TY - JOUR A1 - Kern, Alexander A1 - Zischank, Wolfgang J. T1 - The effect of parallel wires on the longitudinal voltage drop along shielded cables JF - Conference proceedings : 21st International Conference on Lightning Protection, Berlin Congress Center (BCC) Germany, September 22 - 25, 1992 = 21. Internationale Blitzschutzkonferenz / [proceedings ed. staff: J. Pilling ...] Y1 - 1992 SN - 3-8007-1885-5 N1 - International Conference on Lightning Protection <21, 1992, Berlin> ; ICLP <21, 1992, Berlin> PB - VDE-Verl. CY - Berlin [u.a.] ER - TY - JOUR A1 - Akimbekov, Nuraly A1 - Qiao, Xiaohui A1 - Digel, Ilya A1 - Abdieva, Gulzhamal A1 - Ualieva, Perizat A1 - Zhubanova, Azhar T1 - The effect of leonardite-derived amendments on soil microbiome structure and potato yield JF - Agriculture N2 - Humic substances originating from various organic matters can ameliorate soil properties, stimulate plant growth, and improve nutrient uptake. Due to the low calorific heating value, leonardite is rather unsuitable as fuel. However, it may serve as a potential source of humic substances. This study was aimed at characterizing the leonardite-based soil amendments and examining the effect of their application on the soil microbial community, as well as on potato growth and tuber yield. A high yield (71.1%) of humic acid (LHA) from leonardite has been demonstrated. Parental leonardite (PL) and LHA were applied to soil prior to potato cultivation. The 16S rRNA sequencing of soil samples revealed distinct relationships between microbial community composition and the application of leonardite-based soil amendments. Potato tubers were planted in pots in greenhouse conditions. The tubers were harvested at the mature stage for the determination of growth and yield parameters. The results demonstrated that the LHA treatments had a significant effect on increasing potato growth (54.9%) and tuber yield (66.4%) when compared to the control. The findings highlight the importance of amending leonardite-based humic products for maintaining the biogeochemical stability of soils, for keeping their healthy microbial community structure, and for increasing the agronomic productivity of potato plants. Y1 - 2020 U6 - http://dx.doi.org/10.3390/agriculture10050147 VL - 10 IS - Art. 147 SP - 1 EP - 17 PB - MDPI CY - Basel ER - TY - JOUR A1 - Förster, Arnold A1 - Layet, J. M. A1 - Lüth, H. T1 - The effect of inhomogeneous dopant profiles on the electron energy loss spectra of Si(100) / JF - Applied Physics A: Materials Science & Processing. 47 (1988), H. 1 Y1 - 1988 SN - 0947-8396 N1 - ISSN der E-Ausg.: 1432-0630 SP - 95 EP - 97 ER - TY - JOUR A1 - Förster, Arnold A1 - Lange, J. A1 - Gerthsen, D. T1 - The effect of growth temperature on AlAs/GaAs resonant tunnelling diodes JF - Journal of Physics D: Applied Physics. 27 (1994), H. 1 Y1 - 1994 SN - 0022-3727 N1 - ISSN der E-Ausg.: 1361-6463 SP - 175 EP - 178 ER - TY - JOUR A1 - Köllensperger, P. A1 - Bragard, Michael A1 - Plum, T. A1 - De Doncker, R. W. T1 - The dual GCT : new high-power device using optimized GCT technology JF - IEEE transactions on industry applications Y1 - 2009 U6 - http://dx.doi.org/10.1109/TIA.2009.2027364 SN - 0093-9994 VL - 45 IS - 5 SP - 1754 EP - 1762 ER - TY - JOUR A1 - Heuermann, Holger A1 - Schiek, Burkhard T1 - The double-LNN Calibration technique for scattering parameter measurements of microstrip devices JF - Conference proceedings Y1 - 1995 N1 - European Microwave Conference <25, 1995, Bologna> SP - 343 EP - 347 PB - NEXUS House CY - Kent ER - TY - JOUR A1 - Ermelenko, Y. A1 - Yoshinobu, T. A1 - Mourzina, Y. A1 - Schöning, Michael Josef A1 - Furuichi, K. A1 - Levichev, S. A1 - Vlasov, Y. A1 - Iwasaki, H. T1 - The double K+/Ca2+ sensor based on laser scanned silicon transducer (LSST) for multicomponent analysis JF - Talanta. 59 (2003), H. 4 Y1 - 2003 SN - 0039-9140 SP - 785 EP - 795 ER - TY - JOUR A1 - Weber, Hans-Joachim A1 - Laco, Filip A1 - Kun, Ma A1 - Ramakrishna, S. T1 - The dose effect of human bone marrow-derived mesenchymal stem cells on epidermal development in organotypic co-culture / Laco, Filip ; Kun, Ma ; Weber, Hans Joachim ; Ramakrishna, S. ; Chan, Casey K. JF - Journal of Dermatological Science. 