@article{LagemaatVosMaasetal.2014,
  author    = {Lagemaat, Miriam W. and Vos, Eline K. and Maas, Marnix C. and Bitz, Andreas and Orzada, Stephan and Uden, Mark J. van and Kobus, Thiele and Heerschap, Arend and Scheenen, Tom W. J.},
  title     = {Phosphorus magnetic resonance spectroscopic imaging at 7 T in patients with prostate cancer},
  series = {Investigative Radiology},
  volume    = {49},
  journal   = {Investigative Radiology},
  number    = {5},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {Philadelphia, Pa.},
  issn      = {1536-0210},
  doi       = {10.1097/RLI.0000000000000012},
  pages     = {363 -- 372},
  year      = {2014},
  abstract  = {Objectives The aim of this study was to identify characteristics of phosphorus (³¹P) spectra of the human prostate and to investigate changes of individual phospholipid metabolites in prostate cancer through in vivo ³¹P magnetic resonance spectroscopic imaging (MRSI) at 7 T. Materials and Methods In this institutional review board-approved study, 15 patients with biopsy-proven prostate cancer underwent T₂-weighted magnetic resonance imaging and 3-dimensional ³¹P MRSI at 7 T. Voxels were selected at the tumor location, in normal-appearing peripheral zone tissue, normal-appearing transition zone tissue, and in the base of the prostate close to the seminal vesicles. Phosphorus metabolite ratios were determined and compared between tissue types. Results Signals of phosphoethanolamine (PE) and phosphocholine (PC) were present and well resolved in most ³¹P spectra in the prostate. Glycerophosphocholine signals were observable in 43\% of the voxels in malignant tissue, but in only 10\% of the voxels in normal-appearing tissue away from the seminal vesicles. In many spectra, independent of tissue type, 2 peaks resonated in the chemical shift range of inorganic phosphate, possibly representing 2 separate pH compartments. The PC/PE ratio in the seminal vesicles was highly elevated compared with the prostate in 5 patients. A considerable overlap of ³¹P metabolite ratios was found between prostate cancer and normal-appearing prostate tissue, preventing direct discrimination of these tissues. The only 2 patients with high Gleason scores tumors (≥4+5) presented with high PC and glycerophosphocholine levels in their cancer lesions. Conclusions Phosphorus MRSI at 7 T shows distinct features of phospholipid metabolites in the prostate gland and its surrounding structures. In this exploratory study, no differences in ³¹P metabolite ratios were observed between prostate cancer and normal-appearing prostate tissue possibly because of the partial volume effects of small tumor foci in large MRSI voxels.},
  language  = {en}
}
@article{MaasVosLagemaatetal.2014,
  author    = {Maas, Marnix C. and Vos, Eline K. and Lagemaat, Miriam W. and Bitz, Andreas and Orzada, Stephan and Kobus, Thiele and Kraff, Oliver and Maderwald, Stefan and Ladd, Mark E. and Scheenen, Tom W. J.},
  title     = {Feasibility of T₂-weighted turbo spin echo imaging of the human prostate at 7 tesla},
  series = {Magnetic Resonance in Medicine},
  volume    = {71},
  journal   = {Magnetic Resonance in Medicine},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1522-2594},
  doi       = {10.1002/mrm.24818},
  pages     = {1711 -- 1719},
  year      = {2014},
  abstract  = {Purpose To demonstrate that high quality T₂-weighted (T2w) turbo spin-echo (TSE) imaging of the complete prostate can be achieved routinely and within safety limits at 7 T, using an external transceive body array coil only. Methods Nine healthy volunteers and 12 prostate cancer patients were scanned on a 7 T whole-body system. Preparation consisted of B₀ and radiofrequency shimming and localized flip angle calibration. T₁ and T₂ relaxation times were measured and used to define the T2w-TSE protocol. T2w imaging was performed using a TSE sequence (pulse repetition time/echo time 3000-3640/71 ms) with prolonged excitation and refocusing pulses to reduce specific absorption rate. Results High quality T2w TSE imaging was performed in less than 2 min in all subjects. Tumors of patients with gold-standard tumor localization (MR-guided biopsy or prostatectomy) were well visualized on 7 T imaging (n = 3). The number of consecutive slices achievable within a 10-g averaged specific absorption rate limit of 10 W/kg was ≥28 in all subjects, sufficient for full prostate coverage with 3-mm slices in at least one direction. Conclusion High quality T2w TSE prostate imaging can be performed routinely and within specific absorption rate limits at 7 T with an external transceive body array.},
  language  = {en}
}
@article{Tran2014,
  author    = {Tran, Duc Hung},
