Refine
Year of publication
Document Type
- Conference Proceeding (217) (remove)
Conference Type
- Konferenzartikel (195)
- Konferenz-Abstract (11)
- Konferenz-Poster (5)
- Konferenzband (5)
- Sonstiges (1)
Is part of the Bibliography
- yes (217) (remove)
Keywords
- Kühldecke (4)
- Raumklima (4)
- 3D printing (3)
- Applied computing (3)
- Biomechanik (3)
- Deep Leaning (3)
- Education (3)
- Finite-Elemente-Methode (3)
- Klimatechnik (3)
- Materialermüdung (3)
- Rissausbreitung (3)
- TRIZ (3)
- AI-Aided Innovation (2)
- Additive Manufacturing (2)
- Couplings (2)
- Current measurement (2)
- E-Learning (2)
- Eco-Innovation (2)
- Festigkeit (2)
- Geophysik (2)
- HCI (2)
- Harmonic analysis (2)
- Information systems (2)
- Künstliche Intelligenz (2)
- Machine Learning (2)
- Optimierung (2)
- Process Design (2)
- Radar (2)
- Roboter (2)
- Robotics (2)
- Substrates (2)
- Sustainabilty (2)
- Switches (2)
- Tragfähigkeit (2)
- Transceivers (2)
- UWB radars (2)
- User Experience (2)
- Voice User Experience (2)
- Wärmekonvektion (2)
- Zugbeanspruchung (2)
- catheter ablation (2)
- certificate management (2)
- cryptography (2)
- energy harvesting (2)
- imaging algorithms (2)
- medical imaging (2)
- microwave (2)
- programming (2)
- scattering measurements (2)
- standardization (2)
- 100% Renewable (1)
- 2D-TLC (1)
- 3D Printed Force Sensor (1)
- 3D displays (1)
- 3D modeling (1)
- 3D-Druck (1)
- 4D-Druck (1)
- 4D-Printing (1)
- 5G mobile communication (1)
- 5G private networks (1)
- AIN Cantilever (1)
- Abbreviate Injury Scale (1)
- Abkühlung (1)
- Abtastfrequenz (1)
- Academic Advising (1)
- Accident Analysis (1)
- Additive Fertigung (1)
- Additive Manufacture (1)
- Adressdaten (1)
- Advanced Driver Assistance System (1)
- Agent based sensor (1)
- Air Traffic Control (1)
- Aircraft (1)
- Aluminum (1)
- Analogsignal (1)
- Anti-Windup (1)
- Anwender-Software (1)
- Approximation (1)
- Artificial Intelligence (1)
- Attenuation (1)
- Auflösungsvermögen (1)
- Authentication (1)
- Authorization (1)
- Automation (1)
- BLE (1)
- Bauteilfestigkeit (1)
- Bearings (1)
- Belüftung (1)
- Benutzererlebnis (1)
- Beschichtung (1)
- Beschleunigung (1)
- Betriebsverhalten (1)
- Bike Path Analysis (1)
- Binary Executable (1)
- Biologische Methanisierung (1)
- Blechformteil (1)
- Blended Learning (1)
- Blockchain (1)
- Blockchains (1)
- Boundary conditions (1)
- Bowtie antenna (1)
- Bremsvorgang (1)
- Business Model Canvas (1)
- CNN (1)
- COVID (1)
- Cameras (1)
- Capacitive Liquid Level Sensor (1)
- Car-2-Car communication (1)
- Car-2-X communication (1)
- Chatbot (1)
- Checkout (1)
- Checkout-Prozess (1)
- Chemical Engineering (1)
- Chemical engineering (1)
- Chip-Karte (1)
- Circular polarizing filter (1)
- Cleaning (1)
- Coatings (1)
- Cobotik (1)
- Collaboration (1)
- Collaborative learning (1)
- Collision Point (1)
- Communication networks (1)
- Computer Aided Innovation (1)
- Computer-assisted instruction (1)
- Conversational user experience (1)
- Convolutional neural networks (1)
- Creativity (1)
- Cybersecurity (1)
- DC-DC-Wandler (1)
- DDS (1)
- DVB-T (1)
- Data Distribution Service (1)
- Data breech (1)
- Data communications (1)
- Data modeling (1)
- Databases (1)
- Datenanalyse (1)
- Datenaufzeichnung (1)
- Datenqualität (1)
- Datenspeicher (1)
- Dauerschwingprüfung (1)
- Debinding (1)
- Deckenkühlung (1)
- Deckschicht (1)
- Deep Learning (1)
- Deep Neural Network (1)
