Refine
Year of publication
- 2015 (301) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (70)
- Fachbereich Wirtschaftswissenschaften (42)
- IfB - Institut für Bioengineering (40)
- Fachbereich Elektrotechnik und Informationstechnik (36)
- INB - Institut für Nano- und Biotechnologien (36)
- Fachbereich Luft- und Raumfahrttechnik (32)
- Fachbereich Chemie und Biotechnologie (30)
- Fachbereich Bauingenieurwesen (27)
- Fachbereich Maschinenbau und Mechatronik (26)
- Fachbereich Energietechnik (23)
Document Type
- Article (126)
- Conference Proceeding (92)
- Part of a Book (39)
- Book (22)
- Other (7)
- Report (7)
- Doctoral Thesis (5)
- Patent (2)
- Part of a Periodical (1)
Keywords
- Attitude dynamics (1)
- Booster Station (1)
- Carsharing (1)
- Charging stations (1)
- Discrete Optimisation (1)
- Discrete Optimization (1)
- E-carsharing (1)
- E-mobility (1)
- Efficiency (1)
- Electrical vehicle (1)
The understanding that optimized components do not automatically lead to energy-efficient systems sets the attention from the single component on the entire technical system. At TU Darmstadt, a new field of research named Technical Operations Research (TOR) has its origin. It combines mathematical and technical know-how for the optimal design of technical systems. We illustrate our optimization approach in a case study for the design of a ventilation system with the ambition to minimize the energy consumption for a temporal distribution of diverse load demands. By combining scaling laws with our optimization methods we find the optimal combination of fans and show the advantage of the use of multiple fans.
The characterization of the degradation kinetics of biodegradable polymers is mandatory with regard to their proper application. In the present work, polymer-modified electrolyte–insulator–semiconductor (PMEIS) field-effect sensors have been applied for in-situ monitoring of the pH-dependent degradation kinetics of the commercially available biopolymer poly(d,l-lactic acid) (PDLLA) in buffer solutions from pH 3 to pH 13. PDLLA films of 500 nm thickness were deposited on the surface of an Al–p-Si–SiO2–Ta2O5 structure from a polymer solution by means of spin-coating method. The PMEIS sensor is, in principle, capable to detect any changes in bulk, surface and interface properties of the polymer induced by degradation processes. A faster degradation has been observed for PDLLA films exposed to alkaline solutions (pH 9, pH 11 and pH 13).