TY  - CHAP
A1  - Zähl, Philipp M.
A1  - Biewendt, Marcel
A1  - Wolf, Martin
A1  - Eggert, Mathias
T1  - Requirements for Competence Developing Games in the Environment of SE Competence Development
T2  - Angewandte Forschung in der Wirtschaftsinformatik 2022
N2  - Many of today’s factors make software development more and more complex, such as time pressure, new technologies, IT security risks, et cetera. Thus, a good preparation of current as well as future software developers in terms of a good software engineering education becomes progressively important. As current research shows, Competence Developing Games (CDGs) and Serious Games can offer a potential solution.

This paper identifies the necessary requirements for CDGs to be conducive in principle, but especially in software engineering (SE) education. For this purpose, the current state of research was summarized in the context of a literature review. Afterwards, some of the identified requirements as well as some additional requirements were evaluated by a survey in terms of subjective relevance.
KW  - software engineering
KW  - requirements
KW  - competence developing games
KW  - systematic literature review
Y1  - 2022
SN  - 978-3-95545-409-8
U6  - http://dx.doi.org/10.30844/AKWI_2022_05
N1  - Tagungsband zur 35. Jahrestagung des Arbeitskreises Wirtschaftsinformatik an Hochschulen für Angewandte Wissenschaften im deutschsprachigen Raum (AKWI) vom 11.09. bis 13.09.2022, ausgerichtet von der Hochschule für Technik und Wirtschaft Berlin (HTW Berlin) und der Hochschule für Wirtschaft und Recht Berlin (HWR Berlin)
SP  - 73
EP  - 88
PB  - GITO
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Zug, Sebastian
A1  - Niemueller, Tim
A1  - Hochgeschwender, Nico
A1  - Seidensticker, Kai
A1  - Seidel, Martin
A1  - Friedrich, Tim
A1  - Neumann, Tobias
A1  - Karras, Ulrich
A1  - Kraetzschmar, Gerhard K.
A1  - Ferrein, Alexander
T1  - An Integration Challenge to Bridge the Gap Among Industry-Inspired RoboCup Leagues
T2  - RoboCup 2016: Robot World Cup XX. RoboCup 2016.
Y1  - 2017
SN  - 978-3-319-68792-6
U6  - http://dx.doi.org/10.1007/978-3-319-68792-6_13
N1  - Lecture Notes in Computer Science, LNCS, Vol 9776
SP  - 157
EP  - 168
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Zischank, Wolfgang J.
A1  - Kern, Alexander
A1  - Frentzel, Ralf
A1  - Heidler, Fridolin
A1  - Seevers, M.
T1  - Assessment of the lightning transient coupling to control cables interconnecting structures in large industrial facilities and power plants
N2  - Large industrial facilities and power plants often require a huge number fo information and control cables between the differnet structures. These I&C-cables can be routed in reinforced concrete cable ducts or in isolated buried cable runs. KTA 2206 is the German lightning protection standard for nuclear power plants. During the last several years considerable effort has been made to revise this standard. Despite the well established principles and design guidelines for the construction of the lightning protection system, this standard puts special emphasis on the coupling of transient overvoltages to I&C-cables.
KW  - Blitzschutz
KW  - Elektromagnetische Kopplung
KW  - Überspannung
KW  - Kraftwerke
KW  - Industrieanlagen
KW  - Lightning
KW  - current distribution
KW  - electromagnetic coupling
KW  - overvoltages
Y1  - 2000
ER  - 
TY  - CHAP
A1  - Zischank, Wolfgang J.
A1  - Heidler, Fridolin
A1  - Wiesinger, J.
A1  - Stimper, K.
A1  - Kern, Alexander
A1  - Seevers, M.
T1  - Magnetic Fields and Induced Voltages inside LPZ 1 Measured at a 1:6 Scale Model Building
N2  - Laborexperimente zu Blitzschutzzonen in Stahlbetongebäuden anhand eines Modells im Maßstab 1:6
N2  - For the application of the concept of Lightning Protection Zones (LPZ), the knowledge of the magnetic fields and induced voltages inside a structure is necessary. Laboratory experiments have been conducted at a downscaled model of a building (scale factor 1:6) to determine these electromagnetic quantities in case of a direct strike to the structure. The model (3 m x 2 m x 2 m) represented a small industrial building using the reinforcement of the concrete as electromagnetic shield. The magnetic fields and magnetic field derivatives were measured at several location inside the scaled model. Further, the voltages induced on three typical cable routes inside the model was determined. The influence of the lightning current waveshape, point-of-strike, bonding of the cable routes, and bridging of an expansion joint in the middle of the building on these quantities was studied.
KW  - Blitzschlag
KW  - Elektromagnetischer Schutzschild
KW  - Stahlbeton
KW  - Maßstabsgetreues Modell
KW  - Lightning
KW  - electromagnetic shielding
KW  - reinforced concrete
KW  - scaled model
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Zischank, Wolfgang J.
A1  - Heidler, Fridolin
A1  - Wiesinger, J.
A1  - Metwally, I.
A1  - Kern, Alexander
A1  - Seevers, M.
