TY  - JOUR
A1  - Jildeh, Zaid B.
A1  - Oberländer, Jan
A1  - Kirchner, Patrick
A1  - Keusgen, Michael
A1  - Wagner, Patrick H.
A1  - Schöning, Michael Josef
T1  - Experimental and Numerical Analyzes of a Sensor Based on Interdigitated Electrodes for Studying Microbiological Alterations
JF  - physica status solidi (a): applications and materials science
N2  - In this work, a cell-based biosensor to evaluate the sterilization efficacy of hydrogen peroxide vapor sterilization processes is characterized. The transducer of the biosensor is based on interdigitated gold electrodes fabricated on an inert glass substrate. Impedance spectroscopy is applied to evaluate the sensor behavior and the alteration of test microorganisms due to the sterilization process. These alterations are related to changes in relative permittivity and electrical conductivity of the bacterial spores. Sensor measurements are conducted with and without bacterial spores (Bacillus atrophaeus), as well as after an industrial sterilization protocol. Equivalent two-dimensional numerical models based on finite element method of the periodic finger structures of the interdigitated gold electrodes are designed and validated using COMSOL® Multiphysics software by the application of known dielectric properties. The validated models are used to compute the electrical properties at different sensor states (blank, loaded with spores, and after sterilization). As a final result, we will derive and tabulate the frequency-dependent electrical parameters of the spore layer using a novel model that combines experimental data with numerical optimization techniques.
Y1  - 2018
U6  - https://doi.org/10.1002/pssa.201700920
SN  - 1862-6319
VL  - 215
IS  - 15
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Böhnert, Arno
A1  - Blaschke, Florian
A1  - Biewendt, Marcel
T1  - Impact of sustainability on the strategic direction of luxury companies
JF  - European Journal of Marketing and Economics
N2  - Today’s society is undergoing a paradigm shift driven by the megatrend of sustainability. This undeniably affects all areas of Western life. This paper aims to find out how the luxury industry is dealing with this change and what adjustments are made by the companies. For this purpose, interviews were conducted with managers from the luxury industry, in which they were asked about specific measures taken by their companies as well as trends in the industry. In a subsequent evaluation, the trends in the luxury industry were summarized for the areas of ecological, social, and economic sustainability. It was found that the area of environmental sustainability is significantly more focused than the other sub-areas. Furthermore, the need for a customer survey to validate the industry-based measures was identified.
KW  - Operations
KW  - Brands
KW  - Luxury
KW  - Change
Y1  - 2022
SN  - 2601-8659
VL  - 6
IS  - 1
SP  - 70
EP  - 85
PB  - Revistia
CY  - London
ER  - 
TY  - JOUR
A1  - Ditzhaus, Marc
A1  - Gaigall, Daniel
T1  - Testing marginal homogeneity in Hilbert spaces with applications to stock market returns
JF  - Test
N2  - This paper considers a paired data framework and discusses the question of marginal homogeneity of bivariate high-dimensional or functional data. The related testing problem can be endowed into a more general setting for paired random variables taking values in a general Hilbert space. To address this problem, a Cramér–von-Mises type test statistic is applied and a bootstrap procedure is suggested to obtain critical values and finally a consistent test. The desired properties of a bootstrap test can be derived that are asymptotic exactness under the null hypothesis and consistency under alternatives. Simulations show the quality of the test in the finite sample case. A possible application is the comparison of two possibly dependent stock market returns based on functional data. The approach is demonstrated based on historical data for different stock market indices.
Y1  - 2022
U6  - https://doi.org/10.1007/s11749-022-00802-5
SN  - 1863-8260
VL  - 2022
IS  - 31
SP  - 749
EP  - 770
PB  - Springer
ER  - 
TY  - CHAP
A1  - Funke, Harald
A1  - Haj Ayed, A.
A1  - Kusterer, K.
A1  - Keinz, Jan
A1  - Kazari, M.
A1  - Kitajima, J.
A1  - Horikawa, A.
A1  - Okada, K.