- Deepfake (1)
- Demand side flexibility (1)
- Design Science (1)
- Design method (1)
- Device independency (1)
- Digital Flex Twin Optimization (1)
- Digitalization (1)
- Diode-array detection (1)
- Downlink (1)
- Drehstrommotor (1)
- Druckbeanspruchung (1)
- Durchlauferhitzerprinzip (1)
- E-learning (1)
- EAP-TLS (1)
- EMG features (1)
- ETAP Simulations (1)
- Easter Package (1)
- Eco-Design (1)
- Eco-inventive Principles (1)
- Eco-inventive principles (1)
- Economics (1)
- Edge mode (1)
- Effectiveness of fraud detection (1)
- Einsamkeit (1)
- Elderly (1)
- Electromagnetic compatibility (1)
- Electronic Commerce (1)
- Electronic Shopping (1)
- Elektrolokomotive (1)
- Embedded Constantan Wire (1)
- Emotional Communication (1)
- Emotional Interaction (1)
- Empirical Research (1)
- Empirical Studies (1)
- Empirical research (1)
- Energiebilanz (1)
- Energieeffizienz (1)
- Energietechnik (1)
- Energieverbrauch (1)
- Energy Flexibility (1)
- Energy Flexibility for Companies (1)
- Energy Management (1)
- Energy Marketing of Industrial Flexibilities (1)
- Energy Storage Systems (1)
- Energy Transition (1)
- Energy systems modeling (1)
- Engineering Design (1)
- Enhanced Security (1)
- Enterprise computing (1)
- Equations (1)
- Erdwärme (1)
- Ermüdungslebensdauer (1)
- Estimation (1)
- European structural and investment funds (1)
- Extrusion (1)
- Eye Tracking (1)
- Fahrzeugantrieb (1)
- Failure analysis (1)
- Fault Classification (1)
- Feasibility study (1)
- Featherweight Go (1)
- Federal Republic of Germany (1)
- Filament (1)
- Finite element analysis (1)
- Finite-Differenz-Methode (1)
- Flugregelung (1)
- Flugzeugsteuerwerk (1)
- Flüssigkeit (1)
- Formgebung (1)
- Frameworks (1)
- Fraud detection rates (1)
- Fused Filament Fabrication (1)
- Fused Layer Modeling (1)
- Fuzzy-Logik (1)
- Fördertechnik (1)
- Gait phase detection (1)
- Gamification (1)
- Gebäudeheizung (1)
- Geothermie (1)
- Geschäftsmodell (1)
- Gesundheit (1)
- Gesundheitsgefährdung (1)
- Gewichtseinsparung (1)
- Glasfaserkabel (1)
- Glasfaseroptik (1)
- Gummi (1)
- Gyroskop (1)
- HPTLC (1)
- Handschrift (1)
- Handswritten Character Recognition (1)
- Health (1)
- Herzschrittmacher (1)
- Heuristische Evaluation, (1)
- High-Cycle Fatigue (1)
- Hot forging (1)
- Hubschrauber (1)
- Hubvorrichtung (1)
- Human computer interaction (1)
- Human-Robot Collaboration (1)
- Human-centered computing (1)
- Humanoid robot (1)
- Humanoid robots programming (1)
- Hybrid system (1)
- Höhensensor (1)
- IEC/IEEE 60802 security (1)
- IEEE802.11p/WAVE (1)
- IIoT (1)
- Image restoration (1)
- In-flight entertainment (1)
- Inclined surface (1)
- Industrial Blockchain (1)
- Inertial (1)
- Inertial measurement unit (1)
- Injection Moulding (1)
- Integriertes Lernen (1)
- Interferometrie (1)
- Internet Overlay networks (1)
- Inventive Design (1)
- Inverters (1)
- IoT Security (1)
- IoT security (1)
- Irregularities (1)
- Isolation (1)
- Jones calculus (1)
- KI-Labor Südbaden (1)
- Kennlinie (1)
- Klimaanlage (1)
- Knowledge sharing (1)
- Knowledge-based innovation (1)
- Kostensenkung (1)
- Kraftmessung (1)
- Kundendaten (1)
- Kupplung (1)
- Kühlluft (1)
- Kühlsystem (1)
- LXP (1)
- Language acquisition (1)
- Large Grid-Connected PV Systems (1)
- Laserabtasten (1)
- Legionellenproblematik (1)
- Leistungsbewertung (1)
- Leistungsdichte (1)
- Lichtdispersion (1)
- Limiting (1)
- Lithium compounds (1)
