TY  - JOUR
A1  - Schwarz, Alexander
A1  - Gebhardt, Andreas
A1  - Schleser, Markus
A1  - Popoola, Patricia
T1  - New Welding Joint Geometries Manufactured by Powder Bed Fusion from 316L
JF  - Materials Performance and Characterization 8
Y1  - 2019
U6  - https://doi.org/10.1520/MPC20180096
SN  - 2379-1365
IS  - in press
ER  - 
TY  - JOUR
A1  - Thiel, Alexander
A1  - Tippkötter, Nils
A1  - Suck, Kirstin
A1  - Sohling, Ulrich
A1  - Ruf, Friedrich
A1  - Ulber, Roland
T1  - New zeolite adsorbents for downstream processing of polyphenols from renewable resources
JF  - Engineering in Life Sciences
N2  - Commercial materials with polyvinylpolypyrrolidone and polymeric amberlites (XAD7HP, XAD16) are commonly used for the adsorptive downstream processing of polyphenols from renewable resources. In this study, beta-zeolite-based adsorbent systems were examined, and their properties were compared to organic resins. Batch adsorption experiments were conducted with synthetic solutions of major polyphenols. Adsorption isotherms and desorption characteristics of individual adsorbent were determined based on these results. Maximum adsorption capacities were calculated using the Langmuir model. For example, the zeolites had capacities up to 203.2 mg/g for ferulic acid. To extend these results to a complex system, additional experiments were performed on rapeseed meal and wheat seed extracts as representative renewable resources. HPLC analysis showed that with 7.5% w/v, which is regarded as the optimum amount of zeolites, zeolites A and B could bind 100% of the major polyphenols as well as release polyphenols at high yields. Additionally, regeneration experiments were performed with isopropyl alcohol at 99°C to evaluate how zeolites regenerate under mild conditions. The results showed only a negligible loss of adsorption capacity and no loss of desorption capacity. In summary, it was concluded that beta-zeolites were promising adsorbents for developing new processes to isolate polyphenols from renewable resources.
Y1  - 2013
U6  - https://doi.org/10.1002/elsc.201200188
VL  - 13
IS  - 3
SP  - 239
EP  - 246
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Wilke, Thomas
T1  - Newly found plans for the chapel of the Holy Shroud
JF  - Studi Piemontesi
Y1  - 2017
SN  - 0392-7261
VL  - XLVI
IS  - 1
SP  - 75
EP  - 85
ER  - 
TY  - JOUR
A1  - Fredebeul-Krein, Markus
A1  - Steingröver, Markus
T1  - Next Generation Access Networks: Why is there a higher risk of investment and how to deal with it?
JF  - Wettbewerbsprobleme im Internet / Jörn Kruse ... (Hrsg.). Mit Beitr. von: Patrick F. E. Beschorner ...
Y1  - 2009
SN  - 978-3-8329-5024-8
N1  - Hamburger Forum Medienökonomie ; 9
SP  - 83
EP  - 102
PB  - Nomos, Ed. Fischer
CY  - Baden-Baden
ER  - 
TY  - JOUR
A1  - Krott, Daniel
A1  - Gerhards, Michael
A1  - Skorupa, Sascha
A1  - Sander, Volker
T1  - NHiLA - Bridging the Gap Between .NET and UNICORE
JF  - UNICORE Summit 2011 : proceedings, 7-8 July 2011, Torun, Poland / Mathilde Romberg ... (Eds.)
Y1  - 2011
SN  - 9783893367504
N1  - UNICORE Summit ; (2011 ; 2011.07.07-08 ; Torun) ; Schriften des Forschungszentrums Jülich IAS Series 9
SP  - 77
EP  - 86
PB  - Forschungszentrum Jülich
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Gäb, Martina
A1  - Hoffmann, Katharina
A1  - Lobe, Melanie
T1  - NIR-spectroscopic investigation of foliage of ozone-stressed Fagus sylvatica trees / Gäb, Martina ; Hoffmann, Katharina ; Lobe, Melanie ; Metzger, Rut ; Ooyen, Sven van ; Elbers, Gereon ; Köllner, Barbara
JF  - Journal of Forest Research. 11 (2006), H. 2
Y1  - 2006
SN  - 1341-6979
SP  - 69
EP  - 75
ER  - 
TY  - JOUR
A1  - Tippkötter, Nils
A1  - Roikaew, W.
A1  - Ulber, Roland
T1  - Nitrate removal from whey concentrate with biotechnological regeneration of the waste water
JF  - European dairy magazine : EDM
Y1  - 2008
SN  - 0936-6318
IS  - 1
SP  - 30
EP  - 32
ER  - 
TY  - JOUR
A1  - Braband, Henrik
A1  - Paulßen, Elisabeth
A1  - Abram, Ulrich
T1  - Nitridorhenium(V) Complexes with 1,3-Dialkyl-4,5-dimethylimidazole-2-ylidenes
JF  - Zeitschrift für anorganische und allgemeine Chemie : ZAAC = Journal of inorganic and general chemistry
Y1  - 2006
U6  - https://doi.org/10.1002/zaac.200600002
SN  - 1521-3749
VL  - 632
IS  - 6
SP  - 1051
EP  - 1056
ER  - 
TY  - JOUR
A1  - Hüning, Felix
A1  - Leineweber, A.
A1  - Jacobs, H.
A1  - Lueken, H.
T1  - Nitrogen Ordering and ferromagnetic properties of -Fe3N1+x (0.10  x  0.39) and -Fe3(N0.80C0.20)1.38 / Leineweber, A. ; Jacobs, H. ; Hüning, F. ; Lueken, H. ; Kockelmann, W.
JF  - Journal of Alloys and Compounds. 316 (2001), H. 1-2
Y1  - 2001
SN  - 1873-4669
SP  - 21
EP  - 38
PB  - -
ER  - 
TY  - JOUR
A1  - Baumann, Marcus
A1  - Semeneh, M.
A1  - Dehairs, F.
A1  - Elskens, M.
T1  - Nitrogen uptake regime and phytoplankton community structure in the Southern Ocean / Semeneh, M. ; Dehairs, F. ; Elskens, M. ; Baumann, M.E.M. ; Kopczynska, E.E. ; Lancelot, C. ; Goeyens, L.
JF  - Journal of Marine Systems. 17 (1998), H. 1-4
Y1  - 1998
SN  - 0924-7963
SP  - 159
EP  - 177
ER  -