55 (2009), H. 3 Y1 - 2009 SN - 0923-1811 SP - 150 EP - 160 ER - TY - JOUR A1 - Schmidt, K. A1 - Forkmann, K. A1 - Sinke, C. A1 - Gratz, M. A1 - Bitz, Andreas A1 - Bingel, U. T1 - The differential effect of trigeminal vs. peripheral pain stimulation on visual processing and memory encoding is influenced by pain-related fear JF - NeuroImage N2 - Compared to peripheral pain, trigeminal pain elicits higher levels of fear, which is assumed to enhance the interruptive effects of pain on concomitant cognitive processes. In this fMRI study we examined the behavioral and neural effects of trigeminal (forehead) and peripheral (hand) pain on visual processing and memory encoding. Cerebral activity was measured in 23 healthy subjects performing a visual categorization task that was immediately followed by a surprise recognition task. During the categorization task subjects received concomitant noxious electrical stimulation on the forehead or hand. Our data show that fear ratings were significantly higher for trigeminal pain. Categorization and recognition performance did not differ between pictures that were presented with trigeminal and peripheral pain. However, object categorization in the presence of trigeminal pain was associated with stronger activity in task-relevant visual areas (lateral occipital complex, LOC), memory encoding areas (hippocampus and parahippocampus) and areas implicated in emotional processing (amygdala) compared to peripheral pain. Further, individual differences in neural activation between the trigeminal and the peripheral condition were positively related to differences in fear ratings between both conditions. Functional connectivity between amygdala and LOC was increased during trigeminal compared to peripheral painful stimulation. Fear-driven compensatory resource activation seems to be enhanced for trigeminal stimuli, presumably due to their exceptional biological relevance. Y1 - 2016 U6 - http://dx.doi.org/10.1016/j.neuroimage.2016.03.026 SN - 1053-8119 VL - 134 SP - 386 EP - 395 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Terstegge, Andreas A1 - Weber, Stefan A1 - Herzog, H. A1 - Reinartz, R. [u.a.] T1 - The design of an animal PET: flexible geometry for achieving optimal spatial resolution or high sensitivity JF - IEEE transactions on medical imaging. 16 (1997), H. 5 Y1 - 1997 SN - 0278-0062 SP - 684 EP - 689 ER - TY - JOUR A1 - Streun, M. A1 - Brandenburg, G. A1 - Larue, H. A1 - Parl, C. A1 - Ziemons, Karl T1 - The data acquisition system of ClearPET neuro - a small animal PET scanner JF - IEEE Transactions on Nuclear Science N2 - The Crystal Clear Collaboration has developed a modular system for a small animal PET scanner (ClearPET). The modularity allows the assembly of scanners of different sizes and characteristics in order to satisfy the specific needs of the individual member institutions. The system performs depth of interaction detection by using a phoswich arrangement combining LSO and LuYAP scintillators which are coupled to Multichannel Photomultipliers (PMTs). For each PMT a free running 40 MHz ADC digitizes the signal and the complete scintillation pulse is sampled by an FPGA and sent with 20 MB/s to a PC for preprocessing. The pulse provides information about the gamma energy and the scintillator material which identifies the interaction layer. Furthermore, the exact pulse starting time is obtained from the sampled data. This is important as no hardware coincidence detection is implemented. All single events are recorded and coincidences are identified by software. The system in Jülich (ClearPET Neuro) is equipped with 10240 crystals on 80 PMTs. The paper will present an overview of the data acquisition system. Y1 - 2006 SN - 0018-9499 VL - 53 IS - 3 SP - 700 EP - 703 ER - TY - JOUR A1 - Herzog, Hans A1 - Pietrzyk, Uwe A1 - Shah, N. Jon A1 - Ziemons, Karl T1 - The current state, challenges and