A5025056756- Tactile and Sensory Interactions
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Teleoperation and Haptic Systems
- Respiratory Support and Mechanisms
- Motor Control and Adaptation
- Human-Automation Interaction and Safety
- Manufacturing Process and Optimization
- Sensor Technology and Measurement Systems
- Inhalation and Respiratory Drug Delivery
- Advanced Memory and Neural Computing
- Healthcare Technology and Patient Monitoring
- EEG and Brain-Computer Interfaces
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Visual perception and processing mechanisms
- Soft Robotics and Applications
- Physical Unclonable Functions (PUFs) and Hardware Security
- Pulmonary Hypertension Research and Treatments
- Neonatal Respiratory Health Research
- Analytical Chemistry and Chromatography
- Congenital Diaphragmatic Hernia Studies
- High Altitude and Hypoxia
- Robot Manipulation and Learning
- Virtual Reality Applications and Impacts
- Hearing Loss and Rehabilitation
- Respiratory and Cough-Related Research
Technical University of Darmstadt
2011-2022
Institut für Technische Beratung und Produktentwicklung (Germany)
2022
Merck (Germany)
2009-2018
Inserm
1981-2015
Sorbonne Université
1981-2015
Hôpital Saint-Antoine
1981-2015
University of Southern California
1989
Université de Technologie de Compiègne
1987
Platypus is the first system to localize and identify people by remotely passively sensing changes in their body electric potential which occur naturally during walking. While it uses three or more sensors with a maximum range of 2 m, as tag-free does not require user carry any special hardware. We describe physical principles behind changes, predictive mathematical model how this affects passive field sensor. By inverting combining data from sensors, we infer method for localizing...
In this paper, we develop possible realizations of pseudo-haptic feedback in teleoperation systems based on existing works for virtual reality and the intended applications. We derive four potential factors affecting performance haptic (calculation operator, maximum displacement, offset force, scaling factor), which are analyzed three compliance identification experiments. First, analyze principle usability by comparing information transfer measures direct interaction. Pseudo-haptic...
In this work, we present a novel way in which DRAM modules, are found inherently many IoT devices, can be used to enhance the security of such devices. We test robustness two DRAM-based primitives, namely retention-based PUFs and Row Hammer PUFs, external factors, i.e., ambient temperature voltage variations. As both types proven highly dependent on temperature, we, then, discuss ways implement cryptographic applications robust way, no longer being affected by Finally, also proof-of-concept...
Three experiments were carried out to determine absolute and differential thresholds for vibrotactile forces external influences in the frequency range of 5 1,000 Hz at tip index finger. Differential obtained reference stimuli 0.5, 0.25 N, near individual threshold. Frequency, temperature, age, fingertip size, contact force investigated as parameters a full-factorial design. Experiments conducted with least 27 subjects 1up-2down staircase procedure 3IFC paradigm. We find ranging from 1.7 19...
The thoracic trachea and the proximal portion of major bronchi were imaged in five normal volunteers during a forced expiration maneuver using cine-computer-tomography system. Sixteen images two contiguous slices obtained less than 1 is while expiratory flow was recorded at mouth. area decreased rapidly as rate rose to its maximum wave collapse propagated distally. compressive narrowing both pars membranacea ventrolateral wall asymmetric. A contact appeared between posterior left lateral...
Physical Unclonable Functions (PUFs) based on the retention times of cells a Dynamic Random Access Memory (DRAM) can be utilised for implementation cost-efficient and lightweight cryptographic protocols. However, as recent work has demonstrated, needed in order to generate their responses may prohibit widespread usage. To address this issue, Row Hammer PUF been proposed by Schaller et al., which leverages row hammer effect DRAM modules reduce and, therefore, significantly speed up generation...
Abstract Miniaturized force/torque sensors are relevant components for robotic interaction with humans and unknown environments. This paper presents a disruptive manufacturing process multiaxial based on Stewart-Gough platform. The deformation element consists of hexapod geometry six sensing elements total diameter 9 mm. sensor is divided into three steps: 1. Milling planar arrangement out 2 mm steel (1 .4301) plate, 2. applying twelve strain gauges in half-bridge configuration 3. rolling...
This paper presents an experimental evaluation of three different strain measuring principles. Mounted on a steel beam resembling car engine mount, metal foil gauges, piezoresistive silicon gauges and piezoelectric patches are investigated to measure structure-borne forces control active mounting structure. FEA?simulation determines strains be measured in the range 10?8 up 10?5?m???m?1. These low cannot with conventional as shown experiment conducted. Both show good results compared force...
We present a new teleoperation setup for minimally invasive single-port surgery through natural orifices. The system consists of an intra-corporal parallel slave robot with two instrument arms and corresponding master interface four degrees freedom grasping. mimicks the kinematics to prevent non-achievable movements. With workspace ø 60 mm × 85 mm, interaction forces up 5 N mean speeds 327 mm/s is designed perform rectum resection intervention, operation hardly possible conventional...
Abstract Background Impairment of haptic perception by surgical gloves could reduce requirements on systems for surgery. While grip forces and manipulation capabilities were not impaired in previous studies, no data is available thresholds. Methods Absolute differential thresholds (20 dB above threshold) 24 subjects measured frequencies 25 250 Hz with a Ψ‐method. Effects wearing glove, moisture the contact surface subject's experience incorporated full‐factorial experimental design. Results...
Physical Unclonable Functions (PUFs) based on the retention times of cells a Dynamic Random Access Memory (DRAM) can be utilised for implementation cost-efficient and lightweight cryptographic protocols. However, as recent work has demonstrated, needed in order to generate their responses may prohibit widespread usage. In address this issue, Row Hammer PUF been proposed by Schaller et al. [1], which leverages row hammer effect DRAM modules reduce and, therefore, significantly speed up...
Pseudo haptic sensation is an illusion based on visual stimuli. In virtual environments the principle of pseudo feedback used to simulate material properties such as stiffness, mass and friction. Transfering real teleoperation systems can provide a for material, manipulated without active feedback. Hence, implementation reduces requirements kinematic structures actuators user interface .In this work, we discuss usability its application in systems. The mechanisms pseudo-haptic are...
The resistance of a hollow cast human central airways was measured during true sinusoidal airflow oscillations over wide range frequencies (0.5-40 Hz) and for various flow amplitudes up to 8 l/s. Pressure were in the trachea with high-performance transducers, digitized averaged 100 cycles. Data studied at two points cycle: peak inspiratory expiratory flows neighborhoods around zero where airway (Rv approximately equal o) taken as average slope pressure-flow (P-V) curve each zone. When data...