T1  - Laboratory simulation of direct lightning strokes to a modeled building : measurement of magnetic fields and included voltages
JF  - Journal of electrostatics. 60 (2004), H. 2 - 4
Y1  - 2004
SN  - 0304-3886
N1  - ISSN der E-Ausg.: 0304-3886
SP  - 223
EP  - 232
ER  - 
TY  - CHAP
A1  - Zischank, Wolfgang J.
A1  - Heidler, Fridolin
A1  - Kern, Alexander
A1  - Metwally, I. A.
A1  - Wiesinger, J.
A1  - Seevers, M.
T1  - Laboratory simulation of direct lightning strokes to a modelled building - measurement of magnetic fields and induced voltages
N2  - In IEC 61312-2 equations for the assessment of the magnetic fields inside structures due to a direct lightning strike are given. These equations are based on computer simulations for shields consisting of a single-layer steel grid of a given mesh width. Real constructions, however, contain at least two layers of reinforcement steel grids. The objective of this study was to experimentally determine the additional shielding effectiveness of a second reinforcement layer compared to a single-layer grid. To this end, simulated structures were set up in the high current laboratory. The structures consisted of cubic cages of 2 m side length with one or with two reinforcement grids, respectively. The structures were exposed to direct lightning currents representing the variety of anticipated lightning current waveforms. The magnetic fields and their derivatives at several positions inside the structure as well as the voltage between “floor” and “roof” in the center were determined for different current injection points. From these data the improvement of the shielding caused by a second reinforcement layer is derived.
KW  - Direkter Blitzschlag
KW  - Elektromagnetischer Schutzschild
KW  - Magnetische Felder
KW  - Induzierte Spannungen
KW  - Stahlbetonkonstruktion
KW  - Lightning
KW  - electromagnetic shielding
KW  - magnetic field
KW  - reinforced concrete
KW  - induced voltage
Y1  - 2002
ER  - 
TY  - CHAP
A1  - Ziolko, C.
A1  - Schmitz, M.
A1  - Sattler, Johannes, Christoph
A1  - Khedim, Ahmed
A1  - Hoffschmidt, Bernhard
T1  - AlSol - the open volumetric receiver technology moves to Africa
T2  - SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France
Y1  - 2010
SP  - 93
EP  - 94
PB  - Soc. OSC
CY  - Saint Maur
ER  - 
TY  - CHAP
A1  - Zingsheim, Jonas
A1  - Grimmer, Timo
A1  - Ortner, Marion
A1  - Schmaderer, Christoph
A1  - Hauser, Christine
A1  - Kotliar, Konstantin
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Recognition of subjects with mild cognitive impairment (MCI) by the use of retinal arterial vessels.
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - http://dx.doi.org/10.17185/duepublico/48750
SP  - 36
EP  - 37
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Ziller, Claudia
A1  - Döring, Bernd
ED  - Carmeliet, J.
ED  - Hens, H.
ED  - Vermeir, G.
T1  - Influence of the external dynamic wind pressure on the ventilation of double facades
T2  - Research in building physics: proceedings of the Second International Conference on Building Physics : Leuven, Belgium, 14-18 September 2003
Y1  - 2003
SN  - 9058095657, 9789058095657
SP  - 527
EP  - 533
PB  - Taylor and Francis
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Zientz, Evelyn
A1  - Bongaerts, Johannes
A1  - Unden, Gottfried
T1  - Fumarate regulation of gene expression in Escherichia coli by the DcuSR (dcuSR genes) two-component regulatory system
JF  - Journal of bacteriology
Y1  - 1998
SN  - 1098-5530 (E-Journal); 0021-9193 (Print)
VL  - Vol. 180
IS  - No. 20
SP  - 5421
EP  - 5425
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
A1  - Herzog, H.
A1  - Feinendegen, L. E.
T1  - Iterative image reconstruction with weighted pixel contribution to projection element
JF  - European Journal of Nuclear Medicine
Y1  - 1990
SN  - 1619-7089
N1  - Abstracts of the European Association of Nuclear Medicine Congress ; V52
VL  - 16
IS  - 7
SP  - 403
EP  - 403
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
A1  - Herzog, H.
A1  - Bosetti, P.
A1  - Feinendegen, L. E.
T1  - Iterative image reconstruction with weighted pixel contribution to projection elements
JF  - European Journal of Nuclear Medicine
Y1  - 1992
SN  - 1619-7089
N1  - Abstracts of the European Association of Nuclear Medicine Congress 23–26 August 1992 Lisboa, Portugal ; V143-2
VL  - 19
IS  - 8
SP  - 588
EP  - 588
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
A1  - Heinrichs, U.
A1  - Streun, M.
A1  - Pietrzyk, U.
