TY  - CHAP
A1  - Lindner, Marvin
A1  - Kolb, Andreas
A1  - Ringbeck, Thorsten
T1  - New insights into the calibration of ToF-sensors
T2  - 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition workshops : Anchorage, AK, 23 - 28 June 2008
N2  - Time-of-flight (ToF) sensors have become an alternative to conventional distance sensing techniques like laser scanners or image based stereo. ToF sensors provide full range distance information at high frame-rates and thus have a significant impact onto current research in areas like online object recognition, collision prevention or scene reconstruction. However, ToF cameras like the photonic mixer device (PMD) still exhibit a number of challenges regarding static and dynamic effects, e.g. systematic distance errors and motion artefacts, respectively. Sensor calibration techniques reducing static system errors have been proposed and show promising results. However, current calibration techniques in general need a large set of reference data in order to determine the corresponding parameters for the calibration model. This paper introduces a new calibration approach which combines different demodulation techniques for the ToF- camera 's reference signal. Examples show, that the resulting combined demodulation technique yields improved distance values based on only two required reference data sets.
Y1  - 2008
SN  - 978-1-4244-2339-2
SN  - 978-1-4244-2340-8
SP  - 1
EP  - 5
PB  - IEEE Service Center
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Horbach, Andreas
A1  - Duong, Minh Tuan
A1  - Staat, Manfred
T1  - Modelling of compressible and orthotropic surgical mesh implants based on optical deformation measurement
JF  - Journal of the mechanical behavior of biomedical materials
Y1  - 2017
U6  - https://doi.org/10.1016/j.jmbbm.2017.06.012
SN  - 1751-6161
VL  - 74
SP  - 400
EP  - 410
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Wegner, Lena
A1  - von Arx, Georg
A1  - Sass-Klaassen, Ute G. W.
A1  - Eilmann, Britta
T1  - ROXAS – an efficient and accurate tool to detect vessels in diffuse-porous species
JF  - IAWA Journal / International Association of Wood Anatomists
Y1  - 2013
U6  - https://doi.org/10.1163/22941932-00000034
SN  - 0928-1541 (Print)
SN  - 2294-1932 (Online)
VL  - 34
IS  - 4
SP  - 425
EP  - 432
PB  - Brill
CY  - Leiden
ER  - 
TY  - JOUR
A1  - Richter, Charlotte
A1  - Braunstein, Bjoern
A1  - Stäudle, Benjamin
A1  - Attias, Julia
A1  - Suess, Alexander
A1  - Weber, Tobias
A1  - Mileva, Katja N.
A1  - Rittweger, Joern
A1  - Green, David A.
A1  - Albracht, Kirsten
T1  - Gastrocnemius medialis contractile behavior is preserved during 30% body weight supported gait training
JF  - Frontiers in Sports and Active Living
N2  - Rehabilitative body weight supported gait training aims at restoring walking function as a key element in activities of daily living. Studies demonstrated reductions in muscle and joint forces, while kinematic gait patterns appear to be preserved with up to 30% weight support. However, the influence of body weight support on muscle architecture, with respect to fascicle and series elastic element behavior is unknown, despite this having potential clinical implications for gait retraining. Eight males (31.9 ± 4.7 years) walked at 75% of the speed at which they typically transition to running, with 0% and 30% body weight support on a lower-body positive pressure treadmill. Gastrocnemius medialis fascicle lengths and pennation angles were measured via ultrasonography. Additionally, joint kinematics were analyzed to determine gastrocnemius medialis muscle–tendon unit lengths, consisting of the muscle's contractile and series elastic elements. Series elastic element length was assessed using a muscle–tendon unit model. Depending on whether data were normally distributed, a paired t-test or Wilcoxon signed rank test was performed to determine if body weight supported walking had any effects on joint kinematics and fascicle–series elastic element behavior. Walking with 30% body weight support had no statistically significant effect on joint kinematics and peak series elastic element length. Furthermore, at the time when peak series elastic element length was achieved, and on average across the entire stance phase, muscle–tendon unit length, fascicle length, pennation angle, and fascicle velocity were unchanged with respect to body weight support. In accordance with unchanged gait kinematics, preservation of fascicle–series elastic element behavior was observed during walking with 30% body weight support, which suggests transferability of gait patterns to subsequent unsupported walking.
