Refine
Year of publication
- 2018 (62) (remove)
Document Type
- Conference Proceeding (62) (remove)
Conference Type
- Konferenzartikel (45)
- Konferenz-Abstract (13)
- Sonstiges (3)
- Konferenz-Poster (1)
Language
- English (62) (remove)
Is part of the Bibliography
- yes (62)
Keywords
- RoboCup (3)
- 5G mobile communication (2)
- Access protocols (2)
- Decoding (2)
- Gamification (2)
- Multiuser detection (2)
- Payloads (2)
- Physical layer (2)
- access protocols (2)
- decoding (2)
- network coding (2)
- 3D-Time-of-Flight Cameras (1)
- Affective Computing (1)
- Ageing (1)
- Assistive Technologies (1)
- Atrial fibrillation (1)
- Atrioventricular delay (1)
- Augmented Reality (1)
- Batteries (1)
- Biventricular pacing (1)
- Cardiac resynchronization therapy (1)
- CoBot (1)
- Context-awareness (1)
- Deaf-Blindness (1)
- Electrochemistry (1)
- Emotion Recognition (1)
- Finite element analysis (1)
- Fractionated atrial signals (1)
- Fractionated ventricular signals (1)
- Harmonic analysis (1)
- Human-Robot Collaboration (1)
- Knowledge-based Innovation (1)
- Left atrial ECG (1)
- Left atrial delay (1)
- Left cardiac ECG (1)
- Lithium niobate (1)
- Lithium-ion battery (1)
- MEMS (1)
- MPC (1)
- Metallization (1)
- Mikrostruktur (1)
- Modelling (1)
- PV Applications, Smart PV, PV Battery Systems, PV Power Supplies (1)
- Photovoltaic (1)
- Plastizität (1)
- Rehabilitation (1)
- Roboter (1)
- Robotics (1)
- Robots (1)
- Safe Speed and Separation Monitoring. (1)
- Signal averaging ECG (1)
- Smart Grid (1)
- Smart wearables (1)
- Social Robots (1)
- Soziale Roboter (1)
- Spectral-temporal mapping (1)
- Stahl (1)
- Substrates (1)
- TRIZ (1)
- Task Analysis (1)
- Transesophageal electrocardiography (1)
- Ventricular tachycardia (1)
- Wearables (1)
- accelerometer (1)
- cloud security (1)
- cluster (1)
- cross-industry innovation (1)
- cyclic plasticity (1)
- eco-innovation (1)
- glass (1)
- gyroscope (1)
- hot work tool steel (1)
- inertial measurement unit (1)
- innovation management (1)
- laser material processing (1)
- machine learning (1)
- particle coarsening (1)
- pigment paste (1)
- printing technologies (1)
- process engineering (1)
- project-based learning (1)
- scanning electron microscope (SEM) (1)
- surface treatment (1)
- temperature dependency (1)
Institute
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (32)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (12)
- ivESK - Institut für verlässliche Embedded Systems und Kommunikationselektronik (12)
- Fakultät Medien und Informationswesen (M+I) (bis 21.04.2021) (10)
- INES - Institut für nachhaltige Energiesysteme (7)
- ACI - Affective and Cognitive Institute (4)
- Fakultät Wirtschaft (W) (4)
- CRT - Campus Research & Transfer (1)
- WLRI - Work-Life Robotics Institute (1)
- Zentrale Einrichtungen (1)
Open Access
- Closed Access (35)
- Open Access (25)
- Bronze (3)
- Closed (2)
Targeting complex fractionated atrial electrocardiograms by automated algorithms during ablation of persistent atrial fibrillation has produced conflicting outcomes in previous electrophysiological studies and catheter ablation of atrial fibrillation and ventricular tachycardia. The aim of the investigation was to evaluate atrial and ventricular high frequency fractionated electrical signals with signal averaging technique.
Methods: Signal averaging electrocardigraphy allows high resolution ECG technique to eliminate interference noise signals in the recorded ECG. The algorithm use automatic ECG trigger function for signal averaged transthoracic, transesophageal and intra-cardiac ECG signals with novel LabVIEW software.
Results: The analysis in the time domain evaluated fractionated atrial signals at the end of the signal averaged P-wave and fractionated ventricular signals at the end of the QRS complex. We evaluated atrial flutter in the time domain with two-to-one atrioventricular conduction, 212.0 ± 4.1 ms atrial cycle length, 426.0 ± 8.2 ms ventricular cycle length, 58.2 ± 1.8 ms P-wave duration, 119.6 ± 6.4 ms PQ duration, 103.0 ± 2.4 ms QRS duration and 296.4 ± 6.8 ms QT duration. The analysis in the frequency domain evaluated high frequency fractionated atrial signals during the P-wave and high frequency fractionated ventricular signals during QRS complex.
Conclusions: Spectral analysis of signal averaging electrocardiography with novel LabVIEW software can be utilized to evaluate atrial and ventricular conduction delays in patients with atrial fibrillation and ventricular tachycardia. Complex fractionated atrial and ventricular electrocardiograms may be useful parameters to evaluate electrical cardiac bradycardia and tachycardia signals in atrial fibrillation and ventricular tachycardia ablation.
Cardiac resynchronization therapy (CRT) with hemodynamic optimized biventricular pacing is an established therapy for heart failure patients with sinus rhythm, reduced left ventricular ejection fraction and wide QRS complex. The aim of the study was to evaluate electrical right and left cardiac atrioventricular delay and left atrial delay in CRT responder and non-responder with sinus rhythm.