T1  - Validation of GEANT3 simulation studies with a dual-head PMT ClearPET™ prototype
JF  - 2003 IEEE Nuclear Science Symposium Conference Record, Vol. 5
N2  - The ClearPET™ project is proposed by working groups of the Crystal Clear Collaboration (CCC) to develop a 2nd generation high performance small animal positron emission tomograph (PET). High sensitivity and high spatial resolution is foreseen for the ClearPET™ camera by using a phoswich arrangement combining mixed lutetium yttrium aluminum perovskite (LuYAP:Ce) and lutetium oxyorthosilicate (LSO) scintillating crystals. Design optimizations for the first photomultiplier tube (PMT) based ClearPET camera are done with a Monte-Carlo simulation package implemented on GEANT3 (CERN, Geneva, Switzerland). A dual-head prototype has been built to test the frontend electronics and was used to validate the implementation of the GEANT3 simulation tool. Multiple simulations were performed following the experimental protocols to measure the intrinsic resolution and the sensitivity profile in axial and radial direction. Including a mean energy resolution of about 27.0% the simulated intrinsic resolution is about (1.41±0.11)mm compared to the measured of (1.48±0.06)mm. The simulated sensitivity profiles show a mean square deviation of 12.6% in axial direction and 3.6% in radial direction. Satisfactorily these results are representative for all designs and confirm the scanner geometry.
Y1  - 2004
SN  - 1082-3654
SP  - 3053
EP  - 3056
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
A1  - Bruyndonckx, P.
A1  - Perez, J. M.
A1  - Pietrzyk, U.
A1  - Rato, P.
A1  - Tavernier, S.
T1  - Beyond ClearPET: Next Aims
JF  - 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro Symposium Proceedings ISBI 2008
N2  - The CRYSTAL CLEAR collaboration, in short CCC, is a consortium of 12 academic institutions, mainly from Europe, joining efforts in the area of developing instrumentation for nuclear medicine and medical imaging. In the framework of the CCC a high performance small animal PET system, called ClearPET, was developed by using new technologies in electronics and crystals in a phoswich arrangement combining two types of lutetium- based scintillator materials: LSO:Ce and LuYAP:Ce. Our next aim will be the development of hybrid image systems. Hybrid MR-PET imaging has many unique advantages for brain research. This has sparked a new research line within CCC for the development of novel MR-PET compatible technologies. MRI is not as sensitive as PET but PET has poorer spatial resolution than MRI. Two major advantages of PET are sensitivity and its ability to acquire metabolic information. To assess these innovations, the development of a 9.4T hybrid animal MR-PET scanner is proposed based on an existing 9.4T MR scanner that will be adapted to enable simultaneous acquisition of MR and PET data using cutting- edge technology for both MR and PET.
Y1  - 2008
SN  - 978-1-4244-2003-2
SP  - 1421
EP  - 1424
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
A1  - Berghoff, G.
A1  - Lanske, D.
A1  - Schultze, K.
T1  - Strangeness production in deep inelastic muon-nucleon scattering
JF  - Verhandlungen der Deutschen Physikalischen Gesellschaft
Y1  - 1988
SN  - 0420-0195
VL  - 23
IS  - 5
SP  - T309
EP  - T309
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  - 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  - 
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
T1  - Jet production and fragmentation properties in deep inelastic muon scattering
JF  - Zeitschrift für Physik C :  Particles and Fields
Y1  - 1987
SN  - 0170-9739
N1  - European Muon Collaboration
VL  - 36
IS  - 4
SP  - 527
EP  - 543
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
T1  - A measurement of the spin asymmetry of the structure function g1 in deep inelastic muon-proton scattering
JF  - Physics Letters B
N2  - The spin asymmetry in deep inelastic scattering of longitudinally polarised muons by longitudinally polarised protons has been measured over a large x range (0.01<x<0.7). The spin-dependent structure function g1(x) for the proton has been determined and its integral over x found to be 0.114±0.012±0.026, in disagreement with the Ellis-Jaffe sum rule. Assuming the validity of the Bjorken sum rule, this result implies a significant negative value for the integral of g1 for the neutron. These values for the integrals of g1 lead to the conclusion that the total quark spin constitutes a rather small fraction of the spin of the nucleon.
Y1  - 1988
SN  - 0370-2693
N1  - European Muon Collaboration
VL  - 206
IS  - 2
SP  - 364
EP  - 370
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
T1  - An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons and polarised protons
JF  - Nuclear Physics B
N2  - The spin asymmetry in deep inelastic scattering of longitudinally polarised muons by longitudinally polarised protons has been measured in the range 0.01<×<0.7. The spin dependent structure function g1(x) for the proton has been determined and, combining the data with earlier SLAC measurements, its integral over x found to be 0.126±0.010(stat.)±0.015(syst.), in disagreement with the Ellis-Jaffe sum rule. Assuming the validity of the Biorken sum rule, this result implies a significant negative value for the integral of g1 for the neutron. These integrals lead to the conclusion, in the naïve quark parton model, that the total quark spin constitutes a rather small fraction of the spin of the nucleon. Results are also presented on the asymmetries in inclusive hadron production which are consistent with the above picture.