  title     = {Multiple corporate governance attributes and the cost of capital - Evidence from Germany},
  series = {The British Accounting Review},
  volume    = {46},
  journal   = {The British Accounting Review},
  number    = {2},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0890-8389},
  doi       = {https://doi.org/10.1016/j.bar.2014.02.003},
  pages     = {179 -- 197},
  year      = {2014},
  abstract  = {This paper investigates the extent to which corporate governance affects the cost of debt and equity capital of German exchange-listed companies. I examine corporate governance along three dimensions: financial information quality, ownership structure and board structure. The results suggest that firms with high levels of financial transparency and bonus compensations face lower cost of equity. In addition, block ownership is negatively related to firms' cost of equity when the blockholders are other firms, managers or founding-family members. Consistent with the conjecture that agency costs increase with firm size, I find significant cost of debt effects only in the largest German companies. Here, the creditors demand lower cost of debt from firms with block ownerships held by corporations or banks. My findings demonstrate that a uniform set of governance attributes is unlikely to satisfy suppliers of debt and equity capital equally.},
  language  = {en}
}
@inproceedings{Behbahani2014,
  author    = {Behbahani, Mehdi},
  title     = {An Experimental Study of Thrombocyte Reactions in Response to Biomaterial Surfaces and Varying Shear Stress},
  series = {Proceedings of the International Conference on Biomedical Engineering and Systems Prague, Czech Republic, August 14-15, 2014},
  booktitle = {Proceedings of the International Conference on Biomedical Engineering and Systems Prague, Czech Republic, August 14-15, 2014},
  pages     = {Paper 125},
  year      = {2014},
  language  = {en}
}
@article{YangKriechbaumerAlbrachtetal.2014,
  author    = {Yang, Peng-Fei and Kriechbaumer, Andreas and Albracht, Kirsten and Sanno, Maximilian and Ganse, Bergita and Koy, Timmo and Shang, Peng and br{\"u}ggemann, Gert-Peter and M{\"u}ller, Lars Peter and Rittweger, J{\"o}rn},
  title     = {A novel optical approach for assessing in vivo bone segment deformation and its application in muscle-bone relationship studies in humans},
  series = {Journal of Orthopaedic Translation},
  volume    = {2},
  journal   = {Journal of Orthopaedic Translation},
  number    = {4},
  publisher = {Elsevier},
  address   = {Singapore},
  issn      = {2214-0328},
  doi       = {10.1016/j.jot.2014.07.078},
  pages     = {238 -- 238},
  year      = {2014},
  language  = {en}
}
@inproceedings{EdipGarevskiButenwegetal.2014,
  author    = {Edip, Kemal and Garevski, Mihail and Butenweg, Christoph and Sheshov, Vlatko and Bojadjieva, Julijana and Gjorgjiev, Igor},
  title     = {New coupled finite-infinite element approach for wave propagation simulation of unbounded soil media},
  series = {2nd European Conference on Earthquake Engineering and Seismology 2014 (2nd ECEES) : joint event of the 15th European Conference on Earthquake Engineering and the 34th General Assembly of the European Seismological Commission : Istanbul, Turkey, 25-29 August 2014 / European Association for Earthquake Engineering (EAEE) ; Vol. 2},
  booktitle = {2nd European Conference on Earthquake Engineering and Seismology 2014 (2nd ECEES) : joint event of the 15th European Conference on Earthquake Engineering and the 34th General Assembly of the European Seismological Commission : Istanbul, Turkey, 25-29 August 2014 / European Association for Earthquake Engineering (EAEE) ; Vol. 2},
  publisher = {Curran Associates, Inc.},
  address   = {Red Hook, NY},
  organization    = {European Conference on Earthquake Engineering and Seismology <2, 2014, Istanbul>},
  isbn      = {978-1-5108-1021-1},
  pages     = {1556 -- 1561},
  year      = {2014},
  language  = {en}
}
@inproceedings{DalguerChurilovButenwegetal.2014,
  author    = {Dalguer, Luis A. and Churilov, Sergey and Butenweg, Christoph and Renault, Philippe and Hyun, An Jun},
  title     = {Dynamic analysis of a reinforced concrete electrical nuclear building of SMART 2013 project subjected to earthquake excitation using ABAQUS},
  series = {Workshop SMART2013 : Paris, France, November 25th - 27th, 2014},
  booktitle = {Workshop SMART2013 : Paris, France, November 25th - 27th, 2014},
  organization    = {Workshop SMART2013 <2014, Paris>},
  pages     = {1 -- 12},
  year      = {2014},
  language  = {en}
}
@inproceedings{AltayButenwegKlinkeletal.2014,
  author    = {Altay, Okyay and Butenweg, Christoph and Klinkel, Sven and Taddei, Francesca},
