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1.
E-BOOK
Messung von Ressourceneffizienz mit der ESSENZ-Methode : Integrierte Methode zur ganzheitlichen Bewertung (2016)
Berlin, Heidelberg, New York, London : Springer
Keywords: Ressourceneffizienz ; Aggregation ; Natural resources
Notes: Eine belastbare Methode zu entwickeln, um den Ressourceneinsatz zu bewerten, ist das Ziel dieses Buches. Notwendig ist dies, da das starke Wirtschaftswachstum der letzten Jahrzehnte zu einer intensiven Beanspruchung natürlicher Ressourcen geführt hat. Mit ihrer steigenden Nutzung gehen auch zusätzliche Belastungen der Umwelt sowie Restriktionen der Verfügbarkeit von Ressourcen einher. Aus diesen Gründen ist ein effizienter Einsatz von Ressourcen als wichtiger Beitrag zu einer nachhaltigen Entwicklung erforderlich. Die ESSENZ-Methode (Integrierte Methode zur ganzheitlichen Berechnung/Messung von Ressourceneffizienz) wurde in einer Kooperation der Technischen Universität Berlin mit den Industriepartnern Daimler AG, Deutsches Kupferinstitut Berufsverband e. V., Evonik Industries AG, Siemens AG, ThyssenKrupp Steel Europe AG und Wissenschaftlicher Gerätebau Dr. Ing. Herbert Knauer GmbH entwickelt. Sie unterstützt die umfassende Messung und Bewertung von Ressourceneffizienz innerhalb der vier Dimensionen „Verfügbarkeit“, „Gesellschaftliche Akzeptanz“, „Umweltauswirkungen“ und „Nutzen“. Um diese vier Dimensionen wissenschaftlich abzubilden, werden 21 anwendbare Indikatoren entwickelt und vorgestellt. Die ESSENZ-Methode kann sowohl für die Analyse und Optimierung eines einzelnen Produktes als auch für den Vergleich mehrerer Produktalternativen verwendet werden. Ihre Anwendbarkeit ist für Metalle, und fossile Rohstoffe bereits erprobt.
Pages: XII, 161 S.
ISBN: 978-3-662-49263-5
2.
Paper (German National Licenses)
Use of poly(styrene)-block-poly(ethyleneoxide) as emulsifier in emulsion polymerization (1994)
Springer
Polymer bulletin 33 (1994), S. 521-528 
ISSN: 1436-2449
Source: Springer Online Journal Archives 1860-2000
Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
Notes: Summary Poly(styrene)-block-poly(ethyleneoxide), abbreviated as (PS-b-PEO) were used as emulsifiers in emulsion polymerization of styrene and methyl methacrylate. The block copolymers had a poly(styrene) block with Mn=1000 g/mol and a poly(ethyleneoxide) block with Mn=1000, 3000 or 5000 g/mol, respectively. Stable dispersions were obtained when the PEO block molecular weight was higher than 1000 g/mol. Also the amphiphilic properties of the copolymers depended on the PEO chain length. Block copolymer micelles with hydrodynamic radii between 11 and 17nm were observed. Emulsion polymerization was performed at different block copolymer concentration at 60 and 80°C. Particle size varied between 50 and 300nm and decreased with increasing copolymer concentration. The particle size was larger at higher temperature, but the size distribution was narrower. Polymerization of methyl methacrylate gave smaller particles when compared to styrene. The dispersions were very stable towards high electrolyte concentration, but flocculation occurred at elevated temperatures. Both observations indicate that the dispersions are sterically stabilized.
Type of Medium: Electronic Resource
3.
PAPER CURRENT
Energy Efficient and Reliable Wireless Sensor Networks - An Extension to IEEE 802.15.4e (2014)
Springer
Publication Date: 2014-08-10
Description: Collecting sensor data in industrial environments from up to some tenth of battery-powered sensornodes with sampling rates up to 100 Hz requires energy-aware protocols, which avoid collisionsand long listening phases. The IEEE 802.15.4 standard focuses on energy-aware wireless sensornetworks (WSNs) and the Task Group 4e has published an amendment to fulfill up to 100 sensorvalue transmissions per second per sensor node (low latency deterministic network (LLDN) mode)to satisfy demands of factory automation. To improve the reliability of the data collection in the startopology of the LLDN mode, we propose a relay strategy, which can be performed within the LLDNschedule. Furthermore, we propose an extension of the star topology to collect data from two-hopsensor nodes. The proposed retransmission mode enables power savings in the sensor node of morethan 33%, while reducing the packet loss by up to 40%. To reach this performance, an optimumspatial distribution is necessary, which is discussed in detail.
Print ISSN: 1687-1472
Electronic ISSN: 1687-1499
Topics: Electrical Engineering, Measurement and Control Technology , Computer Science
Published by Springer
4.
PAPER CURRENT
A Novel Class of Bis- and Tris-Chelate Diam(m)inebis(dicarboxylato)platinum(IV) Complexes as Potential Anticancer Prodrugs (2014)
American Chemical Society (ACS)
Publication Date: 2014-07-31
Description: Journal of Medicinal Chemistry DOI: 10.1021/jm500791c
Topics: Chemistry and Pharmacology

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