- Lithium niobate (1)
- Load Flow Analysis (1)
- Logic gates (1)
- Lokalisierung (1)
- Low-Cycle Fatigue (1)
- Luftkühlung (1)
- Lüftung (1)
- Lüftungsanlage (1)
- MEMS (1)
- Machine learning (1)
- Magnetic sensors (1)
- Magnetismus (1)
- Manufacturing (1)
- Manufacturing automation (1)
- Manufacturing industries (1)
- Martensitic die steel (1)
- Maschinenbauindustrie (1)
- Material Extrusion (1)
- Material Properties (1)
- Mathematical model (1)
- Mathematisches Modell (1)
- Media Object (1)
- Media Stream (1)
- Medizintechnik (1)
- Metallization (1)
- Meters (1)
- Mobile device (1)
- Mobile devices (1)
- Modellhubschrauber (1)
- Modellsimulation (1)
- Monitoring (1)
- Monocular Depth Estimation (1)
- Monomodefaser (1)
- Montagevorrichtung (1)
- Monte-Carlo method (1)
- Motivation (1)
- Multimedia information systems (1)
- Myocontrol (1)
- NB-IoT (1)
- NETCONF security (1)
- Nachtsichtgerät (1)
- Nature-Inspired Innovation (1)
- Network topology (1)
- Netzintegration (1)
- Nonlinear waves (1)
- Nonlinearity (1)
- OT security (1)
- Objekterkennung (1)
- Off-Shore-Anlage (1)
- Online Magazine (1)
- Online-Shop (1)
- Ontology (1)
- Optimization (1)
- Optimization and control (1)
- Optimization with Digital Twins (1)
- Optische Zeichenerkennung (1)
- PCB-printing (1)
- PI control (1)
- PKI (1)
- PROFINET Security (1)
- PV System (1)
- Parameter estimation (1)
- Peer to peer computing (1)
- Peer to peer network (1)
- Performance (1)
- Performance evaluation (1)
- Periodic Table of AI (1)
- Permanent magnet machines (1)
- Pflanzenkohle (1)
- Photography (1)
- Physical Unclonable Functions (1)
- Physical unclonable function (1)
- Plastic Sheet (1)
- Plasticity model (1)
- Plastizität (1)
- Poisoning (1)
- Polarization (1)
- Power Loss (1)
- Predictions (1)
- Predictive Maintenance (1)
- Printing parameters (1)
- Produktentwicklung (1)
- Prosthetic control (1)
- Prozessautomation (1)
- Pufferspeicher (1)
- Pulse width modulation (1)
- Qualitätskontrolle (1)
- Quarter-wave plate (1)
- RPA (1)
- RUL (1)
- Radio frequency (1)
- Rails (1)
- Random call model (1)
- Rapid Prototype (1)
- Raumtemperatur (1)
- Rauscheigenschaft (1)
- Rauschminderung (1)
- Rechneranwendung (1)
- Recommendation (1)
- Renewable Energy Markets (1)
- Reynolds-Zahl (1)
- Risikobewertung (1)
- Robot vision systems (1)
- Robotic Process Automation (1)
- Robotik (1)
- Robustness (1)
- Rohr (1)
- Rohrbiegen (1)
- Rotors (1)
- Routing (1)
- Running (1)
- Sandwich-Konstruktion (1)
- Sandwichbauweise (1)
- Schubbeanspruchung (1)
- Security (1)
- Seilwinde (1)
- Selective Laser Sinter (1)
- Semiconductor device measurement (1)
- Sensing Element (1)
- Sensor phenomena and characterization (1)
- Separation Monitoring (1)
- Service Specification (1)
- Session Initiation Protocol (1)
- Signalabtastung (1)
- Signalumsetzung (1)
- Simulationsprogramm (1)
- Sintering (1)
- Smart Energy Metering (1)
- Smart Materials (1)
- Smart grids (1)
- Smart-UPS (1)
- Social Isolation (1)
- Social Media (1)
- Social Robots (1)
- Soft Robot (1)
- Software (1)
- Software Robot (1)
- Software algorithms (1)
- Software-Engineering (1)
- Software-Qualitätssicherung (1)
- Software-Sicherheit (1)
- Software-Testautomatisierung (1)
- Software-Tool (1)
- Softwarearchitektur (1)
- Softwareforschung (1)
- Solar Radiation (1)
- Solitary waves (1)
- Sonnenenergienutzung (1)
- Soziale Roboter (1)
- Speichertechnik (1)