  title     = {Vibration mitigation of wind turbine towers by tuned liquid column dampers},
  series = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)},
  booktitle = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)},
  address   = {Porto},
  organization    = {European Conference on Structural Dynamics, EURODYN <9, 2014, Porto>},
  isbn      = {978-972-752-165-4},
  pages     = {1531 -- 1538},
  year      = {2014},
  language  = {en}
}
@inproceedings{EdipGarevskiButenwegetal.2014,
  author    = {Edip, Kemal and Garevski, Mihail and Butenweg, Christoph and Sesov, Vlatko and Bojadjieva, Julijana and Gjorgjiev, Igor},
  title     = {Boundary effects on seismic analysis of multi-storey frames considering soil structure interaction phenomenon},
  series = {Seismic design of industrial facilities : proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference) ; [Aachen, 26. - 27. September 2013] / Chair of Structural Statics and Dynamics, RWTH Aachen. Sven Klinkel ..., ed},
  booktitle = {Seismic design of industrial facilities : proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference) ; [Aachen, 26. - 27. September 2013] / Chair of Structural Statics and Dynamics, RWTH Aachen. Sven Klinkel ..., ed},
  publisher = {Springer Vieweg},
  address   = {Wiesbaden},
  organization    = {International Conference on Seismic Design of Industrial Facilities <2013, Aachen>},
  isbn      = {978-3-658-02809-1 (Print) ; 978-3-658-02810-7},
  doi       = {10.1007/978-3-658-02810-7_47},
  pages     = {569 -- 576},
  year      = {2014},
  language  = {en}
}
@inproceedings{GiresiniButenwegAndreinietal.2014,
  author    = {Giresini, Linda and Butenweg, Christoph and Andreini, M. and De Falco, A. and Sassu, M.},
  title     = {Numerical calibration of a macro-element for vaultes system in historic churches},
  series = {9th International Conference on Structural Analyses of Historical Conctruction, 14 - 17 October, 2014, Mexico City},
  booktitle = {9th International Conference on Structural Analyses of Historical Conctruction, 14 - 17 October, 2014, Mexico City},
  organization    = {International Conference on Structural Analyses of Historical Conctructions <9, 2014, Mexico City>},
  pages     = {1 -- 12},
  year      = {2014},
  language  = {en}
}
@inproceedings{RosinButenweg2014,
  author    = {Rosin, Julia and Butenweg, Christoph},
  title     = {Seismic isolation of cylindrical liquid storage tanks},
  series = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)},
  booktitle = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)},
  address   = {Porto},
  organization    = {European Conference on Structural Dynamics, EURODYN <9, 2014, Porto>},
  isbn      = {978-972-752-165-4},
  pages     = {3145 -- 3152},
  year      = {2014},
  language  = {en}
}
@incollection{AltayTaddeiButenwegetal.2014,
  author    = {Altay, Okyay and Taddei, Francesca and Butenweg, Christoph and Klinkel, Sven},
  title     = {Vibration mitigation of wind turbine towers with tuned mass dampers},
  series = {Wind turbine control and monitoring. (Advances in industrial control)},
  booktitle = {Wind turbine control and monitoring. (Advances in industrial control)},
  publisher = {Springer},
  address   = {Cham ; Heidelberg ; New York ; Dordrecht ; London},
  isbn      = {978-3-319-08412-1 (Print) ; 978-3-319-08413-8 (E-Book)},
  doi       = {10.1007/978-3-319-08413-8_12},
  pages     = {337 -- 373},
  year      = {2014},
  abstract  = {Because of its minor environmental impact, electricity generation using wind power is getting remarkable. The further growth of the wind industry depends on technological solutions to the challenges in production and construction of the turbines. Wind turbine tower vibrations, which limit power generation efficiency and cause fatigue problems with high maintenance costs, count as one of the main structural difficulties in the wind energy sector. To mitigate tower vibrations auxiliary measures are necessary. The effectiveness of tuned mass damper is verified by means of a numeric study on a 5 MW onshore reference wind turbine. Hereby, also seismic-induced vibrations and soil-structure interaction are considered. Acquired results show that tuned mass damper can effectively reduce resonant tower vibrations and improve the fatigue life of wind turbines. This chapter is also concerned with tuned liquid column damper and a semiactive application of it. Due to its geometric versatility and low prime costs, tuned liquid column dampers are a good alternative to other damping measures, in particular for slender structures like wind turbines.},
  language  = {en}
}
@book{KlinkelButenwegLinetal.2014,
