Landslide Monitoring Methods: Application of Existing Technologies to Long-Termand Real-time Monitoring of Slope Movements

MoDOT project # TR202016Various landslide monitoring techniques were applied concurrently to a known cut-slope landslide and a previously unknown fill slope failure, both on the Ozark Mountain Highroad (Missouri Route 76) near Branson, Missouri. Both subsurface and drone-based monitoring techniques were employed so that the strengths and weaknesses of the various monitoring techniques could be compared. Slope inclinometer casings and vibrating wire piezometers were installed at the three borings drilled in the project area. An in-place inclinometer was installed in one boring to demonstrate the effectiveness of instrumented landslide monitoring. Dataloggers were connected to a cellular modem to enable real-time monitoring of the instruments through a web-based interface. LiDAR data was collected by drone annually. The research team developed a subsurface geometry for both slides and identified movement triggering events. The team also compared the various monitoring techniques to provide guidance for future selection of long-term monitoring methods at other unstable slopes

The status of textile-based dry EEG electrodes

Electroencephalogram (EEG) is the biopotential recording of electrical signals generated by brain activity. It is useful for monitoring sleep quality and alertness, clinical applications, diagnosis, and treatment of patients with epilepsy, disease of Parkinson and other neurological disorders, as well as continuous monitoring of tiredness/ alertness in the field. We provide a review of textile-based EEG. Most of the developed textile-based EEGs remain on shelves only as published research results due to a limitation of flexibility, stickability, and washability, although the respective authors of the works reported that signals were obtained comparable to standard EEG. In addition, nearly all published works were not quantitatively compared and contrasted with conventional wet electrodes to prove feasibility for the actual application. This scenario would probably continue to give a publication credit, but does not add to the growth of the specific field, unless otherwise new integration approaches and new conductive polymer composites are evolved to make the application of textile-based EEG happen for bio-potential monitoring

Single cell analysis of neutrophils NETs by Microscopic LSPR imaging system

A simple microengraving cell monitoring method for neutrophil extracellular traps (NETs) released from single neutrophils has been realized using a polydimethylsiloxane (PDMS) microwell array (MWA) sheet on a plasmon chip platform. An imbalance between NETs formation and the succeeding degradation (NETosis) are considered associated with autoimmune disease and its pathogenesis. Thus, an alternative platform that can conduct monitoring of this activity on single cell level at minimum cost but with great sensitivity is greatly desired. The developed MWA plasmon chips allow single cell isolation of neutrophils from 150 μL suspension (6.0 × 105 cells/mL) with an efficiency of 36.3%; 105 microwells with single cell condition. To demonstrate the utility of the chip, trapped cells were incubated between 2 to 4 h after introducing with 100 nM phorbol 12- myristate 13-acetate (PMA) before measurement. Under observation using a hyperspectral imaging system that allows high-throughput screening, the neutrophils stimulated by PMA solution show a significant release of fibrils and NETs after 4 h, with observed maximum areas between 314–758 μm2. An average absorption peak wavelength shows a redshift of Δλ = 1.5 nm as neutrophils release NETs

An Integrated Software-based Solution for Modular and Self-independent Networked Robot

An integrated software-based solution for a modular and self-independent networked robot is introduced. The wirelessly operatable robot has been developed mainly for autonomous monitoring works with full control over web. The integrated software solution covers three components : a) the digital signal processing unit for data retrieval and monitoring system; b) the externally executable codes for control system; and c) the web programming for interfacing the end-users with the robot. It is argued that this integrated software-based approach is crucial to realize a flexible, modular and low development cost mobile monitoring apparatus.Comment: 9 pages, Proceeding of the 10th International Conference on Control, Automation, Robotics and Visio