Methods: Heart failure patients with New York Heart Association class 3.0 ± 0.3, sinus rhythm and 27.7 ± 6.1% left ventricular ejection fraction were measured by surface ECG and transesophageal bipolar left atrial and left ventricular ECG before implantation of CRT devices. Electrical right cardiac atrioventricular delay was measured between onset of P wave and onset of QRS complex in the surface ECG, left cardiac atrioventricular delay between onset of left atrial signal and onset of left ventricular signal in the transesophageal ECG and left atrial delay between onset and offset of left atrial signal in the transesophageal ECG.
Results: Electrical atrioventricular and left atrial delay were 196.9 ± 38.7 ms right and 194.5 ± 44.9 ms left cardiac atrioventricular delay, and 47.7 ± 13.9 ms left atrial delay. There were positive correlation between right and left cardiac atrioventricular delay (r = 0.803 P < 0.001) and negative correlation between left atrial delay and left ventricular ejection fraction (r = −0.694 P = 0.026) with 67% CRT responder.
Conclusions: Transesophageal electrical left cardiac atrioventricular delay and left atrial delay may be useful preoperative atrial desynchronization parameters to improve CRT optimization.
Social robots are robots interacting with humans not only in collaborative settings, but also in personal settings like domestic services and healthcare. Some social robots simulate feelings (companions) while others just help lifting (assistants). However, they often incite both fascination and fear: what abilities should social robots have and what should remain exclusive to humans? We provide a historical background on the development of robots and related machines (1), discuss examples of social robots (2) and present an expert study on their desired future abilities and applications (3) conducted within the Forum of the European Active and Assisted Living Programme (AAL). The findings indicate that most technologies required for the social robots' emotion sensing are considered ready. For care robots, the experts approve health-related tasks like drawing blood while they prefer humans to do nursing tasks like washing. On a larger societal scale, the acceptance of social robots increases highly significantly with familiarity, making health robots and even military drones more acceptable than sex robots or child companion robots for childless couples. Accordingly, the acceptance of social robots seems to decrease with the level of face-to-face emotions involved.
Brand identification has the potential of shaping individuals' attitudes, performance and commitment within learning and work contexts. We explore these effects, by incorporating elements of branded identification within gamified environments. We report a study with 44 employees, in which task performance and emotional outcomes are assessed in a real-world assembly scenario - namely, while performing a soldering task. Our results indicate that brand identification has a direct impact on individuals' attitude towards the task at hand: while instigating positive emotions, aversion and reactance also arise.
We present the design of a system combining augmented reality (AR) and gamification to support elderly persons’ rehabilitation activities. The system is attached to the waist; it collects detailed movement data and at the same time augments the user’s path by projections. The projected AR-elements can provide location-based information or incite movement games. The collected data can be observed by therapists. Based on this data, the challenge level can be more frequently adapted, keeping up the patient’s motivation. The exercises can involve cognitive elements (for mild cognitive impairments), physiological elements (rehabilitation), or both. The overall vision is an individualized and gamified therapy. Thus, the system also offers application scenarios beyond rehabilitation in sports. In accordance with the methodology of design thinking, we present a first specification and a design vision based on inputs from business experts, gerontologists, physiologists, psychologists, game designers, cognitive scientists and computer scientists.
Hot work tools are subjected to complex thermal and mechanical loads during hot forming processes. Locally, the stresses can exceed the material’s yield strength in highly loaded areas as e.g. in small radii in die cavities. To sustain the high loads, the hot forming tools are typically made of martensitic hot work steels. While temperatures for annealing of the tool steels usually lie in the range between 400 and 600 °C, the steels may experience even higher temperatures during hot forming, resulting in softening of the material due to coarsening of strengthening particles. In this paper, a temperature dependent cyclic plasticity model for the martensitic hot work tool steel 1.2367 (X38CrMoV5-3) is presented that includes softening due to particle coarsening and that can be applied in finite-element calculations to assess the effect of softening on the thermomechanical fatigue life of hot work tools. To this end, a kinetic model for the evolution of the mean size of secondary carbides based on Ostwald ripening is coupled with a cyclic plasticity model with kinematic hardening. Mechanism-based relations are developed to describe the dependency of the mechanical properties on carbide size and temperature. The material properties of the mechanical and kinetic model are determined on the basis of tempering hardness curves as well as monotonic and cyclic tests.
In this paper we report on the commercial background as well as resulting high-level architecture and design of a cloud-based system for cryptographic software protection and licensing. This is based on the experiences and insights gained in the context of a real-world commercial R&D project at Wibu-Systems AG, a company that specialises in software encryption and licensing solutions.
An energy oriented design concept was developed within the research project PHOTOPUR which has the development of a PV powered water cleaning system as main focus. During a wine season Plant Protection Products (PPP) are several times sprayed on plants to protect them of undesired insects and herbs or avoid hazardous fungus
types. A work package of the project partner INES in Offenburg led to a design introducing energy profiling already in the early beginning of a product design. The concept is based on three pillars respecting first the
requirements of the core process making up filtering and cleaning and secondary aspects which run, support, maintain and monitor the system to secure availability and product reliability.
The presented paper shows that the results of the design tools guided the developers to assemble a functional model of the water decontamination unit which was manually tested with its concatenated steps of the water cleaning process.
In this paper, we present a frame synchronization method which consists of the non-orthogonal superposition of a synchronization sequence and the data. We derive the optimum detection criterion and compare it to the classical sequential concatenation of synchronization and data sequences. Computer simulations confirm the benefits of the non-orthogonal allocation for the case of short frames, which makes this technique particularly suited for the increasingly important regime of low latency and ultra- reliable communication.