KW  - AlterG
KW  - rehabilitation
KW  - gait
KW  - walking
KW  - ultrasound imaging
KW  - series elastic element behavior
KW  - muscle fascicle behavior
KW  - unloading
Y1  - 2021
U6  - https://doi.org/10.3389/fspor.2020.614559
SN  - 2624-9367
VL  - 2021
IS  - 2
PB  - Frontiers
CY  - Lausanne
ER  - 
TY  - JOUR
A1  - Bernecker, Andreas
A1  - Klier, Julia
A1  - Stern, Sebastian
A1  - Thiel, Lea
T1  - Sustaining high performance beyond public-sector pilot projects.
Y1  - 2018
IS  - September 2018
ER  - 
TY  - CHAP
A1  - Hammer, Andreas
A1  - Vieth, Matthias
A1  - Maier, Frank
T1  - Co-Plot as a new multivariate analysis method for operations management research?
T2  - Papers of the 12th International EurOMA Conference on Operational and Global Competitiveness, Budapest, Hungary, June 19-22, 2005 / Editor: Krisztina Demeter
Y1  - 2005
SN  - 963-218-455-6
SP  - 1007
EP  - 1016
ER  - 
TY  - CHAP
A1  - Bragard, Michael
A1  - Soltau, N.
A1  - De Doncker, R. W.
A1  - Schmiegel, A.
T1  - Design and implementation of a 5 kW photovoltaic system with li-ion battery and additional DC-DC converter
T2  - 2010 IEEE Energy Conversion Congress and Exposition (ECCE 2010) : Atlanta, Georgia, USA, 12 - 16 September 2010 / [sponsored by the IEEE Power Electronics and Industry Applications Societies]
Y1  - 2010
SN  - 978-1-4244-5286-6 (Print)
SN  - 978-1-4244-5287-3 (Online)
U6  - https://doi.org/10.1109/ECCE.2010.5618220
SP  - 2944
EP  - 2949
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Eilmann, Britta
A1  - Sterck, Frank J.
A1  - Wegner, L.
A1  - de Vries, Sven M. G.
A1  - von Arx, G.
A1  - Mohren, Godefridus M. J.
A1  - den Ouden, Jan
A1  - Sass-Klaassen, Ute G. W.
T1  - Wood structural differences between northern and southern beech provenances growing at a moderate site
JF  - Tree Physiology
Y1  - 2014
U6  - https://doi.org/10.1093/treephys/tpu069
SN  - 1758-4469  (Online)
SN  - 0829-318X (Print)
VL  - 34
IS  - 8
SP  - 882
EP  - 893
PB  - Oxford University Press
CY  - Oxford
ER  - 
TY  - CHAP
A1  - Boonzaaijer, Karel
A1  - Helmig, Ilka
T1  - 2D Room : cardboard installation
T2  - Papercraft [1] : design and art with paper
KW  - Papierkunst
Y1  - 2009
SN  - 978-3-89955-251-5
SP  - 206
PB  - Gestalten Verlag
CY  - Berlin
ER  - 
TY  - RPRT
A1  - Vieth, Matthias
A1  - Hammer, A.
A1  - Maier, F.
T1  - A critical analysis of the co-plot method
T2  - International University in Germany, School of Business Administration / Working paper
Y1  - 2005
IS  - 32
PB  - School of Business Administration, Intern. Univ. in Germany
CY  - Bruchsal
ER  - 
TY  - CHAP
A1  - Blum, Yannik
A1  - Albanna, Walid
A1  - Benninghaus, Anne
A1  - Kotliar, Konstantin
ED  - Staat, Manfred
ED  - Erni, Daniel
T1  - Vasomotion in retinal vessels of patients presenting post hemorrhagic hydrocephalus following subarachnoid hemorrhage
T2  - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
N2  - Clearance of blood components and fluid drainage play a crucial role in subarachnoid hemorrhage (SAH) and post hemorrhagic hydrocephalus (PHH). With the involvement of interstitial fluid (ISF) and cerebrospinal fluid (CSF), two pathways for the clearance of fluid and solutes in the brain are proposed. Starting at the level of capillaries, flow of ISF follows along the basement membranes in the walls of cerebral arteries out of the parenchyma to drain into the lymphatics and CSF [1]–[3]. Conversely, it is shown that CSF enters the parenchyma between glial and pial basement membranes of penetrating arteries [4]–[6]. Nevertheless, the involved structures and the contribution of either flow pathway to fluid balance between the subarachnoid space and interstitial space remains controversial. Low frequency oscillations in vascular tone are referred to as vasomotion and corresponding vasomotion waves are modeled as the driving force for flow of ISF out of the parenchyma [7]. Retinal vessel analysis (RVA) allows non-invasive measurement of retinal vessel vasomotion with respect to diameter changes [8]. Thus, the aim of the study is to investigate vasomotion in RVA signals of SAH and PHH patients.
