2022/2023
Refine
Document Type
- Article (43)
- Lecture (31)
- Conference Proceeding (24)
- Report (2)
- Doctoral Thesis (1)
Keywords
- DC/DC converter (9)
- astrophysics (9)
- ChatGPT (5)
- simulation (5)
- modeling (4)
- Secure Services (3)
- eHealth & Mobility (3)
- Buck converter (2)
- Didaktik (2)
- FPGA (2)
- UVF Imaging (2)
- Ultraviolet Fluorescence (2)
- Virtual Reality (2)
- active snubber (2)
- aging tests (2)
- convection (2)
- eHealth (2)
- education (2)
- extracellular matrix (2)
- fibrin (2)
- methane (2)
- methane emission (2)
- modified boost converter (2)
- recuperation (2)
- stars: evolution (2)
- stars: interiors (2)
- stray inductance (2)
- tissue engineering (2)
- turbulence (2)
- AC-Switch (1)
- Alterungstest (1)
- Artifical Intelligence (1)
- Automation (1)
- BVLOS Drone Services (1)
- Barrierefreiheit (1)
- Bell-Ungleichungen (1)
- Bondi´s mass-loss formula (1)
- Boost converter (1)
- Calibration (1)
- Control Systems (1)
- Controlling (1)
- Corporate (1)
- DC-grid (1)
- DC-to-DC converter (1)
- DC/DC Converter (1)
- DC/DC converters (1)
- DC/DC-Konverter (1)
- Design Reuse (1)
- Digestibility (1)
- Digitalisierung (1)
- EMC (1)
- EPR (1)
- Education (1)
- Embedded Software (1)
- Embedded Systems Education (1)
- Energy Cells (1)
- Energy Communities (1)
- Equality (1)
- Ethernet (1)
- Experimente (1)
- Fault Injection (1)
- Gender-Stereotype (1)
- Healthcare (1)
- Heterogeneous Sensor Fusion (1)
- Hochschuldidaktik (1)
- Hochschule (1)
- Hochsetzer (1)
- IP Core (1)
- IT-Security (1)
- Increasing trees (1)
- Indoor Object Avoidance (1)
- Inklusion (1)
- Integral (1)
- Interconnect Fault (1)
- Internationalized Teaching (1)
- Interoperability (1)
- Intraocular Lenses (1)
- Kostenmanagement (1)
- LED supply (1)
- Learning management systems (1)
- Lebendauerbestimmung (1)
- Lentilactobacillus buchneri (1)
- Lernvideos (1)
- Life Science Engineering (1)
- MVZs (1)
- Mathematik (1)
- Medical Training (1)
- Mobility as a Service (1)
- Moodle (1)
- Multicamera (1)
- Multicore Microcontroller (1)
- Multispectral (1)
- Nachhaltigkeit (1)
- Native MS (1)
- Number theory (1)
- OCT (1)
- Object Recognition (1)
- Online symptom checkers (1)
- Open Data (1)
- Open Source (1)
- Phishing (1)
- Processes (1)
- Protein complex structure (1)
- Prototyp (1)
- Quadratic boost (1)
- Quantencomputer (1)
- Quanteninformation (1)
- Quantenkryptographie (1)
- Quantenphysik (1)
- Quantentechnologien (1)
- Radar Sensor (1)
- Real-Time Embedded Software (1)
- Renewable energy (1)
- Robotics Education (1)
- SPI (1)
- Schreibwerkstatt (1)
- Self-consumption (1)
- Sensor Fusion (1)
- Simulation (1)
- Spacial Planning (1)
- Start-ups (1)
- Student-Centered Learning Environments (1)
- Teaching (1)
- Technologiemanagement (1)
- Tiefsetzer (1)
- Toll-like receptor 3 (1)
- Unternehmensführung (1)
- Verschränkung (1)
- Vicia ervilia (1)
- Virtual Environment (1)
- Virtual and Remote Labs and Classrooms (1)
- Weiterbildung (1)
- X-ray (1)
- YouTube (1)
- ZCS (1)
- accelerated aging tests (1)
- aging (1)
- antioxidant (1)
- aortic valve disease (1)
- artificial immune system (1)
- artificial intelligence (1)
- automatic classification (1)
- betula platyphylla (1)
- biglycan (1)
- biomaterial (1)
- bioreactor (1)
- birch pollen allergy (1)
- blood parameters (1)
- bone marrow stromal cells (1)
- bone tissue engineering (1)
- byproduct (1)
- capacitor charging (1)
- carcass characteristics (1)
- chinese population (1)
- cinnamon essential oil (1)
- control (1)
- coronavirus disease (1)
- current control (1)
- current output (1)
- disinfection (1)
- double boost converter (1)
- dynamical horizons (1)
- eLearning (1)
- economics of science (1)
- efficiency (1)
- egg traits (1)
- endochondral (1)
- essential oil (1)
- evaluation effects (1)
- extra-curricular offerings (1)
- fatty acid profile (1)
- fault detection (1)
- feed restriction (1)
- feed-forward control (1)
- flyback (1)
- forward (1)
- full-thickness macular hole (1)
- gas production (1)
- greenhouse gas (1)
- greenhouse gas (GHG) (1)
- hypertrophy (1)
- hysteresis control (1)
- iPSCs (1)
- immune mechanism (1)
- incentives (1)
- inkludierende Sprache (1)
- inrush current (1)
- intercultural teaching (1)
- intermodale Reisen (1)
- interpretation (1)
- intramembranous (1)
- lavender (1)
- learning analytics (1)
- learning management systems (1)
- lemon seed essential oil (1)
- light emitting diode (1)
- lighting (1)
- limited duty cycle converter (1)
- loss reduction (1)
- major allergen (1)
- mesenchymal stromal cells (1)
- micro-grid (1)
- microwave (1)
- mobile Pflege (1)
- modelling (1)
- monensin sodium (1)
- multilabelled trees (1)
- muscle (1)
- node fault (1)
- offspring performance (1)
- ossification (1)
- osteogenesis (1)
- osteogenic differentiation (1)
- pectinesterase (1)
- photonics (1)
- polyolefin materials (1)
- power converter (1)
- power loss of PV modules (1)
- pulse power (1)
- pulsed power (1)
- quadratic converter (1)
- quantum mechanics (1)
