Refine
Year of publication
- 2014 (58) (remove)
Document Type
- Conference Proceeding (58) (remove)
Conference Type
- Konferenzartikel (41)
- Konferenz-Abstract (10)
- Konferenz-Poster (3)
- Konferenzband (2)
- Sonstiges (2)
Language
- English (58) (remove)
Keywords
- Produktion (3)
- RoboCup (3)
- Ausbildung (2)
- Design (2)
- Herzkrankheit (2)
- Hochtemperatur (2)
- Katheter (2)
- Maschinenelement (2)
- Optik (2)
- Photonik (2)
- Stahl (2)
- standardization (2)
- 3D displays (1)
- 3D modeling (1)
- 3D printing (1)
- Abbreviate Injury Scale (1)
- Absatz (1)
- Accident Analysis (1)
- Advanced Driver Assistance System (1)
- Air Traffic Control (1)
- Algorithmus (1)
- Anbieter (1)
- Austausch (1)
- Car-2-Car communication (1)
- Car-2-X communication (1)
- Car-to-Car-(C2C)-Communication (1)
- Cloud Computing (1)
- Cloud Security (1)
- Cloud Service Provider (1)
- Cloud User (1)
- Cogeneration (1)
- Collision Point (1)
- Communication Systems (1)
- Cyber Physical Systems, (1)
- DDS (1)
- Data Distribution Service (1)
- Data communications (1)
- Data modeling (1)
- Databases (1)
- Elektrochemie (1)
- Elektrofahrzeug (1)
- Energy Management (1)
- Enhanced Security (1)
- Equations (1)
- Erweitere Realität (1)
- Grid Integration (1)
- Herstellung (1)
- IEEE802.11p/WAVE (1)
- Information Systems (1)
- Intelligentes Stromnetz (1)
- Internet der Dinge (1)
- Internet of Things (1)
- Kalibrieren (1)
- Kernspintomografie (1)
- Kinetik (1)
- Konsum (1)
- Kontrolltheorie (1)
- Leistung (1)
- Leistungselektronik (1)
- Lithium compounds (1)
- Machine-to- Machine-(M2M)-Communication (1)
- Materialwirtschaft (1)
- Mathematical model (1)
- Mobile devices (1)
- Netzwerk (1)
- PV System (1)
- Preis (1)
- Produktentwicklung (1)
- Prototyp (1)
- Segmentierung (1)
- Substrates (1)
- Surface acoustic waves (1)
- Target Vehicle (1)
- Ultraschall (1)
- VANETs (1)
- VRU eSafety (1)
- Verfahren (1)
- Vervielfältigung (1)
- Web-Applikation (1)
- Wärmepumpe (1)
- Zwischenmodulation (1)
- ad hoc networks (1)
- car-to-car communication (1)
- data replication (1)
- distributed systems (1)
- e-learning (1)
- emulation (1)
- inter-vehicle communication (1)
- intra-vehicle communication (1)
- kanal (1)
- localization (1)
- middleware (1)
- performance analysis (1)
- performance evaluation (1)
- railways (1)
- real time (1)
- secondary surveillance radar (1)
- service engineering (1)
- service research (1)
- subsystem design (1)
- vehicular networks (1)
- wireless access networks (1)
- wireless sensor networks (1)
- wireless vehicular network (1)
Institute
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (37)
- Fakultät Wirtschaft (W) (9)
- Fakultät Medien und Informationswesen (M+I) (bis 21.04.2021) (8)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (7)
- ivESK - Institut für verlässliche Embedded Systems und Kommunikationselektronik (6)
- INES - Institut für nachhaltige Energiesysteme (2)
- POIM - Peter Osypka Institute of Medical Engineering (2)
Open Access
- Open Access (22)
- Closed (21)
- Closed Access (14)
- Bronze (5)
Several cloud schedulers have been proposed in the literature with different optimization goals such as reducing power consumption, reducing the overall operational costs or decreasing response times. A less common goal is to enhance the system security by applying specific scheduling decisions. The security risk of covert channels is known for quite some time, but is now back in the focus of research because of the multitenant nature of cloud computing and the co-residency of several per-tenant virtual machines on the same physical machine. Especially several cache covert channels have been identified that aim to bypass a cloud infrastructure's sandboxing mechanism. For instance, cache covert channels like the one proposed by Xu et. al. use the idealistic scenario with two alternately running colluding processes in different VMs accessing the cache to transfer bits by measuring cache access time. Therefore, in this paper we present a cascaded cloud scheduler coined C 3 -Sched aiming at mitigating the threat of a leakage of customers data via cache covert channels by preventing processes to access cache lines alternately. At the same time we aim at maintaining the cloud performance and minimizing the global scheduling overhead.
This book constitutes the proceedings of the 6th International Workshop on Communication Technologies for Vehicles, Nets4Cars/Nets4Trains/Nets4Aircraft 2014, held in Offenburg, Germany in May 2014. The 10 papers presented in this volume were carefully reviewed and selected from 15 submissions. The book also contains 4 invited papers. The contributions are organized in topical sections named: automotive issues, car-to-car, aviation issues, in-car, and infrastructures.