Y1  - 2019
SN  - 978-3-940402-22-6
U6  - https://doi.org/10.17185/duepublico/48750
SP  - 38
EP  - 39
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - JOUR
A1  - Duong, Minh Tuan
A1  - Nguyen, Nhu Huynh
A1  - Staat, Manfred
T1  - Physical response of hyperelastic models for composite materials and soft tissues
JF  - Asia pacific journal on computational engineering
Y1  - 2015
U6  - https://doi.org/10.1186/s40540-015-0015-x
SN  - 2196-1166
VL  - 2
IS  - 3 (December 2015)
SP  - 1
EP  - 18
ER  - 
TY  - CHAP
A1  - Fabo, Sabine
ED  - Kacunko, Slavko
T1  - Portrait of the artist as a spoilsport : Marcel Odenbach's concept of detachment
T2  - Take it or leave it : Marcel Odenbach - anthology of texts and videos. - (eva - edition video art ; 2)
Y1  - 2013
SN  - 978-3-8325-3386-1
SP  - 11
EP  - 29
PB  - Logos
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Droop, Philipp
A1  - Chen, Shaohuang
A1  - Radford, Melissa J.
A1  - Paulßen, Elisabeth
A1  - Gates, Byron D.
A1  - Reilly, Raymond M.
A1  - Radchenko, Valery
A1  - Hoehr, Cornelia
T1  - Synthesis of 197m/gHg labelled gold nanoparticles for targeted radionuclide therapy
JF  - Radiochimica Acta
N2  - Meitner-Auger-electron emitters have a promising potential for targeted radionuclide therapy of cancer because of their short range and the high linear energy transfer of Meitner-Auger-electrons (MAE). One promising MAE candidate is 197m/gHg with its half-life of 23.8 h and 64.1 h, respectively, and high MAE yield. Gold nanoparticles (AuNPs) that are labelled with 197m/gHg could be a helpful tool for radiation treatment of glioblastoma multiforme when infused into the surgical cavity after resection to prevent recurrence. To produce such AuNPs, 197m/gHg was embedded into pristine AuNPs. Two different syntheses were tested starting from irradiated gold containing trace amounts of 197m/gHg. When sodium citrate was used as reducing agent, no 197m/gHg labelled AuNPs were formed, but with tannic acid, 197m/gHg labeled AuNPs were produced. The method was optimized by neutralizing the pH (pH = 7) of the Au/197m/gHg solution, which led to labelled AuNPs with a size of 12.3 ± 2.0 nm as measured by transmission electron microscopy. The labelled AuNPs had a concentration of 50 μg (gold)/mL with an activity of 151 ± 93 kBq/mL (197gHg, time corrected to the end of bombardment).
KW  - 197m/gHg
KW  - Gold nanoparticle (AuNP)
KW  - Meitner-Auger-electron (MAE)
KW  - Targeted radionuclide therapy (TRT)
Y1  - 2023
U6  - https://doi.org/10.1515/ract-2023-0144
SN  - 2193-3405
VL  - 111
IS  - 10
SP  - 773
EP  - 779
PB  - De Gruyter
CY  - Berlin [u.a.]
ER  - 
TY  - CHAP
A1  - Bragard, Michael
A1  - Conrad, M.
A1  - De Doncker, R. W.
T1  - The integrated emitter turn-off thyristor (IETO) : an innovative thyristor based high power semiconductor device using MOS assisted turn-off
T2  - 2010 IEEE Energy Conversion Congress and Exposition (ECCE 2010) : Atlanta, Georgia, USA, 12 - 16 September 2010 / [sponsored by the IEEE Power Electronics and Industry Applications Societies]
Y1  - 2010
SN  - 978-1-4244-5286-6 (Print)
SN  - 978-1-4244-5287-3 (Online)
U6  - https://doi.org/10.1109/ECCE.2010.5618410
SP  - 4551
EP  - 4557
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Blake, D.
A1  - Moens, L.
A1  - Hale, M.-J.
A1  - Price, Henry
A1  - Keaney, David W.
A1  - Herrmann, Ulf
ED  - Steinfeld, Aldo
T1  - New heat transfer and storage fluids for parabolic trough solar thermal electric plants
T2  - Proceedings of the 11th SolarPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies : September 4 - 6, 2002, Zurich, Switzerland / Paul Scherrer Institut, PSI; ETH, Eidgenössische Technische Hochschule Zürich
Y1  - 2002
SN  - 3-9521409-3-7
SP  - 63
EP  - 66
PB  - Paul Scherrer Inst.