Y1  - 1989
SN  - 0550-3213
N1  - European Muon Collaboration
VL  - 328
IS  - 1
SP  - 1
EP  - 35
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
T1  - Comparison of forward hadrons produced in muon interactions on nuclear targets and deuterium
JF  - Zeitschrift für Physik C Particles and Fields
N2  - Differential multiplicities of forward produced hadrons in deep inelastic muon scattering on nuclear targets have been compared with those from deuterium. The ratios are observed to increase towards unity as the virtual photon energy increases with no significant dependence on the other muon kinematic variables. The hadron transverse momentum distribution is observed to be broadened in nuclear targets. The dependence on the remaining hadron variables is investigated and the results are discussed in the framework of intranuclear interaction models and in the context of the EMC effect.
Y1  - 1991
SN  - 1431-5858
N1  - European Muon Collaboration
VL  - 52
IS  - 1
SP  - 1
EP  - 11
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
T1  - Muoproduction of J/ψ and the gluon distribution of the nucleon
JF  - Zeitschrift für Physik C Particles and Fields
N2  - Measurements are presented of the inclusive distributions of the J/Ψ meson produced by muons of energy 200 GeV from an ammonia target. The gluon distribution of the nucleon has been derived from the data in the range 0.04<x<0.36 using a technique based on the colour singlet model. An arbitrary normalisation factor is required to obtain a reasonable integral of the gluon distribution. Some comments are made on the use of J/Ψ productionby virtual photons to extract the gluon distribution at HERA.
Y1  - 1992
SN  - 1431-5858
N1  - European Muon Collaboration
VL  - 56
IS  - 1
SP  - 21
EP  - 28
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
T1  - A measurement of the ratio of the nucleon structure function in copper and deuterium
JF  - Zeitschrift für Physik C Particles and Fields
N2  - Results are presented on the ratios of the nucleon structure function in copper to deuterium from two separate experiments. The data confirm that the nucleon structure function,F 2, is different for bound nucleons than for the quasi-free ones in the deuteron. The redistribution in the fraction of the nucleon's momentum carried by quarks is investigated and it is found that the data are compatible with no integral loss of quark momenta due to nuclear effects.
Y1  - 1993
SN  - 1431-5858
N1  - European Muon Collaboration
VL  - 57
IS  - 2
SP  - 211
EP  - 218
ER  - 
TY  - CHAP
A1  - Ziegler, M.
A1  - Schüller, R.
A1  - Mottaghy, Darius
T1  - Numerical simulation of energy consumption of artificial ground freezing applications subject to water seepage
T1  - Simulation numérique de la consummation d´énergie des applications pour la congélation artificielle du sol soumise au flux de l´eau souterraine
T2  - Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
Y1  - 2013
SP  - 2985
EP  - 2988
ER  - 
TY  - CHAP
A1  - Zhubanova, Azhar A.
A1  - Mansurov, Zulkhair A.
A1  - Digel, Ilya
T1  - Use of Advanced Nanomaterials for Bioremediation of Contaminated Ecosystems
T2  - Carbon Nanomaterials in Biomedicine and the Environment
N2  - This chapter shows that nanomaterials obtained by high-temperature carbonization of inexpensive plant raw material such as rice husk, grape seeds, and walnut shells can serve as a basis for the production of highly efficient microbial drugs, biodestructors, biosorbents, and biocatalysts, which are promising for the remediation of the ecosystem contaminated with heavy and radioactive metals, oil and oil products. A strong interest in engineering zymology is dictated by the necessity to address the issues of monitoring enzymatic processes, treatment, and diagnosis of a number of common human diseases, environmental pollution, quality control of pharmaceuticals and food. Nanomaterials obtained by high-temperature carbonization of cheap plant raw material such as-rice husks, grape seeds and walnut shells, can serve as a basis for creating of highly effective microbial preparations-biodestructors, biosorbents and biocatalysts, which are promising for the use of contaminated ecosystems, and for restoration of human intestine microecology.
Y1  - 2020
SN  - 978-981-4800-27-3
U6  - http://dx.doi.org/10.1201/9780429428647-18
SP  - 353
EP  - 378
PB  - Jenny Stanford Publishing
CY  - Singapore
ER  - 
TY  - JOUR
A1  - Zhubanova, Azhar A.
A1  - Digel, Ilya
A1  - Nojima, H.
A1  - Artmann, Gerhard
T1  - The use of bactericidal effects of cluster ions generated by plasma in medical biotechnology
N2  - The most of conventional methods of air purification use the power of a fan to draw in air and pass it through a filter. The problem of bacterial contamination of inner parts of such a type of air conditioners in some cases draws attention towards alternative air-cleaning systems. Some manufacturers offer to use the ozone's bactericidal and deodorizing effects, but the wide spreading of such systems is restricted by the fact that toxic effects of ozone in respect of human beings are well known. In 2000 Sharp Inc. introduced "Plasma Cluster Ions (PCI)" air purification technology, which uses plasma discharge to generate cluster ions (I 0-14 ). This technology has been developed for those customers that are conscious about health and hygiene. In our experiments, we focused on some principal aspects of plasma-generated ions application - time-dependency and irreversibility of bactericidal action, spatial and kinetic characteristics of emitted cluster particles, their chemical targets in the microbial cells.
KW  - Clusterion
KW  - Raumluft
KW  - Luftreiniger
KW  - Plasmacluster ion technology
KW  - Air purification
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Zhubanova, Azhar A.
