open_access
Refine
Document Type
- Article (75)
- Conference Proceeding (8)
- Book (2)
- Preprint (1)
Has Fulltext
- no (86) (remove)
Is part of the Bibliography
- yes (86)
Keywords
- cybersecurity (9)
- Shodan (7)
- Censys (6)
- Maltego (6)
- OSINT (6)
- Internet of Things (4)
- IoT (4)
- security (4)
- smart home (4)
- RiskIQ PassiveTotal (3)
Institute
Wenn Licht die Biege macht
(2020)
Von Ethik zu Recht : Der AI Act und seine Bedeutung für die Gestaltung von algorithmischen Systemen
(2021)
In this study we have examined the potential of excess wind use in Germany. Excess wind constitutes roughly 40% of unused capacities of installed wind power in Germany. Using LP modelling and representative annual load profiles on an hourly resolution, we investigate the impact of the price level for wind peak power supply of residential quarters with heat, cold and electricity in Germany in combination with different power ratios of wind supply and demand. As we show, an application of wind peak tariff is technically and economically feasible and allows using green leftover energy without going in competition with e.g., green fuels or green H2 production.
Single dielectric microspheres can manipulate light focusing and collection to enhance optical interaction with surfaces. To demonstrate this principle, we experimentally investigate the enhancement of the Raman signal collected by a single dielectric microsphere, with a radius much larger than the exciting laser spot size, residing on the sample surface. The absolute microsphere-assisted Raman signal from a single graphene layer measured in air is more than a factor of two higher than that obtained with a high numerical aperture objective. Results from Mie’s theory are used to benchmark numerical simulations and an analytical model to describe the isolated microsphere focusing properties. The analytical model and the numerical simulations justify the Raman signal enhancement measured in the microsphere-assisted Raman spectroscopy experiments.