perspectives of MR-PET JF - Neuroimage N2 - Following the success of PET/CT during the last decade and the recent increasing proliferation of SPECT/CT, another hybrid imaging instrument has been gaining more and more interest: MR-PET. First combined, simultaneous PET and MR studies carried out in small animals demonstrated the feasibility of the new approach. Concurrently, some prototypes of an MR-PET scanner for simultaneous human brain studies have been built, their performance is being tested and preliminary applications have already been shown. Through this pioneering work, it has become clear that advances in the detector design are necessary for further optimization. Recently, the different issues related to the present state and future prospects of MR-PET were presented and discussed during an international 2-day workshop at the Forschungszentrum Jülich, Germany, held after, and in conjunction with, the 2008 IEEE Nuclear Science Symposium and Medical Imaging Conference in Dresden, Germany on October 27–28, 2008. The topics ranged from small animal MR-PET imaging to human MR-BrainPET imaging, new detector developments, challenges/opportunities for ultra-high field MR-PET imaging and considerations of possible future research and clinical applications. This report presents a critical summary of the contributions made to the workshop. Y1 - 2010 U6 - http://dx.doi.org/10.1016/j.neuroimage.2009.10.036 SN - 1053-8119 VL - 49 IS - 3 SP - 2072 EP - 2082 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Hardt, Arno A1 - Martin, S. A1 - Meißburger, J. A1 - Retz, R. A1 - Wimmer, J. T1 - The cryopump system of the QQDDQ magnet spectrometer BIG KARL JF - Vacuum N2 - Cryopumps without liquid nitrogen shielding are used to provide a vacuum of 10−6 torr in the spectrometer. The vacuum system is subdivided in three sections that can be separated by valves. The first section (scattering chamber) has a volume of 60 l, two rotation transmissions with 35 cm dia and a sliding seal that allows a rotation of 160° without deteriorating the vacuum. The second section includes the vacuum chambers inside the magnets with 6 × 80 cm cross-section and a length of 1200 cm. The third section (detector box) has a volume of 4300 l and contains a moveable detector system. The gas inside the detector with a pressure of 760 torr is separated from the vacuum by a 15 μm mylar foil with an area of 300 cm2. The detector box can be valved off by a valve with the dimension of 10 × 100 cm. The layout of system is given. The instrumentation and the interlock system are described. First experiences with this system are presented. Y1 - 1978 U6 - http://dx.doi.org/10.1016/S0042-207X(78)80026-8 SN - 1879-2715 (E-Journal); 0042-207X (Print) VL - 28 IS - 10-11 SP - 483 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Dethloff, Nina A1 - Kroll-Ludwigs, Kathrin T1 - The Constitutional Court as Driver of Reforms in German Family Law JF - International Survey of Family Law Y1 - 2018 SP - 217 EP - 234 ER - TY - JOUR A1 - Hellwig, Angelika A1 - Volkmann, Lutz T1 - The connectivity of a graph and its complement JF - Discrete applied mathematics Y1 - 2008 SN - 0166-218X (E-Journal); 1872-6771 (E-Journal); 0166-218X (Print) VL - Vol. 156 IS - Iss. 17 SP - 3325 EP - 3328 ER - TY - JOUR A1 - Czupalla, Markus A1 - Horneck, G. A1 - Blome, Hans-Joachim T1 - The conceptual design of a hybrid life support system based on the evaluation and comparison of terrestrial testbeds JF - Advances in Space Research Y1 - 2005 SN - 0273-1177 VL - 35 IS - 9 SP - 1609 EP - 1620 ER - TY - JOUR A1 - Öhlschläger, Peter A1 - Spies, Elmar A1 - Alvarez, Gerardo A1 - Quetting, Michael A1 - Groettrup, Marcus T1 - The combination of TLR-9 adjuvantation and electroporation-mediated delivery enhances in vivo antitumor responses after vaccination with HPV-16 E7 encoding DNA JF - International Journal of Cancer. 