A1  - Aknazarov, S. K.
A1  - Mansurov, Zulkhair
A1  - Digel, Ilya
A1  - Kozhalakova, A. A.
A1  - Akimbekov, Nuraly Shardarbekovich
A1  - O'Heras, Carlos
A1  - Tazhibayeva, S.
A1  - Artmann, Gerhard
A1  - Temiz Artmann, Aysegül
T1  - Adsorption of bacterial Lipopolysaccharides and blood plasma proteins on modified carbonized materials
N2  - Bacterial lipopolysaccharides (endotoxins) show strong biological effects at very low concentrations in human beings and many animals when entering the blood stream. These include affecting structure and function of organs and cells, changing metabolic functions, raising body temperature, triggering the coagulation cascade, modifying hemodynamics and causing septic shock. Because of this toxicity, the removal of even minute amounts is essential for safe parenteral administration of drugs and also for septic shock patients' care. The absence of a general method for endotoxin removal from liquid interfaces urgently requires finding new methods and materials to overcome this gap. Nanostructured carbonized plant parts is a promising material that showed good adsorption properties due to its vast pore network and high surface area. The aim of this study was comparative measurement of endotoxin- and blood proteins-related adsorption rate and adsorption capacity for different carboneous materials produced at different temperatures and under different surface modifications. As a main surface modificator, positively cbarged polymer, polyethileneimine (PEl) was used. Activated carbon materials showed good adsorption properties for LPS and some proteins used in the experiments. During the batch experiments, several techniques (dust removal, autoclaving) were used and optimized for improving the material's adsorption behavior. Also, with the results obtained it was possible to differentiate the materials according to their adsorption capacity and kinetic characteristics. Modification of the surface apparently has not affected hemoglobin binding to the adsorbent's surface. Obtained adsorption isotherms can be used as a powerful tool for designing of future column-based setups for blood purification from LPS, which is especially important for septic shock treatment.
KW  - Kohlenstofffaser
KW  - Lipopolysaccharide
KW  - nanostrukturierte carbonisierte Pflanzenteile
KW  - lipopolysaccharides
KW  - nanostructured carbonized plant parts
Y1  - 2010
ER  - 
TY  - JOUR
A1  - Zhen, Manghao
A1  - Liang, Yunpei
A1  - Staat, Manfred
A1  - Li, Quanqui
A1  - Li, Jianbo
T1  - Discontinuous fracture behaviors and constitutive model of sandstone specimens containing non-parallel prefabricated fissures under uniaxial compression
JF  - Theoretical and Applied Fracture Mechanics
N2  - The deformation and damage laws of non-homogeneous irregular structural planes in rocks are the basis for studying the stability of rock engineering. To investigate the damage characteristics of rock containing non-parallel fissures, uniaxial compression tests and numerical simulations were conducted on sandstone specimens containing three non-parallel fissures inclined at 0°, 45° and 90° in this study. The characteristics of crack initiation and crack evolution of fissures with different inclinations were analyzed. A constitutive model for the discontinuous fractures of fissured sandstone was proposed. The results show that the fracture behaviors of fissured sandstone specimens are discontinuous. The stress–strain curves are non-smooth and can be divided into nonlinear crack closure stage, linear elastic stage, plastic stage and brittle failure stage, of which the plastic stage contains discontinuous stress drops. During the uniaxial compression test, the middle or ends of 0° fissures were the first to crack compared to 45° and 90° fissures. The end with small distance between 0° and 45° fissures cracked first, and the end with large distance cracked later. After the final failure, 0° fissures in all specimens were fractured, while 45° and 90° fissures were not necessarily fractured. Numerical simulation results show that the concentration of compressive stress at the tips of 0°, 45° and 90° fissures, as well as the concentration of tensile stress on both sides, decreased with the increase of the inclination angle. A constitutive model for the discontinuous fractures of fissured sandstone specimens was derived by combining the logistic model and damage mechanic theory. This model can well describe the discontinuous drops of stress and agrees well with the whole processes of the stress–strain curves of the fissured sandstone specimens.
KW  - Constitutive model
KW  - Damage mechanics theory
KW  - Discontinuous fractures
KW  - Uniaxial compression test
KW  - Non-parallel fissures
Y1  - 2024
U6  - http://dx.doi.org/10.1016/j.tafmec.2024.104373
SN  - 0167-8442
VL  - 131
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Zhantlessova, Sirina
A1  - Savitskaya, Irina
A1  - Kistaubayeva, Aida
A1  - Ignatova, Ludmila
A1  - Talipova, Aizhan
A1  - Pogrebnjak, Alexander
A1  - Digel, Ilya
T1  - Advanced “Green” prebiotic composite of bacterial cellulose/pullulan based on synthetic biology-powered microbial coculture strategy
JF  - Polymers
N2  - Bacterial cellulose (BC) is a biopolymer produced by different microorganisms, but in biotechnological practice, Komagataeibacter xylinus is used. The micro- and nanofibrillar structure of BC, which forms many different-sized pores, creates prerequisites for the introduction of other polymers into it, including those synthesized by other microorganisms. The study aims to develop a cocultivation system of BC and prebiotic producers to obtain BC-based composite material with prebiotic activity. In this study, pullulan (PUL) was found to stimulate the growth of the probiotic strain Lactobacillus rhamnosus GG better than the other microbial polysaccharides gellan and xanthan. BC/PUL biocomposite with prebiotic properties was obtained by cocultivation of Komagataeibacter xylinus and Aureobasidium pullulans, BC and PUL producers respectively, on molasses medium. The inclusion of PUL in BC is proved gravimetrically by scanning electron microscopy and by Fourier transformed infrared spectroscopy. Cocultivation demonstrated a composite effect on the aggregation and binding of BC fibers, which led to a significant improvement in mechanical properties. The developed approach for “grafting” of prebiotic activity on BC allows preparation of environmentally friendly composites of better quality.
