@inproceedings{TranStaat2021, author = {Tran, Ngoc Trinh and Staat, Manfred}, title = {FEM shakedown analysis of Kirchhoff-Love plates under uncertainty of strength}, series = {Proceedings of UNCECOMP 2021}, booktitle = {Proceedings of UNCECOMP 2021}, isbn = {978-618-85072-6-5}, doi = {10.7712/120221.8041.19047}, pages = {323 -- 338}, year = {2021}, abstract = {A new formulation to calculate the shakedown limit load of Kirchhoff plates under stochastic conditions of strength is developed. Direct structural reliability design by chance con-strained programming is based on the prescribed failure probabilities, which is an effective approach of stochastic programming if it can be formulated as an equivalent deterministic optimization problem. We restrict uncertainty to strength, the loading is still deterministic. A new formulation is derived in case of random strength with lognormal distribution. Upper bound and lower bound shakedown load factors are calculated simultaneously by a dual algorithm.}, language = {en} } @inproceedings{TranMatthiesStavroulakisetal.2018, author = {Tran, Ngoc Trinh and Matthies, Hermann G. and Stavroulakis, Georgios Eleftherios and Staat, Manfred}, title = {Direct plastic structural design by chance constrained programming}, series = {6th European Conference on Computational Mechanics (ECCM 6), 7th European Conference on Computational Fluid Dynamics (ECFD 7), 11-15 June 2018, Glasgow, UK}, booktitle = {6th European Conference on Computational Mechanics (ECCM 6), 7th European Conference on Computational Fluid Dynamics (ECFD 7), 11-15 June 2018, Glasgow, UK}, pages = {12 Seiten}, year = {2018}, abstract = {We propose a stochastic programming method to analyse limit and shakedown of structures under random strength with lognormal distribution. In this investigation a dual chance constrained programming algorithm is developed to calculate simultaneously both the upper and lower bounds of the plastic collapse limit or the shakedown limit. The edge-based smoothed finite element method (ES-FEM) using three-node linear triangular elements is used.}, language = {en} } @phdthesis{Tran2019, author = {Tran, Ngoc Trinh}, title = {Limit and Shakedown analysis of structures under stochastic conditions}, publisher = {Technische Universit{\"a}t Braunschweig}, address = {Braunschweig}, doi = {10.24355/dbbs.084-201902121135-0}, pages = {166 S.}, year = {2019}, language = {en} } @incollection{TranTranMatthiesetal.2017, author = {Tran, N. T. and Tran, Thanh Ngoc and Matthies, M. G. and Stavroulakis, G. E. and Staat, Manfred}, title = {Shakedown Analysis Under Stochastic Uncertainty by Chance Constrained Programming}, series = {Advances in Direct Methods for Materials and Structures}, booktitle = {Advances in Direct Methods for Materials and Structures}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-59810-9}, doi = {10.1007/978-3-319-59810-9_6}, pages = {85 -- 103}, year = {2017}, abstract = {In this paper we propose a stochastic programming method to analyse limit and shakedown of structures under uncertainty condition of strength. Based on the duality theory, the shakedown load multiplier formulated by the kinematic theorem is proved actually to be the dual form of the shakedown load multiplier formulated by static theorem. In this investigation a dual chance constrained programming algorithm is developed to calculate simultaneously both the upper and lower bounds of the plastic collapse limit and the shakedown limit. The edge-based smoothed finite element method (ES-FEM) with three-node linear triangular elements is used for structural analysis.