Contracting : ein komplettierendes Finanzierungsinstrument für innovative technische Energieversorgungslösungen

Magdeburg, Univ., Fak. für Verfahrens- und Systemtechnik, Diss., 2011

Enhancing the performance of spread spectrum techniques in different applications

Spread spectrum, Automotive Radar, Indoor Positioning Systems, Ultrasonic and Microwave Imaging, super resolution technique and wavelet transform

Emotional modulation of memory encoding and performance monitoring

Performance monitoring, ERN, CRN, Pe, Memory, Llist learning, Emotion, IAPS, N2, Reinforcement Learning Hypothesis, Conflict Monitoring Hypothesis

Firing activities of auditory cortical neurons during categorical task performance in behaving monkeys

Category, frequency contour, monkey, auditory cortex, neuron, spike

Theory and measurement of social intelligence as a cognitive performance construct

Social intelligence

Analysis of the European Union's performance as an international mediator in the South Caucasus with respect to peace building in the region : ENP and conflict resolution in the South Caucasus

Magdeburg, Univ., Fak. für Geistes-, Sozial- und Erziehungswiss., Diss., 2009

Analysis, design, optimization and realization of compact high performance printed RF filters

Magdeburg, Univ., Fak. für Elektrotechnik und Informationstechnik, Diss., 2010

Modeling, evaluation and predicting of IT human resources performance

Magdeburg, Univ., Fak. für Informatik, Diss., 2012

Efficiency, corporate governance and performance of European commercial banks

Magdeburg, Univ., Fak. für Wirtschaftswiss., Diss., 2013

Untersuchung der Auswirkung der MAC-Zugriffsverfahren im IEEE 802.11 auf die L4-Performance in mobilen IP-Netzen

Gegenstand der hier vorliegenden Arbeit ist die Untersuchung der Auswirkung der MAC-Zugriffsverfahren CSMA/CA auf das Transportschicht-Protokoll in WLAN-Netzen. Zum Erreichen des Ziels dieser Arbeit wurde es zuerst nachgewiesen, dass CSMA/CA zum TCP-Retransmission führen könnte. Dann die kumulative Verteilung der OWDs auf jedem Szena-rio analysiert. Am Ende wurde die kumulative Verteilung der Abstände zwischen den Spitzenwerten der OWD nach der Datenverarbeitung auf jedem Szenario analysiert.

Energieeffizienz in Gebäuden durch innovative Gebäudetechnik, Durchgängiges Engineering von Gebäudesystemen

Aufbauend auf den Arbeiten von Prof. Dr. Müller (Hochschule Wismar) wird am Beispiel eines Fachklinikums mit Forschungslaboratorien eine Methode und Struktur der integrierten Planung zur Gebäudetechnik und Gebäudeautomation vorgestellt. Die linear integrierte Planung der HOAI wird aufgelöst in einen auf mehreren Varianten basierenden Planungsablauf, der durch die variablen Kriterien Energieeffizienz und Ökonomie zu einer optimierten Gesamtlösung führt.

Improving TCP Performance on CSMA/CA Connections

In IP networks, most of packets, that have been dropped, are recovered after the expiration of retransmission timeouts. These can result in unnecessary retransmissions and needless reduction of congestion window. An inappropriate retransmission timeout has a huge impact on TCP performance. In this paper we have proved that CSMA/CA mechanism can cause TCP retransmissions due to CSMA/CA effects. For this we have observed three wireless connections that use CSMA/CA: with good link quality, poor link quality and in presence of cross traffic. The measurements have been performed using real devices. Through tracking of each transmitted packet it is possible to analyze the relation between one-way delay and packet loss probability and the cumulative distribution of distances between peaks of OWDs. The distribution of OWDs and the distances between peaks of OWDs are the most important parameters of tuning TCP retransmission timeout on CSMA/CA networks. A new perspective through investigating the dynamical relation between one-way delay and packet loss ratio depending on the link quality to enhance the TCP performance has been provided.

A Wireless Mesh Network NS-3 Simulation Model: Implementation and Performance Comparison With a Real Test-Bed

Wireless mesh networks present an attractive communication solution for various research and industrial projects. However, in many cases, the appropriate preliminary calculations which allow predicting the network behavior have to be made before the actual deployment. For such purposes, network simulation environments emulating the real network operation are often used. Within this paper, a behavior comparison of real wireless mesh network (based on 802.11s amendment) and the simulated one has been performed. The main objective of this work is to measure performance parameters of a real 802.11s wireless mesh network (average UDP throughput and average one-way delay) and compare the derived results with characteristics of a simulated wireless mesh network created with the NS-3 network simulation tool. Then, the results from both networks are compared and the corresponding conclusion is made. The corresponding results were derived from simulation model and real-worldtest-bed, showing that the behavior of both networks is similar. It confirms that the NS-3 simulation model is accurate and can be used in further research studies.

Light-weight composite environmental performance indicators (LWC-EPI)

Magdeburg, Univ., Fak. für Informatik, Diss., 2014

Conceptual Foundations of Modelling of Innovative Production Projects

At the moment there is a lack of methodological approaches to formalization of management of innovative projects relating to production systems, as well as to adaptation and practical use of the existing approaches. This article is about one potential approach to the management of innovative projects, which makes the building of innovative process models possible based on objective approach. It outlines the frameworks for the building of innovative project models, and describes the method of transition from conceptual modelling to innovative project management. In this case, the model alone and together with parameters used for evaluation of the project may be unique and depends on the special features of the project, preferences of decision-making person, and production and economic system in which it is to be implemented. Unlike existing approaches, this concept does not place any restrictions on types of models and makes it possible to take into account the specificities of economic and production systems. Principles embodied in the model allow its usage as a basis for simulation model to be used in one of specialized simulation systems, as well as for information system providing information support of decision-making process in production and economic systems both newly developed by the company (enterprise) and designed on the basis of available information systems that interact through the exchange of data. In addition, this article shows that the development of conceptual foundations of innovative project management in the economic and production systems is inseparable from the development of the theory of industrial control systems, and their comprehensive study may be reduced to a set of elements represented as certain algorithms, models and evaluations. Thus, the study of innovative process may be conducted in both directions: from general to particular, and vice versa.