KW  - coculture
KW  - pullulan
KW  - exopolysaccharides
KW  - prebiotic
KW  - bacterial cellulose
Y1  - 2022
U6  - http://dx.doi.org/10.3390/polym14153224
SN  - 2073-4360
N1  - This article belongs to the Special Issue "Cellulose Based Composites"
VL  - 14
IS  - 15
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Zhang, Jin
A1  - Heimbach, Tycho
A1  - Scheer, Nico
A1  - Barve, Avantika
A1  - Li, Wenkui
A1  - Lin, Wen
A1  - He, Handan
T1  - Clinical Exposure Boost Predictions by Integrating Cytochrome P450 3A4–Humanized Mouse Studies With PBPK Modeling
JF  - Journal of Pharmaceutical Sciences
N2  - NVS123 is a poorly water-soluble protease 56 inhibitor in clinical development. Data from in vitro hepatocyte studies suggested that NVS123 is mainly metabolized by CYP3A4. As a consequence of limited solubility, NVS123 therapeutic plasma exposures could not be achieved even with high doses and optimized formulations. One approach to overcome NVS123 developability issues was to increase plasma exposure by coadministrating it with an inhibitor of CYP3A4 such as ritonavir. A clinical boost effect was predicted by using physiologically based pharmacokinetic (PBPK) modeling. However, initial boost predictions lacked sufficient confidence because a key parameter, fraction of drug metabolized by CYP3A4 (ƒₘCYP3A4), could not be estimated with accuracy on account of disconnects between in vitro and in vivo preclinical data. To accurately estimate ƒₘCYP3A4 in human, an in vivo boost effect study was conducted using CYP3A4-humanized mouse model which showed a 33- to 56-fold exposure boost effect. Using a top-down approach, human ƒₘCYP3A4 for NVS123 was estimated to be very high and included in the human PBPK modeling to support subsequent clinical study design. The combined use of the in vivo boost study in CYP3A4-humanized mouse model mice along with PBPK modeling accurately predicted the clinical outcome and identified a significant NVS123 exposure boost (∼42-fold increase) with ritonavir.
Y1  - 2016
U6  - http://dx.doi.org/doi.org/10.1016/j.xphs.2016.01.021
SN  - 0022-3549
VL  - Volume 105
IS  - Issue 4
SP  - 1398
EP  - 1404
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Zhang, G.
A1  - Valero, Daniel
A1  - Bung, Daniel B.
A1  - Chanson, H.
T1  - On the estimation of free-surface turbulence using ultrasonic sensors
JF  - Flow Measurement and Instrumentation
N2  - Accurate determination of free-surface dynamics has attracted much research attention during the past decade and has important applications in many environmental and water related areas. In this study, the free-surface dynamics in several turbulent flows commonly found in nature were investigated using a synchronised setup consisting of an ultrasonic sensor and a high-speed video camera. Basic sensor capabilities were examined in dry conditions to allow for a better characterisation of the present sensor model. The ultrasonic sensor was found to adequately reproduce free-surface dynamics up to the second order, especially in two-dimensional scenarios with the most energetic modes in the low frequency range. The sensor frequency response was satisfactory in the sub-20 Hz band, and its signal quality may be further improved by low-pass filtering prior to digitisation. The application of the USS to characterise entrapped air in high-velocity flows is also discussed.
Y1  - 2018
U6  - http://dx.doi.org/10.1016/j.flowmeasinst.2018.02.009
SN  - 0955-5986
VL  - 60
SP  - 171
EP  - 184
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Zerlin, Kay
A1  - Kasischke, Nicole
A1  - Digel, Ilya
A1  - Maggakis-Kelemen, Christina
A1  - Temiz Artmann, Aysegül
A1  - Porst, Dariusz
A1  - Kayser, Peter
A1  - Linder, Peter
A1  - Artmann, Gerhard
T1  - Structural transition temperature of hemoglobins correlates with species’ body temperature
JF  - European Biophysics Journal. 37 (2007), H. 1
Y1  - 2007
SN  - 1432-1017
SP  - 1
EP  - 10
ER  - 
TY  - JOUR
A1  - Zerlin, Kay
A1  - Digel, Ilya
A1  - Stadler, Andreas M.