Efficient, secure and reliable communication is a major precondition for powerful applications in smart metering and smart grid. This especially holds true for the so called primary communication in the Local Metrological Network (LMN) between meter and data collector, as the LMN comes with the most stringent requirements with regard to cost, range, as well as bandwidth and energy efficiency. Until today, LMN field tests are operated all over the world. In these installations, however, energy autarkic systems play a marginal role. This contribution describes the results of the framework 7 (FP 7) WiMBex project (“Remote wireless water meter reading solution based on the EN 13757 standard, providing high autonomy, interoperability and range”). In this project an energy autarkic water meter was developed and tested, which follows the specification of the Wireless M-Bus protocol (EN 13757). The complete system development covers the PCB with the RF transceiver and the microcontroller, the energy converter and storage, and the software with the protocol. This contribution especially concentrates on the design, the development and the verification of the routing protocol. The routing protocol is based on the Q mode of EN13757-5 (Wireless M-Bus) and was extended by an additional energy state related parameter. This extension is orthogonal to the existing protocol and considers both the charge level and the charge characteristics (rate of occurrences, intensity). The software was implemented in NesC under the operating system TinyOS. The system was verified in an automated test bed and in field tests in UK and Ireland.
Introduction: Despite lots of developments in the last years, radiofrequency ablation of rhythm diseases is a safe but still complex procedure that requires special experience and expertise of the physicians and biomedical engineers. Thus, there is a need of special trainings to become familiar with the different equipment and to explain several effects that can be observed during clinical routine.
Methods: The Offenburg University of Applied Sciences offers a biomedical engineering study path specialized in the fields of cardiology, electrophysiology and cardiac electronic implants. It`s Peter Osypka Institute for Pacing and Ablation provides teaching following the slogan “Learning by watching, touching and adjusting”. It conducts lots of trainings for students as well as young physicians interested in electrophysiology and radiofrequency ablation.
Results: In-vitro trainings will be provided using the Osypka HAT 200 and HAT300s, Stockert EPshuttle and SmartAblate system as well as the Boston EPT-1000XP and Maestro 3000 and the Radionics RFG-3E cardiac radio frequency ablation generators. All of them require different handling as well as special accessories like catheter connection cables or boxes and back plates. The participants will be trained in the setup of temperature, power and cut-off impedance dependent on different ablation catheters. Furthermore troubleshooting in hard- and software is part of the program. Performing procedures in pork or animal protein and using physiological saline solution to simulate the blood flow, they can study the influence of contact force and impedance on lesion geometry etc. and to avoid adverse effects like “plops”. Lots of catheter types are available: 4mm tip, 8mm standard and gold tip, open and closed irrigated tip ablation catheters of different companies. The experiments will be completed by measuring the lesion size dependent on the used catheter type and ablation settings.
Conclusion: In-vitro training in radiofrequency ablation is a challenge for biomedical engineering students and young physicians.
Active safety systems for advanced driver assistance systems act within a complex, dynamic traffic environment featuring various sensor systems which detect the vehicles’ surroundings and interior. This paper describes the recent progress towards a performance evaluation of car-to-car communication (C2C) for active safety systems - in particular for crash constellation prediction. The methodology introduced in this work is designed to evaluate the impact of different sensors on the accuracy of a crash constellation prediction algorithm. The benefit of C2C communication (viewed as a virtual sensor) within a sensor data fusion architecture for pre-crash collision prediction is explored. Therefore, a simulation environment for accident scenarios analysis reproducing real-world sensor behaviour, is designed and implemented. Performance evaluation results show that C2C increases confidence in the estimated position of the oncoming vehicle. With C2C enhancement the given accuracy in time-to-collision (TTC) estimation is achievable about 110 ms earlier for moderate velocities at TTC range of [0.5s..0.2s]. The uncertainty in the vehicle position prediction at the time of collision can be reduced about half by integrating C2C communication into the sensor data fusion.
This paper presents the competence-, business- and research-orientated education approach Fit4PracSis (= Fit for Practice and Sciences). Fit4PracSis is designed for freshman students in interdisciplinary engineering degree programs. It is an education concept, which is establishing a relationship to the future profession and scientific work during the introductory study phase. The freshman students will be early trained in important skills, which are necessary for the successful achievement of the final degree and the future business and research activities.
Meeting the requirements of smart grids local, decentralized subnets will offer additional potentials to stabilize and compensate the utility grid mainly on the low voltage level. In a quite complex configuration these decentralized energy systems are combined power, heat and cooling power distributions. According to the regional and local availability of renewable energy sources advanced energy management concepts should consider climatic conditions as well as the state of the interacting utility grid and consumption profiles. The approach uses demonstrational setups to develop a forecast based energy management for trigeneration subnets by taking into account the running conditions of local electrical and thermal energy conversion units. This should lead to the best coverage of the demand and supporting/stabilizing the utility grid at the same time. For the first of three demonstrational projects the priorities of the subnet are given with the maximization of the CHP operation to substitute a major part of the heating and cooling power delivered by electric heaters or compression chillers.