- Sportmedizin (1)
- Stahlband (1)
- Stahlrohr (1)
- Stereobildverarbeitung (1)
- Streaming Service (1)
- Stromerzeugung (1)
- Stromregelung (1)
- Stromzustandsregler (1)
- Strukturanalyse (1)
- Strömungsmessung (1)
- Strömungsprofil (1)
- Strömungsvorgang (1)
- Student activities (1)
- Sulphonamides (1)
- Surface acoustic wave (1)
- Surface acoustic waves (1)
- Sustainable development (1)
- Sweaty (1)
- Synchronmaschine (1)
- Systementwurf (1)
- TLC (1)
- TLS (1)
- TSN security (1)
- Tailored-Strip (1)
- Tailored-Tube (1)
- Target Group Oriented Communication (1)
- Target Group Oriented Design (1)
- Target Vehicle (1)
- Temperature sensors (1)
- Temperaturfeld (1)
- Temperaturmessung (1)
- Temperaturverteilung (1)
- Testbed (1)
- Theory of computation (1)
- Thermische Solaranlage (1)
- Thermologger (1)
- Thermomechanische Ermüdung (1)
- Tiefziehen (1)
- Time Sensitive Networking (1)
- Time Synchronization (1)
- Time series data (1)
- TinyOS (1)
- Torque (1)
- Total Harmonic Distortion (1)
- Training (1)
- Transfer learning (1)
- Traubenzucker (1)
- Traubenzucker-Brennstoffzelle (1)
- Trinkwassererzeugung (1)
- Trust management (1)
- Umwandlungswirkungsgrad (1)
- Umwelttechnik (1)
- University students (1)
- Usability (1)
- Use Case (1)
- User generated content (1)
- User interface (1)
- User-generated content (1)
- VANETs (1)
- VRU eSafety (1)
- Verifiability (1)
- Verlassenheit (1)
- Versuchsergebnis (1)
- Vibrotactile Feedback (1)
- Virtual Reality (1)
- Virtual private networks (1)
- Virtual reality (1)
- Visual programming (1)
- Visual programming languages (1)
- Voice assistants (1)
- Voice user interfaces (1)
- Wahrscheinlichkeitsrechnung (1)
- Wanddicke (1)
- Warenkorbabbruch (1)
- Warmwasserbereiter (1)
- Web service architecture (1)
- Wedge waves (1)
- Werkstofffehler (1)
- Windgeschwindigkeit (1)
- Windkraftanlage (1)
- Windturbine (1)
- Windturm (1)
- Wirbelströmung (1)
- Wireless IoT (1)
- Wireless M-Bus (1)
- World Wide Web (1)
- Wärmepumpe (1)
- Wärmepumpen (1)
- Wärmeübertragung (1)
- Yolov5 (1)
- Zweitaktmotor (1)
- accelerometer (1)
- ad hoc networks (1)
- anisotropy (1)
- approximation (1)
- asymmetry (1)
- athletic performance (1)
- bearing (1)
- bench-marking (1)
- biochar (1)
- biocompatibility test (1)
- biodegradable (1)
- biologische Brennstoffzelle (1)
- biomaterials (1)
- building energy model (1)
- car-to-car communication (1)
- carbon elements (1)
- climate (1)
- crack growth simulation (1)
- credentials (1)
- curriculum learning (1)
- cushioning (1)
- data aggregation (1)
- data replication (1)
- deep reinforcement learning (1)
- degradation stages (1)
- detection (1)
- dictionary passing (1)
- digitale Signalverarbeitung (1)
- distributed systems (1)
- dreidimensionale Darstellung (1)
- eingebettete Datenverarbeitung (1)
- embedded systems (1)
- emulation (1)
- energy consumption (1)
- energy efficiency (1)
- eversion (1)
- gamification (1)
- glazing systems (1)
- ground penetrating radar (1)
- guided waves (1)
- heat pump (1)
- high performance (1)
- iSign (1)
- implantierbares System (1)
- industrial IoT (1)
- inertiales Navigationssystem (1)
- injury (1)
- inter-vehicle communication (1)
- intra-vehicle communication (1)
- kinetic (1)
- konstitutive Gleichung (1)
- localization (1)
- loneliness (1)
- low power wireless (1)
- machine learning (1)
- magnetoactive smart materials (1)
- magnetresponsive Werkstoffe (1)
