Refine
Year of publication
Institute
- Fachbereich Energietechnik (57)
- Fachbereich Elektrotechnik und Informationstechnik (56)
- Fachbereich Luft- und Raumfahrttechnik (21)
- Solar-Institut Jülich (17)
- Fachbereich Medizintechnik und Technomathematik (13)
- ECSM European Center for Sustainable Mobility (10)
- Fachbereich Maschinenbau und Mechatronik (8)
- Fachbereich Wirtschaftswissenschaften (5)
- INB - Institut für Nano- und Biotechnologien (4)
- IfB - Institut für Bioengineering (4)
Has Fulltext
- no (185) (remove)
Document Type
- Article (94)
- Conference Proceeding (38)
- Book (31)
- Part of a Book (17)
- Conference: Meeting Abstract (2)
- Bachelor Thesis (1)
- Patent (1)
- Report (1)
Keywords
- Literaturanalyse (3)
- Digitale Transformation (2)
- Digitalisierung (2)
- Forschungsprozess (2)
- Robotic Process Automation (2)
- Text Analytics (2)
- cyber physical production system (2)
- digital shadow (2)
- Antarctica (1)
- Arbeit 4.0 (1)
- Chatbots (1)
- Customer Experience Management (1)
- Customer Journeys (1)
- E-Learning (1)
- EBSCO Discovery Service (1)
- Emotional (1)
- Enterprise Architecture (1)
- Forschung (1)
- Forschungsinformationssystem (1)
- Fotografie (1)
- Fühlen (1)
- Geschäftsmodelle (1)
- IBM Watson Explorer (1)
- Image Database (1)
- Image Forensics (1)
- Informationsgetriebene Geschäftsmodelle (1)
- Intelligentes Parken (1)
- Internet der Dinge (1)
- Jupiter (1)
- Kommerzielle Interaktionen (1)
- Literatur-analyse-prozess (1)
- Literaturdaten (1)
- Literature review (1)
- Literaturrecherche (1)
- Mobile Phones (1)
- Monetarisierung (1)
- Planetary exploration (1)
- Portrait (1)
- Prozessagilität (1)
- Prozessautomatisierung (1)
- Qualitative Wertschöpfungsanalyse (1)
- Research process (1)
- Serviceintegration (1)
- Software Robots (1)
- Text Analytics (1)
- Text Mining (1)
- Text analytics (1)
- Text mining (1)
- Unternehmensarchitekturen (1)
- Unternehmensarchitekturen Internet der Dinge (1)
- Weiblicher Blick (1)
- Wertschöpfungskettenanalyse (1)
- Wissenstransfer (1)
- anaesthetic complications (1)
- business process automation (1)
- commercial offthe- shelf solutions (1)
- cyber-physical production system (1)
- dental trauma (1)
- difficult airway (1)
- digital twin (1)
- double-lumen tube intubation (1)
- human digital shadow (1)
- human factors (1)
- human-machine interface (1)
- ice moons (1)
- internet of production (1)
- robotic process automation (1)
- software evaluation (1)
- software selection (1)
- underwater vehicle (1)
- user & usage (1)
- videolaryngoscopy (1)
Purpose
To design and evaluate a four-channel cardiac transceiver coil array for functional cardiac imaging at 7T.
Materials and Methods
A four-element cardiac transceiver surface coil array was developed with two rectangular loops mounted on an anterior former and two rectangular loops on a posterior former. specific absorption rate (SAR) simulations were performed and a Burn:x-wiley:10531807:media:JMRI22451:tex2gif-stack-1 calibration method was applied prior to obtain 2D FLASH CINE (mSENSE, R = 2) images from nine healthy volunteers with a spatial resolution of up to 1 × 1 × 2.5 mm3.
Results
Tuning and matching was found to be better than 10 dB for all subjects. The decoupling (S21) was measured to be >18 dB between neighboring loops, >20 dB for opposite loops, and >30 dB for other loop combinations. SAR values were well within the limits provided by the IEC. Imaging provided clinically acceptable signal homogeneity with an excellent blood-myocardium contrast applying the Burn:x-wiley:10531807:media:JMRI22451:tex2gif-stack-2 calibration approach.
Conclusion
A four-channel cardiac transceiver coil array for 7T was built, allowing for cardiac imaging with clinically acceptable signal homogeneity and an excellent blood-myocardium contrast. Minor anatomic structures, such as pericardium, mitral, and tricuspid valves and their apparatus, as well as trabeculae, were accurately delineated.
Research on robotic lunar exploration has seen a broad revival, especially since the Google Lunar X-Prize increasingly brought private endeavors into play. This development is supported by national agencies with the aim of enabling long-term lunar infrastructure for in-situ operations and the establishment of a moon village. One challenge for effective exploration missions is developing a compact and lightweight robotic rover to reduce launch costs and open the possibility for secondary payload options. Existing micro rovers for exploration missions are clearly limited by their design for one day of sunlight and their low level of autonomy. For expanding the potential mission applications and range of use, an extension of lifetime could be reached by surviving the lunar night and providing a higher level of autonomy. To address this objective, the paper presents a system design concept for a lightweight micro rover with long-term mission duration capabilities, derived from a multi-day lunar mission scenario at equatorial regions. Technical solution approaches are described, analyzed, and evaluated, with emphasis put on the harmonization of hardware selection due to a strictly limited budget in dimensions and power.
In Europe, efforts are underway to develop key technologies that can be used to explore the Moon and to exploit the resources available. This includes technologies for in-situ resource utilization (ISRU), facilitating the possibility of a future Moon Village. The Moon is the next step for humans and robots to exploit the use of available resources for longer term missions, but also for further exploration of the solar system. A challenge for effective exploration missions is to achieve a compact and lightweight robot to reduce launch costs and open up the possibility of secondary payload options. Current micro rover concepts are primarily designed to last for one day of solar illumination and show a low level of autonomy. Extending the lifetime of the system by enabling survival of the lunar night and implementing a high level of autonomy will significantly increase potential mission applications and the operational range. As a reference mission, the deployment of a micro rover in the equatorial region of the Moon is being considered. An overview of mission parameters and a detailed example mission sequence is given in this paper. The mission parameters are based on an in-depth study of current space agency roadmaps, scientific goals, and upcoming flight opportunities. Furthermore, concepts of the ongoing international micro rover developments are analyzed along with technology solutions identified for survival of lunar nights and a high system autonomy. The results provide a basis of a concise requirements set-up to allow dedicated system developments and qualification measures in the future.