Refine
Year of publication
- 2014 (265) (remove)
Document Type
- Article (138)
- Conference Proceeding (55)
- Part of a Book (30)
- Book (21)
- Report (8)
- Other (6)
- Patent (2)
- Doctoral Thesis (1)
- Master's Thesis (1)
- Video (1)
- Poster (1)
- Talk (1)
Has Fulltext
- no (265) (remove)
Keywords
- Antarctic Glaciology (1)
- Bloom Taxonomy (1)
- Bone sawing (1)
- COMSOL Multiphysics (1)
- Calorimetric gas sensor (1)
- Cryptographic protocols (1)
- DNA hybridization (1)
- Extraterrestrial Glaciology (1)
- Field-effect sensor (1)
- Glaciological instruments and methods (1)
- Hydrogen peroxide (1)
- LAPS (1)
- Light-addressable Potentiometric Sensor (1)
- LiveLink for MATLAB (1)
- Malicious model (1)
- Multi-sensor system (1)
- Optimization module (1)
- Privacy-enhancing technologies (1)
- Secure multi-party computation (1)
- Subclacial exploration (1)
Institute
- Fachbereich Medizintechnik und Technomathematik (58)
- Fachbereich Elektrotechnik und Informationstechnik (41)
- Fachbereich Wirtschaftswissenschaften (41)
- Fachbereich Energietechnik (40)
- INB - Institut für Nano- und Biotechnologien (35)
- Fachbereich Chemie und Biotechnologie (28)
- IfB - Institut für Bioengineering (19)
- Fachbereich Maschinenbau und Mechatronik (15)
- Fachbereich Luft- und Raumfahrttechnik (13)
- Fachbereich Bauingenieurwesen (11)
- Solar-Institut Jülich (5)
- Fachbereich Architektur (3)
- Sonstiges (3)
- ECSM European Center for Sustainable Mobility (1)
- Fachbereich Gestaltung (1)
- Institut fuer Angewandte Polymerchemie (1)
- ZHQ - Bereich Hochschuldidaktik und Evaluation (1)
This article describes the fabrication, characterization and application of an epidermal temporary-transfer tattoo-based potentiometric sensor, coupled with a miniaturized wearable wireless transceiver, for real-time monitoring of sodium in the human perspiration. Sodium excreted during perspiration is an excellent marker for electrolyte imbalance and provides valuable information regarding an individual's physical and mental wellbeing. The realization of the new skin-worn non-invasive tattoo-like sensing device has been realized by amalgamating several state-of-the-art thick film, laser printing, solid-state potentiometry, fluidics and wireless technologies. The resulting tattoo-based potentiometric sodium sensor displays a rapid near-Nernstian response with negligible carryover effects, and good resiliency against various mechanical deformations experienced by the human epidermis. On-body testing of the tattoo sensor coupled to a wireless transceiver during exercise activity demonstrated its ability to continuously monitor sweat sodium dynamics. The real-time sweat sodium concentration was transmitted wirelessly via a body-worn transceiver from the sodium tattoo sensor to a notebook while the subjects perspired on a stationary cycle. The favorable analytical performance along with the wearable nature of the wireless transceiver makes the new epidermal potentiometric sensing system attractive for continuous monitoring the sodium dynamics in human perspiration during diverse activities relevant to the healthcare, fitness, military, healthcare and skin-care domains.
Background
True date palms (Phoenix dactylifera L.) are impressive trees and have served as an indispensable source of food for mankind in tropical and subtropical countries for centuries. The aim of this study is to differentiate date palm tree varieties by analysing leaflet cross sections with technical/optical methods and artificial neural networks (ANN).
Results
Fluorescence microscopy images of leaflet cross sections have been taken from a set of five date palm tree cultivars (Hewlat al Jouf, Khlas, Nabot Soltan, Shishi, Um Raheem). After features extraction from images, the obtained data have been fed in a multilayer perceptron ANN with backpropagation learning algorithm.
Conclusions
Overall, an accurate result in prediction and differentiation of date palm tree cultivars was achieved with average prediction in tenfold cross-validation is 89.1% and reached 100% in one of the best ANN.