13 Result(s)
within
S Schumann
Engineering
English
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Chapter
Modelling and Simulation of Internal Traverse Grinding—From Micro-thermo-mechanical Mechanisms to Process Models
This contribution deals with the modelling and simulation of Internal Traverse Grinding (ITG) using electroplated cubic Boron Nitride (cBN) wheels. This abrasive process fulfils the industrial demands for an e...
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Chapter and Conference Paper
Computer Assisted Planning of Periacetabular Osteotomy with Biomechanical Optimization: Constant Thickness Cartilage Models vs. Patient-Specific Cartilage Models
Periacetabular osteotomy (PAO) is an effective approach for surgical treatment of hip dysplasia in young adults. The aim of PAO surgery is to increase acetabular coverage of the femoral head and to reduce cont...
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Chapter and Conference Paper
Optimization of Acetabulum Reorientation in a Periacetabular Osteotomy by Finite Element Simulation: A Preliminary Study
Periacetabular osteotomy (PAO) is an effective approach for surgical treatment of hip dysplasia in young patients. The aim of PAO is to increase acetabular coverage of the femoral head and to reduce contact pr...
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Article
Low Temperature Grown Be-doped InGaAs/InAlAs Photoconductive Antennas Excited at 1030 nm
We demonstrate pulsed THz emission and detection in low temperature (LT) MBE grown Be-doped InGaAs/InAlAs multi-nanolayer structures for an excitation wavelength of 1030 nm. We obtained spectra with a bandwidt...
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Chapter and Conference Paper
Optical Alveolar Elastometry: On the Optical Determination of Lung Tissue Properties
Mechanical ventilation, which currently is the main treatment for several respiratory diseases, is not yet optimized; i.e., it is still causing damage to the ventilated patients’ lungs. Ventilator settings are...
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Chapter and Conference Paper
Differences in form stability between human non-tumorous alveolar epithelial cells type 2 and alveolar carcinoma cells under biaxial stretching
Stretch during mechanical ventilation induces stress on alveolar epithelial cells (AEC). Experimental mechanostimulation of AEC mimics this stress and helps to understand fundamental processes in consequence o...
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Chapter and Conference Paper
Cardiogenic oscillations reflect the compliance of the respiratory system
The beating heart can be interpreted as an inborn natural oscillator generating mechanical energy. With the ventilated lung in close anatomical neighborhood the generated energy is partially transferred from t...
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Chapter and Conference Paper
Enhanced perception for visually impaired people evaluated in a real time setting
Many aids have been proposed for the visually impaired or the blind. The regular cane is widely accepted but has known limitations such as its short length. Numerous approaches such as ultrasound enhanced cane...
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Chapter and Conference Paper
Fabrication of thin and flexible PDMS membranes for biomechanical test applications
For continuous analysis of mechanical properties of soft biological tissues during mechanical stimulation we developed a bioreactor to apply controlled periodic deflection to a probe. The probe attached on an ...
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Chapter and Conference Paper
On the separate determination of lung mechanics in in- and expiration
Decisions concerning mechanical ventilation setting at the ICU highly depend on knowledge about respiratory mechanics of the patients’ lung. Airway resistance and compliance are different between inspiration a...
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Chapter and Conference Paper
AERBUS: Enhanced perception of the environment for visually impaired people
Many aids have been proposed for the visually impaired or the blind. The regular cane is widely accepted but has known limitations such as a small perceptual range constraint by its short length. Numerous appr...
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Chapter and Conference Paper
Parameter estimation of recruitment models in mechanical ventilation
Intratidal recruitment/derecruitment (R/D) of alveolar space is an important phenomenon which may cause considerable lung injury. Simple models have been proposed to describe pressure [1] or time [2] dependent...
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Article
Newly developed magnesium alloys for powertrain applications
Several new magnesium alloys have been developed recently for high-temperature applications to obtain an optimal combination of die cast-ability, creep resistance, mechanical properties, corrosion performance,...
