Refine
Year of publication
- 2011 (34) (remove)
Document Type
- Article (22)
- Conference Proceeding (6)
- Report (3)
- Doctoral Thesis (2)
- Book (1)
Keywords
- Pflanzenphysiologie (2)
- Pflanzenscanner (2)
- plant scanner (2)
- Anastomose (1)
- Anastomosis (1)
- Arthosetherapie (1)
- Biomechanics (1)
- Biomechanik (1)
- Bioreaktor (1)
- Blutzellenlagerung (1)
- Dattel (1)
- Eisschicht (1)
- Finite element method (1)
- Finite-Elemente-Methode (1)
- Gonarthrose (1)
- Harnleiter (1)
- Hemoglobin structure (1)
- Hämoglobin (1)
- Hämoglobinstruktur (1)
- Kniegelenkarthrose (1)
Institute
- IfB - Institut für Bioengineering (34) (remove)
Summary: This paper presents a methodology to study and understand the mechanics of stapled anastomotic behaviors by combining empirical experimentation and finite element analysis. Performance of stapled anastomosis is studied in terms of leakage and numerical results which are compared to in vitro experiments performed on fresh porcine tissue. Results suggest that leaks occur between the tissue and staple legs penetrating through the tissue.
Plant physiology and plant stress: Plant physiology will be much more important for human mankind because of yield and cultivation limits of crops determined by their resistance to stress. To assess and counteract various stress factors it is necessary to conduct plant research to gain information and results on plant physiology.
We present the novel concept of a combined drilling and melting probe for subsurface ice research. This probe, named “IceMole”, is currently developed, built, and tested at the FH Aachen University of Applied Sciences’ Astronautical Laboratory. Here, we describe its first prototype design and report the results of its field tests on the Swiss Morteratsch glacier. Although the IceMole design is currently adapted to terrestrial glaciers and ice shields, it may later be modified for the subsurface in-situ investigation of extraterrestrial ice, e.g., on Mars, Europa, and Enceladus. If life exists on those bodies, it may be present in the ice (as life can also be found in the deep ice of Earth).
This paper presents a novel numerical procedure for computing limit and shakedown loads of structures using a node-based smoothed FEM in combination with a primal–dual algorithm. An associated primal–dual form based on the von Mises yield criterion is adopted. The primal-dual algorithm together with a Newton-like iteration are then used to solve this associated primal–dual form to determine simultaneously both approximate upper and quasi-lower bounds of the plastic collapse limit and the shakedown limit. The present formulation uses only linear approximations and its implementation into finite element programs is quite simple. Several numerical examples are given to show the reliability, accuracy, and generality of the present formulation compared with other available methods.
Can vascular function be assessed by the interpretation of retinal vascular diameter changes?
(2011)
Tests with palm tree leaves have just started yet and scan data are in the process to be analyzed. The final goal of future project for palm tree gender and species recognition will be to develop optical scanning technology to be applied to date palm tree leaves for in–situ screening purposes. Depending on the software used and the particular requirements of the users the technology potentially shall be able to identify palm tree diseases, palm tree gender, and species of young date palm trees by scanning leaves.