128 (2011), H. 2 Y1 - 2011 SN - 1097-0215 SP - 473 EP - 481 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Ziemons, Karl A1 - Auffray, E. A1 - Barbier, R. A1 - Brandenburg, G. A1 - Bruyndonckx, P. T1 - The ClearPET™ project: Development of a 2nd generation high-performance small animal PET scanner JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment N2 - Second generation high-performance PET scanners, called ClearPET™1, have been developed by working groups of the Crystal Clear Collaboration (CCC). High sensitivity and high spatial resolution for the ClearPET camera is achieved by using a phoswich arrangement combining two different types of lutetium-based scintillator materials: LSO from CTI and LuYAP:Ce from the CCC (ISTC project). In a first ClearPET prototype, phoswich arrangements of 8×8 crystals of 2×2×10 mm3 are coupled to multi-channel photomultiplier tubes (Hamamatsu R7600). A unit of four PMTs arranged in-line represents one of 20 sectors of the ring design. The opening diameter of the ring is 120 mm, the axial detector length is 110 mm.The PMT pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the exact pulse starting time, which is subsequently used for coincidence detection. The gantry allows rotation of the detector modules around the field of view. Preliminary data shows a correct identification of the crystal layer about (98±1)%. Typically the energy resolution is (23.3±0.5)% for the luyap layer and (15.4±0.4)% for the lso layer. early studies showed the timing resolution of 2 ns FWHM and 4.8 ns FWTM. the intrinsic spatial resolution ranges from 1.37 mm to 1.61 mm full-width of half-maximum (FWHM) with a mean of 1.48 mm FWHM. further improvements in image and energy resolution are expected when the system geometry is fully modeled. Y1 - 2005 SN - 0168-9002 N1 - Proceedings of the 7th International Conference on Inorganic Scintillators and their Use in Scientific and Industrial Applications VL - 537 IS - 1-2 SP - 307 EP - 311 ER - TY - JOUR A1 - Ziemons, Karl A1 - Achten, R. A1 - Auffray, E. A1 - Müller-Veggian, Mattea T1 - The ClearPET™ neuro scanner: a dedicated LSO/LuYAP phoswich small animal PET scanner JF - 2004 IEEE Nuclear Science Symposium conference record : Nuclear Science Symposium, Medical Imaging Conference ; 16 - 22 October 2004, Rome, Italy ; [including the Symposium on Nuclear Power System (SNPS), 14th Room Temperature Semiconductor X- and Gamma-Ray Detectors Workshop and special focus workshops] / NPSS, Nuclear & Plasma Sciences Society. Guest ed.: J. Anthony Seibert Y1 - 2004 SN - 1082-3654 N1 - Nuclear Science Symposium Conference Record, 2004 IEEE SP - 2430 EP - 2433 PB - IEEE Operations Center CY - Piscataway, NJ ER - TY - JOUR A1 - Ziemons, Karl A1 - Auffray, E. A1 - Barbier, R. A1 - Brandenburg, G. T1 - The ClearPET TM LSO/LuYAP phoswich scanner: a high performance small animal PET system JF - 2003 IEEE Nuclear Science Symposium Conference Record, Vol. 3 N2 - A 2nd generation high performance small animal PET scanner, called ClearPET™, has been designed and a first prototype is built by working groups of the Crystal Clear Collaboration (CCC). In order to achieve high sensitivity and maintain good uniform spatial resolution over the field of view in high resolution PET systems, it is necessary to extract the depth of interaction (DOI) information and correct for spatial degradation. The design of the first ClearPET™ Demonstrator based on the use of the multi-anode photomultiplier tube (Hamamatsu R7600-M64) and a LSO/LuYAP phoswich matrix. The two crystal layers of 8*8 crystals (2*2*10 mm3) are stacked on each other and mounted without light guide as one to one on the PMT. A unit of four PMTs arranged in-line represents one of 20 sectors of the ring design. The opening diameter of the crystal ring is 137 mm, the axial detector length is 110 mm. The PMT pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the pulse arrival time. Single gamma interactions are recorded and coincidences are found by software. The gantry allows rotation of the detector modules around the field of view. The measurements have been done using the first LSO/LuYAP detector cassettes. Y1 - 2004 SN - 1082-3654 SP - 1728 EP - 1732 ER -