and interconnected networks. The cytoskeleton serves a multitude of cellular functions which further depend on the cell context. In animal …
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Cell physiology based pharmacodynamic modeling of antimicrobial drug combinations
Mathematical models of bacterial growth have been successfully applied to study the relationship between antibiotic drug exposure and the antibacterial effect. Since these models typically lack a representation of cellular processes and cell physiology, the mechanistic integration of drug action is …
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Modeling and model-based control of membrane bioreactors
Water is a global resource indispensable for life on earth. Its responsible and sustainable use and reuse is a major challenge of the 21st century. The increasing world population and industrialization lead to a rising demand for potable and process water, and in many areas existing supplies are …
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Lattice-gas cellular automata for the analysis of cancer invasion
Cancer cells display characteristic traits acquired in a step-wise manner during carcinogenesis. Some of these traits are autonomous growth, induction of angiogenesis, invasion and metastasis. In this thesis, the focus is on one of the latest stages of tumor progression, tumor invasion. Tumor …
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Model-based experimental analysis of enzyme kinetics in aqueous-organic biphasic systems
Immobilization of biocatalysts in hydrogel beads which are suspended in organic solvents is a promising approach for the production of hydrophobic fine chemicals. Due to the superposition of mass transfer, diffusion, and enzyme reaction the rational design of such immobilizates is rather complex. …
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Empirical modelling of spectrum use and evaluation of adaptive spectrum sensing in dynamic spectrum access networks
The increasing popularity of wireless communication and multimedia applications yields a growing demand for radio spectrum. However, most of the commercially interesting spectrum has been assigned to various services and allocating further spectrum is a cumbersome process. Some authors claim that …