A1  - Büldt, Georg
A1  - Zaccai, Guiseppe
A1  - Artmann, Gerhard
T1  - Dynamics and interactions of hemoglobin in human red blood cells and concentrated hemoglobin solutions
JF  - Regenerative medicine. 2 (2007), H. 5
Y1  - 2007
SN  - 1746-0751
N1  - Proceedings of the 3rd World Congress on Regenerative Medicine. October 18-20, 2007. Leipzig, Germany
SP  - 573
EP  - 573
ER  - 
TY  - JOUR
A1  - Zatko, B.
A1  - Dubecký, F.
A1  - Bohacek, P.
A1  - Gombia, E.
A1  - Frigeri, P.
A1  - Mosca, R.
A1  - Franchi, S.
A1  - Huarn, J.
A1  - Nescas, V.
A1  - Sekacova, M.
A1  - Förster, Arnold
A1  - Kordos, P.
T1  - On the spectrometric performance limit of radiation detectors based on semi-insulating GaAs
JF  - Nuclear instruments and methods in physics research, Section A. 531 (2004), H. 1-2
Y1  - 2004
SN  - 0168-9002
SP  - 111
EP  - 120
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
A1  - Rieder, G.
T1  - Bracketing eigenvalues of an oscillating elastic body by integral equations
JF  - Bracketing of eigenfrequencies of continous structures : Euromech Colloquium, no. 112, Mátrafüred (Hungary), 21 - 23 February, 1979 / ed. by À. Bosznay
Y1  - 1980
SN  - 963-05-2625-5
N1  - Euromech Colloquium <112, 1979, Mátrafüred>
SP  - 421
EP  - 434
PB  - Akad. Kiadó
CY  - Budapest
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
A1  - Panagiotopoulos, P. D.
T1  - An integral "Equation" approach to the unilateral contact problem
JF  - ZAMM - Zeitschrift für angewandte Mathematik und Mechanik. 59 (1979), H. 8
Y1  - 1979
SN  - 1521-4001
SP  - 392
EP  - 393
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
A1  - Hackl, Klaus
T1  - On the existence, uniqueness and completeness of displacements and stress functions in linear elasticity  / Hackl, Klaus ; Zastrow, Udo
JF  - Journal of Elasticity. 19 (1988), H. 1
Y1  - 1988
SN  - 1573-2681
SP  - 3
EP  - 23
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
T1  - On the formulation of the fundamental solutions for orthotropic plane elasticity
JF  - Acta Mechanica. 57 (1985), H. 3-4
Y1  - 1985
SN  - 1619-6937
SP  - 113
EP  - 122
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
T1  - On the complete system of fundamental solutions for anisotropic slices and slabs: A comparison by use of the slab analogy
JF  - Journal of Elasticity. 15 (1985), H. 3
Y1  - 1985
SN  - 1573-2681
SP  - 293
EP  - 318
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
T1  - Basic geometrical singularities in plane-elasticity and plate-bending problems
JF  - International Journal of Solids and Structures. 21 (1985), H. 10
Y1  - 1985
SN  - 0020-7683
SP  - 1047
EP  - 1067
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
T1  - Numerical plane stress analysis by integral equations based on the singularity method
JF  - SM archives . 10 (1985)
Y1  - 1985
SN  - 0376-7426
SP  - 113
EP  - 128
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
T1  - Solution of plane anisotropic elastostatical boundary value problems by singular integral equations
JF  - Acta Mechanica. 44 (1982), H. 1-2
Y1  - 1982
SN  - 1619-6937
SP  - 59
EP  - 71
ER  - 
TY  - JOUR
A1  - Zange, Jochen
A1  - Schopen, Kathrin
A1  - Albracht, Kirsten
A1  - Gerlach, Darius A.
A1  - Frings-Meuthen, Petra
A1  - Maffiuletti, Nicola A.
A1  - Bloch, Wilhelm
A1  - Rittweger, Jörn
T1  - Using the Hephaistos orthotic device to study countermeasure effectiveness of neuromuscular electrical stimulation and dietary lupin protein supplementation, a randomised controlled trial
JF  - Plos one
Y1  - 2017
U6  - http://dx.doi.org/10.1371/journal.pone.0171562
VL  - 12
IS  - 2
ER  - 
TY  - CHAP
A1  - Zang, Zhigang
A1  - Hess, Holger
A1  - Ringbeck, Thorsten
A1  - Schwarte, Rudolf
ED  - Kamerman, Gary W.
T1  - Phase-lock techniques using new correlation receivers for TOF-laser ranging
T2  - Laser radar technology and applications VII : 3 - 4 April 2002, Orlando, USA. - (SPIE proceedings series ; 4723)
Y1  - 2002
SN  - 0-8194-4473-1
SN  - 0038-7355
SN  - 0361-0748
SN  - 0277-786X
N1  - Laser Radar Technology and Applications <7, 2002, Orlando, FL>
SP  - 112
EP  - 120
PB  - SPIE, International Society for Optical Engineering
CY  - Bellingham, Wash.
