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Suche nach „[2013]“ hat 121 Publikationen gefunden
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    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTC Weißenburg

    Buch (Monographie)

    Kuznetsov, A., Dmitry Rychkov, Rychkov, A. A.

    СТАБИЛИЗАЦИЯ ЗАРЯДА ПОЛИМЕРНЫХ ЭЛЕКТРЕТОВ (Charge stabilization in polymer electrets)

    A textbook for Engineering or Physics bachelor/master students

    2013

    ISBN: 978-5-8064-1938-6

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTC Weißenburg

    Zeitschriftenartikel

    Kuznetsov, A., Dmitry Rychkov, Rychkov, A. A.

    Thermally Stimulated Electret Surface Potential Recovery in Polyethylene Films Modified in Phosphorus Trichloride Vapor

    (in Russian)

    Izvestiya RGPU: Scientific Journal, vol. 157, pp. 113-118

    2013

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTC Weißenburg

    Zeitschriftenartikel

    Gerhard, R., A. Malygin, Efimov, N., Dmitry Rychkov, Rychkov, A. A.

    Higher stabilities of positive and negative charge on tetrafluoroethylene–hexafluoropropylene copolymer (FEP) electrets treated with titanium-tetrachloride vapor

    Applied Physics A - Materials Science and Processing, vol. 112, no. 2, pp. 283-287

    2013

    DOI: 10.1007/s00339-013-7821-1

    Abstract anzeigen

    Tetrafluoroethylene–hexafluoropropylene copolymer (FEP) films were treated with titanium-tetrachloride vapor in a molecular-layer deposition process. As a result of the surface treatment, significant improvements of the thermal and temporal charge stability were observed. Charge-decay measurements revealed enhancements of the half-value temperatures and the relaxation times of positively charged FEP electrets by at least 120 °C and two orders of magnitude, respectively. Beyond previous publications on fluoropolymer electrets with surface modification, we here report enhanced charge stabilities of the FEP films charged in negative as well as in positive corona discharges. Even though the improvement for negatively charged FEP films is moderate (half-value temperature about 20 °C higher), our experiments show that the asymmetry in positive and negative charge stability that is typical for FEP electrets can be overcome by means of chemical surface treatments. The results are discussed in the context of the formation of modified surface layers with enhanced charge-trapping properties.

    TC Cham

    Patent

    Continental Automotive GmbH, G. Rösel, Frank Denk

    [DE] Bestimmen des zeitlichen Bewegungsverhaltens eines Kraftstoffinjektors basierend auf einer Auswertung des zeitlichen Verlaufs von verschiedenen elektrischen Messgrößen [EN] Determining the movement ...

    2013

    TC Cham

    Patent

    Continental Automotive GmbH, G. Rösel, Frank Denk

    Bestimmen des zeitlichen Bewegungsverhaltens eines Kraftstoffinjektors basierend auf einer Auswertung des zeitlichen Verlaufs von verschiedenen elektrischen Messgrößen

    2013

    TC Cham

    Patent

    Continental Automotive GmbH, Frank Denk

    [DE] Bestimmung des Bewegungsverhaltens eines Kraftstoffinjektors basierend auf dem zeitlichen Abstand zwischen den ersten beiden Spannungsimpulsen in einer Haltephase [EN] Determination of the movement...

    2013

    TC Cham

    Patent

    Continental Automotive GmbH, Frank Denk

    [DE] Bestimmung des Standardserien-Öffnungsverhaltens eines Kraftstoffinjektors basierend auf einem Test-Öffnungsverhalten unter dem Einfluss eines Testpulses mit konstanter Spannung [EN] Determination ...

    2013

    TC Cham

    Patent

    Continental Automotive GmbH, Frank Denk

    Method And Device For Determining A Reference Current Progression For A Fuel Injector, For Determining The Instant Of A Predetermined Opening State Of The Fuel Injector

    2013

    TC Cham

    Patent

    Continental Automotive GmbH, Frank Denk

    Ermittlung des Zeitpunkts eines vorbestimmten Öffnungszustandes eines Kraftstoffinjektors

    2013

    TC Cham

    Patent

    Continental Automotive GmbH, Frank Denk

    Determination of the point in time of a predetermined open state of a fuel injector

    2013

    GesundAngewandte Gesundheitswissenschaften

    Zeitschriftenartikel

    S. Kuphal, L. Vardimon, Melanie Kappelmann-Fenzl, G. Meister, A. Bosserhoff

    MicroRNA miR-125b controls melanoma progression by direct regulation of c-Jun protein expression