  author    = {Klinkel, Sven and Butenweg, Christoph and Lin, Gao and Holtschoppen, Britta},
  title     = {Seismic design of industrial facilities : Proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF) / Sven Klinkel, Christoph Butenweg, Gao Lin, Britta Holtschoppen Editors},
  publisher = {Springer Vieweg},
  address   = {Wiesbaden},
  organization    = {International Conference on Seismic Design of Industrial Facilities <Aachen, 2013>},
  isbn      = {978-3-658-02809-1 (Print) ; 978-365-80281-0-7 (E-Book)},
  doi       = {10.1007/978-3-658-02810-7},
  pages     = {XIII, 450 S.},
  year      = {2014},
  language  = {en}
}
@techreport{ButenwegKaiser2014,
  author    = {Butenweg, Christoph and Kaiser, Diethelm},
  title     = {Seismic hazard harmonisation in Europe (SHARE) : DGEB-Workshop in Frankfurt a.M., Germany, 27. May 2014 / Christoph Butenweg, Diethelm Kaiser (editors)},
  publisher = {DGEB},
  address   = {Aachen},
  organization    = {Deutsche Gesellschaft f{\"u}r Erdbeben-Ingenieurwesen und Baudynamik},
  isbn      = {3-930108-12-7},
  pages     = {V, 117 S.},
  year      = {2014},
  language  = {en}
}
@article{SchroeterHoffmannVoigtetal.2014,
  author    = {Schroeter, Rebecca and Hoffmann, Tamara and Voigt, Birgit and Meyer, Hanna and Bleisteiner, Monika and Muntel, Jan and J{\"u}rgen, Britta and Albrecht, Dirk and Becher, D{\"o}rte and Lalk, Michael and Evers, Stefan and Bongaerts, Johannes and Maurer, Karl-Heinz and Putzer, Harald and Hecker, Michael and Schweder, Thomas and Bremer, Erhard},
  title     = {Stress responses of the industrial workhorse Bacillus licheniformis to osmotic challenges},
  series = {PLoS ONE},
  volume    = {8},
  journal   = {PLoS ONE},
  number    = {11},
  publisher = {PLOS},
  address   = {San Francisco},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0080956},
  pages     = {e80956},
  year      = {2014},
  abstract  = {The Gram-positive endospore-forming bacterium Bacillus licheniformis can be found widely in nature and it is exploited in industrial processes for the manufacturing of antibiotics, specialty chemicals, and enzymes. Both in its varied natural habitats and in industrial settings, B. licheniformis cells will be exposed to increases in the external osmolarity, conditions that trigger water efflux, impair turgor, cause the cessation of growth, and negatively affect the productivity of cell factories in biotechnological processes. We have taken here both systems-wide and targeted physiological approaches to unravel the core of the osmostress responses of B. licheniformis. Cells were suddenly subjected to an osmotic upshift of considerable magnitude (with 1 M NaCl), and their transcriptional profile was then recorded in a time-resolved fashion on a genome-wide scale. A bioinformatics cluster analysis was used to group the osmotically up-regulated genes into categories that are functionally associated with the synthesis and import of osmostress-relieving compounds (compatible solutes), the SigB-controlled general stress response, and genes whose functional annotation suggests that salt stress triggers secondary oxidative stress responses in B. licheniformis. The data set focusing on the transcriptional profile of B. licheniformis was enriched by proteomics aimed at identifying those proteins that were accumulated by the cells through increased biosynthesis in response to osmotic stress. Furthermore, these global approaches were augmented by a set of experiments that addressed the synthesis of the compatible solutes proline and glycine betaine and assessed the growth-enhancing effects of various osmoprotectants. Combined, our data provide a blueprint of the cellular adjustment processes of B. licheniformis to both sudden and sustained osmotic stress.},
  language  = {en}
}
@article{HandtkeVollandMethlingetal.2014,
  author    = {Handtke, Stefan and Volland, Sonja and Methling, Karen and Albrecht, Dirk and Becher, D{\"o}rte and Nehls, Jenny and Bongaerts, Johannes and Maurer, Karl-Heinz and Lalk, Michael and Liesegang, Heiko and Voigt, Birgit and Daniel, Rolf and Hecker, Michael},
  title     = {Cell physiology of the biotechnological relevant bacterium Bacillus pumilus - An omics-based approach},
  series = {Journal of Biotechnology},
  journal   = {Journal of Biotechnology},
  number    = {192(A)},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-4863 (E-Journal); 0168-1656 (Print)},
  doi       = {10.1016/j.jbiotec.2014.08.028},
  pages     = {204 -- 214},
  year      = {2014},