ER  - 
TY  - CHAP
A1  - Zahra, Mahdi
A1  - Phani Srujan, Merige
A1  - Caminos, Ricardo Alexander Chico
A1  - Schmitz, Pascal
A1  - Herrmann, Ulf
A1  - Teixeira Boura, Cristiano José
A1  - Schmitz, Mark
A1  - Gielen, Hans
A1  - Gedle, Yibekal
A1  - Dersch, Jürgen
T1  - Modeling the thermal behavior of solar salt in electrical resistance heaters for the application in PV-CSP hybrid power plants
T2  - SOLARPACES 2020
N2  - Concentrated Solar Power (CSP) systems are able to store energy cost-effectively in their integrated thermal energy storage (TES). By intelligently combining Photovoltaics (PV) systems with CSP, a further cost reduction of solar power plants is expected, as well as an increase in dispatchability and flexibility of power generation. PV-powered Resistance Heaters (RH) can be deployed to raise the temperature of the molten salt hot storage from 385 °C up to 565 °C in a Parabolic Trough Collector (PTC) plant. To avoid freezing and decomposition of molten salt, the temperature distribution in the electrical resistance heater is investigated in the present study. For this purpose, a RH has been modeled and CFD simulations have been performed. The simulation results show that the hottest regions occur on the electric rod surface behind the last baffle. A technical optimization was performed by adjusting three parameters: Shell-baffle clearance, electric rod-baffle clearance and number of baffles. After the technical optimization was carried out, the temperature difference between the maximum temperature and the average outlet temperature of the salt is within the acceptable limits, thus critical salt decomposition has been avoided. Additionally, the CFD simulations results were analyzed and compared with results obtained with a one-dimensional model in Modelica.
KW  - Solar thermal technologies
KW  - Hybrid energy system
KW  - Concentrated solar power
KW  - Energy storage
KW  - Photovoltaics
Y1  - 2022
SN  - 978-0-7354-4195-8
U6  - http://dx.doi.org/10.1063/5.0086268
SN  - 1551-7616 (online)
SN  - 0094-243X (print)
N1  - 26th International Conference on Concentrating Solar Power and Chemical Energy Systems
28 September–2 October 2020
Freiburg, Germany
IS  - 2445 / 1
PB  - AIP conference proceedings / American Institute of Physics
CY  - Melville, NY
ER  - 
TY  - BOOK
A1  - Yoshinobu, Tatsuo
A1  - Schöning, Michael Josef
ED  - Yoshinobu, Tatsuo
ED  - Schöning, Michael Josef
T1  - Light-addressing and chemical imaging technologies for electrochemical sensing
Y1  - 2020
SN  - 978-3-03943-029-1
U6  - http://dx.doi.org/10.3390/books978-3-03943-029-1
N1  - This book is a printed edition of the Special Issue Light-Addressing and Chemical Imaging Technologies for Electrochemical Sensing that was published in Sensors
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Yoshinobu, Tatsuo
A1  - Schöning, Michael Josef
T1  - Light-addressable potentiometric sensors (LAPS) for cell monitoring and biosensing
JF  - Current Opinion in Electrochemistry
Y1  - 2021
U6  - http://dx.doi.org/10.1016/j.coelec.2021.100727
SN  - 2451-9103
IS  - In Press, Journal Pre-proof
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Yoshinobu, Tatsuo
A1  - Moritz, Werner
A1  - Finger, Friedhelm
A1  - Schöning, Michael Josef
ED  - Comini, Elisabetta
T1  - Application of thin-film amorphous silicon to chemical imaging
JF  - Nanostructured materials and hybrid composites for gas sensors and biomedical applications : symposium held April 18-20, 2006, San Francisco , California, U.S.A.
Y1  - 2006
SN  - 9781558998711
N1  - Materials Research Society symposia proceedings; v. 915
IS  - Paper 0910-A-20-01
SP  - 1
EP  - 10
ER  - 
TY  - JOUR
A1  - Yoshinobu, Tatsuo
A1  - Miyamoto, Ko-ichiro
A1  - Werner, Frederik
A1  - Poghossian, Arshak
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
T1  - Light-addressable potentiometric sensors for quantitative spatial imaging of chemical species
JF  - Annual Review of Analytical Chemistry
N2  - A light-addressable potentiometric sensor (LAPS) is a semiconductor-based chemical sensor, in which a measurement site on the sensing surface is defined by illumination. This light addressability can be applied to visualize the spatial distribution of pH or the concentration of a specific chemical species, with potential applications in the fields of chemistry, materials science, biology, and medicine. In this review, the features of this chemical imaging sensor technology are compared with those of other technologies. Instrumentation, principles of operation, and various measurement modes of chemical imaging sensor systems are described. The review discusses and summarizes state-of-the-art technologies, especially with regard to the spatial resolution and measurement speed; for example, a high spatial resolution in a submicron range and a readout speed in the range of several tens of thousands of pixels per second have been achieved with the LAPS. The possibility of combining this technology with microfluidic devices and other potential future developments are discussed.
Y1  - 2017
U6  - http://dx.doi.org/10.1146/annurev-anchem-061516-045158
SN  - 1936-1327
VL  - 10
SP  - 225
EP  - 246
PB  - Annual Reviews
CY  - Palo Alto, Calif.
ER  -