- masked Stereolithography (1)
- mechanische Haftung (1)
- mehrachsige Spannung (1)
- message complexity (1)
- micronization (1)
- middleware (1)
- midsole (1)
- mikroelektromechanisches System (1)
- millimeter-wave (1)
- mobile app (1)
- mobile applications (1)
- mobiler Roboter (1)
- model driven design (1)
- model-predictive control (1)
- molybdenum (1)
- mutual authentication (1)
- neuronales Netz (1)
- nonlinearity (1)
- numerische Simulation (1)
- numerisches Verfahren (1)
- orthosis (1)
- performance (1)
- performance analysis (1)
- performance evaluation (1)
- physical unclonable function (1)
- predictive maintenance (1)
- primary authentication (1)
- printed electronics (1)
- programming languages (1)
- railways (1)
- random call model (1)
- real time (1)
- resource efficiency (1)
- road and track running (1)
- robot (1)
- running shoe (1)
- running shoes (1)
- secondary surveillance radar (1)
- secure communication (1)
- semantics (1)
- sensor network (1)
- shoe (1)
- skin cancer (1)
- skin cancer detection (1)
- smart materials (1)
- smart metering (1)
- software defined radio (1)
- solar module (1)
- soliton (1)
- subsystem design (1)
- system authenticity (1)
- temperature sensor (1)
- thermodynamischer Wirkungsgrad (1)
- thinned ASIC in foil (1)
- three-dimensional kinematic (1)
- transmit beamforming (1)
- vehicular networks (1)
- vibration harvester (1)
- virtual reality (1)
- wedge wave (1)
- wireless access networks (1)
- wireless comunication (1)
- wireless sensor (1)
- wireless sensor networks (1)
- wireless vehicular network (1)
- Ältere (1)
Institute
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (56)
- Fakultät Elektrotechnik, Medizintechnik und Informatik (EMI) (ab 04/2019) (55)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (52)
- Fakultät Wirtschaft (W) (46)
- ivESK - Institut für verlässliche Embedded Systems und Kommunikationselektronik (21)
- INES - Institut für nachhaltige Energiesysteme (12)
- Fakultät Medien (M) (ab 22.04.2021) (10)
- IMLA - Institute for Machine Learning and Analytics (10)
- IBMS - Institute for Advanced Biomechanics and Motion Studies (ab 16.11.2022) (7)
- CRT - Campus Research & Transfer (5)
Open Access
- Closed (217) (remove)
In anisotropic media, the existence of leaky surface acoustic waves is a well-known phenomenon. Very recently, their analogs at the apex of an elastic silicon wedge have been found in experiments using laser-ultrasonics. In addition to a wedge-wave (WW) pulse with low speed, a pseudo-wedge wave (p-WW) pulse was found with a velocity higher than the velocity of shear bulk waves, propagating in the same direction. With a probe-beam-deflection technique, the propagation of the WW pulses was monitored on one of the faces of the wedge at variable distance from the apex. In this way, their depth structure and the leakage of the p-WW could be visualized directly. Calculations were carried out using a method based on a representation of the displacement field in Laguerre functions. This method has been validated by calculating the surface density of states in anisotropic media and comparing the results with those obtained from the surface Green's tensor. The approach has then been extended to the continuum of acoustic modes in infinite wedges with fixed wave-vector along the apex. These calculations confirmed the measured speeds of the WW and p-WW pulses.