T1  - Numerical Study on Increased Energy Density for the DLN Micromix Hydrogen Combustion Principle
T2  - Combustion, Fuels and Emissions (ASME Turbo Expo 2014: Turbine Technical Conference and Exposition : Düsseldorf, Germany, June 16–20, 2014 ; Vol. 4A)
Y1  - 2014
SN  - 978-0-7918-4568-4
N1  - Paper No. GT2014-25848
SP  - V04AT04A057
PB  - ASME
CY  - New York, N.Y.
ER  - 
TY  - CHAP
A1  - Hagebeuker, Bianca
A1  - Ringbeck, Thorsten
A1  - Frydlewicz, Paul
A1  - Jesorsky, Oliver
A1  - Sünkel, Thomas
ED  - Grote, Caspar
T1  - PMD-Sensoren als Schlüsselkomponenten für die mehrdimensionale Umfelderfassung des Fahrzeuginnenraums
T2  - Begleittexte zum Entwicklerforum KFZ-Elektronik & FlexRay Solution Day : 15.Mai 2007, Ludwigsburg
Y1  - 2007
N1  - Entwicklerforum Kfz-Elektronik <2007, Ludwigsburg> ; FlexRay Solution Day <2007, Ludwigsburg>
SP  - 287
EP  - 296
PB  - WEKA-Fachzeitschr.-Verl.
CY  - Poing
ER  - 
TY  - CHAP
A1  - Grothof, M.
A1  - Schwarte, Rudolf
A1  - Buxbaum, Bernd
A1  - Ringbeck, Thorsten
ED  - Wagner, Elmar
T1  - Product monitoring with MSM-PMD-Array
T2  - Proceedings / OPTO 2002 : an event of the Association for Sensor Technology AMA ; 14 - 16 May 2002, Exhibition Centre Erfurt, Germany / International Conference Optoelectronics, Optical Sensors & Measuring Techniques
Y1  - 2002
N1  - OPTO <5, 2002, Erfurt> ; International Conference Optoelectronics, Optical Sensors & Measuring Techniques
SP  - 41
EP  - 47
PB  - AMA Service GmbH
CY  - Wunsdorf
ER  - 
TY  - CHAP
A1  - Buxbaum, Bernd
A1  - Schwarte, Rudolf
A1  - Ringbeck, Thorsten
A1  - Grothof, Markus
A1  - Sluiter, A.
A1  - Frey, Jochen
A1  - Hildebrand, M.
A1  - David, Klaus
ED  - Korevaar, Eric John
T1  - Wireless LAN based on optical CDMA using a new high-speed correlation receiver (MSM-PMD)
T2  - Optical wireless communications IV : 21-22 August, 2001, Denver, USA. - (SPIE proceedings series ; 4530)
Y1  - 2001
SN  - 0-8194-4254-2
U6  - https://doi.org/10.1117/12.449808
N1  - Optical Wireless Communications Conference <4, 2001, Denver, Colo.>
SP  - 168
EP  - 178
PB  - SPIE
CY  - Bellingham, Wash.
ER  - 
TY  - JOUR
A1  - Eilmann, Britta
A1  - de Vries, Sven M. G.
A1  - den Ouden, Jan
A1  - Mohren, Godefridus M. J.
A1  - Sauren, Pascal
A1  - Sass-Klaassen, Ute G. W.
T1  - Origin matters! Difference in drought tolerance and productivity of coastal Douglas-fir (Pseudotsuga menziesii (Mirb.)) provenances
JF  - Forest Ecology and Management
Y1  - 2013
U6  - https://doi.org/doi:10.1016/j.foreco.2013.03.031
SN  - 1872-7042 (Online)
SN  - 0378-1127 (Print)
VL  - 2013
IS  - 302
SP  - 133
EP  - 143
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Kötter, Jens
A1  - Decker, Stefan
A1  - Detzler, Raphael
A1  - Schäfer, Jochen
A1  - Schmitz, Mark
A1  - Herrmann, Ulf
T1  - Cost Reduction of Solar Fields with HelioTrough Collector
Y1  - 2012
N1  - Concentration Solar Power and Chemical Energy Systemes : SolarPaces 2012, September 11 14 2002, Marrakesh, Morroco
PB  - FLAGSOL
CY  - Köln
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  - https://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  - CHAP
A1  - Pieronek, Lukas
A1  - Kleefeld, Andreas
ED  - Constanda, Christian
ED  - Harris, Paul
T1  - The Method of Fundamental Solutions for Computing Interior Transmission Eigenvalues of Inhomogeneous Media
T2  - Integral Methods in Science and Engineering: Analytic Treatment and Numerical Approximations
N2  - The method of fundamental solutions is applied to the approximate computation of interior transmission eigenvalues for a special class of inhomogeneous media in two dimensions. We give a short approximation analysis accompanied with numerical results that clearly prove practical convenience of our alternative approach.