    Oncogene, vol. 32, no. 24, pp. 2984-2991

    2013

    DOI: 10.1038/onc.2012.307

    Abstract anzeigen

    A fundamental event in the development and progression of malignant melanoma is the deregulation of cancer-relevant transcription factors. We recently showed that c-Jun is a main regulator of tumor progression in melanoma and thus the most important member of the AP-1 transcription factor family for this disease. Interestingly, we revealed that c-Jun expression was regulated on the post-transcriptional level and therefore speculated that miRNAs could be involved in c-Jun regulation. We determined seed sequences for miR-125b and miR-527 in the coding region of c-Jun mRNA that hints at the direct involvement of miRNA-dependent regulation on the protein level. We found that the expression of miR-125b was significantly reduced in malignant melanoma cell lines and tissue samples compared with melanocytes, whereas miR-527 remained unchanged. In further functional experiments, treatment of melanoma cells with pre-miR-125b resulted in strong suppression of cellular proliferation and migration, supporting the role of miR-125b in melanoma. In addition, transfection of pre-miR-125b led to strong downregulation of c-Jun protein but not mRNA expression in melanoma cells. Luciferase assays using reporter plasmids containing the miR-125b seed sequence in the luciferase coding region confirmed the direct interaction with miR-125b. Furthermore, immunoprecipitation of Ago-2 revealed that c-Jun mRNA accumulated in the RNA-induced silencing complex after pre-miR-125b transfection in melanoma cells. In summary, we identified an important role for miR-125b in malignant melanoma. Moreover, we demonstrated post-transcriptional regulation of c-Jun by this miRNA and showed that c-Jun is a main mediator of the effects of miR-125b on melanoma cells.

    NachhaltigEuropan Campus Rottal-Inn

    Zeitschriftenartikel

    B. Rana, M. Mátéfi-Tempfli, M. Agrawal, A. Barman, R. Hicken, U.A.S. Al-Jarah, O. Dmytriiev, Gangmei P., L. Piraux, V. Kruglyak, Stefan Mátéfi-Tempfli, B. Mahato

    Static and dynamic magnetic properties of densely packed magnetic nanowire arrays

    Physical Review B, vol. 87, no. 17

    2013

    DOI: 10.1103/PhysRevB.87.174429

    Abstract anzeigen

    The static and dynamic magnetic properties of magnetic nanowire arrays with high packing density (>0.4) and wire diameter much greater than the exchange length have been studied by static and time-resolved magneto-optical Kerr effect measurements and micromagnetic simulations. The nanowires were formed by electrodeposition within a nanoporous template such that their symmetry axes lay normal to the plane of the substrate. A quantitative and systematic investigation has been made of the static and dynamic properties of the array, which lie between the limiting cases of a single wire and a continuous ferromagnetic thin film. In particular, the competition between anisotropies associated with the shape of the individual nanowires and that of the array as a whole has been studied. Measured and simulated hysteresis loops are largely anhysteretic with zero remanence, and the micromagnetic configuration is such that the net magnetization vanishes in directions orthogonal to the applied field. Simulations of the remanent state reveal antiferromagnetic alignment of the magnetization in adjacent nanowires and the formation of vortex flux closure structures at the ends of each nanowire. The excitation spectra obtained from experiment and micromagnetic simulations are in qualitative agreement for magnetic fields applied both parallel and perpendicular to the axes of the nanowires. For the field parallel to the nanowire axes, there is also good quantitative agreement between experiment and simulation. The resonant frequencies are initially found to decrease as the applied field is increased from remanence. This is the result of a change of mode profile within the plane of the array from nonuniform to uniform as the ground state evolves with increasing applied field. Quantitative differences between experimental and simulated spectra are observed when the field is applied perpendicular to the nanowire axes. The dependence of the magnetic excitation spectra upon the array packing density is explored, and dispersion curves for spin waves propagating within the array parallel to the nanowire axis are presented. Finally, a tunneling of end modes through the middle region of the nanowires was observed. The tunneling is more efficient for wires forming densely packed arrays, as a result of the extended penetration of the dynamic demagnetizing fields into the middle of the wires and due to the lowering of the tunneling barrier by the static demagnetizing field of the array.

    DigitalGesundEuropan Campus Rottal-Inn

    Zeitschriftenartikel

    Georgi Chaltikyan, R. Hovhannisyan, A. Aroyan, A. Avoyan, T. Saghatelyan

    Current State, Recent Advances and Perspectives of Development of Healthcare Information and Communication Technologies in Armenia: A Review Article

    International Journal of Reliable and Quality E-Healthcare, vol. 2, no. 4, pp. 48-63

    2013

    DOI: 10.4018/ijrqeh.2013100105

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTAZ Spiegelau

    Patent

    R. Foerg, Günther Ruhl, W. Lehnert, R. Berger, H.-J. Schulze, H. Gruber, A. Mauder

    Method for manufacturing a composite wafer having a graphite core, and composite wafer having a graphite core

    2013

    GesundAngewandte GesundheitswissenschaftenEuropan Campus Rottal-Inn

    Buch (Monographie)