Anisotropy has been found to play an important role for the existence of edge-localized acoustic modes as well as for nonlinear effects in rectangular edges. For a certain propagation geometry in silicon, the effective second-order nonlinearity for wedge waves was determined numerically from second-order and third-order elastic moduli and compared with the nonlinearity for Rayleigh waves propagating in the direction of the apex on one of the two surfaces forming the edge. In the presence of weak dispersion resulting from modifications of the wedge tip or coating of the adjacent surfaces, solitary pulses are predicted to exist and their shape was calculated.
Previous studies of the hyphenation of gas chromatographic separation and spectrophotometric detection in the ultraviolet wavelength range between 168 and 330 nm showed a high potential for applications where the analysis of complex samples is required. Within this paper the development of a state-of-the-art detection system for compounds in the vapour phase is described, offering an improved behaviour compared to previous systems: Dependent on the requirements of established detection systems hyphenated with gas chromatography, the main components of the system have to be designed for optimum performance and reliability of the spectrophotometric detector: A deuterium lamp as a broadband light source has been selected for improved stability in the measurements. A new-type absorption cell based on fiber-optics has been developed considering the dynamic necessary to compete with existing techniques. In addition, the influence of the volume of the cell on the chromatogram needs to be analyzed. Tests for determining the performance of the absorption cell in terms of chemical and thermal influences have been carried out. A new spectrophotometer with adequate spectral resolution in the wavelength range, offering improved stability and dynamic for an efficient use in this application was developed. Furthermore, the influence of each component on the performance, reliability and stability of the sensor system will be discussed. An overview and outlook over the potential applications in the environmental, scientific and medical field will be given.
In thin-layer chromatography, fiber-bundle arrays have been introduced for spectral absorption measurements in the UV-region. Using all-silica fiber bundles, the exciting light will be detected after re-emission on the plate with a fiberoptic spectrometer. In addition, fluorescence light can be detected which will be masked by the re-emitted light. Therefore, it is helpful to separate the absorption and fluorescence on the TLC-plate. A modified three-array assembly has been developed: using one array for detection, the two others are used for excitation with broadband band deuterium-light and with UV-LEDs adjusted to the substances under test. As an example, the quantification of glucosamine in nutritional supplements or spinach leaf extract will be described. Using simply heating of the amino-plate for derivation, the reaction product of Glucosamine can be detected sensitively either by light absorption or by fluorescence, using the new fiber-optic assembly. In addition, the properties of the new 3-row fiber-optic array and the commercially available UV-LEDs will be shown, in the interesting wavelength region for excitation of fluorescence, from 260 nm to 360 nm. The squint angle having an influence on coupling efficiency and spatial resolution will be measured with the inverse farfield method. Some properties of UV-LEDs for analytical applications will be described and discussed, too.