}, language = {en} } @article{TranMottaghyArltKoerferetal.2017, author = {Tran, Linda and Mottaghy, K. and Arlt-K{\"o}rfer, Sabine and Waluga, Christian and Behbahani, Mehdi}, title = {An experimental study of shear-dependent human platelet adhesion and underlying protein-binding mechanisms in a cylindrical Couette system}, series = {Biomedizinische Technik}, volume = {62}, journal = {Biomedizinische Technik}, number = {4}, publisher = {De Gruyter}, address = {Berlin}, issn = {0013-5585}, doi = {10.1515/bmt-2015-0034}, pages = {383 -- 392}, year = {2017}, language = {en} } @article{TopcuMadabhushiStaat2022, author = {Top{\c{c}}u, Murat and Madabhushi, Gopal S.P. and Staat, Manfred}, title = {A generalized shear-lag theory for elastic stress transfer between matrix and fibres having a variable radius}, series = {International Journal of Solids and Structures}, volume = {239-240}, journal = {International Journal of Solids and Structures}, number = {Art. No. 111464}, publisher = {Elsevier}, address = {New York, NY}, issn = {0020-7683}, doi = {10.1016/j.ijsolstr.2022.111464}, year = {2022}, abstract = {A generalized shear-lag theory for fibres with variable radius is developed to analyse elastic fibre/matrix stress transfer. The theory accounts for the reinforcement of biological composites, such as soft tissue and bone tissue, as well as for the reinforcement of technical composite materials, such as fibre-reinforced polymers (FRP). The original shear-lag theory proposed by Cox in 1952 is generalized for fibres with variable radius and with symmetric and asymmetric ends. Analytical solutions are derived for the distribution of axial and interfacial shear stress in cylindrical and elliptical fibres, as well as conical and paraboloidal fibres with asymmetric ends. Additionally, the distribution of axial and interfacial shear stress for conical and paraboloidal fibres with symmetric ends are numerically predicted. The results are compared with solutions from axisymmetric finite element models. A parameter study is performed, to investigate the suitability of alternative fibre geometries for use in FRP.}, language = {en} } @misc{TopcuMadabhushiStaat2022, author = {Topcu, Murat and Madabhushi, Gopal Santana Phani and Staat, Manfred}, title = {Datasets from FEM Simulations done with COMSOL Multiphysics and Code_Aster}, doi = {10.6084/m9.figshare.19333295.v2}, year = {2022}, abstract = {Datasets from FEM Simulations done with COMSOL Multiphysics and Code_Aster for an elastic stress transfer between matrix and fibres having a variable radius.}, language = {en} } @article{ThustSchoeningFrohnhoffetal.1996, author = {Thust, Marion and Sch{\"o}ning, Michael Josef and Frohnhoff, S. and Arens-Fischer, R. and Kordos, P. and L{\"u}th, H.}, title = {Porous silicon as a substrate material for potentiometric biosensors}, series = {Measurement Science and Technology}, volume = {7}, journal = {Measurement Science and Technology}, number = {1}, doi = {10.1088/0957-0233/7/1/003}, pages = {26 -- 29}, year = {1996}, language = {en} } @article{ThustSchoeningSchrothetal.1999, author = {Thust, M. and Sch{\"o}ning, Michael Josef and Schroth, P. and Malkoc, {\"U}. and Dicker, C. I. and Steffen, A. and Kordos, P. and L{\"u}th, H.}, title = {Enzyme immobilisation on planar and porous silicon substrates for biosensor applications}, series = {Journal of Molecular Catalysis B: Enzymatic. 7 (1999), H. 1-4}, journal = {Journal of Molecular Catalysis B: Enzymatic. 7 (1999), H. 1-4}, isbn = {1381-1177}, pages = {77 -- 83}, year = {1999}, language = {en} } @article{ThustSchrothToepleretal.1998, author = {Thust, M. and Schroth, P. and T{\"o}pler, A. and Sch{\"o}ning, Michael Josef and M{\"u}ller-Veggian, Mattea and Kordos, P. and L{\"u}th, H.