  abstract  = {Members of the species Bacillus pumilus get more and more in focus of the biotechnological industry as potential new production strains. Based on exoproteome analysis, B. pumilus strain Jo2, possessing a high secretion capability, was chosen for an omics-based investigation. The proteome and metabolome of B. pumilus cells growing either in minimal or complex medium was analyzed. In total, 1542 proteins were identified in growing B. pumilus cells, among them 1182 cytosolic proteins, 297 membrane and lipoproteins and 63 secreted proteins. This accounts for about 43\% of the 3616 proteins encoded in the B. pumilus Jo2 genome sequence. By using GC-MS, IP-LC/MS and H NMR methods numerous metabolites were analyzed and assigned to reconstructed metabolic pathways. In the genome sequence a functional secretion system including the components of the Sec- and Tat-secretion machinery was found. Analysis of the exoproteome revealed secretion of about 70 proteins with predicted secretion signals. In addition, selected production-relevant genome features such as restriction modification systems and NRPS clusters of B. pumilus Jo2 are discussed.},
  language  = {en}
}
@inproceedings{ButenwegRajan2014,
  author    = {Butenweg, Christoph and Rajan, Sreelakshmy},
  title     = {Design and construction techniques of AAC masonry buildings in earthquakes regions},
  series = {10 years Xella research in Building Materials : Symposium on the 4th and 5th of September, Potsdam 2014},
  booktitle = {10 years Xella research in Building Materials : Symposium on the 4th and 5th of September, Potsdam 2014},
  year      = {2014},
  language  = {en}
}
@article{KluczkaEcksteinAlexopoulosetal.2014,
  author    = {Kluczka, Sven and Eckstein, Julian and Alexopoulos, Spiros and Vaeßen, Christiane and Roeb, Martin},
  title     = {Process simulation for solar steam and dry reforming},
  series = {Energy procedia : Proceedings of the SolarPACES 2013 International Conference},
  volume    = {49},
  journal   = {Energy procedia : Proceedings of the SolarPACES 2013 International Conference},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1876-6102 (E-Journal)},
  doi       = {10.1016/j.egypro.2014.03.092},
  pages     = {850 -- 859},
  year      = {2014},
  abstract  = {In co-operation with the German Aerospace Center, the Solar-Institut J{\"u}lich has been analyzing the different technologies that are available for methanol production from CO2 using solar energy. The aim of the project is to extract CO2 from industrial exhaust gases or directly from the atmosphere to recycle it by use of solar energy. Part of the study was the modeling and simulating of a methane reformer for the production of synthesis gas, which can be operated by solar or hybrid heat sources. The reformer has been simplified in such a way that the model is accurate and enables fast calculations. The developed pseudo-homogeneous one- dimensional model can be regarded as a kind of counter-current heat exchanger and is able to incorporate a steam reforming reaction as well as a dry reforming reaction.},
  language  = {en}
}
@article{SchusserBaeckerKrischeretal.2014,
  author    = {Schusser, Sebastian and B{\"a}cker, Matthias and Krischer, M. and Wenzel, L. and Leinhos, Marcel and Poghossian, Arshak and Biselli, Manfred and Wagner, P. and Sch{\"o}ning, Michael Josef},
  title     = {Enzymatically catalyzed degradation of biodegradable polymers investigated by means of a semiconductor-based field-effect sensor},
  series = {Procedia Engineering},
  volume    = {87},
  journal   = {Procedia Engineering},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1877-7058},
  doi       = {10.1016/j.proeng.2014.11.689},
  pages     = {1314 -- 1317},
  year      = {2014},
  abstract  = {A semiconductor field-effect device has been used for an enzymatically catalyzed degradation of biopolymers for the first time. This novel technique is capable to monitor the degradation process of multiple samples in situ and in real-time. As model system, the degradation of the biopolymer poly(D, L-lactic acid) has been monitored in the degradation medium containing the enzyme lipase from Rhizomucor miehei. The obtained results demonstrate the potential of capacitive field-effect sensors for degradation studies of biodegradable polymers.},
  language  = {en}
}
@inproceedings{JungStaatMueller2014,
  author    = {Jung, Alexander and Staat, Manfred and M{\"u}ller, Wolfram},
  title     = {Optimization of the flight style in ski jumping},
  series = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20 - 25, 2014, Barcelona},
  booktitle = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20 - 25, 2014, Barcelona},
  editor    = {Onate, E.},
  organization    = {World Congress on Computational Mechanics <11, 2014, Barcelona>},
  pages     = {799 -- 810},
  year      = {2014},
  language  = {en}
}