Results 31 to 40 of about 2,814,612 (301)

Modeling the Electrostatic Actuation of Nanomechanical Pillar Dimers

open access: yesFrontiers in Mechanical Engineering, 2021
With their unparalleled mass sensitivity, enabling single-molecule mass spectrometry, nanomechanical resonators have the potential to considerably improve existing sensor technology.
Andreas Kainz   +3 more
doaj   +1 more source

Direct hemoglobin measurement by monolithically integrated optical beam guidance [PDF]

open access: yes, 2005
We present a concept for optical beam guidance by total internal reflection (TIR) at V-grooves as retro reflectors which are monolithically integrated on a microfluidic "lab-on-a-disk".
Brefka, T.   +8 more
core   +1 more source

Pathogen Sensors [PDF]

open access: yesSensors, 2009
The development of sensors for detecting foodborne pathogens has been motivated by the need to produce safe foods and to provide better healthcare. However, in the more recent times, these needs have been expanded to encompass issues relating to biosecurity, detection of plant and soil pathogens, microbial communities, and the environment. The range of
openaire   +3 more sources

CALIBRATING PHOTOGRAMMETRIC AIRBORNE CAMERA SYSTEMS WITH DIFFRACTIVE OPTICAL ELEMENTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
This paper presents a laboratory approach for geometric calibration of airborne camera systems. The setup uses an incoming laser beam, which is split by Diffractive Optical Elements (DOE) into a number of beams with precisely-known propagation directions.
D. Dahlke   +6 more
doaj   +1 more source

Parallelization of chip-based fluorescence immuno-assays with quantum-dot labelled beads [PDF]

open access: yes, 2005
This paper presents an optical concept for the read-out of a parallel, bead-based fluorescence immunoassay conducted on a lab-on-a-disk platform. The reusable part of the modular setup comprises a detection unit featuring a single LED as light source ...
Brenner, T.   +10 more
core   +1 more source

Biomolecular sensing using surface micromachined silicon plates [PDF]

open access: yes, 2007
Micromachined sensors to detect surface stress changes associated with interactions between an immobilized chemically selective receptor and a target analyte are presented.
Carlen, E.T.   +5 more
core   +2 more sources

Characterization of a Micro-Opto-Mechanical Transducer for the Electric Field Strength

open access: yesProceedings, 2018
We report on a new optical sensing principle for measuring the electric field strength based on MEMS technology. This method allows for distortion-free and point-like measurements with high stability regarding temperature.
Wilfried Hortschitz   +7 more
doaj   +1 more source

Ultrathin 2 nm gold as impedance-matched absorber for infrared light

open access: yesNature Communications, 2020
Long-term stability and broad spectral response are highly desired features of absorbers. Here, the authors report impedance matched absorbers based on 2 nm thick gold layer operating within the mid-infrared range from 2 to 20 μm, enabling stable long ...
Niklas Luhmann   +7 more
doaj   +1 more source

Sensor Network Localization for Moving Sensors [PDF]

open access: yes2012 IEEE 12th International Conference on Data Mining Workshops, 2012
Sensor network localization (SNL) is the problem of determining the locations of the sensors given sparse and usually noisy inter-communication distances among them. In this work we propose an iterative algorithm named PLACEMENT to solve the SNL problem.
Arvind Agarwal   +3 more
openaire   +1 more source

Passive UHF RFID Tilt Sensor [PDF]

open access: yes, 2015
In this paper we introduce a bio-axis passive wireless UHF RFID tilt sensor for applications such as to increase safety in warehouse environment and damage detection in consumer goods and where long term monitoring of the product is essential without the
Batchelor, John C., Ziai, Mohamed A.
core   +1 more source

Home - About - Disclaimer - Privacy