}, title = {Improving the detection limit of a capacitive sensor by means of a diffusion barrier}, series = {Eurosensors XII : proceedings of the 12th European Conference on Solid-State Transducers and the 9th UK Conference on Sensors and their Applications, Southampton, UK, 13 - 16 September 1998 / ed. by N. M. White ; Vol. 1}, journal = {Eurosensors XII : proceedings of the 12th European Conference on Solid-State Transducers and the 9th UK Conference on Sensors and their Applications, Southampton, UK, 13 - 16 September 1998 / ed. by N. M. White ; Vol. 1}, publisher = {Inst. of Physics Publ.}, address = {Bristol [u.a.]}, isbn = {0-7503-0595-9}, pages = {507 -- 510}, year = {1998}, language = {en} } @article{ThustPoghossianSchoeningetal.1999, author = {Thust, M. and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Naser, S. and M{\"u}ller-Veggian, Mattea and Kordos, P. and L{\"u}th, H.}, title = {Crosssensitivity of a capacitive penicillin sensor combined with a diffusion barrier}, series = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. Vol 1.}, journal = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. Vol 1.}, address = {The Hague, The Netherlands}, isbn = {90-76699-02-X}, pages = {573 -- 576}, year = {1999}, language = {en} } @article{ThustPoghossianSchoeningetal.1999, author = {Thust, M. and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Naser, S. and M{\"u}ller-Veggian, Mattea and Kordos, P. and L{\"u}th, H.}, title = {Cross-sensitivity of a capacitive penicillin sensor combined with a diffusion barrier}, series = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. - Vol 1.}, journal = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. - Vol 1.}, address = {The Hague, The Netherlands}, isbn = {90-76699-02-X}, pages = {573 -- 576}, year = {1999}, language = {en} } @article{ThiebesKleinZingsheimetal.2022, author = {Thiebes, Anja Lena and Klein, Sarah and Zingsheim, Jonas and M{\"o}ller, Georg H. and G{\"u}rzing, Stefanie and Reddemann, Manuel A. and Behbahani, Mehdi and Cornelissen, Christian G.}, title = {Effervescent atomizer as novel cell spray technology to decrease the gas-to-liquid ratio}, series = {pharmaceutics}, volume = {14}, journal = {pharmaceutics}, number = {11}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/pharmaceutics14112421}, pages = {Artikel 2421}, year = {2022}, abstract = {Cell spraying has become a feasible application method for cell therapy and tissue engineering approaches. Different devices have been used with varying success. Often, twin-fluid atomizers are used, which require a high gas velocity for optimal aerosolization characteristics. To decrease the amount and velocity of required air, a custom-made atomizer was designed based on the effervescent principle. Different designs were evaluated regarding spray characteristics and their influence on human adipose-derived mesenchymal stromal cells. The arithmetic mean diameters of the droplets were 15.4-33.5 µm with decreasing diameters for increasing gas-to-liquid ratios. The survival rate was >90\% of the control for the lowest gas-to-liquid ratio. For higher ratios, cell survival decreased to approximately 50\%. Further experiments were performed with the design, which had shown the highest survival rates. After seven days, no significant differences in metabolic activity were observed. The apoptosis rates were not influenced by aerosolization, while high gas-to-liquid ratios caused increased necrosis levels. Tri-lineage differentiation potential into adipocytes, chondrocytes, and osteoblasts was not negatively influenced by aerosolization. Thus, the effervescent aerosolization principle was proven suitable for cell applications requiring reduced amounts of supplied air. This is the first time an effervescent atomizer was used for cell processing.