    Irmgard Tischner

    Fat lives. A feminist psychological exploration

    Women and psychology, Abingdon, Oxon; New York, NY

    2013

    ISBN: 978-0415680936

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTAZ Spiegelau

    Zeitschriftenartikel

    T. Blomberg, Günther Ruhl, M. Lukosius, C. Wenger

    Properties of stacked SrTiO3/Al2O3 metal–insulator–metal capacitors

    Journal of Vacuum Science & Technology B, vol. 31, no. 1

    2013

    DOI: 10.1116/1.4766183

    Abstract anzeigen

    The possibilities to grow thin films of SrTiO3 and Al2O3 by atomic layer deposition for stacked metal–insulator–metal capacitors have been investigated in this work. In order to tune the functional properties of the capacitors, different processing steps have been employed to realize different combinations of the dielectric stacks. Electrical properties, extracted after the postdeposition annealing and sputter deposition of the Au top electrodes, indicated that the metal–insulator–metal (MIM) structures with additional Al2O3 layer provided better leakage currents densities, compared to the ones with single SrTiO3 based MIM capacitors, but the dielectric constant values have also decreased if additional Al2O3 film was inserted. Attempts to optimize the properties of the MIM stacks have been done by manufacturing heterostructures of Al2O3/SrTiO3/Al2O3 as well as SrTiO3/Al2O3/SrTiO3. In the first case, Al2O3 prevented the crystallization of SrTiO3 in the multilayer dielectric structure and therefore reduced the total capacitance density of the particular MIM stack, whereas the SrTiO3/Al2O3/SrTiO3 stack was found to possess superior electrical properties. Leakage current density as low as ∼10−8 A/cm2 at 2 V and the dielectric constant value of 40 have been extracted.

    NachhaltigAngewandte Naturwissenschaften und Wirtschaftsingenieurwesen

    Zeitschriftenartikel

    G. Newcombe, L. Ho, Markus Hainthaler

    Using UV Spectroscopy and Molecular Weight Determinations to Investigate the Effect of Various Water Treatment Processes on NOM Removal: Australian Case Study

    Journal of Environmental Engineering, vol. 139, no. 1

    2013

    DOI: 10.1061/(ASCE)EE.1943-7870.0000596

    Abstract anzeigen

    Natural organic material (NOM) has been the focus of many studies because of its ability to compromise water treatment processes. This case study utilized ultraviolet (UV) spectroscopy and molecular weight distributions to investigate the impact of six water treatment processes (alum coagulation, magnetic ion exchange (MIEX) resin treatment, chlorination, ozonation, powdered activated carbon (PAC) adsorption, and biological sand filtration) on the removal of NOM from an Australia water source, Myponga Reservoir. Each of these processes displayed different effects on the concentration and character of NOM. The removal of dissolved organic carbon (DOC) and UV absorbance at 254 nm (UV254) by MIEX and the biological sand filter was shown to follow first-order kinetics with rate constants ranging from 9.0×10−8  s−1 (biological sand filter) to 6.3×10−5  s−1 (MIEX treatment). UV spectroscopic investigations showed the potential to predict the formation of disinfection by-products from chlorination with strong correlations (R2 of 0.96) observed between the formation of trihalomethanes and the differential UV absorbance at 265 nm. Ozonation and biological sand filtration also appeared to target NOM absorbing at 265 nm. Molecular weight distribution analyses showed MIEX treatment to be the most effective single process in achieving high removals of a wide molecular weight range of NOM, consistent with the high removals of DOC and UV254 (up to 90% and 80% removal, respectively). The combination of alum and PAC, treatment options which exist at the majority of Australian water treatment plants, also proved effective for high NOM removal over a wide range of molecular weights, where alum effectively removed high molecular weight compounds, and PAC effectively removed low molecular weight compounds. This study has demonstrated that valuable information can be gained through simple manipulation of UV absorbance and molecular weight distribution data, which could be beneficial to water utilities in not only facilitating the selection of treatment processes when commissioning WTPs, but also optimizing existing treatment processes for effective NOM removal.

    GesundAngewandte Gesundheitswissenschaften

    Zeitschriftenartikel

    S. Knappe, Agnes Nocon, K. Beesdo-Baum, H.-U. Wittchen

    Further evidence for the differential familial aggregation of agoraphobia and panic disorder

    [Congress Abstract; 102nd Annual American Psychopathological Association Meeting on “Multigenerational Transmission of Psychopathology"; March 1-3, 2012; New York, NY, USA]

    Comprehensive Psychiatry, vol. 54, no. 1

    2013

    GesundAngewandte Gesundheitswissenschaften

    Zeitschriftenartikel

    Agnes Nocon, R. Rosner, S. Jan

    Psychotherapeutic interventions from the western world in war-traumatized children - a metaanalysis

    [Congress Abstract; 13th European Conference on Traumatic Stress: Trauma and its clinical pathways; PTSD and beyond; June 6-9, 2013, Bologna, Italy]

    European Journal of Psychotraumatology, vol. 55, no. 4

    2013