Y1  - 2019
SN  - 978-3-030-16077-7
U6  - https://doi.org/10.1007/978-3-030-16077-7_28
SP  - 353
EP  - 365
PB  - Birkhäuser
CY  - Cham
ER  - 
TY  - JOUR
A1  - Biewendt, Marcel
A1  - Blaschke, Florian
A1  - Böhnert, Arno
T1  - A review of contemporary challenges in business culture
JF  - International Journal of Applied Research in Business and Management
N2  - The following article deals with the basic principles of intercultural management and possible improvements in terms of cultural, ethnic and gender diversification. The results are exemplarily applied to a bank located in Germany. The aim of this paper is to find out to what extent intercultural management could improve the productivity of Relatos-Bank in dealing with foreign employees or employees with a different cultural background. To achieve this goal, the authors con-duct a literature research. The main sources of information are books, journal articles and internet sources. It becomes clear that especially the different perceptions of different generations have a potential for conflict, which can be counteracted by applying presented scientific models. Equalizing the salaries of female and male employees and equalizing the rights and distribution of power could also be the key to becoming an open-minded, dynamic and fair organization that is pre-pared for the rapidly changing environment in which it operates.
Y1  - 2021
U6  - https://doi.org/10.51137/ijarbm.2021.2.1.1
SN  - 2700-8983
VL  - 2
IS  - 1
SP  - 1
EP  - 12
PB  - Wohllebe & Ross Publishing
CY  - Hamburg
ER  - 
TY  - CHAP
A1  - Nötzold, K.
A1  - Uphues, A.
A1  - Wegener, R.
A1  - Fink, K.
A1  - Bragard, Michael
A1  - Griessel, R.
A1  - Soter, S.
T1  - Inverter based test setup for LVRT verification of a full-scale 2 MW wind power converter
T2  - 15th European Conference on Power Electronics and Applications (EPE), 2013 : 2 - 6 Sept. 2013, Lille, France / [EPE Association; PELS, IEEE Power Electronics Society]
Y1  - 2013
SN  - 978-1-4799-0115-9 (Online-Ausg.)
U6  - https://doi.org/10.1109/EPE.2013.6634752
SP  - 1037
EP  - 1042
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Niendorf, Thoralf
A1  - Winter, Lukas
A1  - Frauenrath, Tobias
ED  - Millis, Richard
T1  - Electrocardiogram in an MRI environment: Clinical needs, practical considerations, safety implications, technical solutions and fFuture directions
T2  - Advances in Electrocardiograms - Methods and Analysis
Y1  - 2012
SN  - 978-953-307-923-3 (print)
SN  - 978-953-51-6762-4 (eBook)
U6  - https://doi.org/10.5772/24340
SP  - 309
EP  - 324
PB  - IntechOpen
CY  - London
ER  - 
TY  - CHAP
A1  - Ajona, J. I.
A1  - Herrmann, Ulf
A1  - Sperduto, F.
A1  - Farinha-Mendes, J.
