Search Results - "Oechsner, H"

Separation of volatile fatty acids from biogas plant hydrolysates by Jänisch, T., Reinhardt, S., Pohsner, U., Böringer, S., Bolduan, R., Steinbrenner, J., Oechsner, H.

“…•Membrane separation of VFA and suspended particles possible via ultrafiltration.•Most nanofiltration/reverse osmosis membranes let pass nearly only acetic…”
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Influence of different substrates on the performance of a two-stage high pressure anaerobic digestion system by Lemmer, A., Chen, Y., Lindner, J., Wonneberger, A.M., Zielonka, S., Oechsner, H., Jungbluth, T.

“…•Two-stage high-pressure digestion is a novel approach for the production of biogas.•Digestion under elevated pressure leads to decreasing pH-values in the…”
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Innovative additives for chemical desulphurisation in biogas processes: A comparative study on iron compound products by Nägele, H.J., Steinbrenner, J., Hermanns, G., Holstein, V., Haag, N.L., Oechsner, H.

“…•The removal efficiency increased to 37–51% in dosing stage one.•A higher dosing resulted in higher removal efficiency (61–77%).•FeCl2 showed the fastest…”
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Impact of genotype, harvest time and chemical composition on the methane yield of winter rye for biogas production by Hübner, M., Oechsner, H., Koch, S., Seggl, A., Hrenn, H., Schmiedchen, B., Wilde, P., Miedaner, T.

“…Rye ( Secale cereale L.) is an ideal crop for the agricultural biogas production in regions with less fertile and sandy soils. Maximum methane yield per…”
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On the influence of substrate temperature for cubic boron nitride growth by Le, Y.K, Oechsner, H

“…BN-films were deposited on Si(100) substrates with r.f. magnetron sputtering of hBN targets. The chemical and the phase composition were determined with Auger…”
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Fermentative Power-to-Gas-Konzepte: Effiziente Vektortechnologien zur Verknüpfung der Strom- und Erdgasnetze by Lemmer, A., Oechsner, H., Ullrich, T., Lecker, B.

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Analysis of electrically non-conducting sample structures with electron and mass spectroscopic methods by Oechsner, H

“…Auger electron spectroscopy (AES) is shown to become well applicable to the analysis of dielectric samples when the parameters of the exciting primary electron…”
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Detection in the ppm range and high-resolution depth profiling with the new SNMS instrument INA-X by L sch, J., Kopnarski, M., Oechsner, H., Jorzick, J.

“…The design and the specification of the newly developed INA-X instrument for the electron-gas version of a secondary neutral mass spectrometer (SNMS) are…”
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Möglichkeiten der Integration von Power-to-Gas in die Prozesskette der Biogaserzeugung by Baer, K., Moers, F., Graf, F., Oechsner, H., Lemmer, A., Ullrich, T., Lecker, B.

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Effect of substrate temperature and ion bombardment on the formation of cubic boron nitride films: A two-step deposition approach by Ye, J., Oechsner, H., Westermeyr, S.

“…The influence of substrate temperature and ion bombardment on the formation of cubic boron nitride (c-BN) films has been examined with bias-assisted magnetron…”
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On the stoichiometry condition for the formation of cubic boron nitride films by Oechsner, H., Le, Y.K.

“…The stoichiometry of boron nitride (BN) films, which are deposited with self-bias-assisted radio frequency (rf) magnetron sputtering of a hexagonal boron…”
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Conditions for the formation of cubic boron nitride films by r.f. magnetron sputtering by Ye, J, Rothhaar, U, Oechsner, H

“…Boron nitride films were prepared on Si (100) substrates by r.f. magnetron sputtering from an hBN target with pure argon as working gas. During the deposition,…”
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Phase separation in magnetron sputtered superhard BCN thin films by Ulrich, S., Ehrhardt, H., Theel, T., Schwan, J., Westermeyr, S., Scheib, M., Becker, P., Oechsner, H., Dollinger, G., Bergmaier, A.

“…The similar crystalline structure of diamond and cubic boron nitride suggests the synthesis of superhard thin films containing boron, carbon and nitrogen. BCN…”
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Characterization of sputtered titanium silicide ohmic contacts on n-type 6H-silicon carbide by Getto, R, Freytag, J, Kopnarski, M, Oechsner, H

“…Titanium silicide (TiSi X ) contacts sputter deposited onto p-type SiC-wafers carrying a 5μm thick nitrogen-doped n-type ( N D− N A=5 .10 18 cm −3) epitaxial…”
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In situ STM and AES studies on the oxidation of Cr(110) by Müller, M., Oechsner, H.

“…A chromium (110) surface was exposed to various doses of oxygen at substrate temperatures between 50 and 880°C. The resulting oxygen concentration was…”
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Characterization of sputter deposited cBN-films by low energy electron loss spectroscopy LEELS by Oechsner, H, Westermeyr, S, Ye, Jian

“…The characteristic energy losses of inelastically backscattered electrons of 0.2−2 keV measured by low energy electron loss spectroscopy (LEELS) are shown to…”
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Deposition of nanocrystalline silicon films (nc-Si:H) from a pure ECWR-SiH4 plasma by Scheib, M., Schröder, B., Oechsner, H.

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ECWR-Plasma CVD as a novel technique for phase controlled deposition of semiconductor films by Oechsner, H., Scheib, M., Goebel, H.

“…Plasma excitation by electron cyclotron wave resonance (ECWR) as a rather novel technique for direct and remote PACVD processes is briefly described from its…”
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Interdiffusion studies of Cr2O3 layers on ceramic Al2O3 substrates by ROTHHAAR, U, OECHSNER, H

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Temperature induced dissolution of Cr2O3 into polycrystalline tantalum by Rothhaar, U., Oechsner, H.

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