Most E-Learning projects tend to separate learning activities from everyday work. This paper presents an approach where closer integration between learning and work is achieved by integrating multimedia services into manufacturing processes. The goal of E-Learning services integration in manufacturing is, through the development of new multimedia solutions, to accelerate and enhance the ability of manufacturing industry to capitalise on the emergence of a powerful global information infrastructure. In this paper we suggest to combine the areas of media streaming services and manufacturing processes, by providing electronic learning offerings as collections of media streaming services. The key components of our approach are 1) an xml based streaming service specification language, 2) automated configuration of distributed E-Learning streaming applications, 3) web services for searching, registration, and creation of E-Learning streaming services.
Integrating voice / video communication into business processes can accelerate resolution time, reduce mistakes, and establish a full audit-trail of the interactions. Some VoIP service providers offer website based or plugin based solutions, which are, however, difficult to integrate with other applications. A promising approach to overcome these disadvantages is the development of appropriate Web Services to allow applications interacting with a VoIP system. We propose a generic framework for VoIP applications consisting of an XML-based service specification language and a set of reusable Web Service components. Service providers using the proposed service-oriented architecture can offer to their customers a protocol-neutral Web Service interface, thus enabling the deployment of a general and integrated VoIP solution.
In this paper we suggest to combine the areas of media streaming services, mobile devices, and manufacturing processes to support monitoring, controlling and supervising production processes in order to achieve high levels of efficiency and environmentally friendly production. It contains a comprehensive and detailed explanation of the proposed E-Learning streaming framework, especially the adaption of streaming services to mobile environments. The key components of our approach are 1) an XML-based streaming service specification language, 2) adaption of multimedia E-Learning services to mobile environments, and 3) a media delivery platform for searching, registration, and creation of streaming services for mobile devices.
The central purpose of this paper is to present a novel framework supporting the specification and the implementation of media streaming services using XML and Java Media Framework (JMF). It provides an integrated service development environment comprising of a streaming service model, a service specification language and several implementation and retrieval tools. Our approach is based on a clear separation of a streaming service specification, and its implementation by a distributed JMF application and can be used for different streaming paradigms, e.g. push and pull services.
This paper presents an approach where closer integration between learning and work is achieved by integrating multimedia services into manufacturing processes. The goal of E-Learning services integration in manufacturing processes is, through the development of new multimedia services, to accelerate and enhance the ability of manufacturing industry to capitalise on the emergence of a powerful global information infrastructure. In this paper we suggest to combine the areas of media streaming services and manufacturing processes, by providing electronic learning offerings as collections of media streaming services. The key components of our approach are 1) an xml based streaming service specification language, 2) automated configuration of distributed E-Learning streaming applications, 3) Web Services for searching, registration, and creation of E-Learning streaming services.
We propose a new streaming media service development environment comprising of a streaming media service model, a XML based service specification language and several implementation and configuration management tools. In our project, the described approach is used for integration of streaming based eLearning services in manufacturing processes of a subcontractor to the automotive industry. The key components of our approach are 1) an xml based streaming service specification language, 2) a set of web services for searching, registration, and creation of streaming services, 3) caching and replication policies based on timing information derived from the service specifications.
The goal of eLearning services integration in manufacturing is, through the development of new multimedia solutions, to accelerate and enhance the ability of the manufacturing industry to capitalise on the emergence of a powerful global information infrastructure. The key components of our approach are: (1) an XML based streaming service specification language; (2) automatic configuration of distributed eLearning streaming service implementations; (3) a set of Web services for searching, registration, and creation of streaming services; (4) caching and replication policies based on timing information derived from the service specifications. We also introduce a new concept for cache management during runtime, e.g., content is distributed to cache servers located at the edge of a network close to the client.
The central purpose of this paper is to present a novel framework supporting the specification, the implementation and retrieval of media streaming services. It provides an integrated service development environment comprising of a streaming service model, a service specification language and several implementation and retrieval tools. Our approach is based on a clear separation of a streaming service specification, and its implementation by a distributed application and can be used for different streaming paradigms, e.g. push and pull services.