ED  - Becker, Manfred
T1  - Main Achievements within ARDISS (Advanced Receiver for Direct Solar Steam Production in Parabolic Trough Solar Power Plants) Project
T2  - Components, tools, facilities and measurement techniques. - (Solar thermal concentrating technologies : proceedings of the 8th international symposium, October, 6 - 11, 1996, Köln, Germany ; Vol. 2)
Y1  - 1996
SN  - 3-7880-7616-X
SP  - 733
EP  - 754
PB  - Müller
CY  - Heidelberg
ER  - 
TY  - RPRT
A1  - Drescher, Hans Paul
T1  - Critical review of the 1. Stokes’ problem and consequences for mixed turbulent/laminar flow
N2  - The “1. Stokes’ problem”, the “suddenly accelerated flat wall”, is the oldest application of the Navier-Stokes equations. Stokes’ solution of the “problem” does not comply with the mathematical theorem of Cauchy and Kowalewskaya on the “Uniqueness and Existence” of solutions of partial differential equations and violates the physical theorem of minimum entropy production/dissipation of the Thermodynamics of Irreversible Processes. The result includes very high local shear stresses and dissipation rates. That is of special interest for the theory of turbulent and mixed turbulent/laminar flow. A textbook solution of the “1. Stokes Problem” is the Couette flow, which has a constant sheer stress along a linear profile. A consequence is that the Navier-Stokes equations do not describe any S-shaped part of a turbulent profile found in any turbulent Couette experiment. The paper surveys arguments referring to that statement, concerning the history of >150 years. Contrary to this there is always a Navier-Stokes solution near the wall, observed by a linear part of the Couette profile. There a turbulent description (e.g. by the logarithmic law-of-the-wall) fails completely. That is explained by the minimum dissipation requirement together with the Couette feature τ = const. The local co-existence of a turbulent zone and a laminar zone near the wall is stable and observed also at high Reynolds-Numbers.
Y1  - 2024
ER  - 
TY  - JOUR
A1  - Dallas, Shannon
A1  - Salphati, Laurent
A1  - Gomez-Zepeda, David
A1  - Wanek, Thomas
A1  - Chen, Liangfu
A1  - Chu, Xiaoyan
A1  - Kunta, Jeevan
A1  - Mezler, Mario
A1  - Menet, Marie-Claude
A1  - Chasseigneaux, Stephanie
A1  - Declèves, Xavier
A1  - Langer, Oliver
A1  - Pierre, Esaie
A1  - DiLoreto, Karen
A1  - Hoft, Carolin
A1  - Laplanche, Loic
A1  - Pang, Jodie
A1  - Pereira, Tony
A1  - Andonian, Clara
A1  - Simic, Damir
A1  - Rode, Anja
A1  - Yabut, Jocelyn
A1  - Zhang, Xiaolin
A1  - Scheer, Nico
T1  - Generation and Characterization of a Breast Cancer Resistance Protein Humanized Mouse Model
JF  - Molecular Pharmacology
N2  - Breast cancer resistance protein (BCRP) is expressed in various tissues, such as the gut, liver, kidney and blood brain barrier (BBB), where it mediates the unidirectional transport of substrates to the apical/luminal side of polarized cells. Thereby BCRP acts as an efflux pump, mediating the elimination or restricting the entry of endogenous compounds or xenobiotics into tissues and it plays important roles in drug disposition, efficacy and safety. Bcrp knockout mice (Bcrp−/−) have been used widely to study the role of this transporter in limiting intestinal absorption and brain penetration of substrate compounds. Here we describe the first generation and characterization of a mouse line humanized for BCRP (hBCRP), in which the mouse coding sequence from the start to stop codon was replaced with the corresponding human genomic region, such that the human transporter is expressed under control of the murine Bcrp promoter. We demonstrate robust human and loss of mouse BCRP/Bcrp mRNA and protein expression in the hBCRP mice and the absence of major compensatory changes in the expression of other genes involved in drug metabolism and disposition. Pharmacokinetic and brain distribution studies with several BCRP probe substrates confirmed the functional activity of the human transporter in these mice. Furthermore, we provide practical examples for the use of hBCRP mice to study drug-drug interactions (DDIs). The hBCRP mouse is a promising model to study the in vivo role of human BCRP in limiting absorption and BBB penetration of substrate compounds and to investigate clinically relevant DDIs involving BCRP.