- quasilocal (1)
- regeneration (1)
- research funding systems (1)
- retinal segmentation (1)
- retrofit (1)
- roasting (1)
- ruminal microorganism (1)
- ruminants (1)
- sensor node (1)
- sensory evaluation (1)
- service life estimation (1)
- silage (1)
- slaughter age (1)
- spectral measurements (1)
- spot welding (1)
- start-up (1)
- state space controller (1)
- statistical modelling (1)
- steam flaking (1)
- step-up converter (1)
- student collaboration (1)
- switching loss (1)
- teaching analytics (1)
- tensile stress (1)
- texture profile analysis (1)
- tree evolution processes (1)
- uZ‑i-Diagramm (1)
- ultraviolet UV light (1)
- university (1)
- urea (1)
- voltage transformation ratio (1)
- zero current switching ZCS (1)
- Übergewinnsteuer (1)
Electrolytic capacitors have the disadvantage of
pronounced aging. Non-electrolytic capacitors are therefore used
in applications where long-life is important. In this paper we
present a driving stage for LEDs without any capacitive
elements. The basic topology is a Buck converter with one coil,
one active, and one passive switch. Instead of the output
capacitor, series connections of one or more LEDs and an active
switch are connected. An additional diode is connected between
the output and the input to achieve a current path, when all LED-
paths are off. A nonlinear hysteresis controller is used to achieve
a robust control. A system with three switchable LED-strings is
analyzed. Design hints are given and the function is proved with
the help of LTSpice simulations. The system can be used for
lighting purposes with the possibility to change the chrominance.
The potentiality to transmit data is also treated.
Two-Stage Step-up Converter with Different Voltage Transformation Ratios depending on the Duty Cycle
(2022)
A two-stage converter with high output voltage
ratio and reduced current stress of the inductors and partly
reduced voltage stress is discussed. The function is explained
with the help of voltage and current diagrams. The voltage
transformation ratio changes between a quadratic step-up for
duty cycles lower 0.5 and a double Boost converter for duty
cycles higher than 0.5. Dimensioning hints, the control law for
feed-forward controls, the transient when the supply is turned on
is discussed and some simulations are given. A comparison to
other two-stage converters is also treated.
Technologiemanagement
(2023)
Stellhebel beim Aufbau von Corporate Start-ups. Dargestellt am Start-Up-Projekt „Hallo Sonne“
(2023)
Bucket increasing trees are multilabelled generalizations of increasing trees, where each non-leaf node carries b labels, with a fixed integer. We provide a fundamental result, giving a complete characterization of all families of bucket increasing trees that can be generated by a tree evolution process. We also provide several equivalent properties, complementing and extending earlier results for ordinary increasing trees to bucket trees. Additionally, we state second order results for the number of descendants of label j, again extending earlier results in the literature.
Dieser Beitrag soll interessierten Laien eine Hilfestellung an die Hand geben, ihre Infomaterialien barriereärmer zu gestalten. Einführend erfolgt eine kurze Darstellung der rechtlichen und gesellschaftlichen Situation rund um das Thema Behinderung. Verschiedene Ebenen von Barrieren und Lösungsansätze werden vorgestellt: Organisationale Barrieren von Bildungseinrichtungen werden ebenso wie Barrieren rund um das Bildungsberatungsgespräch adressiert. Der Schwerpunkt liegt bei auf der Gestaltung von Informationsmaterial. Neben einem theoretischen Hintergrund über Lösungsansätze werden praktische Umsetzungen für verschiedene Medien vorgestellt. Der Beitrag wird durch Beispiele guter Praxis in der Umsetzung, eine Checkliste zur Anwendung und weiterführende Ressourcen abgerundet.
Equipping rooms used for medical purposes, like e.g., intensive care units,
is an expensive and time-consuming task. In order to avoid extensive subsequent
adjustments due to inappropriate layout visualization or geometric conditions
difficult to identify in 2D plans, it is of utmost importance to provide an optimal
planning environment to future users such as physicians and nurses. In this paper
we present the concept of a fully automatized pipeline, which is designed to
visualize computer aided design (CAD) data using virtual reality (VR). The
immersive VR experience results in improvement of efficiency in the decision-
making process during the planning phase due to better spatial imagination. The
pipeline was successfully tested with CAD data from existing Intensive Care Units.
The results indicate that the pipeline can be a valuable tool in the field of spatial
planning in healthcare, due to simple usage and fast conversion of CAD data. The
next step will be the development of a plugin for CAD tools to allow for interactions
with the CAD models in Virtual Reality, which is not yet possible without manual
intervention