CY  - Villingen
ER  - 
TY  - JOUR
A1  - Feichtinger, Linda M.
A1  - Eilmann, Britta
A1  - Buchmann, Nina
A1  - Rigling, Andreas
T1  - Trait-specific responses of Scots pine to irrigation on a short vs long time scale
JF  - Tree Physiology
Y1  - 2015
U6  - https://doi.org/10.1093/treephys/tpu114
SN  - 1758-4469  (Online)
SN  - 0829-318X (Print)
N1  - Ab 12 Monaten nach Veröffentlichung kostenfrei zugänglich.
VL  - 35
IS  - 00
SP  - 1
EP  - 12
PB  - Heron
CY  - Victoria, BC
ER  - 
TY  - CHAP
A1  - Kelly, Bruce
A1  - Herrmann, Ulf
A1  - Hale, M.-J.
T1  - Optimization Studies for Integrated Solar Combined Cycle Systems
T2  - Solar engineering 2001 : proceedings of the International Solar Energy Conference ; presented at the 2001 International Solar Energy Conference, a part of Forum 2001 - Solar energy: the power to choose, April 21 - 25, 2001, Washington, D.C.
Y1  - 2001
SN  - 0-7918-1670-2
N1  - International Solar Energy Conference <Washington, D.C.>
SP  - 393
EP  - 398
PB  - ASME
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Valero, Daniel
A1  - Bung, Daniel Bernhard
A1  - Crookston, B.M.
T1  - Energy dissipation of a Type III basin under design and adverse conditions for stepped and smooth spillways
JF  - Journal of Hydraulic Engineering
N2  - New information regarding the influence of a stepped chute on the hydraulic performance of the United States Bureau of Reclamation (Reclamation) Type III hydraulic jump stilling basin is presented for design (steady) and adverse (decreasing tailwater) conditions. Using published experimental data and computational fluid dynamics (CFD) models, this paper presents a detailed comparison between smooth-chute and stepped-chute configurations for chute slopes of 0.8H:1V and 4H:1V and Froude numbers (F) ranging from 3.1 to 9.5 for a Type III basin designed for F = 8. For both stepped and smooth chutes, the relative role of each basin element was quantified, up to the most hydraulic extreme case of jump sweep-out. It was found that, relative to a smooth chute, the turbulence generated by a stepped chute causes a higher maximum velocity decay within the stilling basin, which represents an enhancement of the Type III basin’s performance but also a change in the relative role of the basin elements. Results provide insight into the ability of the CFD models [unsteady Reynolds-averaged Navier-Stokes (RANS) equations with renormalization group (RNG) k-ϵ turbulence model and volume-of-fluid (VOF) for free surface tracking] to predict the transient basin flow structure and velocity profiles. Type III basins can perform adequately with a stepped chute despite the effects steps have on the relative role of each basin element. It is concluded that the classic Type III basin design, based upon methodology by reclamation specific to smooth chutes, can be hydraulically improved for the case of stepped chutes for design and adverse flow conditions using the information presented herein.
Y1  - 2018
U6  - https://doi.org/10.1061/(ASCE)HY.1943-7900.0001482
SN  - 0733-9429
N1  - Article number 04018036
VL  - 144
IS  - 7
PB  - ASCE
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Teumer, T.
A1  - Capitain, C.
A1  - Ross-Jones, J.
A1  - Tippkötter, Nils
A1  - Rädle, M.
A1  - Methner, F.-J.
T1  - In-line Haze Monitoring Using a Spectrally Resolved Back Scattering Sensor
JF  - BrewingScience
N2  - In the present work an optical sensor in combination with a spectrally resolved detection device for in-line particle-size-monitoring for quality control in beer production is presented. The principle relies on the size and wavelength dependent backscatter of growing particles in fluids. Measured interference structures of backscattered light are compared with calculated theoretical values, based on Mie-Theory, and fitted with a linear least square method to obtain particle size distributions. For this purpose, a broadband light source in combination with a process-CCD-spectrometer (charge ? coupled device spectrometer) and process adapted fiber optics are used. The goal is the development of an easy and flexible measurement device for in-line-monitoring of particle size. The presented device can be directly installed in product fill tubes or vessels, follows CIP- (cleaning in place) and removes the need of sample taking. A proof of concept and preliminary results, measuring protein precipitation, are presented.
Y1  - 2018
SN  - 1613-2041
VL  - 71
IS  - 5/6
SP  - 49
EP  - 55
PB  - Fachverlag Hans Carl
CY  - Nürnberg
ER  -