Y1  - 2016
U6  - https://doi.org/10.1124/mol.115.102079
SN  - 1521-0111
VL  - 89
IS  - 5
SP  - 492
EP  - 504
PB  - ASPET
CY  - Bethesda, Md.
ER  - 
TY  - GEN
A1  - Duwe, A.
A1  - Schlegel, C.
A1  - Tippkötter, Nils
A1  - Ulber, Roland
T1  - Sequentielle Extraktion von Cellulose zur effizienten Nutzung der Stoffströme in der Holzbioraffinerie
T2  - Chemie Ingenieur Technik
N2  - In der Reihe der nachwachsenden Rohstoffe besitzt Holz als erneuerbare und umweltfreundliche Ressource ein großes Potenzial. Über 11 Mio. ha Holz, das laut der Fachagentur für nachwachsende Rohstoffe (FNR) auch für industrielle Zwecke genutzt werden kann, wuchsen im Jahr 2013 allein auf bundesdeutscher Fläche. 56,8 Mio. m³ jährlicher Holzeinschlag in den letzten zehn Jahren wurde zu knapp der Hälfte stofflich und der Rest energetisch verwertet. Im Rahmen dieser Arbeit konnte auf der Basis vom Holz der Buche, die nach Fichte und Kiefer die dritthäufigste Baumart in Deutschland ist und 15% der deutschen Waldfläche ausmacht, die Fraktionierung der polymeren Hauptbestandteile mit niedrigem energetischen Einsatz erreicht werden. Hierbei werden in einem nachgeschalteten Extraktionsprozess die beiden Komponenten Hemicellulose und Lignin in flüssiger Form von der finalen festen Cellulosefraktion abgetrennt. Die Extraktion der Hemicellulose erfolgt durch eine Liquid Hot Water (LHW)-Behandlung. Untersucht wird der katalytische Zusatz anorganischer Säuren wie H₃PO₄ und H₂SO₄. Im Hinblick auf die weitere Verwertung von Lignin zu aromatischen Synthesebausteinen kommt die Organosolv-Extraktion mit einem Ethanol/Wasser-Gemisch zum Einsatz. Von Vorteil ist die weitere Verwendung beider Stoffströme ohne Fällungsschritt und nachteiliger Verdünnung der Hemicellulose.
Y1  - 2014
U6  - https://doi.org/10.1002/cite.201450308
SN  - 0009-286X
SN  - 1522-2640 (eISSN)
N1  - ProcessNet-Jahrestagung 2014 und 31. DECHEMA-Jahrestagung der Biotechnologen, 30. September - 2. Oktober 2014, Eurogress Aachen
VL  - 86
IS  - 9
SP  - 1400
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Kleefeld, Andreas
A1  - Pieronek, J.
T1  - Elastic transmission eigenvalues and their computation via the method of fundamental solutions
JF  - Applicable Analysis
N2  - A stabilized version of the fundamental solution method to catch ill-conditioning effects is investigated with focus on the computation of complex-valued elastic interior transmission eigenvalues in two dimensions for homogeneous and isotropic media. Its algorithm can be implemented very shortly and adopts to many similar partial differential equation-based eigenproblems as long as the underlying fundamental solution function can be easily generated. We develop a corroborative approximation analysis which also implicates new basic results for transmission eigenfunctions and present some numerical examples which together prove successful feasibility of our eigenvalue recovery approach.
KW  - elastic scattering
KW  - method of fundamental solutions
KW  - Interior transmission eigenvalues
Y1  - 2020
U6  - https://doi.org/10.1080/00036811.2020.1721473
SN  - 1563-504X
VL  - 100
IS  - 16
SP  - 3445
EP  - 3462
PB  - Taylore & Francis
CY  - London
ER  - 
TY  - JOUR
A1  - Anik, Sabri
A1  - Frohberg, Martin G.
A1  - Kapoor, Madan Lal
T1  - Experiments and theoretical considerations on the solution of oxygen in binary metal alloys
JF  - Berichte der Bunsengesellschaft für physikalische Chemie
Y1  - 1983
SN  - 0005-9021
SN  - 0940-483X
VL  - 87
IS  - 12
SP  - 1201
EP  - 1204
ER  -