This paper treats the Brillouin backscattering in a single mode optical fiber and its implications on the Brillouin Ring Laser Gyroscope (BRLG). The BRLG consists of a fiber ring cavity in which stimulated Brillouin scattering is induced and provides two resonant counterpropagating backscattered waves. If this cavity is rotating around its axis, the backscattered waves get different resonant frequencies because of the Sagnac effect. The frequency difference is proportional to the rotation rate (Omega) by inducing a frequency offset between the counterpropagating waves. Some reported Brillouin spectra exhibit several peaks, which means that one pump wave provides at least two backscattered waves with distinguishable frequencies. In order to understand this multi-backscattering and to take advantage of it for the BRLG, we present results of a simulation of the Brillouin backscattering in a single mode optical fiber.
The prototype of an optical gyro encoder (OGE) has been successfully tested on the NTT telescope in September '93. The OGE consists of a ring laser gyro and a fiber optic gyro with their input axis parallel. The gyro outptu signals are compensated for earth rotation and misalignment and are subsequently integrated to get the angles. An adaptive digital control loop locks the fiber optic gyro to the laser gyro data. Thus the combined output has the precision of the laser gyro and the low noise of the fiber optic gyro. Specifically, the bias stability is better than 2 X 10-3 deg/h, the scale factor accuracy better than 1 ppm, the random walk coefficient better than 5 X 10-4 deg/(root)h and the resolution better than 3 X 10-4 arcsec. The OGE has been mounted in the altitude and in the azimuthy axis of the telescope. The data were compared with the telescope disk encoder data. The test data show that the pointing accuracy is about 1 arcsec and the tracking accuracy 0.1 arcsec over a time of 30 seconds. This accuracy is sufficient for the very large telescope, for instance.
An investigation is underway regarding the usefulness of altazimuth-mounting telescopes' incorporation of laser gyros for pointing and fiber gyros with extremely small random-walk coefficient for telescope inertial stabilization during tracking. A star tracker is expected to help stabilize long-term gyro bias. Gyro and telescope specifications have been derived by means of computer simulations and systems analyses.
Learning programming fundamentals is considered as one of the most challenging and complex learning activities. Some authors have proposed visual programming language (VPL) approaches to address part of the inherent complexity [1]. A visual programming language lets users develop programs by combining program elements, like loops graphically rather than by specifying them textually. Visual expressions, spatial arrangements of text and graphic symbols are used either as syntax elements or secondary notation. VPLs are normally used for educational multimedia, video games, system development, and data warehousing/business analytics purposes. For example, Scratch, a platform of Massachusetts Institute of Technology, is designed for kids and after school programs.
Design of mobile software applications is considered as one of the most challenging application domains due to the build in sensors as part of a mobile device, like GPS, camera or Near Field Communication (NFC). Sensors enable creation of context-aware mobile applications in which applications can discover and take advantage of contextual information, such as user location, nearby people and objects, and the current user activity. As a consequence, context-aware mobile applications can sense clues about the situational environment making mobile devices more intelligent, adaptive, and personalized. Such context aware mobile applications seem to be motivating and attractive case studies, especially for programming beginners (“my own first app”).
In this work, we introduce a use-case centered approach as well as clear separation of user interface design and sensor-based program development. We provide an in-depth discussion of a new VPL based teaching method, a step by step development process to enable programming beginners the creation of context aware mobile applications. Finally, we argue that addressing challenges for programming beginners by our teaching approach could make programming teaching more motivating, with an additional impact on the final software quality and scalability.
The key contributions of our study are the following:
- An overview of existing attempts to use VPL approaches for mobile applications
- A use case centered teaching approach based on a clear separation of user interface design and sensor-based program development
- A teaching case study enabling beginners a step by step creation of context-aware mobile applications based on the MIT App Inventor (a platform of Massachusetts Institute of Technology)
- Open research challenges and perspectives for further development of our teaching approach
References:
[1] Idrees, M., Aslam, F. (2022). A Comprehensive Survey and Analysis of Diverse Visual Programming Languages, VFAST Transactions on Software Engineering, 2022, Volume 10, Number 2, pp 47-60.