}, language = {en} } @article{TersteggeWeberHerzogetal.1997, author = {Terstegge, Andreas and Weber, Stefan and Herzog, H. and Reinartz, R. [u.a.]}, title = {The design of an animal PET: flexible geometry for achieving optimal spatial resolution or high sensitivity}, series = {IEEE transactions on medical imaging. 16 (1997), H. 5}, journal = {IEEE transactions on medical imaging. 16 (1997), H. 5}, isbn = {0278-0062}, pages = {684 -- 689}, year = {1997}, language = {en} } @article{TersteggeWeberHerzogetal.1996, author = {Terstegge, Andreas and Weber, Stefan and Herzog, H. and M{\"u}ller-G{\"a}rtner, Hans- W. [u.a.]}, title = {High resolution and better quantification by tube of responsemodelling in 3D PET reconstruction}, series = {Selected papers from the 1996 Nuclear Science Symposium : Marriott Hotel, Anaheim, California, November 3rd - November 9th, 1996}, journal = {Selected papers from the 1996 Nuclear Science Symposium : Marriott Hotel, Anaheim, California, November 3rd - November 9th, 1996}, publisher = {Inst. of Electrical and Electronic Engineers}, address = {New York}, pages = {1603 -- 1607}, year = {1996}, language = {en} } @inproceedings{TersteggeWeberHerzogetal.1997, author = {Terstegge, Andreas and Weber, S. and Herzog, H. and M{\"u}ller-G{\"a}rtner, H. W. and Halling, H.}, title = {Design and implementation aspects of a 3D reconstruction algorithm for the J{\"u}lich TierPET system}, series = {1997 International Meeting on Fully ThreeDimensional Image Reconstruction in Radiology and Nuclear Medicine : 3D97}, booktitle = {1997 International Meeting on Fully ThreeDimensional Image Reconstruction in Radiology and Nuclear Medicine : 3D97}, pages = {170 -- 173}, year = {1997}, language = {en} } @article{TersteggeFlachskampfFrankeetal.1995, author = {Terstegge, Andreas and Flachskampf, F. A. and Franke, A. and Job, F. P. [u.a.]}, title = {Three-dimensional reconstruction of cardiac structures from transesophageal echocardiography}, series = {American journal of cardiac imaging. 9 (1995), H. 2}, journal = {American journal of cardiac imaging. 9 (1995), H. 2}, isbn = {0887-7971}, pages = {141 -- 147}, year = {1995}, language = {en} } @article{TemizArtmannYolcuogluOnaletal.1999, author = {Temiz Artmann, Ayseg{\"u}l and Yolcuoglu, B. and Onal, M. A. and Sipahi, O.}, title = {The effect of skin transplantation on tumour growth in mice. Yolcuoglu, B.; Onal, M. A.; Sipahi, O.; Temiz, A.; Pekcetin, C.; Acikg{\"o}z, O.; Kar, H.; G{\"u}re A.}, series = {The American Journal of Surgery. 178 (1999), H. 4}, journal = {The American Journal of Surgery. 178 (1999), H. 4}, isbn = {0002-9610}, pages = {329 -- 330}, year = {1999}, language = {en} } @article{TemizArtmannYalcinResmietal.2002, author = {Temiz Artmann, Ayseg{\"u}l and Yalcin, Ozlem and Resmi, Halil and Baskurt, Oguz K.}, title = {Can white blood cell activation be one of the major factors that affect hemorheological parameters during and after exercise?}, series = {Clinical Hemorheology and Microcirculation. 26 (2002), H. 3}, journal = {Clinical Hemorheology and Microcirculation. 26 (2002), H. 3}, isbn = {1386-0291}, pages = {189 -- 193}, year = {2002}, language = {en} } @article{TemizArtmannSaklamazComlekcietal.2005, author = {Temiz Artmann, Ayseg{\"u}l and Saklamaz, Ali and Comlekci, Abdurrahman and Caliskan, Sezer}, title = {The beneficial effects of lipid-lowering drugs beyond lipid-lowering effects: A comparative study with pravastatin, atorvastatin, and fenofibrate in patients with type IIa and type IIb hyperlipidemia / Saklamaz, Ali ; Comlekci, Abdurrahman ; Temiz, Aysegu}, series = {Metabolism. 54 (2005), H. 5}, journal = {Metabolism. 54 (2005), H. 5}, isbn = {0026-0495}, pages = {677 -- 681}, year = {2005}, language = {en} }